National Library of Energy BETA

Sample records for horizontal surface existing

  1. High-frequency shear-horizontal surface acoustic wave sensor

    DOE Patents [OSTI]

    Branch, Darren W

    2013-05-07

    A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency (.about.300-400 MHz) surface acoustic wave (SAW) transducer enables efficient excitation of shear-horizontal waves on 36.degree. Y-cut lithium tantalate (LTO) giving a highly linear phase response (2.8.degree. P-P). The sensor has the ability to detect at the pg/mm.sup.2 level and can perform multi-analyte detection in real-time. The sensor can be used for rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms.

  2. High-frequency shear-horizontal surface acoustic wave sensor

    DOE Patents [OSTI]

    Branch, Darren W

    2014-03-11

    A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency (.about.300-400 MHz) surface acoustic wave (SAW) transducer enables efficient excitation of shear-horizontal waves on 36.degree. Y-cut lithium tantalate (LTO) giving a highly linear phase response (2.8.degree. P-P). The sensor has the ability to detect at the pg/mm.sup.2 level and can perform multi-analyte detection in real-time. The sensor can be used for rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms.

  3. Lifting surface performance analysis for horizontal axis wind turbines

    SciTech Connect (OSTI)

    Kocurek, D.

    1987-06-01

    This report describes how numerical lifting-surface theory is applied to the calculation of a horizontal-axis wind turbine's aerodynamic characteristics and performance. The report also describes how such an application is implemented as a computer program. The method evolved from rotary-wing and helicopter applications and features a detailed, prescribed wake. The wake model extends from a hovering-rotor experimental generalization to include the effect of the windmill brake state on the radial and axial displacement rates of the trailing vortex system. Performance calculations are made by coupling the lifting-surface circulation solution to a blade-element analysis that incorporates two-dimensional airfoil characteristics as functions of angle of attack and Reynolds number. Several analytical stall models are also provided to extend the airfoil characteristics beyond the limits of available data. Although this work focuses on the steady-performance problem, the method includes ways to investigate the effects of wind-shear profile, tower shadow, and off-axis shaft alignment. Correlating the method to measured wind-turbine performance, and comparing it to blade-element momentum theory calculations, validate and highlight the extreme sensitivity of predictions to the quality of early post-stall airfoil behavior.

  4. Linear mechanism of surface gravity wave generation in horizontally sheared flow

    SciTech Connect (OSTI)

    Kalashnik, M. V.

    2008-01-15

    An analysis is presented of a linear mechanism of surface gravity wave generation in a horizontally sheared flow in a fluid layer with free boundary. A free-surface flow of this type is found to be algebraically unstable. The development of instability leads to the formation of surface gravity waves whose amplitude grows with time according to a power law. Flow stability is analyzed by using a nonmodal approach in which the behavior of a spatial Fourier harmonic of a disturbance is considered in a semi-Lagrangian frame of reference moving with the flow. Shear-flow disturbances are divided into two classes (wave and vortex disturbances) depending on the value of potential vorticity. It is shown that vortex disturbances decay with time while the energy of wave disturbances increases indefinitely. Transformation of vortex disturbances into wave ones under strong shear is described.

  5. Mixed convection heat transfer from thermal sources mounted on horizontal and vertical surfaces

    SciTech Connect (OSTI)

    Tewari, S.S.; Jaluria, Y. )

    1990-11-01

    An experimental study is carried out on the fundamental aspects of the conjugate, mixed convective heat transfer from two finite width heat sources, which are of negligible thickness, have a uniform heat flux input at the surface, and are located on a flat plate in a horizontal or the vertical orientation. The heat sources are wide in the transverse direction and, therefore, a two-dimensional flow circumstance is simulated. The mixed convection parameter is varied over a fairly wide range to include the buoyancy-dominated and the mixed convection regimes. The circumstances of pure natural convection are also investigated. The convective mechanisms have been studied in detail by measuring the surface temperatures and determining the heat transfer coefficients for the two heated strips, which represent isolated thermal sources. Experimental results indicate that a stronger upstream heat source causes an increase in the surface temperature of a relatively weaker heat source, located downstream, by reducing it convective heat transfer coefficient. The influence of the upstream source is found to be strongly dependent on the surface orientation, especially in the pure natural convection and the buoyancy dominated regimes. The two heat sources are found to be essentially independent on the surface orientation, especially in the pure natural convection and the buoyancy dominated regimes. The two heat sources are found to be essentially independent of each other, in terms of thermal effects, at a separation distance of more than about three strip widths for both the orientations. The results obtained are relevant to many engineering applications, such as the cooling of electronic systems, positioning of heating elements in furnaces, and safety considerations in enclosure fires.

  6. Comparison of glass surfaces as a countertop material to existing surfaces

    SciTech Connect (OSTI)

    Turo, Laura A.; Winschell, Abigail E.

    2011-09-01

    Gleen Glass, a small production glass company that creates countertops, was selected for the Technology Assistance Program through Pacific Northwest National Laboratory. Gleen Glass was seeking material property analysis comparing glass as a countertop material to current surfaces (i.e. marble, granite and engineered stone). With samples provided from Gleen Glass, testing was done on granite, marble, and 3 different glass surfaces ('Journey,' 'Pebble,' and 'Gleen'). Results showed the glass surfaces have a lower density, lower water absorption, and are stronger in compressive and flexural tests as compared to granite and marble. Thermal shock tests showed the glass failed when objects with a high thermal mass are placed directly on them, whereas marble and granite did not fracture under these conditions.

  7. Shear-horizontal surface acoustic wave phononic device with high density filling material for ultra-low power sensing applications

    SciTech Connect (OSTI)

    Richardson, M.; Bhethanabotla, V. R.; Sankaranarayanan, S. K. R. S.

    2014-06-23

    Finite element simulations of a phononic shear-horizontal surface acoustic wave (SAW) sensor based on ST 90°-X Quartz reveal a dramatic reduction in power consumption. The phononic sensor is realized by artificially structuring the delay path to form an acoustic meta-material comprised of a periodic microcavity array incorporating high-density materials such as tantalum or tungsten. Constructive interference of the scattered and secondary reflected waves at every microcavity interface leads to acoustic energy confinement in the high-density regions translating into reduced power loss. Tantalum filled cavities show the best performance while tungsten inclusions create a phononic bandgap. Based on our simulation results, SAW devices with tantalum filled microcavities were fabricated and shown to significantly decrease insertion loss. Our findings offer encouraging prospects for designing low power, highly sensitive portable biosensors.

  8. Detection of bioagents using a shear horizontal surface acoustic wave biosensor

    DOE Patents [OSTI]

    Larson, Richard S; Hjelle, Brian; Hall, Pam R; Brown, David C; Bisoffi, Marco; Brozik, Susan M; Branch, Darren W; Edwards, Thayne L; Wheeler, David

    2014-04-29

    A biosensor combining the sensitivity of surface acoustic waves (SAW) generated at a frequency of 325 MHz with the specificity provided by antibodies and other ligands for the detection of viral agents. In a preferred embodiment, a lithium tantalate based SAW transducer with silicon dioxide waveguide sensor platform featuring three test and one reference delay lines was used to adsorb antibodies directed against Coxsackie virus B4 or the negative-stranded category A bioagent Sin Nombre virus (SNV). Rapid detection of increasing concentrations of viral particles was linear over a range of order of magnitude for both viruses, and the sensor's selectivity for its target was not compromised by the presence of confounding Herpes Simplex virus type 1 The biosensor was able to delect SNV at doses lower than the load of virus typically found in a human patient suffering from hantavirus cardiopulmonary syndrome (HCPS).

  9. ARM - Measurement - Horizontal wind

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govMeasurementsHorizontal wind ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Horizontal wind The horizontal wind in terms of either speed and direction, or the zonal (u) and meridional (v) components. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a

  10. Horizontal Plate Plate

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Unknown Title: Horizontal Plate Plate GeospatialDataPresentationForm: vector digital data OnlineLinkage:

  11. Horizontal well planning

    SciTech Connect (OSTI)

    Schuh, F.J. )

    1991-03-01

    Interest in horizontal drilling has exploded at a rate well above even the most optimistic projections. Certainly, this technique will not end with the Bakken and Austin Chalk plays. However, future reservoirs will undoubtedly require much more complicated well designs and multi-disciplined technical interaction than has been used so far. The horizontal drilling costs are too high to permit resolving of all the technical issues by trial and error. A multi-disciplinary team approach will be required in order for horizontal drilling to achieve its economic potential.

  12. Summary and evaluation of existing geological and geophysical data near prospective surface facilities in Midway Valley, Yucca Mountain Project, Nye County, Nevada; Yucca Mountain Site Characterization Project

    SciTech Connect (OSTI)

    Gibson, J.D.; Swan, F.H.; Wesling, J.R.; Bullard, T.F.; Perman, R.C.; Angell, M.M.; DiSilvestro, L.A.

    1992-01-01

    Midway Valley, located at the eastern base of the Yucca Mountain in southwestern Nevada, is the preferred location of the surface facilities for the potential high-level nuclear waste repository at Yucca Mountain. One goal in siting these surface facilities is to avoid faults that could produce relative displacements in excess of 5 cm in the foundations of the waste-handling buildings. This study reviews existing geologic and geophysical data that can be used to assess the potential for surface fault rupture within Midway Valley. Dominant tectonic features in Midway Valley are north-trending, westward-dipping normal faults along the margins of the valley: the Bow Ridge fault to the west and the Paintbrush Canyon fault to the east. Published estimates of average Quaternary slip rates for these faults are very low but the age of most recent displacement and the amount of displacement per event are largely unknown. Surface mapping and interpretive cross sections, based on limited drillhole and geophysical data, suggest that additional normal faults, including the postulated Midway Valley fault, may exist beneath the Quaternary/Tertiary fill within the valley. Existing data, however, are inadequate to determine the location, recency, and geometry of this faulting. To confidently assess the potential for significant Quaternary faulting in Midway Valley, additional data are needed that define the stratigraphy and structure of the strata beneath the valley, characterize the Quaternary soils and surfaces, and establish the age of faulting. The use of new and improved geophysical techniques, combined with a drilling program, offers the greatest potential for resolving subsurface structure in the valley. Mapping of surficial geologic units and logging of soil pits and trenches within these units must be completed, using accepted state-of-the-art practices supported by multiple quantitative numerical and relative age-dating techniques.

  13. Horizontal drilling spurs optimism

    SciTech Connect (OSTI)

    Crouse, P.C. )

    1991-02-01

    1990 proved to be an exciting year for horizontal wells. This budding procedure appears to be heading for the mainstream oil and gas market, because it can more efficiently recover hydrocarbons from many reservoirs throughout the world. This paper reports on an estimated 1,000 wells that were drilled horizontally (all laterals) in 1990, with the Austin Chalk formation of Texas accounting for about 65% of all world activity. The Bakken Shale play in Montana and North Dakota proved to be the second most active area, with an estimated 90 wells drilled. Many operators in this play have indicated the bloom may be off the Bakken because of poor results outside the nose of the formation, further complicated by some of the harshest rock, reservoir and completion problems posed to horizontal technology.

  14. Horizontal Advanced Tensiometer

    DOE Patents [OSTI]

    Hubbell, Joel M.; Sisson, James B.

    2004-06-22

    An horizontal advanced tensiometer is described that allows the monitoring of the water pressure of soil positions, particularly beneath objects or materials that inhibit the use of previous monitoring wells. The tensiometer includes a porous cup, a pressure transducer (with an attached gasket device), an adaptive chamber, at least one outer guide tube which allows access to the desired horizontal position, a transducer wire, a data logger and preferably an inner guide tube and a specialized joint which provides pressure on the inner guide tube to maintain the seal between the gasket of the transducer and the adaptive chamber.

  15. Successful horizontal completions require an integrated approach

    SciTech Connect (OSTI)

    Richard, B.; Smejkal, K.; Penberthy, W. Jr.

    1997-01-01

    While a perfect well completion may not exist, depleting a hydrocarbon resource at a sustained high rate--without a workover--is the ultimate goal. Unfortunately, many horizontal well completions fail to achieve this due to wellbore damage or loss of reservoir pressure. These conditions manifest themselves in reduced production rates, extended well life and reduced profitability. Standard completion techniques are not always compatible with each other for site specific well applications. The combination of two incompatible technologies or slight changes in a completion procedure may negatively impact productivity. Hence, the most successful horizontal completion results are obtained using a compatible integrated system approach--an approach that carefully combines the best completion tools and processes to deliver an undamaged well completed at the lowest possible cost. After studying the compatibilities of various drill-in fluids, screens, filter cakes and gravel packs, recommended procedures are presented for successfully completing horizontal wells.

  16. Steerable vertical to horizontal energy transducer for mobile robots

    DOE Patents [OSTI]

    Spletzer, Barry L.; Fischer, Gary J.; Feddema, John T.

    2001-01-01

    The present invention provides a steerable vertical to horizontal energy transducer for mobile robots that less complex and requires less power than two degree of freedom tilt mechanisms. The present invention comprises an end effector that, when mounted with a hopping actuator, translates along axis (typically vertical) actuation into combined vertical and horizontal motion. The end effector, or foot, mounts with an end of the actuator that moves toward the support surface (typically a floor or the earth). The foot is shaped so that the first contact with the support surface is off the axis of the actuator. Off-axis contact with the support surface generates an on-axis force (typically resulting in vertical motion) and a moment orthogonal to the axis. The moment initiates a horizontal tumbling motion, and tilts the actuator so that its axis is oriented with a horizontal component and continued actuation generates both vertical and horizontal force.

  17. Horizontal baffle for nuclear reactors

    DOE Patents [OSTI]

    Rylatt, John A. (Monroeville, PA)

    1978-01-01

    A horizontal baffle disposed in the annulus defined between the core barrel and the thermal liner of a nuclear reactor thereby physically separating the outlet region of the core from the annular area below the horizontal baffle. The horizontal baffle prevents hot coolant that has passed through the reactor core from thermally damaging apparatus located in the annulus below the horizontal baffle by utilizing the thermally induced bowing of the horizontal baffle to enhance sealing while accommodating lateral motion of the baffle base plate.

  18. SATURATED-SUBCOOLED STRATIFIED FLOW IN HORIZONTAL PIPES

    SciTech Connect (OSTI)

    Richard Schultz

    2010-08-01

    Advanced light water reactor systems are designed to use passive emergency core cooling systems with horizontal pipes that provide highly subcooled water from water storage tanks or passive heat exchangers to the reactor vessel core under accident conditions. Because passive systems are driven by density gradients, the horizontal pipes often do not flow full and thus have a free surface that is exposed to saturated steam and stratified flow is present.

  19. An Analysis of the Temperature and Field Dependence of the RF Surface Resistance of Nitrogen-Doped Niobium SRF Cavities with Respect to Existing Theoretical Models

    SciTech Connect (OSTI)

    Reece, Charles E.; Palczewski, Ari D.; Xiao, Binping

    2015-09-01

    Recent progress with the reduction of rf surface resistance (Rs) of niobium SRF cavities via the use of high temperature surface doping by nitrogen has opened a new regime for energy efficient accelerator applications. For particular doping conditions one observes dramatic decreases in Rs with increasing surface magnetic fields. The observed variations as a function of temperature may be analyzed in the context of recent theoretical treatments in hopes of gaining insight into the underlying beneficial mechanism of the nitrogen treatment. Systematic data sets of Q0 vs. Eacc vs. temperature acquired during the high Q0 R&D work of the past year will be compared with theoretical model predictions.1, 2 1. B. P. Xiao, C. E. Reece and M. J. Kelley, Physica C: Superconductivity 490 (0), 26-31 (2013). 2. A. Gurevich, PRL 113 (8), 087001 (2014).

  20. Nuclear component horizontal seismic restraint

    DOE Patents [OSTI]

    Snyder, Glenn J.

    1988-01-01

    A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The reactor vessel and reactor guard vessel use thicker section roll-forged rings welded between the vessel straight shell sections and the bottom hemispherical head sections. The inside of the reactor guard vessel ring forging contains local vertical dovetail slots and upper ledge pockets to mount and retain field fitted and installed blocks. As an option, the horizontal displacement of the reactor vessel core support cone can be limited by including shop fitted/installed local blocks in opposing alignment with the reactor vessel forged ring. Beams embedded in the wall of the reactor building protrude into apertures in the thermal insulation shell adjacent the reactor guard vessel ring and have motion limit blocks attached thereto to provide to a predetermined clearance between the blocks and reactor guard vessel ring.

  1. Uses of ANSI/HPS N13.12-1999, "Surface and Volume Radioactivity Standards for Clearance" and Comparison with Existing Standards

    SciTech Connect (OSTI)

    Stansbury, Paul S.; Strom, Daniel J.

    2001-04-30

    In August of 1999, the American National Standards Institute (ANSI) approved a standard for clearance of materials contaminated with residual levels of radioactivity. "Clearance," as used in the standard, means the movement of material from the control of a regulatory agency to a use or disposition that has no further regulatory controls of any kind. The standard gives derived screening levels (DSLs) in Bq/g and Bq/cm2 for 50 radionuclides. Items or materials with residual surface and volume radioactivity levels below the DSLs can be cleared, that is, managed without regard to their residual radioactivity. Since federal agencies are to use voluntary, industry standards developed by the private sector whenever possible, the standard should play an important role in DOE's regulatory process. The thrust of this report is to explain the standard, make simple observations on its usefulness to DOE, and to explore uses of the standard within DOE facilities beyond the clearance of radioactive materials.

  2. Method and application of horizontal slice volumetrics to waterflood management and horizontal drilling

    SciTech Connect (OSTI)

    Deshpande, A.; Flemings, P.B. ); Huang, J. )

    1996-01-01

    A computer mapping program was used to make horizontal slices of pore volume. The goal was to create maps that showed the distribution of pore volume vertically and laterally throughout the reservoir. That information was used for studying waterflood feasibility, monitoring an existing waterflood, and planning a horizontal well. This work was done at the United States Naval Petroleum Reserve No. 1, Elk Hills, CA. The reservoirs are the Miocene aged Northwest Stevens A sands and T N sands. These sands are a series of stacked deep water turbidites draped across the western nose of a plunging anticline. To determine the reservoir sensitivity to the approach used to calculate horizontal slice volume, two methods were tested. The first involves creation of four isochores, bounded above by the sand top or base and below by the slice top or base, whose volumes are combined to give the slice volume. The second involves creation of a grid of the slice itself from which slice volume is calculated.

  3. Method and application of horizontal slice volumetrics to waterflood management and horizontal drilling

    SciTech Connect (OSTI)

    Deshpande, A.; Flemings, P.B.; Huang, J.

    1996-12-31

    A computer mapping program was used to make horizontal slices of pore volume. The goal was to create maps that showed the distribution of pore volume vertically and laterally throughout the reservoir. That information was used for studying waterflood feasibility, monitoring an existing waterflood, and planning a horizontal well. This work was done at the United States Naval Petroleum Reserve No. 1, Elk Hills, CA. The reservoirs are the Miocene aged Northwest Stevens A sands and T & N sands. These sands are a series of stacked deep water turbidites draped across the western nose of a plunging anticline. To determine the reservoir sensitivity to the approach used to calculate horizontal slice volume, two methods were tested. The first involves creation of four isochores, bounded above by the sand top or base and below by the slice top or base, whose volumes are combined to give the slice volume. The second involves creation of a grid of the slice itself from which slice volume is calculated.

  4. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2003-10-24

    Improved ground-imaging capabilities have enormous potential to increase energy, environmental, and economic benefits by improving exploration accuracy and reducing energy consumption during the mining cycle. Seismic tomography has been used successfully to monitor and evaluate geologic conditions ahead of a mining face. A primary limitation to existing seismic tomography, however, is the placement of sensors. The goal of this project is to develop an array of 24 seismic sensors capable of being mounted in either a vertical or horizontal borehole. Development of this technology reduces energy usage in excavation, transportation, ventilation, and processing phases of the mining operation because less waste is mined and the mining cycle suffers fewer interruptions. This new technology benefits all types of mines, including metal/nonmetal, coal, and quarrying. The primary research tasks focused on sensor placement method, sensor housing and clamping design, and cabling and connector selection. An initial design is described in the report. Following assembly, a prototype was tested in the laboratory as well as at a surface stone quarry. Data analysis and tool performance were used for subsequent design modifications. A final design is described, of which several components are available for patent application. Industry partners have shown clear support for this research and demonstrated an interest in commercialization following project completion.

  5. Industry survey for horizontal wells. Final report

    SciTech Connect (OSTI)

    Wilson, D.D.; Kaback, D.S. [CDM Federal Programs Corp., Denver, CO (United States); Denhan, M.E. [Westinghouse Savannah River Co., Aiken, SC (United States); Watkins, D. [CDM Federal Programs Corp., Aiken, SC (United States)

    1993-07-01

    An international survey of horizontal environmental wells was performed during May and June of 1993. The purpose of the survey was to provide the environmental industry with an inventory of horizontal environmental wells and information pertaining to the extent of the use of horizontal environmental wells, the variety of horizontal environmental well applications, the types of geologic and hydrogeologic conditions within which horizontal environmental wells have been installed, and the companies that perform horizontal environmental well installations. Other information, such as the cost of horizontal environmental well installations and the results of tests performed on the wells, is not complete but is provided as general information with the caveat that the information should not be used to compare drilling companies. The result of the survey is a catalogue of horizontal environmental wells that are categorized by the objective or use of the wells, the vertical depth of the wells, and the drilling company contracted to install the wells.

  6. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1981-03-05

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  7. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, Bernard M.; Miyano, Kenjiro; Ketterson, John B.

    1983-01-01

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  8. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1983-11-08

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed. 5 figs.

  9. Existing Facilities Rebate Program

    Broader source: Energy.gov [DOE]

    The NYSERDA Existing Facilities program merges the former Peak Load Reduction and Enhanced Commercial and Industrial Performance programs. The new program offers a broad array of different...

  10. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-07-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method of emplacing the array in a long, horizontal borehole. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  11. Horizontal drilling improves recovery in Abu Dhabi

    SciTech Connect (OSTI)

    Muhairy, A.A. ); Farid, E.A. )

    1993-09-13

    Both onshore and offshore Abu Dhabi, horizontal wells have increased productivity three to four times more than that from vertical and deviated wells in the same reservoirs. Horizontal drilling technology was first applied in Abu Dhabi in February 1988, and through March 1993, 48 wells have been horizontally drilled. During the 5 years of horizontal drilling, the experience gained by both operating company and service company personnel has contributed to a substantial improvement in drilling rate, and hence, a reduction in drilling costs. The improvements in drilling and completions resulted from the following: The horizontal drilling and completion operations were analyzed daily, and these follow-up analyses helped optimize the planning of subsequent wells. The bits and bottom hole assemblies were continuously analyzed for optimum selections. Steerable drilling assemblies were found very effective in the upper sections of the wells. The paper describes drilling activities onshore and offshore, completion design, and the outlook for future well drilling.

  12. Horizontal-well pilot waterflood tests shallow, abandoned field

    SciTech Connect (OSTI)

    McAlpine, J.L. ); Joshi, S.D. )

    1991-08-05

    This paper reports on the suitability of using horizontal wells in a waterflood of shallow, partially depleted sands which will be tested in the Jennings field in Oklahoma. The vertical wells drilled in the Jennings field intersect several well-known formations such as Red Fork, Misner, and Bartlesville sand. Most of these formations have been produced over a number of years, and presently no wells are producing in the field. In the 1940s, 1950s, and 1960s, wells were drilled on 10-acre spacing, and the last well was plugged in 1961. The field was produced only on primary production and produced approximately 1 million bbl of oil. Because the field was not waterflooded, a large potential exists to produce from the field using secondary methods. To improve the economics for the secondary process, a combination of horizontal and vertical wells was considered.

  13. Bakken shale typifies horizontal drilling success

    SciTech Connect (OSTI)

    Leibman, P.R. )

    1990-12-01

    Given the favorable production response that has been obtained from horizontal drilling in vertical- fractured reservoirs such as the Bakken shale and, more recently, the Austin chalk, industry interest in this technology has mushroomed in the U.S. Indeed, it is difficult to find a good-sized oil company these days that is not involved in a horizontal drilling project or is giving it serious consideration. In response to growing evidence of successful field applications, the realization is dawning on the investment community that horizontal drilling represents a significant technological development with positive implications for both the exploration and production business, and the oilfield services industry.

  14. Consorcio Horizonte Asja | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search Name: Consorcio Horizonte Asja Place: Brazil Product: Brazil-based joint venture between two subsidiaries of Asja.biz developing a 4.5MW biogas plant....

  15. Productivity improvement by frontier horizontal drilling in Italy

    SciTech Connect (OSTI)

    Schenato, A.

    1995-12-31

    Italian domestic activity on horizontal wells has been specially addressed to carbonate reservoir and specifically targeted to re-entry in existing wells. The speech will focus on the specific experience matured in frontier applications in Italy, from 1989 with the short radius drain holes in Sicily, throughout world record deep water short radius in the southern part of Adriatic sea and depth world record medium radius in a HP/HT reservoir in the Po Valley. Production results will be reported as well as the achieved technological aspects.

  16. Shear horizontal surface acoustic wave microsensor for Class...

    Office of Scientific and Technical Information (OSTI)

    The rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms is critical to human health and safety. To achieve a high level of ...

  17. Shear horizontal surface acoustic wave microsensor for Class...

    Office of Scientific and Technical Information (OSTI)

    To achieve a high level of sensitivity for fluidic detection applications, we have ... Each die has four delay-line detection channels, permitting simultaneous measurement of ...

  18. 3-D laser patterning process utilizing horizontal and vertical patterning

    DOE Patents [OSTI]

    Malba, Vincent; Bernhardt, Anthony F.

    2000-01-01

    A process which vastly improves the 3-D patterning capability of laser pantography (computer controlled laser direct-write patterning). The process uses commercially available electrodeposited photoresist (EDPR) to pattern 3-D surfaces. The EDPR covers the surface of a metal layer conformally, coating the vertical as well as horizontal surfaces. A laser pantograph then patterns the EDPR, which is subsequently developed in a standard, commercially available developer, leaving patterned trench areas in the EDPR. The metal layer thereunder is now exposed in the trench areas and masked in others, and thereafter can be etched to form the desired pattern (subtractive process), or can be plated with metal (additive process), followed by a resist stripping, and removal of the remaining field metal (additive process). This improved laser pantograph process is simpler, faster, move manufacturable, and requires no micro-machining.

  19. The local heat transfer mathematical model between vibrated fluidized beds and horizontal tubes

    SciTech Connect (OSTI)

    Zhu, Xuejun; Ye, Shichao; Pan, Xiaoheng

    2008-05-15

    A dimensionless mathematical model is proposed to predict the local heat transfer coefficients between vibrated fluidized beds and immersed horizontal tubes, and the effects of the thickness of gas film and the contact time of particle packets are well considered. Experiments using the glass beads (the average diameter bar d{sub p}=1.83mm) were conducted in a two-dimensional vibrated fluidized bed (240 mm x 80 mm). The local heat transfer law between vibrated fluidized bed and horizontal tube surface has been investigated. The results show that the values of theoretical prediction are in good agreement with experimental data, so the model is able to predict the local heat transfer coefficients between vibrated fluidized beds and immersed horizontal tubes reasonably well, and the error is in range of {+-}15%. The results can provide references for future designing and researching on the vibrated fluidized beds with immersed horizontal tubes. (author)

  20. Using resistivity to assess Niobrara fracture patterns for horizontal wells

    SciTech Connect (OSTI)

    Johnson, R.A.; Bartshe, R.T. )

    1991-09-02

    This paper reports on interest in U.S. horizontal drilling which has largely focused on vertically fractured plays such as the Bakken shale and Austin chalk. The Upper Cretaceous Niobrara formation, the chronological equivalent of the Austin chalk, has recently been targeted as a candidate for horizontal drilling in the Denver basin and other areas of the Rocky Mountains. A primary key to success in such plays is to predict the occurrence and distribution of oil bearing fracture systems. Much emphasis is placed on theoretical aspects of fracture origin and prediction. Remote sensing techniques (e.g., seismic, satellite image analysis) have gained wide use in the search for fractured reservoirs. While these methods are important elements of an integrated exploration effort, they lack the benefit of direct detection of open, oil saturated fracture systems. In the areas of the Denver basin in which the Niobrara is oil prone, certain resistivity responses are indicative of the proximity of oil bearing fractures to the well bore. This provides an extremely useful technique in areas of pre-existing well control penetrating the Niobrara section. As such, the Denver basin is an ideal area due to the large number of penetrations to the Lower Cretaceous D and J sandstones that underlie the Niobrara.

  1. Method and apparatus for drilling horizontal holes in geological structures from a vertical bore

    DOE Patents [OSTI]

    Summers, David A.; Barker, Clark R.; Keith, H. Dean

    1982-01-01

    This invention is directed to a method and apparatus for drilling horizontal holes in geological strata from a vertical position. The geological structures intended to be penetrated in this fashion are coal seams, as for in situ gasification or methane drainage, or in oil-bearing strata for increasing the flow rate from a pre-existing well. Other possible uses for this device might be for use in the leaching of uranium ore from underground deposits or for introducing horizontal channels for water and steam injections.

  2. Horizontal modular dry irradiated fuel storage system

    DOE Patents [OSTI]

    Fischer, Larry E.; McInnes, Ian D.; Massey, John V.

    1988-01-01

    A horizontal, modular, dry, irradiated fuel storage system (10) includes a thin-walled canister (12) for containing irradiated fuel assemblies (20), which canister (12) can be positioned in a transfer cask (14) and transported in a horizontal manner from a fuel storage pool (18), to an intermediate-term storage facility. The storage system (10) includes a plurality of dry storage modules (26) which accept the canister (12) from the transfer cask (14) and provide for appropriate shielding about the canister (12). Each module (26) also provides for air cooling of the canister (12) to remove the decay heat of the irradiated fuel assemblies (20). The modules (26) can be interlocked so that each module (26) gains additional shielding from the next adjacent module (26). Hydraulic rams (30) are provided for inserting and removing the canisters (12) from the modules (26).

  3. Waterflooding in a system of horizontal wells

    SciTech Connect (OSTI)

    Bedrikovetsky, P.G.; Magarshak, T.O.; Shapiro, A.A.

    1995-10-01

    An approximate analytical method for the simulation of waterflooding in a system of horizontal wells is developed. The method is based on an advanced stream-line concept. The essence of this new method is the exact solution for the 3D two-phase flow problem in the system of coordinates linked with the stream lines under the only assumption of the immobility of stream lines. A software based on this approach was developed for IBM-compatible PC. It allows one multivariant comparative studies of immiscible displacement in systems of horizontal, vertical and slant wells. The simulator has been used in order to optimize geometrical parameters of a regular well system and to predict recovery in conditions of Prirazlomnoye offshore oil field.

  4. Horizontal subsea trees allow frequent deepwater workovers

    SciTech Connect (OSTI)

    Krenek, M.; Hall, G.; Sheng, W.Z.

    1995-05-01

    Horizontal subsea wellheads have found application in the Liuhua oil field in the South China Sea. These trees allow installation and retrieval of downhole equipment through the tree without having to disturb the tree or its external connections to flow lines, service lines, or control umbilicals. This access to the well is important because the Liuhua wells will be produced with electrical submersible pumps (ESPs), which may have relatively short intervals between maintenance, leading to frequent well work. The wells will be completed subsea in about 300 m of water. The large bore, horizontal trees allow all downhole equipment to be pulled without removal of the subsea tree. This wellhead configuration also provides well control and vertical access to downhole equipment through a conventional marine drilling riser and subsea blowout preventer (BOP), eliminating the need for costly specialized completion risers. Another benefit of the horizontal tree is its extremely compact profile with a low number of valves for well control. Valve size and spacing are decoupled from the size and bore spacing of the tubing hanger. The tree`s low profile geometry reduces costs of manufacturing the tree and framework and optimize load transfer to the wellhead.

  5. Visual inspections of N Reactor horizontal control rod channels

    SciTech Connect (OSTI)

    Woodruff, E.M.

    1990-07-01

    This document describes the examination of thirteen horizontal control rod channels during the N Reactor Surveillance Program campaigns of 1987 and 1988. Traverses with miniature video cameras recorded the condition and relative positions of graphite blocks that form channel walls. The major conclusion confirms that no conditions exist that would prevent rod insertion. Where encroachment of broken filler block keys into the channel indicated a potential for rod motion impairment their removal by displacement into gaps between blocks was performed as preventive maintenance. In some locations a chisel was used in clearing keys lodged in gaps between tube blocks. Other observations include counts of safety balls observed in channels, breaks in tube blocks and Tee-bars and separations at Tee-bar junctions that results from axial graphite contraction. 15 refs., 18 figs., 6 tabs.

  6. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Praeg, W.F.

    1995-01-31

    An apparatus is disclosed for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers. 19 figs.

  7. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Pareg, Walter F.

    1990-01-01

    An apparatus for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers.

  8. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Praeg, Walter F.

    1995-01-01

    An apparatus for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers.

  9. YPF uses horizontal reentry to aid thin bed production

    SciTech Connect (OSTI)

    Acosta, M.R.; Leiro, F.A.; Sesano, G.S.; Hill, D.

    1997-01-01

    Reentry and horizontal drilling/completion techniques have proven themselves useful in exploiting thin beds. A pilot horizontal reentry contracted by Yacimiento Petroliferos Fiscales (YPF) for a marginal well in its Lomita Sur field resulted in decreased water coning and production rates four times greater than expected. Further horizontal reentries in this thin-bed field are planned.

  10. IDENTIFYING BLUE HORIZONTAL BRANCH STARS USING THE z FILTER

    SciTech Connect (OSTI)

    Vickers, John J.; Grebel, Eva K.; Huxor, Avon P.

    2012-04-15

    In this paper we present a new method for selecting blue horizontal branch (BHB) candidates based on color-color photometry. We make use of the Sloan Digital Sky Survey z band as a surface gravity indicator and show its value for selecting BHB stars from quasars, white dwarfs, and main-sequence A-type stars. Using the g, r, i, and z bands, we demonstrate that extraction accuracies on a par with more traditional u, g, and r photometric selection methods may be achieved. We also show that the completeness necessary to probe major Galactic structure may be maintained. Our new method allows us to efficiently select BHB stars from photometric sky surveys that do not include a u-band filter such as the Panoramic Survey Telescope and Rapid Response System.

  11. Reservoir visualization for geosteering of horizontal wells

    SciTech Connect (OSTI)

    Bryant, I.D.; Baygun, B.; Frass, M.; Casco, R.

    1996-08-01

    Horizontal infill wells in the Lower Lagunillas reservoir of Bloque IV, Lake Maracaibo are being drilled in thin, oil-bearing zones that have been bypassed by gas. Steering the horizontal sections of these wells requires high resolution reservoir models that can be updated during drilling. An example from well VLD-1152 serves to illustrate how these models are generated and used. Resistivity images collected by wireline and logging-while-drilling (LWD) tools in the pilot well formed the basis of prejob, high resolution modeling of the formation properties. 3-D seismic data and data from an offset vertical seismic profile collected in the pilot well provided the structural model. During drilling information from cuttings and LWD tools was used to continuously update these models. After the well had been drilled, analysis of LWD resistivity images provided a detailed model of the relationship between the well trajectory and the dip of the formation. This information is used to improve interpretation of the LWD logs to provide a petrophysical evaluation of the well.

  12. Planning and well evaluations improve horizontal drilling results

    SciTech Connect (OSTI)

    Hovda, S. )

    1994-10-31

    A systematic approach, including better planning and performance evaluation, improved the horizontal drilling efficiency of a multiwell program in the Oseberg field in the North Sea. The horizontal drilling program in the Oseberg field is one of the most comprehensive horizontal drilling programs in the North Sea. The present horizontal drilling program consists of 14 oil producers from the C platform and 18 from the B platform. Total horizontal displacement varies from around 1,500 m to 5,540 m. The lengths of the horizontal section vary from 600 m to 1,500 m. The paper discusses will planning, directional drilling, drilling problems with coal seams and orientation, true vertical depth control, horizontal liner cement, spacer system, cement slurries, job execution, and results.

  13. Field Demonstration of Horizontal Infill Drilling Using Cost-effective Integrated Reservoir Modeling--Mississippian Carbonates, Central Kansas

    SciTech Connect (OSTI)

    Saibal Bhattacharya

    2005-08-31

    Mississippian carbonate reservoirs have produced in excess of 1 billion barrels of oil in Kansas accounting for over 16% of the state's production. With declining production from other age reservoirs, the contribution of Mississippian reservoirs to Kansas's oil production has risen to 43% as of 2004. However, solution-enhanced features such as vertical shale intervals extending from the karst erosional surface at the top introduce complexities/compartmentalizations in Mississippian carbonate reservoirs. Coupled with this, strong water drives charge many of these reservoirs resulting in limited drainage from vertical wells due to high water cuts after an initial period of low water production. Moreover, most of these fields are operated by small independent operators without access to the knowledge bank of modern research in field characterization and exploitation/development practices. Thus, despite increasing importance of Mississippian fields to Kansas production, these fields are beset with low recovery factors and high abandonment rates leaving significant resources in the ground. Worldwide, horizontal infill wells have been successful in draining compartmentalized reservoirs with limited pressure depletion. The intent of this project was to demonstrate the application of horizontal wells to successfully exploit the remaining potential in mature Mississippian fields of the mid-continent. However, it is of critical importance that for horizontal wells to be economically successful, they must be selectively targeted. This project demonstrated the application of initial and secondary screening methods, based on publicly available data, to quickly shortlist fields in a target area for detailed studies to evaluate their potential to infill horizontal well applications. Advanced decline curve analyses were used to estimate missing well-level production data and to verify if the well produced under unchanging bottom-hole conditions--two commonly occurring data

  14. Sustainability in Existing Federal Buildings

    Broader source: Energy.gov [DOE]

    For meeting federal sustainability requirements, agencies can use evaluation methods, such as benchmarking and energy audits, and planning to make existing buildings energy efficient. Agencies can follow these steps to comply with energy reduction requirements.

  15. Passive magnetic bearing for a horizontal shaft

    DOE Patents [OSTI]

    Post, Richard F.

    2003-12-02

    A passive magnetic bearing is composed of a levitation element and a restorative element. The levitation element is composed of a pair of stationary arcuate ferromagnetic segments located within an annular radial-field magnet array. The magnet array is attached to the inner circumference of a hollow shaft end. An attractive force between the arcuate segments and the magnet array acts vertically to levitate the shaft, and also in a horizontal transverse direction to center the shaft. The restorative element is comprised of an annular Halbach array of magnets and a stationary annular circuit array located within the Halbach array. The Halbach array is attached to the inner circumference of the hollow shaft end. A repulsive force between the Halbach array and the circuit array increases inversely to the radial space between them, and thus acts to restore the shaft to its equilibrium axis of rotation when it is displaced therefrom.

  16. MHK ISDB/Instruments/TRDI Workhorse Horizontal ADCP | Open Energy...

    Open Energy Info (EERE)

    Horizontal ADCP < MHK ISDB Jump to: navigation, search MHK Instrumentation & Sensor Database Menu Home Search Add Instrument Add Sensor Add Company Community FAQ Help Under...

  17. Zero Discharge Water Management for Horizontal Shale Gas Well...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of...

  18. Horizontal well replaces hydraulic fracturing in North Sea gas well

    SciTech Connect (OSTI)

    Reynolds, D.A.; Seymour, K.P. )

    1991-11-25

    This paper reports on excessive water production from hydraulically fractured wells in a poor quality reservoir in the North SEa which prompted the drilling of a horizontal well. Gas production from the horizontal well reached six times that of the offset vertical wells, and no water production occurred. This horizontal well proved commercial the western section of the Anglia field. Horizontal drilling in the North SEa is as an effective technology to enhance hydrocarbon recovery from reservoirs that previously had proven uncommercial with other standard techniques. It is viable for the development of marginal reservoirs, particularly where conditions preclude stimulation from hydraulic fracturing.

  19. MHK Technologies/Horizontal Axis Logarithmic Spiral Turbine ...

    Open Energy Info (EERE)

    Horizontal Axis Logarithmic Spiral Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Golden...

  20. Zero Discharge Water Management for Horizontal Shale Gas Well Development

    SciTech Connect (OSTI)

    Paul Ziemkiewicz; Jennifer Hause; Raymond Lovett; David Locke Harry Johnson; Doug Patchen

    2012-03-31

    Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of the Appalachian Basin. The most-efficient technique for stimulating Marcellus gas production involves hydraulic fracturing (injection of a water-based fluid and sand mixture) along a horizontal well bore to create a series of hydraulic fractures in the Marcellus. The hydraulic fractures free the shale-trapped gas, allowing it to flow to the well bore where it is conveyed to pipelines for transport and distribution. The hydraulic fracturing process has two significant effects on the local environment. First, water withdrawals from local sources compete with the water requirements of ecosystems, domestic and recreational users, and/or agricultural and industrial uses. Second, when the injection phase is over, 10 to 30% of the injected water returns to the surface. This water consists of flowback, which occurs between the completion of fracturing and gas production, and produced water, which occurs during gas production. Collectively referred to as returned frac water (RFW), it is highly saline with varying amounts of organic contamination. It can be disposed of, either by injection into an approved underground injection well, or treated to remove contaminants so that the water meets the requirements of either surface release or recycle use. Depending on the characteristics of the RFW and the availability of satisfactory disposal alternatives, disposal can impose serious costs to the operator. In any case, large quantities of water must be transported to and from well locations, contributing to wear and tear on local roadways that were not designed to handle the heavy loads and increased traffic. The search for a way to mitigate the situation and improve the overall efficiency of shale gas production suggested a treatment method that would allow RFW to be used as make

  1. Yaw dynamics of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Hansen, A.C. )

    1992-05-01

    Designers of a horizontal axis wind turbine yaw mechanism are faced with a difficult decision. They know that if they elect to use a yaw- controlled rotor then the system will suffer increased initial cost and increased inherent maintenance and reliability problems. On the other hand, if they elect to allow the rotor to freely yaw they known they will have to account for unknown and random, though bounded, yaw rates. They will have a higher-risk design to trade-off against the potential for cost savings and reliability improvement. The risk of a yaw-free system could be minimized if methods were available for analyzing and understanding yaw behavior. The complexity of yaw behavior has, until recently, discouraged engineers from developing a complete yaw analysis method. The objectives of this work are to (1) provide a fundamental understanding of free-yaw mechanics and the design concepts most effective at eliminating yaw problems, and (2) provide tested design tools and guidelines for use by free-yaw wind systems manufacturers. The emphasis is on developing practical and sufficiently accurate design methods.

  2. Low-drag electrical-contact arrangement for maintaining continuity between horizontally movable members

    DOE Patents [OSTI]

    Brown, R.J.; Gerth, H.L.; Robinson, S.C.

    1981-01-23

    This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

  3. Low-drag electrical contact arrangement for maintaining continuity between horizontally movable members

    DOE Patents [OSTI]

    Brown, R. Jack; Gerth, Howard L.; Robinson, Samuel C.

    1982-01-01

    This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

  4. Horizontal underbalanced drilling of gas wells with coiled tubing

    SciTech Connect (OSTI)

    Cox, R.J.; Li, J.; Lupick, G.S.

    1999-03-01

    Coiled tubing drilling technology is gaining popularity and momentum as a significant and reliable method of drilling horizontal underbalanced wells. It is quickly moving into new frontiers. To this point, most efforts in the Western Canadian Basin have been focused towards sweet oil reservoirs in the 900--1300 m true vertical depth (TVD) range, however there is an ever-increasing interest in deeper and gas-producing formations. Significant design challenges on both conventional and coiled tubing drilling operations are imposed when attempting to drill these formations underbalanced. Coiled tubing is an ideal technology for underbalanced drilling due to its absence of drillstring connections resulting in continuous underbalanced capabilities. This also makes it suitable for sour well drilling and live well intervention without the risk of surface releases of reservoir gas. Through the use of pressure deployment procedures it is possible to complete the drilling operation without need to kill the well, thereby maintaining underbalanced conditions right through to the production phase. The use of coiled tubing also provides a means for continuous wireline communication with downhole steering, logging and pressure recording devices.

  5. Horizontal oil well applications and oil recovery assessment. Volume 1: Success of horizontal well technology, Final report

    SciTech Connect (OSTI)

    Deskins, W.G.; McDonald, W.J.; Knoll, R.G.; Springer, S.J.

    1995-03-01

    Horizontal technology has been applied in over 110 formations in the USA. Volume I of this study addresses the overall success of horizontal technology, especially in less-publicized formations, i.e., other than the Austin Chalk, Bakken, and Niobrara. Operators in the USA. and Canada were surveyed on a formation-by-formation basis by means of a questionnaire. Response data were received describing horizontal well projects in 58 formations in the USA. and 88 in Canada. Operators responses were analyzed for trends in technical and economic success based on lithology (clastics and carbonates) and resource type (light oil, heavy oil, and gas). The potential impact of horizontal technology on reserves was also estimated. A forecast of horizontal drilling activity over the next decade was developed.

  6. Geologic aspects of horizontal drilling in self-sourcing reservoirs

    SciTech Connect (OSTI)

    Illich, H.A. )

    1991-03-01

    Horizontal drilling techniques provide a way to exploit hydrocarbon reserves that are either noneconomic or only marginally economic using vertical drilling techniques. A significant fraction of these reserves is contained in reservoirs that are self-sourcing or in reservoirs that are closely associated with their resources. Most formations drilled as horizontal targets are self-sourcing. The Austin Chalk, Niobrara, Mesaverde, and Bakken are examples of horizontally drilled, self-sourcing reservoir systems. In formations like the Bakken or Austin Chalk, the close relationship between reservoir and source makes risks associated with migration and accumulation less important. Reservoirs of this kind can contain oil or gas and often have little or no associated water. They can be matrix-dominated reservoirs, dual-porosity reservoirs (Mesaverde), or fractured reservoirs (Austin Chalk, Bakken, and Niobrara). Fractured, self-sourcing reservoirs also can possess matrix characteristics that contribute increased recovery efficiency. Most reservoirs drilled horizontally possess matrix characteristics that contribute increased recovery efficiency. Most reservoirs drilled horizontally possess highly heterogeneous reservoir systems. Characterization of the style of reservoir heterogeneity in self-sourcing systems is important if the favorable properties of horizontally oriented bore holes are to be realized. Production data and rock mechanics considerations are important in horizontal drilling ventures. Examples of the use of these data for the purpose of defining reservoir characteristics are discussed. Knowledge of lateral changes in reservoir properties is essential if we are to recover known reserves efficiently.

  7. Determination of Elastic Twist in Horizontal Axis Wind Turbines (HAWTs)

    SciTech Connect (OSTI)

    Stoddard, F.; Nelson, V.; Starcher, K.; Andrews, B.

    2006-06-01

    This report presents the results of a project at the Alternative Energy Institute (AEI) which measured and calculated the elastic twist of three representative composite horizontal-axis blades: Carter 300, Gougeon ESI 54, and UTRC 8 kW.

  8. A Model For The Transient Temperature Effects Of Horizontal Fluid...

    Open Energy Info (EERE)

    Transient Temperature Effects Of Horizontal Fluid Flow In Geothermal Systems Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Model For The...

  9. Environmental Measurement-While-Drilling System and Horizontal Directional Drilling Technology Demonstration, Hanford Site

    SciTech Connect (OSTI)

    Williams, C.V.; Lockwood, G.J.; Normann, R.A.; Myers, D.A.; Gardner, M.G.; Williamson, T.; Huffman, J.

    1999-06-01

    The Environmental Measurement-While-Drilling (EMWD) system and Horizontal Directional Drilling (HDD) were successfully demonstrated at the Mock Tank Leak Simulation Site and the Drilling Technology Test Site, Hanford, Washington. The use of directional drilling offers an alternative to vertical drilling site characterization. Directional drilling can develop a borehole under a structure, such as a waste tank, from an angled entry and leveling off to horizontal at the desired depth. The EMWD system represents an innovative blend of new and existing technology that provides the capability of producing real-time environmental and drill bit data during drilling operations. The technology demonstration consisted of the development of one borehole under a mock waste tank at a depth of {approximately} {minus}8 m ({minus}27 ft.), following a predetermined drill path, tracking the drill path to within a radius of {approximately}1.5 m (5 ft.), and monitoring for zones of radiological activity using the EMWD system. The purpose of the second borehole was to demonstrate the capability of drilling to a depth of {approximately} {minus}21 m ({minus}70 ft.), the depth needed to obtain access under the Hanford waste tanks, and continue drilling horizontally. This report presents information on the HDD and EMWD technologies, demonstration design, results of the demonstrations, and lessons learned.

  10. Horizontal slim-hole drilling with coiled tubing; An operator's experience

    SciTech Connect (OSTI)

    Ramos, A.B. Jr.; Faahel, R.A.; Chaffin, M.G.; Pulis, K.H. )

    1992-10-01

    What is believed to be the first horizontal well drilled with directionally controlled coiled tubing recently was completed in the Austin Chalk formation. an existing well was sidetracked out of 4 1/2-in. casing with a conventional whipstock. an average build rate of 15[degrees]/100 ft was achieved in the curve, and a 1,458-ft vertical section was drilled with 2-in. coiled tubing, downhole mud motors, wireline steering tools, a mechanical downhole orienting tool, and 3 7/8-in. bits. This paper discusses the orienting and directional tools and techniques developed during this operation. It also describes improvements made for the second well.

  11. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Quarterly report, October 1 - December 31, 1996

    SciTech Connect (OSTI)

    Wood, J.R.

    1997-01-01

    The principal objective of this project is to demonstrate the feasibility and economic success of producing oil from abandoned or nearly abandoned fields in the Dundee Formation of Central Michigan using horizontal drilling technology. A site for a horizontal well was selected in Crystal Field, a nearly-abandoned Dundee oil field in Michigan. This field had produced over 8 million barrels of oil, mostly in the 1930`s and 1940`s. At the height of development, Crystal Field produced from 193 wells, but by 1995, only seven producing wells remained, each producing less than 10 bbls/day. A horizontal well was drilled as a field demonstration pilot, funded through this DOE project, and was successful. It has produced over 37,000 bbls of oil as of December 31, 1996 at sustained rate of {approximately}100 bbls/day. At a nominal wellhead price of $20/bbl, this well has made about $750,000 and is still going strong. Two additional horizontal wells have just been completed and are on test. Core and logs from the Dundee interval were recovered from a vertical borehole at the same surface location. The horizontal well was brought on production at a rate of 100 bbls/day and is probably capable of producing at a higher rate. The addition of several horizontal wells, similar to the demonstration well, will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. The presence of untapped oil in this Dundee field was dramatically demonstrated and the favorable economics were made clearly evident. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels. Horizontal drilling will likely revolutionize the development of old carbonate fields such as those in the Dundee of Michigan.

  12. Drilling Sideways - A Review of Horizontal Well Technology and Its Domestic Application

    Reports and Publications (EIA)

    1993-01-01

    Focuses primarily on domestic horizontal drilling applications, past and present, and on salient aspects of current and near-future horizontal drilling and completion technology.

  13. Building America Expert Meeting: Transforming Existing Buildings...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transforming Existing Buildings through New Media--An Idea Exchange Building America Expert Meeting: Transforming Existing Buildings through New Media--An Idea Exchange This report ...

  14. Enhanced Oil Recovery by Horizontal Waterflooding

    SciTech Connect (OSTI)

    Scott Robinowitz; Dwight Dauben; June Schmeling

    2005-09-05

    Solar energy has become a major alternative for supplying a substantial fraction of the nation's future energy needs. The U.S. Department of Energy (DOE) supports activities ranging from the demonstration of existing technology to research on future possibilities. At Lawrence Berkeley Laboratory (LBL), projects are in progress that span a wide range of activities, with the emphasis on research to extend the scientific basis for solar energy applications, and on preliminary development of new approaches to solar energy conversion. To assess various solar applications, it is important to quantify the solar resource. Special instruments have been developed and are now in use to measure both direct solar radiation and circum-solar radiation, i.e., the radiation from near the sun resulting from the scattering of sunlight by small particles in the atmosphere. These measurements serve to predict the performance of solar designs that use focusing collectors employing mirrors or lenses to concentrate the sunlight. Efforts have continued at a low level to assist DOE in demonstrating existing solar technology by providing the San Francisco Operations Office (SAN) with technical support for its management of commercial-building solar demonstration projects. Also, a hot water and space-heating system has been installed on an LBL building as part of the DOE facilities Solar Demonstration Program. LBL continues to provide support for the DOE Appropriate Energy Technology grants program. Evaluations are made of the program's effectiveness by, for example, estimating the resulting potential energy savings. LBL also documents innovative features and improvements in economic feasibility as compared to existing conventional systems or applications. In the near future, we expect that LBL research will have a substantial impact in the areas of solar heating and cooling. Conventional and new types of high-performance absorption air conditioners are being developed that are air-cooled and

  15. Horizontal electromagnetic casting of thin metal sheets

    DOE Patents [OSTI]

    Hull, John R.; Lari, Robert J.; Praeg, Walter F.; Turner, Larry R.

    1987-01-01

    Thin metal sheets are cast by magnetically suspending molten metal deposited within a ferromagnetic yoke and between AC conducting coils and linearly displacing the magnetically levitated liquid metal while it is being cooled to form a solid metal sheet. Magnetic flux increases as the molten metal sheet moves downward and decreases as the molten metal sheet moves upward to stabilize the sheet and maintain it in equilibrium as it is linearly displaced and solidified by cooling gases. A conducting shield is electrically coupled to the molten metal sheet by means of either metal sheet engaging rollers or brushes on the solidified metal, and by means of an electrode in the vessel containing the molten metal thereby providing a return path for the eddy currents induced in the metal sheet by the AC coil generated magnetic flux. Variation in the geometry of the conducting shield allows the magnetic flux between the metal sheet and the conducting shield to be varied and the thickness in surface quality of the metal sheet to be controlled. Side guards provide lateral containment for the molten metal sheet and stabilize and shape the magnetic field while a leader sheet having electromagnetic characteristics similar to those of the metal sheet is used to start the casting process and precedes the molten metal sheet through the magnet and forms a continuous sheet therewith. The magnet may be either U-shaped with a single racetrack coil or may be rectangular with a pair of facing bedstead coils.

  16. Horizontal electromagnetic casting of thin metal sheets

    DOE Patents [OSTI]

    Hull, John R.; Lari, Robert J.; Praeg, Walter F.; Turner, Larry R.

    1988-01-01

    Thin metal sheets are cast by magnetically suspending molten metal deposited within a ferromagnetic yoke and between AC conducting coils and linearly displacing the magnetically levitated liquid metal while it is being cooled to form a solid metal sheet. Magnetic flux increases as the molten metal sheet moves downward and decreases as the molten metal sheet moves upward to stabilize the sheet and maintain it in equilibrium as it is linearly displaced and solidified by cooling gases. A conducting shield is electrically coupled to the molten metal sheet by means of either metal sheet engaging rollers or brushes on the solidified metal, and by means of an electrode in the vessel containing the molten metal thereby providing a return path for the eddy currents induced in the metal sheet by the AC coil generated magnetic flux. Variation in the geometry of the conducting shield allows the magnetic flux between the metal sheet and the conducting shield to be varied and the thickness in surface quality of the metal sheet to be controlled. Side guards provide lateral containment for the molten metal sheet and stabilize and shape the magnetic field while a leader sheet having electromagnetic characteristics similar to those of the metal sheet is used to start the casting process and precedes the molten metal sheet through the magnet and forms a continuous sheet therewith. The magnet may be either U-shaped with a single racetrack coil or may be rectangular with a pair of facing bedstead coils.

  17. Automated Tracing of Horizontal Neuron Processes During Retinal Development

    SciTech Connect (OSTI)

    Kerekes, Ryan A [ORNL; Martins, Rodrigo [St. Jude Children's Research Hospital; Dyer, Michael A [ORNL; Gleason, Shaun Scott [ORNL; Karakaya, Mahmut [ORNL; Davis, Denise [St. Jude Children's Research Hospital

    2011-01-01

    In the developing mammalian retina, horizontal neurons undergo a dramatic reorganization oftheir processes shortly after they migrate to their appropriate laminar position. This is an importantprocess because it is now understood that the apical processes are important for establishing theregular mosaic of horizontal cells in the retina and proper reorganization during lamination isrequired for synaptogenesis with photoreceptors and bipolar neurons. However, this process isdifficult to study because the analysis of horizontal neuron anatomy is labor intensive and time-consuming. In this paper, we present a computational method for automatically tracing the three-dimensional (3-D) dendritic structure of horizontal retinal neurons in two-photon laser scanningmicroscope (TPLSM) imagery. Our method is based on 3-D skeletonization and is thus able topreserve the complex structure of the dendritic arbor of these cells. We demonstrate theeffectiveness of our approach by comparing our tracing results against two sets of semi-automatedtraces over a set of 10 horizontal neurons ranging in age from P1 to P5. We observe an averageagreement level of 81% between our automated trace and the manual traces. This automatedmethod will serve as an important starting point for further refinement and optimization.

  18. Modeling of horizontal well and lifting mechanisms to improve ultimate recovery in a depleted field in Lake Maracaibo, Venezuela

    SciTech Connect (OSTI)

    Saputelli, L.; Mata, T.; Jimenez, Z.

    1995-12-31

    Recovery of the remaining reserve of millions of oil barrels is inhibited by depleted reservoir pressures and existing exploitation policies in Lower Lagunillas Reservoir in Lake Maracaibo, Venezuela. Numerical simulation results indicated that proper production and reservoir management policies such as, controlled drawdown, producing wells at rates below the critical rates, low gas-oil-ratio production will promote efficient gravity segregation process, and subsequent optimum final recovery. Combination of infill horizontal wells and adequate lifting mechanisms yielded the recovery of additional reserves.

  19. Coiled tubing buckling implication in drilling and completing horizontal wells

    SciTech Connect (OSTI)

    Wu, J.; Juvkam-Wold, H.C.

    1995-03-01

    This paper discusses coiled tubing buckling and load transmission when drilling and completing horizontal wells. Comprehensive analyses and new equations are presented to predict buckling of coiled tubing, slack-off weight transmission, actual bit weight or packer load, and maximum horizontal length. Coiled tubing lock-up and yield due to buckling are also discussed. These equations can also be used for other coiled tubing operations, such as coiled tubing workover, coiled tubing well stimulation, and even for conventional joint-connected drill strings. Calculations based on the equations presented are also compared with the previous literature.

  20. Further discussion of productivity of a horizontal well

    SciTech Connect (OSTI)

    Suprunowicz, R.; Butler, R.M. )

    1993-05-01

    This paper is presented as a comment to an earlier paper entitled Productivity of a Horizontal Well' (Nov. 1992, SPE Reservoir Engineering). These authors attempt to refute the original authors conclusions regarding pressure gradients and boundary conditions in horizontal wells. These authors state that the pressure gradient proposed in the original paper which was parallel to the well bore and was required to maintain constant-flux distribution, are large and unrealistic. They also discuss the use of steady-state and pseudo-steady-state flow models and the interpretation of model results to help predict productivity.

  1. Horizontal drilling the Bakken Formation, Williston basin: A new approach

    SciTech Connect (OSTI)

    Lefever, J.A. )

    1990-05-01

    Horizontal drilling is an attractive new approach to exploration and development of the Mississippian/Devonian Bakken Formation in the southwestern part of North Dakota. This drilling technique increases the probability of success, the profit potential, the effective drainage area maximizing recoverable reserves, and the productivity by encountering more natural occurring fractures. The target formation, the Mississippian/Devonian Bakken, consists of three members in an overlapping relationship, a lower organic-rich black shale, a middle siltstone/limestone, and an upper organic-rich black shale. It attains a maximum thickness of 145 ft and thins to a feather edge along its depositional limit. Considered to be a major source rock for the Williston basin, the Bakken is usually overpressured where productive. Overpressuring is attributed to intense hydrocarbon generation. Reservoir properties are poor with core fluid porosities being generally 5% or less and permeabilities ranging from 0.1 to 0.2 md. The presence of natural fractures in the shale are necessary for production. Two types of fractures are associated with Bakken reservoirs: large vertical fractures (of tectonic origin) and microfractures (probably related to hydrocarbon generation). An economic comparison between horizontal and vertical wells show that well completion costs are approximately two times higher (average costs; $1,500,000 for a horizontal to $850,000 for a vertical) with average payout for horizontal wells projected to occur in half the time (1.5 yr instead of 3.4 yr). Projected production and reserves are considered to be 2 to 4 times greater from a horizontal well.

  2. Completion Design Considerations for a Horizontal Enhanced Geothermal System

    SciTech Connect (OSTI)

    Olson, Jeffrey; Eustes, Alfred; Fleckenstein, William; Eker, Erdinc; Baker, Reed; Augustine, Chad

    2015-09-02

    The petroleum industry has had considerable success in recent decades in developing unconventional shale plays using horizontal drilling and multi-zonal isolation and stimulation techniques to fracture tight formations to enable the commercial production of oil and gas. Similar well completions could be used in Enhanced Geothermal Systems (EGS) to create multiple fractures from horizontal wells. This study assesses whether well completion techniques used in the unconventional shale industry to create multi-stage fractures can be applied to an enhanced geothermal system, with a focus on the completion of the EGS injection well. This study assumes an Enhanced Geothermal System (EGS) consisting of a central horizontal injection well flanked on each side by horizontal production wells, connected to the injection well by multiple fractures. The focus is on the design and completion of the horizontal well. For the purpose of developing design criteria, a reservoir temperature of 200 degrees C (392 degrees F) and an injection well flow rate of 87,000 barrels per day (160 kg/s), corresponding to production well flow rates of 43,500 barrels per day (80 kg/s) is assumed. The analysis found that 9-5/8 inches 53.5 pounds per foot (ppf) P110 casing string with premium connections meets all design criteria for the horizontal section of injection well. A P110 grade is fairly common and is often used in horizontal sections of shale development wells in petroleum operations. Next, several zonal isolation systems commonly used in the shale gas industry were evaluated. Three techniques were evaluated -- a 'plug and perf' design, a 'sand and perf' design, and a 'packer and port' design. A plug and perf system utilizes a cemented casing throughout the length of the injector wellbore. The sand and perf system is identical to the plug and perf system, but replaces packers with sand placed in the casing after stimulation to screen out the stimulated perforated zones and provide zonal

  3. Report on full-scale horizontal cable tray fire tests, FY 1988

    SciTech Connect (OSTI)

    Riches, W.M.

    1988-09-01

    In recent years, there has been much discussion throughout industry and various governmental and fire protection agencies relative to the flammability and fire propagation characteristics of electrical cables in open cable trays. It has been acknowledged that under actual fire conditions, in the presence of other combustibles, electrical cable insulation can contribute to combustible fire loading and toxicity of smoke generation. Considerable research has been conducted on vertical cable tray fire propagation, mostly under small scale laboratory conditions. In July 1987, the Fermi National Accelerator Laboratory initiated a program of full scale, horizontal cable tray fire tests, in the absence of other building combustible loading, to determine the flammability and rate of horizontal fire propagation in cable tray configurations and cable mixes typical of those existing in underground tunnel enclosures and support buildings at the Laboratory. The series of tests addressed the effects of ventilation rates and cable tray fill, fire fighting techniques, and effectiveness and value of automatic sprinklers, smoke detection and cable coating fire barriers in detecting, controlling or extinguishing a cable tray fire. This report includes a description of the series of fire tests completed in June 1988, as well as conclusions reached from the test results.

  4. Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques

    SciTech Connect (OSTI)

    Wray, Laura L.; Eby, David E.; Chidsey, Jr., Thomas C.

    2002-07-24

    This report covers research activities for the second half of the second project year (October 6, 2001, through April 5, 2002). This work includes description and analysis of cores, correlation of geophysical well logs, reservoir mapping, petrographic description of thin sections, cross plotting of permeability and porosity data, and development of horizontal drilling strategies for the Little Ute and Sleeping Ute fields in Montezuma County, Colorado. Geological characterization on a local scale focused on reservoir heterogeneity, quality, and lateral continuity, as well as possible compartmentalization, within these fields. This study utilizes representative core, geophysical logs, and thin sections to characterize and grade each field's potential for drilling horizontal laterals from existing development wells.

  5. Laminar mixed convection in a horizontal eccentric annulus

    SciTech Connect (OSTI)

    Choudhury, D. ); Karki, K. )

    1992-01-01

    Laminar fluid flow and heat transfer phenomena in cylindrical annuli are encountered in various applications. The purpose of this paper is to present a numerical study of laminar mixed convection in horizontal eccentric annuli. Axial flow and heat transfer in a horizontal cylindrical annulus can be influenced by eccentricity of the inner cylinder and the presence of buoyancy forces. A numerical study is presented for the combined forced and free convection for the fully developed flow and heat transfer to eccentric annuli of different eccentricities and radius ratios. The flow field is characterized by large cross-stream secondary currents and significant flow distortion. The Nusselt number increases significantly with the Rayleigh number; the corresponding increase in the friction factor is relatively small. The eccentricity introduces additional nonuniformity of the flow and temperature fields.

  6. Potential Hydroelectric Development at Existing Federal Facilities...

    Open Energy Info (EERE)

    Potential Hydroelectric Development at Existing Federal Facilities Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Potential Hydroelectric Development at...

  7. Reciprocal Recognition of Existing Personnel Security Clearances

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2006-07-20

    Provides direction for implementing actions required by the Office of Management and Budget memorandum, Reciprocal Recognition of Existing Personnel Security Clearances.

  8. Existing Commercial Reference Buildings Constructed Before 1980...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Existing Commercial Reference Buildings Constructed Before 1980 The files on this page ... These U.S. Department of Energy (DOE) reference buildings are complete descriptions for ...

  9. Commercial Energy Efficiency Rebate for Existing Buildings

    Broader source: Energy.gov [DOE]

    Business customers retrofitting existing buildings through measures not covered under the standard incentive program can still receive financial assistance from Energy Trust through the custom...

  10. Overview of Existing Wind Energy Ordinances

    Broader source: Energy.gov [DOE]

    The purpose of this report is to educate and engage state and local governments, as well as policymakers, about existing large wind energy ordinances.

  11. Horizontal Pretreatment Reactor System (Poster), NREL (National Renewable Energy Laboratory)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Diff erent pretreatment chemistry/ residence time combinations are possible using these multiple horizontal-tube reactors * Each tube is indirectly and directly steam heated to temperatures of 150 0 C to 210 0 C * Residence time is varied by changing the speed of the auger that moves the biomass through each tube reactor * Tubes are used individually or in combination to achieve diff erent pretreatment residence times * Smaller tubes made from Hastelloy, an acid-resistant material, are used with

  12. Natural convection heat transfer within horizontal spent nuclear fuel assemblies

    SciTech Connect (OSTI)

    Canaan, R.E.

    1995-12-01

    Natural convection heat transfer is experimentally investigated in an enclosed horizontal rod bundle, which characterizes a spent nuclear fuel assembly during dry storage and/or transport conditions. The basic test section consists of a square array of sixty-four stainless steel tubular heaters enclosed within a water-cooled rectangular copper heat exchanger. The heaters are supplied with a uniform power generation per unit length while the surrounding enclosure is maintained at a uniform temperature. The test section resides within a vacuum/pressure chamber in order to subject the assembly to a range of pressure statepoints and various backfill gases. The objective of this experimental study is to obtain convection correlations which can be used in order to easily incorporate convective effects into analytical models of horizontal spent fuel systems, and also to investigate the physical nature of natural convection in enclosed horizontal rod bundles in general. The resulting data consist of: (1) measured temperatures within the assembly as a function of power, pressure, and backfill gas; (2) the relative radiative contribution for the range of observed temperatures; (3) correlations of convective Nusselt number and Rayleigh number for the rod bundle as a whole; and (4) correlations of convective Nusselt number as a function of Rayleigh number for individual rods within the array.

  13. Horizontal natural gas storage caverns and methods for producing same

    DOE Patents [OSTI]

    Russo, Anthony

    1995-01-01

    The invention provides caverns and methods for producing caverns in bedded salt deposits for the storage of materials that are not solvents for salt. The contemplated salt deposits are of the bedded, non-domed variety, more particularly salt found in layered formations that are sufficiently thick to enable the production of commercially usefully sized caverns completely encompassed by walls of salt of the formation. In a preferred method, a first bore hole is drilled into the salt formation and a cavity for receiving insolubles is leached from the salt formation. Thereafter, at a predetermined distance away from the first bore hole, a second bore hole is drilled towards the salt formation. As this drill approaches the salt, the drill assumes a slant approach and enters the salt and drills through it in a horizontal direction until it intersects the cavity for receiving insolubles. This produces a substantially horizontal conduit from which solvent is controlledly supplied to the surrounding salt formation, leaching the salt and producing a concentrated brine which is removed through the first bore hole. Insolubles are collected in the cavity for receiving insolubles. By controlledly supplying solvent, a horizontal cavern is produced with two bore holes extending therefrom.

  14. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Annual report, March 1996--March 1997

    SciTech Connect (OSTI)

    1998-04-01

    This Class II field project has demonstrated that economic quantities of hydrocarbons can be produced from abandoned or nearly abandoned fields in the Dundee Formation of Central Michigan using horizontal drilling technology. The site selected for the demonstration horizontal well was Crystal Field, a nearly abandoned Dundee oil field in Montcalm County, Michigan. This field had produced over 8 million barrels of oil, mostly in the 1930`s and 1940`s. At the height of development, Crystal Field produced from 193 wells, but by 1995, only seven producing wells remained, each producing less than 10 bbls/day. A horizontal well, the TOW 1-3, drilled as a field demonstration pilot was successful, producing at rate of 100 bbls of oil per day with a zero water cut. Although the well is capable of producing at a of 500+ bbls/day, the production rate is being kept low deliberately to try to prevent premature water coning. Cumulative production exceeded 50,000 bbls of oil by the end of April, 1997 and lead to the permitting and licensing of several dozen Dundee wells by project end. Twelve of these permits were for continued development of Crystal Field. Two long horizontal wells were drilled successfully in Crystal after the TOW 1-3, but were disappointing economically. Core and logs from the Dundee interval were recovered from a vertical borehole at the same surface location. The addition of several horizontal wells will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels.

  15. Experimental on two sensors combination used in horizontal pipe gas-water two-phase flow

    SciTech Connect (OSTI)

    Wu, Hao; Dong, Feng

    2014-04-11

    Gas-water two phase flow phenomenon widely exists in production and living and the measurement of it is meaningful. A new type of long-waist cone flow sensor has been designed to measure two-phase mass flow rate. Six rings structure of conductance probe is used to measure volume fraction and axial velocity. The calibration of them have been made. Two sensors have been combined in horizontal pipeline experiment to measure two-phase flow mass flow rate. Several model of gas-water two-phase flow has been discussed. The calculation errors of total mass flow rate measurement is less than 5% based on the revised homogeneous flow model.

  16. Improvements to Existing Jefferson Lab Wire Scanners

    SciTech Connect (OSTI)

    McCaughan, Michael D.; Tiefenback, Michael G.; Turner, Dennis L.

    2013-06-01

    This poster will detail the augmentation of selected existing CEBAF wire scanners with commercially available hardware, PMTs, and self created software in order to improve the scanners both in function and utility.

  17. Existing Facilities Performance Based Incentive Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    NOTE: Beginning September 21, 2015, NYSERDA is modifying the incentives available through the Existing Facilities Program for the rest of the program year 2015. The changes include i) eliminating...

  18. EWEB- Existing Facilities Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Eugene Water and Electric Board (EWEB) offers an extensive list of energy efficiency rebates for existing facilities that apply to both specific equipment, as well as customized rebates for more...

  19. Crosswell Imaging Technology & Advanced DSR Navigation for Horizontal Directional Drilling

    SciTech Connect (OSTI)

    Larry Stolarczyk

    2008-08-08

    The objective of Phase II is to develop and demonstrate real-time measurement-while-drilling (MWD) for guidance and navigation of drill strings during horizontal drilling operations applicable to both short and long holes. The end product of Phase II is a functional drill-string assembly outfitted with a commercial version of Drill String Radar (DSR). Project Objectives Develop and demonstrate a dual-phase methodology of in-seam drilling, imaging, and structure confirmation. This methodology, illustrated in Figure 1, includes: (1) Using RIM to image between drill holes for seam thickness estimates and in-seam structures detection. Completed, February 2005; and (2) Using DSR for real-time MWD guidance and navigation of drillstrings during horizontal drilling operations. Completed, November 2008. As of November 2008, the Phase II portion of Contract DE-FC26-04NT42085 is about 99% complete, including milestones and tasks original outlined as Phase II work. The one percent deficiency results from MSHA-related approvals which have yet to be granted (at the time of reporting). These approvals are pending and are do not negatively impact the scope of work or project objectives.

  20. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    cost-effective horizontal ground heat exchanger that can be connected to water-to-water or water-to-air heat pump systems for space conditioning as well as domestic water heating. ...

  1. Natural convection heat transfer on two horizontal cylinders in liquid sodium

    SciTech Connect (OSTI)

    Hata, K.; Shiotsu, M.; Takeuchi, Y.

    1995-09-01

    Natural convection heat transfer on two horizontal 7.6 mm diameter test cylinders assembled with the ratio of the distance between each cylinder axis to the cylinder diameter, S/D, of 2 in liquid sodium was studied experimentally and theoretically. The heat transfer coefficients on the cylinder surface due to the same heat inputs ranging from 1.0 X 10{sup 7} to 1.0 x 10{sup 9} W/m{sup 3} were obtained experimentally for various setting angeles, {gamma}, between vertical direction and the plane including both of these cylinder axis over the range of zero to 90{degrees}. Theoretical equations for laminar natural convection heat transfer from the two horizontal cylinders were numerically solved for the same conditions as the experimental ones considering the temperature dependence of thermophysical properties concerned. The average Nusselt numbers, Nu, values on the Nu versus modified Rayleigh number, R{sub f}, graph. The experimental values of Nu for the upper cylinder are about 20% lower than those for the lower cylinder at {gamma} = 0{degrees} for the range of R{sub f} tested here. The value of Nu for the upper cylinder becomes higher and approaches that for the lower cylinder with the increase in {gamma} over range of 0 to 90{degrees}. The values of Nu for the lower cylinder at each {gamma} are almost in agreement with those for a single cylinder. The theoretical values of Nu on two cylinders except those for R{sub f}<4 at {gamma} = 0{degrees} are in agreement with the experimental data at each {gamma} with the deviations less than 15%. Correlations for Nu on the upper and lower cylinders were obtained as functions of S/D and {gamma} based n the theoretical solutions for the S/D ranged over 1.5 to 4.0.

  2. Overview of Existing Wind Energy Ordinances

    SciTech Connect (OSTI)

    Oteri, F.

    2008-12-01

    Due to increased energy demand in the United States, rural communities with limited or no experience with wind energy now have the opportunity to become involved in this industry. Communities with good wind resources may be approached by entities with plans to develop the resource. Although these opportunities can create new revenue in the form of construction jobs and land lease payments, they also create a new responsibility on the part of local governments to ensure that ordinances will be established to aid the development of safe facilities that will be embraced by the community. The purpose of this report is to educate and engage state and local governments, as well as policymakers, about existing large wind energy ordinances. These groups will have a collection of examples to utilize when they attempt to draft a new large wind energy ordinance in a town or county without existing ordinances.

  3. Mixed convection transport from an isolated heat source module on a horizontal plate

    SciTech Connect (OSTI)

    Kang, B.H.; Jaluria, Y.; Tewari, S.S. )

    1990-08-01

    An experimental study of the mixed convective heat transfer from an isolated source of finite thickness, located on a horizontal surface in an externally induced forced flow, has been carried out. This problem is of particular interest in the cooling of electronic components and also in the thermal transport associated with various manufacturing systems, such as ovens and furnaces. The temperature distribution in the flow as well as the surface temperature variation are studied in detail. The dependence of the heat transfer rate on the mixed convection parameter and on the thickness of the heated element or source, particularly in the vicinity of the source, is investigated. The results obtained indicate that the heat transfer rate and fluid flow characteristics vary strongly with the mixed convection variables. The transition from a natural convection dominated flow to a forced convection dominated flow is studied experimentally and the basic characteristics of the two regimes determined. This transition has a strong influence on the temperature of the surface and on the heat transfer rate. As expected, the forced convection dominated flow is seen to be significantly more effective in the cooling of a heat dissipating component than a natural convection dominated flow. The location of the maximum temperature on the module surface, which corresponds to the minimum local heat transfer coefficient, is determined and discussed in terms of the underlying physical mechanisms. The results obtained are also compared with these for an element of negligible thickness and the effect of a significant module thickness on the transport is determined. Several other important aspects of fundamental and applied interest are studied in this investigation.

  4. A Horizontal Well Program for the Upper Miocene 26R Pool, Elk Hills Field, California

    SciTech Connect (OSTI)

    Reid, S.A.; Kuespert, J.G.; McJannet, G.S.

    1992-07-01

    The goals of this paper are to (1) summarize the complex geologic and reservoir characteristics of the 26R Pool, (2) note those characteristics and criteria that would make this Pool ideally suited for horizontal well technology, (3) discuss the evolution of horizontal drilling technology and our corresponding development of knowledge about the 26R Pool, and (4) discuss how our objectives have been achieved by utilizing horizontal wells. (VC)

  5. A Horizontal Well Program for the Upper Miocene 26R Pool, Elk Hills Field, California

    SciTech Connect (OSTI)

    Reid, S.A. ); Kuespert, J.G. ); McJannet, G.S. )

    1992-01-01

    The goals of this paper are to (1) summarize the complex geologic and reservoir characteristics of the 26R Pool, (2) note those characteristics and criteria that would make this Pool ideally suited for horizontal well technology, (3) discuss the evolution of horizontal drilling technology and our corresponding development of knowledge about the 26R Pool, and (4) discuss how our objectives have been achieved by utilizing horizontal wells. (VC)

  6. Curiosity Rover confirms existence of a large ancient lake on Mars

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Curiosity Rover confirms existence of a large ancient lake on Mars Curiosity Rover confirms existence of a large ancient lake on Mars New findings released today in the journal Science show substantial bodies of water likely existed on the surface of the planet in its early history. October 8, 2015 The DOE Secretary's Achievement Award is presented to the RLUOB Transfer Team. Top (from left): David Gallimore, Brett Cederdahl, Mike Parkes, Tim Leckbee and Tim Nelson. Bottom (from left): Denise

  7. Existence and Properties of an Collisions

    SciTech Connect (OSTI)

    Warnock, Robert L.

    2001-02-15

    The equilibrium phase distribution of stored colliding electron beams is studied from the viewpoint of Vlasov-Fokker-Planck (VFP) theory. Numerical integration of the VFP system in one degree of freedom revealed a nearly Gaussian equilibrium with non-diagonal covariance matrix. This result is reproduced approximately in an analytic theory based on linearization of the beam-beam force. Analysis of an integral equation for the equilibrium distribution, without linearization, establishes the existence of a unique equilibrium at sufficiently small current. The role of damping and quantum noise is clarified through a new representation of the propagator of the linear Fokker-Planck equation with harmonic force.

  8. Energy Savings Measure Packages: Existing Homes

    SciTech Connect (OSTI)

    Casey, S.; Booten, C.

    2011-11-01

    This document presents the most cost effective Energy Savings Measure Packages (ESMP) for existing mixed-fuel and all electric homes to achieve 15% and 30% savings for each BetterBuildings grantee location across the US. These packages are optimized for minimum cost to homeowners for given source energy savings given the local climate and prevalent building characteristics (i.e. foundation types). Maximum cost savings are typically found between 30% and 50% energy savings over the reference home. The dollar value of the maximum annual savings varies significantly by location but typically amounts to $300 - $700/year.

  9. Energy Savings Measure Packages. Existing Homes

    SciTech Connect (OSTI)

    Casey, Sean; Booten, Chuck

    2011-11-01

    This document presents the most cost effective Energy Savings Measure Packages (ESMP) for existing mixed-fuel and all electric homes to achieve 15% and 30% savings for each BetterBuildings grantee location across the United States. These packages are optimized for minimum cost to homeowners for source energy savings given the local climate and prevalent building characteristics (i.e. foundation types). Maximum cost savings are typically found between 30% and 50% energy savings over the reference home; this typically amounts to $300 - $700/year.

  10. Global horizontal irradiance clear sky models : implementation and analysis.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

    2012-03-01

    Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

  11. Horizontally scaling dChache SRM with the Terracotta platform

    SciTech Connect (OSTI)

    Perelmutov, T.; Crawford, M.; Moibenko, A.; Oleynik, G.; /Fermilab

    2011-01-01

    The dCache disk caching file system has been chosen by a majority of LHC experiments Tier 1 centers for their data storage needs. It is also deployed at many Tier 2 centers. The Storage Resource Manager (SRM) is a standardized grid storage interface and a single point of remote entry into dCache, and hence is a critical component. SRM must scale to increasing transaction rates and remain resilient against changing usage patterns. The initial implementation of the SRM service in dCache suffered from an inability to support clustered deployment, and its performance was limited by the hardware of a single node. Using the Terracotta platform, we added the ability to horizontally scale the dCache SRM service to run on multiple nodes in a cluster configuration, coupled with network load balancing. This gives site administrators the ability to increase the performance and reliability of SRM service to face the ever-increasing requirements of LHC data handling. In this paper we will describe the previous limitations of the architecture SRM server and how the Terracotta platform allowed us to readily convert single node service into a highly scalable clustered application.

  12. Experimental investigation of ice slurry flow pressure drop in horizontal tubes

    SciTech Connect (OSTI)

    Grozdek, Marino; Khodabandeh, Rahmatollah; Lundqvist, Per [Royal Institute of Technology, Department of Energy Technology, Division of Applied Thermodynamics and Refrigeration, Brinellvaegen 68, 10044 Stockholm (Sweden)

    2009-01-15

    Pressure drop behaviour of ice slurry based on ethanol-water mixture in circular horizontal tubes has been experimentally investigated. The secondary fluid was prepared by mixing ethyl alcohol and water to obtain initial alcohol concentration of 10.3% (initial freezing temperature -4.4 C). The pressure drop tests were conducted to cover laminar and slightly turbulent flow with ice mass fraction varying from 0% to 30% depending on test conditions. Results from flow tests reveal much higher pressure drop for higher ice concentrations and higher velocities in comparison to the single phase flow. However for ice concentrations of 15% and higher, certain velocity exists at which ice slurry pressure drop is same or even lower than for single phase flow. It seems that higher ice concentration delay flow pattern transition moment (from laminar to turbulent) toward higher velocities. In addition experimental results for pressure drop were compared to the analytical results, based on Poiseulle and Buckingham-Reiner models for laminar flow, Blasius, Darby and Melson, Dodge and Metzner, Steffe and Tomita for turbulent region and general correlation of Kitanovski which is valid for both flow regimes. For laminar flow and low buoyancy numbers Buckingham-Reiner method gives good agreement with experimental results while for turbulent flow best fit is provided with Dodge-Metzner and Tomita methods. Furthermore, for transport purposes it has been shown that ice mass fraction of 20% offers best ratio of ice slurry transport capability and required pumping power. (author)

  13. Use of jet grouting to create a low permeability horizontal barrier below an incinerator ash landfill

    SciTech Connect (OSTI)

    Furth, A.J.; Burke, G.K.; Deutsch, W.L. Jr.

    1997-12-31

    The City of Philadelphia`s Division of Aviation (DOA) has begun construction of a new commuter runway, designated as Runway 8-26, at the Philadelphia International Airport. A portion of this runway will be constructed over a former Superfund site known as the Enterprise Avenue Landfill, which for many years was used to dispose of solid waste incinerator ash and other hazardous materials. The site was clay capped in the 1980`s, but in order for the DOA to use the site, additional remediation was needed to meet US EPA final closure requirements. One component of the closure plan included installation of a low permeability horizontal barrier above a very thin (approximately 0.61 to 0.91 meters) natural clay stratum which underlies an approximately 1020 m{sup 2} area of the landfill footprint so as to insure that a minimum 1.52 meter thick low permeability barrier exists beneath the entire 150,000 m{sup 2} landfill. The new barrier was constructed using jet grouting techniques to achieve remote excavation and replacement of the bottom 0.91 meters of the waste mass with a low permeability grout. The grout was formulated to meet the low permeability, low elastic modulus and compressive strength requirements of the project design. This paper will discuss the advantages of using jet grouting for the work and details the development of the grout mixture, modeling of the grout zone under load, field construction techniques, performance monitoring and verification testing.

  14. Constraints on helium enhancement in the globular cluster M4 (NGC 6121): The horizontal branch test

    SciTech Connect (OSTI)

    Valcarce, A. A. R.; De Medeiros, J. R.; Catelan, M.; Alonso-García, J.; Cortés, C.

    2014-02-20

    Recent pieces of evidence have revealed that most, and possibly all, globular star clusters are composed of groups of stars that formed in multiple episodes with different chemical compositions. In this sense, it has also been argued that variations in the initial helium abundance (Y) from one population to the next are also the rule, rather than the exception. In the case of the metal-intermediate globular cluster M4 (NGC 6121), recent high-resolution spectroscopic observations of blue horizontal branch (HB) stars (i.e., HB stars hotter than the RR Lyrae instability strip) suggest that a large fraction of blue HB stars are second-generation stars formed with high helium abundances. In this paper, we test this scenario by using recent photometric and spectroscopic data together with theoretical evolutionary computations for different Y values. Comparing the photometric data with the theoretically derived color-magnitude diagrams, we find that the bulk of the blue HB stars in M4 have ?Y ? 0.01 with respect to the cluster's red HB stars (i.e., HB stars cooler than the RR Lyrae strip)—a result which is corroborated by comparison with spectroscopically derived gravities and temperatures, which also favor little He enhancement. However, the possible existence of a minority population on the blue HB of the cluster with a significant He enhancement level is also discussed.

  15. Review of existing reactive transport software

    SciTech Connect (OSTI)

    Glassley, W., LLNL

    1998-02-03

    Simulations of thermal and hydrological evolution following the potential emplacement of a subterranean nuclear waste repository at Yucca Mountain, NV provide data that suggest the inevitability of dependent, simultaneous chemical evolution in this system. These chemical changes will modify significantly both the magnitude and structure of local porosity and permeability; hence, they will have a dynamic feedback effect on the evolving thermal and hydrological regime. Yet, despite this intimate interdependence of transport and chemical processes, a rigorous quantitative analysis of the post- emplacement environment that incorporates this critical feedback mechanism has not been completed to date. As an initial step in this direction, the present document outlines the fundamental chemical and transport processes that must be accounted for in such an analysis, and reviews the inventory of existing software that encodes these processed in explicitly coupled form. A companion report describes the prioritization of specific capabilities that are needed for modeling post-emplacement reactive transport at Yucca Mountain.

  16. New Report Characterizes Existing Offshore Wind Grid Interconnection...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Report Characterizes Existing Offshore Wind Grid Interconnection Capabilities New Report Characterizes Existing Offshore Wind Grid Interconnection Capabilities September 3, 2014 - ...

  17. Horizontal oil well applications and oil recovery assessment. Volume 2: Applications overview, Final report

    SciTech Connect (OSTI)

    Deskins, W.G.; McDonald, W.J.; Knoll, R.G.; Springer, S.J.

    1995-03-01

    Horizontal technology has been applied in over 110 formations in the USA. Volume 1 of this study addresses the overall success of horizontal technology, especially in less-publicized formations, i.e., other than the Austin Chalk, Bakken, and Niobrara. Operators in the USA and Canada were surveyed on a formation-by-formation basis by means of a questionnaire. Response data were received describing horizontal well projects in 58 formations in the USA and 88 in Canada. Operators` responses were analyzed for trends in technical and economic success based on lithology (clastics and carbonates) and resource type (light oil, heavy oil, and gas). The potential impact of horizontal technology on reserves was also estimated. A forecast of horizontal drilling activity over the next decade was developed.

  18. New design of a guidelineless horizontal tree for deepwater ESP wells

    SciTech Connect (OSTI)

    Olijnik, L.A.; Vigesa, S.; Paula, M.T.R.; Figueiredo, M.W. de; Rutherford, H.W.

    1996-12-31

    This paper presents the new design of a horizontal tree for deepwater installation, as a key piece of equipment for application of a Electrical Submersible Pump in Subsea Wells. The production from subsea wells equipped with ESPs is a reality since October/94 with the first installation in Campos Basin. The horizontal tree adds simplicity to workover operations expected to be two to three times more frequency when compared to natural flow or gas lifted wells. The design and fabrication of the deepwater horizontal tree is a result of a Technological Cooperation Agreement. The design incorporates new solutions, mainly in diverless guidelineless connection of power cables and flowlines using the vertical connection system. The guidelineless horizontal subsea tree is fully prepared to be integrated on the new manifolds being designed for the Brazilian deepwater oilfields. The applications of the horizontal trees in subsea ESP wells reduce intervention cost, increasing economical attractiveness and scenarios for the applications of this new boosting technology.

  19. Coiled tubing workover saves horizontal well in Lake Maracaibo

    SciTech Connect (OSTI)

    Lizak, K.; Patterson, J.; Suarez, D.; Salas, J.

    1996-12-31

    A slotted liner horizontal completion became stuck while being run. Inflatable packers were to be used to isolate the productive interval from a water-bearing, unconsolidated sand in the curved section of this well. While personnel were deciding how to cement the well, the liner was left in the hole with the inflatable packers unset, and the production tubing was run. Coiled tubing was used to log the well, isolate the productive interval, and remove damage to restore well productivity. Personnel considered all possible options, and a thorough decision-making process guided the workover. Because of severe lost-circulation problems, extensive ``what if`` scenarios were made and updated daily for the engineers on location. Service company and oil company personnel worked together to guarantee the job designs were practical and did not exceed the limits of the equipment on location. Computer simulations of all operations were run to allow corrective action to be taken if unusual circumstances arose. All fluids were thoroughly laboratory tested and witnessed by oil company personnel to ensure job success. Problems on the job included lost circulation, locating the exact positions of the packers and water zone, ensuring correct cement placement, removing mud and workover fluids without damaging the squeeze, and bad weather on Lake Maracaibo. Advantages and disadvantages of all the solutions that were considered are included to assist anyone in a similar situation. Post-job oil production has stabilized at 900 BOPD with no water or sand production. Careful job planning and the versatility of coiled tubing saved this well and proved economical with an estimated payout of 33 days, assuming a price of $12 per barrel of oil.

  20. Design and Fabrication of the Superconducting Horizontal Bend Magnet for the Super High Momentum Spectrometer at Jefferson Lab

    SciTech Connect (OSTI)

    Chouhan, Shailendra S.; DeKamp, Jon; Burkhart, E. E,; Bierwagen, J.; Song, H.; Zeller, Albert F.; Brindza, Paul D.; Lassiter, Steven R.; Fowler, Michael J.; Sun, Qiuli

    2015-06-01

    A collaboration exists between NSCL and JLab to design and build JLab's Super High Momentum Spectrometer (SHMS) horizontal bend magnet that allows the bending of the 12 GeV/c particles horizontally by 3° to allow SHMS to reach angles as low as 5.5°. Two full size coils have been wound and are cold tested for both magnetic and structural properties. Each coil is built from 90 layers of single-turn SSC outer conductor cable. An initial test coil with one third the turns was fabricated to demonstrate that the unique saddle shape with fully contoured ends could be wound with Rutherford superconducting cable. Learned lessons during the trial winding were integrated into the two complete full-scale coils that are now installed in the helium vessel. The fabrication of the iron yoke, cold mass, and thermal shield is complete, and assembly of the vacuum vessel is in progress. This paper presents the process and progress along with the modified magnet design to reduce the fringe field in the primary beam region and also includes the impact of the changes on coil forces and coil restraint system.

  1. Interim Storage of Plutonium in Existing Facilities

    SciTech Connect (OSTI)

    Woodsmall, T.D.

    1999-05-10

    'In this era of nuclear weapons disarmament and nonproliferation treaties, among many problems being faced by the Department of Energy is the safe disposal of plutonium. There is a large stockpile of plutonium at the Rocky Flats Environmental Technology Center and it remains politically and environmentally strategic to relocate the inventory closer to a processing facility. Savannah River Site has been chosen as the final storage location, and the Actinide Packaging and Storage Facility (APSF) is currently under construction for this purpose. With the ability of APSF to receive Rocky Flats material an estimated ten years away, DOE has decided to use the existing reactor building in K-Area of SRS as temporary storage to accelerate the removal of plutonium from Rocky Flats. There are enormous cost savings to the government that serve as incentive to start this removal as soon as possible, and the KAMS project is scheduled to receive the first shipment of plutonium in January 2000. The reactor building in K-Area was chosen for its hardened structure and upgraded seismic qualification, both resulting from an effort to restart the reactor in 1991. The KAMS project has faced unique challenges from Authorization Basis and Safety Analysis perspectives. Although modifying a reactor building from a production facility to a storage shelter is not technically difficult, the nature of plutonium has caused design and safety analysis engineers to make certain that the design of systems, structures and components included will protect the public, SRS workers, and the environment. A basic overview of the KAMS project follows. Plutonium will be measured and loaded into DOT Type-B shipping packages at Rocky Flats. The packages are 35-gallon stainless steel drums with multiple internal containment boundaries. DOE transportation vehicles will be used to ship the drums to the KAMS facility at SRS. They will then be unloaded, stacked and stored in specific locations throughout the

  2. Building America Whole-House Solutions for Existing Homes: Cascade...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Whole-House Solutions for Existing Homes: Cascade Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) Building America Whole-House Solutions for Existing...

  3. Pressure Regain Strategies for Existing Air Distribution Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pressure Regain Strategies for Existing Air Distribution Systems Pressure Regain Strategies for Existing Air Distribution Systems This presentation was delivered at the U.S. ...

  4. Adding Insulation to an Existing Home | Department of Energy

    Office of Environmental Management (EM)

    existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. Adding insulation in an existing home saves money and improves comfort. | Photo...

  5. Building America Whole-House Solutions for Existing Homes: Applying...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solutions for Existing Homes: Case Study: Build San Antonio Green, San Antonio, Texas Building America Whole-House Solutions for Existing Homes: Pilot Demonstration of Phased ...

  6. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes:Hydronic Systems Designing for Setback Operations Building America Technology Solutions for New and Existing...

  7. Efficient Solutions for Existing Homes Case Study: Rehabilitations...

    Office of Environmental Management (EM)

    Efficient Solutions for Existing Homes Case Study: Rehabilitations of USDA Multifamily Homes Efficient Solutions for Existing Homes Case Study: Rehabilitations of USDA Multifamily ...

  8. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-07-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the development of simple, robust, MSHA-acceptable clamping unit. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  9. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2003-07-01

    This report describes the technical progress on a project to design and construct a multichannel geophone array that improves tomographic imaging capabilities in both surface and underground mines. No work was completed during this reporting period as project personnel are waiting for the mine to become available for final field testing of the array. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  10. Energy harvesting from coherent resonance of horizontal vibration of beam excited by vertical base motion

    SciTech Connect (OSTI)

    Lan, C. B.; Qin, W. Y.

    2014-09-15

    This letter investigates the energy harvesting from the horizontal coherent resonance of a vertical cantilever beam subjected to the vertical base excitation. The potential energy of the system has two symmetric potential wells. So, under vertical excitation, the system can jump between two potential wells, which will lead to the large vibration in horizontal direction. Two piezoelectric patches are pasted to harvest the energy. From experiment, it is found that the vertical excitation can make the beam turn to be bistable. The system can transform vertical vibration into horizontal vibration of low frequency when excited by harmonic motion. The horizontal coherence resonance can be observed when excited by a vertical white noise. The corresponding output voltages of piezoelectric films reach high values.

  11. The drilling of a horizontal well in a mature oil field

    SciTech Connect (OSTI)

    Rougeot, J.E.; Lauterbach, K.A.

    1991-01-01

    This report documents the drilling of a medium radius horizontal well in the Bartlesville Sand of the Flatrock Field, Osage County, Oklahoma by Rougeot Oil and Gas Corporation (Rougeot) of Sperry, Oklahoma. The report includes the rationale for selecting the particular site, the details of drilling the well, the production response, conclusions reached, and recommendations made for the future drilling of horizontal wells. 11 figs., 2 tabs.

  12. Direct-bandgap electroluminescence from a horizontal Ge p-i-n ridge waveguide on Si(001) substrate

    SciTech Connect (OSTI)

    Liu, Zhi; Li, Yaming; He, Chao; Li, Chuanbo; Xue, Chunlai; Zuo, Yuhua; Cheng, Buwen Wang, Qiming

    2014-05-12

    Horizontal injection Ge p-i-n ridge waveguide light emitting diodes (LEDs) were fabricated on n{sup ?}-Si(001) substrates by ultrahigh vacuum chemical vapor deposition. The direct-bandgap electroluminescence (EL) of Ge waveguide LEDs under a continuous/pulse electrical pump was studied. The heating effect from a continuous electrical pump was found to significantly enhance the emission of devices. The top surface EL intensity of the Ge waveguide LEDs significantly depended on the position. Most direct-bandgap radiative recombination of Ge p-i-n waveguide LEDs occurred near the N{sup +} region of the junction. This interesting phenomenon could be explained by the carrier distribution in the junction and the pseudo-direct bandgap of Ge.

  13. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2003-06-01

    This report describes the technical progress on a project to design and construct a multichannel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  14. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-08-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  15. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2003-01-01

    This report describes the technical progress on a project to design and construct a multichannel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  16. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-07-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  17. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-07-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for orienting the sensor once it is emplaced in the borehole. If the sensors (geophones) do not have the same orientation, the data will be essentially worthless. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  18. Use of Cutting-Edge Horizontal and Underbalanced Drilling Technologies and Subsurface Seismic Techniques to Explore, Drill and Produce Reservoired Oil and Gas from the Fractured Monterey Below 10,000 ft in the Santa Maria Basin of California

    SciTech Connect (OSTI)

    George Witter; Robert Knoll; William Rehm; Thomas Williams

    2006-06-30

    This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were

  19. A Method of Correcting for Tilt From Horizontal in Downwelling Shortwave Irradiance Measurements on Moving Platforms

    SciTech Connect (OSTI)

    Long, Charles N.; Bucholtz, Anthony; Jonsson, Haf; Schmid, Beat; Vogelmann, A. M.; Wood, John

    2010-04-14

    Significant errors occur in downwelling shortwave irradiance measurements made on moving platforms due to tilt from horizontal because, when the sun is not completely blocked by overhead cloud, the downwelling shortwave irradiance has a prominent directional component from the direct sun. A-priori knowledge of the partitioning between the direct and diffuse components of the total shortwave irradiance is needed to properly apply a correction for tilt. This partitioning information can be adequately provided using a newly available commercial radiometer that produces reasonable measurements of the total and diffuse shortwave irradiance, and by subtraction the direct shortwave irradiance, with no moving parts and regardless of azimuthal orientation. We have developed methodologies for determining the constant pitch and roll offsets of the radiometers for aircraft applications, and for applying a tilt correction to the total shortwave irradiance data. Results suggest that the methodology is for tilt up to +/-10°, with 90% of the data corrected to within 10 Wm-2 at least for clear-sky data. Without a proper tilt correction, even data limited to 5° of tilt as is typical current practice still exhibits large errors, greater than 100 Wm-2 in some cases. Given the low cost, low weight, and low power consumption of the SPN1 total and diffuse radiometer, opportunities previously excluded for moving platform measurements such as small Unmanned Aerial Vehicles and solar powered buoys now become feasible using our methodology. The increase in measurement accuracy is important, given current concerns over long-term climate variability and change especially over the 70% of the Earth’s surface covered by ocean where long-term records of these measurements are sorely needed and must be made on ships and buoys.

  20. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir - East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-06-30

    The reservoir characterization and investigation of the benefits of horizontal wells in the East Binger Unit miscible nitrogen flood as been completed. A significant work program was implemented from 2002 to 2005 in an effort to reduce gas cycling and economically increase ultimate oil recovery. Horizontal and vertical infill wells were drilled and existing producers were converted to injection. Due to successful infill drilling based on the improved flow characterization, more drilling was done than originally planned, and further drilling will occur after the project is completed. Through the drilling of wells and reservoir characterization work, it was determined that poor areal sweep efficiency is the primary factor causing nitrogen cycling and limiting oil recovery. This is in contrast to the perception prior to the initiation of development, which was that gravity segregation was causing poor vertical sweep efficiency. Although not true of all infill wells, most were drilled in areas with little sweep and came online producing gas with much lower nitrogen contents than previously drilled wells in the field and in the pilot area. Seven vertical and three horizontal wells were drilled in the pilot area throughout the project. As previously reported, the benefits of horizontal drilling were found to be insufficient to justify their increased cost. Nitrogen recycle, defined as nitrogen production as a percentage of injection, decreased from 72% prior to initiation of the project to about 25% before rising back to a current rate of 40%. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, increased 60% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas both decreased.

  1. Response of precipitation extremes to idealized global warming in an aqua-planet climate model: Towards robust projection across different horizontal resolutions

    SciTech Connect (OSTI)

    Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.

    2011-04-15

    Current climate models produce quite heterogeneous projections for the responses of precipitation extremes to future climate change. To help understand the range of projections from multimodel ensembles, a series of idealized 'aquaplanet' Atmospheric General Circulation Model (AGCM) runs have been performed with the Community Atmosphere Model CAM3. These runs have been analysed to identify the effects of horizontal resolution on precipitation extreme projections under two simple global warming scenarios. We adopt the aquaplanet framework for our simulations to remove any sensitivity to the spatial resolution of external inputs and to focus on the roles of model physics and dynamics. Results show that a uniform increase of sea surface temperature (SST) and an increase of low-to-high latitude SST gradient both lead to increase of precipitation and precipitation extremes for most latitudes. The perturbed SSTs generally have stronger impacts on precipitation extremes than on mean precipitation. Horizontal model resolution strongly affects the global warming signals in the extreme precipitation in tropical and subtropical regions but not in high latitude regions. This study illustrates that the effects of horizontal resolution have to be taken into account to develop more robust projections of precipitation extremes.

  2. Impact of horizontal resolution on simulation of precipitation extremes in an aqua-planet version of the Community Atmosphere Model (CAM)

    SciTech Connect (OSTI)

    Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.; Algieri, C.

    2011-03-01

    One key question regarding current climate models is whether the projection of climate extremes converges to a realistic representation as the spatial and temporal resolutions of the model are increased. Ideally the model extreme statistics should approach a fixed distribution once the resolutions are commensurate with the characteristic length and time scales of the processes governing the formation of the extreme phenomena of interest. In this study, a series of AGCM runs with idealized 'aquaplanet-steady-state' boundary conditions have been performed with the Community Atmosphere Model CAM3 to investigate the effect of horizontal resolution on climate extreme simulations. The use of the aquaplanet framework highlights the roles of model physics and dynamics and removes any apparent convergence in extreme statistics due to better resolution of surface boundary conditions and other external inputs. Assessed at a same large spatial scale, the results show that the horizontal resolution and time step have strong effects on the simulations of precipitation extremes. The horizontal resolution has a much stronger impact on precipitation extremes than on mean precipitation. Updrafts are strongly correlated with extreme precipitation at tropics at all the resolutions, while positive low-tropospheric temperature anomalies are associated with extreme precipitation at mid-latitudes.

  3. Improving the Energy Efficiency of Existing Windows | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving the Energy Efficiency of Existing Windows Improving the Energy Efficiency of Existing Windows October 15, 2008 - 10:56am Addthis Jen Carter What does this mean for me? ...

  4. Operating Experience Level 1, Evaluation of Existing Facilities...

    Broader source: Energy.gov (indexed) [DOE]

    OE-1 2015-01: Evaluation of Existing Facilities to DOE-STD-3009-2014 This Operating Experience Level 1 (OE-1) document provides requirements related to an evaluation of existing...

  5. Building America Technology Solutions for New and Existing Homes: Selecting

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ventilation Systems for Existing Homes | Department of Energy Selecting Ventilation Systems for Existing Homes Building America Technology Solutions for New and Existing Homes: Selecting Ventilation Systems for Existing Homes In multifamily buildings, particularly in the Northeast, exhaust ventilation strategies are the norm as a means of meeting both local exhaust and whole-unit mechanical ventilation rates. The issue of where the fresh air is coming from is gaining significance as

  6. Environmental Impacts of Increased Hydroelectric Development at Existing

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Dams | Department of Energy Impacts of Increased Hydroelectric Development at Existing Dams Environmental Impacts of Increased Hydroelectric Development at Existing Dams This report describes the environmental impacts of a proposed U.S. Department of Energy (DOE) initiative to promote the development of hydropower resources at existing dams. enviro_impacts_hydroelectric_dev_existing_dams.pdf (2.77 MB) More Documents & Publications EA-2017: Final Environmental Assessment Hydropower Vision

  7. Adding Insulation to an Existing Home | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Weatherize » Insulation » Adding Insulation to an Existing Home Adding Insulation to an Existing Home Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. Adding insulation in an existing home saves money and improves comfort. | Photo courtesy of Dennis Schroeder, NREL. Unless your home was specially constructed for energy efficiency, you can probably reduce your energy bills by adding more insulation. Many older homes have less

  8. Building America Whole-House Solutions for Existing Home: Retrofitting...

    Broader source: Energy.gov (indexed) [DOE]

    Insight Homes, Seaford, Delaware Building America Technology Solutions for New and Existing Homes: Innovative Retrofit Foundation Insulation Strategies, Minneapolis, Minnesota

  9. Horizontal molecular orientation in solution-processed organic light-emitting diodes

    SciTech Connect (OSTI)

    Zhao, L.; Inoue, M.; Komino, T.; Kim, J.-H.; Ribierre, J. C. E-mail: adachi@cstf.kyushu-u.ac.jp [Center for Organic Photonics and Electronics Research , Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395; Japan Science and Technology Agency , ERATO, Adachi Molecular Exciton Engineering Project, c and others

    2015-02-09

    Horizontal orientation of the emission transition dipole moments achieved in glassy vapor-deposited organic thin films leads to an enhancement of the light out-coupling efficiency in organic light-emitting diodes (OLEDs). Here, our combined study of variable angle spectroscopic ellipsometry and angle dependent photoluminescence demonstrates that such a horizontal orientation can be achieved in glassy spin-coated organic films based on a composite blend of a heptafluorene derivative as a dopant and a 4,4′-bis(N-carbazolyl)-1,1′-biphenyl as a host. Solution-processed fluorescent OLEDs with horizontally oriented heptafluorene emitters were then fabricated and emitted deep blue electroluminescence with an external quantum efficiency as high as 5.3%.

  10. Successful drilling of the first horizontal well in a mature field

    SciTech Connect (OSTI)

    Marruffo, I.; Achong, C.

    1996-08-01

    This paper discusses how the decision to drill the first horizontal well of a reservoir was taken, based on Production acceleration and the incremental economy of cash flow. The reservoir is located in the Guafita-Norto Field in Western Venezuela, contiguous to the La Yuca-Cano Limon Fields in Colombia. Guafita-Norte has 183 million stb of remaining oil reserves with 26 production wells on electrical submergible pumps. The STOIP of this under saturated reservoir (bubble point pressure is 36 psi) is 160 million stb with an initial GOR of 10 stf/stb, having a permeability between 1.5-12 darcies with a strong water drive, water coning and sanding problems due to fines migration. During 1995, it was decided to drill the first horizontal well in the reservoir based on a 3-D numerical simulation with radial flow (for water coning) and local grid refinement (for horizontal wells) coupled to an economic analysis. The simulation predetermines an initial production rate for a horizontal well 2.5 times greater than for a vertical one, and the incremental cash flow for the horizontal well is 4.5 MM$ larger for the vertical one in four (4) years, with a ROR of 200%. The horizontal well was drilled with oil-based mud to avoid hole collapse, and it was completed open hole with a single screen pack. The well is currently producing between 2000 and 3500 stb/d, clean, on natural flow. This study has clearly shown that the ultimate and decisive parameter to be weighed before undertaking this type of project, is the economic analysis, which must be performed as extensively as the technical analysis.

  11. Recovery of bypassed oil in the Dundee Formation using horizontal drains, Quarterly technical report, 1/1/97--3/31/97

    SciTech Connect (OSTI)

    1997-03-30

    interval were recovered from a vertical borehole at the same surface location. The addition of several horizontal wells will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels. Additional project work involved the characterization of 28 other Dundee fields in Michigan to aid in determining appropriate additional candidates for development through horizontal drilling. Further quantification of reservoir parameters such as importance of fracturing, fracture density, and irregularity of the dolomitized surface at the top of the reservoir will help in designing the optimal strategy for horizontal drilling. The project was a cooperative venture involving the US Department of Energy, Michigan Technological University (MTU), Western Michigan University (WMU), and Terra Energy (now Cronus Development Co.) in Traverse City, MI.

  12. Sustainability in Existing Federal Buildings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Facilities » Sustainable Buildings & Campuses » Sustainability in Existing Federal Buildings Sustainability in Existing Federal Buildings The General Services Administration renovated this historic building to meet zero energy goals. Read the <a href="/node/978261">case study</a>. The General Services Administration renovated this historic building to meet zero energy goals. Read the case study. The Guiding Principles require existing federal buildings to be

  13. Solutions for Combustion Safety in Existing Homes | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solutions for Combustion Safety in Existing Homes Solutions for Combustion Safety in Existing Homes It is often challenging for residential contractors to conduct appropriate combustion safety test procedures in existing homes and use effective actions to address any failures. Commonly used testing methods can be complicated to follow and may be overly conservative, producing false positive results without addressing the fundamental need for inspection of the venting system itself. Additionally,

  14. Geothermal Heat Flow and Existing Geothermal Plants | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Geothermal Heat Flow and Existing Geothermal Plants Geothermal Heat Flow and Existing Geothermal Plants Geothermal Heat Flow and Existing Plants With plants in development. Click on the numbers to see the sites. CLOSE About the Points About the Data What is Heat Flow? Heat Flow (mW/m^2) 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 150 250 View All Maps Addthis

  15. Magnetism and superconductivity observed to exist in harmony

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Magnetism and superconductivity exist in harmony Magnetism and superconductivity observed to exist in harmony Physicists have observed, for the first time in a single exotic phase, a situation where magnetism and superconductivity are necessary for each other's existence. August 28, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable

  16. Challenge # 2 Logistics and Compatibility with Existing Infrastructure

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Throughout Supply Chain | Department of Energy 2 Logistics and Compatibility with Existing Infrastructure Throughout Supply Chain Challenge # 2 Logistics and Compatibility with Existing Infrastructure Throughout Supply Chain Presentation on Challenge # 2 Logistics and Compatibility with Existing Infrastructure Throughout Supply Chain on May 9, 2012, at the Pyrolysis Oil Workshop. pyrolysis_challenge2.pdf (585.2 KB) More Documents & Publications Conversion Technologies for Advanced

  17. Building America Webinar: Solutions for Combustion Safety in Existing Homes

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy Solutions for Combustion Safety in Existing Homes Building America Webinar: Solutions for Combustion Safety in Existing Homes December 16, 2015 3:00PM to 4:30PM EST It is often challenging for residential contractors to conduct appropriate combustion safety test procedures in existing homes and use effective actions to address any failures. Commonly used testing methods can be complicated to follow and may be overly conservative, producing false positive results

  18. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Controls Improve Performance of Combination Space- and Water-Heating Systems Building America Technology Solutions for New and Existing Homes: Advanced Controls Improve Performance ...

  19. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space Building America Technology Solutions for New and ...

  20. Building America Performance Analysis Procedures for Existing Homes

    SciTech Connect (OSTI)

    Hendron, Robert

    2006-05-01

    This report provides a proposed set of guidelines for estimating the energy savings achieved by a package of retrofits or an extensive rehabilitation of an existing home.

  1. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air ...

  2. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Application of ... Homes: Moisture Management of High-R Walls Building America Best ...

  3. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Massachusetts Building America Technology Solutions for New and Existing Homes: Monitoring of ... when compared with high-R approaches using exterior insulating sheathing. ...

  4. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ground Source Heat Pump Research, TaC Studios Residence, Atlanta, Georigia (Fact Sheet), Building America Technology Solutions for New and Existing Homes: Ground Source Heat Pump ...

  5. Building America Whole-House Solutions for Existing Homes: Inverted...

    Energy Savers [EERE]

    Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ...

  6. Existing Commercial Reference Buildings Constructed In or After...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Existing Commercial Reference Buildings Constructed In or After 1980 The files on this ... These U.S. Department of Energy (DOE) reference buildings are complete descriptions for ...

  7. Building America Whole-House Solutions for Existing Homes: Cascade...

    Energy Savers [EERE]

    Homes: Cascade Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Cascade Apartments - Deep Energy Multifamily...

  8. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Strategies and Impacts for 1 12-Story Homes, Minneapolis, Minnesota Building America Technology Solutions for New and Existing Homes: Project Overcoat: Airtightness Strategies and ...

  9. Building America Whole-House Solutions for Existing Homes: Performance...

    Energy Savers [EERE]

    Stockton, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Performance of a Hot-Dry Climate Whole-House Retrofit, Stockton, California (Fact ...

  10. Building America Whole-House Solutions for Existing Homes: Passive...

    Energy Savers [EERE]

    Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) In this ...

  11. Building America Whole-House Solutions for Existing Homes: Applying...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Whole-House Solutions for Existing Homes: Applying Best Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) Building America ...

  12. Business Energy Efficiency Rebate for Existing Buildings | Department...

    Broader source: Energy.gov (indexed) [DOE]

    institutional customers of any of the state's investor owned utilities to increase the energy efficiency of their existing buildings. The standard incentive program provides...

  13. Building America Whole-House Solutions for Existing Homes: Greenbelt...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Greenbelt Homes, Inc. Pilot Retrofit Project - Greenbelt, Maryland Building America Whole-House Solutions for Existing Homes: Greenbelt Homes, Inc. Pilot Retrofit Project - ...

  14. Building America Technology Solutions for Existing Homes: Retrofit...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Retrofit Measures for Embedded Wood Member in Insulated Mass Masonry Walls Building America Technology Solutions for Existing Homes: Retrofit Measures for Embedded Wood Member in ...

  15. Building America Technlogy Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving the Field Performance of Natural Gas Furnaces, Chicago, Illinois (Fact Sheet) Building America Technlogy Solutions for New and Existing Homes: Improving the Field ...

  16. Building America Whole-House Solutions for Existing Homes: National...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Whole-House Solutions for Existing Homes: National Grid Deep Energy Retrofit Pilot, Massachusetts and Rhode Island (Fact Sheet) Building Science Corporation ...

  17. Building America Technology Solutions for New and Existing Homes...

    Energy Savers [EERE]

    Advanced Boiler Load Monitoring Controllers (615.52 KB) More Documents & Publications Building America Technology Solutions for New and Existing Homes: Steam System Balancing and ...

  18. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Installation for Efficiency and Comfort (Fact Sheet) Building America Technology Solutions for New and Existing Homes: A Homeowner's Guide to Window Air Conditioner Installation ...

  19. Building America Whole-House Solutions for Existing Homes: Pilot...

    Energy Savers [EERE]

    Pilot Demonstration of Phased Retrofits in Florida Homes - Central and South Florida (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Pilot Demonstration of ...

  20. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Retrofit Integrated Space and Water Heating-Field Assessment Building America Technology Solutions for New and Existing Homes: Retrofit Integrated Space and Water Heating-Field ...

  1. Building America Whole-House Solutions for Existing Homes: Applying...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Homes: Applying Best Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) Building America Whole-House Solutions for Existing Homes: ...

  2. Building America Efficient Solutions for Existing Homes Case...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Deep Energy Retrofit of 1910 House, Portland, Oregon Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon This ...

  3. Building America Case Studies for Existing Homes: Philadelphia...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Philadelphia Housing Authority Energy-Efficiency Turnover Protocols Building America Case Studies for Existing Homes: Philadelphia Housing Authority Energy-Efficiency Turnover ...

  4. Building America Whole-House Solutions for Existing Homes: Islip...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon Islip Housing Authority Energy Efficiency Turnover Protocols - Islip, NY More Documents & Publications Building America Case Studies for Existing Homes: Philadelphia ...

  5. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes: Low-Load Space-Conditioning Needs Assessment, Northeast and Mid-Atlantic Building America Technology Solutions for...

  6. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes: Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes: Phase 2, Southeastern United States...

  7. Building America Whole-House Solutions for Existing Homes: Cascade...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Building America Whole-House Solutions for Existing Homes: Conway Street Apartments - Greenfield, Massachusetts Building America Whole-House Solutions ...

  8. Building America Whole-House Solutions for Existing Homes: Conway...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Conway Street Apartments - Greenfield, Massachusetts Building America Whole-House Solutions for Existing Homes: Conway Street Apartments - Greenfield, Massachusetts Through recent ...

  9. Building America Whole-House Solutions for Existing Homes: Multifamily...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Whole-House Solutions for New Homes: Shaw Construction, Aspen, Colorado Building America Whole-House Solutions for Existing Homes: Conway Street Apartments - ...

  10. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    team Consortium for Advanced Residential Buildings (CARB) investigated the strategy of using buried andor encapsulated ducts to reduce duct thermal losses in existing homes. ...

  11. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Replacing Resistance Heating with Mini-Split Heat Pumps Building America Technology Solutions for New and Existing Homes: Replacing Resistance Heating with Mini-Split Heat Pumps In...

  12. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New...

  13. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Methods for Multifamily Construction Building America Technology Solutions for New and Existing Homes: Field Testing of Compartmentalization Methods for Multifamily Construction ...

  14. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in Multifamily Buildings, Chicago, Illinois (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Balancing Hydronic Systems in Multifamily Buildings, ...

  15. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and...

  16. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Technology Solutions for New and Existing ... high performance, cost-effective alternative envelope designs that will meet stringent energy code requirements. ...

  17. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Apartment Compartmentalization with an Aerosol-Based Sealing Process Building America Technology Solutions for New and Existing Homes: Apartment Compartmentalization with an...

  18. Building America Efficient Solutions for Existing Homes Case...

    Energy Savers [EERE]

    sealing and insulating exterior walls and attic and installing new, efficient appliances. ... Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit ...

  19. Building America Efficient Solutions for Existing Homes Case...

    Energy Savers [EERE]

    BUILDING TECHNOLOGIES OFFICE Building America Efficient Solutions for Existing Homes Case ... Switching to an efficient heat pump with zonal controls was the best solution to save ...

  20. Building America Efficient Solutions for Existing Homes Case...

    Energy Savers [EERE]

    during its conversion to affordable and efficient housing for low-income families. ... Building America Efficient Solutions for Existing Homes Case Study: Habitat for Humanity ...

  1. Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry

    DOE Patents [OSTI]

    Siminovitch, Michael

    1998-01-01

    A novel design for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment.

  2. Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry

    DOE Patents [OSTI]

    Siminovitch, M.

    1998-02-10

    A novel design is described for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment. 9 figs.

  3. A mechanistic determination of horizontal flow regime bound using void wave celerity

    SciTech Connect (OSTI)

    Park, J.W.

    1995-09-01

    The two-phase flow regime boundaries in a horizontal channel has been investigated by using the behavior of the second order void wave celerities. The average two-fluid model has been constituted with closure relations for horizontally stratified and bubbly flows. A vapor phase turbulent stress model for a smooth interface geometry has been included. It is found that the second order waves (i.e., eigenvalues) propagate in opposite direction with almost the same speed when the liquid phase is stationary. Using the well-posedness limit of the two-phase system, the dispersed-stratified flow regime boundary has been modeled. Two-phase Froude number has been theoretically found to be a convenient parameter in quantifying the flow regime boundary as a function of the void fraction. It is found that interaction between void wave celerities become stronger as the two-phase Froude number is reduced. This result should be interpreted as that gravity and the relative velocity are key parameters in determining flow regime boundaries in a horizontal flow. The influence of the vapor phase turbulent stress found to stabilize the flow stratification. This study clearly shows that the average two-fluid model is very effective for a mechanistic determination of horizontal flow regimes if appropriate closure relations are developed.

  4. Hurricanes in an Aquaplanet World: Implications of the Impacts of External Forcing and Model Horizontal Resolution

    SciTech Connect (OSTI)

    Li, Fuyu; Collins, William D.; Wehner, Michael F.; Leung, Lai-Yung R.

    2013-06-02

    High-resolution climate models have been shown to improve the statistics of tropical storms and hurricanes compared to low-resolution models. The impact of increasing horizontal resolution in the tropical storm simulation is investigated exclusively using a series of Atmospheric Global Climate Model (AGCM) runs with idealized aquaplanet steady-state boundary conditions and a fixed operational storm-tracking algorithm. The results show that increasing horizontal resolution helps to detect more hurricanes, simulate stronger extreme rainfall, and emulate better storm structures in the models. However, increasing model resolution does not necessarily produce stronger hurricanes in terms of maximum wind speed, minimum sea level pressure, and mean precipitation, as the increased number of storms simulated by high-resolution models is mainly associated with weaker storms. The spatial scale at which the analyses are conducted appears to have more important control on these meteorological statistics compared to horizontal resolution of the model grid. When the simulations are analyzed on common low-resolution grids, the statistics of the hurricanes, particularly the hurricane counts, show reduced sensitivity to the horizontal grid resolution and signs of scale invariant.

  5. Mapping Geothermal Heat Flow and Existing Plants | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Power generation comes from drawing heat from the fluid found naturally deep below the Earth's surface. Steam is captured at the surface and spins a turbine, which then powers an ...

  6. Building America Performance Analysis Procedures for Existing Homes

    SciTech Connect (OSTI)

    Hendron, R.

    2006-05-01

    Because there are more than 101 million residential households in the United States today, it is not surprising that existing residential buildings represent an extremely large source of potential energy savings. Because thousands of these homes are renovated each year, Building America is investigating the best ways to make existing homes more energy-efficient, based on lessons learned from research in new homes. The Building America program is aiming for a 20%-30% reduction in energy use in existing homes by 2020. The strategy for the existing homes project of Building America is to establish technology pathways that reduce energy consumption cost-effectively in American homes. The existing buildings project focuses on finding ways to adapt the results from the new homes research to retrofit applications in existing homes. Research activities include a combination of computer modeling, field demonstrations, and long-term monitoring to support the development of integrated approaches to reduce energy use in existing residential buildings. Analytical tools are being developed to guide designers and builders in selecting the best approaches for each application. Also, DOE partners with the U.S. Environmental Protection Agency (EPA) to increase energy efficiency in existing homes through the Home Performance with ENERGY STAR program.

  7. Building America Performance Analysis Procedures for Existing Homes

    SciTech Connect (OSTI)

    2006-05-01

    Building America is investigating the best ways to make existing homes more energy-efficient, based on lessons learned from research in new homes. America program is aiming for a 20%–30% reduction in energy use in existing homes by 2020.

  8. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Optimizing Hydronic System Performance in Residential Applications (Fact Sheet) | Department of Energy Building America Technology Solutions for New and Existing Homes: Optimizing Hydronic System Performance in Residential Applications (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Optimizing Hydronic System Performance in Residential Applications (Fact Sheet) In this project, researchers from the Consortium for Advanced Residential Buildings team worked with

  9. Use of Cutting-Edge Horizontal and Underbalanced Drilling Technologies and Subsurface Seismic Techniques to Explore, Drill and Produce Reservoired Oil and Gas from the Fractured Monterey Below 10,000 ft in the Santa Maria Basin of California

    SciTech Connect (OSTI)

    George Witter; Robert Knoll; William Rehm; Thomas Williams

    2005-09-29

    This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were

  10. USE OF CUTTING-EDGE HORIZONTAL AND UNDERBALANCED DRILLING TECHNOLOGIES AND SUBSURFACE SEISMIC TECHNIQUES TO EXPLORE, DRILL AND PRODUCE RESERVOIRED OIL AND GAS FROM THE FRACTURED MONTEREY BELOW 10,000 FT IN THE SANTA MARIA BASIN OF CALIFORNIA

    SciTech Connect (OSTI)

    George Witter; Robert Knoll; William Rehm; Thomas Williams

    2005-02-01

    This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area by Temblor Petroleum with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper

  11. Building America Technology Solutions for New and Existing Homes: Excavationless: Exterior-Side Foundation Insulation for Existing Homes (Fact Sheet)

    Broader source: Energy.gov [DOE]

    This project describes an innovative, minimally invasive building foundation insulation upgrade technique on an existing home that uses hydrovac excavation technology combined with a liquid insulating foam.

  12. A Subbasin-based framework to represent land surface processes in an Earth System Model

    SciTech Connect (OSTI)

    Tesfa, Teklu K.; Li, Hongyi; Leung, Lai-Yung R.; Huang, Maoyi; Ke, Yinghai; Sun, Yu; Liu, Ying

    2014-05-20

    Realistically representing spatial heterogeneity and lateral land surface processes within and between modeling units in earth system models is important because of their implications to surface energy and water exchange. The traditional approach of using regular grids as computational units in land surface models and earth system models may lead to inadequate representation of lateral movements of water, energy and carbon fluxes, especially when the grid resolution increases. Here a new subbasin-based framework is introduced in the Community Land Model (CLM), which is the land component of the Community Earth System Model (CESM). Local processes are represented assuming each subbasin as a grid cell on a pseudo grid matrix with no significant modifications to the existing CLM modeling structure. Lateral routing of water within and between subbasins is simulated with the subbasin version of a recently-developed physically based routing model, Model for Scale Adaptive River Routing (MOSART). As an illustration, this new framework is implemented in the topographically diverse region of the U.S. Pacific Northwest. The modeling units (subbasins) are delineated from high-resolution Digital Elevation Model while atmospheric forcing and surface parameters are remapped from the corresponding high resolution datasets. The impacts of this representation on simulating hydrologic processes are explored by comparing it with the default (grid-based) CLM representation. In addition, the effects of DEM resolution on parameterizing topography and the subsequent effects on runoff processes are investigated. Limited model evaluation and comparison showed that small difference between the averaged forcing can lead to more significant difference in the simulated runoff and streamflow because of nonlinear horizontal processes. Topographic indices derived from high resolution DEM may not improve the overall water balance, but affect the partitioning between surface and subsurface runoff

  13. Environmental impacts of increased hydroelectric development at existing dams

    SciTech Connect (OSTI)

    Railsback, S. F.; Cada, G. F.; Petrich, C. H.; Sale, M. J.; Shaakir-Ali, J. A.; Watts, J. A.; Webb, J. W.

    1991-04-01

    This report describes the environmental impacts of a proposed U.S. Department of Energy (DOE) initiative to promote the development of hydropower resources at existing dams. Hydropower development at existing dams has, in general, fewer impacts than development of additional fossil-fueled resources or hydropower at new dams, although potential cumulative impacts of developing multiple hydropower projects have not been explicitly addressed. Environmental review of project impacts and mitigation needs can ensure that additional hydropower development at existing dams can provide a renewable resource with fewer impacts than alternative resources.

  14. New correlation to predict the heat transfer coefficient in-tube cooling of supercritical CO{sub 2} in horizontal macro-tubes

    SciTech Connect (OSTI)

    Oh, Hoo-Kyu; Son, Chang-Hyo

    2010-11-15

    The heat transfer coefficient during gas cooling process of supercritical CO{sub 2} without lubricating oil in horizontal macro-tubes has experimentally investigated. Investigation has done on two stainless steel circular tubes having inside-diameter of 4.55 mm and 7.75 mm and carried out for CO{sub 2} mass fluxes of 200-600 kg/m{sup 2} s, inlet fluid pressures of 7.5-10.0 MPa, and the inlet fluid temperatures of 90-100 C. The experimental results indicate that the gas cooling pressure, the inner tube diameter, the mass flux and the temperature of CO{sub 2} have significant effects on the heat transfer coefficient, especially near pseudo-critical region. The heat transfer coefficient decreases as the cooling pressure increases otherwise increases as mass flux increases. At any temperatures, smaller inner tube diameter shows higher heat transfer coefficient. In comparison between present experimental data and existing correlations from references, most of supercritical heat transfer correlations show large deviations with this present experimental data. Therefore, based on experimental data obtained in this present work, a new correlation is proposed to predict more accurate heat transfer coefficient of supercritical CO{sub 2} in horizontal macro-tubes under cooling conditions. The majority of the experimental values are within 13% of the values predicted by the new correlation. (author)

  15. Building America Technology Solutions for New and Existing Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Long-Term Monitoring of Mini-Split Ductless Heat Pumps in the Northeast, Devens and ... Building America Technology Solutions for New and Existing Homes: Long-Term Monitoring of ...

  16. New York City- Energy Conservation Requirements for Existing Buildings

    Broader source: Energy.gov [DOE]

    Council Bill No. 564-A (Local Law 85 of 2009): Requires that renovations of existing buildings meet minimum energy conservation standards. The result of this law is essentially a city energy code ...

  17. Building America Whole-House Solutions for Existing Homes: Exterior...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    A "Plug-n-Play" Air Delivery System for Low-Load Homes and Evaluation of a Residential Thermal Comfort Rating Method Building America Efficient Solutions for Existing Homes Case ...

  18. Existing Commercial Reference Buildings Constructed Before 1980 — Archive

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary of building types and...

  19. Building America Technology Solutions for New and Existing Homes...

    Energy Savers [EERE]

    Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Performance of a Heat Pump Water Heater in ...

  20. EXTENDED SCHMIDT LAW: ROLE OF EXISTING STARS IN CURRENT STAR...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; DENSITY; GALACTIC EVOLUTION; MASS; STARS; SURFACES EVOLUTION; PHYSICAL ...

  1. Building America Expert Meeting: Transforming Existing Buildings through

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Media--An Idea Exchange | Department of Energy Transforming Existing Buildings through New Media--An Idea Exchange Building America Expert Meeting: Transforming Existing Buildings through New Media--An Idea Exchange This report describes results of a Building America expert meeting on September 13, 2011, in Las Vegas, Nevada, hosted by the Building America Retrofit Alliance (BARA). This meeting provided a forum for presentations and discussions on the use of new media to work with

  2. Building America Technology Solutions for Existing Homes: Initial and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Long-Term Cladding Over Exterior Insulation | Department of Energy Existing Homes: Initial and Long-Term Cladding Over Exterior Insulation Building America Technology Solutions for Existing Homes: Initial and Long-Term Cladding Over Exterior Insulation This research conducted by Building Science Corporation evaluated the system mechanics and long-term performance of the use of wood furring strips attached through the insulation back to the structure to provide a convenient cladding

  3. Building America Technology Solutions for New and Existing Homes: Air

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Leakage and Air Transfer Between Garage and Living Space | Department of Energy Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland,

  4. Building America Technology Solutions for New and Existing Homes: New

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Insights for Improving the Designs of Flexible Duct Junction Boxes (Fact Sheet) | Department of Energy Building America Technology Solutions for New and Existing Homes: New Insights for Improving the Designs of Flexible Duct Junction Boxes (Fact Sheet) Building America Technology Solutions for New and Existing Homes: New Insights for Improving the Designs of Flexible Duct Junction Boxes (Fact Sheet) IBACOS explored the relationships between pressure and physical configurations of flexible

  5. Investments in Existing Hydropower Unlock More Clean Energy | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Investments in Existing Hydropower Unlock More Clean Energy Investments in Existing Hydropower Unlock More Clean Energy August 14, 2013 - 2:21pm Addthis Tacoma Power's Cushman Hydroelectric Project installed a new two-generator powerhouse that increases electric generation capacity by 3.6 megawatts and captures energy from previously untapped water flows. | Photo courtesy of Tacoma Power. Tacoma Power's Cushman Hydroelectric Project installed a new two-generator powerhouse that

  6. New Report Characterizes Existing Offshore Wind Grid Interconnection

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Capabilities | Department of Energy Characterizes Existing Offshore Wind Grid Interconnection Capabilities New Report Characterizes Existing Offshore Wind Grid Interconnection Capabilities September 3, 2014 - 10:49am Addthis The Energy Department today released the first National Offshore Wind Energy Grid Interconnection Study (NOWEGIS). The NOWEGIS investigated the key economic and technological factors that will influence the integration of offshore wind energy onto the national grid.

  7. GAO Report -- National Environmental Policy Act: Little Information Exists

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    on NEPA Analyses | Department of Energy GAO Report -- National Environmental Policy Act: Little Information Exists on NEPA Analyses GAO Report -- National Environmental Policy Act: Little Information Exists on NEPA Analyses A report by the United States Government Accountability Office (GAO) on the costs, time frames, and benefits of the NEPA process. The report posted here has been modified through the addition of yellow highlighting to denote text referring to DOE or DOE data. The original

  8. DOE Preliminary Plan for Retrospective Analysis of Existing Rules |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Preliminary Plan for Retrospective Analysis of Existing Rules DOE Preliminary Plan for Retrospective Analysis of Existing Rules On January 18, 2011, the President issued Executive Order 13563, "Improving Regulation and Regulatory Review," to ensure that Federal regulations seek more affordable, less intrusive means to achieve policy goals, and that agencies give careful consideration to the benefits and costs of those regulations. Executive Order 13563

  9. Chapter 3 - Existing Environment, Pages 1-7

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3-1 CHAPTER 3 EXISTING ENVIRONMENT This chapter describes the existing environment at the three sites under consideration in this EA: the CEMRC in Carlsbad (the location where research activities would occur under the Proposed Action), the WIPP site (the location where research activities would occur under the WIPP Alternative), and LANL (the location where research activities would continue under the No Action Alternative). Descriptions of the CEMRC site were obtained from the CEMRC EA (DOE

  10. Building America Technology Solutions for Existing Homes: Retrofit Measures

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for Embedded Wood Member in Insulated Mass Masonry Walls | Department of Energy Existing Homes: Retrofit Measures for Embedded Wood Member in Insulated Mass Masonry Walls Building America Technology Solutions for Existing Homes: Retrofit Measures for Embedded Wood Member in Insulated Mass Masonry Walls In this project, the Building Science Corporation team studied a historic brick building in Lawrence, Massachusetts, which is being renovated into 10 condominium units and adding insulation to

  11. Building America Whole-House Solutions for Existing Homes: Cascade

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) | Department of Energy Building America Whole-House Solutions for Existing Homes: Cascade Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Cascade Apartments - Deep Energy Multifamily Retrofit (Fact Sheet) This project implemented energy retrofit improvements in the Cascade multifamily community, which resulted in annual energy cost savings of 22%, improved comfort

  12. Building America Whole-House Solutions for Existing Homes: Passive

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Room-to-Room Air Transfer, Fresno, California (Fact Sheet) | Department of Energy Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors

  13. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Kelkar, Mohan; Liner, Chris; Kerr, Dennis

    1999-10-15

    This final report describes the progress during the six year of the project on ''Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance.'' This report is funded under the Department of Energy's (DOE's) Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially-dominated deltaic deposits. The project involves using an integrated approach to characterize the reservoir followed by drilling of horizontal injection wells to improve production performance. The project was divided into two budget periods. In the first budget period, many modern technologies were used to develop a detailed reservoir management plan; whereas, in the second budget period, conventional data was used to develop a reservoir management plan. The idea was to determine the cost effectiveness of various technologies in improving the performance of mature oil fields.

  14. A criterion for the onset of slugging in horizontal stratified air-water countercurrent flow

    SciTech Connect (OSTI)

    Chun, Moon-Hyun; Lee, Byung-Ryung; Kim, Yang-Seok

    1995-09-01

    This paper presents an experimental and theoretical investigation of wave height and transition criterion from wavy to slug flow in horizontal air-water countercurrent stratified flow conditions. A theoretical formula for the wave height in a stratified wavy flow regime has been developed using the concept of total energy balance over a wave crest to consider the shear stress acting on the interface of two fluids. From the limiting condition of the formula for the wave height, a necessary criterion for transition from a stratified wavy flow to a slug flow has been derived. A series of experiments have been conducted changing the non-dimensional water depth and the flow rates of air in a horizontal pipe and a duct. Comparisons between the measured data and the predictions of the present theory show that the agreement is within {plus_minus}8%.

  15. Analysis of the D0 Crane Rail as a Support for a Horizontal Lifeline

    SciTech Connect (OSTI)

    Cease, H.; /Fermilab

    2000-03-02

    The D-Zero crane rail is analyzed for use as an anchor support for a one person Horizon{trademark} Horizontal Lifeline system that will span the pit area at D-Zero assembly hall. The lifeline will span 75 ft across the pit area, will be located out of the travel of the crane and above the concrete lentil wall. The crane rail is a suitable anchor for a one person Horizon TM Horizontal Lifeline system. The expected stress on the rail is 1,995 psi which has a factor of safety of 5.5 on the allowable stress. The anchor position is located 18 feet away from the concrete lentil wall and out of the travel of the overhead crane.

  16. A new approach for the determinination of horizontal wind direction fluctuations

    SciTech Connect (OSTI)

    Ibarra, J.I.

    1995-09-01

    A new method to determine horizontal wind direction fluctuations {sigma}{sub {theta}} is presented based on the hypothesis of a Gaussian distribution of wind direction that gradually moves to a circular, uniform distribution under near-calm conditions. A theoretical formulation for {sigma}{sub {theta}}, the persistence of wind and the total horizontal standard deviation {sigma} is provided and supported by experimental observations, both in a complex terrain valley site and in an open grassland spot in Spain. Comparisons of the proposed model with observations yielded a fairly good agreement, making the theoretical functions a straightforward procedure for use in atmospheric dispersion calculations. The method also provides insights on either the residual diffusivity in near-calm conditions or the maximal observable standard deviation. 13 refs., 5 figs., 1 tab.

  17. High horizontal movements in longwall gate roads controlled by cable support systems

    SciTech Connect (OSTI)

    Dolinar, D.R.; Tadolini, S.C.; Blackwell, D.V.

    1996-12-01

    Controlling coal mine roofs subjected to high-horizontal stress conditions has always been difficult and uncertain. Traditional supports such as wooden cribs and posts, concrete donut cribs, and standing supports collapse and fail when the roof and floor move horizontally as mining progresses. The former U.S. Bureau of Mines (USBM) (currently the U.S. Department of Energy (DOE)), in cooperation with Western Fuels-Utah, Incorporated, conducted research to provide an alternative for traditional secondary support systems in a 3-entry gate road system subjected to high horizontal movements. The support system used in several other coal mine operations, consisted of internal high-strength galvanized resin-grouted cable supports. The system virtually eliminates the necessity for external crib, timber, or concrete supports. The support system consisted of 2.4 m (8 ft) full-column resin grouted bolts and 4.8 m (16 ft) long cable supports installed in conjunction with wire mesh and {open_quotes}Monster-Mats.{close_quotes} Cable loading and roof deformations were monitored to evaluate the behavior of the immediate and main roofs during first and second panel extractions. Additionally, cable trusses were installed on the longwall headgate to protect the coal conveyance system from roof and pillar falls created by the formation of cutters and gutters. The test results indicated that the designed support system successfully maintained the roof during the extraction of two longwall panels and dramatically reduced the cost of secondary support. This paper describes the theory of high-horizontal roof movements, the advantages of vertical cable supports and cable trusses, and presents the roof and cable measurements made to assess the support performance during longwall retreat mining.

  18. Increased reserves through horizontal drilling in a mature waterflood, Long Beach unit, Wilmington Oil Field, California

    SciTech Connect (OSTI)

    Berman, B.H.

    1996-12-31

    Ranger Zone development started in 1965. A waterflood was initiated from the start using a staggered line-drive pattern. Infill drilling in the early 1980s and again in the 1990s revealed bypassed oil in the upper Ranger Fo sand. Detailed studies of the aerial extent of the remaining oil resulted in drilling 17 horizontal wells to recover these reserves. The Fo target sand thickness is 20 to 50 feet. Well courses are between 10 and 15 feet below the top of the Fo with lengths varying from 800 to 1,000 feet. The success of the Fo drilling program has prompted expansion of horizontal drilling into thin-bedded sand units. Well lengths have increased to between 1,500 and 1,800 feet with structural trend used to advantage. Where needed, probes are designed to penetrate the target sand before setting intermediate casing. The drilling program has been extended into bilateral horizontal completions. Geosteering with MWD/GR and a 2 MHz dual propagation resistivity tool is used to the casing point. In the completion interval, only the MWD/GR tool is used and a drillpipe conveyed E-log is run afterward to confirm expected resistivities. Despite the many well penetrations in the Ranger Zone, structural control is only fair. Accuracy of MWD data is generally low and geosteering is done by TVD log correlation. With a recovery factor of over 30 percent in Ranger West, from approximately 800 wells drilled in the last 30 years, the horizontal drilling program targeting bypassed reserves has brought new life to this mature reservoir.

  19. Increased reserves through horizontal drilling in a mature waterflood, Long Beach unit, Wilmington Oil Field, California

    SciTech Connect (OSTI)

    Berman, B.H. )

    1996-01-01

    Ranger Zone development started in 1965. A waterflood was initiated from the start using a staggered line-drive pattern. Infill drilling in the early 1980s and again in the 1990s revealed bypassed oil in the upper Ranger Fo sand. Detailed studies of the aerial extent of the remaining oil resulted in drilling 17 horizontal wells to recover these reserves. The Fo target sand thickness is 20 to 50 feet. Well courses are between 10 and 15 feet below the top of the Fo with lengths varying from 800 to 1,000 feet. The success of the Fo drilling program has prompted expansion of horizontal drilling into thin-bedded sand units. Well lengths have increased to between 1,500 and 1,800 feet with structural trend used to advantage. Where needed, probes are designed to penetrate the target sand before setting intermediate casing. The drilling program has been extended into bilateral horizontal completions. Geosteering with MWD/GR and a 2 MHz dual propagation resistivity tool is used to the casing point. In the completion interval, only the MWD/GR tool is used and a drillpipe conveyed E-log is run afterward to confirm expected resistivities. Despite the many well penetrations in the Ranger Zone, structural control is only fair. Accuracy of MWD data is generally low and geosteering is done by TVD log correlation. With a recovery factor of over 30 percent in Ranger West, from approximately 800 wells drilled in the last 30 years, the horizontal drilling program targeting bypassed reserves has brought new life to this mature reservoir.

  20. Termination for a superconducting power transmission line including a horizontal cryogenic bushing

    DOE Patents [OSTI]

    Minati, Kurt F.; Morgan, Gerry H.; McNerney, Andrew J.; Schauer, Felix

    1984-01-01

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  1. Some Results of Joint Measurements of Aerosol Extinction of Solar Radiation on Horizontal and Slant Paths

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Results of Joint Measurements of Aerosol Extinction of Solar Radiation on Horizontal and Slant Paths S. M. Sakerin, D. M. Kabanov, Yu. A. Pkhalagov, and V. N. Uzhegov Institute of Atmospheric Optics Tomsk, Russia Introduction It's a well-known fact that the contribution atmospheric aerosol makes in the total extinction of radiation in calculations and models of radiation must be considered; the quantitative measure of this contribution is the aerosol optical thickness of the atmosphere. The

  2. Horizontal cryogenic bushing for the termination of a superconducting power-transmission line

    DOE Patents [OSTI]

    Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

    1982-07-29

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  3. Large-Actuator-Number Horizontal Path Correction of Atmospheric Turbulence utilizing an Interferometric Phase Conjugate Engine

    SciTech Connect (OSTI)

    Baker, K L; Stappaerts, E A; Gavel, D; Tucker, J; Silva, D A; Wilks, S C; Olivier, S S; Olsen, J

    2004-08-25

    An adaptive optical system used to correct horizontal beam propagation paths has been demonstrated. This system utilizes an interferometric wave-front sensor and a large-actuator-number MEMS-based spatial light modulator to correct the aberrations incurred by the beam after propagation along the path. Horizontal path correction presents a severe challenge to adaptive optics systems due to the short atmospheric transverse coherence length and the high degree of scintillation incurred by laser propagation along these paths. Unlike wave-front sensors that detect phase gradients, however, the interferometric wave-front sensor measures the wrapped phase directly. Because the system operates with nearly monochromatic light and uses a segmented spatial light modulator, it does not require that the phase be unwrapped to provide a correction and it also does not require a global reconstruction of the wave-front to determine the phase as required by gradient detecting wave-front sensors. As a result, issues with branch points are eliminated. Because the atmospheric probe beam is mixed with a large amplitude reference beam, it can be made to operate in a photon noise limited regime making its performance relatively unaffected by scintillation. The MEMS-based spatial light modulator in the system contains 1024 pixels and is controlled to speeds in excess of 800 Hz, enabling its use for correction of horizontal path beam propagation. In this article results are shown of both atmospheric characterization with the system and open loop horizontal path correction of a 1.53 micron laser by the system. To date Strehl ratios of greater than 0.5 have been achieved.

  4. Method for explosive expansion toward horizontal free faces for forming an in situ oil shale retort

    DOE Patents [OSTI]

    Ricketts, Thomas E.

    1980-01-01

    Formation is excavated from within a retort site in formation containing oil shale for forming a plurality of vertically spaced apart voids extending horizontally across different levels of the retort site, leaving a separate zone of unfragmented formation between each pair of adjacent voids. Explosive is placed in each zone, and such explosive is detonated in a single round for forming an in situ retort containing a fragmented permeable mass of formation particles containing oil shale. The same amount of formation is explosively expanded upwardly and downwardly toward each void. A horizontal void excavated at a production level has a smaller horizontal cross-sectional area than a void excavated at a lower level of the retort site immediately above the production level void. Explosive in a first group of vertical blast holes is detonated for explosively expanding formation downwardly toward the lower void, and explosive in a second group of vertical blast holes is detonated in the same round for explosively expanding formation upwardly toward the lower void and downwardly toward the production level void for forming a generally T-shaped bottom of the fragmented mass.

  5. Measurement and modeling of solar irradiance components on horizontal and tilted planes

    SciTech Connect (OSTI)

    Padovan, Andrea; Col, Davide del

    2010-12-15

    In this work new measurements of global and diffuse solar irradiance on the horizontal plane and global irradiance on planes tilted at 20 and 30 oriented due South and at 45 and 65 oriented due East are used to discuss the modeling of solar radiation. Irradiance data are collected in Padova (45.4 N, 11.9 E, 12 m above sea level), Italy. Some diffuse fraction correlations have been selected to model the hourly diffuse radiation on the horizontal plane. The comparison with the present experimental data shows that their prediction accuracy strongly depends on the sky characteristics. The hourly irradiance measurements taken on the tilted planes are compared with the estimations given by one isotropic and three anisotropic transposition models. The use of an anisotropic model, based on a physical description of the diffuse radiation, provides a much better accuracy, especially when measurements of the diffuse irradiance on the horizontal plane are not available and thus transposition models have to be applied in combination with a diffuse fraction correlation. This is particularly significant for the planes oriented away from South. (author)

  6. Regional geologic characteristics relevant to horizontal drilling, Woodford Shale, Anadarko basin, Oklahoma

    SciTech Connect (OSTI)

    Hester, T.C.; Schmoker, J.W. )

    1991-06-01

    Horizontal drilling in the Late Devonian-Early Mississippian Bakken Formation of the Williston basin has spurred new interest in other black shales as primary hydrocarbon reservoirs. The Late Devonian-Early Mississippian Woodford Shale, which is similar in some respects to the Bakken Formation, is a major source of oil and gas in the Anadarko basin of Oklahoma and could prove to be a significant reservoir rock as well. The three regional geologic characteristics of the Woodford discussed here are of likely importance to horizontal drilling programs, although direct relations to drilling strategy cannot be developed until empirical data from horizontal tests become available. First, the Woodford Shale is composed of three distinct depositional units (the upper, middle, and lower informal members) with different physical and geochemical properties. Second, a paleotopographic high that was rising before and during Woodford deposition divided the Woodford Shale into northeast and southwest depocenters. Third, Woodford depositional patterns are overprinted by thermal-maturity trends shaped primarily by differential burial of the Woodford during Pennsylvanian and Permian time. The Woodford Shale northeast of the forebulge is generally immature to marginally mature, whereas its thermal maturity southwest of the forebulge ranges from mature to postmature with respect to oil generation. A formation resistivity of about 35 ohm-m approximates the updip limit of oil-saturated Woodford Shale from which free oil might be produced from fracture systems.

  7. Integrated approach towards the application of horizontal wells to improve waterflooding performance. Annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1995-05-01

    This annual report describes the progress during the second year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvial-dominated deltaic deposits. The project involves an integrated approach to characterize the reservoir followed by the drilling of horizontal injection wells to improve production performance. The type of data we have integrated include cross bore hole seismic surveys, geological interpretation based on logs and cores, and engineering information. This report covers the second phase of the project which includes a detailed reservoir description of the field by integrating all the available information, followed by flow simulation of the Self Unit under various operating conditions. Based on an examination of the various operating parameters, we observed that the best possible solution to improve the Self Unit performance is to recomplete and stimulate most of the wells followed by an increase in the water injection rate. Drilling of horizontal injection well, although helpful in improving the performance, was not found to be economically feasible. The proposed reservoir management plan will be implemented shortly.

  8. Does surface roughness amplify wetting?

    SciTech Connect (OSTI)

    MalijevskĂ˝, Alexandr

    2014-11-14

    Any solid surface is intrinsically rough on the microscopic scale. In this paper, we study the effect of this roughness on the wetting properties of hydrophilic substrates. Macroscopic arguments, such as those leading to the well-known Wenzel's law, predict that surface roughness should amplify the wetting properties of such adsorbents. We use a fundamental measure density functional theory to demonstrate the opposite effect from roughness for microscopically corrugated surfaces, i.e., wetting is hindered. Based on three independent analyses we show that microscopic surface corrugation increases the wetting temperature or even makes the surface hydrophobic. Since for macroscopically corrugated surfaces the solid texture does indeed amplify wetting there must exist a crossover between two length-scale regimes that are distinguished by opposite response on surface roughening. This demonstrates how deceptive can be efforts to extend the thermodynamical laws beyond their macroscopic territory.

  9. DESIGN AND IMPLEMENTATION OF A CO2 FLOOD UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL INJECTION WELLS IN A SHALLOW SHELF CARBONATE APPROACHING WATERFLOOD DEPLETION

    SciTech Connect (OSTI)

    K.J. Harpole; Ed G. Durrett; Susan Snow; J.S. Bles; Carlon Robertson; C.D. Caldwell; D.J. Harms; R.L. King; B.A. Baldwin; D. Wegener; M. Navarrette

    2002-09-01

    for the project as it limited CO{sub 2} injectivity. To reduce voidage balance, and reservoir pressure, a disposal well was therefore drilled. Several injection surveys indicated the CO{sub 2} injection wells had severe conformance issues. After close monitoring of the project to the end of 1999, it was evident the project would not recover the anticipated tertiary reserves. The main reasons for under-performance were poor in zone CO{sub 2} injection into the upper San Andres layers, poorer offtake rates from newly drilled replacement wells and a higher than required reservoir pressure. After discussion internally within Phillips, externally with the Department of Energy (DOE) and SCU partners, a redevelopment of South Cowden was agreed upon to commence in year 2000. The redevelopment essentially abandoned the original development for Budget Phase II in favor of a revised approach. This involved conformance techniques to resolve out of zone CO{sub 2} injection and use of horizontal wells to improve in zone injectivity and productivity. A phased approach was used to ensure short radius lateral drilling could be implemented effectively at South Cowden. This involved monitoring drilling operations and then production response to determine if larger investments during the second phase were justified. Redevelopment Phase 1 was completed in May 2000. It was deemed a success in regard to finding suitable/cost-effective technology for drilling horizontal laterals and finding a technique that could sustain long-term productivity from the upper layers of the San Andres reservoir. Four existing vertical producing wells were isolated from their existing completions and sidetracked with horizontal laterals into the upper layers of the San Andres. Overall average offtake rates for the four wells increased by a factor of 12 during the first four months after completion of Phase 1. Phase 2 of the redevelopment focused on current CO{sub 2} vertical injection wells. Techniques were

  10. Superhydrophobic surfaces

    DOE Patents [OSTI]

    Wang, Evelyn N; McCarthy, Matthew; Enright, Ryan; Culver, James N; Gerasopoulos, Konstantinos; Ghodssi, Reza

    2015-03-24

    Surfaces having a hierarchical structure--having features of both microscale and nanoscale dimensions--can exhibit superhydrophobic properties and advantageous condensation and heat transfer properties. The hierarchical surfaces can be fabricated using biological nanostructures, such as viruses as a self-assembled nanoscale template.

  11. Laboratory and numerical evaluation of borehole methods for subsurface horizontal flow characterization.

    SciTech Connect (OSTI)

    Pedler, William H. (Radon Abatement Systems, Inc., Golden, CO); Jepsen, Richard Alan (Sandia National Laboratories, Carlsbad, NM)

    2003-08-01

    The requirement to accurately measure subsurface groundwater flow at contaminated sites, as part of a time and cost effective remediation program, has spawned a variety of flow evaluation technologies. Validation of the accuracy and knowledge regarding the limitations of these technologies are critical for data quality and application confidence. Leading the way in the effort to validate and better understand these methodologies, the US Army Environmental Center has funded a multi-year program to compare and evaluate all viable horizontal flow measurement technologies. This multi-year program has included a field comparison phase, an application of selected methods as part of an integrated site characterization program phase, and most recently, a laboratory and numerical simulator phase. As part of this most recent phase, numerical modeling predictions and laboratory measurements were made in a simulated fracture borehole set-up within a controlled flow simulator. The scanning colloidal borescope flowmeter (SCBFM) and advanced hydrophysical logging (NxHpL{trademark}) tool were used to measure velocities and flow rate in a simulated fractured borehole in the flow simulator. Particle tracking and mass flux measurements were observed and recorded under a range of flow conditions in the simulator. Numerical models were developed to aid in the design of the flow simulator and predict the flow conditions inside the borehole. Results demonstrated that the flow simulator allowed for predictable, easily controlled, and stable flow rates both inside and outside the well. The measurement tools agreed well with each other over a wide range of flow conditions. The model results demonstrate that the Scanning Colloidal Borescope did not interfere with the flow in the borehole in any of the tests. The model is capable of predicting flow conditions and agreed well with the measurements and observations in the flow simulator and borehole. Both laboratory and model results showed a

  12. Existence domains of dust-acoustic solitons and supersolitons

    SciTech Connect (OSTI)

    Maharaj, S. K.; Bharuthram, R.; Singh, S. V.; Lakhina, G. S.

    2013-08-15

    Using the Sagdeev potential method, the existence of large amplitude dust-acoustic solitons and supersolitons is investigated in a plasma comprising cold negative dust, adiabatic positive dust, Boltzmann electrons, and non-thermal ions. This model supports the existence of positive potential supersolitons in a certain region in parameter space in addition to regular solitons having negative and positive potentials. The lower Mach number limit for supersolitons coincides with the occurrence of double layers whereas the upper limit is imposed by the constraint that the adiabatic positive dust number density must remain real valued. The upper Mach number limits for negative potential (positive potential) solitons coincide with limiting values of the negative (positive) potential for which the negative (positive) dust number density is real valued. Alternatively, the existence of positive potential solitons can terminate when positive potential double layers occur.

  13. FMDP reactor alternative summary report. Volume 1 - existing LWR alternative

    SciTech Connect (OSTI)

    Greene, S.R.; Bevard, B.B.

    1996-10-07

    Significant quantities of weapons-usable fissile materials [primarily plutonium and highly enriched uranium (HEU)] are becoming surplus to national defense needs in both the United States and Russia. These stocks of fissile materials pose significant dangers to national and international security. The dangers exist not only in the potential proliferation of nuclear weapons but also in the potential for environmental, safety, and health (ES&H) consequences if surplus fissile materials are not properly managed. This document summarizes the results of analysis concerned with existing light water reactor plutonium disposition alternatives.

  14. Thermal and moisture problems in existing basements create a...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... If the saturation ratio > 25%, there is visible evidence of current or past bulk water leakage, or the wall surface is unft for an adhered WSP, a nonadhered WSP must be used. These ...

  15. Surface Soil

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Surface Soil Surface Soil We compare local soil samples with samples collected from northern New Mexico locations that are beyond the range of potential influence from normal Laboratory operations. April 12, 2012 Farm soil sampling Two LANL environmental field team members take soil samples from a farm. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Measurements are compared to samples from the regional sites and

  16. Building America Technlogy Solutions for New and Existing Homes: Interior

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Foundation Insulation Upgrade - Minneapolis Residence (Fact Sheet) | Department of Energy Minneapolis Residence (Fact Sheet) Building America Technlogy Solutions for New and Existing Homes: Interior Foundation Insulation Upgrade - Minneapolis Residence (Fact Sheet) This interior foundation project employed several techniques to improve performance and mitigate moisture issues: dimple mat; spray polyurethane foam insulation; moisture and thermal management systems for the floor; and paperless

  17. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Innovative Retrofit Foundation Insulation Strategies, Minneapolis, Minnesota | Department of Energy Innovative Retrofit Foundation Insulation Strategies, Minneapolis, Minnesota Building America Technology Solutions for New and Existing Homes: Innovative Retrofit Foundation Insulation Strategies, Minneapolis, Minnesota In this project, the NorthernSTAR Building America Partnership evaluated a retrofit insulation strategy for foundations that is designed for use with open-core concrete block

  18. Building America Technology Solutions for New and Existing Homes: Balancing

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hydronic Systems in Multifamily Buildings, Chicago, Illinois (Fact Sheet) | Department of Energy Balancing Hydronic Systems in Multifamily Buildings, Chicago, Illinois (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Balancing Hydronic Systems in Multifamily Buildings, Chicago, Illinois (Fact Sheet) In multifamily building hydronic systems, temperature imbalance may be caused by undersized piping, improperly adjusted balancing valves, inefficient water

  19. Building America Whole-House Solutions for Existing Homes: Multifamily

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Individual Heating and Ventilation Systems | Department of Energy Multifamily Individual Heating and Ventilation Systems Building America Whole-House Solutions for Existing Homes: Multifamily Individual Heating and Ventilation Systems The conversion of an older Massachusetts building into condominiums illustrates a safe, durable, and cost-effective solution for heating and ventilation systems in multifamily buildings. Multifamily Individual Heating and Ventilation Systems - Lawrence,

  20. Horizontal Wells to Enhance Production in the Bottle Rock Field - Final Report - 09/30/2000 - 02/01/2001

    SciTech Connect (OSTI)

    Cohen, J. H.

    2001-02-26

    This report describes the work that was done to prepare the Phase II proposal for an enhanced geothermal system based on the use of horizontal well to increase production of reservoir fluids from geothermal wells.

  1. Conversion of existing tanker to North Sea FPSO use

    SciTech Connect (OSTI)

    Voorst, O. van; Baan, J. de; Loenhout, A. van; Krekel, M.

    1995-12-01

    The use of existing tankers as a permanently moored floating storage off loading (FSO) or floating production storage and off loading (FPSO) has been wide spread in the oil industry ever since tankers were used for storage. However, the application of an existing tanker for North Sea FPSO use meeting the stringent demands of the regulatory bodies and the harsh environment of the North Sea has withheld operators from using existing tankers in the North Sea. The acceptance of FPSO technology in the North Sea and the proven ability to moor a tanker with a passive mooring system in a harsh environment has opened the avenue to use existing tankers for use as an FPSO in the North Sea. This is also driven by the search for cost effective solutions for field development plans in order to make marginal fields economically exploitable. The potential reuse of an FPSO on a different location also makes the depreciation period of the FPSO vessel life related instead of field life related. Many issues related to the use of an FPSO in the North Sea are currently subject of papers at various forums. This paper, however, only addresses three crucial areas: (1) the criteria for selection of an existing tanker; (2) the use of a passive mooring system; (3) the fatigue assessment and required modifications. The paper is based on experiences gained during the engineering, design and construction phase of the UISGE GORM, the FPSO, which Bluewater will initially use for Amerada Hess Limited`s Fife Field on the UK continental shelf and confirms that the conversion of a suitable tanker to North Sea FPSO use is a technically flexible and an economically attractive solution.

  2. Electrochemically induced nuclear fusion of deuterium; The existence of negatively charged deuteride ions

    SciTech Connect (OSTI)

    Jorne, J. . Dept. of Chemical Engineering)

    1990-11-01

    In this paper cold fusion of deuterium by electrolysis of heavy water onto a palladium (or titanium) cathode is reported. Contrary to the assumption of Fleishmann and Pons that electrochemically compressed D{sup +} exists inside the palladium cathode, the observations of Jones et al. can be partially explained by the simultaneous presence of deuteride D{sup {minus}} and the highly mobile positive deuterium ion D{sup +}. The opposite charges reduce the intranuclear distance and enhance the tunneling fusion rate. Furthermore, alloying of lithium with palladium can stabilize a negatively charged deuteride ion due to the salinelike character of lithium deuteride. The enormous pressure (or fugacity), achieved by the applied electrochemical potential (10{sup 30} atm), is a virtual pressure that would have existed in equilibrium with palladium deuteride (PdD{sub x}). It is speculated that nuclear fusion occurs at the surface, and the PdD{sub x} serves as a reservoir for the supply of deuteride ions.

  3. Rectified motion of a Bose-Einstein condensate in a horizontally vibrating shallow optical lattice

    SciTech Connect (OSTI)

    Azizi, Y.; Valizadeh, A.

    2011-01-15

    We consider a Bose-Einstein condensate, described by the Gross-Pitaevskii equation, in a horizontally vibrating shallow optical lattice. We study the dynamics of a bright soliton using the collective coordinate approximation. We show that depending on the parameters, amplitude, and frequency of the vibration of the lattice, the phase space of the equation of motion for the soliton center of mass shows multistability. In the frequency locked regions, in which the soliton has a nonzero average velocity determined by the external frequency, the motion is quasiperiodic, and between the locked regions the soliton moves chaotically.

  4. Security camera resolution measurements: Horizontal TV lines versus modulation transfer function measurements.

    SciTech Connect (OSTI)

    Birch, Gabriel Carisle; Griffin, John Clark

    2015-01-01

    The horizontal television lines (HTVL) metric has been the primary quantity used by division 6000 related to camera resolution for high consequence security systems. This document shows HTVL measurements are fundamen- tally insufficient as a metric to determine camera resolution, and propose a quantitative, standards based methodology by measuring the camera system modulation transfer function (MTF), the most common and accepted metric of res- olution in the optical science community. Because HTVL calculations are easily misinterpreted or poorly defined, we present several scenarios in which HTVL is frequently reported, and discuss their problems. The MTF metric is discussed, and scenarios are presented with calculations showing the application of such a metric.

  5. Controlled waste-oil biodegradation at existing drying beds

    SciTech Connect (OSTI)

    Hary, L.F.

    1982-01-01

    A feasibility study at the Portsmouth Uranium Enrichment Facility to determine if sludge drying beds at a sewage treatment plant could be used as controlled waste oil biodegradation plots has been completed. A greenhouse-like enclosure would be constructed over three 9.1 meter by 21.3 meter beds to allow for year-round use, and any waste oil runoff would be collected by existing leachate piping. It has been determined that this proposed facility could dispose of existing radioactive waste oil generation (7200 liters/year) from the Gaseous Diffusion Plant (GDP); however, it would be inadequate to handle radioactive waste oils from the new Gas Centrifuge Enrichment Plant (GCEP) as well. The study reviewed nuclear criticality constraints, biodegradation technology, and the capital cost for an enclosed biodegradation facility.

  6. Methodology for Augmenting Existing Paths with Additional Parallel Transects

    SciTech Connect (OSTI)

    Wilson, John E.

    2013-09-30

    Visual Sample Plan (VSP) is sample planning software that is used, among other purposes, to plan transect sampling paths to detect areas that were potentially used for munition training. This module was developed for application on a large site where existing roads and trails were to be used as primary sampling paths. Gap areas between these primary paths needed to found and covered with parallel transect paths. These gap areas represent areas on the site that are more than a specified distance from a primary path. These added parallel paths needed to optionally be connected together into a single path—the shortest path possible. The paths also needed to optionally be attached to existing primary paths, again with the shortest possible path. Finally, the process must be repeatable and predictable so that the same inputs (primary paths, specified distance, and path options) will result in the same set of new paths every time. This methodology was developed to meet those specifications.

  7. Building America Efficient Solutions for Existing Homes Case Study: Deep

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Retrofit of 1910 House, Portland, Oregon | Department of Energy Deep Energy Retrofit of 1910 House, Portland, Oregon Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit of 1910 House, Portland, Oregon This case study lists project information, cost and energy efficiency performance data, energy efficiency measures and lessons learned for a 100-year-old home in Portland, Oregon, audited by Pacific Northwest National Laboratory for a deep energy

  8. Building America Efficient Solutions for Existing Homes: Case Study: Build

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    San Antonio Green, San Antonio, Texas | Department of Energy Homes: Case Study: Build San Antonio Green, San Antonio, Texas Building America Efficient Solutions for Existing Homes: Case Study: Build San Antonio Green, San Antonio, Texas PNNL, FSEC, and CalcsPlus provided technical assistance to Build San Antonio Green on three deep energy retrofits. For this gut rehab they replaced the old roof with a steeper roof and replaced drywall while adding insulation, new HVAC, sealed ducts, transfer

  9. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Calculating Design Heating Loads for Superinsulated Buildings | Department of Energy Calculating Design Heating Loads for Superinsulated Buildings Building America Technology Solutions for New and Existing Homes: Calculating Design Heating Loads for Superinsulated Buildings During the winter of 2013-2014, the Consortium for Advanced Residential Buildings monitored the energy use of three homes in the EcoVillage community in climate zone 6 to evaluate the accuracy of two different mechanical

  10. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana | Department of Energy the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana Building America Technology Solutions for New and Existing Homes: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana In this project,

  11. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes: Phase 2, Southeastern United States | Department of Energy Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes: Phase 2, Southeastern United States Building America Technology Solutions for New and Existing Homes: Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes: Phase 2, Southeastern United States In this project, the Building America Partnership for Improved Residential

  12. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet) | Department of Energy Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet) For a 6-month period, the Building America team Consortium for Advanced Residential Buildings monitored the

  13. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Replacement, Variable-Speed Motors for Furnaces, Syracuse, New York, (Fact Sheet) | Department of Energy Replacement, Variable-Speed Motors for Furnaces, Syracuse, New York, (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Replacement, Variable-Speed Motors for Furnaces, Syracuse, New York, (Fact Sheet) In this project, the CARB team tested the Concept 3 replacement motors for residential furnaces in eight homes in and near Syracuse, New York, to test how these

  14. Building America Technology Solutions for New and Existing Homes: Advanced

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Controls Improve Performance of Combination Space- and Water-Heating Systems | Department of Energy Controls Improve Performance of Combination Space- and Water-Heating Systems Building America Technology Solutions for New and Existing Homes: Advanced Controls Improve Performance of Combination Space- and Water-Heating Systems In this project, NorthernSTAR Building America Partnership team demonstrated improved controls have the potential to reduce complexity of combination systems and boost

  15. Building America Technology Solutions for New and Existing Homes: Apartment

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Compartmentalization with an Aerosol-Based Sealing Process | Department of Energy Apartment Compartmentalization with an Aerosol-Based Sealing Process Building America Technology Solutions for New and Existing Homes: Apartment Compartmentalization with an Aerosol-Based Sealing Process In this study, the Consortium for Advanced Residential Buildings team demonstrated the automated air sealing and compartmentalization of buildings through the use of an aerosolized sealant developed by the

  16. Building America Technology Solutions for New and Existing Homes: Buried

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Encapsulated Ducts, Jacksonville, Florida (Fact Sheet) | Department of Energy Buried and Encapsulated Ducts, Jacksonville, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Buried and Encapsulated Ducts, Jacksonville, Florida (Fact Sheet) In a study of three single-story houses in Florida, the Building America research team Consortium for Advanced Residential Buildings (CARB) investigated the strategy of using buried and/or encapsulated ducts to

  17. Building America Technology Solutions for New and Existing Homes: Capillary

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Break Beneath a Slab: Polyethylene Sheeting over Aggregate, Southwestern Pennsylvania (Fact Sheet) | Department of Energy Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate, Southwestern Pennsylvania (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate, Southwestern Pennsylvania (Fact Sheet) In this project, Building America team IBACOS worked with a builder of single- and

  18. Building America Technology Solutions for New and Existing Homes: Cladding

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Attachment Over Thick Exterior Insulating Sheathing (Fact Sheet) | Department of Energy Cladding Attachment Over Thick Exterior Insulating Sheathing (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Cladding Attachment Over Thick Exterior Insulating Sheathing (Fact Sheet) In this project, researchers from Building Science Corporation investigated issues to better understand the mechanics behind the addition of insulation to the exterior of buildings to increase

  19. Building America Technology Solutions for New and Existing Homes: Duct

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sealing Using Injected Spray Sealant | Department of Energy Sealing Using Injected Spray Sealant Building America Technology Solutions for New and Existing Homes: Duct Sealing Using Injected Spray Sealant In this project, the Raleigh Housing Authority worked with Building America team, the Advanced Residential Integrated Solutions Collaborative, to determine the most cost-effective ways to reduce duct leakage in its low-rise housing units. Ducts Sealing Using Injected Spray Sealant (701.91

  20. Building America Technology Solutions for New and Existing Homes: Improving

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) | Department of Energy Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system,

  1. Building America Technology Solutions for New and Existing Homes: Measure

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Guideline: Guidance on Taped Insulating Sheathing Drainage Planes | Department of Energy Measure Guideline: Guidance on Taped Insulating Sheathing Drainage Planes Building America Technology Solutions for New and Existing Homes: Measure Guideline: Guidance on Taped Insulating Sheathing Drainage Planes This project by Building Science Corporation focuses on the field implementation of taped board insulation as the drainage plane in both new and retrofit residential applications. Guidance on

  2. Building America Technology Solutions for New and Existing Homes: Project

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Overcoat: Airtightness Strategies and Impacts for 1 1/2-Story Homes, Minneapolis, Minnesota | Department of Energy Project Overcoat: Airtightness Strategies and Impacts for 1 1/2-Story Homes, Minneapolis, Minnesota Building America Technology Solutions for New and Existing Homes: Project Overcoat: Airtightness Strategies and Impacts for 1 1/2-Story Homes, Minneapolis, Minnesota In this project, the NorthernSTAR Building America Partnership team studied the effectiveness of the External

  3. Building America Technology Solutions for New and Existing Homes: Raised

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ceiling Interior Duct System, New Smyrna, Florida (Fact Sheet) | Department of Energy Raised Ceiling Interior Duct System, New Smyrna, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Raised Ceiling Interior Duct System, New Smyrna, Florida (Fact Sheet) This project describes a Habitat for Humanity builder's efforts to construct a home to new DOE Zero Energy Ready Home standards, and use a fur-up or raised ceiling chase. Raised Ceiling Interior Duct

  4. Building America Technology Solutions for New and Existing Homes: Replacing

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Resistance Heating with Mini-Split Heat Pumps | Department of Energy Replacing Resistance Heating with Mini-Split Heat Pumps Building America Technology Solutions for New and Existing Homes: Replacing Resistance Heating with Mini-Split Heat Pumps In this project, the Advanced Residential Integrated Solutions team investigated the suitability of mini-split heat pumps for multifamily retrofits. Replacing Resistance Heating with Mini-Split Heat Pumps (638.84 KB) More Documents &

  5. Building America Technology Solutions for New and Existing Homes: Retrofit

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integrated Space and Water Heating-Field Assessment | Department of Energy Retrofit Integrated Space and Water Heating-Field Assessment Building America Technology Solutions for New and Existing Homes: Retrofit Integrated Space and Water Heating-Field Assessment In this project, the NorthernSTAR team analyzed combined (combi) condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water and forced air space heating. Retrofit Integrated Space and

  6. Building America Technology Solutions for New and Existing Homes: Stud

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Walls With Continuous Exterior Insulation for Factory Built Housing (Fact Sheet) | Department of Energy Stud Walls With Continuous Exterior Insulation for Factory Built Housing (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Stud Walls With Continuous Exterior Insulation for Factory Built Housing (Fact Sheet) This profile describes the Advanced Envelope Research project, managed by ARIES Collaborative, which will provide factory homebuilders with high

  7. Preliminary Plan for Retrospective Analysis of Existing Rules

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Preliminary Plan for Retrospective Analysis of Existing Rules April 29, 2011 Draft Executive Summary On January 18, 2011, the President issued Executive Order 13563, ‗‗Improving Regulation and Regulatory Review,'' to ensure that Federal regulations seek more affordable, less intrusive means to achieve policy goals, and that agencies give careful consideration to the benefits and costs of those regulations. Executive Order 13563 recognizes the importance of maintaining a consistent culture of

  8. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Optimizing Hydronic System Performance in Residential Applications, Ithaca, New York (Fact Sheet) | Department of Energy Optimizing Hydronic System Performance in Residential Applications, Ithaca, New York (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Optimizing Hydronic System Performance in Residential Applications, Ithaca, New York (Fact Sheet) In this project, researchers from Building America team Consortium for Advanced Residential Buildings worked with

  9. Building America Technology Solutions for New and Existing Homes: Cladding

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Attachment Over Mineral Fiber Insulation Board - Ontario, Canada | Department of Energy Cladding Attachment Over Mineral Fiber Insulation Board - Ontario, Canada Building America Technology Solutions for New and Existing Homes: Cladding Attachment Over Mineral Fiber Insulation Board - Ontario, Canada This case study describes a high performance enclosure retrofit package that uses mineral fiber insulation board and describes retrofit assembly and details for wood frame roof and walls and for

  10. Building America Whole-House Solutions for Existing Homes: Exterior

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Insulation Pre- and Post-Retrofit, Syracuse, New York | Department of Energy Exterior Insulation Pre- and Post-Retrofit, Syracuse, New York Building America Whole-House Solutions for Existing Homes: Exterior Insulation Pre- and Post-Retrofit, Syracuse, New York IBACOS, in collaboration with GreenHomes America, Inc., was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions for enclosure upgrades. This case study describes

  11. Building America Whole-House Solutions for Existing Homes: Pilot

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Demonstration of Phased Retrofits in Florida Homes - Central and South Florida (Fact Sheet) | Department of Energy Pilot Demonstration of Phased Retrofits in Florida Homes - Central and South Florida (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Pilot Demonstration of Phased Retrofits in Florida Homes - Central and South Florida (Fact Sheet) In this pilot project, the Florida Solar Energy Center and Florida Power and Light are collaborating to retrofit a large

  12. Stopbands in the existence domains of acoustic solitons

    SciTech Connect (OSTI)

    Nsengiyumva, F. Hellberg, M. A. Mace, R. L.; Verheest, F.

    2014-10-15

    A fully nonlinear Sagdeev pseudopotential approach is used to study the existence domain of fast mode ion-acoustic solitons in a three-species plasma composed of cold and warm adiabatic positive ion species and Boltzmann electrons. It is shown that for appropriate values of the cold-to-warm ion charge-to-mass ratio, ÎĽ, and the effective warm ion-to-electron temperature ratio, Ď„, there is a range in cold to warm ion charge density ratio, f, over which a stopband in soliton speed exists. Solitons do not propagate in the stopband, although they can occur for both higher and lower speeds. The stopbands are associated with a limiting curve of the existence domain that is double-valued in speed for a range of values of f. Analytical estimates of the upper and lower limits of Ď„ and ÎĽ that support stopbands are found. It is suggested that, inter alia, the analysis should be applicable to the solar wind plasma.

  13. Research update, existing buildings research, 1989--1991

    SciTech Connect (OSTI)

    MacDonald, J.M.; Ternes, M.P.; Mixon, W.R.; Sharp, T.R.; Kolb, J.O.; Wilkes, K.E. ); Diamond, R.C. ); Judkoff, R. ); Mazzucchi, R.P. )

    1993-02-01

    This Research Update presents the status of the Existing Buildings Research program of the Office of Building Technologies of the US Department of Energy for the period 1989-199 1. This program covers research on energy efficiency improvements for the residential and commercial buildings in this country. ne Existing Buildings Research program has contributed to significant improvements in energy efficiency of existing buildings by development of improvements to retrofit technologies, by coordinating and conducting research studies on the use of energy efficiency technologies (to reduce barriers and increase use), and by continually evaluating changes in technologies that could improve and maintain buildings energy efficiency. If the energy efficiency of the buildings sector in this country is to be dramatically improved over the next 30 years, we must improve the use of energy efficiency technologies. Improved delivery of measures, improved understanding of how buildings actually perform in the field, and methods for improving operations and maintenance of buildings and energy equipment are all examples of ways to improve the deployment (transfer) of technologies. Much has been learned about technology deployment in buildings in the first five years of the program, and our future plans will be directed at continuing the improvements and making a real contribution to the energy efficiency future of the United States.

  14. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary and Crystalline Formations

    SciTech Connect (OSTI)

    Bruno, Mike S.; Detwiler, Russell L.; Lao, Kang; Serajian, Vahid; Elkhoury, Jean; Diessl, Julia; White, Nicky

    2012-12-13

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. The primary objectives of this DOE research effort are to develop and document optimum design configurations and operating practices to produce geothermal power from hot permeable sedimentary and crystalline formations using advanced horizontal well recirculation systems. During Phase I of this research project Terralog Technologies USA and The University of California, Irvine (UCI), have completed preliminary investigations and documentation of advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. We have also identified significant geologic resources appropriate for application of such technology. The main challenge for such recirculation systems is to optimize both the design configuration and the operating practices for cost-effective geothermal energy recovery. These will be strongly influenced by sedimentary formation properties, including thickness and dip, temperature, thermal conductivity, heat capacity, permeability, and porosity; and by working fluid properties.

  15. Integrated approach towards the Application of Horizontal Wells to Improve Waterflooding Performance. Annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1994-06-01

    This annual report describes the progress during the first year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvial-dominated deltaic deposits. The project involves an integrated approach to characterize the reservoir followed by drilling of horizontal injection wells to improve production performance. The type of data the authors intend to integrate includes cross bore hole seismic surveys, geological interpretation based on logs and cores, and engineering information. This report covers the first phase of the project which includes a detailed reservoir description of the field based on the available information, followed by flow simulation of the Self Unit to compare the simulated result with the historical performance. Based on the simulated results, a vertical test well was drilled to validate this reservoir description. The well will also be used as a source well for a cross bore hole seismic survey. This report discusses the related geophysical, geological and engineering activities leading to the drilling of the vertical test well. The validation phase and the collection of the cross bore hole survey has just begun, and the results will be presented in the next annual report.

  16. Horizontal gene transfer and the evolution of transcriptionalregulation in Escherichia coli

    SciTech Connect (OSTI)

    Price, Morgan N.; Dehal, Paramvir S.; Arkin, Adam P.

    2007-12-20

    Background: Most bacterial genes were acquired by horizontalgene transfer from other bacteria instead of being inherited bycontinuous vertical descent from an ancient ancestor}. To understand howthe regulation of these {acquired} genes evolved, we examined theevolutionary histories of transcription factors and of regulatoryinteractions from the model bacterium Escherichia coli K12. Results:Although most transcription factors have paralogs, these usually arose byhorizontal gene transfer rather than by duplication within the E. colilineage, as previously believed. In general, most neighbor regulators --regulators that are adjacent to genes that they regulate -- were acquiredby horizontal gene transfer, while most global regulators evolvedvertically within the gamma-Proteobacteria. Neighbor regulators wereoften acquired together with the adjacent operon that they regulate, sothe proximity might be maintained by repeated transfers (like "selfishoperons"). Many of the as-yet-uncharacterized (putative) regulators havealso been acquired together with adjacent genes, so we predict that theseare neighbor regulators as well. When we analyzed the histories ofregulatory interactions, we found that the evolution of regulation byduplication was rare, and surprisingly, many of the regulatoryinteractions that are shared between paralogs result from convergentevolution. Another surprise was that horizontally transferred genes aremore likely than other genes to be regulated by multiple regulators, andmost of this complex regulation probably evolved after the transfer.Conclusions: Our results highlight the rapid evolution of niche-specificgene regulation in bacteria.

  17. HETEROGENEOUS SHALLOW-SHELF CARBONATE BUILDUPS IN THE PARADOX BASIN, UTAH AND COLORADO: TARGETS FOR INCREASED OIL PRODUCTION AND RESERVES USING HORIZONTAL DRILLING TECHNIQUES

    SciTech Connect (OSTI)

    David E. Eby; Thomas C. Chidsey, Jr.; Kevin McClure; Craig D. Morgan

    2003-07-01

    The Paradox Basin of Utah, Colorado, Arizona, and New Mexico contains nearly 100 small oil fields producing from carbonate buildups within the Pennsylvanian (Desmoinesian) Paradox Formation. These fields typically have one to 10 wells with primary production ranging from 700,000 to 2,000,000 barrels (111,300-318,000 m{sup 3}) of oil per field and a 15 to 20 percent recovery rate. At least 200 million barrels (31.8 million m{sup 3}) of oil will not be recovered from these small fields because of inefficient recovery practices and undrained heterogeneous reservoirs. Several fields in southeastern Utah and southwestern Colorado are being evaluated as candidates for horizontal drilling and enhanced oil recovery from existing vertical wells based upon geological characterization and reservoir modeling case studies. Geological characterization on a local scale is focused on reservoir heterogeneity, quality, and lateral continuity, as well as possible reservoir compartmentalization, within these fields. This study utilizes representative cores, geophysical logs, and thin sections to characterize and grade each field's potential for drilling horizontal laterals from existing development wells. The results of these studies can be applied to similar fields elsewhere in the Paradox Basin and the Rocky Mountain region, the Michigan and Illinois Basins, and the Midcontinent region. This report covers research activities for the second half of the third project year (October 6, 2002, through April 5, 2003). The primary work included describing and mapping regional facies of the upper Ismay and lower Desert Creek zones of the Paradox Formation in the Blanding sub-basin, Utah. Regional cross sections show the development of ''clean carbonate'' packages that contain all of the productive reservoir facies. These clean carbonates abruptly change laterally into thick anhydrite packages that filled several small intra-shelf basins in the upper Ismay zone. Examination of upper Ismay

  18. Viability of Existing INL Facilities for Dry Storage Cask Handling

    SciTech Connect (OSTI)

    Bohachek, Randy; Wallace, Bruce; Winston, Phil; Marschman, Steve

    2013-04-30

    This report evaluates existing capabilities at the INL to determine if a practical and cost effective method could be developed for opening and handling full-sized dry storage casks. The Idaho Nuclear Technology and Engineering Center (INTEC) CPP-603, Irradiated Spent Fuel Storage Facility, provides the infrastructure to support handling and examining casks and their contents. Based on a reasonable set of assumptions, it is possible to receive, open, inspect, remove samples, close, and reseal large bolted-lid dry storage casks at the INL. The capability can also be used to open and inspect casks that were last examined at the TAN Hot Shop over ten years ago. The Castor V/21 and REA-2023 casks can provide additional confirmatory information regarding the extended performance of low-burnup (<45 GWD/MTU) used nuclear fuel. Once a dry storage cask is opened inside CPP-603, used fuel retrieved from the cask can be packaged in a shipping cask, and sent to a laboratory for testing. Testing at the INL’s Materials and Fuels Complex (MFC) can occur starting with shipment of samples from CPP-603 over an on-site road, avoiding the need to use public highways. This reduces cost and reduces the risk to the public. The full suite of characterization methods needed to establish the condition of the fuel exists and MFC. Many other testing capabilities also exist at MFC, but when those capabilities are not adequate, samples can be prepared and shipped to other laboratories for testing. This report discusses how the casks would be handled, what work needs to be done to ready the facilities/capabilities, and what the work will cost.

  19. Viability of Existing INL Facilities for Dry Storage Cask Handling

    SciTech Connect (OSTI)

    Randy Bohachek; Charles Park; Bruce Wallace; Phil Winston; Steve Marschman

    2013-04-01

    This report evaluates existing capabilities at the INL to determine if a practical and cost effective method could be developed for opening and handling full-sized dry storage casks. The Idaho Nuclear Technology and Engineering Center (INTEC) CPP-603, Irradiated Spent Fuel Storage Facility, provides the infrastructure to support handling and examining casks and their contents. Based on a reasonable set of assumptions, it is possible to receive, open, inspect, remove samples, close, and reseal large bolted-lid dry storage casks at the INL. The capability can also be used to open and inspect casks that were last examined at the TAN Hot Shop over ten years ago. The Castor V/21 and REA-2023 casks can provide additional confirmatory information regarding the extended performance of low-burnup (<45 GWD/MTU) used nuclear fuel. Once a dry storage cask is opened inside CPP-603, used fuel retrieved from the cask can be packaged in a shipping cask, and sent to a laboratory for testing. Testing at the INL’s Materials and Fuels Complex (MFC) can occur starting with shipment of samples from CPP-603 over an on-site road, avoiding the need to use public highways. This reduces cost and reduces the risk to the public. The full suite of characterization methods needed to establish the condition of the fuel exists and MFC. Many other testing capabilities also exist at MFC, but when those capabilities are not adequate, samples can be prepared and shipped to other laboratories for testing. This report discusses how the casks would be handled, what work needs to be done to ready the facilities/capabilities, and what the work will cost.

  20. Building America Case Studies for Existing Homes: Supplemental Ductless

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mini-Split Heat Pump in the Hot-Humid Climate | Department of Energy Supplemental Ductless Mini-Split Heat Pump in the Hot-Humid Climate Building America Case Studies for Existing Homes: Supplemental Ductless Mini-Split Heat Pump in the Hot-Humid Climate The Building America Partnership for Improved Residential Construction team that studied the effects of mini-split heat pumps in six central Florida homes. Supplemental Ductless Mini-Split Heat Pump in the Hot-Humid Climate (694.94 KB) More

  1. Building America Technology Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) | Department of Energy Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Researchers from Alliance for Residential Building Initiative worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump

  2. Building America Technology Solutions for New and Existing Homes: Cost

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN | Department of Energy Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN Building America Technology Solutions for New and Existing Homes: Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN This case study describes the External Thermal and

  3. Building America Technology Solutions for New and Existing Homes: Moisture

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Management of High-R Walls | Department of Energy Management of High-R Walls Building America Technology Solutions for New and Existing Homes: Moisture Management of High-R Walls This project by Building Science Corporation focuses on how eight high-R walls handle the three main sources of moisture-construction moisture, air leakage condensation, and bulk water leaks. Moisture Management of High-R Walls (1.05 MB) More Documents & Publications Building America Technology Solutions for New

  4. Federal metering data analysis needs and existing tools

    SciTech Connect (OSTI)

    Henderson, Jordan W.; Fowler, Kimberly M.

    2015-07-01

    Agencies have been working to improve their metering data collection, management, and analysis efforts over the last decade (since EPAct 2005) and will continue to address these challenges as new requirements and data needs come into place. Unfortunately there is no “one-size-fits-all” solution. As agencies continue to expand their capabilities to use metered consumption data to reducing resource use and improve operations, the hope is that shared knowledge will empower others to follow suit. This paper discusses the Federal metering data analysis needs and some existing tools.

  5. Review of existing residential energy efficiency certification and rating programs

    SciTech Connect (OSTI)

    Hendrickson, P.L.

    1986-11-01

    This report was prepared for the Office of Buildings and Community Systems, US Department of Energy (DOE). The principal objective of the report is to present information on existing Home Energy Rating Systems (HERS) and their features. Much of the information in this report updates a 1982 report (PNL-4359), also prepared by the Pacific Northwest Laboratory (PNL) for DOE. Secondary objectives of the report are to qualitatively examine the benefits and costs of HERS programs, review survey results on the attitudes of various user groups toward the programs, and discuss selected design and implementation issues.

  6. Expert Meeting Report: Windows Options for New and Existing Homes

    SciTech Connect (OSTI)

    Ojczyk, C.; Carmody, J.; Haglund, K.

    2013-05-01

    The NorthernSTAR Building America Partnership held an Expert Meeting on Windows Options for New and Existing Homes on November 14, 2011 at the Nolte Building on the campus of the University of Minnesota in Minneapolis, MN. Featured speakers included John Carmody and Pat Huelman of the University of Minnesota, Charlie Curcija of Lawrence Berkeley National Laboratory, Jim Larson of Cardinal Glass Industries, Peter Yost of Building Green, Peter Baker of Building Science Corporation, and Theresa Weston of Du Pont Innovations. Audience participation was actively encouraged during each presentation to uncover need and promote dialog among researchers and industry professionals.

  7. Expert Meeting Report. Windows Options for New and Existing Homes

    SciTech Connect (OSTI)

    Ojczyck, C.; Carmody, J.; Haglund, K.

    2013-05-01

    The NorthernSTAR Building America Partnership held an Expert Meeting on Windows Options for New and Existing Homes on November 14, 2011, at the Nolte Building on the campus of the University of Minnesota in Minneapolis, MN. Featured speakers included John Carmody and Pat Huelman of the University of Minnesota, Charlie Curcija of Lawrence Berkeley National Laboratory, Jim Larson of Cardinal Glass Industries, Peter Yost of Building Green, Peter Baker of Building Science Corporation, and Theresa Weston of Du Pont Innovations. Audience participation was actively encouraged during each presentation to uncover need and promote dialog among researchers and industry professionals.

  8. Gate dielectric degradation: Pre-existing vs. generated defects

    SciTech Connect (OSTI)

    Veksler, Dmitry E-mail: gennadi.bersuker@sematech.org; Bersuker, Gennadi E-mail: gennadi.bersuker@sematech.org

    2014-01-21

    We consider the possibility that degradation of the electrical characteristics of high-k gate stacks under low voltage stresses of practical interest is caused primarily by activation of pre-existing defects rather than generation of new ones. In nFETs in inversion, in particular, defect activation is suggested to be associated with the capture of an injected electron: in this charged state, defects can participate in a fast exchange of charge carriers with the carrier reservoir (substrate or gate electrode) that constitutes the physical process underlying a variety of electrical measurements. The degradation caused by the activation of pre-existing defects, as opposed to that of new defect generation, is both reversible and exhibits a tendency to saturate through the duration of stress. By using the multi-phonon assisted charge transport description, it is demonstrated that the trap activation concept allows reproducing a variety of experimental results including stress time dependency of the threshold voltage, leakage current, charge pumping current, and low frequency noise. Continuous, long-term degradation described by the power law time dependency is shown to be determined by the activation of defects located in the interfacial SiO{sub 2} layer of the high-k gate stacks. The findings of this study can direct process optimization efforts towards reduction of as-grown precursors of the charge trapping defects as the major factor affecting reliability.

  9. Fish Passage Through a Simulated Horizontal Bulb Turbine Pressure Regime: A Supplement to"Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish"

    SciTech Connect (OSTI)

    Abernethy, Cary S. ); Amidan, Brett G. ); Cada, G F.

    2003-07-31

    Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage. The responses of fall chinook salmon and bluegill sunfish to rapid pressure change was investigated at the Pacific Northwest National Laboratory. Previous test series evaluated the effects of passage through a vertical Kaplan turbine under the"worst case" pressure conditions and under less severe conditions where pressure changes were minimized. For this series of tests, pressure changes were modified to simulate passage through a horizontal bulb turbine, commonly installed at low head dams. The results were compared to results from previous test series. Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage. The responses of fall chinook salmon and bluegill sunfish to rapid pressure change was investigated at the Pacific Northwest National Laboratory. Previous test series evaluated the effects of passage through a vertical Kaplan turbine under the"worst case" pressure conditions and under less severe conditions where pressure changes were minimized. For this series of tests, pressure changes were modified to simulate passage through a horizontal bulb turbine, commonly installed at low head dams. The results were compared to results from previous test series. Both fish species were acclimated for 16-22 hours at either surface (101 kPa; 1 atm) or 30 ft (191 kPa; 1.9 atm) of pressure in a hyperbaric chamber before exposure to a pressure scenario simulating passage through a horizontal bulb turbine. The simulation was as follows: gradual pressure increase to about 2 atm of pressure, followed by a sudden (0.4 second) decrease in pressure to either 0.7 or 0.95 atm, followed by gradual return to 1 atm (surface water pressure). Following the exposure, fish were held at

  10. Method for forming an in situ oil shale retort with horizontal free faces

    DOE Patents [OSTI]

    Ricketts, Thomas E.; Fernandes, Robert J.

    1983-01-01

    A method for forming a fragmented permeable mass of formation particles in an in situ oil shale retort is provided. A horizontally extending void is excavated in unfragmented formation containing oil shale and a zone of unfragmented formation is left adjacent the void. An array of explosive charges is formed in the zone of unfragmented formation. The array of explosive charges comprises rows of central explosive charges surrounded by a band of outer explosive charges which are adjacent side boundaries of the retort being formed. The powder factor of each outer explosive charge is made about equal to the powder factor of each central explosive charge. The explosive charges are detonated for explosively expanding the zone of unfragmented formation toward the void for forming the fragmented permeable mass of formation particles having a reasonably uniformly distributed void fraction in the in situ oil shale retort.

  11. Methane drainage with horizontal boreholes in advance of longwall mining: an analysis. Final report

    SciTech Connect (OSTI)

    Gabello, D.P.; Felts, L.L.; Hayoz, F.P.

    1981-05-01

    The US Department of Energy (DOE) Morgantown Energy Technology Center has implemented a comprehensive program to demonstrate the technical and economic viability of coalbed methane as an energy resource. The program is directed toward solution of technical and institutional problems impeding the recovery and use of large quantities of methane contained in the nation's minable and unminable coalbeds. Conducted in direct support of the DOE Methane Recovery from Coalbeds Project, this study analyzes the economic aspects of a horizontal borehole methane recovery system integrated as part of a longwall mine operation. It establishes relationships between methane selling price and annual mine production, methane production rate, and the methane drainage system capital investment. Results are encouraging, indicating that an annual coal production increase of approximately eight percent would offset all associated drainage costs over the range of methane production rates and capital investments considered.

  12. Numerical Simulation of Horizontal Continuous Casting Process of C194 Copper Alloy

    SciTech Connect (OSTI)

    Huang Guojie; Xie Shuisheng; Cheng Lei; Cheng Zhenkang [State Key Laboratory for Fabrication and Processing of Nonferrous Metals, Beijing General Research Institute for Non-ferrous Metals, China, 100088 (China)

    2007-05-17

    Horizontal Continuous Casting (H.C.C) is an important method to cast C194 copper ingot. In this paper, numerical simulation is adopted to investigate the casting process in order to optimize the H.C.C technical parameters, such as the casting temperature, casting speed and cooling intensity. According to the numerical results, the reasonable parameters are that the casting temperature is between 1383K{approx}1463K, the casting speed is between 7.2m/h{approx}10.8m/h and the speed of cooling water is between 3.6m/s{approx}4.6m/s. The results of numerical simulation provide the significant reference to the subsequent experiments.

  13. Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing

    SciTech Connect (OSTI)

    Butterfield, C.P.; Musial, W.P.; Simms, D.A.

    1992-10-01

    How does wind tunnel airfoil data differ from the airfoil performance on an operating horizontal axis wind turbine (HAWT) The National Renewable Energy laboratory has been conducting a comprehensive test program focused on answering this question and understanding the basic fluid mechanics of rotating HAWT stall aerodynamics. The basic approach was to instrument a wind rotor, using an airfoil that was well documented by wind tunnel tests, and measure operating pressure distributions on the rotating blade. Based an the integrated values of the pressure data, airfoil performance coefficients were obtained, and comparisons were made between the rotating data and the wind tunnel data. Care was taken to the aerodynamic and geometric differences between the rotating and the wind tunnel models. This is the first of two reports describing the Combined Experiment Program and its results. This Phase I report covers background information such as test setup and instrumentation. It also includes wind tunnel test results and roughness testing.

  14. Analysis of gallium arsenide deposition in a horizontal chemical vapor deposition reactor using massively parallel computations

    SciTech Connect (OSTI)

    Salinger, A.G.; Shadid, J.N.; Hutchinson, S.A.

    1998-01-01

    A numerical analysis of the deposition of gallium from trimethylgallium (TMG) and arsine in a horizontal CVD reactor with tilted susceptor and a three inch diameter rotating substrate is performed. The three-dimensional model includes complete coupling between fluid mechanics, heat transfer, and species transport, and is solved using an unstructured finite element discretization on a massively parallel computer. The effects of three operating parameters (the disk rotation rate, inlet TMG fraction, and inlet velocity) and two design parameters (the tilt angle of the reactor base and the reactor width) on the growth rate and uniformity are presented. The nonlinear dependence of the growth rate uniformity on the key operating parameters is discussed in detail. Efficient and robust algorithms for massively parallel reacting flow simulations, as incorporated into our analysis code MPSalsa, make detailed analysis of this complicated system feasible.

  15. Theoretical and experimental power from large horizontal-axis wind turbines

    SciTech Connect (OSTI)

    Viterna, L A; Janetzke, D C

    1982-09-01

    A method for calculating the output power from large horizontal-axis wind turbines is presented. Modifications to the airfoil characteristics and the momentum portion of classical blade element-momentum theory are given that improve correlation with measured data. Improvement is particularly evident at low tip speed ratios where aerodynamic stall can occur as the blade experiences high angles of attack. Output power calculated using the modified theory is compared with measured data for several large wind turbines. These wind turbines range in size from the DOE/NASA 100 kW Mod-O (38 m rotor diameter) to the 2000 kW Mod-1 (61 m rotor diameter). The calculated results are in good agreement with measured data from these machines.

  16. Sand transport and deposition in horizontal multiphase trunklines of subsea satellite developments

    SciTech Connect (OSTI)

    Oudeman, P. )

    1993-11-01

    Gravel packing is unattractive as a way to protect against the effects of sand production in subsea wells because it involves additional completion costs, loss of productivity, and difficulties in subsequent recompletion/well servicing operations. On the other hand, omitting gravel packs means that subsea developments must be designed and operated so that they can tolerate sand production. An experimental study was carried out on sand transport and deposition in multiphase flow in modeled subsea flowlines to address the problem and sand collection in horizontal trunklines, which could lead to reduced line throughput, pigging problems, enhanced pipe-bottom erosion, or even blockage. This study led to the definition of a new model for sand transport in multiphase flow, which was used to establish the risk of sand deposition in trunklines connecting a subsea development to nearby production platform.

  17. Apparatus and method for the horizontal, crucible-free growth of silicon sheet crystals

    DOE Patents [OSTI]

    Ciszek, Theodore F.

    1987-01-01

    Apparatus for continuously forming a silicon crystal sheet from a silicon rod in a noncrucible environment. The rod is rotated and fed toward an RF coil in an inert atmosphere so that the upper end of the rod becomes molten and the silicon sheet crystal is pulled therefrom substantially horizontally in a continuous strip. A shorting ring may be provided around the rod to limit the heating to the upper end only. Argon gas can be used to create the inert atmosphere within a suitable closed chamber. By use of this apparatus and method, a substantially defect-free silicon crystal sheet is formed that can be used for microcircuitry chips or solar cells.

  18. Apparatus and method for the horizontal, crucible-free growth of silicon sheet crystals

    DOE Patents [OSTI]

    Ciszek, T.F.

    1984-09-12

    Apparatus is provided for continuously forming a silicon crystal sheet from a silicon rod in a non-crucible environment. The rod is rotated and fed toward an RF coil in an inert atmosphere so that the upper end of the rod becomes molten and the silicon sheet crystal is pulled therefrom substantially horizontally in a continuous strip. A shorting ring may be provided around the rod to limit the heating to the upper end only. Argon gas can be used to create the inert atmosphere within a suitable closed chamber. By use of this apparatus and method, a substantially defect-free silicon crystal sheet is formed which can be used for micro-circuitry chips or solar cells.

  19. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Chris Liner; Dennis Kerr; Mohan Kelkar

    1998-09-30

    Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance The overall purpose of the proposed project is to improve secondary recovery performance of a marginal oil field through the use of an appropriate reservoir management plan. The selection of plan will be based on the detailed reservoir description using an integrated approach. We expect that 2 to 5% of the original oil in place will be recovered using this method. This should extend the life of the reservoir by at least 10 years. The project is divided into two stages. In Stage I of the project, we selected part of the Glenn Pool Field - Self Unit. We conducted cross borehole tomography surveys and formation micro scanner logs through a newly drilled well. By combining the state-of-the-art data with conventional core and log data, we developed a detailed reservoir description based on an integrated approach. After conducting extensive reservoir simulation studies, we evaluated alternate reservoir management strategies to improve the reservoir performance including drilling of a horizontal injection well. We observed that selective completion of many wells followed by an increase in the injection rate was the most feasible option to improve the performance of the Self Unit. This management plan is currently being implemented and the performance is being monitored. Stage II of the project will involve selection of part of the same reservoir (Berryhill Unit - Tract 7), development of reservoir description using only conventional data, simulation of flow performance using developed reservoir description, selection of an appropriate reservoir management plan, and implementation of the plan followed by monitoring of reservoir performance.

  20. On the existence of certain axisymmetric interior metrics

    SciTech Connect (OSTI)

    Angulo Santacruz, C.; Batic, D.; Nowakowski, M.

    2010-08-15

    One of the effects of noncommutative coordinate operators is that the delta function connected to the quantum mechanical amplitude between states sharp to the position operator gets smeared by a Gaussian distribution. Although this is not the full account of the effects of noncommutativity, this effect is, in particular, important as it removes the point singularities of Schwarzschild and Reissner-Nordstroem solutions. In this context, it seems to be of some importance to probe also into ringlike singularities which appear in the Kerr case. In particular, starting with an anisotropic energy-momentum tensor and a general axisymmetric ansatz of the metric together with an arbitrary mass distribution (e.g., Gaussian), we derive the full set of Einstein equations that the noncommutative geometry inspired Kerr solution should satisfy. Using these equations we prove two theorems regarding the existence of certain Kerr metrics inspired by noncommutative geometry.

  1. Existing technology transfer report: analytical capabilities. Appendix B. Volume 3

    SciTech Connect (OSTI)

    Tewari, K.C.

    1984-06-01

    The overall objective of the on-going analytical efforts was to develop in-house expertise and analytical capability for the analysis of coal and coal-derived products in support of SRC-I process technology. The approach taken and work accomplished involved: identification of test methods and associated equipment; review and implementation of analytical facility plan; evaluation of existing instrumentation; evaluation and purchase of new instruments; training of laboratory personnel; validation or development of analytical methods; development of standard product work-up methods and development of analytical protocol for detailed characterization of SRC-I solid and liquid products. This volume contains Appendix B with the following attachments: solvent separation procedure A; Wilsonville solvent separation procedure, distillation separation procedure; solvent separation modified Wilsonville Procedure W; statistical comparison of 3 solvent separation procedures; methods development for column chromatography, and application of gas chromatography to characterization of a hydrogen donor solvent; and high performance liquid chromatographic procedure.

  2. Strategy Guideline: Quality Management in Existing Homes; Cantilever Floor Example

    SciTech Connect (OSTI)

    Taggart, J.; Sikora, J.; Wiehagen, J.; Wood, A.

    2011-12-01

    This guideline is designed to highlight the QA process that can be applied to any residential building retrofit activity. The cantilevered floor retrofit detailed in this guideline is included only to provide an actual retrofit example to better illustrate the QA activities being presented. The goal of existing home high performing remodeling quality management systems (HPR-QMS) is to establish practices and processes that can be used throughout any remodeling project. The research presented in this document provides a comparison of a selected retrofit activity as typically done versus that same retrofit activity approached from an integrated high performance remodeling and quality management perspective. It highlights some key quality management tools and approaches that can be adopted incrementally by a high performance remodeler for this or any high performance retrofit. This example is intended as a template and establishes a methodology that can be used to develop a portfolio of high performance remodeling strategies.

  3. Measure Guideline: Selecting Ventilation Systems for Existing Homes

    SciTech Connect (OSTI)

    Aldrich, R.

    2014-02-01

    This document addresses adding -or improving - mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including some discussion of relevant codes and standards. Advantages, disadvantages, and approximate costs of various system types are presented along with general guidelines for implementing the systems in homes. CARB intends for this document to be useful to decision makers and contractors implementing ventilation systems in homes. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors. It is the intent of this document to assist contractors in making more informed decisions when selecting systems. Ventilation is an integral part of a high-performance home. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability.

  4. Measure Guideline: Selecting Ventilation Systems for Existing Homes

    SciTech Connect (OSTI)

    Aldrich, R.

    2014-02-01

    This report, developed by Building America research team CARB, addresses adding or improving mechanical ventilation systems to existing homes. The goal of this report is to assist decision makers and contractors in making informed decisions when selecting ventilation systems for homes. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including examination of relevant codes and standards. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors.

  5. Evaluation of global horizontal irradiance to plane-of-array irradiance models at locations across the United States

    SciTech Connect (OSTI)

    Lave, Matthew; Hayes, William; Pohl, Andrew; Hansen, Clifford W.

    2015-02-02

    We report an evaluation of the accuracy of combinations of models that estimate plane-of-array (POA) irradiance from measured global horizontal irradiance (GHI). This estimation involves two steps: 1) decomposition of GHI into direct and diffuse horizontal components and 2) transposition of direct and diffuse horizontal irradiance (DHI) to POA irradiance. Measured GHI and coincident measured POA irradiance from a variety of climates within the United States were used to evaluate combinations of decomposition and transposition models. A few locations also had DHI measurements, allowing for decoupled analysis of either the decomposition or the transposition models alone. Results suggest that decomposition models had mean bias differences (modeled versus measured) that vary with climate. Transposition model mean bias differences depended more on the model than the location. Lastly, when only GHI measurements were available and combinations of decomposition and transposition models were considered, the smallest mean bias differences were typically found for combinations which included the Hay/Davies transposition model.

  6. Surface mining

    SciTech Connect (OSTI)

    Not Available

    1989-06-01

    This paper reports on a GAO study of attorney and expert witness fees awarded as a result of litigation brought under the Surface Mining Control and Reclamation Act. As of March 24, 1989, a total of about $1.4 million had been awarded in attorney fees and expenses - about $1.3 subject to the provisions of the Employee Retirement Income Security Act, a comparison of its features with provisions of ERISA showed that the plan differed from ERISA provisions in areas such as eligibility, funding, and contribution limits.

  7. Geomechanical modeling of reservoir compaction, surface subsidence, and casing damage at the Belridge diatomite field

    SciTech Connect (OSTI)

    FREDRICH,JOANNE T.; DEITRICK,G.L.; ARGUELLO JR.,JOSE G.; DEROUFFIGNAC,E.P.

    2000-05-01

    Geologic, and historical well failure, production, and injection data were analyzed to guide development of three-dimensional geomechanical models of the Belridge diatomite field, California. The central premise of the numerical simulations is that spatial gradients in pore pressure induced by production and injection in a low permeability reservoir may perturb the local stresses and cause subsurface deformation sufficient to result in well failure. Time-dependent reservoir pressure fields that were calculated from three-dimensional black oil reservoir simulations were coupled uni-directionally to three-dimensional non-linear finite element geomechanical simulations. The reservoir models included nearly 100,000 gridblocks (100--200 wells), and covered nearly 20 years of production and injection. The geomechanical models were meshed from structure maps and contained more than 300,000 nodal points. Shear strain localization along weak bedding planes that causes casing dog-legs in the field was accommodated in the model by contact surfaces located immediately above the reservoir and at two locations in the overburden. The geomechanical simulations are validated by comparison of the predicted surface subsidence with field measurements, and by comparison of predicted deformation with observed casing damage. Additionally, simulations performed for two independently developed areas at South Belridge, Sections 33 and 29, corroborate their different well failure histories. The simulations suggest the three types of casing damage observed, and show that although water injection has mitigated surface subsidence, it can, under some circumstances, increase the lateral gradients in effective stress, that in turn can accelerate subsurface horizontal motions. Geomechanical simulation is an important reservoir management tool that can be used to identify optimal operating policies to mitigate casing damage for existing field developments, and applied to incorporate the effect of

  8. On the Existence of Our Metals-Based Civilization: I. Phase Space Analysis

    SciTech Connect (OSTI)

    D.D. Macdonald

    2005-06-22

    The stability of the barrier layers of bilayer passive films that form on metal and alloy surfaces, when in contact with oxidizing aqueous environments, is explored within the framework of the Point Defect Model (PDM) using phase-space analysis (PSA), in which the rate of growth of the barrier layer into the metal, (dL{sup +}/dt), and the barrier layer dissolution rate, (dL{sup -}/dt), are plotted simultaneously against the barrier layer thickness. A point of intersection of dL{sup -}/dt with dL{sup +}/dt indicates the existence of a metastable barrier layer with a steady state thickness greater than zero. If dL{sup -}/dt > (dL{sup +}/dt){sub L=0}, where the latter quantity is the barrier layer growth rate at zero barrier layer thickness, the barrier layer cannot exist, even as a metastable phase, as the resulting thickness would be negative. Under these conditions, the surface is depassivated and the metal may corrode at a rapid rate. Depassivation may result from a change in the oxidation state of the cation upon dissolution of the barrier layer, such that the dissolution rate becomes highly potential dependent (as in the case of transpassive dissolution of chromium-containing alloys, for example, in which the reaction Cr{sub 2}O{sub 3} + 5H{sub 2}O {yields} 2CrO{sub 4}{sup 2-} + 10H {sup +} + 6e{sup -} results in the destruction of the film), or by the action of some solution-phase species (e.g., H{sup +}, Cl{sup -}) that enhances the dissolution rate to the extent that dL{sup -}/dt > (dL{sup +}/dt){sub L=0}. The boundaries for depassivation may be plotted in potential-pH space to develop Kinetic Stability Diagrams (KSDs) as alternatives to the classical Pourbaix diagrams for describing the conditions under which metals or alloys exist in contact with an aqueous environment. The advantage of KSDs is that they provide kinetic descriptions of the state of a metal or alloy that is in much closer concert with the kinetic phenomenon of passivity and depassivation

  9. Existing technology transfer report: analytical capabilities. Volume 1

    SciTech Connect (OSTI)

    Tewari, K.C.

    1984-06-01

    The overall objective of the on-going analytical efforts was to develop in-house expertise and analytical capability for the analysis of coal and coal-derived products in support of SRC-I process technology. The approach taken and work accomplished involved: identification of test methods and associated equipment; review and implementation of analytical facility plan; evaluation of existing instrumentation; evaluation and purchase of new instruments; training of laboratory personnel; validation or development of analytical methods; development of standard product work-up methods; and development of analytical protocol for detailed characterization of SRC-I solid and liquid products. Expertise in analytical chemistry was developed by organizing historical knowledge and assimilating new knowledge as it became available from inside and outside research facilities and the chemical literature. The data were then used to define analytical methods, instrumentation, space, staff needed to create a functional coal analysis laboratory. This report summarizes the direction and progress of the analytical development efforts during the period 1974 to 1980. 2 references, 5 figures.

  10. Methodology and Process for Condition Assessment at Existing Hydropower Plants

    SciTech Connect (OSTI)

    Zhang, Qin Fen; Smith, Brennan T; Cones, Marvin; March, Patrick; Dham, Rajesh; Spray, Michael

    2012-01-01

    Hydropower Advancement Project was initiated by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy to develop and implement a systematic process with a standard methodology to identify the opportunities of performance improvement at existing hydropower facilities and to predict and trend the overall condition and improvement opportunity within the U.S. hydropower fleet. The concept of performance for the HAP focuses on water use efficiency how well a plant or individual unit converts potential energy to electrical energy over a long-term averaging period of a year or more. The performance improvement involves not only optimization of plant dispatch and scheduling but also enhancement of efficiency and availability through advanced technology and asset upgrades, and thus requires inspection and condition assessment for equipment, control system, and other generating assets. This paper discusses the standard methodology and process for condition assessment of approximately 50 nationwide facilities, including sampling techniques to ensure valid expansion of the 50 assessment results to the entire hydropower fleet. The application and refining process and the results from three demonstration assessments are also presented in this paper.

  11. Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

    DOE Patents [OSTI]

    Carpenter, Donald A.

    1995-01-01

    A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data.

  12. Field Test and Evaluation of Engineered Biomineralization Technology for Sealing Existing Wells

    SciTech Connect (OSTI)

    Cunningham, Alfred

    2015-12-21

    This research project addresses one of the goals of the U.S. Department of Energy (DOE) Carbon Storage Program (CSP) aimed at developing Advanced Wellbore Integrity Technologies to Ensure Permanent Geologic Carbon Storage. The technology field-tested in this research project is referred to as microbially induced calcite precipitation (MICP), which utilizes a biologically-based process to precipitate calcium carbonate. If properly controlled MICP can successfully seal fractures, high permeability zones, and compromised wellbore cement in the vicinity of wellbores and in nearby caprock, thereby improving the storage security of geologically-stored carbon dioxide. This report describes an MICP sealing field test performed on a 24.4 cm (9.625 inch) diameter well located on the Gorgas Steam Generation facility near Jasper, Alabama. The research was aimed at (1) developing methods for delivering MICP promoting fluids downhole using conventional oil field technologies and (2) assessing the ability of MICP to seal cement and formation fractures in the near wellbore region in a sandstone formation. Both objectives were accomplished successfully during a field test performed during the period April 1-11, 2014. The test resulted in complete biomineralization sealing of a horizontal fracture located 340.7 m (1118 feet) below ground surface. A total of 24 calcium injections and six microbial inoculation injections were required over a three day period in order to achieve complete sealing. The fractured region was considered completely sealed when it was no longer possible to inject fluids into the formation without exceeding the initial formation fracture pressure. The test was accomplished using conventional oil field technology including an 11.4 L (3.0 gallon) wireline dump bailer for injecting the biomineralization materials downhole. Metrics indicating successful MICP sealing included reduced injectivity during seal formation, reduction in pressure falloff, and

  13. The existence and nature of the interstellar bow shock

    SciTech Connect (OSTI)

    Ben-Jaffel, Lotfi; Strumik, M.; Ratkiewicz, R.; Grygorczuk, J.

    2013-12-20

    We report a new diagnosis of two different states of the local interstellar medium (LISM) near our solar system by using a sensitivity study constrained by several distinct and complementary observations of the LISM, solar wind, and inner heliosphere. Assuming the Interstellar Boundary Explorer (IBEX) He flow parameters for the LISM, we obtain a strength of ?2.7 ± 0.2 ?G and a direction pointing away from galactic coordinates (28, 52) ± 3° for the interstellar magnetic field as a result of fitting Voyager 1 and Voyager 2 in situ plasma measurements and IBEX energetic neutral atoms ribbon. When using Ulysses parameters for the LISM He flow, we recently reported the same direction but with a strength of 2.2 ± 0.1 ?G. First, we notice that with Ulysses He flow, our solution is in the expected hydrogen deflection plane (HDP). In contrast, for the IBEX He flow, the solution is ?20° away from the corresponding HDP plane. Second, the long-term monitoring of the interplanetary H I flow speed shows a value of ?26 km s{sup –1} measured upwind from the Doppler shift in the strong Ly? sky background emission line. All elements of the diagnosis seem therefore to support Ulysses He flow parameters for the interstellar state. In that frame, we argue that reliable discrimination between superfast, subfast, or superslow states of the interstellar flow should be based on most existing in situ and remote observations used together with global modeling of the heliosphere. For commonly accepted LISM ionization rates, we show that a fast interstellar bow shock should be standing off upstream of the heliopause.

  14. Water vulnerabilities for existing coal-fired power plants.

    SciTech Connect (OSTI)

    Elcock, D.; Kuiper, J.; Environmental Science Division

    2010-08-19

    This report was funded by the U.S. Department of Energy's (DOE's) National Energy Technology Laboratory (NETL) Existing Plants Research Program, which has an energy-water research effort that focuses on water use at power plants. This study complements the Existing Plants Research Program's overall research effort by evaluating water issues that could impact power plants. Water consumption by all users in the United States over the 2005-2030 time period is projected to increase by about 7% (from about 108 billion gallons per day [bgd] to about 115 bgd) (Elcock 2010). By contrast, water consumption by coal-fired power plants over this period is projected to increase by about 21% (from about 2.4 to about 2.9 bgd) (NETL 2009b). The high projected demand for water by power plants, which is expected to increase even further as carbon-capture equipment is installed, combined with decreasing freshwater supplies in many areas, suggests that certain coal-fired plants may be particularly vulnerable to potential water demand-supply conflicts. If not addressed, these conflicts could limit power generation and lead to power disruptions or increased consumer costs. The identification of existing coal-fired plants that are vulnerable to water demand and supply concerns, along with an analysis of information about their cooling systems and related characteristics, provides information to help focus future research and development (R&D) efforts to help ensure that coal-fired generation demands are met in a cost-effective manner that supports sustainable water use. This study identified coal-fired power plants that are considered vulnerable to water demand and supply issues by using a geographical information system (GIS) that facilitated the analysis of plant-specific data for more than 500 plants in the NETL's Coal Power Plant Database (CPPDB) (NETL 2007a) simultaneously with 18 indicators of water demand and supply. Two types of demand indicators were evaluated. The first type

  15. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Chris Liner; Dennis Kerr; Mohan Kelkar

    1998-06-30

    Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance scanner logs through a newly drilled well. By combining the state-of-the-art data with conventional core and log data, we developed a detailed reservoir description based on an integrated approach. After conducting extensive reservoir simulation studies, we evaluated alternate reservoir management strategies to improve the reservoir performance including drilling of a horizontal injection well. We observed that selective completion of many wells followed by an increase in the injection rate was the most feasible option to improve the performance of the Self Unit. This management plan is currently being implemented and the performance is being Stage II of the project will involve selection of part of the same reservoir (Berryhill Unit - Tract 7), development of reservoir description using only conventional data, simulation of flow performance using developed reservoir description, selection of an appropriate reservoir management plan, and implementation of the plan followed by monitoring of reservoir performance. During the summer of 1995, we started implementing the reservoir management plan in the Self Unit. Last quarter, after evaluating each individual well, we decided to install electrical submersible pumps to produce three wells. The other three wells required the use of rod pumps. Production from the field improved significantly once the pumps were installed. Over the last two years, an average daily production has been approximately 40 to 45 bbls/day. Compared to a base line production of 13 bbls/day before the implementation, this is more than a 200% increase in production. determined. We are finalizing the AFE for the overall implementation. This overall implementation will include converting well no 61 into an injector, re-perforating wells M-3A and M-4A, and drilling a deviated production well between 61 and M-3A/M-4A i n east west direction. The total

  16. Geological aspects of drilling horizontal wells in steam flood reservoirs, west side, southern San Joaquin Valley, California

    SciTech Connect (OSTI)

    Crough, D.D.; Holman, M.L.; Sande, J.J. )

    1994-04-01

    Shell Western E P Inc. has drilled 11 horizontal wells in four mature steam floods in the Coalinga, South Belridge, and Midway-Sunset fields. Two medium radius wells are producing from the Pliocene Etchegoin Formation in Coalinga. One medium radius well is producing from the Pleistocene Tulare Formation in South Belridge field. Three short radius and five medium radius wells are producing from the upper Miocene, Sub-Hoyt and Potter sands in Midway-Sunset field. Horizontal wells at the base of these reservoirs and/or structurally downdip near the oil-water contact are ideally suited to take advantage of the gravity drainage production mechanism. Reservoir studies and production experience have shown these horizontal wells should increase reserves, improve recovery efficiency, improve the oil-steam ratio, and improve project profitability. Geological considerations of targeting the wells vary between fields because of the different depositional environments and resulting reservoir characteristics. The thin sands and semicontinuous shales in the Tulare Formation and the Etchegoin Formation require strict structural control on the top and base of the target sand. In the Sub-Hoyt and Potter sands, irregularities of the oil-water contact and sand and shale discontinuities must be understood. Logging and measurement while drilling provide geosteering capability in medium radius wells. Teamwork between all engineering disciplines and drilling and producing operations has been critical to horizontal well success.

  17. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing a ferromagnetic dam

    DOE Patents [OSTI]

    Praeg, W.F.

    1997-02-11

    An apparatus is disclosed for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and a ferromagnetic dam. The magnetic field and the ferromagnetic dam contain the molten metal from leaking out side portions of the open side of the containment structure. 25 figs.

  18. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing a ferromagnetic dam

    DOE Patents [OSTI]

    Praeg, Walter F.

    1997-01-01

    An apparatus for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and a ferromagnetic dam. The magnetic field and the ferromagnetic dam contain the molten metal from leaking out side portions of the open side of the containment structure.

  19. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing low reluctance rims

    DOE Patents [OSTI]

    Praeg, Walter F.

    1999-01-01

    A method and apparatus for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and rollers including low reluctance rim structures. The magnetic field and the rollers help contain the molten metal from leaking out of the containment structure.

  20. Characteristics and Performance of Existing Load Disaggregation Technologies

    SciTech Connect (OSTI)

    Mayhorn, Ebony T.; Sullivan, Greg P.; Butner, Ryan S.; Hao, He; Baechler, Michael C.

    2015-04-10

    of NILM that make them attractive for certain building environments and different classes of end-users. The intent of this report is to raise awareness of trending NILM approaches. Additionally, three existing technologies were acquired and evaluated using the Residential Building Stock Assessment (RBSA) owner-occupied test bed operated by the Northwest Energy Efficiency Alliance (NEEA) to understand performance accuracy of current NILM products under realistic conditions. Based on this field study experience, the characteristics exhibited by the NILM products included in the assessment are also discussed in this report in terms of ease of use, ease of installation, ability to inform decisions and actions. Results of the analysis performed to investigate the accuracy of the participating NILM products in estimating energy use of individual appliances are also presented.

  1. Feasibility Study of Hydrogen Production at Existing Nuclear Power Plants

    SciTech Connect (OSTI)

    Stephen Schey

    2009-07-01

    Cooperative Agreement DE-FC07-06ID14788 was executed between the U.S. Department of Energy, Electric Transportation Applications, and Idaho National Laboratory to investigate the economics of producing hydrogen by electrolysis using electricity generated by nuclear power. The work under this agreement is divided into the following four tasks: Task 1 – Produce Data and Analyses Task 2 – Economic Analysis of Large-Scale Alkaline Electrolysis Task 3 – Commercial-Scale Hydrogen Production Task 4 – Disseminate Data and Analyses. Reports exist on the prospect that utility companies may benefit from having the option to produce electricity or produce hydrogen, depending on market conditions for both. This study advances that discussion in the affirmative by providing data and suggesting further areas of study. While some reports have identified issues related to licensing hydrogen plants with nuclear plants, this study provides more specifics and could be a resource guide for further study and clarifications. At the same time, this report identifies other area of risks and uncertainties associated with hydrogen production on this scale. Suggestions for further study in some of these topics, including water availability, are included in the report. The goals and objectives of the original project description have been met. Lack of industry design for proton exchange membrane electrolysis hydrogen production facilities of this magnitude was a roadblock for a significant period. However, recent design breakthroughs have made costing this facility much more accurate. In fact, the new design information on proton exchange membrane electrolyzers scaled to the 1 kg of hydrogen per second electrolyzer reduced the model costs from $500 to $100 million. Task 1 was delayed when the original electrolyzer failed at the end of its economic life. However, additional valuable information was obtained when the new electrolyzer was installed. Products developed during this study

  2. Sub-grid drag models for horizontal cylinder arrays immersed in gas-particle multiphase flows

    SciTech Connect (OSTI)

    Sarkar, Avik; Sun, Xin; Sundaresan, Sankaran

    2013-09-08

    Immersed cylindrical tube arrays often are used as heat exchangers in gas-particle fluidized beds. In multiphase computational fluid dynamics (CFD) simulations of large fluidized beds, explicit resolution of small cylinders is computationally infeasible. Instead, the cylinder array may be viewed as an effective porous medium in coarse-grid simulations. The cylinders' influence on the suspension as a whole, manifested as an effective drag force, and on the relative motion between gas and particles, manifested as a correction to the gas-particle drag, must be modeled via suitable sub-grid constitutive relationships. In this work, highly resolved unit-cell simulations of flow around an array of horizontal cylinders, arranged in a staggered configuration, are filtered to construct sub-grid, or `filtered', drag models, which can be implemented in coarse-grid simulations. The force on the suspension exerted by the cylinders is comprised of, as expected, a buoyancy contribution, and a kinetic component analogous to fluid drag on a single cylinder. Furthermore, the introduction of tubes also is found to enhance segregation at the scale of the cylinder size, which, in turn, leads to a reduction in the filtered gas-particle drag.

  3. EFFECT OF HORIZONTALLY INHOMOGENEOUS HEATING ON FLOW AND MAGNETIC FIELD IN THE CHROMOSPHERE OF THE SUN

    SciTech Connect (OSTI)

    Song, P.; Vasyli?nas, V. M.

    2014-12-01

    The solar chromosphere is heated by damped Alfvén waves propagating upward from the photosphere at a rate that depends on magnetic field strength, producing enhanced heating at low altitudes in the extended weak-field regions (where the additional heating accounts for the radiative losses) between the boundaries of the chromospheric network as well as enhanced heating per particle at higher altitudes in strong magnetic field regions of the network. The resulting inhomogeneous radiation and temperature distribution produces bulk flows, which in turn affect the configuration of the magnetic field. The basic flow pattern is circulation on the spatial scale of a supergranule, with upward flow in the strong-field region; this is a mirror image in the upper chromosphere of photospheric/subphotospheric convection widely associated with the formation of the strong network field. There are significant differences between the neutral and the ionized components of the weakly ionized medium: neutral flow streamlines can form closed cells, whereas plasma is largely constrained to flow along the magnetic field. Stresses associated with this differential flow may explain why the canopy/funnel structures of the network magnetic field have a greater horizontal extent and are relatively more homogeneous at high altitudes than is expected from simple current-free models.

  4. HORIZONTAL BRANCH MORPHOLOGY AND MULTIPLE STELLAR POPULATIONS IN THE ANOMALOUS GLOBULAR CLUSTER M 22

    SciTech Connect (OSTI)

    Marino, A. F.; Milone, A. P.; Lind, K. E-mail: milone@iac.es

    2013-05-01

    M 22 is an anomalous globular cluster that hosts two groups of stars with different metallicity and s-element abundance. The star-to-star light-element variations in both groups, with the presence of individual Na-O and C-N anticorrelations, demonstrates that this Milky Way satellite has experienced a complex star formation history. We have analyzed FLAMES/UVES spectra for seven stars covering a small color interval on the reddest horizontal branch (HB) portion of this cluster and investigated possible relations between the chemical composition of a star and its location along the HB. Our chemical abundance analysis takes into account effects introduced by deviations from the local thermodynamic equilibrium (NLTE effects), which are significant for the measured spectral lines in the atmospheric parameters range spanned by our stars. We find that all the analyzed stars are barium-poor and sodium-poor, thus supporting the idea that the position of a star along the HB is strictly related to the chemical composition, and that the HB morphology is influenced by the presence of different stellar populations.

  5. Comparison of optically measured and radar-derived horizontal neutral winds. Master's thesis

    SciTech Connect (OSTI)

    Christie, M.S.

    1990-01-01

    Nighttime thermospheric winds for Sondrestrom, Greenland from 11 nights between 1983 and 1988, have been compared to learn about the O(+)-O collision cross section and the high-latitude atomic oxygen density. The horizontal winds in the magnetic meridian were derived indirectly from incoherent-scatter radar (ISR) measurements on ion velocities antiparallel to the magnetic field and directly from Fabry-Perot interferometer (FPI) measurements of Doppler shifts of the (6300-A) emission of atomic oxygen. In deriving the radar winds, the O(+)-O collision cross section, was scaled by a factor of f what was varied from 0.5 to 5.1. On the basis of several arguments the altitude of the 6300-A emission was assumed to be 230 km. The best agreement between the ISR and FPI winds was obtained when f was increased substantially, to between 1.7 and 3.4. If the average peak emission altitude were higher, these factors would be larger; if it were lower, they would be somewhat smaller. However, if the average altitude were substantially lower it would have been more difficult to have obtained agreement between the two techniques.

  6. METALLICITY AND KINEMATIC DISTRIBUTIONS OF RED HORIZONTAL-BRANCH STARS FROM THE SDSS SURVEY

    SciTech Connect (OSTI)

    Chen, Y. Q.; Zhao, G.; Zhao, J. K.; Xue, X. X.; Schuster, W. J. E-mail: schuster@astrosen.unam.m

    2010-08-15

    On the basis of a recently derived color-metallicity relation and stellar parameters from the Sloan Digital Sky Survey Data Release 7 spectroscopic survey, a large sample of red horizontal-branch (RHB) candidates have been selected to serve as standard candles. The metallicity and kinematic distributions of these stars indicate that they mainly originate from the thick-disk and the halo populations. The typical thick disk is characterized by the first group peaking at [Fe/H] {approx} -0.6, V{sub rot} {approx} 170 km s{sup -1} with a vertical scale height around |Z| {approx} 1.2 kpc, while stars with [Fe/H] < -0.9 are dominated by the halo population. Two sub-populations of the halo are suggested by the RHB stars peaking at [Fe/H] {approx} -1.3: one component with V{sub rot} > 0 km s{sup -1} (Halo I) shows a sign of metallicity gradient in the [Fe/H] versus |Z| diagram, while the other with V{sub rot} < 0 km s{sup -1} (Halo II) does not. The Halo I mainly clumps at the inner halo with R < 10 kpc and the Halo II comes both from the inner halo with R < 10 kpc and the outer halo with R > 10 kpc based on the star distribution in the R versus |Z| diagram.

  7. Aerodynamic analysis of a 10 kW horizontal-axis windmill

    SciTech Connect (OSTI)

    Figard, R.L.

    1980-01-01

    An aerodynamic study of the performance and the flowfield in the vicinity of the rotor of a three bladed 10 kW, horizontal-axis windmill is presented. The windmill has a 6.38 m (20.92 ft) diameter rotor and is rated at 10 kW in a 13.41 m/s (44.0 fps) wind. Three basic approaches are utilized. First, field measurements of the performance and the axial velocity and turbulence behind the rotor were conducted. Second, wind tunnel tests of a 1:5 scale model were performed. Third, theoretical analyses of the windmill were made. This included performance predictions with a computerized, modified blade element (vortex theory) analysis and the development and utilization of a numerical procedure employing the full Navier-Stokes equations in axi-symmetric form to examine the wake development in detail. In that effort the rotor is modeled by an actuator disk in a uniform flow, a simple turbulence transport model based on an integrated TKE equation is applied, and the equations of motion are taken in terms of the stream function, one vorticity component, and the peripheral velocity. The results of each of the three approaches shows agreement within 10 to 15% with the other two approaches.

  8. Horizontal-flow anaerobic immobilized sludge (HAIS) reactor for paper industry wastewater treatment

    SciTech Connect (OSTI)

    Foresti, E.; Cabral, A.K.A.; Zaiat, M.; Del Nery, V.

    1996-11-01

    Immobilized cell reactors are known to permit the continuous operation without biomass washout and also for increasing the time available for cells` catalytic function in a reaction or in a series of reactions. Several cell immobilization supports have been used in different reactors for anaerobic wastewater treatment, such as: agar gel, acrylamide, porous ceramic, and polyurethane foam besides the self-immobilized biomass from UASB reactors. However, the results are not conclusive as to the advantages of these different reactors with different supports as compared to other anaerobic reactor configurations. This paper describes a new anaerobic attached growth reactor configuration, herein referred as horizontal-flow anaerobic immobilized sludge (HAIS) reactor and presents the results of its performance test treating kraft paper industry wastewater. The reactor configuration was conceived aiming to increase the ratio useful volume/total volume by lowering the volume for gas separation. The HAIS reactor conception would permit also to incorporate the reactor hydrodynamic characteristics in its design criteria if the flow pattern could be approximated as plug-flow.

  9. NASTRAN-based computer program for structural dynamic analysis of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Lobitz, D.W.

    1984-01-01

    This paper describes a computer program developed for structural dynamic analysis of horizontal axis wind turbines (HAWTs). It is based on the finite element method through its reliance on NASTRAN for the development of mass, stiffness, and damping matrices of the tower and rotor, which are treated in NASTRAN as separate structures. The tower is modeled in a stationary frame and the rotor in one rotating at a constant angular velocity. The two structures are subsequently joined together (external to NASTRAN) using a time-dependent transformation consistent with the hub configuration. Aerodynamic loads are computed with an established flow model based on strip theory. Aeroelastic effects are included by incorporating the local velocity and twisting deformation of the blade in the load computation. The turbulent nature of the wind, both in space and time, is modeled by adding in stochastic wind increments. The resulting equations of motion are solved in the time domain using the implicit Newmark-Beta integrator. Preliminary comparisons with data from the Boeing/NASA MOD2 HAWT indicate that the code is capable of accurately and efficiently predicting the response of HAWTs driven by turbulent winds.

  10. Underbalanced coiled-tubing-drilled horizontal well in the North Sea

    SciTech Connect (OSTI)

    Wodka, P.; Tirsgaard, H.; Damgaard, A.P.; Adamsen, C.J.

    1996-05-01

    Maersk Olie and Gas A/S (Maersk Oil) has drilled a 3,309-ft-long near-horizontal drainhole with coiled tubing to a total measured depth (MD) of 11,000 ft in the Danish sector of the North Sea. The well was completed in may 1994 as a 3{1/2}-in. openhole producer in the Gorm field chalk reservoir. Part of the well was drilled at underbalanced conditions, and oil production rates of up to 1,100 STB/D were reached during drilling. Conventional well-test equipment was used for handling returns. A nearby process facilities platform supplied lift gas and received the produced hydrocarbons during the drilling phase. Worth noting are the penetration of several chert layers, the fairly long reach, and the application of geosteering. Indications were that the well productivity was significantly improved compared with that of a conventionally drilled well, but problems were experienced with borehole stability in a fractured region.

  11. Experimental Investigation of Liquid-propellant Laser Propulsion with a Horizontal Momentum Measuring Lever

    SciTech Connect (OSTI)

    Wang Bin; Li Long; Tang Zhiping; Cai Jian

    2010-05-06

    Thrust performance of Liquid-propellant laser propulsion (LLP) is seriously influenced by factors like laser parameters, choice of propellants and ablation materials. For the purpose of studying these influences, series of impulse measuring experiments for various propellants and ablation materials were conducted. The key device is a Horizontal Momentum Measuring Lever, which covers a C{sub m} measuring range from 10{sup 3} Ns/MJ to about 1.6x10{sup 4} Ns/MJ. A Nd:YAG laser was used as the laser source. From the result, it is found that laser energy density plays an important role on LLP efficiency, higher energy density leads to higher C{sub m} and I{sub sp}. Highest C{sub m} of about 10{sup 4} Ns/MJ with the I{sub sp} of 3.57s was achieved by focusing the laser to the average energy density of 8.83x10{sup 8} W/cm{sup 2}. Besides of that, it is also found that when the energy density is certainly high, C{sub m} of LLP increases stably with the increase of the propellant thickness, which gives a potential way to further improve the thrust performance in LLP.

  12. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary Formations

    SciTech Connect (OSTI)

    Mike Bruno; Russell L. Detwiler; Kang Lao; Vahid Serajian; Jean Elkhoury; Julia Diessl; Nicky White

    2012-09-30

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. Terralog USA, in collaboration with the University of California, Irvine (UCI), are currently investigating advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. This two-year research project, funded by the US Department of Energy, includes combined efforts for: 1) Resource characterization; 2) Small and large scale laboratory investigations; 3) Numerical simulation at both the laboratory and field scale; and 4) Engineering feasibility studies and economic evaluations. The research project is currently in its early stages. This paper summarizes our technical approach and preliminary findings related to potential resources, small-scale laboratory simulation, and supporting numerical simulation efforts.

  13. Analysis of a Lifting Fixture to Hold a Steel Mandrel Horizontally from one End Support

    SciTech Connect (OSTI)

    Cease, H.; /Fermilab

    1999-04-07

    A lifting fixture (drawing number 3823.113-MD-372382) that lifts large steel mandrels from one end through the mandrel's end support web is described. The mandrels are used as a mold to form carbon fiber cylinders. The mandrels are held from one end to allow the carbon cylinder to be pulled horizontally off the mandrel. Only mandrels as described in drawing numbers 3823.113-MD-358992 and 3823.1 13-MD-358994 are lifted by the fixture. The largest mandrel is 41 inches in diameter, 120 inches long, and weighs approximately 3,000 lbs. A detailed procedure for removing the carbon cylinder from the steel mandrel is given in the Appendix. The fixture is to be supported only using Fermilab Forklift 10207 or equivalent. The forklift has a nameplate capacity of 12,000 lbs 24 inches from the mast at an elevation of 130 inches from the floor. The forklift forks must be removed from the truck prior to using the fixture. The forklift is to be used to support the mandrels only during the lifting operation and is not to be used to transport the mandrels. Stresses at the lifting fixture are shear stresses on the support brackets due to the overall weight of the mandrel and moment loads due to the cantilever style suppOrt. The moment on the forklift due to the overhanging weight of the mandrel is calculated. Stresses in the mandrel due to the method of support are also described.

  14. Technology assessment of vertical and horizontal air drilling potential in the United States. Final report

    SciTech Connect (OSTI)

    Carden, R.S.

    1993-08-18

    The objective of the research was to assess the potential for vertical, directional and horizontal air drilling in the United States and to evaluate the current technology used in air drilling. To accomplish the task, the continental United States was divided into drilling regions and provinces. The map in Appendix A shows the divisions. Air drilling data were accumulated for as many provinces as possible. The data were used to define the potential problems associated with air drilling, to determine the limitations of air drilling and to analyze the relative economics of drilling with air versus drilling mud. While gathering the drilling data, operators, drilling contractors, air drilling contractors, and service companies were contacted. Their opinion as to the advantages and limitations of air drilling were discussed. Each was specifically asked if they thought air drilling could be expanded within the continental United States and where that expansion could take place. The well data were collected and placed in a data base. Over 165 records were collected. Once in the data base, the information was analyzed to determine the economics of air drilling and to determine the limiting factors associated with air drilling.

  15. DOUBLE HORIZONTAL BRANCHES IN NGC 6440 AND NGC 6569 UNVEILED BY THE VVV SURVEY

    SciTech Connect (OSTI)

    Mauro, Francesco; Bidin, Christian Moni; Cohen, Roger; Geisler, Doug; Chene, Andre-Nicolas; Villanova, Sandro; Minniti, Dante; Catelan, Marcio

    2012-12-20

    We report the discovery of a peculiar horizontal branch (HB) in NGC 6440 and NGC 6569, two massive and metal-rich Galactic globular clusters (GGCs) located in the Galactic bulge, within 4 kpc from the Galactic center. In both clusters, two distinct clumps are detected at the level of the cluster HB, separated by only {approx}0.1 mag in the K{sub s} band. They were detected with IR photometric data collected with the 'VISTA Variables in the Via Lactea' Survey, and confirmed in independent IR catalogs available in the literature and Hubble Space Telescope optical photometry. Our analysis demonstrates that these clumps are real cluster features, not a product of field contamination or interstellar reddening. The observed split HBs could be a signature of two stellar sub-populations with different chemical composition and/or age, as recently found in Terzan 5, but it cannot be excluded that they are caused by evolutionary effects, in particular for NGC 6440. This interpretation, however, requires an anomalously high helium content (Y > 0.30). Our discovery suggests that such a peculiar HB morphology could be a common feature of massive, metal-rich bulge GGCs.

  16. Prediction and analysis of infra and low-frequency noise of upwind horizontal axis wind turbine using statistical wind speed model

    SciTech Connect (OSTI)

    Lee, Gwang-Se; Cheong, Cheolung

    2014-12-15

    Despite increasing concern about low-frequency noise of modern large horizontal-axis wind turbines (HAWTs), few studies have focused on its origin or its prediction methods. In this paper, infra- and low-frequency (the ILF) wind turbine noise are closely examined and an efficient method is developed for its prediction. Although most previous studies have assumed that the ILF noise consists primarily of blade passing frequency (BPF) noise components, these tonal noise components are seldom identified in the measured noise spectrum, except for the case of downwind wind turbines. In reality, since modern HAWTs are very large, during rotation, a single blade of the turbine experiences inflow with variation in wind speed in time as well as in space, breaking periodic perturbations of the BPF. Consequently, this transforms acoustic contributions at the BPF harmonics into broadband noise components. In this study, the ILF noise of wind turbines is predicted by combining Lowson’s acoustic analogy with the stochastic wind model, which is employed to reproduce realistic wind speed conditions. In order to predict the effects of these wind conditions on pressure variation on the blade surface, unsteadiness in the incident wind speed is incorporated into the XFOIL code by varying incident flow velocities on each blade section, which depend on the azimuthal locations of the rotating blade. The calculated surface pressure distribution is subsequently used to predict acoustic pressure at an observing location by using Lowson’s analogy. These predictions are compared with measured data, which ensures that the present method can reproduce the broadband characteristics of the measured low-frequency noise spectrum. Further investigations are carried out to characterize the IFL noise in terms of pressure loading on blade surface, narrow-band noise spectrum and noise maps around the turbine.

  17. U.S. Hydropower Potential from Existing Non-powered Dams | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy U.S. Hydropower Potential from Existing Non-powered Dams U.S. Hydropower Potential from Existing Non-powered Dams U.S. Hydropower Potential from Existing Non-powered Dams

  18. Method of generating a surface mesh

    DOE Patents [OSTI]

    Shepherd, Jason F.; Benzley, Steven; Grover, Benjamin T.

    2008-03-04

    A method and machine-readable medium provide a technique to generate and modify a quadrilateral finite element surface mesh using dual creation and modification. After generating a dual of a surface (mesh), a predetermined algorithm may be followed to generate and modify a surface mesh of quadrilateral elements. The predetermined algorithm may include the steps of generating two-dimensional cell regions in dual space, determining existing nodes in primal space, generating new nodes in the dual space, and connecting nodes to form the quadrilateral elements (faces) for the generated and modifiable surface mesh.

  19. System to acquire and monitor operating machinery positions for horizontal coke oven batteries

    SciTech Connect (OSTI)

    Bierbaum, D.; Teschner, W.

    1980-02-26

    In a horizontal coke oven battery with at least one coke receiving device movable along one longitudinal side of the battery and at least one coke driving device movable along an opposite longitudinal side of the battery, an apparatus is disclosed for determining the relative position of the coke receiving device with respect to the coke driving device and for activating the coke driving device when its position corresponds with that of the coke receiving device. A first wheel is mounted on the coke receiving device for rotation with the movement of the coke receiving device, a first angle encoder is connected to the first wheel for producing a first signal corresponding to the location of the first wheel and the position of the coke receiving device along the coke oven, and an input storage in the form of a magnetic disc is connected to the first angle encoder for recording and storing the signal. A second wheel is mounted on the coke driving device for rotation with the movement of the coke driving device and a second angle encoder is connected thereto for producing a second signal which corresponds to the rotation of the second wheel and the position of the coke driving device along the coke oven. A comparator is connected to the second signal encoder for receiving the second signal and a data link is provided between the comparator and the input storage of the coke receiving device so that the first signal from the coke receiving device can be impressed on the comparator. An activator is connected to the comparator for activating the coke driving device when the first signal corresponds to the second signal indicating a corresponding positional relationship between the coke receiving device and the coke driving device.

  20. Global and nonglobal parameters of horizontal-branch morphology of globular clusters

    SciTech Connect (OSTI)

    Milone, A. P.; Marino, A. F.; Dotter, A.; Norris, J. E.; Jerjen, H.; Asplund, M. E-mail: amarino@mso.anu.edu.au E-mail: jerjen@mso.anu.edu.au; and others

    2014-04-10

    The horizontal-branch (HB) morphology of globular clusters (GCs) is mainly determined by metallicity. However, the fact that GCs with almost the same metallicity exhibit different HB morphologies demonstrates that at least one more parameter is needed to explain the HB morphology. It has been suggested that one of these should be a global parameter that varies from GC to GC and the other a nonglobal parameter that varies within the GC. In this study we provide empirical evidence corroborating this idea. We used the photometric catalogs obtained with the Advanced Camera for Surveys of the Hubble Space Telescope and analyze the color-magnitude diagrams of 74 GCs. The HB morphology of our sample of GCs has been investigated on the basis of the two new parameters L1 and L2 that measure the distance between the red giant branch and the coolest part of the HB and the color extension of the HB, respectively. We find that L1 correlates with both metallicity and age, whereas L2 most strongly correlates with the mass of the hosting GC. The range of helium abundance among the stars in a GC, characterized by ΔY and associated with the presence of multiple stellar populations, has been estimated in a few GCs to date. In these GCs we find a close relationship among ΔY, GC mass, and L2. We conclude that age and metallicity are the main global parameters, while the range of helium abundance within a GC is the main nonglobal parameter defining the HB morphology of Galactic GCs.

  1. Integrated approach towards the application of horizontal wells to improve waterflooding performance. 1995 annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1996-06-01

    This annual report describes the progress during the third year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially dominated deltaic geological environments. The project involves using an integrated approach to characterize the reservoir followed by proposing an appropriate reservoir management strategy to improve the field performance. In the first stage of the project, the type of data we integrated include cross borehole seismic surveys, geological interpretation based on the logs and the cores, and the engineering information. In contrast, during the second stage of the project, we intend to use only conventional data to construct the reservoir description. This report covers the results of the implementation from the first stage of the project. It also discusses the work accomplished so far for the second stage of the project. The preliminary results look promising from the field implementation. The production from the Self Unit (location of Stage I) has increased by 35 bbls/day with additional increase anticipated with further implementation. Based on our understanding of the first stage, we hope to examine a greater area of the Glenn Pool field for additional increase in production. We have collected available core and log data and have finished the initial geological description. Although not a direct part of this project, we also have initiated a 3-D seismic survey of the area which should help us in improving the reservoir description.

  2. Optimal measurement of surface shortwave irradiance using current instrumentation -- the ARM experience

    SciTech Connect (OSTI)

    Michalsky, J.; Rubes, M.; Stoffel, T.; Wesley, M.; Splitt, M.; DeLuisi, J.

    1997-03-01

    Shortwave (solar) measurements of surface irradiance for clear sky conditions disagree with a number of different models. Betts used the European Center for Medium-range Forecasts (ECMWF) shortwave model to calculate surface irradiance that were 5-10 percent higher than measurements. Wild used a different formulation of the ECMWF shortwave model, but found that the model overpredicted clear-sky shortwave and average of 3 percent. Ding and Wang used data from the Atmospheric Radiation Measurement (ARM) program and found that the GENESIS GCM shortwave model, likewise, overpredicted clear-sky irradiance by about 4 percent. To help resolve the measurement dilemma, reference instruments were deployed in April 1996 at the Southern Great Plains ARM site central facility very near the shortwave measurements. The rest of the paper describes the experiment undertaken to ascertain total horizontal shortwave irradiance at the surface, including a separation of the direct normal and diffuse horizontal components. Results and a discussion of same concludes the paper.

  3. An application utilizing horizontal re-entries versus waterflooding for depleting a mid-life Niagaran Reef

    SciTech Connect (OSTI)

    Pieters, D.A.; Pearce, L.A.

    1996-12-31

    Waterflooding has been the preferred secondary recovery technique for mid-life Michigan Niagaran reefs that were large enough to economically warrant it. Since these pinnacle reefs average 50-550 acres, the success in waterflooding such a limited space has been a hit or miss proposition depending on the pinpoint accuracy in locating injector and producer. This paper presents a case history for the Colfax 25 reef where five horizontal drainholes were positioned across the field in a pattern to access and drain all areas of the reservoir. This particular reef was chosen based on identified incremental reserves, areal extent and on past production history which displayed reservoir characteristics that were favorable for horizontal wells. The application was tremendously successful. Production in all wells doubled as gas oil ratios were significantly reduced. Start-up costs were slightly below those of a conventional water flood and operating costs were substantially lower than would be incurred for a waterflood.

  4. Growth and transfer of monolithic horizontal nanowire superstructures onto flexible substrates

    DOE Patents [OSTI]

    Wang, Zhong L; Xu, Sheng

    2013-08-27

    In a method of making a monolithic elongated nanowire, a mask polymer layer is applied to a selected crystal surface of a seed crystal. A plurality of spaced apart elongated openings is defined through the mask polymer layer, thereby exposing a corresponding plurality of portions of the crystal surface. The openings are disposed so as to be aligned with and parallel to a selected crystal axis of the seed crystal. The portions of the crystal surface are subjected to a chemical nutrient environment that causes crystalline material to grow from the plurality of portions for at least a period of time so that monocrystalline members grow from the elongated openings and until the monocrystalline members laterally expand so that each monocrystalline member grows into and merges with an adjacent one of the monocrystalline members, thereby forming a monolithic elongated nanowire.

  5. Statement from Energy Secretary Ernest Moniz on Proposed New EPA Rules for Existing Power Plants

    Broader source: Energy.gov [DOE]

    Energy Secretary Ernest Moniz's statement on the EPA's proposed new rules for existing power plants.

  6. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Annual report, April 1994--June 1995

    SciTech Connect (OSTI)

    Wood, J.

    1995-08-01

    Crystal Field in Montcalm County, MI, was selected as a field trial site for this project. Analysis of production data for Crystal Field suggests that an additional 200,000 bbls of oil can be produced using one strategically located horizontal well. Total addition production from the Crystal Field could be as much as 6--8 MMBO. Application of the technology developed in this project to other Dundee fields in the area has the potential to increase Dundee production in Michigan by 35%, adding 80--100 MMBO to ultimate recovery. This project will demonstrate through a field trial that horizontal wells can be substantially increase oil production in older reservoirs that are at or near their economic limit. To maximize the potential of the horizontal well and to ensure that a comprehensive evaluation can be made, extensive reservoir characterization will be performed. In addition to the proposed field trial at Crystal Field, 29 additional Dundee fields in a seven-county area have been selected for study in the reservoir characterization portion of this project.

  7. Evaluation of global horizontal irradiance to plane-of-array irradiance models at locations across the United States

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lave, Matthew; Hayes, William; Pohl, Andrew; Hansen, Clifford W.

    2015-02-02

    We report an evaluation of the accuracy of combinations of models that estimate plane-of-array (POA) irradiance from measured global horizontal irradiance (GHI). This estimation involves two steps: 1) decomposition of GHI into direct and diffuse horizontal components and 2) transposition of direct and diffuse horizontal irradiance (DHI) to POA irradiance. Measured GHI and coincident measured POA irradiance from a variety of climates within the United States were used to evaluate combinations of decomposition and transposition models. A few locations also had DHI measurements, allowing for decoupled analysis of either the decomposition or the transposition models alone. Results suggest that decompositionmore » models had mean bias differences (modeled versus measured) that vary with climate. Transposition model mean bias differences depended more on the model than the location. Lastly, when only GHI measurements were available and combinations of decomposition and transposition models were considered, the smallest mean bias differences were typically found for combinations which included the Hay/Davies transposition model.« less

  8. Role of horizontal gene transfer as a control on the coevolution of ribosomal proteins and the genetic code

    SciTech Connect (OSTI)

    Woese, Carl R.; Goldenfeld, Nigel; Luthey-Schulten, Zaida

    2011-03-31

    Our main goal is to develop the conceptual and computational tools necessary to understand the evolution of the universal processes of translation and replication and to identify events of horizontal gene transfer that occurred within the components. We will attempt to uncover the major evolutionary transitions that accompanied the development of protein synthesis by the ribosome and associated components of the translation apparatus. Our project goes beyond standard genomic approaches to explore homologs that are represented at both the structure and sequence level. Accordingly, use of structural phylogenetic analysis allows us to probe further back into deep evolutionary time than competing approaches, permitting greater resolution of primitive folds and structures. Specifically, our work focuses on the elements of translation, ranging from the emergence of the canonical genetic code to the evolution of specific protein folds, mediated by the predominance of horizontal gene transfer in early life. A unique element of this study is the explicit accounting for the impact of phenotype selection on translation, through a coevolutionary control mechanism. Our work contributes to DOE mission objectives through: (1) sophisticated computer simulation of protein dynamics and evolution, and the further refinement of techniques for structural phylogeny, which complement sequence information, leading to improved annotation of genomic databases; (2) development of evolutionary approaches to exploring cellular function and machinery in an integrated way; and (3) documentation of the phenotype interaction with translation over evolutionary time, reflecting the system response to changing selection pressures through horizontal gene transfer.

  9. Feasibility of Optimizing Recovery and Reserves from a Mature and Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling and Completion of a Trilateral Horizontal Well, Class III

    SciTech Connect (OSTI)

    Pacific Operators Offshore, Inc.

    2001-04-04

    The intent of this project was to increase production and extend the economic life of this mature field through the application of advanced reservoir characterization and drilling technology, demonstrating the efficacy of these technologies to other small operators of aging fields. Two study periods were proposed; the first to include data assimilation and reservoir characterization and the second to drill the demonstration well. The initial study period showed that a single tri-lateral well would not be economically efficient in redevelopment of Carpinteria's multiple deep water turbidite sand reservoirs, and the study was amended to include the drilling of a series of horizontal redrills from existing surplus well bores on Pacific Operators' Platform Hogan.

  10. Method for measuring surface temperature

    DOE Patents [OSTI]

    Baker, Gary A.; Baker, Sheila N.; McCleskey, T. Mark

    2009-07-28

    The present invention relates to a method for measuring a surface temperature using is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

  11. Dartmouth Stellar Evolution Database and the ACS Survey of Galactic Globular Clusters II. Stellar Evolution Tracks, Isochrones, Luminosity Functions, and Synthetic Horizontal-Branch Models

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Dotter, A; Chaboyer, B; Jevremovic, D; Kostov, V; Baron, E; Ferguson, J; Sarajedini, A; Anderson, J

    Web tools are also available at the home page (http://stellar.dartmouth.edu/~models/index.html). These tools allow users to create isochrones and convert them to luminosity functions or create synthetic horizontal branch models.

  12. Sweet Surface Area

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sweet Surface Area Sweet Surface Area Create a delicious root beer float and learn sophisticated science concepts at the same time. Sweet Surface Area Science is all around us, so ...

  13. Mesquite Solar Plan - build out next to existing FF plants Solar...

    Open Energy Info (EERE)

    Mesquite Solar Plan - build out next to existing FF plants Solar Power Plant Jump to: navigation, search Name Mesquite Solar Plan - build out next to existing FF plants Solar Power...

  14. Building America Whole-House Solutions for Existing Homes: 56th...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Whole-House Solutions for Existing Homes: 56th and Walnut: A Philly Gut Rehab Development Building America Whole-House Solutions for Existing Homes: 56th and ...

  15. On existence of solitary waves in unmagnetized neutral hot pair plasma

    SciTech Connect (OSTI)

    Xie, Bai-Song; Li, Zi-Liang; Lu, Ding; Sang, Hai-Bo

    2013-11-15

    Whether the solitary waves exist in unmagnetized neutral hot pair plasma is considered. It is found that for small electrons and positrons longitudinal momentum the solitary waves do not exist under the quasi-static approximation.

  16. Mass transport of tungsten and molybdenum during production of leucosapphire by horizontal directional crystallization

    SciTech Connect (OSTI)

    Samsonov, A.L.

    1986-05-01

    This paper investigates the mass-transport mechanism of tungsten and molybdenum in the heating unit of an apparatus of the SGVK-Sapphire type, intended for producing leucosapphire by the HDC method. Logarithms of the constants for reactions are presented. However high compared to tungsten oxides, the volatility of molybdenum oxides is determined by the considerable range of mass transport. A possible reason for the co-deposition of amorphous deposit of Mo and Al/sub 2/O/sub 3/ surface from dissociation in the system is examined.

  17. Development of more efficient impellers for horizontal axis windmills. Final report, October 1, 1980-April 30, 1982

    SciTech Connect (OSTI)

    Fosdick, G.A. Jr.

    1982-01-01

    The purpose of the project reported has been the development of a wind turbine incorporating a new concept in horizontal-axis impellers. The impeller consists of six rows of radial blades arranged to extend in a spiral covering 55/sup 0/ of arc about a hollow support section. Each blade in the rows is contoured to receive both direct flow pressure as well as airfoil lift in order to provide maximum energy transfers from low velocity airflows such as those normally found in most localities throughout the country most of the time. A disclosure of the wind turbine configuration is attached. (LEW)

  18. Commissioning of horizontal-bend superconducting magnet for Jefferson Lab's 11-GeV super high momentum spectrometer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sun, Eric; Brindza, Paul D.; Lassiter, Steven R.; Fowler, Mike J.; Fenker, Howard C.; DeKamp, Jon C.

    2016-03-02

    Commissioning characteristics of the Superconducting High Momentum Spectrometer (SHMS) Horizontal Bend (HB) magnet was presented. Pre-commissioning peer review of the magnet uncovered issues with eddy currents in the thermal shield, resulting in additional testing and modeling of the magnet. A three-stage test plan was discussed. A solution of using a small dump resistor and a warm thermal shield was presented. Analyses illustrated that it was safe to run the magnet to full test current. As a result, the HB magnet was successfully cooled to 4 K and reached its maximum test current of 4000 A.

  19. Preliminary analysis of the audible noise of constant-speed, horizontal-axis wind-turbine generators

    SciTech Connect (OSTI)

    Keast, D. N.; Potter, R. C.

    1980-07-01

    An analytical procedure has been developed for calculating certain aerodynamic sound levels produced by large, horizontal-axis wind-turbine generators (WTG's) such as the DOE/NASA Mods-0, -0A, -1, and -2. This preliminary procedure is based upon very limited field data from the Mod-0. It postulates a noise component due to the (constant) rotation of the blades of the WTG, plus a wake-noise component that increases with the square of the power produced by the WTG. Mechanical sound from machinery, and low-frequency impulsive sounds produced by blade interaction with the wake of the support tower are not considered.

  20. Energy penalty analysis of possible cooling water intake structurerequirements on existing coal-fired power plants.

    SciTech Connect (OSTI)

    Veil, J. A.; Littleton, D. J.; Gross, R. W.; Smith, D. N.; Parsons, E.L., Jr.; Shelton, W. W.; Feeley, T. J.; McGurl, G. V.

    2006-11-27

    Section 316(b) of the Clean Water Act requires that cooling water intake structures must reflect the best technology available for minimizing adverse environmental impact. Many existing power plants in the United States utilize once-through cooling systems to condense steam. Once-through systems withdraw large volumes (often hundreds of millions of gallons per day) of water from surface water bodies. As the water is withdrawn, fish and other aquatic organisms can be trapped against the screens or other parts of the intake structure (impingement) or if small enough, can pass through the intake structure and be transported through the cooling system to the condenser (entrainment). Both of these processes can injure or kill the organisms. EPA adopted 316(b) regulations for new facilities (Phase I) on December 18, 2001. Under the final rule, most new facilities could be expected to install recirculating cooling systems, primarily wet cooling towers. The EPA Administrator signed proposed 316(b) regulations for existing facilities (Phase II) on February 28, 2002. The lead option in this proposal would allow most existing facilities to achieve compliance without requiring them to convert once-through cooling systems to recirculating systems. However, one of the alternate options being proposed would require recirculating cooling in selected plants. EPA is considering various options to determine best technology available. Among the options under consideration are wet-cooling towers and dry-cooling towers. Both types of towers are considered to be part of recirculating cooling systems, in which the cooling water is continuously recycled from the condenser, where it absorbs heat by cooling and condensing steam, to the tower, where it rejects heat to the atmosphere before returning to the condenser. Some water is lost to evaporation (wet tower only) and other water is removed from the recirculating system as a blow down stream to control the building up of suspended and

  1. Letter Report: Borehole Flow and Horizontal Hydraulic Conductivity with Depth at Well ER-12-4

    SciTech Connect (OSTI)

    Phil L. Oberlander; Charles E. Russell

    2005-12-31

    Borehole flow and fluid temperature during pumping were measured at well ER-12-4 at the Nevada Test Site in Nye County, Nevada. This well was constructed to characterize the carbonate aquifer. The well is cased from land surface to the total depth at 1,132 m (3,713 ft bgs) below ground surface (bgs). The screened section of the well consists of alternating sections of slotted well screen and blank casing from 948 to 1,132 m bgs (3,111 to 3,713 ft bgs). Borehole flow velocity (LT-1) with depth was measured with an impeller flowmeter from the top of the screened section to the maximum accessible depth while the well was pumped and under ambient conditions. A complicating factor to data interpretation is that the well was not filter packed and there is upward and downward vertical flow in the open annulus under ambient and pumping conditions. The open annulus in the well casing likely causes the calculated borehole flow rates being highly nonrepresentative of inflow from the formation. Hydraulic conductivities calculated under these conditions would require unsupportable assumptions and would be subject to very large uncertainties. Borehole hydraulic conductivities are not presented under these conditions.

  2. Horizontal-Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures

    SciTech Connect (OSTI)

    Pichugina, Yelena L.; Banta, Robert M.; Kelley, Neil D.; Jonkman, Bonnie J.; Tucker, Sara C.; Newsom, Rob K.; Brewer, W. A.

    2008-08-01

    Quantitative data on turbulence variables aloft--above the region of the atmosphere conveniently measured from towers--has been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise velocity variances obtained from NOAA’s High Resolution Doppler Lidar (HRDL), which have been shown to be numerically equivalent to turbulence kinetic energy (TKE) for stable conditions, are a measure of the turbulence in the SBL. In the present study, the mean horizontal wind component U and variance ?u2 were computed from HRDL measurements of the line-of-sight (LOS) velocity using a technique described in Banta, et al. (2002). The technique was tested on datasets obtained during the Lamar Low-Level Jet Project (LLLJP) carried out in early September 2003, near the town of Lamar in southeastern Colorado. This paper compares U with mean wind speed obtained from sodar and sonic anemometer measurements. It then describes several series of averaging tests that produced the best correlation between TKE calculated from sonic anemometer data at several tower levels and lidar measurements of horizontal velocity variance ?u2. The results show high correlation (0.71-0.97) of the mean U and average wind speed measured by sodar and in-situ instruments, independent of sampling strategies and averaging procedures. Comparison of estimates of variance, on the other hand, proved sensitive to both the spatial and temporal averaging techniques.

  3. Characterization study of lower Lagunillas member, Block IV, Lake Maracaibo. Application of horizontal well to revive a mature oil field

    SciTech Connect (OSTI)

    Coll, C.; Gamero, H.; Jimenez, Z. )

    1996-01-01

    The Lower Lagunillas is one of the largest reservoirs in Venezuela located in Block IV in the Lake Maracaibo Basin in Zulia State in Western Venezuela. The estimated remaining reserves are 270 MMSTB. A multidisciplinary, integrated reservoir characterization study was performed to evaluate reservoir heterogeneity and fluid flow dynamics in fine scale. The majority of the remaining reserves are in the form of oil bypassed in the low resistivity pay zones. These zones were identified by the now core-log calibration performed in this area. Significant pressure decline from the initial 4200 psi to 1400 psi has prompted us to explore new development strategy of selective drilling of horizontal wells. A key step in the study was acquisition and integration of new geoscience, well log and pressure data. The available geology, geophysics, sedimentology and petrophysics were integrated and loaded on to a 3-D visualization package for correlating and validating the various lithofacies with petrophysics and sedimentology. The resulting reservoir model was exported to a flow simulator for developing a dynamic simulation model. A target layer was selected based on the results of the characterization study and risk assessment strategy. A pilot well was drilled in the reservoir to acquire new data and information. These information were processed to evaluate the borehole stability, petrophysical properties, location of the fluid phases, pressure behavior and target zone. The processed data were utilized to confirm the location and to develop the completion diagram of the horizontal well.

  4. A study of pitch oscillation and roughness on airfoils used for horizontal axis wind turbines

    SciTech Connect (OSTI)

    Gregorek, G.M.; Hoffmann, M.J.; Ramsay, R.R.; Janiszewska, J.M. [Ohio State Univ., Columbus, OH (United States)

    1995-12-01

    Under subcontract XF-1-11009-3 the Ohio State University Aeronautical and Astronautical Research Laboratory (OSU/AARL) with the National Renewable Energy Laboratory (NREL) developed an extensive database of empirical aerodynamic data. These data will assist in the development of analytical models and in the design of new airfoils for wind turbines. To accomplish the main objective, airfoil models were designed, built and wind tunnel tested with and without model leading edge grit roughness (LEGR). LEGR simulates surface irregularities due to the accumulation of insect debris, ice, and/or the aging process. This report is a summary of project project activity for Phase III, which encompasses the time period from September 17, 1 993 to September 6, 1 994.

  5. Evaluation of existing wells at the Nevada Test Site for plugging and abandonment or for recompletion as monitoring wells

    SciTech Connect (OSTI)

    Gillespie, D.; Donithan, D.; Seaber, P.

    1996-09-01

    In this investigation, various information sources from the Nevada Test Site (NTS), national laboratories and the Desert Research Institute were utilized to verify the existence of approximately 250 existing wells or boreholes at the NTS. Of these wells, 40 were determined to be located within one kilometer of underground nuclear tests conducted near (within 25 m) or below the water table. These 40 existing wells were then investigated in detail to determine their drilling and construction history, lithology and hydrologic units penetrated, and current conditions. These findings are presented for each well, as well as recommendations as to whether individual wells should be plugged and abandoned or could possibly be recompleted as groundwater quality monitoring locations. Two of the 40 wells, UE-20e and UE-2a, contain lost drilling strings and do not penetrate aquifers. These two wells should be plugged and abandoned and removed from the NTS well inventory. Three other wells, TestWell No. 1, TestWell No. 5, and TestWell No. 6, are reported stemmed with sand to the surface. These three wells did not penetrate the water table and would require substantial deepening to be recompleted as groundwater monitoring locations. If not recompleted, these wells should also be plugged and abandoned and removed from the NTS well inventory. Eleven of the 34 wells, Test Well No. 7, RNM No. 1, RNM No. 2, RNM No. 2S, U-3cn No. 5, UE-20n No. 1, UE-7ns, UE-5n, UE-4t, UE-3e No. 3 and U-15k Test Hole, penetrate aquifers and do not require recompletion to produce groundwater monitoring locations. These wells are either constructed such that recompletion is not needed or not possible. Several of the 11 wells may require the removal of tubing and the placement or replacement of pump equipment. All five of the wells require wellhead rehabilitation to ensure they are not contaminated by surface water or other materials.

  6. COMPARISON OF SOLAR SURFACE FLOWS INFERRED FROM TIME-DISTANCE HELIOSEISMOLOGY AND COHERENT STRUCTURE TRACKING USING HMI/SDO OBSERVATIONS

    SciTech Connect (OSTI)

    Svanda, Michal; Roudier, Thierry; Rieutord, Michel; Burston, Raymond; Gizon, Laurent

    2013-07-01

    We compare measurements of horizontal flows on the surface of the Sun using helioseismic time-distance inversions and coherent structure tracking of solar granules. Tracking provides two-dimensional horizontal flows on the solar surface, whereas the time-distance inversions estimate the full three-dimensional velocity flows in the shallow near-surface layers. Both techniques use Helioseismic and Magnetic Imager observations as input. We find good correlations between the various measurements resulting from the two techniques. Further, we find a good agreement between these measurements and the time-averaged Doppler line-of-sight velocity, and also perform sanity checks on the vertical flow that resulted from the three-dimensional time-distance inversion.

  7. Fine-scale Horizontal Structure of Arctic Mixed-Phase Clouds.

    SciTech Connect (OSTI)

    Rambukkange,M.; Verlinde, J.; Elorante, E.; Luke, E.; Kollias, P.; Shupe, M.

    2006-07-10

    Recent in situ observations in stratiform clouds suggest that mixed phase regimes, here defined as limited cloud volumes containing both liquid and solid water, are constrained to narrow layers (order 100 m) separating all-liquid and fully glaciated volumes (Hallett and Viddaurre, 2005). The Department of Energy Atmospheric Radiation Measurement Program's (DOE-ARM, Ackerman and Stokes, 2003) North Slope of Alaska (NSA) ARM Climate Research Facility (ACRF) recently started collecting routine measurement of radar Doppler velocity power spectra from the Millimeter Cloud Radar (MMCR). Shupe et al. (2004) showed that Doppler spectra has potential to separate the contributions to the total reflectivity of the liquid and solid water in the radar volume, and thus to investigate further Hallett and Viddaurre's findings. The Mixed-Phase Arctic Cloud Experiment (MPACE) was conducted along the NSA to investigate the properties of Arctic mixed phase clouds (Verlinde et al., 2006). We present surface based remote sensing data from MPACE to discuss the fine-scale structure of the mixed-phase clouds observed during this experiment.

  8. DOE Seeks Further Public Input on How Best To Streamline Existing

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Regulations | Department of Energy Further Public Input on How Best To Streamline Existing Regulations DOE Seeks Further Public Input on How Best To Streamline Existing Regulations December 7, 2011 - 12:34pm Addthis The Department of Energy (DOE) has announced a further step to implementing the President's Executive Order on Improving Regulatory Review. The Executive Order directs federal agencies to review existing regulations and determine whether they are still necessary and crafted

  9. DOE Seeks Public Views On How Best To Streamline Existing Regulations |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Public Views On How Best To Streamline Existing Regulations DOE Seeks Public Views On How Best To Streamline Existing Regulations January 31, 2011 - 5:53pm Addthis The Department of Energy today announced two immediate steps to implement the Obama Administration's Executive Order on Improving Regulation and Regulatory Review, which directs federal agencies to review existing regulations and determine whether they are still necessary and crafted effectively to solve

  10. 2016 Guiding Principles for Sustainable Federal Buildings Updates Crosswalks: Existing Buildings

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Existing Buildings Prepared by the U.S. Department of Energy Federal Energy Management Program May 2016 2016 vs 2008 Guiding Principles for Sustainable Federal Buildings Crosswalk: Existing Buildings Exisiting Buildings i 2016 Guiding Principles for Sustainable Federal Buildings Comparison to 2008 version: Existing Buildings Executive Order 13693, Planning for Federal Sustainability in the Next Decade, March 19, 2015, called for revisions to the Guiding Principles for Sustainable Federal

  11. Fluorinated silica microchannel surfaces

    DOE Patents [OSTI]

    Kirby, Brian J.; Shepodd, Timothy Jon

    2005-03-15

    A method for surface modification of microchannels and capillaries. The method produces a chemically inert surface having a lowered surface free energy and improved frictional properties by attaching a fluorinated alkane group to the surface. The coating is produced by hydrolysis of a silane agent that is functionalized with either alkoxy or chloro ligands and an uncharged C.sub.3 -C.sub.10 fluorinated alkane chain. It has been found that the extent of surface coverage can be controlled by controlling the contact time from a minimum of about 2 minutes to a maximum of 120 minutes for complete surface coverage.

  12. Existence and uniqueness of domain wall solitons in a Maxwell–Chern–Simons model

    SciTech Connect (OSTI)

    Zhang, Ruifeng; College of Mathematics and Information Science, Henan University, Kaifeng 475001 ; Li, Fangfang

    2014-02-15

    We present some sharp existence and uniqueness theorems for the domain wall solutions of the basic governing equations of a self-dual Maxwell–Chern–Simons model.

  13. Building America Whole-House Solutions for Existing Homes: 56th...

    Energy Savers [EERE]

    America Whole-House Solutions for Existing Homes: 56th and Walnut: A Philly Gut Rehab Development In this project, CPM partnered with the Consortium for Advanced Residential...

  14. Existing Commercial Reference Buildings Constructed In or After 1980 — Archive

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location.

  15. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2002-01-16

    Work associated with Budget Period 1 of the East Binger (Marchand) Unit project is nearing completion. A major aspect of this project is accurate modeling of the performance of horizontal wells. Well EBU 37-3H, the first horizontal well drilled in the unit, was drilled in the second quarter of 2001. After much difficulty establishing economic production from the well, the well was hydraulically fractured in November 2001. Post-treatment production has been very encouraging and is significantly better than a vertical well drilled in a similar setting. International Reservoir Technologies, Inc. has completed the final history match of the pilot area reservoir simulation model, including tuning to the performance of the horizontal well. The model's predicted reservoir pressure gradient between injection and production wells accurately matches observed data from the field, a significant improvement from prior model predictions. The model's predicted gas injection profiles now also more accurately match field data. Work has begun toward evaluating the optimum development scenario with the pilot model. Initially, four scenarios will be evaluated--two involving all horizontal infill wells, one involving all vertical infill wells, and one involving a combination of vertical and horizontal infill wells. The model cases for these scenarios have been defined, and construction of them is underway.

  16. Swimming motility reduces Azotobacter vinelandii deposition to silica surfaces

    SciTech Connect (OSTI)

    Lu, Nanxi; Massoudieh, Arash; Liang, Xiaomeng; Hu, Dehong; Kamai, Tamir; Ginn, Timothy R.; Zilles, Julie L.; Nguyen, Thanh H.

    2015-09-16

    The role of swimming motility on bacterial transport and fate in porous media was evaluated. We present microscopic evidence showing that strong swimming motility reduces attachment of Azotobacter vinelandii cells to silica surfaces. Applying global and cluster statistical analyses to microscopic videos taken under non-flow conditions, wild type, flagellated A. vinelandii strain DJ showed strong swimming ability with an average speed of 13.1 ?m/s, DJ77 showed impaired swimming averaged at 8.7 ?m/s, and both the non-flagellated JZ52 and chemically treated DJ cells were non-motile. Quantitative analyses of trajectories observed at different distances above the collector of a radial stagnation point flow cell (RSPF) revealed that both swimming and non-swimming cells moved with the flow when at a distance of at least 20 ?m from the collector surface. Near the surface, DJ cells showed both horizontal and vertical movement diverging them from reaching surfaces, while chemically treated DJ cells moved with the flow to reach surfaces, suggesting that strong swimming reduced attachment. In agreement with the RSPF results, the deposition rates obtained for two-dimensional multiple-collector micromodels were also lowest for DJ, while DJ77 and JZ52 showed similar values. Strong swimming specifically reduced deposition on the upstream surfaces of the micromodel collectors.

  17. Surface Radiation from GOES: A Physical Approach; Preprint

    SciTech Connect (OSTI)

    Habte, A.; Sengupta, M.; Wilcox, S.

    2012-09-01

    Models to compute Global Horizontal Irradiance (GHI) and Direct Normal Irradiance (DNI) have been in development over the last 3 decades. These models can be classified as empirical or physical, based on the approach. Empirical models relate ground based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the radiation received from the earth at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a 4 km GHI and DNI product every 30 minutes. This paper presents an outline of the methodology and a comprehensive validation using high quality ground based solar data from the National Oceanic and Atmospheric Administration (NOAA) Surface Radiation (SURFRAD) (http://www.srrb.noaa.gov/surfrad/sitepage.html) and Integrated Surface Insolation Study (ISIS) http://www.srrb.noaa.gov/isis/isissites.html), the Solar Radiation Research Laboratory (SRRL) at National Renewable Energy Laboratory (NREL), and Sun Spot One (SS1) stations.

  18. Contribution to the Study of Ferrite Nanobeads: Synthesis, Characterization and Investigation of Horizontal Low Gradient Magnetophoresis Behaviour

    SciTech Connect (OSTI)

    Benelmekki, Maria; Caparros, Cristina; Goncalves, Renao; Lanceros-Mendez, Senenxu; Montras, Anna; Martinez, Lluis Miquel

    2010-12-02

    In this work we investigate the possibilities of the use of Horizontal Low Gradient Magnetic Field (HLGMF)(<100 T/m) for filtration, control and separation of the synthesized magnetic particles, considering, the characteristics of the suspension, the size and the type of nanoparticles (NPs) and focusing on the process scale up. Reversible aggregation is considered in the different steps of magnetic nanobeads synthesis. For these purpose, we synthesized Fe{sub 2}O{sub 3}-silica core-shell nanobeads by co-precipitation, monodispersion and silica coating. SQUID, TEM, XRD, and Zeta potential techniques were used to characterize the synthesized nanobeads. An extensive magnetophoresis study was performed at different magnetophoretic conditions. Different reversible aggregation times were observed at different HLGMF, at each step of the synthesis route: Several orders of magnitude differences where observed when comparing citric acid (CA) suspension with silicon coated beads. Reversible aggregation times are correlated with the properties of the NPs at different steps of synthesis.

  19. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, M. J.; Li, Y.; Sale, D. C.

    2011-10-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  20. Feasibility study of air-breathing turbo-engines for horizontal take-off and landing space plane

    SciTech Connect (OSTI)

    Minoda, M.; Sakata, K.; Tamaki, T.; Saitoh, T.; Yasuda, A.

    1989-01-01

    Various concepts of air-breathing engines (ABEs) that could be used for a horizontal take-off and landing SSTO vehicle are investigated. The performances (with respect to thrust and the specific fuel consumption) of turboengines based on various technologies, including a turbojet with and without afterburner (TJ), turboramjet, and air-turbo-ram jet engines are compared. The mission capabilities of these ABEs for SSTO and TSTO vehicles is examined in terms of the ratio of the effective remaining weight (i.e., the weight on the orbit) to the take-off gross weight, using two-dimensional flight analysis. It was found that the dry TJ with the turbine inlet temperature 2000 C is one of the most promising candidates for the propulsion system of the SSTO vehicle, because of its small weight and high specific impulse. 6 refs.

  1. Design of a horizontal test cryostat for superconducting RF cavities for the FREIA facility at Uppsala University

    SciTech Connect (OSTI)

    Chevalier, N. R.; Thermeau, J.-P.; Bujard, P.; Junquera, T.; Hermansson, L.; Kern, R. Santiago; Ruber, R.

    2014-01-29

    Uppsala University is constructing a large scale facility, called FREIA (Facility for Research Instrumentation and Accelerator Development). FREIA includes a helium liquefier and an accelerator test facility and has the capacity to test superconducting radio-frequency (RF) cavities with the same RF system and RF power level as in an accelerator. A central element of FREIA is a horizontal test cryostat connected in closed loop to a helium liquefier. This cryostat can house two fully equipped (tuners, piezo, power coupler, helium tank) superconducting cavities to perform full RF high power tests and operate at temperatures between 1.8 K and 4.2 K. The cryostat is designed to accommodate a large array of superconducting cavities and magnets, among which the European Spallation Source (ESS) type spoke and high-β elliptical cavities as well as TESLA/ILC type elliptical cavities. The present status of the project and the design of the cryostat are reported.

  2. The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1

    SciTech Connect (OSTI)

    Wehner, Michael F.; Reed, Kevin A.; Li, Fuyu; Prabhat, -; Bacmeister, Julio; Chen, Cheng -Ta; Paciorek, Christopher; Gleckler, Peter J.; Sperber, Kenneth R.; Collins, William D.; Gettelman, Andrew; Jablonowski, Christiane

    2014-11-05

    We present an analysis of version 5.1 of the Community Atmospheric Model (CAM5.1) at a high horizontal resolution. Intercomparison of this global model at approximately 0.25°, 1°, and 2° is presented for extreme daily precipitation as well as for a suite of seasonal mean fields. In general, extreme precipitation amounts are larger in high resolution than in lower-resolution configurations. In many but not all locations and/or seasons, extreme daily precipitation rates in the high-resolution configuration are higher and more realistic. The high-resolution configuration produces tropical cyclones up to category 5 on the Saffir-Simpson scale and a comparison to observations reveals both realistic and unrealistic model behavior. In the absence of extensive model tuning at high resolution, simulation of many of the mean fields analyzed in this study is degraded compared to the tuned lower-resolution public released version of the model.

  3. ARM - Measurement - Surface condition

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    condition ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Surface condition State of the surface, including vegetation, land use, surface type, roughness, and such; often provided in model output. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list

  4. Electrophilic surface sites as precondition for the chemisorption of pyrrole on GaAs(001) surfaces

    SciTech Connect (OSTI)

    Bruhn, Thomas; Fimland, Bjørn-Ove; Vogt, Patrick

    2015-03-14

    We report how the presence of electrophilic surface sites influences the adsorption mechanism of pyrrole on GaAs(001) surfaces. For this purpose, we have investigated the adsorption behavior of pyrrole on different GaAs(001) reconstructions with different stoichiometries and thus different surface chemistries. The interfaces were characterized by x-ray photoelectron spectroscopy, scanning tunneling microscopy, and by reflectance anisotropy spectroscopy in a spectral range between 1.5 and 5 eV. On the As-rich c(4 × 4) reconstruction that exhibits only nucleophilic surface sites, pyrrole was found to physisorb on the surface without any significant modification of the structural and electronic properties of the surface. On the Ga-rich GaAs(001)-(4 × 2)/(6 × 6) reconstructions which exhibit nucleophilic as well as electrophilic surface sites, pyrrole was found to form stable covalent bonds mainly to the electrophilic (charge deficient) Ga atoms of the surface. These results clearly demonstrate that the existence of electrophilic surface sites is a crucial precondition for the chemisorption of pyrrole on GaAs(001) surfaces.

  5. Surface cleanliness measurement procedure

    DOE Patents [OSTI]

    Schroder, Mark Stewart; Woodmansee, Donald Ernest; Beadie, Douglas Frank

    2002-01-01

    A procedure and tools for quantifying surface cleanliness are described. Cleanliness of a target surface is quantified by wiping a prescribed area of the surface with a flexible, bright white cloth swatch, preferably mounted on a special tool. The cloth picks up a substantial amount of any particulate surface contamination. The amount of contamination is determined by measuring the reflectivity loss of the cloth before and after wiping on the contaminated system and comparing that loss to a previous calibration with similar contamination. In the alternative, a visual comparison of the contaminated cloth to a contamination key provides an indication of the surface cleanliness.

  6. Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge

    SciTech Connect (OSTI)

    Kubes, P.; Cikhardt, J.; Klir, D.; Kravarik, J.; Rezac, K.; Kortanek, J.; Cikhardtova, B.; Paduch, M.; Zielinska, E.

    2015-05-15

    The use of multi-frame interferometry used on the PF-1000 device with the deuterium filling showed the existence of a return motion of the top of several lobules of the pinched column formed at the pinched plasma column. This phenomenon was observed in the presence of an over-optimal mass in front of the anode, which depressed the intensity of the implosion and the smooth surface of the pinched plasma column. The observed evolution was explored through the use of closed poloidal currents transmitted outside the pinched plasma. This interpretation complements the scenario of the closed currents flowing within the structures inside the pinched column, which has been published recently on the basis of observations from interferometry, neutron, and magnetic probe diagnostics on this device.

  7. Application of a three-dimensional model for a study of the energy transfer of a high-pressure mercury horizontal lamp

    SciTech Connect (OSTI)

    Ben Hamida, M. B.; Charrada, K.

    2012-06-15

    This paper is devoted to study the dynamics of a discharge lamp with high intensity in a horizontal position. As an example of application, we chose the high-pressure mercury lamp. For this, we realized a three-dimensional model, a stable and powered DC. After the validation of this model, we used it to reproduce the influence of some parameters that have appeared on major transport phenomena of mass and energy in studying the lamp operating in a horizontal position. Indeed, the mass of mercury and the electric current are modified and the effect of convective transport is studied.

  8. DNA ELECTROPHORESIS AT SURFACES

    SciTech Connect (OSTI)

    RAFAILOVICH, MIRIAM; SOKOLOV, JONATHAN; GERSAPPE, DILIP

    2003-09-01

    During this year we performed two major projects: I. We developed a detailed theoretical model which complements our experiments on surface DNA electrophoresis. We found that it was possible to enhance the separation of DNA chains by imposing a chemical nanoscale pattern on the surface. This approach utilized the surface interaction effect of the DNA chains with the substrate and is a refinement to our previous method in which DNA chains were separated on homogeneous flat surfaces. By introducing the nano-patterns on the surface, the conformational changes of DNA chains of different lengths can be amplified, which results in the different friction strengths with the substrate surface. Our results also show that, when compared to the DNA electrophoresis performed on homogeneous flat surfaces, nanopatterned surfaces offer a larger window in choosing different surface interactions to achieve separation. II. In collaboration with a large international manufacturer of skin care products we also embarked on a project involving photo toxicity of titanium dioxide nanoparticles, which are a key ingredient in sunscreen and cosmetic lotions. The results clearly implicated the nanoparticles in catalyzing damage to chromosomal DNA. We then used this knowledge to develop a polymer/anti-oxidant coating which prevented the photocatalytic reaction on DNA while still retaining the UV absorptive properties of the nanoparticles. The standard gel electrophoresis was not sufficient in determining the extent of the DNA damage. The conclusions of this study were based predominantly on analysis obtained with the surface electrophoresis method.

  9. Energy Efficiency Potential in Existing Commercial Buildings: Review of Selected Recent Studies

    SciTech Connect (OSTI)

    Belzer, David B.

    2009-04-03

    This report reviews six recent studies (from 2002 through 2006) by states and utilities to assess the energy saving potential in existing commercial buildings. The studies cover all or portions of California, Connecticut, Vermont, Colorado, Illinois, and the Pacific Northwest. The studies clearly reveal that lighting remains the single largest and most cost effective end use that can be reduced to save energy. Overall the study indicated that with existing technologies and costs, a reasonable range of economic savings potential in existing commercial buildings is between 10 and 20 percent of current energy use. While not a focus of the study, an additional conclusion is that implementation of commercial building monitoring and controls would also play an important role in the nation’s efforts to improve energy efficiency of existing buildings.

  10. Hawaii Clean Energy Initiative Existing Building Energy Efficiency Analysis: November 17, 2009- June 30, 2010

    Broader source: Energy.gov [DOE]

    This report presents the results of the Booz Allen Hamilton study on the existing building stock of Hawaii, along with conclusions on the key drivers of potential energy efficiency savings and on the steps necessary to attain them.

  11. Existing Homes Retrofit Case Study: Green Home Solutions by Grupe, Lodi, California

    SciTech Connect (OSTI)

    2009-09-01

    This is a Building America case study on a the first whole building energy efficiency retrofit project on an existing home conducted by Grupe's Green Home Solutions in Lodi, California.

  12. DOE Seeks Further Public Input on How Best To Streamline Existing...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DOE Seeks Further Public Input on How Best To Streamline Existing Regulations December 7, 2011 - 12:34pm Addthis The Department of Energy (DOE) has announced a further step to ...

  13. Building America Technology Solutions for New and Existing Homes: Advanced Boiler Load Monitoring Controllers, Chicago, Illinois

    Broader source: Energy.gov [DOE]

    In this project, the Building America team Partnership for Advanced Residential Retrofit (PARR) installed and monitored an ALM aftermarket controller, the M2G from Greffen Systems, at two Chicago area multifamily buildings with existing OTR control.

  14. Industry Stakeholder Recommendations for DOE's RD&D for Increasing Energy Efficiency in Existing Homes

    SciTech Connect (OSTI)

    Plympton, P.; Dagher, L.; Zwack, B.

    2007-06-01

    This technical report documents feedback for Industry Stakeholders on the direction of future U.S. Department of Energy (DOE) research and development in the area of improving energy efficiency in existing residential buildings.

  15. Analysis of Alternative Extensions of the Existing Production Tax Credit for Wind Generators

    Reports and Publications (EIA)

    2007-01-01

    Requestor: Ms. Janice Mays, Chief Counsel, Committee on Ways & Means, U.S. House of Representatives This is a letter response requesting analysis of alternative extensions of the existing production tax credit (PTC) that would apply to wind generators only.

  16. Surface modification to waveguides

    DOE Patents [OSTI]

    Timberlake, John R.; Ruzic, David N.; Moore, Richard L.; Cohen, Samuel A.; Manos, Dennis M.

    1983-01-01

    A method of treating the interior surfaces of a waveguide to improve power transmission comprising the steps of mechanically polishing to remove surface protrusions; electropolishing to remove embedded particles; ultrasonically cleaning to remove any residue; coating the interior waveguide surfaces with an alkyd resin solution or electrophoretically depositing carbon lamp black suspended in an alkyd resin solution to form a 1.mu. to 5.mu. thick film; vacuum pyrolyzing the film to form a uniform adherent carbon coating.

  17. Surface modification to waveguides

    DOE Patents [OSTI]

    Timberlake, J.R.; Ruzic, D.N.; Moore, R.L.; Cohen, S.A.; Manos, D.M.

    1982-06-16

    A method is described for treating the interior surfaces of a waveguide to improve power transmission comprising the steps of mechanically polishing to remove surface protrusions; electropolishing to remove embedded particles; ultrasonically cleaning to remove any residue; coating the interior waveguide surfaces with an alkyd resin solution or electrophoretically depositing carbon lamp black suspended in an alkyd resin solution to form a 1..mu.. to 5..mu.. thick film; vacuum pyrolyzing the film to form a uniform adherent carbon coating.

  18. Appendix PORSURF: Porosity Surface

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PORSURF-2014 Porosity Surface United States Department of Energy Waste Isolation Pilot Plant Carlsbad Field Office Carlsbad, New Mexico Compliance Recertification Application 2014 Appendix PORSURF-2014 Table of Contents PORSURF-1.0 Introduction PORSURF-2.0 Creep Closure Method PORSURF-3.0 Conceptual Model for Porosity Surface PORSURF-4.0 SANTOS Numerical Analyses PORSURF-5.0 Implementation of Porosity Surface in BRAGFLO PORSURF-6.0 Dynamic Closure of the North End and Hallways PORSURF-7.0

  19. Building America Technology Solutions for New and Existing Homes:Hydronic

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Designing for Setback Operations | Department of Energy Existing Homes:Hydronic Systems Designing for Setback Operations Building America Technology Solutions for New and Existing Homes:Hydronic Systems Designing for Setback Operations This guide, developed by Consortium for Advanced Residential Buildings, provides step-by-step instructions for heating contractors and hydronic designers for selecting the proper control settings to maximize system performance and improve response time

  20. GAO-14-369, NATIONAL ENVIRONMENTAL POLICY ACT: Little Information Exists on NEPA Analyses

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    NATIONAL ENVIRONMENTAL POLICY ACT Little Information Exists on NEPA Analyses Report to Congressional Requesters April 2014 GAO-14-369 United States Government Accountability Office United States Government Accountability Office Highlights of GAO-14-369, a report to congressional requesters April 2014 NATIONAL ENVIRONMENTAL POLICY ACT Little Information Exists On NEPA Analyses Why GAO Did This Study NEPA requires all federal agencies to evaluate the potential environmental effects of proposed

  1. Efficient Solutions for Existing Homes Case Study: Solar Water Heating in

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Multifamily Buildings | Department of Energy Existing Homes Case Study: Solar Water Heating in Multifamily Buildings Efficient Solutions for Existing Homes Case Study: Solar Water Heating in Multifamily Buildings In spring 2014, Olive Street Development completed a major renovation project-converting an old school building in Greenfield, Massachusetts, into 12 high-performance apartments. The developer installed SDHW to reduce fossil-fuel consumption, and CARB has been monitoring the system

  2. Building America Whole-House Solutions for Existing Homes: Applying Best

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) | Department of Energy Building America Whole-House Solutions for Existing Homes: Applying Best Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Applying Best Practices to Florida Local Government Retrofit Programs - Central Florida (Fact Sheet) In this project, researchers from Building America Partnership for

  3. Building America Whole-House Solutions for New and Existing Homes:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluating Energy Savings in All-Electric Public Housing in the Pacific Northwest (Fact sheet) | Department of Energy and Existing Homes: Evaluating Energy Savings in All-Electric Public Housing in the Pacific Northwest (Fact sheet) Building America Whole-House Solutions for New and Existing Homes: Evaluating Energy Savings in All-Electric Public Housing in the Pacific Northwest (Fact sheet) This project analyzes the cost effectiveness of energy-saving measures installed by a large public

  4. Horizontal Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures

    SciTech Connect (OSTI)

    Pichugina, Y. L.; Banta, R. M.; Kelley, N. D.; Jonkman, B. J.; Tucker, S. C.; Newsom, R. K.; Brewer, W. A.

    2008-08-01

    Quantitative data on turbulence variables aloft--above the region of the atmosphere conveniently measured from towers--have been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise velocity variances obtained from NOAA's high-resolution Doppler lidar (HRDL), which have been shown to be approximately equal to turbulence kinetic energy (TKE) for stable conditions, are a measure of the turbulence in the SBL. In the present study, the mean horizontal wind component U and variance {sigma}2u were computed from HRDL measurements of the line-of-sight (LOS) velocity using a method described by Banta et al., which uses an elevation (vertical slice) scanning technique. The method was tested on datasets obtained during the Lamar Low-Level Jet Project (LLLJP) carried out in early September 2003, near the town of Lamar in southeastern Colorado. This paper compares U with mean wind speed obtained from sodar and sonic anemometer measurements. The results for the mean U and mean wind speed measured by sodar and in situ instruments for all nights of LLLJP show high correlation (0.71-0.97), independent of sampling strategies and averaging procedures, and correlation coefficients consistently >0.9 for four high-wind nights, when the low-level jet speeds exceeded 15 m s{sup -1} at some time during the night. Comparison of estimates of variance, on the other hand, proved sensitive to both the spatial and temporal averaging parameters. Several series of averaging tests are described, to find the best correlation between TKE calculated from sonic anemometer data at several tower levels and lidar measurements of horizontal-velocity variance {sigma}{sup 2}{sub u}. Because of the nonstationarity of the SBL data, the best results were obtained when the velocity data were first averaged over intervals of 1 min, and then further averaged over 3-15 consecutive 1-min intervals, with best results

  5. ARM - Measurement - Surface albedo

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    albedo ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Surface albedo The fraction of incoming solar radiation at a surface (i.e. land, cloud top) that is effectively reflected by that surface. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of

  6. The cell surface

    SciTech Connect (OSTI)

    Axel, R.; Goodman, C.; Hynes, R.; Stillman, B.

    1992-12-31

    This volume contains abstracts of oral presentations and poster sessions of made at the LVII Cold Springs Symposium on Quantitative Biology, entitled The Cell Surface.

  7. Incompressible Flows Free Surfaces

    Energy Science and Technology Software Center (OSTI)

    1992-02-01

    NASA-VOF3D is a three-dimensional, transient, free surface, incompressible fluid dynamics program. It is specifically designed to calculate confined flows in a low gravity environment in which surface physics must be accurately treated. It allows multiple free surfaces with surface tension and wall adhesion and includes a partial cell treatment that allows curved boundaries and internal obstacles. Variable mesh spacing is permitted in all three coordinate directions. Boundary conditions available are rigid free-slip wall, rigid no-slipmore » wall, continuative, periodic, and specified pressure outflow boundary.« less

  8. Reducing Energy Use in Existing Homes by 30%: Learning From Home Performance with ENERGY STAR

    SciTech Connect (OSTI)

    Liaukus, C.

    2014-12-01

    The improvement of existing homes in the United States can have a much greater impact on overall residential energy use than the construction of highly efficient new homes. There are over 130 million existing housing units in the U.S., while annually new construction represents less than two percent of the total supply (U.S. Census Bureau, 2013). Therefore, the existing housing stock presents a clear opportunity and responsibility for Building America (BA) to guide the remodeling and retrofit market toward higher performance existing homes. There are active programs designed to improve the energy performance of existing homes. Home Performance with ENERGY STAR (HPwES) is a market-rate program among them. BARA's research in this project verified that the New Jersey HPwES program is achieving savings in existing homes that meet or exceed BA's goal of 30%. Among the 17 HPwES projects with utility data included in this report, 15 have actual energy savings ranging from 24% to 46%. Further, two of the homes achieved that level of energy savings without the costly replacement of heating and cooling equipment, which indicates that less costly envelope packages could be offered to consumers unable to invest in more costly mechanical packages, potentially creating broader market impact.

  9. ARM - Measurement - Sea surface temperature

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sea surface temperature The temperature of sea water near the surface. Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the...

  10. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, Mi. J.; Li, Y.; Sale, D. C.

    2011-01-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines (HATTs). First, an HATT blade was designed using the blade element momentum method in conjunction with a genetic optimization algorithm. Several unstructured computational grids were generated using this blade geometry and steady CFD simulations were used to perform a grid resolution study. Transient simulations were then performed to determine the effect of time-dependent flow phenomena and the size of the computational timestep on the numerical solution. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  11. Limitation of parallel flow in double diffusive convection: Two- and three-dimensional transitions in a horizontal porous domain

    SciTech Connect (OSTI)

    Mimouni, N.; Chikh, S.; Rahli, O.; Bennacer, R.

    2014-07-15

    Two-dimensional (2D) and three-dimensional (3D) numerical simulations of double diffusion natural convection in an elongated enclosure filled with a binary fluid saturating a porous medium are carried out in the present work. The Boussinesq approximation is made in the formulation of the problem, and Neumann boundary conditions for temperature and concentration are adopted, respectively, on vertical and horizontal walls of the cavity. The used numerical method is based on the control volume approach, with the third order quadratic upstream interpolation scheme in approximating the advection terms. A semi implicit method algorithm is used to handle the velocity-pressure coupling. To avoid the excessively high computer time inherent to the solution of 3D natural convection problems, full approximation storage with full multigrid method is used to solve the problem. A wide range of the controlling parameters (Rayleigh-Darcy number Ra, lateral aspect ratio Ay, Lewis number Le, and the buoyancy ration N) is investigated. We clearly show that increasing the depth of the cavity (i.e., the lateral aspect ratio) has an important effect on the flow patterns. The 2D perfect parallel flows obtained for small lateral aspect ratio are drastically destabilized by increasing the cavity lateral dimension. This yields a 3D fluid motion with a much more complex flow pattern and the usually considered 2D parallel flow model cannot be applied.

  12. Fuel cell integral bundle assembly including ceramic open end seal and vertical and horizontal thermal expansion control

    DOE Patents [OSTI]

    Zafred, Paolo R.; Gillett, James E.

    2012-04-24

    A plurality of integral bundle assemblies contain a top portion with an inlet fuel plenum and a bottom portion containing a base support, the base supports a dense, ceramic air exhaust manifold having four supporting legs, the manifold is below and connects to air feed tubes located in a recuperator zone, the air feed tubes passing into the center of inverted, tubular, elongated, hollow electrically connected solid oxide fuel cells having an open end above a combustion zone into which the air feed tubes pass and a closed end near the inlet fuel plenum, where the open end of the fuel cells rest upon and within a separate combination ceramic seal and bundle support contained in a ceramic support casting, where at least one flexible cushion ceramic band seal located between the recuperator and fuel cells protects and controls horizontal thermal expansion, and where the fuel cells operate in the fuel cell mode and where the base support and bottom ceramic air exhaust manifolds carry from 85% to all of the weight of the generator.

  13. Laboratory development and field application of a novel water-based drill-in fluid for geopressured horizontal wells

    SciTech Connect (OSTI)

    Dobson, J.W.; Harrison, J.C.; Hale, A.H.

    1996-12-31

    Research has identified a novel water-based drill-in fluid for drilling and completing geopressured horizontal wells. This fluid has a unique combination of properties which make it especially suitable for geopressured applications. They include the use of calcium and/or zinc bromide as a base brine, minimal concentration of calcium carbonate as bridging material, low plastic viscosity, tight fluid loss control, good filter cake properties, and excellent return permeability. This drill-in fluid has been used successfully to drill a 1,200 foot production interval, 4.75 inch diameter wellbore in the Gulf of Mexico with a system weight of 13.2 lbm/gal, bottom hole temperature of 185{degrees} F., and a 1400 to 1700 psi overbalance. The system functioned very well in both the drilling and completion operations. Fluid rheology was easily maintainable and the hole conditions were excellent without torque or drag problems. Initial production data suggests that the well is producing at expected rates with low drawdown pressure.

  14. Stratification of particulate and VOC pollutants in horizontal-flow-paint spray booths. Report for September 1988-October 1989

    SciTech Connect (OSTI)

    Darvin, C.H.

    1990-01-01

    The paper discusses stratification of particulate and volatile organic compound (VOC) pollutants in horizontal flow paint spray booths, as part of a joint U.S. Air Force/EPA research and development program on emissions from paint spray booths. The test program discussed in the paper was designed to characterize the pollutants both within and exiting a typical back-draw booth for which emissions control strategies are being developed. The results of one series of tests indicate that the pollutants, both particulate and VOC, fall to the lower level of the booth or stratify at the level at which they were generated. This might be expected since the densities of typical pollutants found in spray booths are greater than air. The results showed, however, that the concentration of pollutants in the lower level prior to exiting the booth was significantly greater than expected. Data indicated that, for the 16 ft (4.9 m) high booth tested, the concentration at the exit of the booth below the 8 ft (2.4 m) level was 5-25 times greater than the concentration above that level. The importance of these findings is that it might be possible to partition a booth's air flow into two zones, one lean and the other concentrated. The concentrated zone could be directed to a proportionally smaller VOC control system of significantly less capital and operating cost.

  15. The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wehner, Michael F.; Reed, Kevin A.; Li, Fuyu; Prabhat, -; Bacmeister, Julio; Chen, Cheng -Ta; Paciorek, Christopher; Gleckler, Peter J.; Sperber, Kenneth R.; Collins, William D.; et al

    2014-11-05

    We present an analysis of version 5.1 of the Community Atmospheric Model (CAM5.1) at a high horizontal resolution. Intercomparison of this global model at approximately 0.25°, 1°, and 2° is presented for extreme daily precipitation as well as for a suite of seasonal mean fields. In general, extreme precipitation amounts are larger in high resolution than in lower-resolution configurations. In many but not all locations and/or seasons, extreme daily precipitation rates in the high-resolution configuration are higher and more realistic. The high-resolution configuration produces tropical cyclones up to category 5 on the Saffir-Simpson scale and a comparison to observations revealsmore » both realistic and unrealistic model behavior. In the absence of extensive model tuning at high resolution, simulation of many of the mean fields analyzed in this study is degraded compared to the tuned lower-resolution public released version of the model.« less

  16. Solar absorption surface panel

    DOE Patents [OSTI]

    Santala, Teuvo J.

    1978-01-01

    A composite metal of aluminum and nickel is used to form an economical solar absorption surface for a collector plate wherein an intermetallic compound of the aluminum and nickel provides a surface morphology with high absorptance and relatively low infrared emittance along with good durability.

  17. A reduced order modeling approach to represent subgrid-scale hydrological dynamics for regional- and climate-scale land-surface simulations: application in a polygonal tundra landscape

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Pau, G. S. H.; Bisht, G.; Riley, W. J.

    2014-04-04

    Existing land surface models (LSMs) describe physical and biological processes that occur over a wide range of spatial and temporal scales. For example, biogeochemical and hydrological processes responsible for carbon (CO2, CH4) exchanges with the atmosphere range from molecular scale (pore-scale O2 consumption) to tens of kilometer scale (vegetation distribution, river networks). Additionally, many processes within LSMs are nonlinearly coupled (e.g., methane production and soil moisture dynamics), and therefore simple linear upscaling techniques can result in large prediction error. In this paper we applied a particular reduced-order modeling (ROM) technique known as "Proper Orthogonal Decomposition mapping method" that reconstructs temporally-resolvedmore » fine-resolution solutions based on coarse-resolution solutions. We applied this technique to four study sites in a polygonal tundra landscape near Barrow, Alaska. Coupled surface-subsurface isothermal simulations were performed for summer months (June–September) at fine (0.25 m) and coarse (8 m) horizontal resolutions. We used simulation results from three summer seasons (1998–2000) to build ROMs of the 4-D soil moisture field for the four study sites individually (single-site) and aggregated (multi-site). The results indicate that the ROM produced a significant computational speedup (> 103) with very small relative approximation error (< 0.1%) for two validation years not used in training the ROM. We also demonstrated that our approach: (1) efficiently corrects for coarse-resolution model bias and (2) can be used for polygonal tundra sites not included in the training dataset with relatively good accuracy (< 1.5% relative error), thereby allowing for the possibility of applying these ROMs across a much larger landscape. This method has the potential to efficiently increase the resolution of land models for coupled climate simulations, allowing LSMs to be used at spatial scales consistent with

  18. Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers

    SciTech Connect (OSTI)

    Bradley Adams; Andrew Fry; Constance Senior; Hong Shim; Huafeng Wang; Jost Wendt; Christopher Shaddix

    2009-06-30

    This report summarizes Year 1 results of a research program designed to use multi-scale experimental studies and fundamental theoretical models to characterize and predict the impacts of retrofit of existing coal-fired utility boilers for oxy-combustion. Through the course of Year 1 activities, great progress was made toward understanding the issues associated with oxy-combustion retrofit of coal-fired boilers. All four Year 1 milestones and objectives have been, or will be, completed on schedule and within budget. Progress in the four milestone areas may be summarized as follows: • University of Utah has performed size segregated ash composition measurements in the Oxy-Fuel Combustor (OFC). These experiments indicate that oxy-combustion retrofit may impact ash aerosol mineral matter composition. Both flame temperature and flue gas composition have been observed to influence the concentration of calcium, magnesium and iron in the fine particulate. This could in turn impact boiler fouling and slagging. • Sandia National Labs has shown that char oxidation rate is dependent on particle size (for sizes between 60 and 100 microns) by performing fundamental simulations of reacting char particles. These predictions will be verified by making time-resolved optical measurements of char particle temperature, velocity and size in bench-scale experiments before the end of Year 1. • REI and Siemens have completed the design of an oxy-research burner that will be mounted on University of Utah’s pilot-scale furnace, the L1500. This burner will accommodate a wide range of O2, FGR and mixing strategies under conditions relevant for utility boiler operation. Through CFD modeling of the different burner designs, it was determined that the key factor influencing flame stabilization location is particle heat-up rate. The new oxy-research burner and associated equipment is scheduled for delivery before the end of Year 1. • REI has completed a literature survey of slagging and

  19. Mixed convection heat transfer to and from a horizontal cylinder in cross-flow with heating from below.

    SciTech Connect (OSTI)

    Greif, Ralph (University of California, Berkeley, CA); Evans, Gregory Herbert; Kearney, Sean Patrick (Sandia National Laboratories, Albuquerque, NM); Laskowski, Gregory Michael

    2006-02-01

    Heat transfer to and from a circular cylinder in a cross-flow of water at low Reynolds number was studied both experimentally and numerically. The experiments were carried out in a high aspect ratio water channel. The test section inflow temperature and velocity, channel lower surface temperature and cylinder surface temperature were controlled to yield either laminar or turbulent flow for a desired Richardson number. When the lower surface was unheated, the temperatures of the lower surface and water upstream of the cylinder were maintained approximately equal and the flow was laminar. When the lower surface was heated, turbulence intensities as high as 20% were measured several cylinder diameters upstream of the cylinder due to turbulent thermal plumes produced by heating the lower surface. Variable property, two-dimensional simulations were undertaken using a variant of the u{sup 2}-f turbulence model with buoyancy production of turbulence accounted for by a simple gradient diffusion model. Predicted and measured heat flux distributions around the cylinder are compared for values of the Richardson number, Gr{sub d}/Re{sub d}{sup 2} from 0.3 to 9.3. For laminar flow, the predicted and measured heat flux results agreed to within the experimental uncertainty. When the lower surface was heated, and the flow was turbulent, there was qualitative agreement between predicted and measured heat flux distributions around the cylinder. However the predicted spatially averaged Nusselt number was from 37% to 53% larger than the measured spatially averaged Nusselt number. Additionally, spatially averaged Nusselt numbers are compared to correlations in the literature for mixed convection heat transfer to/from cylinders in cross-flow. The results presented here are larger than the correlation values. This is believed to be due to the effects of buoyancy-induced turbulence resulting from heating the lower surface and the proximity of the cylinder to that surface.

  20. Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

    DOE Patents [OSTI]

    Carpenter, D.A.

    1995-05-23

    A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data. 7 Figs.

  1. Nonfunctionalized Polydimethyl Siloxane Superhydrophobic Surfaces...

    Office of Scientific and Technical Information (OSTI)

    Surfaces Based on Hydrophobic-Hydrophilic Interactions Citation Details In-Document Search Title: Nonfunctionalized Polydimethyl Siloxane Superhydrophobic Surfaces Based ...

  2. Hawaii Clean Energy Initiative Existing Building Energy Efficiency Analysis: November 17, 2009 - June 30, 2010

    SciTech Connect (OSTI)

    Finch, P.; Potes, A.

    2010-06-01

    In June 2009, the State of Hawaii enacted an Energy Efficiency Portfolio Standard (EEPS) with a target of 4,300 gigawatt hours (GWh) by 2030 (Hawaii 2009). Upon setting this goal, the Hawaii Clean Energy Initiative, Booz Allen Hamilton (BAH), and the National Renewable Energy Laboratory (NREL), working with select local stakeholders, partnered to execute the first key step toward attaining the EEPS goal: the creation of a high-resolution roadmap outlining key areas of potential electricity savings. This roadmap was divided into two core elements: savings from new construction and savings from existing buildings. BAH focused primarily on the existing building analysis, while NREL focused on new construction forecasting. This report presents the results of the Booz Allen Hamilton study on the existing building stock of Hawaii, along with conclusions on the key drivers of potential energy efficiency savings and on the steps necessary to attain them.

  3. Using Weather Data to Improve Capacity of Existing Power Lines | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Using Weather Data to Improve Capacity of Existing Power Lines Using Weather Data to Improve Capacity of Existing Power Lines May 11, 2016 - 6:01pm Addthis When it comes to increasing the efficiency of 160,000 miles of U.S. high-voltage transmission lines, the answer might be blowing in the wind. In fact, when the wind blows just the right way on a high-voltage line, the line cools enough to safely increase the amount of current between 10% and 40%. Photo of two utility poles on

  4. Prince William Sound disabled tanker towing study. Part 1. Evaluation of existing equipment, personnel and procedures

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    The study has been undertaken by the Glosten Associates, Inc., to evaluate the existing capability for emergency towing at Prince William Sound and to examine alternatives that could enhance the escort and assist capabilities for disabled tankers within the waterway from the Alyeska Oil Terminal at the Port of Valdez to the Gulf of Alaska outside Hinchinbrook Entrance. Part 1, reported herein, is an objective evaluation by an experienced salvage towing master of the existing tugs, emergency towing equipment, towing practices, and discussion of alternative tug types.

  5. TECHNOLOGIES TO ENHANCE OPERATION OF THE EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE

    SciTech Connect (OSTI)

    Anthony J. Smalley; Ralph E. Harris; Gary D. Bourn

    2004-03-01

    This report documents work performed in Phase I of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes a number of potential enhancements to the existing natural gas compression infrastructure that have been identified and qualitatively demonstrated in tests on three different integral engine/compressors in natural gas transmission service.

  6. TECHNOLOGIES TO ENHANCE OPERATION OF THE EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE

    SciTech Connect (OSTI)

    Anthony J. Smalley; Ralph E. Harris; Gary D. Bourn

    2004-08-01

    This report documents work performed in Phase I of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infracture''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes a number of potential enhancements to the existing natural gas compression infrastructure that have been identified and tested on four different integral engine/compressors in natural gas transmission service.

  7. Building America Whole-House Solutions for Existing Home: Retrofitting a

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1960s Split-Level Cold-Climate Home | Department of Energy Whole-House Solutions for Existing Home: Retrofitting a 1960s Split-Level Cold-Climate Home Building America Whole-House Solutions for Existing Home: Retrofitting a 1960s Split-Level Cold-Climate Home The U.S. Department of Energy Building America team Consortium for Advanced Residential Buildings (CARB) partnered with Preferred Builders and the owners of a 1960s split-level home in Westport, Connecticut, to evaluate and implement a

  8. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir - East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2004-06-30

    The DOE-sponsored project at the East Binger Unit is an investigation into the benefits of reservoir characterization and horizontal wells in this particular setting of geologic and recovery method. The geologic setting is a tight (average porosity of 7% and average permeability of less than 1 millidarcy) Pennsylvanian-age sandstone at about 10,000 feet, and the recovery method is a miscible nitrogen flood. The projected oil recovery of the East Binger Unit, prior to the initiation of this project, was about 25%. Gravity segregation of nitrogen and crude oil was believed to be the principal cause of the poor sweep efficiency, and it was envisioned that with horizontal producing wells in the lower portion of the reservoir and horizontal injection wells near the top, the process could be converted from a lateral displacement process to a vertical displacement/gravity assisted process. Through the characterization and field development work completed in Budget Periods 1 and 2, Binger Operations, LLC (BOL) has developed a different interpretation of the sweep problem as well as a different approach to improving recovery. The sweep problem is now believed to be one of an areal nature, due to a combination of natural and hydraulic fracturing. Vertical wells have provided a much better economic return than have the horizontal wells. The natural and hydraulic fracturing manifests itself as a direction of higher permeability, and the flood is being converted to a line drive flood aligned with this orientation. Consistent with this concept, horizontal wells have been drilled along the line of the fracture orientation, such that hydraulic fracturing leads to 'longitudinal' fractures, in line with the wellbore. As such, the hydraulically fractured horizontal wells are not significantly different than hydraulically fractured vertical wells - save for the potential for a much longer fracture face. This Topical Report contains data from new wells, plus new and updated production

  9. Evaluation of flyash surface phenomena and the application of surface analysis technology. Summary report: Phase I. [44 elements; 86 references

    SciTech Connect (OSTI)

    Smith, R.D.

    1981-06-01

    The factors governing the formation of flyash surfaces during and following coal combustion are reviewed. The competing chemical and physical processes during the evolution of inorganic material in coal during combustion into flyash are described with respect to various surface segregation processes. Two mechanisms leading to surface enrichment are volatilization-condensation processes and diffusion processes within individual flyash particles. The experimental evidence for each of these processes is reviewed. It is shown that the volatilization-condensation process is the major factor leading to trace element enrichment in smaller flyash particles. Evidence also exists from surface analyses of flyash and representative mineral matter that diffusion processes may lead to surface enrichment of elements not volatilized or cause transport of surface-condensed elements into the flyash matrix. The semiquantitative determination of the relative importance of these two processes can be determined by comparison of concentration versus particle size profiles with surface-depth profiles obtained using surface analysis techniques. A brief description of organic transformations on flyash surfaces is also presented. The various surface analytical techniques are reviewed and the relatively new technique of Static-Secondary Ion Mass Spectroscopy is suggested as having significant advantages in studies of surfaces and diffusion processes in model systems. Several recommendations are made for research relevant to flyash formation and processes occurring on flyash surfaces.

  10. Integrated approach towards the application of horizontal wells to improve waterflooding performance. Annual report, January 1, 1997--December 31, 1997

    SciTech Connect (OSTI)

    Kelkar, M.; Kerr, D.

    1998-05-01

    This annual report describes the progress during the fifth year of the project on ``Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance``. This project is funded under the Department of Energy`s Class 1 program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially dominated deltaic geological environments. The project involves using an integrated approach to characterize the reservoir followed by proposing an appropriate reservoir management strategy to improve the field performance. In the first stage of the project, the type of data the authors integrated include cross borehole seismic surveys, geological interpretation based on the logs and the cores, and the engineering information. In contrast, during the second stage of the project, they intend to use only conventional data to construct the reservoir description. This report covers the results of the implementation from the first stage of the project. It also discusses the work accomplished so far for the second stage of the project. The production from the Self Unit (location of Stage 1) has sustained an increase of 30 bbls/day over more than two years. The authors have collected available core, log and production data from Section 16 in the Berryhill Glenn Unit and have finished the geological description. Based on the geological description and the associated petrophysical properties, they have identified the areas for the most potential. These areas include Tracts 7 and 9. By conducting a detailed flow simulation on both these tracts, and evaluating the economic performance of various alternatives, they have made recommendations for both these tracts. At present, the authors are in the process of implementing the proposed reservoir management strategy in Tract 9.

  11. Future changes in regional precipitation simulated by a half-degree coupled climate model: Sensitivity to horizontal resolution

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Shields, Christine A.; Kiehl, Jeffrey T.; Meehl, Gerald A.

    2016-06-02

    The global fully coupled half-degree Community Climate System Model Version 4 (CCSM4) was integrated for a suite of climate change ensemble simulations including five historical runs, five Representative Concentration Pathway 8.5 [RCP8.5) runs, and a long Pre-Industrial control run. This study focuses on precipitation at regional scales and its sensitivity to horizontal resolution. The half-degree historical CCSM4 simulations are compared to observations, where relevant, and to the standard 1° CCSM4. Both the halfdegree and 1° resolutions are coupled to a nominal 1° ocean. North American and South Asian/Indian monsoon regimes are highlighted because these regimes demonstrate improvements due to highermore » resolution, primarily because of better-resolved topography. Agriculturally sensitive areas are analyzed and include Southwest, Central, and Southeast U.S., Southern Europe, and Australia. Both mean and extreme precipitation is discussed for convective and large-scale precipitation processes. Convective precipitation tends to decrease with increasing resolution and large-scale precipitation tends to increase. Improvements for the half-degree agricultural regions can be found for mean and extreme precipitation in the Southeast U.S., Southern Europe, and Australian regions. Climate change responses differ between the model resolutions for the U.S. Southwest/Central regions and are seasonally dependent in the Southeast and Australian regions. Both resolutions project a clear drying signal across Southern Europe due to increased greenhouse warming. As a result, differences between resolutions tied to the representation of convective and large-scale precipitation play an important role in the character of the climate change and depend on regional influences.« less

  12. Multifunctional thin film surface

    DOE Patents [OSTI]

    Brozik, Susan M.; Harper, Jason C.; Polsky, Ronen; Wheeler, David R.; Arango, Dulce C.; Dirk, Shawn M.

    2015-10-13

    A thin film with multiple binding functionality can be prepared on an electrode surface via consecutive electroreduction of two or more aryl-onium salts with different functional groups. This versatile and simple method for forming multifunctional surfaces provides an effective means for immobilization of diverse molecules at close proximities. The multifunctional thin film has applications in bioelectronics, molecular electronics, clinical diagnostics, and chemical and biological sensing.

  13. Measure Guideline. Installing Rigid Foam Insulation on the Interior of Existing Brick Walls

    SciTech Connect (OSTI)

    Natarajan, Hariharan; Klocke, Steve; Puttagunta, Srikanth

    2012-06-01

    This measure guideline provides information on an effective method to insulate the interior of existing brick masonry walls with extruded polystyrene (XPS) insulation board. The guide outlines step-by-step design and installation procedures while explaining the benefits and tradeoffs where applicable. The authors intend that this document be useful to a varied audience that includes builders,remodelers, contractors and homeowners.

  14. Assessment of the geothermal resources of Illinois based on existing geologic data

    SciTech Connect (OSTI)

    Vaught, T.L.

    1980-12-01

    Geothermal resources are not known to exist in Illinois. However, from the data presented on heat flow, thermal gradients, depth to basement, seismic activity, and low-conductivity sediments, inferences are drawn about the possible presence of resources in the state. (MHR)

  15. Existence of global weak solution for a reduced gravity two and a half layer model

    SciTech Connect (OSTI)

    Guo, Zhenhua Li, Zilai Yao, Lei

    2013-12-15

    We investigate the existence of global weak solution to a reduced gravity two and a half layer model in one-dimensional bounded spatial domain or periodic domain. Also, we show that any possible vacuum state has to vanish within finite time, then the weak solution becomes a unique strong one.

  16. Comparison of environmental issues related to development of small hydropower resources at new versus existing sites

    SciTech Connect (OSTI)

    Loar, J. M.; Hildebrand, S. G.

    1980-01-01

    Many of the ecological issues associated with the development of small hydropower resources are similar at both new (undeveloped) sites and those with existing dams that will be retrofitted for hydroelectric generation. Issues that could occur with both types of development are: (1) blockage of fish migration routes; (2) water level fluctuations; (3) instream flows, (4) water quality; (5) dredging and dredged material disposal; and (6) threatened or endangered species. However, new site development projects require the alteration of existing aquatic and terrestrial ecosystems that will be, in most cases, significantly greater than the environmental changes associated with the retrofitting of existing dams. Although project design and operation are important factors controlling the nature and magnitude of the environmental impacts of small hydropower resource development, the mitigation of adverse impacts (and the optimization of beneficial effects) is dependent, in large measure, on our ability to accurately predict physical, chemical, and biological changes. Predicting the impacts of new impoundments may be considerably more difficult than predicting the impacts that might occur if an existing dam/impoundment system is developed. A comparative approach at the ecosystem level can provide valuable insights into the structure and function of reservoir systems and significantly increase our predictive capability.

  17. Target Pilots Energy Efficiency Measures for Broad Rollout in Existing Stores

    SciTech Connect (OSTI)

    2013-03-01

    Target Corporation partnered with the U.S. Department of Energy (DOE) to develop and implement solutions to retrofit existing buildings to reduce annual energy consumption by at least 30% versus requirements set by ASHRAE/ANSI/IESNA Standard 90.1-20041 as part of DOE’s Commercial Building Partnership (CBP) program.

  18. Existence of standard models of conic fibrations over non-algebraically-closed fields

    SciTech Connect (OSTI)

    Avilov, A A

    2014-12-31

    We prove an analogue of Sarkisov's theorem on the existence of a standard model of a conic fibration over an algebraically closed field of characteristic different from two for three-dimensional conic fibrations over an arbitrary field of characteristic zero with an action of a finite group. Bibliography: 16 titles.

  19. EA-2026: Biomedical Research at Existing Biosafety Level 3 Laboratories with Registered Select Agent Programs

    Broader source: Energy.gov [DOE]

    This EA will evaluate the environmental consequences resulting from DOE’s proposed action for Pacific Northwest National Laboratory-affiliated staff to access and use existing, operating biosafety level 3 (BSL-3) facilities with select agent registration to conduct biomedical research.

  20. Report on issues regarding the existing New York liquefied natural gas moratorium

    SciTech Connect (OSTI)

    1998-11-01

    The New York Energy Planning Board has prepared this study to provide the Governor and the Legislature with information necessary to determine the need for further extension or modification of the existing State moratorium on the siting of new liquefied natural gas (LNG) facilities and intrastate transportation routes as required by Chapter 385 of the laws of 1997. The report examines existing laws and regulations that would affect new LNG facilities in New York and government initiatives in other states. It reviews existing use of LNG in New York, including safety issues and potential public concerns that may arise with lifting the moratorium. It also discusses the economic and environmental effects of increased LNG usage for New York State. The study concludes that there are economic and environmental advantages for allowing the construction of new LNG facilities as well as the intrastate transportation of LNG over new routes. Additionally, it concludes that safety concerns associated with these facilities are adequately addressed by existing Federal, State and local statutes and regulations.

  1. Viability of Existing INL Facilities for Dry Storage Cask Handling R1

    Broader source: Energy.gov [DOE]

    This report evaluates existing capabilities at Idaho National Laboratory (INL) to determine if a practical and cost effective method could be developed for handling and opening full-sized dry storage casks in support of the U.S. Department of Energy's plan for confirmatory dry storage project for high burnup fuel.

  2. Handsfree Surface Analysis

    Energy Science and Technology Software Center (OSTI)

    2006-11-01

    The HANDSFREE SURFACE ANALYSIS software code enables unattended analysis of surfaces by desorption electrospray (DESI) and liquid-junction surface sampling probe (SSP) mass spectrometry. The software allows automated lane scanning, imaging (e.g. lane rastering), spot and array sampling, and array scanning methods by controlling the movement of the sample attached to a computer-controlled stage. The software is able to collect, visualize and analyze mass spectrometry data real-time for surface analysis purposes by interacting with mass spectrometrymore » instrumentation software. The software also enables data post processing for imaging and other analytical purposes. The software also contains image analysis approaches to control the sampling capillary-to-surface distance when used with DESI, and for automated formation and real-time reoptimization of the sampling probe-to-surface liquid microjunction when used with SSP. Control of these distances is essential to automated, hands-free operation of a DESI or SSP mass spectrometry system.« less

  3. Engine Friction Reduction Through Surface Finish and Coatings | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Friction Reduction Through Surface Finish and Coatings Engine Friction Reduction Through Surface Finish and Coatings Opportunities exist for friction reduction in piston rings and valve trains using durable, advanced material technologies, such as diamond-like carbon (DLC) coatings, and new lubricants. deer12_gangopadhyay.pdf (1.14 MB) More Documents & Publications Low-Friction Hard Coatings Vehicle Technologies Office Merit Review 2014: Development of Modified PAG

  4. Linear relationship between water wetting behavior and microscopic interactions of super-hydrophilic surfaces

    SciTech Connect (OSTI)

    Liu, Jian; Guo, Pan; University of Chinese Academy of Sciences, Beijing 100049 ; Wang, Chunlei; Shi, Guosheng Fang, Haiping

    2013-12-21

    Using molecular dynamics simulations, we show a fine linear relationship between surface energies and microscopic Lennard-Jones parameters of super-hydrophilic surfaces. The linear slope of the super-hydrophilic surfaces is consistent with the linear slope of the super-hydrophobic, hydrophobic, and hydrophilic surfaces where stable water droplets can stand, indicating that there is a universal linear behavior of the surface energies with the water-surface van der Waals interaction that extends from the super-hydrophobic to super-hydrophilic surfaces. Moreover, we find that the linear relationship exists for various substrate types, and the linear slopes of these different types of substrates are dependent on the surface atom density, i.e., higher surface atom densities correspond to larger linear slopes. These results enrich our understanding of water behavior on solid surfaces, especially the water wetting behaviors on uncharged super-hydrophilic metal surfaces.

  5. Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II

    SciTech Connect (OSTI)

    Wier, Don R. Chimanhusky, John S.; Czirr, Kirk L.; Hallenbeck, Larry; Gerard, Matthew G.; Dollens, Kim B.; Owen, Rex; Gaddis, Maurice; Moshell, M.K.

    2002-11-18

    The purpose of this project was to economically design an optimum carbon dioxide (CO2) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO2 horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar fields.

  6. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2002-03-26

    The objective of this project is two-fold. It will demonstrate use of nitrogen as a widely available, cost-effective and environmentally superior injectant for miscible floods. It will also demonstrate the effectiveness of horizontal wellbores in reducing gas breakthrough and cycling. It is expected that the demonstration will lead to implementation of nitrogen injection projects in areas without readily available carbon dioxide sources. Technology transfer will occur throughout the project.

  7. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR -- EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2004-08-24

    Budget Period 2 of the East Binger Unit (''EBU'') DOE Project has been. Recent activities included additional data gathering and project monitoring, plus initiation of work on an SPE paper on the modeling efforts of the project. Early production performance suggests horizontal wells do not provide sufficient additional production over vertical wells to justify their incremental cost. It will take more time to evaluate the impact of the horizontal wells on sweep and ultimate recovery, but it is unlikely that an improvement in recovery will be sufficient to make the overall economic value of horizontal wells greater than the economic value of vertical wells. Monitoring of overall performance of the pilot area continues. Overall response to the various projects continues to be very favorable. Injection into the pilot area has nearly doubled, while gas production and nitrogen content of produced gas have both decreased. Nitrogen recycle within the pilot area has dropped from 60% to 20%. Efforts to further disseminate knowledge gained through this project, by means of technical paper presentations to industry groups, are underway. Project monitoring and technology transfer will be focus areas of Budget Period 3.

  8. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2003-01-31

    Implementation of the work program of Budget Period 2 of the East Binger Unit (''EBU'') DOE Project continues. Major development work planned for the project includes the drilling of three horizontal production and one vertical injection wells, the conversion of five wells from production to injection service, and the expansion of injection capacity at the nitrogen management facility. Other work items include initiation of project monitoring and continued reservoir simulation. EBU 74G-2, the injection well planned to support the production of EBU 64-3H, has been drilled. Completion was underway at the time of this report. EBU 64-3H was fracture-stimulated during the period, further increasing production from this new horizontal well. Drilling of the final two wells of the pilot project is planned for 2003. Both are planned as horizontal producing wells. Work also began on projects aimed at increasing injection in the pilot area. The project to add compression and increase injection capacity at the nitrogen management facility was initiated, with completion targeted for March 2003. Additional producer-to-injector conversions are expected to be implemented around the same time. The revised history match of the simulation model has been completed, and work has begun to evaluate options with forecast simulations. The quality of the history match is significantly improved over the prior match. The predicted distribution of remaining reserves in the field is significantly changed. Decisions on projects planned for implementation later in Budget Period 2 will be guided by new forecasts.

  9. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir--East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-05-18

    A significant work program was implemented from 2002 to 2005 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, has increased an average of 60% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas have both decreased. After decreasing to 20-25% early in the project, nitrogen recycle (produced nitrogen volume divided by injected nitrogen volume) within the pilot area has risen to about 40%, still far below the 72% prior to initiation of the project. Poor areal sweep efficiency appears to be the primary cause of nitrogen cycling. Seven vertical and three horizontal wells have been drilled in the pilot area throughout the project, and most have had initial produced gas oil ratios and gas nitrogen contents significantly below the field averages. Given similar reservoir conditions of net thickness and gas sweep, vertical wells are performing nearly as well as horizontal wells. Additional vertical well drilling was completed in 2005 following the success of wells drilled from 2002 through 2004.

  10. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir -- East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-03-23

    A significant work program was implemented from 2002 to 2005 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, has increased an average of 50% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas have both decreased. After decreasing to 20-25% early in the project, nitrogen recycle (produced nitrogen volume divided by injected nitrogen volume) within the pilot area has risen back to about 42%, still far below the 72% prior to initiation of the project. Poor areal sweep efficiency appears to be the primary cause of nitrogen cycling. Seven vertical and three horizontal wells have been drilled in the pilot area throughout the project, and most have had initial produced gas oil ratios and gas nitrogen contents significantly below the field averages. Given similar reservoir conditions of net thickness and gas sweep, vertical wells are performing nearly as well as horizontal wells. Additional vertical well drilling was completed in 2005 following the success of wells drilled from 2002 through 2004.

  11. Removing a sheet from the surface of a melt using gas jets

    DOE Patents [OSTI]

    Kellerman, Peter L; Thronson, Gregory D; Sun, Dawei

    2014-04-01

    In one embodiment, a sheet production apparatus comprises a vessel configured to hold a melt of a material. A cooling plate is disposed proximate the melt and is configured to form a sheet of the material on the melt. A first gas jet is configured to direct a gas toward an edge of the vessel. A sheet of a material is translated horizontally on a surface of the melt and the sheet is removed from the melt. The first gas jet may be directed at the meniscus and may stabilize this meniscus or increase local pressure within the meniscus.

  12. On the existence of vapor-liquid phase transition in dusty plasmas

    SciTech Connect (OSTI)

    Kundu, M.; Sen, A.; Ganesh, R. [Institute for Plasma Research, Bhat, Gandhinagar 382 428, Gujarat (India); Avinash, K. [Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)

    2014-10-15

    The phenomenon of phase transition in a dusty-plasma system (DPS) has attracted some attention in the past. Earlier Farouki and Hamaguchi [J. Chem. Phys. 101, 9876 (1994)] have demonstrated the existence of a liquid to solid transition in DPS where the dust particles interact through a Yukawa potential. However, the question of the existence of a vapor-liquid (VL) transition in such a system remains unanswered and relatively unexplored so far. We have investigated this problem by performing extensive molecular dynamics simulations which show that the VL transition does not have a critical curve in the pressure versus volume diagram for a large range of the Yukawa screening parameter ? and the Coulomb coupling parameter ?. Thus, the VL phase transition is found to be super-critical, meaning that this transition is continuous in the dusty plasma model given by Farouki and Hamaguchi. We provide an approximate analytic explanation of this finding by means of a simple model calculation.

  13. Technology Solutions Case Study: Excavationless: Exterior-Side Foundation Insulation for Existing Homes

    SciTech Connect (OSTI)

    2014-09-01

    Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. This project describes an innovative, minimally invasive foundation insulation upgrade technique on an existing home that uses hydrovac excavation technology combined with a liquid insulating foam. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

  14. Improving the Energy Performance of New and Existing Commercial Buildings: A DOE Status Report

    SciTech Connect (OSTI)

    Holuj, Brian; Nicholls, Andrew K.; Sandahl, Linda J.; Torcellini, Paul

    2010-08-01

    It is technically and economically feasible for our nation’s commercial buildings to consume substantially less energy--and produce substantially less carbon dioxide--than they do. Yet owners of existing buildings are not taking full advantage of today’s best energy saving technologies and practices; and developers of new buildings are, most often, constructing to minimum energy codes rather than pushing for greater efficiency. The U.S. Department of Energy (DOE) is addressing these challenges by developing cost-effective technologies and practices that deliver significant improvements in commercial building performance. DOE, through its Commercial Building Initiative, is also collaborating with industry-leading companies and organizations to demonstrate, monitor, and help move these technologies from the laboratory to the marketplace. Ultimately, DOE’s dual strategy of pairing aggressive research and development with market engagement, demonstration, and deployment will dramatically improve the energy performance of new and existing commercial buildings throughout the nation.

  15. Dual surface interferometer

    DOE Patents [OSTI]

    Pardue, Robert M.; Williams, Richard R.

    1982-01-01

    A double-pass interferometer is provided which allows direct measurement of relative displacement between opposed surfaces. A conventional plane mirror interferometer may be modified by replacing the beam-measuring path cube-corner reflector with an additional quarter-wave plate. The beam path is altered to extend to an opposed plane mirrored surface and the reflected beam is placed in interference with a retained reference beam split from dual-beam source and retroreflected by a reference cube-corner reflector mounted stationary with the interferometer housing. This permits direct measurement of opposed mirror surfaces by laser interferometry while doubling the resolution as with a conventional double-pass plane mirror laser interferometer system.

  16. Dual surface interferometer

    DOE Patents [OSTI]

    Pardue, R.M.; Williams, R.R.

    1980-09-12

    A double-pass interferometer is provided which allows direct measurement of relative displacement between opposed surfaces. A conventional plane mirror interferometer may be modified by replacing the beam-measuring path cube-corner reflector with an additional quarterwave plate. The beam path is altered to extend to an opposed plane mirrored surface and the reflected beam is placed in interference with a retained reference beam split from dual-beam source and retroreflected by a reference cube-corner reflector mounted stationary with the interferometer housing. This permits direct measurement of opposed mirror surfaces by laser interferometry while doubling the resolution as with a conventional double-pass plane mirror laser interferometer system.

  17. Technology Solutions for New and Existing Homes: Optimized Slab-on-Grade

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Foundation Insulation Retrofits | Department of Energy Homes: Optimized Slab-on-Grade Foundation Insulation Retrofits Technology Solutions for New and Existing Homes: Optimized Slab-on-Grade Foundation Insulation Retrofits This project used a recently developed, three-dimensional, below-grade heat transfer simulation (BUilding Foundation Energy Transport Simulation-BCVTB, BUFETS-B) that operates as a subroutine of EnergyPlus to model 10 insulation upgrade options against a base (uninsulated)

  18. Building America Technology Solutions for New and Existing Homes: Duct in

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Conditioned Space in a Dropped Ceiling or Fur-down, Gainesville, Florida (Fact Sheet) | Department of Energy in Conditioned Space in a Dropped Ceiling or Fur-down, Gainesville, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Duct in Conditioned Space in a Dropped Ceiling or Fur-down, Gainesville, Florida (Fact Sheet) This case study examines a Building America builder partner's implementation of an inexpensive, quick and effective method of building a

  19. Building America Technology Solutions for New and Existing Homes: Impact of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate, Cocoa, Florida (Fact Sheet) | Department of Energy Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate, Cocoa, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid

  20. Building America Technology Solutions for New and Existing Homes: Long-Term

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Monitoring of Mini-Split Ductless Heat Pumps in the Northeast, Devens and Easthampton, Massachusetts | Department of Energy Long-Term Monitoring of Mini-Split Ductless Heat Pumps in the Northeast, Devens and Easthampton, Massachusetts Building America Technology Solutions for New and Existing Homes: Long-Term Monitoring of Mini-Split Ductless Heat Pumps in the Northeast, Devens and Easthampton, Massachusetts In this project, Building Science Corporation evaluated the long-term performance of

  1. Building America Technology Solutions for New and Existing Homes: Stand-off

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Furring in Deep Energy Retrofits | Department of Energy Stand-off Furring in Deep Energy Retrofits Building America Technology Solutions for New and Existing Homes: Stand-off Furring in Deep Energy Retrofits This research project, conducted by IBACOS and GreenHomes America, investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and

  2. TECHNOLOGIES TO ENHANCE OPERATION OF THE EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE

    SciTech Connect (OSTI)

    Anthony J. Smalley; Ralph E. Harris; Gary D. Bourn

    2003-10-01

    This report documents work performed in the fourth quarter of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes the following work: second field test; test data analysis for the first field test; operational optimization plans.

  3. TECHNOLOGIES TO ENHANCE OPERATION OF THE EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE

    SciTech Connect (OSTI)

    Anthony J. Smalley; Ralph E. Harris; Gary D. Bourn

    2004-01-01

    This report documents work performed in the fifth quarter of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes the following work: completion of analysis of data from first visit to second site; preparation for follow-up testing.

  4. Building Energy Simulation Test for Existing Homes (BESTEST-EX) Methodology: Preprint

    SciTech Connect (OSTI)

    Judkoff, R.; Polly, B.; Bianchi, M.; Neymark, J.

    2011-11-01

    The test suite represents a set of cases applying the new Building Energy Simulation Test for Existing Homes (BESTEST-EX) Methodology developed by NREL. (Judkoff et al. 2010a). The NREL team developed the test cases in consultation with the home retrofit industry (BESTEST-EX Working Group 2009), and adjusted the test specifications in accordance with information supplied by a participant with access to large utility bill datasets (Blasnik 2009).

  5. Operating Experience Level 1, Evaluation of Existing Facilities to DOE-STD-3009-2014

    Broader source: Energy.gov [DOE]

    This Operating Experience Level 1 (OE-1) document provides requirements related to an evaluation of existing Department of Energy (DOE) defense nuclear facilities' Documented Safety Analyses (DSAs) to the newly revised DOE Standard (STD) 3009-2014, Preparation of Nonreactor Nuclear Facility Documented Safety Analysis. The purpose of the evaluation is to gain insights that may enhance protection of the public from nuclear hazards at DOE defense nuclear facilities

  6. Discovered: Tiny Drops of "Perfect" Fluid that Existed in the Early

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Universe | U.S. DOE Office of Science (SC) Discovered: Tiny Drops of "Perfect" Fluid that Existed in the Early Universe Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) Community Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: Email Us More

  7. Existing Whole-House Solutions Case Study: Multifamily Individual Heating and Ventilation Systems, Lawrence, Massachusetts

    SciTech Connect (OSTI)

    2013-11-01

    The conversion of an older Massachusetts building into condominiums illustrates a safe, durable, and cost-effective solution for heating and ventilation systems that can potentially benefit millions of multifamily buildings. In this project, Merrimack Valley Habitat for Humanity (MVHfH) partnered with U.S. Department of Energy Building America team Building Science Corporation (BSC) to provide high performance affordable housing for 10 families in the retrofit of an existing mass masonry building (a former convent).

  8. Assessment of potential and existing problems concerning interface between electric utilities and cogenerators

    SciTech Connect (OSTI)

    Not Available

    1980-03-01

    The potential and existing problems concerning the interface between US electric utilities and cogenerators are considered by region. Also considered are regulatory barriers, rates and contracts, economic feasibility, and impact on system planning. Finally, the impact of the National Energy Act on the marketability potential of cogeneration is reviewed. The three appendixes summarize the utility meetings on cogeneration held in Washington, DC, Los Angeles, and Chicago.

  9. Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes

    SciTech Connect (OSTI)

    Cummings, James; Withers, Charles; Martin, Eric; Moyer, Neil

    2012-10-01

    This report is a revision of an earlier report titled: Measure Guideline: Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes. Revisions include: Information in the text box on page 1 was revised to reflect the most accurate information regarding classifications as referenced in the 2012 International Residential Code. “Measure Guideline” was dropped from the title of the report. An addition was made to the reference list.

  10. Geothermal-well completions: a survey and technical evaluation of existing equipment and needs

    SciTech Connect (OSTI)

    Nicholson, J.E.; Snyder, R.E.

    1982-07-01

    The geothermal environment and associated well completion problems are reviewed. Existing well completion equipment is surveyed and limitations are identified. A technical evaluation of selected completion equipment is presented. The technical evaluation concentrates on well cementing equipment and identifies potential failure mechanisms which limit the effectiveness of these tools. Equipment employed in sand control, perforating, and corrosion control are identified as potential subjects for future technical evaluation.

  11. Notice of Intent to Develop DOE O 470.6, Integrating Existing Technical Security Program Requirements

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2013-08-21

    This memorandum provides justification for the development of one integrated and consolidated set of requirements for the Department of Energy (DOE) Technical Security Program (TSP). This Order will combine the existing necessary requirements from DOE Manual (M) 205.1-3, Telecommunications Security Manual, dated 4-17-2006 and DOE M 470.4-4A chg.1, Information Security Manual, dated 10-12-2010; Section D -Technical Surveillance Countermeasures, into a single DOE Order defining the DOE TSP.

  12. Best Practices for HPSB Guiding Principles Implementation in Existing DOE Buildings

    SciTech Connect (OSTI)

    Henderson, Jordan W.

    2014-05-06

    The intent of this paper is to document an approach to screening existing buildings at DOE sites for High-Performance and Sustainable Buildings (HPSB) Guiding Principles (GPs) potential, developing policies and programs to address a majority of the HPSB GPs, and how to prioritize buildings with the greatest potential. This paper will also include example strategies for HPSB inventory and projection schedules and best practices on approaching and interpreting select criteria that have been troublesome to sites.

  13. Building America Technology Solutions for New and Existing Homes: Impact of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate | Department of Energy Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate Building America Technology Solutions for New and Existing Homes: Impact of Infiltration and Ventilation on Measured Space Conditioning Energy and Moisture Levels in the Hot-Humid Climate This project investigates the impact of air

  14. Building America Whole-House Solutions for Existing Homes: Community-Scale

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Modeling - Southeastern United States | Department of Energy Community-Scale Energy Modeling - Southeastern United States Building America Whole-House Solutions for Existing Homes: Community-Scale Energy Modeling - Southeastern United States Community-scale energy modeling and testing are useful for determining energy conservation measures that will effectively reduce energy use. To that end, IBACOS analyzed pre-retrofit daily utility data to sort homes by energy consumption,

  15. Building America Whole-House Solutions for Existing Homes: Conway Street

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Apartments - Greenfield, Massachusetts | Department of Energy Conway Street Apartments - Greenfield, Massachusetts Building America Whole-House Solutions for Existing Homes: Conway Street Apartments - Greenfield, Massachusetts Through recent research efforts, CARB has been evaluating strategies and technologies that can make dramatic improvements in energy performance in multifamily buildings. In this project, the team helped to transform a 100-year-old empty school building into 12 high

  16. Building America Whole-House Solutions for Existing Homes: Evaluation of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Missed Energy Saving Opportunity Based on Illinois Home Performance Program Field Data: Homeowner Selected Upgrades vs. Cost-Optimized Solutions, Chicago, Illinois | Department of Energy Missed Energy Saving Opportunity Based on Illinois Home Performance Program Field Data: Homeowner Selected Upgrades vs. Cost-Optimized Solutions, Chicago, Illinois Building America Whole-House Solutions for Existing Homes: Evaluation of Missed Energy Saving Opportunity Based on Illinois Home Performance

  17. Building America Whole-House Solutions for Existing Homes: Evaluation of a

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Multifamily Retrofit | Department of Energy a Multifamily Retrofit Building America Whole-House Solutions for Existing Homes: Evaluation of a Multifamily Retrofit A 37-unit apartment complex underwent multiple energy retrofit measures, including attic and wall insulation, low-e windows, and energy-efficient appliances, to comply with the Boulder SmartRegs Ordinance. Evaluation of a Multifamily Retrofit in Climate Zone 5 - Boulder, Colorado (765.88 KB) More Documents & Publications

  18. Building America Whole-House Solutions for Existing Homes: Greenbelt Homes,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Inc. Pilot Retrofit Project - Greenbelt, Maryland | Department of Energy Greenbelt Homes, Inc. Pilot Retrofit Project - Greenbelt, Maryland Building America Whole-House Solutions for Existing Homes: Greenbelt Homes, Inc. Pilot Retrofit Project - Greenbelt, Maryland This multiyear pilot energy efficiency retrofit project was undertaken by Greenbelt Homes, Inc, (GHI) a 1,566 home cooperative of circa 1930 and 1940 homes, to serve as a basis for decision making for the rollout of a

  19. Building America Whole-House Solutions for Existing Homes: Inverted Attic

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bulkhead for HVAC Ductwork | Department of Energy Inverted Attic Bulkhead for HVAC Ductwork Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ductwork within an inverted insulated bulkhead along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary. Inverted Attic Bulkhead for HVAC

  20. Building America Whole-House Solutions for Existing Homes: Islip Housing

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Authority Energy Efficiency Turnover Protocols, Islip, New York | Department of Energy Islip Housing Authority Energy Efficiency Turnover Protocols, Islip, New York Building America Whole-House Solutions for Existing Homes: Islip Housing Authority Energy Efficiency Turnover Protocols, Islip, New York In this project, ARIES worked with two public housing authorities (PHA) to develop packages of energy efficiency retrofit measures the PHAs can cost effectively implement at the time when units