Sample records for fan coil unit

  1. STATE OF CALIFORNIA HSPP/PSPP INSTALLATION; COOLING COIL AIRFLOW & FAN WATT DRAW TEST

    E-Print Network [OSTI]

    STATE OF CALIFORNIA HSPP/PSPP INSTALLATION; COOLING COIL AIRFLOW & FAN WATT DRAW TEST CEC- CF-4R TESTING CF-4R-MECH-22 HSPP/PSPP Installation; Cooling Coil Airflow & Fan Watt Draw Test (Page 1 of 3) Site of a Static Pressure Probe (HSPP), and Permanently installed Static Pressure Probe (PSPP) in the supply plenum

  2. STATE OF CALIFORNIA HSPP/PSPP INSTALLATION; COOLING COIL AIRFLOW & FAN WATT DRAW TEST

    E-Print Network [OSTI]

    STATE OF CALIFORNIA HSPP/PSPP INSTALLATION; COOLING COIL AIRFLOW & FAN WATT DRAW TEST CEC-CF-6R/PSPP Installation; Cooling Coil Airflow & Fan Watt Draw Test (Page 1 of 3) Site Address: Enforcement Agency: Permit), and Permanently installed Static Pressure Probe (PSPP) in the supply plenum When the Certificate of Compliance (CF

  3. Feasibility Study: Ductless Hydronic Distribution Systems with Fan Coil Delivery

    SciTech Connect (OSTI)

    Springer, D.; Dakin, B.; Backman, C.

    2012-07-01T23:59:59.000Z

    The primary objectives of this study are to estimate potential energy savings relative to conventional ducted air distribution, and to identify equipment requirements, costs, and barriers with a focus on ductless hydronic delivery systems that utilize water-to-air terminal units in each zone. Results indicate that annual heating and cooling energy use can be reduced by up to 27% assuming replacement of the conventional 13 SEER heat pump and coil with a similarly rated air-to-water heat pump.

  4. Performance of ECM controlled VAV fan powered terminal units

    E-Print Network [OSTI]

    Cramlet, Andrew Charles

    2009-05-15T23:59:59.000Z

    Empirical performance models of fan airflow, primary airflow and power consumption were developed for series and parallel variable air volume fan powered terminal units. An experimental setup and test procedure were created to test the terminal...

  5. Modeling of ECM Controlled Series Fan-powered VAV Terminal Units

    E-Print Network [OSTI]

    Yin, Peng

    2011-10-21T23:59:59.000Z

    Semi-empirical models for series fan-powered variable air volume terminal units (FPTUs) were developed based on models of the primary, plenum, fan airflow and the fan power consumption. The experimental setups and test procedures were developed...

  6. Performance of VAV Fan Powered Terminal Units: Experimental Results and Models for Parallel Units

    E-Print Network [OSTI]

    Furr, J.; O'Neal, D.; Davis, M.; Bryant, J.; Cramlet, A.

    ©2008 ASHRAE 83 ABSTRACT Empirical models of airflow output, power consumption, and primary airflow were developed for parallel fan powered variable air volume terminal units at typical operating pres- sures. Both 8 in. (203 mm) and 12 in. (304 mm...) primary air inlet terminal units from three manufacturers were evaluated. Generalized models were developed from the experimental data with coefficients varying by size and manufacturer. Fan power and airflow data were collected at down- stream static...

  7. Performance of VAV Parallel Fan Powered Terminal Units: Experimental Results and Models

    E-Print Network [OSTI]

    Furr, J.; O'Neal, D.; Davis, M.; Bryant, J.; Cramlet, A.

    savings because the static pressure of the supply fan can be set lower than with parallel terminal unit systems. Elleson (1993) conducted a field study of cold air distri- bution systems with series and parallel fan powered terminal units in two separate... consumption, combin- ing the power of the supply fan and terminal unitsfans, was greater for series terminal unit systems. The simulations included a reduced supply static pressure for series units of 0.25 in. w.g. (62 Pa) less than the parallel units...

  8. Performance of VAV Fan Powered Terminal Units: Experimental Results and Models for Series Units

    E-Print Network [OSTI]

    Furr, J.; O'Neal, D.; Davis, M.; Bryant, J.; Cramlet, A.

    ©2008 ASHRAE 91 ABSTRACT Empirical models of airflow output and power consump- tion were developed for series fan powered variable air volume terminal units at typical operating pressures. Terminal units with 8 in. (203 mm) and 12 in. (304 mm... pressures of 0.25 w.g. (63 Pa). Upstream static pressures ranged from 0.1 to 2.0 in w.g. (25 to 498 Pa). Data were collected at four different primary air damper positions and at four terminal unit fan speeds. Model variables included the RMS voltage...

  9. Thermosyphon coil arrangement for heat pump outdoor unit

    DOE Patents [OSTI]

    Draper, R.

    1984-05-22T23:59:59.000Z

    For a heat pump, the outdoor unit is provided with a coil and a refrigerant flow arrangement there for which is such that in the heating mode of operation of the heat pump they operate in a thermosyphon fashion. The coil has a feed portion and an exit portion leading to a separator drum from which liquid refrigerant is returned through downcomer line for recirculation to the feed portion. The coil is tilted upwardly from entry to exit by the angle alpha to enhance the clearance of the two phases of refrigerant from each other in the heating mode of operation. There is no thermosyphon function in the cooling mode of operation. 9 figs.

  10. Thermosyphon coil arrangement for heat pump outdoor unit

    DOE Patents [OSTI]

    Draper, Robert (Churchill, PA)

    1984-01-01T23:59:59.000Z

    For a heat pump, the outdoor unit is provided with a coil and a refrigerant flow arrangement therefor which is such that in the heating mode of operation of the heat pump they operate in a thermosyphon fashion. The coil 32 has a feed portion 30 and an exit portion 34 leading to a separator drum 36 from which liquid refrigerant is returned through downcomer line 42 for recirculation to the feed portion. The coil is tilted upwardly from entry to exit by the angle alpha to enhance the clearance of the two phases of refrigerant from each other in the heating mode of operation. There is no thermosyphon function in the cooling mode of operation.

  11. Development of models for series and parallel fan variable air volume terminal units

    E-Print Network [OSTI]

    Furr, James C., Jr

    2007-09-17T23:59:59.000Z

    Empirical models of airflow output and power consumption were developed for series and parallel fan powered variable air volume terminal units at typical design pressure conditions. A testing procedure and experimental setup were developed to test...

  12. Modeling of Electronically Commutated Motor Controlled Fan-powered Terminal Units

    E-Print Network [OSTI]

    Edmondson, Jacob Lee

    2011-02-22T23:59:59.000Z

    MODELING OF ELECTRONICALLY COMMUTATED MOTOR CONTROLLED FAN-POWERED TERMINAL UNITS A Thesis by JACOB LEE EDMONDSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2009 Major Subject: Mechanical Engineering MODELING OF ELECTRONICALLY COMMUTATED MOTOR CONTROLLED FAN-POWERED TERMINAL UNITS A Thesis by JACOB LEE EDMONDSON Submitted to the Office...

  13. Supply Fan Control for Constant Air Volume Air Handling Units

    E-Print Network [OSTI]

    Cho, Y.; Wang, G.; Liu, M.

    2007-01-01T23:59:59.000Z

    there is fixed VFD speed, as shown in Table 1 and Figure 11. On the other hand, the energy consumption is 3,896,493 Btu/hr when there is dynamic VFD speed. The thermal energy consumption of dynamic VFD speed is less than that of the fixed VFD speed by 44... %. Therefore, when the supply fan speed control is optimized, thermal energy can be reduced. Table 1. Comparison data of thermal energy consumption Floor Fixed VFD speed (Btu/hr) Dynamic VFD speed (Btu/hr) Energy saving (%) PLF 784,891 502,611 36...

  14. Performance Analysis of Dual-Fan, Dual-Duct Constant Volume Air-Handling Units

    E-Print Network [OSTI]

    Joo, I. S.; Liu, M.

    2001-01-01T23:59:59.000Z

    Dual-fan, dual-duct air-handling units introduce outside air directly into the cooling duct and use two variable speed devices to independently maintain the static pressure of the hot and the cold air ducts. Analytical models have been developed...

  15. Design and Operation of Fan-Coil Units in Using River Water as Chilled Water

    E-Print Network [OSTI]

    Jiang, A.; Chen, H.; Ma, W.; Zhu, H.

    2006-01-01T23:59:59.000Z

    ) in the system. An approximate formula is proposed for computing the cooling capacity of FCUs when the temperature of water supply is a little higher than designed temperature. Finally, recommendations are given for the design of the FCUs to follow dry operating...

  16. Design of voice coil motor dynamic focusing unit for a laser scanner

    SciTech Connect (OSTI)

    Lee, Moon G.; Kim, Gaeun; Lee, Chan-Woo; Lee, Soo-Hun; Jeon, Yongho, E-mail: princaps@ajou.ac.kr [Department of Mechanical Engineering, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-749 (Korea, Republic of)] [Department of Mechanical Engineering, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-749 (Korea, Republic of)

    2014-04-15T23:59:59.000Z

    Laser scanning systems have been used for material processing tasks such as welding, cutting, marking, and drilling. However, applications have been limited by the small range of motion and slow speed of the focusing unit, which carries the focusing optics. To overcome these limitations, a dynamic focusing system with a long travel range and high speed is needed. In this study, a dynamic focusing unit for a laser scanning system with a voice coil motor (VCM) mechanism is proposed to enable fast speed and a wide focusing range. The VCM has finer precision and higher speed than conventional step motors and a longer travel range than earlier lead zirconium titanate actuators. The system has a hollow configuration to provide a laser beam path. This also makes it compact and transmission-free and gives it low inertia. The VCM's magnetics are modeled using a permeance model. Its design parameters are determined by optimization using the Broyden–Fletcher–Goldfarb–Shanno method and a sequential quadratic programming algorithm. After the VCM is designed, the dynamic focusing unit is fabricated and assembled. The permeance model is verified by a magnetic finite element method simulation tool, Maxwell 2D and 3D, and by measurement data from a gauss meter. The performance is verified experimentally. The results show a resolution of 0.2 ?m and travel range of 16 mm. These are better than those of conventional focusing systems; therefore, this focusing unit can be applied to laser scanning systems for good machining capability.

  17. Large coil task and results of testing US coils

    SciTech Connect (OSTI)

    Haubenreich, P.N.

    1986-01-01T23:59:59.000Z

    The United States, EURATOM, Japan, and Switzerland have collaborated since 1978 in development of superconducting toroidal field coils for fusion reactor applications. The United States provided a test facility nd three coils; the other participants, one coil each. All coils have the same interface dimensions and performance requirements (stable at 8 T), but internal design was decided by each team. Two US coil teams chose bath-cooled NbTi, 10-kA conductors. One developed a Nb/sub 3/Sn conductor, cooled by internal flow, rated at 18 kA. All US coils have diagnostic instrumentation and imbedded heaters that enable stability tests and simulated nuclear heating experiments. In single-coil tests, each coil operated at full current in self-field (6.4 T). In six-coil tests that began in July 1986, one US coil and the Japanese coil hve been successfully operated at full current at 8 T. The other coils have operated as background coils while awaiting their turn as test coil. Coil tests have been informative and results gratifying. The facility has capably supported coil testing and its operation has provided information that will be useful in designing future fusion systems. Coil capabilities beyond nominal design points will be determined.

  18. Design Method for the Heating/Cooling Coil in the AHU Based on Fuzzy Logic - Part Two: Design of the Minimum Heat-Exchanging Unit

    E-Print Network [OSTI]

    Zhang, J.; Chen, Y.; Liang, Z.

    2006-01-01T23:59:59.000Z

    Considering a heating/cooling coil with adjustable heat-exchange area, an unequal type is put forward in this paper. Aiming at the application of such heat exchanger in an air-handling unit, restriction conditions are given for the minimum heat...

  19. Museum Fan Downloads

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

    Museum Fan Downloads Participate with us Participate Become a Volunteer Share Your Stories Museum Fan Downloads Q&A Blog Contact us invisible utility element Museum Fan Downloads...

  20. Outdoor unit construction for an electric heat pump

    DOE Patents [OSTI]

    Draper, Robert (Pittsburgh, PA); Lackey, Robert S. (Pittsburgh, PA)

    1984-01-01T23:59:59.000Z

    The outdoor unit for an electric heat pump is provided with an upper portion 10 containing propeller fan means 14 for drawing air through the lower portion 12 containing refrigerant coil means 16 in the form of four discrete coils connected together in a subassembly forming a W shape, the unit being provided with four adjustable legs 64 which are retracted in shipment, and are adjusted on site to elevate the unit to a particular height suitable for the particular location in which the unit is installed.

  1. Outdoor unit construction for an electric heat pump

    DOE Patents [OSTI]

    Draper, R.; Lackey, R.S.

    1984-09-11T23:59:59.000Z

    The outdoor unit for an electric heat pump is provided with an upper portion containing propeller fan means for drawing air through the lower portion containing refrigerant coil means in the form of four discrete coils connected together in a subassembly forming a W shape, the unit being provided with four adjustable legs which are retracted in shipment, and are adjusted on site to elevate the unit to a particular height suitable for the particular location in which the unit is installed. 4 figs.

  2. Improving the efficiency of centrifugal fans

    E-Print Network [OSTI]

    Wolfe, Clifford Kent

    1976-01-01T23:59:59.000Z

    P s static pressure corrected to fan outlet H2O Nomenclature (cont. ) Symbol Description Units p ~ N? N et e s S hp pressure corrected to specified speed and standard air density specified speed test fan speed total (mechanical...) efficiency static efficiency specific horsepower in. H 0 RPN RPN hp CHAPTER I INTRODUCTION The uses of centrifugal (squirrel cage) fans in our nation range from air conditioning in our homes to exhausting fumes from industrial plants. Because...

  3. Reducing auxiliary power consumption with F. D. fans

    SciTech Connect (OSTI)

    Henson, G.E. (PSI Energy, Cayuga Generating Station, Cayuga, IN (US))

    1990-01-01T23:59:59.000Z

    On June 6, 1988, the Unit No. 1-A forced draft fan at Cayuga station failed in service. This failure and the subsequent replacement of the 1-A F.D. fan and 1.-B F.D. fan with a more energy efficient design, resulted in a reduction in auxiliary power consumption by 2,000 Kilo watts/hr. Annual savings are projected to be $129,000.00 for 1989. Cayuga station was designed and constructed with pressurized boilers. The forced draft fans supplied combustion air, and also were designed to force this air through the entire boiler. In 1975, induced draft (I.D.) fans were installed. This design change modified the boiler to a balanced draft system, which reduced the force or pressure of the air that the F.D. fans were required to supply. Operating as a balance draft unit, the station had considerably more F.D. fan capacity than was necessary. After the failure, a system and economic evaluation warranted a change in design specifications for the F.D. fans, with the quantity of air remaining unchanged, but supplied at a lower pressure. This paper deals with the cause of failure, economic details and justification of the new design fans, as well as the final testing of the fans after being placed in service.

  4. Protective link for superconducting coil

    DOE Patents [OSTI]

    Umans, Stephen D. (Belmont, MA)

    2009-12-08T23:59:59.000Z

    A superconducting coil system includes a superconducting coil and a protective link of superconducting material coupled to the superconducting coil. A rotating machine includes first and second coils and a protective link of superconducting material. The second coil is operable to rotate with respect to the first coil. One of the first and second coils is a superconducting coil. The protective link is coupled to the superconducting coil.

  5. Chirality of Coiled Coils: Elasticity Matters Sebastien Neukirch

    E-Print Network [OSTI]

    Neukirch, Sébastien

    numbers: 87.15.La, 36.20.ÿr, 62.20.Dÿ Coiled coils consist of helices wound together to form a ropelike, and economy by which coiled-coil forming sequences can achieve high specificity to select particular binding energy of deformation for each structure. Coiled coils are made out of primitive helices wound around

  6. Chirality of coiled-coils: elasticity matters Sebastien Neukirch

    E-Print Network [OSTI]

    Neukirch, Sébastien

    zipper motif. PACS numbers: 36.20.-r, 87.15.-v 62.20.Dc, 87.15.La. Coiled-coils consist of -helices wound together to form a rope-like structure stabilized by hydrophobic interac- tions. The coiled-coil motif in part to the simplicity, versatility, and economy by which coiled-coil forming sequences can achieve

  7. TPX correction coil studies

    SciTech Connect (OSTI)

    Hanson, J.D.

    1994-11-03T23:59:59.000Z

    Error correction coils are planned for the TPX (Tokamak Plasma Experiment) in order to avoid error field induced locked modes and disruption. The FT (Fix Tokamak) code is used to evaluate the ability of these correction coils to remove islands caused by symmetry breaking magnetic field errors. The proposed correction coils are capable of correcting a variety of error fields.

  8. Record of Communication Concerning Ceiling Fan and Ceiling Fan...

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

    This memo provides an overview of communications made to DOE staff on the subject of possible changes to standards and test procedures for ceiling fans and ceiling fan light kits....

  9. Electromagnetic pump stator coil

    DOE Patents [OSTI]

    Fanning, A.W.; Dahl, L.R.

    1996-06-25T23:59:59.000Z

    An electrical stator coil for an electromagnetic pump includes a continuous conductor strip having first and second terminals at opposite ends thereof and an intermediate section disposed therebetween. The strip is configured in first and second coil halves, with the first coil half including a plurality of windings extending from the first terminal to the intermediate section, and the second coil half including a plurality of windings extending from the second terminal to the intermediate section. The first and second coil halves are disposed coaxially, and the first and second terminals are disposed radially inwardly therefrom with the intermediate section being disposed radially outwardly therefrom. 9 figs.

  10. Electromagnetic pump stator coil

    DOE Patents [OSTI]

    Fanning, Alan W. (San Jose, CA); Dahl, Leslie R. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    An electrical stator coil for an electromagnetic pump includes a continuous conductor strip having first and second terminals at opposite ends thereof and an intermediate section disposed therebetween. The strip is configured in first and second coil halves, with the first coil half including a plurality of windings extending from the first terminal to the intermediate section, and the second coil half including a plurality of windings extending from the second terminal to the intermediate section. The first and second coil halves are disposed coaxially, and the first and second terminals are disposed radially inwardly therefrom with the intermediate section being disposed radially outwardly therefrom.

  11. The Role of Filtration in Maintaining Clean Heat Exchanger Coils

    SciTech Connect (OSTI)

    Li Yang; James E. Braun; Eckhard A. Groll

    2004-06-30T23:59:59.000Z

    The main purpose of the study was to investigate the role of filtration in maintaining clean heat exchanger coils and overall performance. Combinations of 6 different levels of filtration (MERV 14, 11, 8, 6, 4, and no filter) and 4 different coils (an eight-row lanced-fin coil, HX8L), (an eight-row wavy-fin coil, HX8W), (a four-row lanced-fin coil, HX4L) and (a two-row lanced-fin coil, HX2L) were tested at 4 different air velocities (1.52, 2.03, 2.54,3.05 m/s (300, 400, 500, 600 ft/min)). The fouled conditions were obtained after injection of 600 grams of ASHRAE standard dust upstream of the filter/coil combination. This magnitude of dust is representative of a year of normal operation for an air conditioning system. The air-side pressure drops of the coils and filters and air-side heat transfer coefficients of the coils were determined from the measurements under the clean and fouled conditions. Depending upon the filter and coil test, the coil pressure drops increased in the range of 6%-30% for an air velocity at 2.54 m/s (500 ft/min). The impact was significantly greater for tests performed without a filter. The largest relative effect of fouling on pressure drop occurs for coils with fewer rows and having lanced fins. Coils with a greater number of rows can hold more dust so that a fixed amount of dust has a relatively smaller impact. The impact of fouling on air-side heat transfer coefficients was found to be relatively small. In some cases, heat transfer was actually enhanced due to additional turbulence caused by the presence of dust. The experimental results for pressure drops and heat transfer coefficients were correlated and the correlations were implemented within computer models of prototypical rooftop air conditioners and used to evaluate the impact of fouling on cooling capacity and EER. The equipment cooling capacity is reduced with fouling primarily because of a decrease in air flow due to the increase pressure drop rather than due to changes in h eat transfer coefficient. In most cases, the EER was reduced with fouling primarily due to increased fan power. However, the changes in EER were relatively small, in the range of 1%-9% (10%). For most cases, equipment having low efficiency filters had higher EER after fouling than equipment with high efficiency filters, because the high efficiency filter caused significantly higher pressure drops than the low efficiency filters. The extra filter pressure drop outweighed the reduced coil pressure drop after fouling. The impact of fan efficiency curves was also investigated in the study. The energy penalty associated with high efficiency filters was reduced considerably with higher efficiency fans. There is an energy penalty associated with the use of high efficiency filtration. However, the primary reason for selecting high efficiency filters for a particular application would be improved air quality. For HX8L, the quantity of dust passing through the coil with a MERV4 filter was approximately 30 times the dust passing the coil with a MERV14 filter. Without an upstream filter, the quantity of dust passing through the coil was approximately 60 times the value for a MERV14 filter.

  12. Superconducting magnetic coil

    DOE Patents [OSTI]

    Aized, D.; Schwall, R.E.

    1999-06-22T23:59:59.000Z

    A superconducting magnetic coil includes a plurality of sections positioned axially along the longitudinal axis of the coil, each section being formed of an anisotropic high temperature superconductor material wound about a longitudinal axis of the coil and having an associated critical current value that is dependent on the orientation of the magnetic field of the coil. The cross section of the superconductor, or the type of superconductor material, at sections along the axial and radial axes of the coil are changed to provide an increased critical current at those regions where the magnetic field is oriented more perpendicularly to the conductor plane, to thereby increase the critical current at these regions and to maintain an overall higher critical current of the coil. 15 figs.

  13. Superconducting magnetic coil

    DOE Patents [OSTI]

    Aized, Dawood (Marlboro, MA); Schwall, Robert E. (Northborough, MA)

    1999-06-22T23:59:59.000Z

    A superconducting magnetic coil includes a plurality of sections positioned axially along the longitudinal axis of the coil, each section being formed of an anisotropic high temperature superconductor material wound about a longitudinal axis of the coil and having an associated critical current value that is dependent on the orientation of the magnetic field of the coil. The cross section of the superconductor, or the type of superconductor material, at sections along the axial and radial axes of the coil are changed to provide an increased critical current at those regions where the magnetic field is oriented more perpendicularly to the conductor plane, to thereby increase the critical current at these regions and to maintain an overall higher critical current of the coil.

  14. Coiled Tubing Safety Manual

    SciTech Connect (OSTI)

    Crow, W.

    1999-04-06T23:59:59.000Z

    This document addresses safety concerns regarding the use of coiled tubing as it pertains to the preservation of personnel, environment and the wellbore.

  15. Development of a Laboratory Verified Single-Duct VAV System Model with Fan Powered Terminal Units Optimized Using Computational Fluid Dynamics

    E-Print Network [OSTI]

    Davis, Michael A.

    2011-10-21T23:59:59.000Z

    the static pressure drop as air passed through the unit over the full operating range of the FPTU. Computational fluid dynamics (CFD) models of typical a FPTU were developed and used to investigate opportunities for optimizing the design of FPTUs. The CFD...

  16. Fan System Assessment- End User Training

    Office of Energy Efficiency and Renewable Energy (EERE)

    Optimizing industrial fan systems can take on many forms, but any fan optimization project must meet the needs of the process. This self-paced workshop highlights the benefits of fan system...

  17. Correction coil cable

    DOE Patents [OSTI]

    Wang, S.T.

    1994-11-01T23:59:59.000Z

    A wire cable assembly adapted for the winding of electrical coils is taught. A primary intended use is for use in particle tube assemblies for the Superconducting Super Collider. The correction coil cables have wires collected in wire array with a center rib sandwiched therebetween to form a core assembly. The core assembly is surrounded by an assembly housing having an inner spiral wrap and a counter wound outer spiral wrap. An alternate embodiment of the invention is rolled into a keystoned shape to improve radial alignment of the correction coil cable on a particle tube in a particle tube assembly. 7 figs.

  18. Borehole induction coil transmitter

    DOE Patents [OSTI]

    Holladay, Gale (Livermore, CA); Wilt, Michael J. (Walnut Creek, CA)

    2002-01-01T23:59:59.000Z

    A borehole induction coil transmitter which is a part of a cross-borehole electromagnetic field system that is used for underground imaging applications. The transmitter consists of four major parts: 1) a wound ferrite or mu-metal core, 2) an array of tuning capacitors, 3) a current driver circuit board, and 4) a flux monitor. The core is wound with several hundred turns of wire and connected in series with the capacitor array, to produce a tuned coil. This tuned coil uses internal circuitry to generate sinusoidal signals that are transmitted through the earth to a receiver coil in another borehole. The transmitter can operate at frequencies from 1-200 kHz and supplies sufficient power to permit the field system to operate in boreholes separated by up to 400 meters.

  19. Catheter Coils Ergin Atalar

    E-Print Network [OSTI]

    Atalar, Ergin

    no ionizing radiation. High X-ray exposure to the patient, especially to children, can be harmful of MRI, the shape, size, and position of the receiver radiofrequency (RF) coils have critical importance

  20. Theory of Myelin Coiling

    E-Print Network [OSTI]

    Jung-Ren Huang

    2005-11-08T23:59:59.000Z

    A new model is proposed to explain coiling of myelins composed of fluid bilayers. This model allows the constituent bilayer cylinders of a myelin to be non-coaxial and the bilayer lateral tension to vary from bilayer to bilayer. The calculations show that a myelin would bend or coil to lower its free energy when the bilayer lateral tension is sufficiently large. From a mechanical point of view, the proposed coiling mechanism is analogous to the classical Euler buckling of a thin elastic rod under axial compression. The analysis of a simple two-bilayer case suggests that a bilayer lateral tension of about 1 dyne/cm can easily induce coiling of myelins of typical lipid bilayers. This model signifies the importance of bilayer lateral tension in determining the morphology of myelinic structures.

  1. Correction coil cable

    DOE Patents [OSTI]

    Wang, Sou-Tien (Danville, CA)

    1994-11-01T23:59:59.000Z

    A wire cable assembly (10, 310) adapted for the winding of electrical coils is taught. A primary intended use is for use in particle tube assemblies (532) for the superconducting super collider. The correction coil cables (10, 310) have wires (14, 314) collected in wire arrays (12, 312) with a center rib (16, 316) sandwiched therebetween to form a core assembly (18, 318 ). The core assembly (18, 318) is surrounded by an assembly housing (20, 320) having an inner spiral wrap (22, 322) and a counter wound outer spiral wrap (24, 324). An alternate embodiment (410) of the invention is rolled into a keystoned shape to improve radial alignment of the correction coil cable (410) on a particle tube (733) in a particle tube assembly (732).

  2. antiparallel coiled coil: Topics by E-print Network

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

    contract No. DE-AC02-76CH00016. Abstract A common coil design concept for 2-in-1 superconduct- ing Gupta, Ramesh 120 Fluctuations, Dynamics, and the Stretch-Coil Transition of...

  3. acidic coiled coil: Topics by E-print Network

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

    contract No. DE-AC02-76CH00016. Abstract A common coil design concept for 2-in-1 superconduct- ing Gupta, Ramesh 123 Fluctuations, Dynamics, and the Stretch-Coil Transition of...

  4. air handling unit: Topics by E-print Network

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

    case of fans, or indirectly, in the case of heat exchangers, which impose loads on the chiller and boiler plant. Air-handling units can comprise a myriad of subsystems (fans,...

  5. air handling units: Topics by E-print Network

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

    case of fans, or indirectly, in the case of heat exchangers, which impose loads on the chiller and boiler plant. Air-handling units can comprise a myriad of subsystems (fans,...

  6. Coil said to up heat reclaimer efficiency 3-5%

    SciTech Connect (OSTI)

    Not Available

    1984-08-06T23:59:59.000Z

    The Elton Corp. will introduce a new heat reclaimer coil that can be used with its flue gas heat claimer to produce high-temperature hot water. The new coil, which can bring water from 125 to 165 degrees for users that require hotter water, can increase fuel savings by 3 to 5 percent over the standard unit. At prices starting at $32,000 to generate 20 gallons per minute, the heat reclaimer can pay for itself in as little as four months. Both the heat reclaimer and coil are custom built at Eldon's Louisiana plant.

  7. Modular Coil Sys Requirements

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    CALCTBD Leads EM/Struct Analysis CALCTBD Mod Coil Interface Welded Joint CALC1400500 NCSX Magnet Fault Tube Block Clamp Asm SE140030R0 Clamp Block SE140027R0 Jumpers Base Block SE142C047R1 Jumpers Ins Sheet Conductor Cable Connect SE142C059R2 Insul Sheet Detail SE142C211R1 Insulating Spacer SE142C212R1 Lead Block

  8. Experimental Evaluation of Installed Cooking Exhaust Fan Performance

    SciTech Connect (OSTI)

    Singer, Brett C.; Delp, William W.; Apte, Michael G.

    2010-11-01T23:59:59.000Z

    The installed performance of cooking exhaust fans was evaluated through residential field experiments conducted on a sample of 15 devices varying in design and other characteristics. The sample included two rear downdraft systems, two under-cabinet microwave over range (MOR) units, three different installations of an under-cabinet model with grease screens across the bottom and no capture hood, two devices with grease screens covering the bottom of a large capture hood (one under-cabinet, one wall-mount chimney), four under-cabinet open hoods, and two open hoods with chimney mounts over islands. Performance assessment included measurement of airflow and sound levels across fan settings and experiments to quantify the contemporaneous capture efficiency for the exhaust generated by natural gas cooking burners.Capture efficiency is defined as the fraction of generated pollutants that are removed through the exhaust and thus not available for inhalation of household occupants. Capture efficiency (CE) was assessed for various configurations of burner use (e.g., single front, single back, combination of one front and one back, oven) and fan speed setting. Measured airflow rates were substantially lower than the levels noted in product literature for many of the units. This shortfall was observed for several units costing in excess of $1000. Capture efficiency varied widely (from<5percent to roughly 100percent) across devices and across conditions for some devices. As expected, higher capture efficiencies were achieved with higher fan settings and the associated higher air flow rates. In most cases, capture efficiencies were substantially higher for rear burners than for front burners. The best and most consistent performance was observed for open hoods that covered all cooktop burners and operated at higher airflow rates. The lowest capture efficiencies were measured when a front burner was used with a rear backdraft system or with lowest fan setting for above the range systems that do not cover the front burners.

  9. Experimental Evaluation of Installed Cooking Exhaust Fan Performance

    E-Print Network [OSTI]

    Singer, Brett C.

    2011-01-01T23:59:59.000Z

    High High Fan (cfm) Burner Fire Btu/hr A- 50 Fan/Plume EffLow Fan (cfm) Burner Fire Btu/hr Fan/Plume Eff Figure  3.  Med Fan (cfm) Burner Fire Btu/hr Fan/Plume Eff Figure  7.  

  10. A Parallel Coiled-Coil Tetramer with Offset Helices

    SciTech Connect (OSTI)

    Liu,J.; Deng, Y.; Zheng, Q.; Cheng, C.; Kallenbach, N.; Lu, M.

    2006-01-01T23:59:59.000Z

    Specific helix-helix interactions are fundamental in assembling the native state of proteins and in protein-protein interfaces. Coiled coils afford a unique model system for elucidating principles of molecular recognition between {alpha} helices. The coiled-coil fold is specified by a characteristic seven amino acid repeat containing hydrophobic residues at the first (a) and fourth (d) positions. Nonpolar side chains spaced three and four residues apart are referred to as the 3-4 hydrophobic repeat. The presence of apolar amino acids at the e or g positions (corresponding to a 3-3-1 hydrophobic repeat) can provide new possibilities for close-packing of {alpha}-helices that includes examples such as the lac repressor tetramerization domain. Here we demonstrate that an unprecedented coiled-coil interface results from replacement of three charged residues at the e positions in the dimeric GCN4 leucine zipper by nonpolar valine side chains. Equilibrium circular dichroism and analytical ultracentrifugation studies indicate that the valine-containing mutant forms a discrete {alpha}-helical tetramer with a significantly higher stability than the parent leucine-zipper molecule. The 1.35 {angstrom} resolution crystal structure of the tetramer reveals a parallel four-stranded coiled coil with a three-residue interhelical offset. The local packing geometry of the three hydrophobic positions in the tetramer conformation is completely different from that seen in classical tetrameric structures yet bears resemblance to that in three-stranded coiled coils. These studies demonstrate that distinct van der Waals interactions beyond the a and d side chains can generate a diverse set of helix-helix interfaces and three-dimensional supercoil structures.

  11. Phosphoprotein of Rinderpest Virus Forms a Tetramer Through Coiled Coil Region Important for Biological

    E-Print Network [OSTI]

    Srinivasan, N.

    1 Phosphoprotein of Rinderpest Virus Forms a Tetramer Through Coiled Coil Region Important exists as a tetramer. The tetramer is formed by coiled coil interaction as shown by circular dichroism: Paramyxoviridae, Rinderpest virus, Phosphoprotein, coiled coil, tetramer. INTRODUCTION Rinderpest virus (RPV

  12. Magnet Coil Shorted Turn Detector

    SciTech Connect (OSTI)

    Dinkel, J.A.; Biggs, J.E.

    1994-03-01T23:59:59.000Z

    The Magnet Coil Shorted Turn Detector has been developed to facilitate the location of shorted turns in magnet coils. Finding these shorted turns is necessary to determine failure modes that are a necessary step in developing future production techniques. Up to this point, coils with shorted turns had the insulation burned off without the fault having been located. This disassembly process destroyed any chance of being able to find the fault. In order to maintain a flux balance in a coupled system such as a magnet coil, the current in a shorted turn must be opposed to the incident current. If the direction of the current in each conductor can be measured relative to the incident current, then the exact location of the short can be determined. In this device, an AC voltage is applied to the magnet under test. A small hand held B-dot pickup coil monitors the magnetic field produced by current in the individual magnet conductors. The relative phase of this pickup coil voltage is compared to a reference signal derived from the input current to detect a current reversal as the B-dot pickup coil is swept over the conductors of the coil under test. This technique however, is limited to only those conductors that are accessible to the hand held probe.

  13. Building Pressure Control in VAV System with Relief Air Fan

    E-Print Network [OSTI]

    Pang, X.; Liu, M.; Zheng, B.

    2005-01-01T23:59:59.000Z

    , recently, Wang and Liu developed a motor power based fan airflow station., which determines the fan airflow using the measured fan motor power, the fan speed or control system command to VFD, and the in-situ fan motor power curve. Since the fan power... power can be obtained directly from VFD [5]. The motor power based fan airflow station method can be applied to the fan-tracking to perform a better building pressurization. The theory of the motor power based fan airflow station can be referred...

  14. Laminated magnet field coil sheath

    DOE Patents [OSTI]

    Skaritka, J.R.

    1987-05-15T23:59:59.000Z

    A method for manufacturing a magnetic cable trim coil in a sheath assembly for use in a cryogenic particle accelerator. A precisely positioned pattern of trim coil turns is bonded to a flexible substrate sheath that is capable of withstanding cryogenic operating conditions. In the method of the invention the flexible substrate sheath, with the trim coil pattern precisely location relative to a bore tube assembly of an accelerator and is then bonded to the bore tube with a tape suitable for cryogenic application. The resultant assembly can be readily handled and installed within an iron magnet yoke assembly of a suitable cryogenic particle accelerator. 1 fig.

  15. Laminated magnet field coil sheath

    DOE Patents [OSTI]

    Skaritka, John R. (Coram, NY)

    1987-12-01T23:59:59.000Z

    a method for manufacturing a magnet cable trim coil in a sheath assembly for use in a cryogenic particle accelerator. A precisely positioned pattern of trim coil turns is bonded to a flexible substrate sheath that is capable of withstanding cryogenic operating conditions. In the method of the invention the flexible sheath, with the trim coil pattern precisely positioned thereon, is accurately positioned at a precise location relative to a bore tube assembly of an accelerator and is then bonded to the bore tube with a tape suitable for cryogenic application. The resultant assembly can be readily handled and installed within an iron magnet yoke assembly of a suitable cryogenic particle accelerator.

  16. A review of the structural aspects of the Large Coil Task

    SciTech Connect (OSTI)

    Lubell, M.S.; Clinard, J.A.; Lue, J.W.; Luton, J.N.; McManamy, T.J.; Shen, S.S.

    1987-01-01T23:59:59.000Z

    The Large Coil Task (LCT) was initiated a decade ago by the United States (US), EURATOM (EU), Japan (JA), and Switzerland (CH) under the auspices of the International Energy Agency (IEA) to develop superconducting magnets for toroidal field coils for tokamak fusion reactors. Under the IEA agreement, EU, JA, and CH each fabricated one coil and shipped it to the Oak Ridge National Laboratory (ORNL), where the coils were assembled, along with three US coils (GD, GE, and WH), in the International Fusion Superconducting Magnet Test Facility (IFSMTF) which was designed and built at ORNL. In addition to the fact that six widely varying designs are being tested under similar conditions in the same test facility, the LCT project is unique in at least two other aspects. First, these are the largest superconducting (SC) coils fabricated and tested to date for research and development of SC magnets. Second, as the magnets themselves are the experiment, they are each heavily instrumented; consequently, detailed information on thermal, electrical, and mechanical performance has been obtained, some for the first time on SC magnets of any size. This paper concentrates on those aspects of the tests most relevant for fusion reactor magnets: the structural measurements and simulated nuclear heating tests. Data on the US PB coils (GD and GE) and the US FF coil (WH) are used to illustrate the results. All six coils have achieved 100% design current at 8-T field and that in a symmetric torus arrangement all six coils have been simultaneously energized to 8 T.

  17. Fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, R.R.; Cowan, T.E.

    1996-06-11T23:59:59.000Z

    Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

  18. Morphology and seismic stratigraphy of the Toyama deep sea fan

    E-Print Network [OSTI]

    Shepherd, David Barton

    1990-01-01T23:59:59.000Z

    are found in all fan regions, although facies F is more plentiful in slope regions. Since facies C, D, and G are found in both non-fan and lower fan turbi- dite sequences, fan deposits must be distinguished by their thickening and coarsening...

  19. Best Practices for Energy Efficient Cleanrooms: Fan-Filter Tengfang Xu

    E-Print Network [OSTI]

    LBNL-58639 Best Practices for Energy Efficient Cleanrooms: Fan-Filter Units Tengfang Xu June 15 by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Building Technology, U.S. Department of Energy under Contract No. DE-AC02-05CH11231. #12;Best Practice for Energy Efficient Cleanrooms

  20. Air-Side Energy Use Calculations for Four HVAC Systems: Dual Duct Constant Volume (DDCAV), Dual Duct Variable Volume (DDVAV), Constant Volume with Reheat (CAVRH), Variable Volume with Reheat (VAVRH), Four Pipe Fan Coil Unit (FC), Four Pipe Induction Unit (FI), and Single Zone (SZ) Systems, Revised June 2002

    E-Print Network [OSTI]

    Haberl, J. S.; Bou-Saada, T. E.; Saman, N. F.

    2001-01-01T23:59:59.000Z

    This report contains engineering calculations for seven (7) air-side, heating, ventilating and air conditioning systems (HVAC) systems, including: dual duct constant volume (DDCAV), dual duct variable volume (DDVAV), constant volume with reheat...

  1. Performance Assessment of Photovoltaic Attic Ventilator Fans 

    E-Print Network [OSTI]

    Parker, D. S.; Sherwin, J. R.

    2000-01-01T23:59:59.000Z

    has long been identified as a method to abate such heat gains. We present test results from using the photovoltaic (PV) attic ventilator fans in a test home to assess impact on attic and cooling energy performance....

  2. Synchronous and Cogged Fan Belt Performance Assessment

    SciTech Connect (OSTI)

    Cutler, D.; Dean, J.; Acosta, J.

    2014-02-01T23:59:59.000Z

    The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

  3. Performance Assessment of Photovoltaic Attic Ventilator Fans

    E-Print Network [OSTI]

    Parker, D. S.; Sherwin, J. R.

    2000-01-01T23:59:59.000Z

    has long been identified as a method to abate such heat gains. We present test results from using the photovoltaic (PV) attic ventilator fans in a test home to assess impact on attic and cooling energy performance....

  4. invited Paper CommercialApplications for COIL

    E-Print Network [OSTI]

    Carroll, David L.

    the decommissioning and decontamination (D&D) of nuclear facilities as a primary focus for COIL technology. D identified the decommissioning and decontamination (D&D) of nuclear facilities as a primary focus for COIL

  5. Performance Assessment of Photovoltaic Attic Ventilator Fans

    Broader source: Energy.gov [DOE]

    A case study of photovoltaic attic ventilator fans was conducted on an occupied single family home in Central Florida. Two fans were installed at mid-summer in an instrumented home where attic air temperature, meteorological conditions and space cooling electric power were measured. The home already had an attic radiant barrier, but still experienced attic air temperatures in excess of 130oF.

  6. Wedding ring shaped excitation coil

    DOE Patents [OSTI]

    MacLennan, Donald A. (Gaithersburg, MD); Tsai, Peter (Olney, MD)

    2001-01-01T23:59:59.000Z

    A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency.

  7. Rotor assembly including superconducting magnetic coil

    DOE Patents [OSTI]

    Snitchler, Gregory L. (Shrewsbury, MA); Gamble, Bruce B. (Wellesley, MA); Voccio, John P. (Somerville, MA)

    2003-01-01T23:59:59.000Z

    Superconducting coils and methods of manufacture include a superconductor tape wound concentrically about and disposed along an axis of the coil to define an opening having a dimension which gradually decreases, in the direction along the axis, from a first end to a second end of the coil. Each turn of the superconductor tape has a broad surface maintained substantially parallel to the axis of the coil.

  8. Development of In-Situ Fan Curve Measurement with One Airflow Measurement

    E-Print Network [OSTI]

    Liu, G.; Joo, I. S.; Song, L.; Liu, M.

    2003-01-01T23:59:59.000Z

    air duct. Theoretically this is an excellent solution. But it is very difficult to accurately measure such small static pressure differences as those required for building pressurization (typically 0 Pa (0.00 in. w.g.) to 25 Pa (0.10 in. w... method. The unit serves most of a 247,000 square feet office building in Omaha. The building has two main single duct variable air volume AHUs. Variable frequency drives are installed for each main AHU supply fan (2X125hp) and return air fan (3X40...

  9. A Built for Purpose Micro-Hole Coiled Tubing Rig (MCTR)

    SciTech Connect (OSTI)

    Bart Patton

    2007-09-30T23:59:59.000Z

    This report will serve as the final report on the work performed from the contract period October 2005 thru April 2007. The project 'A Built for Purpose Microhole Coiled Tubing Rig (MCTR)' purpose was to upgrade an existing state-of-the-art Coiled Tubing Drilling Rig to a Microhole Coiled Tubing Rig (MCTR) capable of meeting the specifications and tasks of the Department of Energy. The individual tasks outlined to meet the Department of Energy's specifications are: (1) Concept and development of lubricator and tool deployment system; (2) Concept and development of process control and data acquisition; (3) Concept and development of safety and efficiency improvements; and (4) Final unit integration and testing. The end result of the MCTR upgrade has produced a unit capable of meeting the following requirements: (1) Capable of handling 1-inch through 2-3/8-inch coiled tubing (Currently dressed for 2-3/8-inch coiled tubing and capable of running up to 3-1/2-inch coiled tubing); (2) Capable of drilling and casing surface, intermediate, production and liner hole intervals; (3) Capable of drilling with coiled tubing and has all controls and installation piping for a top drive; (4) Rig is capable of running 7-5/8-inch range 2 casing; and (5) Capable of drilling 5,000 ft true vertical depth (TVD) and 6,000 ft true measured depth (TMD).

  10. Coiled transmission line pulse generators

    DOE Patents [OSTI]

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09T23:59:59.000Z

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  11. The effect of fan and heat sink design on heat removal from microprocessor chips

    E-Print Network [OSTI]

    Baltrip, Kedra G

    1997-01-01T23:59:59.000Z

    Air flow and heat removal characteristics for fan/heat sink designs used to cool Pentium class processors were analyzed. Five designs were tested for fan speed, differential and static nozzle pressure, static fan pressure, fan input current...

  12. assess fluvial fan: Topics by E-print Network

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

    mounting setup was such that fan with uniform blades can be tested. Generally, fans have cut blades on the vehicle due to mounting accessories. We describe a patented design of...

  13. alluvial fan surfaces: Topics by E-print Network

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

    mounting setup was such that fan with uniform blades can be tested. Generally, fans have cut blades on the vehicle due to mounting accessories. We describe a patented design of...

  14. alluvial fan nye: Topics by E-print Network

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

    mounting setup was such that fan with uniform blades can be tested. Generally, fans have cut blades on the vehicle due to mounting accessories. We describe a patented design of...

  15. Cooling efficiency of a brushless direct current stand fan

    E-Print Network [OSTI]

    Yang, Bin; Schiavon, Stefano; Sekhar, Chandra; Cheong, David; Tham, Kwok Wai; Nazaroff, William W

    2015-01-01T23:59:59.000Z

    eq (°C) Front Side Fig. 4. Cooling effect comparison betweenmanikin distance. 3.1.2. Cooling Fan Efficiency (CFE) indexdevices [41-42]. Local cooling for front and side fan-

  16. Cooling efficiency of a brushless direct current stand fan

    E-Print Network [OSTI]

    Yang, Bin; Schiavon, Stefano; Sekhar, Chandra; Cheong, David; Tham, Kwok Wai; Nazaroff, William W

    2015-01-01T23:59:59.000Z

    orientations for 24 °C dry-bulb temperature, fan speedchamber under four dry-bulb temperatures (24, 26, 28, and 30CFE index is influenced by dry-bulb temperature, fan speed

  17. Use of VFDs on Asphalt Plant Induced Draft Fans

    E-Print Network [OSTI]

    Anderson, G. R.; Case, P. L.; Lowery, J.

    2005-01-01T23:59:59.000Z

    Studies of 10 asphalt plants in the Intermountain Region have identified average ID fan energy savings of 68% by controlling airflow using Variable Frequency Drives (VFDs) on the fan motors in place of damper control (inlet or outlet). Average...

  18. Ultra-short nacelles for low fan pressure ratio propulsors

    E-Print Network [OSTI]

    Peters, Andreas, Ph. D. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    This thesis addresses the uncharted inlet and nacelle design space for low pressure ratio fans for advanced aeroengines. A key feature in low fan pressure ratio (FPR) propulsors with short inlets and nacelles is the increased ...

  19. Fan-less long range alpha detector

    DOE Patents [OSTI]

    MacArthur, D.W.; Bounds, J.A.

    1994-05-10T23:59:59.000Z

    A fan-less long range alpha detector is disclosed which operates by using an electrical field between a signal plane and the surface or substance to be monitored for air ions created by collisions with alpha radiation. Without a fan, the detector can operate without the possibility of spreading dust and potential contamination into the atmosphere. A guard plane between the signal plane and the electrically conductive enclosure and maintained at the same voltage as the signal plane, reduces leakage currents. The detector can easily monitor soil, or other solid or liquid surfaces. 2 figures.

  20. Fan System Assessment Tool | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721Energy 3_adv_battery.pdf More Fact Sheet:BetaFederalFall: EnergyFanFan

  1. Magnet coils for RHIC EBIS Alexander Pikin

    E-Print Network [OSTI]

    supplies for all 3 coils is ±0.1% (pulse-to-pulse and long term, not to the flatness of the current pulse for electric current and in parallel for cooling water. The geometrical parameters of this coil are summarized.26 mm ID of cooling channel 2.87 mm Cross sectional area of the conductor 21.2 mm2 Length of the coil

  2. Helical axis stellarator with noninterlocking planar coils

    DOE Patents [OSTI]

    Reiman, Allan (Princeton, NJ); Boozer, Allen H. (Rocky Hill, NJ)

    1987-01-01T23:59:59.000Z

    A helical axis stellarator using only noninterlocking planar, non-circular coils, generates magnetic fields having a magnetic well and large rotational transform with resultant large equilibrium beta.

  3. Adjustable Speed- A Tool for Saving Energy Losses in Pumps, Fans, Fans, Blowers and Compressors

    E-Print Network [OSTI]

    Hickok, H. N.

    Petroleum and chemical plants of today are effectively cutting energy losses in their plants thermally, electrically, and mechanically in their process equipment. In rotating process equipment such as pumps, fans, compressors, and blowers, much...

  4. Knowing fans, knowing music : an exploration of fan interaction on Twitter

    E-Print Network [OSTI]

    McCollum, Nick

    2011-01-01T23:59:59.000Z

    and the Origins of Music Fandom in Nineteenth-CenturyAmerica. ” In Fandom: Identities and Communities in aWhy Study Fans? ” In Fandom: Identities and Communities in a

  5. An introduction to financial econometrics Jianqing Fan

    E-Print Network [OSTI]

    Wang, Lily

    An introduction to financial econometrics Jianqing Fan Department of Operation Research econometrics? This simple question does not have a simple answer. The boundary of such an interdisciplinary speaking, financial econometrics is to study quantitative problems arising from finance. It uses sta

  6. Final Report Independent Verification Survey of the High Flux Beam Reactor, Building 802 Fan House Brookhaven National Laboratory Upton, New York

    SciTech Connect (OSTI)

    Harpeneau, Evan M. [Oak Ridge Institute for Science and Education, Oak Ridge, TN (United States). Independent Environmental Assessment and Verification Program

    2011-06-24T23:59:59.000Z

    On May 9, 2011, ORISE conducted verification survey activities including scans, sampling, and the collection of smears of the remaining soils and off-gas pipe associated with the 802 Fan House within the HFBR (High Flux Beam Reactor) Complex at BNL. ORISE is of the opinion, based on independent scan and sample results obtained during verification activities at the HFBR 802 Fan House, that the FSS (final status survey) unit meets the applicable site cleanup objectives established for as left radiological conditions.

  7. Fan-beam intensity modulated proton therapy

    SciTech Connect (OSTI)

    Hill, Patrick [Department of Radiation Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 (United States)] [Department of Radiation Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 (United States); Westerly, David [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado 80045 (United States)] [Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado 80045 (United States); Mackie, Thomas [Medical Devices, Morgridge Institute for Research, University of Wisconsin, Madison, Wisconsin 53715 (United States)] [Medical Devices, Morgridge Institute for Research, University of Wisconsin, Madison, Wisconsin 53715 (United States)

    2013-11-15T23:59:59.000Z

    Purpose: This paper presents a concept for a proton therapy system capable of delivering intensity modulated proton therapy using a fan beam of protons. This system would allow present and future gantry-based facilities to deliver state-of-the-art proton therapy with the greater normal tissue sparing made possible by intensity modulation techniques.Methods: A method for producing a divergent fan beam of protons using a pair of electromagnetic quadrupoles is described and particle transport through the quadrupole doublet is simulated using a commercially available software package. To manipulate the fan beam of protons, a modulation device is developed. This modulator inserts or retracts acrylic leaves of varying thickness from subsections of the fan beam. Each subsection, or beam channel, creates what effectively becomes a beam spot within the fan area. Each channel is able to provide 0–255 mm of range shift for its associated beam spot, or stop the beam and act as an intensity modulator. Results of particle transport simulations through the quadrupole system are incorporated into the MCNPX Monte Carlo transport code along with a model of the range and intensity modulation device. Several design parameters were investigated and optimized, culminating in the ability to create topotherapy treatment plans using distal-edge tracking on both phantom and patient datasets.Results: Beam transport calculations show that a pair of electromagnetic quadrupoles can be used to create a divergent fan beam of 200 MeV protons over a distance of 2.1 m. The quadrupole lengths were 30 and 48 cm, respectively, with transverse field gradients less than 20 T/m, which is within the range of water-cooled magnets for the quadrupole radii used. MCNPX simulations of topotherapy treatment plans suggest that, when using the distal edge tracking delivery method, many delivery angles are more important than insisting on narrow beam channel widths in order to obtain conformal target coverage. Overall, the sharp distal falloff of a proton depth-dose distribution was found to provide sufficient control over the dose distribution to meet objectives, even with coarse lateral resolution and channel widths as large as 2 cm. Treatment plans on both phantom and patient data show that dose conformity suffers when treatments are delivered from less than approximately ten angles. Treatment time for a sample prostate delivery is estimated to be on the order of 10 min, and neutron production is estimated to be comparable to that found for existing collimated systems.Conclusions: Fan beam proton therapy is a method of delivering intensity modulated proton therapy which may be employed as an alternative to magnetic scanning systems. A fan beam of protons can be created by a set of quadrupole magnets and modified by a dual-purpose range and intensity modulator. This can be used to deliver inversely planned treatments, with spot intensities optimized to meet user defined dose objectives. Additionally, the ability of a fan beam delivery system to effectively treat multiple beam spots simultaneously may provide advantages as compared to spot scanning deliveries.

  8. Undulator Long Coil Measurement System Tests

    SciTech Connect (OSTI)

    Wolf, Zachary; Levashov, Yurii; /SLAC; ,

    2010-11-24T23:59:59.000Z

    The first and second field integrals in the LCLS undulators must be below a specified limit. To accurately measure the field integrals, a long coil system is used. This note describes a set of tests which were used to check the performance of the long coil system. A long coil system was constructed to measure the first and second field integrals of the LCLS undulators. The long coil measurements of the background fields were compared to field integrals obtained by sampling the background fields and numerically calculating the integrals. This test showed that the long coil has the sensitivity required to measure at the levels specified for the field integrals. Tests were also performed by making long coil measurements of short magnets of known strength placed at various positions The long coil measurements agreed with the known field integrals obtained by independent measurements and calculation. Our tests showed that the long coil measurements are a valid way to determine whether the LCLS undulator field integrals are below the specified limits.

  9. Jeremy Carter Correctional Magnetic Coils for Beryllium-

    E-Print Network [OSTI]

    Hart, Gus

    Jeremy Carter Correctional Magnetic Coils for Beryllium- based Ion Plasma Chamber Physics 492R the voltage on the far end of the chamber must be turned on. Then a beam of ions is sent into the chamber was to develop and assemble two sets of identical magnetic coils for the Beryllium based plasma chamber

  10. Helical axis stellarator with noninterlocking planar coils

    DOE Patents [OSTI]

    Reiman, A.; Boozer, A.H.

    1984-03-06T23:59:59.000Z

    The present invention generates stellarator fields having favorable properties (magnetic well and large rotational transform) by a simple coil system consisting only of unlinked planar non-circular coils. At large rotational transform toroidal effects on magnetic well and rotational transform are small and can be ignored. We do so herein, specializing in straight helical systems.

  11. Operator coil monitoring acceptance test procedure

    SciTech Connect (OSTI)

    Erhart, M.F.

    1995-06-05T23:59:59.000Z

    The readiness of the Data Acquisition and Control System (DACS) to provide monitoring and control of the Programmable Logic Controller (PLC) abort coils from the Master and RSS stations will be systematically tested during performance of this procedure. It should be noted that these are not physical abort coils but software coils controlled by the software`s ladder logic. The readiness of the DACS to properly interface with the ENRAF wire level gauge installed in the SY101 storage tank will also be tested. During this test, a verification of all abort coil indications will be conducted at the DACS Development Facility in the 306E Building by injecting an input signal for each DACS sensor that has an associated abort coil until the abort coil actuates, and then ensuring that the status of the abort coil indicated at the Master and RSS stations correct. Each abort coil will also be tested to ensure that the ``ENABLE`` and ``DISABLE`` controls from the Master and RSS stations function correctly, and only with the use of proper passwords.

  12. Operator coil monitoring Acceptance Test Procedure

    SciTech Connect (OSTI)

    Erhart, M.F.

    1995-05-16T23:59:59.000Z

    The readiness of the Data Acquisition and Control System (DACS) to provide monitoring and control of the Programmable Logic Controller (PLC) abort coils from the Master and RSS stations will be systematically tested during performance of this procedure. It should be noted that these are not physical abort coils but software coils controlled by the software`s ladder logic. The readiness of the DACS to properly interface with the ENRAF wire level gauge installed in the SY-101 storage tank will also be tested. During this test, a verification of all abort coil indications will be conducted at the DACS Development Facility in the 306E Building by injecting an input signal for each DACS sensor that has an associated abort coil until the abort coil actuates, and then ensuring that the status of the abort coil indicated at the Master and RSS stations is correct. Each abort coil will also be tested to ensure that the ``ENABLE`` and ``DISABLE`` controls from the Master and RSS stations function correctly, and only with the use of proper passwords.

  13. GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL

    E-Print Network [OSTI]

    Green, M.A.

    2010-01-01T23:59:59.000Z

    FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL M. A. Green,Time Projection Cnamber) thin superconducting solenoid. Thefailure of the first superconducting coil at the Lawrence

  14. eUnitedStates,China,andGlobalGovernance: A New Agenda for a New Era

    E-Print Network [OSTI]

    Indiana University

    eUnitedStates,China,andGlobalGovernance: A New Agenda for a New Era e Research Center for Chinese of Social Sciences April 2013 2013 4 Scott Kennedy He Fan #12;The United States, China, and Global, Beijing, China Authors: Scott Kennedy and He Fan Production Editor: Andrea Wald Printer: Rongda Quick

  15. Mass and fans in attached sunspaces

    SciTech Connect (OSTI)

    Jones, R.W.; McFarland, R.D.; Lazarus, G.S.

    1982-01-01T23:59:59.000Z

    The effect of thermal storage mass on the performance of an attached sunspace is investigated for a particular design in Boston. Mass in the sunspace and in the adjoining building are compared. Performance is evaluated in terms of temperature conditions in the sunspace and delivery of useful solar heat to the adjoining building. The dependence of the results on the manner of heat delivery is studied. Both natural convection and fan-forced air flow are included.

  16. COMMON COIL MAGNET PROGRAM AT BNL.

    SciTech Connect (OSTI)

    GUPTA, R.; ANERELLA, M.; COZZOLINO, J.; ESCALLIER, J.; GANETIS, G.; GHOSH, A.; HARRISON, M.; MORGAN, G.; MURATORE, J.; PARKER, B.; SAMPSON, W.; WANDERER, P.

    2000-09-17T23:59:59.000Z

    The goal of the common coil magnet R&D program at Brookhaven National Laboratory (BNL) is to develop a 12.5 T, 40 mm aperture dipole magnet using ''React and Wind Technology'' with High Temperature Superconductors (HTS) playing a major role. Due to its ''conductor friendly'' nature, the common coil design is attractive for building high field 2-in-1 dipoles with brittle materials such as HTS and Nb{sub 3}Sn. At the current rate of development, it is expected that a sufficient amount of HTS with the required performance would be available in a few years for building a short magnet. In the interim, the first generation dipoles will be built with Nb{sub 3}Sn superconductor. They will use a ''React and Wind'' technology similar to that used in HTS and will produce a 12.5 T central field in a 40 mm aperture. The Nb{sub 3}Sn coils and support structure of this magnet will become a part of the next generation hybrid magnet with inner coils made of HTS. To develop various aspects of the technology in a scientific and experimental manner, a 10-turn coil program has been started in parallel. The program allows a number of concepts to be evaluated with a rapid throughput in a cost-effective way. Three 10-turn Nb{sub 3}Sn coils have been built and one HTS coil is under construction. The initial test results of this ''React & Wind'' 10-turn coil program are presented. It is also shown that a common coil magnet design can produce a field quality that is as good as a conventional cosine theta design.

  17. Development of Power-head based Fan Airflow Station

    E-Print Network [OSTI]

    Wang, G.; Liu, M.

    2005-01-01T23:59:59.000Z

    related to the measured fan speed. Actually the measured fan speed is assumed to equal the motor synchronous speed, which is proportional to the VFD frequency. Theoretically it is not true. The difference between the synchronous speed and motor speed... the basic theory, experiment and results of the power-head based airflow station. Theory Figure 1 shows variable speed fan connection schematic. VFD is normally installed on the motor to adjust the motor speed by modulating frequency. Typically...

  18. Experimental Investigation of Direct Expansion Dynamic Ice-on-coil Storage System Used in Residential Buildings

    E-Print Network [OSTI]

    Zheng, M.; Kong, F.; Han, Z.; Liu, W.

    2006-01-01T23:59:59.000Z

    better heat exchanger ability caused by the larger surface of sheet ice, steady and low chilled water temperature was directly extracted from an ice storage tank. The longitudinal and axial fin-added coils improved the COP of the refrigerating unit...

  19. Morphology and seismic stratigraphy of the Toyama deep sea fan 

    E-Print Network [OSTI]

    Shepherd, David Barton

    1990-01-01T23:59:59.000Z

    of the National Geophysical Data Center (NGDC) was obtained from the Geodynamics Research Institute at Texas A&M University, and along with additional data obtained from NAVOCEANO, provided significant control for mapping in the study area (Figure 9). The GSJ.... C. Hilde The Toyama Deep Sea Fan, a contemporary depositional feature located in the Japan Sea, is a canyon-fed elongate fan system with pronounced lobes in both the Yamato and Japan Basins. The Toyama Fan is the eighth largest modern fan system...

  20. DOE Publishes Final Rule for Residential Furnace Fan Test Procedure...

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

    (DOE) has published a final rule regarding test procedures for residential furnace fans. 79 FR 500 (January 3, 2014). Find more information on the rulemaking, including milestones,...

  1. Electrical wire insulation and electromagnetic coil

    DOE Patents [OSTI]

    Bich, George J. (Penn Hills, PA); Gupta, Tapan K. (Monroeville, PA)

    1984-01-01T23:59:59.000Z

    An electromagnetic coil for high temperature and high radiation application in which glass is used to insulate the electrical wire. A process for applying the insulation to the wire is disclosed which results in improved insulation properties.

  2. Cooling arrangement for a superconducting coil

    DOE Patents [OSTI]

    Herd, K.G.; Laskaris, E.T.

    1998-06-30T23:59:59.000Z

    A superconducting device is disclosed, such as a superconducting rotor for a generator or motor. A vacuum enclosure has an interior wall surrounding a cavity containing a vacuum. A superconductive coil is placed in the cavity. A generally-annularly-arranged, thermally-conductive sheet has an inward-facing surface contacting generally the entire outward-facing surface of the superconductive coil. A generally-annularly-arranged coolant tube contains a cryogenic fluid and contacts a generally-circumferential portion of the outward-facing surface of the sheet. A generally-annularly-arranged, thermally-insulative coil overwrap generally circumferentially surrounds the sheet. The coolant tube and the inward-facing surface of the coil overwrap together contact generally the entire outward-facing surface of the sheet. 3 figs.

  3. Coiling of elastic rods on rigid substrates

    E-Print Network [OSTI]

    Khalid Jawed, Mohammad

    We investigate the deployment of a thin elastic rod onto a rigid substrate and study the resulting coiling patterns. In our approach, we combine precision model experiments, scaling analyses, and computer simulations toward ...

  4. Coiling of elastic rods on rigid substrates

    E-Print Network [OSTI]

    Khalid Jawed, Mohammad

    2014-01-01T23:59:59.000Z

    We investigate the deployment of a thin elastic rod onto a rigid substrate and study the resulting coiling patterns. In our approach, we combine precision model experiments, scaling analyses, and computer simulations towards ...

  5. Modular test facility for HTS insert coils

    SciTech Connect (OSTI)

    Lombardo, V; Bartalesi, A.; Barzi, E.; Lamm, M.; Turrioni, D.; Zlobin, A.V.; /Fermilab

    2009-10-01T23:59:59.000Z

    The final beam cooling stages of a Muon Collider may require DC solenoid magnets with magnetic fields in the range of 40-50 T. In this paper we will present a modular test facility developed for the purpose of investigating very high field levels with available 2G HTS superconducting materials. Performance of available conductors is presented, together with magnetic calculations and evaluation of Lorentz forces distribution on the HTS coils. Finally a test of a double pancake coil is presented.

  6. Optimized Control Of Steam Heating Coils

    E-Print Network [OSTI]

    Ali, Mir Muddassir

    2012-02-14T23:59:59.000Z

    cooling. II. Flooding of coils with condensate and its subsequent freezing when outside air temperature falls below 32?F. III. Increased maintenance cost due to water hammer, corrosion of coils in the presence of non-condensable gases and leaking steam... monotonically as the steam pressure increases, a higher steam pressure may lead to overheating of the air and result in simultaneous heating and cooling. In addition to energy waste due to simultaneous heating and cooling, an improper operating strategy can...

  7. Radiation-hard electrical coil and method for its fabrication

    DOE Patents [OSTI]

    Grieggs, R.J.; Blake, R.D.; Gac, F.D.

    1982-06-29T23:59:59.000Z

    A radiation-hard insulated electrical coil and method for making the same are disclosed. In accordance with the method, a conductor, preferably copper, is wrapped with an aluminum strip and then tightly wound into a coil. The aluminum-wrapped coil is then annealed to relax the conductor in the coiled configuration. The annealed coil is then immersed in an alkaline solution to dissolve the aluminum strip, leaving the bare conductor in a coiled configuration with all of the windings closely packed yet uniformly spaced from one another. The coil is then insulated with a refractory insulating material. In the preferred embodiment, the coil is insulated by coating it with a vitreous enamel and subsequently potting the enamelled coil in a castable ceramic concrete. The resulting coil is substantially insensitive to radiation and may be operated continuously in high radiation environments for long periods of time.

  8. Structure of bacteriophage T4 fibritin: a segmented coiled coil and the role of the C-terminal domain

    E-Print Network [OSTI]

    Tao, Yizhi Jane

    Structure of bacteriophage T4 fibritin: a segmented coiled coil and the role of the C-terminal and a small globular C-terminal domain about a crystallographic threefold axis. The coiled-coil domain is divided into three segments that are separated by insertion loops. The C-terminal domain, which consists

  9. Training: Fan Systems | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMayDepartmentTest for PumpingThe|of Energy TopCharterCompressed AirFan

  10. A study of the design procedure and the performance characteristics of axial exhaust fans

    E-Print Network [OSTI]

    Barker, Gilbert Hamilton

    1949-01-01T23:59:59.000Z

    , unnecessary to balance any set of blades used~ because no fan vibration occurred during testing, Ths motor f or the fan vas a one third horsepower motor The original research plan called for construction of onjy one set of blades vitA an aspect, ratio... . . . . . . . . . . . ~ . ~ . 51 7, Fan Efficiency of L8-inch Fans . . . . . . . . . . . . . . , . 52 8 Variation of Fan Eff'iciency sith Pitch 53 Variation of Fau Efficiency with Pitch . . . . . . . . . . . 54 10. Fan Capacity for Blade with Aspect' Ratio ~ Ons...

  11. Transient Heat Transfer in TCAP Coils

    SciTech Connect (OSTI)

    Steimke, J.L.

    1999-03-09T23:59:59.000Z

    The Thermal Cycling Absorption Process (TCAP) is used to separate isotopes of hydrogen. TCAP involves passing a stream of mixed hydrogen isotopes through palladium deposited on kieselguhr (Pd/k) while cycling the temperature of the Pd/k. Kieselguhr is a silica mineral also called diatomite. To aid in the design of a full scale facility, the Thermal Fluids Laboratory was used by the Chemical and Hydrogen Technology Section to compare the heat transfer properties of three different configurations of stainless steel coils containing kieselguhr and helium. Testing of coils containing Pd/k and hydrogen isotopes would have been more prototypical but would have been too expensive. Three stainless steel coils filled with kieselguhr were tested; one made from 2.0 inch diameter tubing, one made from 2.0 inch diameter tubing with foam copper embedded in the kieselguhr and one made from 1.25 inch diameter tubing. It was known prior to testing that increasing the tubing diameter from 1.25 inch to 2.0 inch would slow the rate of temperature change. The primary purpose of the testing was to measure to what extent the presence of copper foam in a 2.0" tubing coil would compensate for the effect of larger diameter. Each coil was connected to a pressure gage and the coil was evacuated and backfilled with helium gas. Helium was used instead of a mixture of hydrogen isotopes for reasons of safety. Each coil was quickly immersed in a stirred bath of ethylene glycol at a temperature of approximately 100 degrees Celsius. The coil pressure increased, reflecting the increase in average temperature of its contents. The pressure transient was recored as a function of time after immersion. Because of the actual process will use Pd/k instead of kieselguhr, additional tests were run to determine the differences in thermal properties between the two materials. The method was to position a thermocouple at the center of a hollow sphere and pack the sphere with Pd/k. The sphere was sealed, quickly submerged in a bath of boiling water and the temperature transient was recorded. There sphere was then opened, the Pd/k was replaced with kieselguhr and the transient was repeated. The response was a factor of 1.4 faster for Pd/k than for kieselguhr, implying a thermal diffusivity approximately 40 percent higher than for kieselguhr. Another implication is that the transient tests with the coils would have proceeded faster if the coils had been filled with Pd/k rather than kieselguhr.

  12. EECBG Success Story: Energy Savings, Improved Comfort for West...

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

    HVAC system. | Photo courtesy of Deborah Hammond The Dunn Building in Martinsburg, West Virginia replaced its HVAC system with a new chiller system fan coil units and...

  13. Choosing the right boiler air fans at Weston 4

    SciTech Connect (OSTI)

    Spring, N.

    2009-04-15T23:59:59.000Z

    When it came to choosing the three 'big' boiler air fans - forced draft, induced draft and primary air, the decision revolved around efficiency. The decision making process for fan selection for the Western 4 supercritical coal-fired plant is described in this article. 3 photos.

  14. Heuristics for Balancing Turbine Fans Samir V. Amiouny

    E-Print Network [OSTI]

    Bartholdi III, John J.

    Reiger, 1986. In some cases, such as in the constructionof hydraulic, steam or gas turbines, fan bladesHeuristics for Balancing Turbine Fans Samir V. Amiouny John J. Bartholdi, III John H. Vande Vate April 20, 1997 Abstract We develop heuristics for a problem that models the static balancing of turbine

  15. Method for fabricating fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, R.R.; Cowan, T.E.

    1994-12-27T23:59:59.000Z

    Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figures.

  16. Fan-In Communications On A Cray Gemini Interconnect

    SciTech Connect (OSTI)

    Jones, Terry R [ORNL] [ORNL; Settlemyer, Bradley W [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Using the Cray Gemini interconnect as our platform, we present a study of an important class of communication operations the fan-in communication pattern. By its nature, fan-in communications form hot spots that present significant challenges for any interconnect fabric and communication software stack. Yet despite the inherent challenges, these communication patterns are common in both applications (which often perform reductions and other collective operations that include fan-in communication such as barriers) and system software (where they assume an important role within parallel file systems and other components requiring high-bandwidth or low-latency I/O). Our study determines the effectiveness of differing clientserver fan-in strategies. We describe fan-in performance in terms of aggregate bandwidth in the presence of varying degrees of congestion, as well as several other key attributes. Comparison numbers are presented for the Cray Aries interconnect. Finally, we provide recommended communication strategies based on our findings.

  17. Costs and benefits of energy efficiency improvements in ceiling fans

    SciTech Connect (OSTI)

    Shah, Nihar; Sathaye, Nakul; Phadke, Amol; Letschert, Virginie [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technology Division] [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technology Division

    2013-10-15T23:59:59.000Z

    Ceiling fans contribute significantly to residential electricity consumption, especially in developing countries with warm climates. The paper provides analysis of costs and benefits of several options to improve the efficiency of ceiling fans to assess the global potential for electricity savings and green house gas (GHG) emission reductions. Ceiling fan efficiency can be cost-effectively improved by at least 50% using commercially available technology. If these efficiency improvements are implemented in all ceiling fans sold by 2020, 70 terawatt hours per year could be saved and 25 million metric tons of carbon dioxide equivalent (CO2-e) emissions per year could be avoided, globally. We assess how policies and programs such as standards, labels, and financial incentives can be used to accelerate the adoption of efficient ceiling fans in order to realize potential savings.

  18. Laurentian fan: morphology, sediments, processes, and growth pattern

    SciTech Connect (OSTI)

    Stow, D.A.V.

    1981-03-01T23:59:59.000Z

    Thick sediment accumulations in deep water provide a new target in the search for oil, and require an innovative approach to hydrocarbon exploration. The Laurentian fan is a large, deep-sea (2000 to 5000 m) fan in the western North Atlantic, and has been the major depocenter off Nova Scotia since at least the early Tertiary. The main development of the present depositional and erosional fan morphology in the past 2 to 3 m.y. was closely related to onshore glacial history. The slope above the fan has been the site of rapid sedimentation and consequent slumping. A network of tributaries on the upper fan appears to feed three main channel systens incised up to 800 m between broad asymmetric levees. These channels meander widely across the lower fan, then die out abruptly and pass into a lobate suprafan. Differences between the Laurentian fan and typical fan models result, in part, from the muddy nature of the sediment and the supply system. The channels contain thick, coarse gravels which probably grade distally into sandy lobes. Both should produce good reservoir bodies with suitable source and trapping mechanisms. Fine-grained sediments were more important in fan construction. Interbedded turbidites, contourites, and hemipelagites are present in the late Quaternary-Holocene sequence. The distribution of these sediments and, in particular, the recognition of structural sequences, textural trends, and fabric types in the fine-grained turbidites can be used to characterize particular parts of the fan environment. The development of this approach should prove useful in future hydrocarbon exploration.

  19. Particle trajectories and acceleration during 3D fan reconnection

    E-Print Network [OSTI]

    S. Dalla; P. K. Browning

    2008-11-07T23:59:59.000Z

    Context. The primary energy release in solar flares is almost certainly due to magnetic reconnection, making this a strong candidate as a mechanism for particle acceleration. While particle acceleration in 2D geometries has been widely studied, investigations in 3D are a recent development. Two main classes of reconnection regimes at a 3D magnetic null point have been identified: fan and spine reconnection Aims. Here we investigate particle trajectories and acceleration during reconnection at a 3D null point, using a test particle numerical code, and compare the efficiency of the fan and spine regimes in generating an energetic particle population. Methods. We calculated the time evolution of the energy spectra. We discuss the geometry of particle escape from the two configurations and characterise the trapped and escaped populations. Results. We find that fan reconnection is less efficent than spine reconnection in providing seed particles to the region of strong electric field where acceleration is possible. The establishment of a steady-state spectrum requires approximately double the time in fan reconnection. The steady-state energy spectrum at intermediate energies (protons 1 keV to 0.1 MeV) is comparable in the fan and spine regimes. While in spine reconnection particle escape takes place in two symmetric jets along the spine, in fan reconnection no jets are produced and particles escape in the fan plane, in a ribbon-like structure.

  20. Field study of exhaust fans for mitigating indoor air quality problems: Final report

    SciTech Connect (OSTI)

    Grimsrud, D.T.; Szydlowski, R.F.; Turk, B.H.

    1986-09-01T23:59:59.000Z

    Residential ventilation in the United States housing stock is provided primarily by infiltration, the natural leakage of outdoor air into a building through cracks and holes in the building shell. Since ventilation is the dominant mechanism for control of indoor pollutant concentrations, low infiltration rates caused fluctuation in weather conditions may lead to high indoor pollutant concentrations. Supplemental mechanical ventilation can be used to eliminate these periods of low infiltration. This study examined effects of small continuously-operating exhaust fan on pollutant concentrations and energy use in residences.

  1. Modular Coils and Plasma Configurations for Quasi-axisymmetric Stellarators

    SciTech Connect (OSTI)

    L.P. Ku and A.H. Boozer

    2010-09-10T23:59:59.000Z

    Characteristics of modular coils for quasi-axisymmetric stellarators that are related to the plasma aspect ratio, number of field periods and rotational transform have been examined systematically. It is observed that, for a given plasma aspect ratio, the coil complexity tends to increase with the increased number of field periods. For a given number of field periods, the toroidal excursion of coil winding is reduced as the plasma aspect ratio is increased. It is also clear that the larger the coil-plasma separation is, the more complex the coils become. It is further demonstrated that it is possible to use other types of coils to complement modular coils to improve both the physics and the modular coil characteristics.

  2. Mechanical design of a high field common coil magnet

    SciTech Connect (OSTI)

    Caspi, S.; Chow, K.; Dietderich, D.; Gourlay, S.; Gupta, R.; McInturff, A.; Millos, G.; Scanlan, R.

    1999-03-18T23:59:59.000Z

    A common coil design for high field 2-in-1 accelerator magnets has been previously presented as a 'conductor-friendly' option for high field magnets applicable for a Very Large Hadron Collider. This paper presents the mechanical design for a 14 tesla 2-in-1 dipole based on the common coil design approach. The magnet will use a high current density Nb{sub 3}Sn conductor. The design addresses mechanical issues particular to the common coil geometry: horizontal support against coil edges, vertical preload on coil faces, end loading and support, and coil stresses and strains. The magnet is the second in a series of racetrack coil magnets that will provide experimental verification of the common coil design approach.

  3. aneurysm coiling role: Topics by E-print Network

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

    contract No. DE-AC02-76CH00016. Abstract A common coil design concept for 2-in-1 superconduct- ing Gupta, Ramesh 206 Fluctuations, Dynamics, and the Stretch-Coil Transition of...

  4. axicell insert coils: Topics by E-print Network

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

    contract No. DE-AC02-76CH00016. Abstract A common coil design concept for 2-in-1 superconduct- ing Gupta, Ramesh 162 Fluctuations, Dynamics, and the Stretch-Coil Transition of...

  5. Fallout fans: Negotiations over text integrity in the age of the active audience

    E-Print Network [OSTI]

    Milner, Ryan M.

    2008-07-31T23:59:59.000Z

    of these commentaries on the new economy are using the terms, ?fan,? ?fandom,? or ?fan culture,? yet their models rest on the same social behaviors and emotional commitments that fan scholars have been researching over the past several decades? (Jenkins, 2007, p. 359...), three preeminent fan scholars, declared that we have reached the ?fandom is beautiful? phase of fan studies (p. 3). Such claims about fan influence have also been made by influential fan scholar Henry Jenkins (2006a, 2006b, 2007), indicating a shift...

  6. Artificial Neural Network Portion of Coil Study

    E-Print Network [OSTI]

    Putten, Peter van der

    Artificial Neural Network Portion of Coil Study LTC William M. Crocoll School of Systems TO ARTIFICIAL NEURAL NETWORKS A neural network is a massively parallel system comprised of many highly of the brain (Dayhoff, 1990). A major task for a neural network is to learn and maintain a model of the world

  7. High Efficiency Fans and High Efficiency Electrical Motors

    E-Print Network [OSTI]

    Breedlove, C. W.

    Replacing nominal efficient electrical motors with premium efficiency can save on electrical power costs in cotton gins. Connected horsepower load on industrial air fans is approximately 60% of the total horsepower in a typical cotton gin...

  8. alluvial fan sedimentation: Topics by E-print Network

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

    alluvial fan of the Murray-Darling Basin in (more) Timms, Wendy Amanda 2001-01-01 22 Kinematic wave model of bed profiles in alluvial channels Texas A&M University - TxSpace...

  9. Modeling and ecodesigning crossflow ventilation fans with Mathematica

    E-Print Network [OSTI]

    Argentini, Gianluca

    2010-01-01T23:59:59.000Z

    The efficiency of a simple model of crossflow fan is maximized when the geometry depends on a design parameter. The flow field is numerically computed using a Galerkin method for solving a Poisson partial differential equation.

  10. Minor League Fan Satisfaction with the Season Ticket Selling Process

    E-Print Network [OSTI]

    Reese, Jason D.

    2011-08-08T23:59:59.000Z

    the knowledge of sport marketing. Without their assistance and confidence in me, this study would not have existed. vi TABLE OF CONTENTS Page ABSTRACT... ................................................................................ 1 II REVIEW OF LITERATURE ............................................................... 6 Fan Satisfaction .............................................................................. 6 Marketing Activities...

  11. Final Project Report: Self-Correcting Controls for VAV System Faults Filter/Fan/Coil and VAV Box Sections

    SciTech Connect (OSTI)

    Brambley, Michael R.; Fernandez, Nicholas; Wang, Weimin; Cort, Katherine A.; Cho, Heejin; Ngo, Hung; Goddard, James K.

    2011-05-01T23:59:59.000Z

    This report addresses original research by the Pacific Northwest National Laboratory for the California Institute for Energy and Environment on self-correcting controls for variable-air-volume (VAV) heating, ventilating and air-conditioning systems and focuses specifically on air handling and VAV box components of the air side of the system. A complete set of faults for these components was compiled and a fault mode analysis performed to understand the detectable symptoms of the faults and the chain of causation. A set of 26 algorithms was developed to facilitate the automatic correction of these faults in typical commercial VAV systems. These algorithms include training tests that are used during commissioning to develop models of normal system operation, passive diagnostics used to detect the symptoms of faults, proactive diagnostics used to diagnose the cause of a fault, and finally fault correction algorithms. Ten of the twenty six algorithms were implemented in a prototype software package that interfaces with a test bed facility at PNNL's Richland, WA, laboratory. Measurement bias faults were instigated in the supply-air temperature sensor and the supply-air flow meter to test the algorithms developed. The algorithms as implemented in the laboratory software correctly detected, diagnosed and corrected these faults. Finally, an economic and impact assessment was performed for the State of California for deployment of self-correcting controls. Assuming 15% HVAC energy savings and a modeled deployment profile, 3.1-5.8 TBu of energy savings are possible by year 15.

  12. Polycyclic aromatic hydrocarbon distributions in Mississippi Fan sediments

    E-Print Network [OSTI]

    Sandberg, William Allan

    1986-01-01T23:59:59.000Z

    POLYCYCLIC AROMATIC HYDROCARBON DISTRIBUTIONS IN MISSISSIPPI FAN SEDIMENTS A Thesis by WILLIAM ALLAN SANDBERG Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1986 Major Subject: Oceanography POLYCYCLIC AROMATIC HYDROCARBON DISTRIBUTIONS IN MISSISSIPPI FAN SEDIMENTS A Thesis by WILLIAM ALLAN SANDBERG Approved as to style and content by: James M. Brooks (Chairman of Committee) Leis M...

  13. Signal Prvcessing An AlgebraicMethod for Compensatingfor Coil-Placement Errors in Three-

    E-Print Network [OSTI]

    MacLean, W. James

    ), and then expressing eye position as a function of coil position. The coil position vectors can be used to form a rigid coils used - the first employs a secondary coil in the front coil which is effectively woundSignal Prvcessing An AlgebraicMethod for Compensatingfor Coil-Placement Errors in Three

  14. Dynamic Bowtie for Fan-beam CT

    E-Print Network [OSTI]

    Liu, Fenglin; Cong, Wenxiang; Hsieh, Scott; Pelc, Norbert

    2013-01-01T23:59:59.000Z

    A bowtie is a filter used to shape an x-ray beam and equalize its flux reaching different detector channels. For development of spectral CT with energy-discriminative photon-counting (EDPC) detectors, here we propose and evaluate a dynamic bowtie for performance optimization based on a patient model or a scout scan. Our dynamic bowtie modifies an x-ray beam intensity profile by mechanical rotation and adaptive adjustment of the x-ray source flux. First, a mathematical model for dynamic bowtie filtering is established for an elliptical section in fan-beam geometry, and the contour of the optimal bowtie is derived. Then, numerical simulation is performed to compare the performance of the dynamic bowtie in the cases of an ideal phantom and a realistic cross-section relative to the counterparts without any bowtie and with a fixed bowtie respectively. Our dynamic bowtie can equalize the expected numbers of photons in the case of an ideal phantom. In practical cases, our dynamic bowtie can effectively reduce the dy...

  15. Microhole High-Pressure Jet Drill for Coiled Tubing

    SciTech Connect (OSTI)

    Ken Theimer; Jack Kolle

    2007-06-30T23:59:59.000Z

    Tempress Small Mechanically-Assisted High-Pressure Waterjet Drilling Tool project centered on the development of a downhole intensifier (DHI) to boost the hydraulic pressure available from conventional coiled tubing to the level required for high-pressure jet erosion of rock. We reviewed two techniques for implementing this technology (1) pure high-pressure jet drilling and (2) mechanically-assisted jet drilling. Due to the difficulties associated with modifying a downhole motor for mechanically-assisted jet drilling, it was determined that the pure high-pressure jet drilling tool was the best candidate for development and commercialization. It was also determined that this tool needs to run on commingled nitrogen and water to provide adequate downhole differential pressure and to facilitate controlled pressure drilling and descaling applications in low pressure wells. The resulting Microhole jet drilling bottomhole assembly (BHA) drills a 3.625-inch diameter hole with 2-inch coil tubing. The BHA consists of a self-rotating multi-nozzle drilling head, a high-pressure rotary seal/bearing section, an intensifier and a gas separator. Commingled nitrogen and water are separated into two streams in the gas separator. The water stream is pressurized to 3 times the inlet pressure by the downhole intensifier and discharged through nozzles in the drilling head. The energy in the gas-rich stream is used to power the intensifier. Gas-rich exhaust from the intensifier is conducted to the nozzle head where it is used to shroud the jets, increasing their effective range. The prototype BHA was tested at operational pressures and flows in a test chamber and on the end of conventional coiled tubing in a test well. During instrumented runs at downhole conditions, the BHA developed downhole differential pressures of 74 MPa (11,000 psi, median) and 90 MPa (13,000 psi, peaks). The median output differential pressure was nearly 3 times the input differential pressure available from the coiled tubing. In a chamber test, the BHA delivered up to 50 kW (67 hhp) hydraulic power. The tool drilled uncertified class-G cement samples cast into casing at a rate of 0.04 to 0.17 m/min (8 to 33 ft/hr), within the range projected for this tool but slower than a conventional PDM. While the tool met most of the performance goals, reliability requires further improvement. It will be difficult for this tool, as currently configured, to compete with conventional positive displacement downhole motors for most coil tubing drill applications. Mechanical cutters on the rotating nozzle head would improve cutting. This tool can be easily adapted for well descaling operations. A variant of the Microhole jet drilling gas separator was further developed for use with positive displacement downhole motors (PDM) operating on commingled nitrogen and water. A fit-for-purpose motor gas separator was designed and yard tested within the Microhole program. Four commercial units of that design are currently involved in a 10-well field demonstration with Baker Oil Tools in Wyoming. Initial results indicate that the motor gas separators provide significant benefit.

  16. Field Demonstraton of Existing Microhole Coiled Tubing Rig (MCTR) Technology

    SciTech Connect (OSTI)

    Kent Perry; Samih Batarseh; Sheriff Gowelly; Thomas Hayes

    2006-05-09T23:59:59.000Z

    The performance of an advanced Microhole Coiled Tubing Rig (MCTR) has been measured in the field during the drilling of 25 test wells in the Niobrara formation of Western Kansas and Eastern Colorado. The coiled tubing (CT) rig designed, built and operated by Advanced Drilling Technologies (ADT), was documented in its performance by GTI staff in the course of drilling wells ranging in depth from 500 to nearly 3,000 feet. Access to well sites in the Niobrara for documenting CT rig performance was provided by Rosewood Resources of Arlington, VA. The ADT CT rig was selected for field performance evaluation because it is one of the most advanced commercial CT rig designs that demonstrate a high degree of process integration and ease of set-up and operation. Employing an information collection protocol, data was collected from the ADT CT rig during 25 drilling events that encompassed a wide range of depths and drilling conditions in the Niobrara. Information collected included time-function data, selected parametric information indicating CT rig operational conditions, staffing levels, and field observations of the CT rig in each phase of operation, from rig up to rig down. The data obtained in this field evaluation indicates that the ADT CT rig exhibited excellent performance in the drilling and completion of more than 25 wells in the Niobrara under varied drilling depths and formation conditions. In the majority of the 25 project well drilling events, ROP values ranged between 300 and 620 feet per hour. For all but the lowest 2 wells, ROP values averaged approximately 400 feet per hour, representing an excellent drilling capability. Most wells of depths between 500 and 2,000 feet were drilled at a total functional rig time of less than 16 hours; for wells as deep at 2,500 to 3,000 feet, the total rig time for the CT unit is usually well under one day. About 40-55 percent of the functional rig time is divided evenly between drilling and casing/cementing. The balance of time is divided among the remaining four functions of rig up/rig down, logging, lay down bottomhole assembly, and pick up bottomhole assembly. Observations made during all phases of CT rig operation at each of the project well installations have verified a number of characteristics of the technology that represent advantages that can produce significant savings of 25-35 percent per well. Attributes of the CT rig performance include: (1) Excellent hole quality with hole deviation amounting to 1-2 degrees; (2) Reduced need for auxiliary equipment; (3) Efficient rig mobilization requiring only four trailers; (4) Capability of ''Zero Discharge'' operation; (5) Improved safety; and, (6) Measurement while drilling capability. In addition, commercial cost data indicates that the CT rig reduces drilling costs by 25 to 35% compared to conventional drilling technology. Widespread commercial use of the Microhole Coiled Tubing technology in the United States for onshore Lower-48 drilling has the potential of achieving substantially positive impacts in terms of savings to the industry and resource expansion. Successfully commercialized Microhole CT Rig Technology is projected to achieve cumulative savings in Lower-48 onshore drilling expenditures of approximately 6.8 billion dollars by 2025. The reduced cost of CT microhole drilling is projected to enable the development of gas resources that would not have been economic with conventional methods. Because of the reduced cost of drilling achieved with CT rig technology, it is estimated that an additional 22 Tcf of gas resource will become economic to develop. In the future, the Microhole Coiled Tubing Rig represents an important platform for the continued improvement of drilling that draws on a new generation of various technologies to achieve goals of improved drilling cost and reduced impact to the environment.

  17. Blue fan palm distribution and seed removal patterns in three desert oases of northern Baja California, Mexico

    E-Print Network [OSTI]

    Wehncke, Elisabet V.; López-Medellín, Xavier; Ezcurra, Exequiel

    2010-01-01T23:59:59.000Z

    DOI 10.1007/s11258-009-9682-4 Blue fan palm distribution anddistribution patterns of the blue fan palm, Brahea armata,evaluating (i) the levels of blue fan palm seed removal by

  18. Toroid cavity/coil NMR multi-detector

    DOE Patents [OSTI]

    Gerald, II, Rex E. (Brookfield, IL); Meadows, Alexander D. (Indianapolis, IN); Gregar, Joseph S. (Naperville, IL); Rathke, Jerome W. (Homer Glen, IL)

    2007-09-18T23:59:59.000Z

    An analytical device for rapid, non-invasive nuclear magnetic resonance (NMR) spectroscopy of multiple samples using a single spectrometer is provided. A modified toroid cavity/coil detector (TCD), and methods for conducting the simultaneous acquisition of NMR data for multiple samples including a protocol for testing NMR multi-detectors are provided. One embodiment includes a plurality of LC resonant circuits including spatially separated toroid coil inductors, each toroid coil inductor enveloping its corresponding sample volume, and tuned to resonate at a predefined frequency using a variable capacitor. The toroid coil is formed into a loop, where both ends of the toroid coil are brought into coincidence. Another embodiment includes multiple micro Helmholtz coils arranged on a circular perimeter concentric with a central conductor of the toroid cavity.

  19. Method for manufacturing a rotor having superconducting coils

    DOE Patents [OSTI]

    Driscoll, David I. (South Euclid, OH); Shoykhet, Boris A. (Beachwood, OH)

    2001-01-01T23:59:59.000Z

    A method and apparatus for manufacturing a rotor for use with a rotating machine is provided that employs a superconducting coil on the rotor. An adhesive is applied to an outer surface of the rotor body, which may include a groove disposed within an outer surface of the rotor body. A superconducting coil is then mounted onto the rotor body such that the adhesive bonds the superconducting coil to the rotor body.

  20. Blue fan palm distribution and seed removal patterns in three desert oases of northern Baja California, Mexico

    E-Print Network [OSTI]

    Wehncke, Elisabet V.; López-Medellín, Xavier; Ezcurra, Exequiel

    2010-01-01T23:59:59.000Z

    9682-4 Blue fan palm distribution and seed removal patternsprocesses controlling the distribution patterns of relictrecruitment, and distribution patterns of the blue fan palm,

  1. An Evolutionarily Conserved Family of Virion Tail Needles Related to Bacteriophage P22 gp26: Correlation between Structural Stability and Length of the -Helical Trimeric Coiled Coil

    SciTech Connect (OSTI)

    Bhardwaj, A.; Walker-Kopp, N; Casjens, S; Cingolani, G

    2009-01-01T23:59:59.000Z

    Bacteriophages of the Podoviridae family use short noncontractile tails to inject their genetic material into Gram-negative bacteria. In phage P22, the tail contains a thin needle, encoded by the phage gene 26, which is essential both for stabilization and for ejection of the packaged viral genome. Bioinformatic analysis of the N-terminal domain of gp26 (residues 1-60) led us to identify a family of genes encoding putative homologues of the tail needle gp26. To validate this idea experimentally and to explore their diversity, we cloned the gp26-like gene from phages HK620, Sf6 and HS1, and characterized these gene products in solution. All gp26-like factors contain an elongated {alpha}-helical coiled-coil core consisting of repeating, adjacent trimerization heptads and form trimeric fibers with length ranging between about 240 to 300 {angstrom}. gp26 tail needles display a high level of structural stability in solution, with Tm (temperature of melting) between 85 and 95 C. To determine how the structural stability of these phage fibers correlates with the length of the {alpha}-helical core, we investigated the effect of insertions and deletions in the helical core. In the P22 tail needle, we identified an 85-residue-long helical domain, termed MiCRU (minimal coiled-coil repeat unit), that can be inserted in-frame inside the gp26 helical core, preserving the straight morphology of the fiber. Likewise, we were able to remove three quarters of the helical core of the HS1 tail needle, minimally decreasing the stability of the fiber. We conclude that in the gp26 family of tail needles, structural stability increases nonlinearly with the length of the {alpha}-helical core. Thus, the overall stability of these bacteriophage fibers is not solely dependent on the number of trimerization repeats in the {alpha}-helical core.

  2. Power Aware Page Allocation Alvin R. Lebeck Xiaobo Fan Heng Zeng

    E-Print Network [OSTI]

    Ellis, Carla

    CS 2000 08 Power Aware Page Allocation Alvin R. Lebeck Xiaobo Fan Heng Zeng Carla Ellis Department@cs.duke.edu Xiaobo Fan Dept. of Computer Science Duke University Durham, NC 27708 USA xiaobo@cs.duke.edu Heng Zeng

  3. Income Tax Deduction for Solar-Powered Roof Vents or Fans

    Broader source: Energy.gov [DOE]

    Indiana allows taxpayers to take a deduction on solar-powered roof fans (or vent, also sometimes called an attic fan) installed in a home that the taxpayer owns or leases. The deduction is for 50%...

  4. Laugh out loud in real life : women's humor and fan identity

    E-Print Network [OSTI]

    Klink, Madeline LeNore

    2010-01-01T23:59:59.000Z

    The emerging field of fan studies has, until recently, been defined only by the research that has taken place within it. Almost universally, this research focuses on self-identified fans. However, scholars are beginning ...

  5. Sound Coiled-Tubing Drilling Practices

    SciTech Connect (OSTI)

    Williams, Thomas; Deskins, Greg (Maurer Technology Inc.); Ward, Stephen L. (Advantage Energy Services Ltd); Hightower, Mel

    2001-09-30T23:59:59.000Z

    This Coiled-Tubing Drilling (CTD) Sound Practices Manual provides tools needed by CTD engineers and supervisors to plan, design and perform safe, successful CTD operations. As emphasized throughout, both careful planning and attention to detail are mandatory for success. A bibliography of many useful CTD references is presented in Chapter 6. This manual is organized according to three processes: 1) Pre-Job Planning Process, 2) Operations Execution Process, and 3) Post-Job Review Process. Each is discussed in a logical and sequential format.

  6. Double Coil Condenser Apparatus - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA : Papers69 FederalAdministration Donald6,Double Coil

  7. Structure of a Designed, Right-Handed Coiled-Coil Tetramer Containing All Biological Amino Acids

    SciTech Connect (OSTI)

    Sales, M.; Plecs, J.J.; Holton, J.M.; Alber, T.

    2009-06-04T23:59:59.000Z

    The previous design of an unprecedented family of two-, three-, and four-helical, right-handed coiled coils utilized nonbiological amino acids to efficiently pack spaces in the oligomer cores. Here we show that a stable, right-handed parallel tetrameric coiled coil, called RH4B, can be designed entirely using biological amino acids. The X-ray crystal structure of RH4B was determined to 1.1 {angstrom} resolution using a designed metal binding site to coordinate a single Yb{sup 2+} ion per 33-amino acid polypeptide chain. The resulting experimental phases were particularly accurate, and the experimental electron density map provided an especially clear, unbiased view of the molecule. The RH4B structure closely matched the design, with equivalent core rotamers and an overall root-mean-square deviation for the N-terminal repeat of the tetramer of 0.24 {angstrom}. The clarity and resolution of the electron density map, however, revealed alternate rotamers and structural differences between the three sequence repeats in the molecule. These results suggest that the RH4B structure populates an unanticipated variety of structures.

  8. GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL

    E-Print Network [OSTI]

    Green, M.A.

    2010-01-01T23:59:59.000Z

    FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL M. A. Green,Time Projection Cnamber) thin superconducting solenoid. Theand breakage of the superconductor. The UPA circuit melted

  9. Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid

    E-Print Network [OSTI]

    Maasoumy, Mehdi

    2013-01-01T23:59:59.000Z

    Efficient Building Control Systems, Smart Grid and AircraftCommercial Building HVAC Fan as Ancillary Service for Smart

  10. Energy Conservation Standards for Ceiling Fan Light Kits Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Ceiling Fan Notice of proposed rulemaking (NOPR) and announcement of public meeting.

  11. MICROFABRICATED, ULTRA-DENSE, THREE-DIMENSIONAL METAL COILS F. Herrault1*

    E-Print Network [OSTI]

    to form a three-dimensional coil device. The MEMS- fabricated, ultra-dense coils exhibited a 62% improvement in packing density over conventional wire-wound coils. KEYWORDS Micro-coils, chemical vapor of these microstructures to form a three-dimensional coil device. The polymer material provides electrical insulation

  12. PhD position: Numerical study on ice accretion on fan blades and compressor stages

    E-Print Network [OSTI]

    Twente, Universiteit

    PhD position: Numerical study on ice accretion on fan blades and compressor stages Within on fan blades and compressor stages. This research is carried out in the framework of the HAIC (High a computational tool to predict the ice accretion on fan blades and the first compressor stages of commercial jet

  13. Fan Aerodynamic Performance Guarantees: Do Your Policies, Procedures and Penalties Provide Adequate Certainty?

    E-Print Network [OSTI]

    Kaufman, S. G.; Martin, V.; Falk, M. A.

    2004-01-01T23:59:59.000Z

    With few exceptions, fan vendors do not provide a written guarantee regarding aerodynamic performance. Some fan vendors even go so far as to state in their terms and conditions of sale that fan performance is not guaranteed unless it is specifically...

  14. Boost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply

    E-Print Network [OSTI]

    McNeill, John A.

    enclosure, and reducing the fan supply voltage when maximum cooling is not necessary. Reducing the operatingBoost Converter Provides Temperature-Controlled Operation of 12V Fan from +5V Supply John Mc converter shown in Fig. 1 allows operation of a 12V brushless DC fan from a +5V supply. The circuit is based

  15. The Forming of AISI 409 sheets for fan blade manufacturing

    SciTech Connect (OSTI)

    Foroni, F. D.; Menezes, M. A.; Moreira Filho, L. A. [ITA - Aeronautic Technological Institute, IEM, Praca Mal. Eduardo Gomes, 50 - Vila das Acacias - S. J. Campos, Brasil - CEP 1228-900 (Brazil)

    2007-04-07T23:59:59.000Z

    The necessity of adapting the standardized fan models to conditions of higher temperature has emerged due to the growth of concern referring to the consequences of the gas expelling after the Mont Blanc tunnel accident in Italy and France, where even though, with 100 fans in operation, 41 people died. The objective of this work is to present an alternative to the market standard fans considering a new technology in constructing blades. This new technology introduces the use of the stainless steel AISI 409 due to its good to temperatures of gas exhaust from tunnels in fire situation. The innovation is centered in the process of a deep drawing of metallic sheets in order to keep the ideal aerodynamic superficies for the fan ideal performance. Through the impression of circles on the sheet plane it is shown, experimentally, that, during the pressing process, the more deformed regions on the sheet plane of the blade can not reach the deformation limits of the utilized sheet material.

  16. HIGH-POWER TURBODRILL AND DRILL BIT FOR DRILLING WITH COILED TUBING

    SciTech Connect (OSTI)

    Robert Radtke; David Glowka; Man Mohan Rai; David Conroy; Tim Beaton; Rocky Seale; Joseph Hanna; Smith Neyrfor; Homer Robertson

    2008-03-31T23:59:59.000Z

    Commercial introduction of Microhole Technology to the gas and oil drilling industry requires an effective downhole drive mechanism which operates efficiently at relatively high RPM and low bit weight for delivering efficient power to the special high RPM drill bit for ensuring both high penetration rate and long bit life. This project entails developing and testing a more efficient 2-7/8 in. diameter Turbodrill and a novel 4-1/8 in. diameter drill bit for drilling with coiled tubing. The high-power Turbodrill were developed to deliver efficient power, and the more durable drill bit employed high-temperature cutters that can more effectively drill hard and abrasive rock. This project teams Schlumberger Smith Neyrfor and Smith Bits, and NASA AMES Research Center with Technology International, Inc (TII), to deliver a downhole, hydraulically-driven power unit, matched with a custom drill bit designed to drill 4-1/8 in. boreholes with a purpose-built coiled tubing rig. The U.S. Department of Energy National Energy Technology Laboratory has funded Technology International Inc. Houston, Texas to develop a higher power Turbodrill and drill bit for use in drilling with a coiled tubing unit. This project entails developing and testing an effective downhole drive mechanism and a novel drill bit for drilling 'microholes' with coiled tubing. The new higher power Turbodrill is shorter, delivers power more efficiently, operates at relatively high revolutions per minute, and requires low weight on bit. The more durable thermally stable diamond drill bit employs high-temperature TSP (thermally stable) diamond cutters that can more effectively drill hard and abrasive rock. Expectations are that widespread adoption of microhole technology could spawn a wave of 'infill development' drilling of wells spaced between existing wells, which could tap potentially billions of barrels of bypassed oil at shallow depths in mature producing areas. At the same time, microhole coiled tube drilling offers the opportunity to dramatically cut producers' exploration risk to a level comparable to that of drilling development wells. Together, such efforts hold great promise for economically recovering a sizeable portion of the estimated remaining shallow (less than 5,000 feet subsurface) oil resource in the United States. The DOE estimates this U.S. targeted shallow resource at 218 billion barrels. Furthermore, the smaller 'footprint' of the lightweight rigs utilized for microhole drilling and the accompanying reduced drilling waste disposal volumes offer the bonus of added environmental benefits. DOE analysis shows that microhole technology has the potential to cut exploratory drilling costs by at least a third and to slash development drilling costs in half.

  17. PERFORMANCE OF THE CONDUCTION-COOLED LDX LEVITATION COIL

    E-Print Network [OSTI]

    's (AMSC) Bi-2223 3-ply Narrow Wire. The transverse field component on the L-coil HTS, which is nearly-temperature superconductor (HTS) Bi-2223 for the L- coil minimizes the electrical and cooling power needed for levitation of commercially-available, 150-A HTS leads. An automatically filled liquid- nitrogen reservoir provides cooling

  18. TECHNOLOGY DEVELOPMENT FOR REACT AND WIND COMMON COIL MAGNETS.

    SciTech Connect (OSTI)

    ESCALLIER,J.; ANERELLA,M.; COZZOLINO,J.; GANETIS,G.; GHOSH,A.; GUPTA,R.; HARRISON,M.; MARONE,A.; MURATORE,J.; PARKER,B.; SAMPSON,W.; WANDERER,P.

    2001-06-18T23:59:59.000Z

    High field common coil magnets [1,2] using brittle High Temperature Superconductors (HTS) or Nb{sub 3}Sn cables provide new challenges with respect to the design and manufacturing of coils. We are developing the scaleable techniques that can be used in the production of common coil or other magnets with similar designs [3,4]. By utilizing a cost-effective rapid turnaround short coil program, it is possible to quickly develop and test the new conductors and learn the design and manufacturing concepts needed for them. The flexible nature of a rapid turnaround program required the development of a standard coil cassette for different size cable, allowing coils to be used as building blocks for testing in different magnet configurations. Careful attention is given to the design of the coil structure: The inner bobbin the wire is wound on, the coil winding process, insulation integrity, epoxy vacuum impregnation, and final assembly into a test magnet. This paper will discuss the manufacturing techniques and design rules learned from the rapid turnaround program, and test results to date.

  19. High voltage fault current limiter having immersed phase coils

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2014-04-22T23:59:59.000Z

    A fault current limiter including: a ferromagnetic circuit formed from a ferromagnetic material and including at least a first limb, and a second limb; a saturation mechanism surrounding a limb for magnetically saturating the ferromagnetic material; a phase coil wound around a second limb; a dielectric fluid surrounding the phase coil; a gaseous atmosphere surrounding the saturation mechanism.

  20. Preliminary results of the partial array LCT coil tests

    SciTech Connect (OSTI)

    Luton, J.N.; Cogswell, F.D.; Dresner, L.; Friesinger, G.M.; Gray, W.H.; Iwasa, Y.; Koizumi, K.; Lubell, M.S.; Lue, J.W.; Nishi, M.F.

    1984-09-10T23:59:59.000Z

    The Large Coil Task (LCT) is a collaboration between the US, Euratom, Japan, and Switzerland for the production and testing of 2.5 x 3.5-m bore, superconducting 8-T magnets. The definitive tests in the design configuration, the six coils arrayed in a compact torus, will begin in 1985. Partial-array tests are being done in 1984. In January the initial cooldown of two coils was aborted because of helium-to-vacuum leaks that developed in certain seal welds when the coil temperatures were 170 to 180 K. In July three adjacent coils (designated JA, GD, CH) were cooled and in August two were energized to the limits of the test facility. An overview of the results are presented, including facility, cooldown (warmup has not yet begun), energization, dump, recovery from intentional normal zones, strain, and displacement, for operation up to 100% of design current but below full field and stress. These initial results are highly encouraging.

  1. Transformer current sensor for superconducting magnetic coils

    DOE Patents [OSTI]

    Shen, Stewart S. (Oak Ridge, TN); Wilson, C. Thomas (Norris, TN)

    1988-01-01T23:59:59.000Z

    A transformer current sensor having primary turns carrying a primary current for a superconducting coil and secondary turns only partially arranged within the primary turns. The secondary turns include an active winding disposed within the primary turns and a dummy winding which is not disposed in the primary turns and so does not experience a magnetic field due to a flow of current in the primary turns. The active and dummy windings are wound in opposite directions or connected in series-bucking relationship, and are exposed to the same ambient magnetic field. Voltages which might otherwise develop in the active and dummy windings due to ambient magnetic fields thus cancel out. The resultant voltage is purely indicative of the rate of change of current flowing in the primary turns.

  2. Characterization of Mesoscale Coiled-Coil Peptide-Porphyrin Brian J. Pepe-Mooney, Bashkim Kokona, and Robert Fairman*

    E-Print Network [OSTI]

    Fairman, Robert

    Characterization of Mesoscale Coiled-Coil Peptide-Porphyrin Complexes Brian J. Pepe-Mooney, Bashkim-assemble to form mesoscale filaments and serve as a scaffold for porphyrin interaction. In our earlier work mesoscale fibrils were formed, taking advantage of the types of porphyrin interactions that are present

  3. ISSUANCE 2015-06-25: Energy Conservation Program: Energy Conservation Standards for Ceiling Fan Light Kits, Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Ceiling Fan Light Kits, Notice of Proposed Rulemaking

  4. AC Loss Measurements on a 2G YBCO Coil

    SciTech Connect (OSTI)

    Rey, Christopher M [ORNL] [ORNL; Duckworth, Robert C [ORNL] [ORNL; Schwenterly, S W [ORNL] [ORNL

    2011-01-01T23:59:59.000Z

    The Oak Ridge National Laboratory (ORNL) is collaborating with Waukesha Electric Systems (WES) to continue development of HTS power transformers. For compatibility with the existing power grid, a commercially viable HTS transformer will have to operate at high voltages in the range of 138 kV and above, and will have to withstand 550-kV impulse voltages as well. Second-generation (2G) YBCO coated conductors will be required for an economically-competitive design. In order to adequately size the refrigeration system for these transformers, the ac loss of these HTS coils must be characterized. Electrical AC loss measurements were conducted on a prototype high voltage (HV) coil with co-wound stainless steel at 60 Hz in a liquid nitrogen bath using a lock-in amplifier technique. The prototype HV coil consisted of 26 continuous (without splice) single pancake coils concentrically centered on a stainless steel former. For ac loss measurement purposes, voltage tap pairs were soldered across each set of two single pancake coils so that a total of 13 separate voltage measurements could be made across the entire length of the coil. AC loss measurements were taken as a function of ac excitation current. Results show that the loss is primarily concentrated at the ends of the coil where the operating fraction of critical current is the highest and show a distinct difference in current scaling of the losses between low current and high current regimes.

  5. Manufacturing Development of the NCSX Modular Coil Windings

    SciTech Connect (OSTI)

    Chrzanowsk, J. H.; Fogarty, P. J.; Heitzenroeder, P. J.; Meighan, T.; Nelson, B.; Raftopoulos, S.; Williamson, D.

    2005-09-27T23:59:59.000Z

    The modular coils on the National Compact Stellarator Experiment (NCSX) present a number of significant engineering challenges due to their complex shapes, requirements for high dimensional accuracy and the high current density required in the modular coils due to space constraints. In order to address these challenges, an R&D program was established to develop the conductor, insulation scheme, manufacturing techniques, and procedures. A prototype winding named Twisted Racetrack Coil (TRC) was of particular importance in dealing with these challenges. The TRC included a complex shaped winding form, conductor, insulation scheme, leads and termination, cooling system and coil clamps typical of the modular coil design. Even though the TRC is smaller in size than a modular coil, its similar complex geometry provided invaluable information in developing the final design, metrology techniques and development of manufacturing procedures. In addition a discussion of the development of the copper rope conductor including "Keystoning" concerns; the epoxy impregnation system (VPI) plus the tooling and equipment required to manufacture the modular coils will be presented.

  6. Measurement of current distribution on RF coils using MR imaging

    E-Print Network [OSTI]

    Wu, Yu

    1993-01-01T23:59:59.000Z

    in Appendix A show the structure of these two coils. Coil 1 in Figure A. l is a simple square loop, and coil 3 in Figure A. 3 is a square loop with an inside square conductor which is designed to show the eddy current distribution induced by the outside RF...Hs that the eddy current induced on the inside square conductor is mainly distributed on the edges, but the current distribution on the outside loop is not significantly affected by the eddy current by comparing Figure 2. 4 with Figure 2. 2. Figure 2. 3 and 2. 5...

  7. Microhole Coiled Tubing Bottom Hole Assemblies

    SciTech Connect (OSTI)

    Don Macune

    2008-06-30T23:59:59.000Z

    The original objective of the project, to deliver an integrated 3 1/8-inch diameter Measurement While Drilling (MWD) and Logging While Drilling (LWD) system for drilling small boreholes using coiled tubing drilling, has been achieved. Two prototype systems have been assembled and tested in the lab. One of the systems has been successfully tested downhole in a conventional rotary drilling environment. Development of the 3 1/8-inch system has also lead to development and commercialization of a slightly larger 3.5-inch diameter system. We are presently filling customer orders for the 3.5-inch system while continuing with commercialization of the 3 1/8-inch system. The equipment developed by this project will be offered for sale to multiple service providers around the world, enabling the more rapid expansion of both coiled tubing drilling and conventional small diameter drilling. The project was based on the reuse of existing technology whenever possible in order to minimize development costs, time, and risks. The project was begun initially by Ultima Labs, at the time a small company ({approx}12 employees) which had successfully developed a number of products for larger oil well service companies. In September, 2006, approximately 20 months after inception of the project, Ultima Labs was acquired by Sondex plc, a worldwide manufacturer of downhole instrumentation for cased hole and drilling applications. The acquisition provided access to proven technology for mud pulse telemetry, downhole directional and natural gamma ray measurements, and surface data acquisition and processing, as well as a global sales and support network. The acquisition accelerated commercialization through existing Sondex customers. Customer demand resulted in changes to the product specification to support hotter (150 C) and deeper drilling (20,000 psi pressure) than originally proposed. The Sondex acquisition resulted in some project delays as the resistivity collar was interfaced to a different MWD system and also as the mechanical design was revised for the new pressure requirements. However, the Sondex acquisition has resulted in a more robust system, secure funding for completion of the project, and more rapid commercialization.

  8. Evaluation of Retrofit Variable-Speed Furnace Fan Motors

    SciTech Connect (OSTI)

    Aldrich, R.; Williamson, J.

    2014-01-01T23:59:59.000Z

    In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

  9. Midcontinent well operators learn advantages of coiled-tubing techniques

    SciTech Connect (OSTI)

    Lyle, D.

    1995-07-01T23:59:59.000Z

    From well cleanup to velocity strings to squeeze jobs, more Midcontinent operators are adding coiled-tubing methods to their oilfield techniques. The advantages of these techniques are discussed.

  10. Techniques For Microfabricating Coils For Microelectromechanical Systems Applications

    SciTech Connect (OSTI)

    Woods, R. C. [Louisiana State University, 102A Department of Electrical and Computer Engineering, South Campus Drive, Baton Rouge, LA 70803-5901 (United States); Powell, A. L. [University of Sheffield, Sheffield S10 2TN (United Kingdom)

    2008-01-21T23:59:59.000Z

    The advanced technology necessary for building future space exploration vehicles includes microfabricated coils for making possible self-inductances integrated with other passive and active electronic components. Integrated inductances make possible significant improvements in reliability over the traditional arrangement of using external discrete inductances, as well as allowing significant size (volume) reductions (also important in space vehicles). Two possible fabrication techniques (one using proprietary branded 'Foturan' glass, the other using silicon wafer substrates) for microscopic coils are proposed, using electroplating into channels. The techniques have been evaluated for fabricating the planar electrical coils needed for typical microelectromechanical systems applications. There remain problems associated with processing using 'Foturan' glass, but coil fabrication on silicon wafers was successful. Fabrication methods such as these are expected to play an important part in the development of systems and subsystems for forthcoming space exploration missions.

  11. Small Business Assistance Mechanical Testing of Z-Coil Shoe

    ScienceCinema (OSTI)

    Sandia

    2009-09-01T23:59:59.000Z

    Sandia National Laboratories conducts mechanical testing in 2001 through New Mexico Small Business Assistance Program on shoes developed and patented by Z-Coil Footwear. (SAND2006-2144P)

  12. Modeling and characterization of a voice coil motor

    E-Print Network [OSTI]

    Brown, Ashley (Ashley A.)

    2012-01-01T23:59:59.000Z

    This thesis describes the development of a voice-coil motor that will allow viscous fluids to be delivered via a portable needle-free injection device. The chosen motor design features opposing magnets whose flux is channeled ...

  13. Numerical Analysis of Non-Uniformities and Anisotropy in High-Temperature Superconducting Coils

    E-Print Network [OSTI]

    Hu, Di; Ainslie, Mark D.; Zou, Jin; Cardwell, David A.

    2014-12-12T23:59:59.000Z

    , critical current density (superconductivity), high-temperature superconductors, numerical analysis, superconducting coils, transport ac loss....

  14. JOURNAL OF MAGNETIC RESONANCE 63, 622-628 (1985) An Efficient, Highly Hokogeneous RadiofrequencyCoil

    E-Print Network [OSTI]

    Squire, Larry R.

    1985-01-01T23:59:59.000Z

    of this coil design should be applicable to conventional NMR spectroscopy. The use of a superconducting

  15. NSTX-U Digital Coil Protection System Software Detailed Design

    SciTech Connect (OSTI)

    none,

    2014-06-01T23:59:59.000Z

    The National Spherical Torus Experiment (NSTX) currently uses a collection of analog signal processing solutions for coil protection. Part of the NSTX Upgrade (NSTX-U) entails replacing these analog systems with a software solution running on a conventional computing platform. The new Digital Coil Protection System (DCPS) will replace the old systems entirely, while also providing an extensible framework that allows adding new functionality as desired.

  16. Measurement of current distribution on RF coils using MR imaging 

    E-Print Network [OSTI]

    Wu, Yu

    1993-01-01T23:59:59.000Z

    MEASUREMENT OF CURRENT DISTRIBUTION ON RF COILS USING MR IMAGING A Thesis by YU WU Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1993 Major Subject' Electrical Engineering MEASUREMENT OF CURRENT DISTRIBUTION ON RF COILS USING MR IMAGING A Thesis by YU WU Submitted to Texas ASM University in partial fulfillment of the requirments for the degree of MASTER OF SCIENCE...

  17. NMR of thin layers using a meanderline surface coil

    DOE Patents [OSTI]

    Cowgill, Donald F. (San Ramon, CA)

    2001-01-01T23:59:59.000Z

    A miniature meanderline sensor coil which extends the capabilities of nuclear magnetic resonance (NMR) to provide analysis of thin planar samples and surface layer geometries. The sensor coil allows standard NMR techniques to be used to examine thin planar (or curved) layers, extending NMRs utility to many problems of modern interest. This technique can be used to examine contact layers, non-destructively depth profile into films, or image multiple layers in a 3-dimensional sense. It lends itself to high resolution NMR techniques of magic angle spinning and thus can be used to examine the bonding and electronic structure in layered materials or to observe the chemistry associated with aging coatings. Coupling this sensor coil technology with an arrangement of small magnets will produce a penetrator probe for remote in-situ chemical analysis of groundwater or contaminant sediments. Alternatively, the sensor coil can be further miniaturized to provide sub-micron depth resolution within thin films or to orthoscopically examine living tissue. This thin-layer NMR technique using a stationary meanderline coil in a series-resonant circuit has been demonstrated and it has been determined that the flat meanderline geometry has about he same detection sensitivity as a solenoidal coil, but is specifically tailored to examine planar material layers, while avoiding signals from the bulk.

  18. Air-bridge microcavities Pierre R. Villeneuve, Shanhui Fan, and J. D. Joannopoulos

    E-Print Network [OSTI]

    Fan, Shanhui

    Air-bridge microcavities Pierre R. Villeneuve, Shanhui Fan, and J. D. Joannopoulos Department structures with micron-sized features using semiconductor materials. © 1995 American Institute of Physics

  19. Qualification of Fan Generated Duct Rumble Noise: Part 2: Results (RP 1219)

    E-Print Network [OSTI]

    Kading, J.; Mann, A.; Pate, M.B.

    represented the closest to the ideal configuration. REMOVING TONES In the cases where the sound levels were low, tones enter- ing the sound measurements from the fan and motor vibration were a concern. This issue was remedied by removing the tones from... is not permitted without ASHRAE’s prior written permission. ESL-PA-08-06-09 Published in ASHRAE Transactions Vol. 114, Part 2 36 ASHRAE Transactions 3. Redesign the fan and motor support structure to reduce vibration. 4. Study additional fans and select fans...

  20. Coiled tubing drilling with supercritical carbon dioxide

    DOE Patents [OSTI]

    Kolle , Jack J. (Seattle, WA)

    2002-01-01T23:59:59.000Z

    A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO.sub.2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO.sub.2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC--CO.sub.2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC--CO.sub.2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC--CO.sub.2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC--CO.sub.2 much more effective than water jet erosion. SC--CO.sub.2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the borehole, to ensure that the temperature and pressure conditions necessary for CO.sub.2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO.sub.2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.

  1. Characterization of dynamic change of Fan-delta reservoir properties in water-drive development

    SciTech Connect (OSTI)

    Wu Shenghe; Xiong Qihua; Liu Yuhong [Univ. of Petroleum Changping, Beijing (China)

    1997-08-01T23:59:59.000Z

    Fan-delta reservoir in Huzhuangji oil field of east China, is a typical highly heterogeneous reservoir. The oil field has been developed by water-drive for 10 years, but the oil recovery is less than 12%, and water cut is over 90%, resulting from high heterogeneity and serious dynamic change of reservoir properties. This paper aims at the study of dynamic change of reservoir properties in water-drive development. Through quantitative imaging analysis and mercury injection analysis of cores from inspection wells, the dynamic change of reservoir pore structure in water-drive development was studied. The results show that the {open_quotes}large pore channels{close_quotes} develop in distributary channel sandstone and become larger in water-drive development, resulting in more serious pore heterogeneity. Through reservoir sensitivity experiments, the rock-fluid reaction in water-drive development is studied. The results show the permeability of some distal bar sandstone and deserted channel sandstone becomes lower due to swelling of I/S clay minerals in pore throats. OD the other hand, the permeability of distributary channel and mouth bar sandstone become larger because the authigenic Koalinites in pore throats are flushed away with the increase of flow rate of injection water. Well-logging analysis of flooded reservoirs are used to study the dynamic change of reservoir properties in various flow units. The distribution of remaining oil is closely related to the types and distribution of flow units.

  2. Shanghai Fan Qie Trading Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd JumpInformationScottsOklahoma:SevinShamil AyntraziLTD JumpFan Qie

  3. Photo of the Week: Fan-tastic | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO Overview OCHCO Overview OCHCO OCHCOControlGuide to a BalancedPersonnelFan-tastic Photo of

  4. Fan System Assessment Tool Introduction | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721Energy 3_adv_battery.pdf More Fact Sheet:BetaFederalFall: EnergyFan

  5. Property:Building/SPElectrtyUsePercCirculationFans | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation,Pillar Group BV JumpInformation SPElectrtyUsePercCirculationFans Jump to:

  6. Property:Building/SPElectrtyUsePercFans | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation,Pillar Group BV JumpInformationSPElectrtyUsePercFans Jump to: navigation,

  7. Improving Fan System Performance - A Sourcebook for Industry

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet),EnergyImprovement of the Lost FoamCooling and Improving Fan System

  8. Method and apparatus for making superconductive magnet coils

    DOE Patents [OSTI]

    Borden, A.R.

    1983-11-07T23:59:59.000Z

    A curved, shell-type magnet coil, adapted to be used in a superconducting magnet, is wound by providing a mandrel having a tubular cylindrical mid-portion terminating at both ends in tapered end portions formed with longitudinal slots having flexible fingers therebetween. An elongated electrical conductor is wound around an elongated oval-shaped pole island engaged with the outside of the cylindrical mid-portion, to form a multiplicity of oval-shaped turns engaged with a 180-degree segment of the mandrel. The coil turns have longitudinal portions with curved portions therebetween, engaging the tapered end portions of the mandrel. Upon completion of the winding, tapered expansion members are fully inserted into the tapered end portions, to displace the flexible fingers outwardly into a cylindrical form and to displace the curved portions of the turns into a shape conforming to such cylindrical form while also exerting increased tension upon the turns to minimize draping of the turns and to enhance the mechanical integrity of the coil. A half cylinder clamp may then be employed to clamp the coil, whereupon the coil may be solidified by the use of an epoxy adhesive.

  9. Method and apparatus for making superconductive magnet coils

    DOE Patents [OSTI]

    Borden, Albert R. (El Cerrito, CA)

    1985-01-01T23:59:59.000Z

    A curved, shell-type magnet coil, adapted to be used in a superconducting magnet, is wound by providing a mandrel having a tubular cylindrical mid-portion terminating at both ends in tapered end portions formed with longitudinal slots having flexible fingers therebetween. An elongated electrical conductor is wound around an elongated oval-shaped pole island engaged with the outside of the cylindrical mid-portion, to form a multiplicity of oval-shaped turns engaged with a 180-degree segment of the mandrel. The coil turns have longitudinal portions with curved portions therebetween, engaging the tapered end portions of the mandrel. Upon completion of the winding, tapered expansion members are fully inserted into the tapered end portions, to displace the flexible fingers outwardly into a cylindrical form and to displace the curved portions of the turns into a shape conforming to such cylindrical form while also exerting increased tension upon the turns to minimize draping of the turns and to enhance the mechanical integrity of the coil. A half cylinder clamp may then be employed to clamp the coil, whereupon the coil may be solified by the use of an epoxy adhesive.

  10. Cost effective combined axial fan and throttling valve control of ventilation rate

    E-Print Network [OSTI]

    Sengun, Mehmet Haluk

    Cost effective combined axial fan and throttling valve control of ventilation rate C.J. Taylor 1 P with Proportional-Integral-Plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings ventilation. The new combined fan/valve configuration is compared with a commercially available PID

  11. Effect of Nozzle Geometry on Jet Noise Reduction Using Fan Flow Deflectors

    E-Print Network [OSTI]

    Papamoschou, Dimitri

    or sideforce p = pressure q = dynamic pressure S = wedge wetted area u = mean velocity in jet plume U = nozzleEffect of Nozzle Geometry on Jet Noise Reduction Using Fan Flow Deflectors Dimitri Papamoschou of baseline nozzle shape on the ability of fan flow deflectors to reduce downward-emitted turbulent mixing

  12. The Spacing of Ceiling Fans for Human Comfort in Warm Temperature Conditions

    E-Print Network [OSTI]

    Spain, S.

    1987-01-01T23:59:59.000Z

    THE SPACING OF CEILING FANS FOR HUMAN COMFORT IN WARM TEMPERATURE CONDITIONS Syd Spain, Ph.D. Research Specialist CRS Sirrine, Inc. Houston, Tx ABSTRACT Airspeed tests of a commerci a1 1 y popular 52 in. ceiling fan operating at a low speed...

  13. Inlet swirl distortion effects on the generation and propagation of fan rotor shock noise

    E-Print Network [OSTI]

    Defoe, Jeff (Jeffrey James)

    2011-01-01T23:59:59.000Z

    A body-force-based fan model for the prediction of multiple-pure-tone noise generation is developed in this thesis. The model eliminates the need for a full-wheel, three-dimensional unsteady RANS simulation of the fan blade ...

  14. Field Study of Exhaust Fans for Mitigating Indoor Air Quality Problems: Final Report to Bonneville Power Administration

    E-Print Network [OSTI]

    Grimsrud, David T.

    2009-01-01T23:59:59.000Z

    Measurement Protocol Ventilation System Operation. . . . .Balanced mechanical ventilation systems, employing heatcompared to balanced ventilation systems. (a) exhaust fan

  15. Uniformly wound superconducting coil and method of making same

    DOE Patents [OSTI]

    Mookerjee, S.; Weijun, S.; Yager, B.

    1994-03-08T23:59:59.000Z

    A coil of superconducting wire for a superconducting magnet is described having a relatively dense and uniformly spaced winding to enhance the homogeneity and strength of the magnetic field surrounding the coil and a method of winding the same wherein the mandrel used to wind said coil comprises removable spacers and retainers forming a plurality of outwardly opening slots, each of said slots extending generally about the periphery of the mandrel and being sized to receive and outwardly align and retain successive turns of the superconducting wire within each slot as the wire is wound around and laterally across the mandrel to form a plurality of wire ribbons of a predetermined thickness laterally across the mandrel. 8 figures.

  16. Uniformly wound superconducting coil and method of making same

    DOE Patents [OSTI]

    Mookerjee, Sumit (Cedar Hill, TX); Weijun, Shen (Beijun, CN); Yager, Billy (Waxahachie, TX)

    1994-01-01T23:59:59.000Z

    A coil of superconducting wire for a superconducting magnet having a relaely dense and uniformly spaced winding to enhance the homogeneity and strength of the magnetic field surrounding the coil and a method of winding the same wherein the mandrel used to wind said coil comprises removable spacers and retainers forming a plurality of outwardly opening slots, each of said slots extending generally about the periphery of the mandrel and being sized to receive and outwardly align and retain successive turns of the superconducting wire within each slot as the wire is wound around and laterally across the mandrel to form a plurality of wire ribbons of a predetermined thickness laterally across the mandrel.

  17. Statistic inversion of multi-zone transition probability models for aquifer characterization in alluvial fans

    E-Print Network [OSTI]

    Zhu, Lin; Gong, Huili; Gable, Carl; Teatini, Pietro

    2015-01-01T23:59:59.000Z

    Understanding the heterogeneity arising from the complex architecture of sedimentary sequences in alluvial fans is challenging. This paper develops a statistical inverse framework in a multi-zone transition probability approach for characterizing the heterogeneity in alluvial fans. An analytical solution of the transition probability matrix is used to define the statistical relationships among different hydrofacies and their mean lengths, integral scales, and volumetric proportions. A statistical inversion is conducted to identify the multi-zone transition probability models and estimate the optimal statistical parameters using the modified Gauss-Newton-Levenberg-Marquardt method. The Jacobian matrix is computed by the sensitivity equation method, which results in an accurate inverse solution with quantification of parameter uncertainty. We use the Chaobai River alluvial fan in the Beijing Plain, China, as an example for elucidating the methodology of alluvial fan characterization. The alluvial fan is divided...

  18. A new development in microcomputer software for mine ventilation planning involving the installation of fans

    SciTech Connect (OSTI)

    O'Leary, M.S.J.; McPherson, M.J.

    1989-01-01T23:59:59.000Z

    This paper introduces a computer simulation that extends the use of microcomputer systems for mine ventilation planning. The program was developed as part of an ongoing study to produce a simulation model that would determine the optimum duties of a main fan and a booster fan without requiring the trial-and-error runs that are necessary with currently available programs. To use the new program, the user specifies the location of one main fan and one booster fan, and the minimum required airflows in any number of working places. The computer determines the fan duties that maintains the required airflows at the lowest operating costs without causing undesired recirculation. The methodology of the program and an example showing how it can be applied are presented.

  19. Control coil arrangement for a rotating machine rotor

    DOE Patents [OSTI]

    Shah, Manoj R. (Latham, NY); Lewandowsk, Chad R. (Amsterdam, NY)

    2001-07-31T23:59:59.000Z

    A rotating machine (e.g., a turbine, motor or generator) is provided wherein a fixed solenoid or other coil configuration is disposed adjacent to one or both ends of the active portion of the machine rotor for producing an axially directed flux in the active portion so as to provide planar axial control at single or multiple locations for rotor balance, levitation, centering, torque and thrust action. Permanent magnets can be used to produce an axial bias magnetic field. The rotor can include magnetic disks disposed in opposed, facing relation to the coil configuration.

  20. Ferrite-Cored Solenoidal Induction Coil Sensor for BUD (MM-1667)

    E-Print Network [OSTI]

    Morrison, F.

    2012-01-01T23:59:59.000Z

    following observations: 1) A ferrite-cored solenoidal coilthe same order as L. 2) A ferrite-cored solenoidal coil canstable response. 4) Feedback ferrite-cored solenoidal coils

  1. active in-vessel coils: Topics by E-print Network

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

    contract No. DE-AC02-76CH00016. Abstract A common coil design concept for 2-in-1 superconduct- ing Gupta, Ramesh 139 Fluctuations, Dynamics, and the Stretch-Coil Transition of...

  2. Superconducting coil and method of stress management in a superconducting coil

    DOE Patents [OSTI]

    McIntyre, Peter M. (College Station, TX); Shen, Weijun (Oak Ridge, TN); Diaczenko, Nick (College Station, TX); Gross, Dan A. (College Station, TX)

    1999-01-01T23:59:59.000Z

    A superconducting coil (12) having a plurality of superconducting layers (18) is provided. Each superconducting layer (18) may have at least one superconducting element (20) which produces an operational load. An outer support structure (24) may be disposed outwardly from the plurality of layers (18). A load transfer system (22) may be coupled between at least one of the superconducting elements (20) and the outer support structure (24). The load transfer system (22) may include a support matrix structure (30) operable to transfer the operational load from the superconducting element (20) directly to the outer support structure (24). A shear release layer (40) may be disposed, in part, between the superconducting element (20) and the support matrix structure (30) for relieving a shear stress between the superconducting element (20) and the support matrix structure (30). A compliant layer (42) may also be disposed, in part, between the superconducting element (20) and the support matrix structure (30) for relieving a compressive stress on the superconducting element (20).

  3. Development of a simplified model for cooling and dehumidifying coils

    E-Print Network [OSTI]

    Maldonado, Eliezer

    1997-01-01T23:59:59.000Z

    buildings at Texas excellent in both cases, predicting the thermal resistance of the coils and the return water temperature with an average deviation of 3.5% and 1.2 'F, respectively. Finally, the model is used to develop algorithms to simulate the two most...

  4. TECHNOLOGY DEVELOPMENT FOR REACT AND WIND COMMON COIL MAGNETS

    E-Print Network [OSTI]

    Gupta, Ramesh

    Temperature Superconductors (HTS) or Nb3Sn cables provide new challenges with respect to the design: The inner bobbin the wire is wound on, the coil winding process, insulation integrity, epoxy vacuum application of reacted HTS and Nb3Sn cables. For practical reasons, the rapid turnaround program forces

  5. Electrical and Quench Performance of the First MICE Coupling Coil

    SciTech Connect (OSTI)

    Tartaglia, Michael; Carcagno, Ruben; Makulski, Andrzej; Nogiec, Jerzy; Orris, Darryl; Pilipenko, Roman; Sylvester, Cosmore; Caspi, Shlomo; Pan, Heng; Prestemon, Soren; Virostek, Steve

    2014-11-11T23:59:59.000Z

    The first MICE Coupling Coil has been tested in a conduction-cooled environment in the new Solenoid Test Facility at Fermilab. We present an overview of the power and quench protection scheme, and report on the electrical and quench performance results obtained during cold power tests of the magnet.

  6. Electrical and Quench Performance of the First MICE Coupling Coil

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tartaglia, Michael [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Carcagno, Ruben [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Makulski, Andrzej [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Nogiec, Jerzy [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Orris, Darryl [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Pilipenko, Roman [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Sylvester, Cosmore [Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Caspi, Shlomo [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Pan, Heng [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Prestemon, Soren [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Virostek, Steve [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-06-01T23:59:59.000Z

    The first MICE Coupling Coil has been tested in a conduction-cooled environment in the new Solenoid Test Facility at Fermilab. We present an overview of the power and quench protection scheme, and report on the electrical and quench performance results obtained during cold power tests of the magnet.

  7. SUPERCOMPUTER EDUCATION AND RESEARCH CENTER LIST OF ITEMS FOR DISPOSAL

    E-Print Network [OSTI]

    Govindarajan, Ramaswamy

    Machine 35. Water Chiller Unit 36. Assorted Circuit Boards 37. Various type of Power Supply 38. Keyboards #12;47. 120 TR Chillers 48. Condenser Coil, cabinet, connected MS pipeline 49. Condenser Fan Motors

  8. CleanRooms Magazine, November 2006 Development of a Fan-Filter Unit Test Standard, Laboratory

    E-Print Network [OSTI]

    curves in Figure 1 show the FFU efficiency level as a function of percentile ranking developed from in the graph, e.g., 99 percentile) was as much as over three times of the efficiency level of the least

  9. Standard Methods of Characterizing Performance of Fan Filter Units, Version 3.0

    E-Print Network [OSTI]

    Xu, Tengfang

    2007-01-01T23:59:59.000Z

    Electric power measurement shall include true mean electricThe measurement output of true mean electric power demandof the measurements shall include true mean electric power

  10. An Innovative Method for Dynamic Characterization of Fan Filter Unit Operation.

    E-Print Network [OSTI]

    Xu, Tengfang

    2006-01-01T23:59:59.000Z

    Electric power measurement shall include true mean electricThe measurement output of true mean electric power demandof the measurements shall include true mean electric power

  11. Rf coil design for multi-frequency magnetic resonance imaging & spectroscopy

    E-Print Network [OSTI]

    Dabirzadeh, Arash

    2009-05-15T23:59:59.000Z

    using inductor-capacitor (LC) trap circuits on a 31P coil. The method can be easily applied to other nuclei. The main advantage of this trapping method is the enabling design of second-nuclei coils that are insertable into standard proton coils...

  12. A Wavelet-Based Approximation of Surface Coil Sensitivity Profiles for Correction of Image

    E-Print Network [OSTI]

    A Wavelet-Based Approximation of Surface Coil Sensitivity Profiles for Correction of Image, Cambridge, Massachusetts Abstract: We evaluate a wavelet-based algorithm to estimate the coil sensitivity of the coil sensitivity profile based on the wavelet transform of the original image data was found to provide

  13. WInd-and-react Bi-2212 coil development for accelerator magnets

    E-Print Network [OSTI]

    Godeke, A.

    2011-01-01T23:59:59.000Z

    Figure 2. Coil HTS-SC08 and witness barrels and wires afterO S T Bi-2212 round wire. Coil ID HTS-SC02 HTS-SC04 HTS-SC06with the wires soldered to the barrels. c Coil ID HTS-SC04

  14. ICCM Conference, San Diego, CA July 14-18, 2003 Metallic Coil-Polymer Braid Composites

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    14th ICCM Conference, San Diego, CA July 14-18, 2003 Metallic Coil-Polymer Braid Composites: II properties and chirality effects, entitled "Metallic Coil-Polymer Braid Composites: I. Numerical Modeling of periodic arrays of conductive coils into composite materials. Such designs are analogous to fiber

  15. Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun Edvardas Narevicius,1

    E-Print Network [OSTI]

    Texas at Austin. University of

    Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun, using a series of pulsed electromagnetic coils. A series of coils is fired in a timed sequence to bring in some experiments by interactions with pulsed electric fields Stark decelerator 4­6 , by inter- actions

  16. SPEECH NOISE ESTIMATION USING ENHANCED MINIMA CONTROLLED RECURSIVE Ningping Fan, Justinian Rosca, Radu Balan

    E-Print Network [OSTI]

    Balan, Radu V.

    , Justinian Rosca, Radu Balan Siemens Corporate Research Inc. {Ning.Fan, Justinian.Rosca, Radu.Balan}@siemens speech samples are organized as overlapped frames and each frame is transformed into spectral domain

  17. High-amplitude reflection packets (HARPs) of the Mississippi Fan, Gulf of Mexico

    E-Print Network [OSTI]

    Francis, Jason Michael

    2000-01-01T23:59:59.000Z

    sediment volumes. Mississippi Fan HARP deposition can be described by three depositional models: the "avulsion" model, the "fill and spill" model, and the "transition" model. The "avulsion" depositional model, developed by Flood et al. (1991), describes...

  18. Shut Down Fans, Save $1/4 Million/Yr and Increase Airflow?

    E-Print Network [OSTI]

    Martin, V.; Ohrt, H.

    In 1994, the fume collection system for the Desulphurization Station at Dofasco Inc., Hamilton, Ontario was studied for energy and maintenance optimization. The existing system consisted of two 600 hp fans on a wet scrubber system for two collection...

  19. Performance characteristics of a low pressure cyclone for axial-flow fan exhausts

    E-Print Network [OSTI]

    Simpson, Shay Lynn

    1996-01-01T23:59:59.000Z

    on axial-flow fan exhausts to significantly reduce particulate emissions. Average emission concentrations, cut-point diameters, PMIO emission concentrations, and fractional efficiencies from this cyclone operating at different cyclone inlet velocities...

  20. 2014-10-27 Issuance: Test Procedure for Ceiling Fan Light Kits...

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

    as a means to facilitate the public's access to this document. 2014-10-27 Issuance Test Procedure Ceiling Fan Light Kits NOPR.pdf More Documents & Publications 2014-10-27...

  1. Fan-Speed-Aware Scheduling of Data Intensive Jobs Christine S. Chan

    E-Print Network [OSTI]

    Simunic, Tajana

    of service level agreement (SLA). At the facility level, heating, ventilating and air conditioning (HVAC market servers) additionally over-provision fan subsystems to maintain a low set point. As recently

  2. Processes and Forms of Alluvial Fans Terence C. Blair and John G. McPherson

    E-Print Network [OSTI]

    -central Africa, the Middle East, Iran, Pakistan, India, China, and Mon- golia. The growth of fan research has increased in other arid and semi-arid regions, including in Peru, Argentina, Chile, southern Europe, east

  3. The distribution and composition of organic matter in recent deltaic and submarine fan sediments

    E-Print Network [OSTI]

    DeFreitas, Debra Ann

    1988-01-01T23:59:59.000Z

    THE DISTRIBUTION AND COMPOSITION OF ORGANIC MATTER IN RECFNT DELTAIC AND SUBMARINE FAN SEDIMENTS A Thesis by DEBRA ANN DEFREITAS Submitted to the Graduate College of Texas A&N University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1988 Major Subject: Oceanography THE DISTRIBUTION AND COMPOSITION OF ORGANIC MATTER IN RECENT DELTAIC AND SUBMARINE FAN SEDIMENTS A Thesis by DEBRA ANN DEFREITAS Approved as to style and content by: James M. Bro...

  4. Engine having hydraulic and fan drive systems using a single high pressure pump

    DOE Patents [OSTI]

    Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

    2000-01-01T23:59:59.000Z

    An engine comprises a hydraulic system attached to an engine housing that includes a high pressure pump and a hydraulic fluid flowing through at least one passageway. A fan drive system is also attached to the engine housing and includes a hydraulic motor and a fan which can move air over the engine. The hydraulic motor includes an inlet fluidly connected to the at least one passageway.

  5. Continuous Commissioning® of a Single Fan Dual Duct System in an Office Building

    E-Print Network [OSTI]

    Dong, D.; Liu, M.

    2005-01-01T23:59:59.000Z

    in this case include installing VFD on the supply fan and return fan, updating all terminal boxes from CAV modes into VAV modes, resetting duct static pressure and supply air temperature, optimizing outside air intake and installing VFDs on chiller... are introduced in this paper. The technologies involve dual duct static pressure reset control, outside air intake in the morning, variable chilled water system control, and variable hot water system control. ESL-IC-10/05-15 1 CC ® has been achieving...

  6. Nuclear magnetic resonance apparatus having semitoroidal rf coil for use in topical NMR and NMR imaging

    DOE Patents [OSTI]

    Fukushima, Eiichi (Los Alamos, NM); Roeder, Stephen B. W. (La Mesa, CA); Assink, Roger A. (Albuquerque, NM); Gibson, Atholl A. V. (Bryan, TX)

    1986-01-01T23:59:59.000Z

    An improved nuclear magnetic resonance (NMR) apparatus for use in topical magnetic resonance (TMR) spectroscopy and other remote sensing NMR applications includes a semitoroidal radio-frequency (rf) coil. The semitoroidal rf coil produces an effective alternating magnetic field at a distance from the poles of the coil, so as to enable NMR measurements to be taken from selected regions inside an object, particularly including human and other living subjects. The semitoroidal rf coil is relatively insensitive to magnetic interference from metallic objects located behind the coil, thereby rendering the coil particularly suited for use in both conventional and superconducting NMR magnets. The semitoroidal NMR coil can be constructed so that it emits little or no excess rf electric field associated with the rf magnetic field, thus avoiding adverse effects due to dielectric heating of the sample or to any other interaction of the electric field with the sample.

  7. THE SOURCE OF 3 MINUTE MAGNETOACOUSTIC OSCILLATIONS IN CORONAL FANS

    SciTech Connect (OSTI)

    Jess, D. B.; Mathioudakis, M.; Reardon, K. P.; Keys, P. H.; Keenan, F. P. [Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN (United Kingdom); De Moortel, I. [School of Mathematics and Statistics, University of St Andrews, St Andrews KY16 9SS (United Kingdom); Christian, D. J., E-mail: d.jess@qub.ac.uk [Department of Physics and Astronomy, California State University Northridge, Northridge, CA 91330 (United States)

    2012-10-01T23:59:59.000Z

    We use images of high spatial, spectral, and temporal resolution, obtained using both ground- and space-based instrumentation, to investigate the coupling between wave phenomena observed at numerous heights in the solar atmosphere. Analysis of 4170 A continuum images reveals small-scale umbral intensity enhancements, with diameters {approx}0.''6, lasting in excess of 30 minutes. Intensity oscillations of Almost-Equal-To 3 minutes are observed to encompass these photospheric structures, with power at least three orders of magnitude higher than the surrounding umbra. Simultaneous chromospheric velocity and intensity time series reveal an 87 Degree-Sign {+-} 8 Degree-Sign out-of-phase behavior, implying the presence of standing modes created as a result of partial wave reflection at the transition region boundary. We find a maximum waveguide inclination angle of Almost-Equal-To 40 Degree-Sign between photospheric and chromospheric heights, combined with a radial expansion factor of <76%. An average blueshifted Doppler velocity of Almost-Equal-To 1.5 km s{sup -1}, in addition to a time lag between photospheric and chromospheric oscillatory phenomena, confirms the presence of upwardly propagating slow-mode waves in the lower solar atmosphere. Propagating oscillations in EUV intensity are detected in simultaneous coronal fan structures, with a periodicity of 172 {+-} 17 s and a propagation velocity of 45 {+-} 7 km s{sup -1}. Numerical simulations reveal that the damping of the magnetoacoustic wave trains is dominated by thermal conduction. The coronal fans are seen to anchor into the photosphere in locations where large-amplitude umbral dot (UD) oscillations manifest. Derived kinetic temperature and emission measure time series display prominent out-of-phase characteristics, and when combined with the previously established sub-sonic wave speeds, we conclude that the observed EUV waves are the coronal counterparts of the upwardly propagating magnetoacoustic slow modes detected in the lower solar atmosphere. Thus, for the first time, we reveal how the propagation of 3 minute magnetoacoustic waves in solar coronal structures is a direct result of amplitude enhancements occurring in photospheric UDs.

  8. DESIGN OF THE ITER IN-VESSEL COILS

    SciTech Connect (OSTI)

    Neumeyer, C; Bryant, L; Chrzanowski, J; Feder, R; Gomez, M; Heitzenroeder, P; Kalish, M; Lipski, A; Mardenfeld, M; Simmons, R; Titus, P; Zatz, I; Daly, E; Martin, A; Nakahira, M; Pillsbury, R; Feng, J; Bohm, T; Sawan, M; Stone, H; Griffiths, I

    2010-11-27T23:59:59.000Z

    The ITER project is considering the inclusion of two sets of in-vessel coils, one to mitigate the effect of Edge Localized Modes (ELMs) and another to provide vertical stabilization (VS). The in-vessel location (behind the blanket shield modules, mounted to the vacuum vessel inner wall) presents special challenges in terms of nuclear radiation (~3000 MGy) and temperature (100oC vessel during operations, 200oC during bakeout). Mineral insulated conductors are well suited to this environment but are not commercially available in the large cross section required. An R&D program is underway to demonstrate the production of mineral insulated (MgO or Spinel) hollow copper conductor with stainless steel jacketing needed for these coils. A preliminary design based on this conductor technology has been developed and is presented herein.

  9. Study of HTS Insert Coils for High Field Solenoids

    SciTech Connect (OSTI)

    Lombardo, Vito; /Fermilab

    2009-09-01T23:59:59.000Z

    Fermilab is currently working on the development of high field magnet systems for ionization cooling of muon beams. The use of high temperature superconducting materials (HTS) is being considered for these solenoids using Helium refrigeration. Several studies have been performed on insert coils made of BSCCO-2223 tapes and second generation (2G) YBCO coated conductors, which are tested at various temperatures and at external fields of up to 14 T. Critical current (I{sub c}) measurements of YBCO short samples are presented as a function of bending stress, magnetic field and field orientation with respect to the sample surface. An analytical fit of critical current data as a function of field and field orientation is also presented. Results from several single-layer and double-layer pancake coils are also discussed.

  10. Thermal Storage for Energy Efficient Structures (Poteet High School Case Study)

    E-Print Network [OSTI]

    Utesch, A. L.

    1988-01-01T23:59:59.000Z

    and cooling valves in sequence for temperature control. Ventilation air dampers and control valves close when units are de-energized. I. DDC CONTROL SYSTEM Controls equipment, provides system operation information, generates historical data files... with air units or fan and coil units with hot and chilled water coils. Whenever occupancy is sensed the lights and HVAC equipment are energized and automatically oontrolled by sequencing coil valves to maintain the temperature setting. The thermal...

  11. Measurement of axial injection displacement with trim coil current unbalance

    SciTech Connect (OSTI)

    Covo, Michel Kireeff, E-mail: mkireeffcovo@lbl.gov [Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (United States)

    2014-08-15T23:59:59.000Z

    The Dee probe used for measuring internal radial beam intensity shows large losses inside the radius of 20 cm of the 88 in. cyclotron. The current of the top and bottom innermost trim coil 1 is unbalanced to study effects of the axial injection displacement. A beam profile monitor images the ion beam bunches, turn by turn. The experimental bunch center of mass position is compared with calculations of the magnetic mirror effect displacement and shows good agreement.

  12. Quantum Addition Circuits and Unbounded Fan-Out

    E-Print Network [OSTI]

    Yasuhiro Takahashi; Seiichiro Tani; Noboru Kunihiro

    2009-10-14T23:59:59.000Z

    We first show how to construct an O(n)-depth O(n)-size quantum circuit for addition of two n-bit binary numbers with no ancillary qubits. The exact size is 7n-6, which is smaller than that of any other quantum circuit ever constructed for addition with no ancillary qubits. Using the circuit, we then propose a method for constructing an O(d(n))-depth O(n)-size quantum circuit for addition with O(n/d(n)) ancillary qubits for any d(n)=\\Omega(log n). If we are allowed to use unbounded fan-out gates with length O(n^c) for an arbitrary small positive constant c, we can modify the method and construct an O(e(n))-depth O(n)-size circuit with o(n) ancillary qubits for any e(n)=\\Omega(log* n). In particular, these methods yield efficient circuits with depth O(log n) and with depth O(log* n), respectively. We apply our circuits to constructing efficient quantum circuits for Shor's discrete logarithm algorithm.

  13. United States

    Office of Legacy Management (LM)

    - I United States Department of Energy D lSCk Al M E R "This book was prepared as an account of work sponsored by an agency of the United States Government. Neither the United...

  14. Abstract--The charging coil (C-coil) for the joint Columbia University/MIT Levitated Dipole Experiment (LDX) is under

    E-Print Network [OSTI]

    1 Abstract--The charging coil (C-coil) for the joint Columbia University/MIT Levitated Dipole) is a new, innovative magnetic confinement fusion experiment being designed, jointly by Columbia University@psfc.mit.edu). D. Garnier is with Columbia University, presently at MIT PSFC, Cambridge, MA 02139, USA (e

  15. Identification of bZIP interaction partners of viral proteins HBZ, MEQ, BZLF1, and K-bZIP using coiled-coil arrays

    E-Print Network [OSTI]

    Reinke, Aaron Wade

    Basic-region leucine-zipper transcription factors (bZIPs) contain a segment rich in basic amino acids that can bind DNA, followed by a leucine zipper that can interact with other leucine zippers to form coiled-coil homo- ...

  16. Printed in the United States of America. Available from National Technical Information Service

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    #12;Printed in the United States of America. Available from National Technical Information Service ......................... 20 4.3 Map-Based Compressor Model ........................... 23 4.4 Loss and Efficiency Performance ........................... 56 6.6 Fan Motor and Compressor Shell Heat Losses ........... 64 7

  17. The Calculated and Measured Resistance for Splices between Conductors in a MICE Superconducting Coil

    SciTech Connect (OSTI)

    Green, Michael A.; Dietderich, Dan; Higley, Hugh; Pan, Heng; Tam, Darren; Trillaud, Federic; Wang, Li; Wu, Hong; Xu, Feng Yu

    2009-03-19T23:59:59.000Z

    The resistance of superconducting joints within MICE coils is an important issue particularly for the coupling coils. The MICE tracker solenoids have only two superconducting joints in the three spectrometer set (end coil 1, the center coil and end coil 2). The AFC magnets may have only a single joint within the coil. The coupling coils may have as many as fifteen joints within the coil, due to relatively short piece lengths of the superconductor. LBNL and ICST looked at three types of coil joints. They are: (1) cold fusion butt joints, (2) side-by-side lap joints, and (3) up-down lap joints. A theoretical calculation of the joint resistance was done at LBNL and checked by ICST. After looking at the theoretical resistance of the three types of joints, it was decided that the cold welded butt joint was not an attractive alternative for joints within a MICE superconducting magnet coil. Side-by-side and up-down lap joints were fabricated at ICST using two types of soft solder between the conductors. These conductor joints were tested at LBNL at liquid helium temperatures over a range of magnetic fields. The joint resistance was compared with the theoretical calculations. Measurements of splice strength were also made at 300 K and 77 K.

  18. LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BNL

    SciTech Connect (OSTI)

    P.C. Weaver

    2010-10-22T23:59:59.000Z

    5098-LR-01-0 -LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BROOKHAVEN NATIONAL LABORATORY

  19. Operational control and maintenance integrity of typical and atypical coil tube steam generating systems

    SciTech Connect (OSTI)

    Beardwood, E.S.

    1999-07-01T23:59:59.000Z

    Coil tube steam generators are low water volume to boiler horsepower (bhp) rating, rapid steaming units which occupy substantially less space per boiler horsepower than equivalent conventional tire tube and water tube boilers. These units can be retrofitted into existing steam systems with relative ease and are more efficient than the generators they replace. During the early 1970's they became a popular choice for steam generation in commercial, institutional and light to medium industrial applications. Although these boiler designs do not require skilled or certified operators, an appreciation for a number of the operational conditions that result in lower unscheduled maintenance, increased reliability and availability cycles would be beneficial to facility owners, managers, and operators. Conditions which afford lower operating and maintenance costs will be discussed from a practical point of view. An overview of boiler design and operation is also included. Pitfalls are provided for operational and idle conditions. Water treatment application, as well as steam system operations not conducive to maintaining long term system integrity; with resolutions, will be addressed.

  20. Ferrite-Cored Solenoidal Induction Coil Sensor for BUD (MM-1667)

    SciTech Connect (OSTI)

    Morrison, F.; Becker, A.; Conti, U.; Gasperikova, E.

    2011-06-15T23:59:59.000Z

    We have designed and lab tested a new ferrite cored induction coil sensor for measuring the secondary fields from metallic UXO with the BUD system. The objective was to replace the 5-inch diameter air-cored coils in the BUD system with smaller sensors that would allow the placement of multiple sensors in the smaller package of the new BUD hand-held system. A ferrite-cored solenoidal coil of length L can easily be made to have sensitivity and noise level roughly the same as an air-cored coil of a diameter on the same order as L. A ferrite-cored solenoidal coil can easily have a feedback configuration to achieve critical damping. The feedback configuration leads to a very stable response. Feedback ferrite-cored solenoidal coils show very little interaction as long as they are separated by one half their length.

  1. Advanced Mud System for Microhole Coiled Tubing Drilling

    SciTech Connect (OSTI)

    Kenneth Oglesby

    2008-12-01T23:59:59.000Z

    An advanced mud system was designed and key components were built that augment a coiled tubing drilling (CTD) rig that is designed specifically to drill microholes (less than 4-inch diameter) with advanced drilling techniques. The mud system was tailored to the hydraulics of the hole geometries and rig characteristics required for microholes and is capable of mixing and circulating mud and removing solids while being self contained and having zero discharge capability. Key components of this system are two modified triplex mud pumps (High Pressure Slurry Pumps) for advanced Abrasive Slurry Jetting (ASJ) and a modified Gas-Liquid-Solid (GLS) Separator for well control, flow return and initial processing. The system developed also includes an additional component of an advanced version of ASJ which allows cutting through most all materials encountered in oil and gas wells including steel, cement, and all rock types. It includes new fluids and new ASJ nozzles. The jetting mechanism does not require rotation of the bottom hole assembly or drill string, which is essential for use with Coiled Tubing (CT). It also has low reactive forces acting on the CT and generates cuttings small enough to be easily cleaned from the well bore, which is important in horizontal drilling. These cutting and mud processing components and capabilities compliment the concepts put forth by DOE for microhole coiled tubing drilling (MHTCTD) and should help insure the reality of drilling small diameter holes quickly and inexpensively with a minimal environmental footprint and that is efficient, compact and portable. Other components (site liners, sump and transfer pumps, stacked shakers, filter membranes, etc.. ) of the overall mud system were identified as readily available in industry and will not be purchased until we are ready to drill a specific well.

  2. Clamp for use in winding large magnet coils

    DOE Patents [OSTI]

    Brown, Robert L. (Kingston, TN); Kenney, Walter J. (Clinton, TN)

    1983-01-01T23:59:59.000Z

    In one aspect, the invention is a novel arrangement for applying forces to urns of a vertically extending helical coil which is wound about a support. The apparatus includes a first rigid member extending towards the turns. A second rigid member extends transversely from the end of the first and has a vertically extending face provided with a generally straight groove extending transversely of the turns. A longitudinal passage in the first member connects to the groove to form therewith a continuous guideway for rollable articles. A rigid lug longitudinally movable in the groove is provided with a projection which extends out of the groove and beneath the bottom of a selected turn of the coil. A train of rigid, rollable articles is disposed in the guideway inwardly of the lug. Means are provided for applying force to that end of the train which is relatively remote from the lug, to urge the latter against the bottom face of the selected turn. As a result, that turn is moved upward along the face of the support, establishing a selected spacing between that turn and the previously formed turn of the coil. When upward movement of the selected turn stops, the force applied to the lug immediately translates to a force which urges the above-mentioned grooved face against all of the formed turns, thus compressing them against the support. The above-mentioned first and second members are swingably mounted so that they can be temporarily moved out of the winding path, thus permitting continuous winding.

  3. Clamp for use in winding large magnet coils

    DOE Patents [OSTI]

    Brown, R.L.; Kenney, W.J.

    1981-05-05T23:59:59.000Z

    In one aspect, the invention is a novel arrangement for applying forces to turns of a vertically extending helical coil which is wound about a support. The apparatus includes a first rigid member extending towards the turns. A second rigid member extends transversely from the end of the first and has a vertically extending face provided with a generally straight groove extending transversely of the turns. A longitudinal passage in the first member connects to the groove to form therewith a continuous guideway for rollable articles. A rigid lug longitudinally movable in the groove is provided with a projection which extends out of the groove and beneath the bottom of a selected turn of the coil. A train of rigid, rollable articles is disposed in the guideway inwardly of the lug. Means are provided for applying force to that end of the train which is relatively remote from the lug, to urge the latter against the bottom face of the selected turn. As a result, that turn is moved upward along the face of the support, establishing a selected spacing between that turn and the previously formed turn of the coil. When upward movement of the selected turn stops, the force applied to the lug immediately translates to a force which urges the above-mentioned grooved face against all of the formed turns, thus compressing them against the support. The above-mentioned first and second members are swingably mounted so that they can be temporarily moved out of the winding path, thus permitting continuous winding.

  4. Insulation and Heat Treatment of Bi-2212 Wire for Wind-and-React Coils

    SciTech Connect (OSTI)

    Peter K. F. Hwang

    2007-10-22T23:59:59.000Z

    Higher Field Magnets demand higher field materials such as Bi-2212 round superconducting wire. The Bi-2212 wire manufacture process depends on the coil fabrication method and wire insulation material. Considering the wind-and-react method, the coil must unifirmly heated to the melt temperature and uniformly cooled to the solidification temperature. During heat treat cycle for tightly wound coils, the leakage melt from conductor can chemically react with insulation on the conductor and creat short turns in the coils. In this research project, conductor, insulation, and coils are made to systemically study the suitable insulation materials, coil fabrication method, and heat treatment cycles. In this phase I study, 800 meters Bi-2212 wire with 3 different insulation materials have been produced. Best insulation material has been identified after testing six small coils for insulation integrity and critical current at 4.2 K. Four larger coils (2" dia) have been also made with Bi-2212 wrapped with best insulation and with different heattreatment cycle. These coils were tested for Ic in a 6T background field and at 4.2 K. The test result shows that Ic from 4 coils are very close to short samples (1 meter) result. It demonstrates that HTS coils can be made with Bi-2212 wire with best insulation consistently. Better wire insulation, improving coil winding technique, and wire manufacture process can be used for a wide range of high field magnet application including acclerators such as Muon Collider, fusion energy research, NMR spectroscopy, MRI, and other industrial magnets.

  5. Decoupled Modeling of Chilled Water Cooling Coils Using a Finite Element Method

    E-Print Network [OSTI]

    Wang, G.; Liu, M.

    2005-01-01T23:59:59.000Z

    Decoupled Modeling of Chilled Water Cooling Coils Using a Finite Element Method Gang Wang Research Associate University of Nebraska – Lincoln Mingsheng Liu Professor University of Nebraska – Lincoln David E. Claridge Professor Texas A... be decoupled using a constant sensible heat ratio (SHR) and the saturation humidity ratio vs. temperature curve can be treated as linear in a small area corresponding to a finite element of the coil. This paper presents the decoupled cooling coil model...

  6. Superconducting FCL using a combined inducted magnetic field trigger and shunt coil

    DOE Patents [OSTI]

    Tekletsadik, Kasegn D. (Rexford, NY)

    2007-10-16T23:59:59.000Z

    A single trigger/shunt coil is utilized for combined induced magnetic field triggering and shunt impedance. The single coil connected in parallel with the high temperature superconducting element, is designed to generate a circulating current in the parallel circuit during normal operation to aid triggering the high temperature superconducting element to quench in the event of a fault. The circulating current is generated by an induced voltage in the coil, when the system current flows through the high temperature superconducting element.

  7. Graphene-coated coupling coil for AC resistance reduction

    DOE Patents [OSTI]

    Miller, John M

    2014-03-04T23:59:59.000Z

    At least one graphene layer is formed to laterally surround a tube so that the basal plane of each graphene layer is tangential to the local surface of the tube on which the graphene layer is formed. An electrically conductive path is provided around the tube for providing high conductivity electrical path provided by the basal plane of each graphene layer. The high conductivity path can be employed for high frequency applications such as coupling coils for wireless power transmission to overcome skin depth effects and proximity effects prevalent in high frequency alternating current paths.

  8. Advanced Mud System for Microhole Coiled Tubing Drilling | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1AMEE Jump to:Ohio:Ads-tec GmbH JumpEnergyInformation Coiled

  9. Effects of Slip Planes on Stresses in MICE Coupling Solenoid Coil Assembly

    E-Print Network [OSTI]

    Wang, Li

    2010-01-01T23:59:59.000Z

    quench resulting from crack of epoxy resin inside the coilanalysis, cause fracture of epoxy resin in the coil windinginsulations, Stycast epoxy resin, and copper stabilized NbTi

  10. Micro-coil detection of Nuclear Magnetic Resonance for nanofluidic samples

    E-Print Network [OSTI]

    Shibahara, Aya; Lusher, Chris; Saunders, John; Aßmann, Cornelia; Schurig, Thomas; Drung, Dietmar

    2013-01-01T23:59:59.000Z

    We have developed a novel dc SQUID system with a micro-coil input circuit to act as a local probe of quantum matter and nanosystems. The planar niobium micro-coil pickup loop is located remotely from the SQUID, coupled through a superconducting twisted pair, enabling the sample to be at microkelvin temperatures. A high degree of coupling between the coil and the region of interest of similar dimensions (up to ~ 100 microns) can be achieved. We report nuclear magnetic resonance (NMR) measurements to characterise the sensitivity of these coils to 3He in the gas phase at 4.2 K in a 30 mT magnetic field.

  11. Managing Coil Epoxy Vacuum Impregnation Systems at the Manufacturing Floor Level To Achieve Ultimate Properties in State-of-the-Art Magnet Assemblies

    SciTech Connect (OSTI)

    J.G. Hubrig; G.H. Biallas

    2005-05-01T23:59:59.000Z

    Liquid epoxy resin impregnation systems remain a state-of-the-art polymer material for vacuum and vacuum/pressure impregnation applications in the manufacture of both advanced and conventional coil winding configurations. Epoxy resins inherent latitude in processing parameters accounts for their continued popularity in engineering applications, but also for the tendency to overlook or misinterpret the requisite processing parameters on the manufacturing floor. Resin system impregnation must be managed in detail in order to achieve device life cycle reliability. This closer look reveals how manufacturing floor level management of material acceptance, handling and storage, pre- and post- impregnation processing and cure can be built into a manufacturing plan to increase manufacturing yield, lower unit cost and ensure optimum life cycle performance of the coil.

  12. Ceramic electrical insulation for electrical coils, transformers, and magnets

    DOE Patents [OSTI]

    Rice, John A. (Longmont, CO); Hazelton, Craig S. (Lafayette, CO); Fabian, Paul E. (Broomfield, CO)

    2002-01-01T23:59:59.000Z

    A high temperature electrical insulation is described, which is suitable for electrical windings for any number of applications. The inventive insulation comprises a cured preceramic polymer resin, which is preferably a polysiloxane resin. A method for insulating electrical windings, which are intended for use in high temperature environments, such as superconductors and the like, advantageously comprises the steps of, first, applying a preceramic polymer layer to a conductor core, to function as an insulation layer, and second, curing the preceramic polymer layer. The conductor core preferably comprises a metallic wire, which may be wound into a coil. In the preferred method, the applying step comprises a step of wrapping the conductor core with a sleeve or tape of glass or ceramic fabric which has been impregnated by a preceramic polymer resin. The inventive insulation system allows conducting coils and magnets to be fabricated using existing processing equipment, and maximizes the mechanical and thermal performance at both elevated and cryogenic temperatures. It also permits co-processing of the wire and the insulation to increase production efficiencies and reduce overall costs, while still remarkably enhancing performance.

  13. Recomplete deep hot wells successfully with coiled tubing

    SciTech Connect (OSTI)

    Garner, T.; Fleckenstein, W. [Bechtel Petroleum Operations, Tupman, CA (United States); Shelley, B. [Halliburton Energy Services, Bakersfield, CA (United States)

    1995-06-01T23:59:59.000Z

    A squeeze reperforation procedure in the Elk Hills, California field using coiled tubing included contaminating excess cement and jetting it from the well bore to eliminate the need to drill out cement before shooting new perforations. The 324-7R well was producing 260 b/d of oil through 2 7/8-in. production tubing, with a 20,000-scf/bbl gas-oil ratio (GOR). Bottomhole static temperature was 250 F. After pumping a cement squeeze to 9,000 ft trough 1{1/2}-in. coiled tubing (CT) run inside the production tubing, oil production increased to 550 b/d of oil, and the GOR decreased to 5,000 scf/bbl when new perforations were shot. Cement was pumped 9,000 ft through the CT and circulated back through the production tubing/CT annulus. Operation cost was estimated at 20% less than for a comparable job performance with conventional tubing. Cost of the CT squeeze was recovered by 58 days incremental production.

  14. Monolithically integrated Helmholtz coils by 3-dimensional printing

    SciTech Connect (OSTI)

    Li, Longguang [Department of Electrical Engineering, University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240 (China); Abedini-Nassab, Roozbeh; Yellen, Benjamin B., E-mail: yellen@duke.edu [Department of Electrical Engineering, University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240 (China); Department of Mechanical Engineering and Materials Science, Duke University, P.O. Box 90300, Hudson Hall, Durham, North Carolina 27708 (United States)

    2014-06-23T23:59:59.000Z

    3D printing technology is of great interest for the monolithic fabrication of integrated systems; however, it is a challenge to introduce metallic components into 3D printed molds to enable broader device functionality. Here, we develop a technique for constructing a multi-axial Helmholtz coil by injecting a eutectic liquid metal Gallium Indium alloy (EGaIn) into helically shaped orthogonal cavities constructed in a 3D printed block. The tri-axial solenoids each carry up to 3.6?A of electrical current and produce magnetic field up to 70?G. Within the central section of the coil, the field variation is less than 1% and is in agreement with theory. The flow rates and critical pressures required to fill the 3D cavities with liquid metal also agree with theoretical predictions and provide scaling trends for filling the 3D printed parts. These monolithically integrated solenoids may find future applications in electronic cell culture platforms, atomic traps, and miniaturized chemical analysis systems based on nuclear magnetic resonance.

  15. UNIT NUMBER:

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

    193 UNIT NUMBER: 197 UNIT NAME: CONCRETE RUBBLE PILE (30) REGULATORY STATUS: AOC LOCATION: Outside plant security fence, north of the plant on Big Bayou Creek on private property....

  16. Note: High turn density magnetic coils with improved low pressure water cooling for use in atom optics

    SciTech Connect (OSTI)

    McKay Parry, Nicholas, E-mail: n.mckayparry@uq.net.au; Neely, Tyler; Carey, Thomas; Bell, Thomas; Rubinsztein-Dunlop, Halina [School of Mathematics and Physics, University of Queensland, St Lucia 4072 (Australia); ARC Centre of Excellence for Engineered Quantum Systems, University of Queensland, St Lucia 4072 (Australia); Baker, Mark [School of Mathematics and Physics, University of Queensland, St Lucia 4072 (Australia)

    2014-08-15T23:59:59.000Z

    We describe a magnetic coil design utilizing concentrically wound electro-magnetic insulating (EMI) foil (25.4 ?m Kapton backing and 127 ?m thick layers). The magnetic coils are easily configurable for different coil sizes, while providing large surfaces for low-pressure (0.12 bar) water cooling. The coils have turn densities of ?5 mm{sup ?1} and achieve a maximum of 377 G at 2.1 kW driving power, measured at a distance 37.9 mm from the axial center of the coil. The coils achieve a steady-state temperature increase of 36.7°C/kW.

  17. Qualification of Fan Generated Duct Rumble Noise: Part 1: Test Facility(RP 1219)

    E-Print Network [OSTI]

    Kading, J.; Mann, A.; Pate, M.B.

    the transition duct from break in noise from the fan room. The fiberglass insulation on the inside of the box was suspended against the MDF in order to limit any vibration damping that might occur if the insula- tion touched the duct. The duct work continued... mounted to a base. The mounting base was a double steel strut that held the fan and motor assemble together. The mounting base had six vibration isolation springs that it supported by. The four corner springs were 800 lb, 1” isolation springs, the middle...

  18. A study of the effect of tip clearance on propeller fan performance

    E-Print Network [OSTI]

    Alam, Md. Shamsul

    1959-01-01T23:59:59.000Z

    Coefficient VI, Xf feet of Tip Clearance on Static Pressure for Given Capacity Coefficients 61 FIGURES Figure Title 1. Two Dimensional Flow through Airfoil Blade Grid 2. Velocity Diagram for an Axial Flow Fan 3. Single Stage Axial Flow Won... RIIOCR~CZi~ I OOB0 1. 0oOO I 57 possible clearance depending upon the flow conditions. Recently, Spencer hss investigated the effect of tip clearance on the performance of an axial flow pump. The findings of this thesis for axial fan confirm his...

  19. A combined mode fatigue model for glass reinforced nylon as applied to molded engine cooling fans

    SciTech Connect (OSTI)

    Smith, J.D.; Bennet, M.L.

    1985-01-01T23:59:59.000Z

    The use of glass reinforced nylon in fatigue inducing environments calls for a new method of stress analysis. With an engine cooling fan, both mean and vibratory stresses need to be examined. Speed cycling can cause tensile fatigue, while vibration can cause flexural fatigue. Since tensile and flexural stresses exist in the fan simultaneously, a combined mode fatigue model is needed. The proposed model is based on high cycle flexural and tensile fatigue strengths, and tensile strength. It relates measurable strain to stress using temperature dependent flexural and tensile moduli, and treats underhood temperature and desired product life as variables.

  20. Apparatus and method for reducing inductive coupling between levitation and drive coils within a magnetic propulsion system

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    2001-01-01T23:59:59.000Z

    An apparatus and method is disclosed for reducing inductive coupling between levitation and drive coils within a magnetic levitation system. A pole array has a magnetic field. A levitation coil is positioned so that in response to motion of the magnetic field of the pole array a current is induced in the levitation coil. A first drive coil having a magnetic field coupled to drive the pole array also has a magnetic flux which induces a parasitic current in the levitation coil. A second drive coil having a magnetic field is positioned to attenuate the parasitic current in the levitation coil by canceling the magnetic flux of the first drive coil which induces the parasitic current. Steps in the method include generating a magnetic field with a pole array for levitating an object; inducing current in a levitation coil in response to motion of the magnetic field of the pole array; generating a magnetic field with a first drive coil for propelling the object; and generating a magnetic field with a second drive coil for attenuating effects of the magnetic field of the first drive coil on the current in the levitation coil.

  1. ICCM Conference, San Diego, CA July 14-18, 2003 Metallic Coil-Polymer Braid Composites

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    14th ICCM Conference, San Diego, CA July 14-18, 2003 Metallic Coil-Polymer Braid Composites: I-0416 USA ABSTRACT Incorporation of metallic inductive elements into composites introduces a new opportunity thin in order to tune the composite to operate within microwave regimes. Coil arrays, on the other hand

  2. Tesla coil discharges guided by femtosecond laser filaments in air Yohann Brelet1

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Tesla coil discharges guided by femtosecond laser filaments in air Yohann Brelet1 , Aurélien, Palaiseau, France A Tesla coil generator was designed to produce high voltage pulses oscillating at 100 k experiments of laser guided discharges obtained in air by high voltage bursts delivered by a compact Tesla

  3. A generalized likelihood ratio technique for automated analysis of bobbin coil eddy current dataq

    E-Print Network [OSTI]

    Polikar, Robi

    A generalized likelihood ratio technique for automated analysis of bobbin coil eddy current dataq M signals that are commonly found in bobbin coil eddy current data. The performance of the proposed for automated processing and classi®cation of eddy current data. q 2002 Elsevier Science Ltd. All rights

  4. Eddy currents in a gradient coil, modelled as circular loops of strips

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    Eddy currents in a gradient coil, modelled as circular loops of strips J.M.B. Kroot, S.J.L. van. Due to induction eddy currents occur which lead to the so-called edge-effect. The edge- effect depends the gradient coils themselves. Eddy currents occur, causing perturbations on the expected gradient field

  5. Eddy current coil interaction with a right-angled conductive wedge

    E-Print Network [OSTI]

    Bowler, John R.

    Eddy current coil interaction with a right-angled conductive wedge BY T. P. THEODOULIDIS 1 AND J. R: eddy current; conductive wedge; coil impedance 1. Introduction The quasi-static electromagnetic field whose axis is normal to one of the wedge faces. The problem has applications in eddy current non

  6. Analysis of eddy currents in a gradient coil J.M.B. Kroot

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    Analysis of eddy currents in a gradient coil J.M.B. Kroot Eindhoven University of Technology P in the tangential direction as well, due to eddy currents induced by other coils. In order to take the dependence, and the frequency is low enough to allow for a quasi­static approximation. Due to induction eddy currents occur

  7. Analysis of eddy currents in a gradient coil J.M.B. Kroot

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    Analysis of eddy currents in a gradient coil J.M.B. Kroot Eindhoven University of Technology P in the tangential direction as well, due to eddy currents induced by other coils. In order to take the dependence, and the frequency is low enough to allow for a quasi-static approximation. Due to induction eddy currents occur

  8. Eddy currents in a gradient coil, modeled as circular loops of strips

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    Eddy currents in a gradient coil, modeled as circular loops of strips J.M.B. Kroot, S.J.L. van to induction, eddy currents occur, resulting in a so-called edge-effect. Higher frequencies cause stronger edge by a gradient coil induces eddy currents in the conducting structures. The eddy currents cause perturbations

  9. Induction logging device with a pair of mutually perpendicular bucking coils

    DOE Patents [OSTI]

    Koelle, Alfred R. (Los Alamos, NM); Landt, Jeremy A. (Los Alamos, NM)

    1981-01-01T23:59:59.000Z

    An instrument is disclosed for mapping vertical conductive fractures in a resistive bedrock, magnetically inducing eddy currents by a pair of vertically oriented, mutually perpendicular, coplanar coils. The eddy currents drive magnetic fields which are picked up by a second, similar pair of coils.

  10. The B00 model coil in the ATLAS Magnet Test Facility

    E-Print Network [OSTI]

    Dudarev, A; ten Kate, H H J; Anashkin, O P; Keilin, V E; Lysenko, V V

    2001-01-01T23:59:59.000Z

    A 1-m size model coil has been developed to investigate the transport properties of the three aluminum-stabilized superconductors used in the ATLAS magnets. The coil, named B00, is also used for debugging the cryogenic, power and control systems of the ATLAS Magnet Test Facility. The coil comprises two double pancakes made of the barrel toroid and end-cap toroid conductors and a single pancake made of the central solenoid conductor. The pancakes are placed inside an aluminum coil casing. The coil construction and cooling conditions are quite similar to the final design of the ATLAS magnets. The B00 coil is well equipped with various sensors to measure thermal and electrodynamic properties of the conductor inside the coils. Special attention has been paid to the study of the current diffusion process and the normal zone propagation in the ATLAS conductors and windings. Special pick-up coils have been made to measure the diffusion at different currents and magnetic field values. (6 refs).

  11. Soil Water Retention Measurements Using a Combined Tensiometer-Coiled Time Domain Reflectometry Probe

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    Soil Water Retention Measurements Using a Combined Tensiometer-Coiled Time Domain Reflectometry al., 1975; Arya et al.,that can be used to determine soil water retention curves in both 1975; Royer of a standard tensiometer. The combined tensiometer-coiled TDR probe was con- of soil water retention curves

  12. Modeling of a Multi-Stream Injection COIL with Enhanced Mixing Ejectors

    E-Print Network [OSTI]

    Carroll, David L.

    - oxygen generator (SOG). The liquid SOG technology has developed to a fairly mature state. However, much-pressure chemical oxygen- iodine laser (COIL) have been experimentally tested. To obtain a better understanding The chemical oxygen-iodine laser (COIL) was first demonstrated in 1978 [McDermott, 1978]. Since that initial

  13. Simulation model finned water-air-coil withoutcondensation

    SciTech Connect (OSTI)

    Wetter, Michael

    1999-01-01T23:59:59.000Z

    A simple simulation model of a finned water-to- air coil without condensation is presented. The model belongs to a collection of simulation models that allows eficient computer simulation of heating, ventilation, and air-conditioning (HVAC) systems. The main emphasis of the models is short computation time and use of input data that are known in the design process of an HVAC system. The target of the models is to describe the behavior of HVAC components in the part load operation mode, which is becoming increasingly important for energy efficient HVAC systems. The models are intended to be used for yearly energy calculation or load calculation with time steps of about 10 minutes or larger. Short-time dynamic effects, which are of interest for different aspects of control performance, are neglected. The part load behavior of the coil is expressed in terms of the nominal condition and the dimensionless variation of the heat transfer with change of mass flow and temperature on the water side and the air side. The effectiveness- NTU relations are used to parametrize the convective heat transfer at nominal conditions and to compute the part load conditions. Geometrical data for the coil are not required, The calculation of the convective heat transfer coefficients at nominal conditions is based on the ratio of the air side heat transfer coefficients multiplied by the fin eficiency and divided by the water side heat transfer coefficient. In this approach, the only geometrical information required are the cross section areas, which are needed to calculate the~uid velocities. The formulas for estimating this ratio are presented. For simplicity the model ignores condensation. The model is static and uses only explicit equations. The explicit formulation ensures short computation time and numerical stability. This allows using the model with sophisticated engineering methods such as automatic system optimization. The paper fully outlines the algorithm description and its simplifications. It is not tailored for a particular simulation program to ensure easy implementation in any simulation program.

  14. Effect of bubbling on the current carrying capacity of small BSCCO coils

    SciTech Connect (OSTI)

    El-Marazki, L.O.; Polak, M.; Zhang, W. [Univ. of Wisconsin, Madison, WI (United States)

    1997-06-01T23:59:59.000Z

    One of the problems facing the applications of BSCCO/Ag tapes in HTC magnets is their deformation during heat treatment and/or after testing in liquid Cryogen, known as bubbling. In this paper, the authors studied the effect of bubbles which occur during heat treatment, on the current carrying capacity of two single layer coils. The first coil was made from 2212/Ag Powder In Tube (PIT) monofilament tape which was fabricated by Oxford Instrument, Inc. The second coil was made from another 2212/Ag (PIT) monofilament tape which was fabricated at the University of Wisconsin-Madison. After heat treatment, the first coil had several bubbles, while the second had only one. The current-voltage characteristic (I-V) curves were measured for both coils at 4.2 K and a zero external magnetic field. I-V curves for bubbled and unbubbled sections of the first coil were measured in external magnetic fields up to 0.5 Tesla (T). The critical current (I{sub c}) of the first coil was 20 A (1 {mu}V/cm criterion), which was only 20 % of the I{sub c} of the good section of the coil. The I{sub c} of the second coil was 147 A (1 {mu}V/cm criterion). The critical current density (J{sub c}) in the BSCCO core were l.4 x 10{sup 4} A/cm{sup 2} and 1.7x 10{sup 5} A/cm{sup 2} for the first and second coil respectively. The authors also observed that the I-V curve of the second coil had an unusual shape, consisting of a linear voltage section after the zero voltage section, followed by the usual non-linear I-V dependence. In spite of a large reduction of local critical current (I{sub c}) values due to bubbling, both coils can carry currents close to the critical currents of the best coil sections. A microstructure study was also conducted on the bubbled and unbubbled sections of the coils and the results are discussed.

  15. Neutron resonance spin flippers: Static coils manufactured by electrical discharge machining

    SciTech Connect (OSTI)

    Martin, N.; Kredler, L.; Häußler, W. [Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching (Germany); Physik-Department E21, Technische Universität München, 85748 Garching (Germany); Wagner, J. N. [Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany); Dogu, M.; Fuchs, C. [Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching (Germany); Böni, P. [Physik-Department E21, Technische Universität München, 85748 Garching (Germany)

    2014-07-15T23:59:59.000Z

    Radiofrequency spin flippers (RFSF) are key elements of Neutron Resonance Spin Echo (NRSE) spectrometers, which allow performing controlled manipulations of the beam polarization. We report on the design and test of a new type of RFSF which originality lies in the new manufacturing technique for the static coil. The largely automated procedure ensures reproducible construction as well as an excellent homogeneity of the neutron magnetic resonance condition over the coil volume. Two salient features of this concept are the large neutron window and the closure of the coil by a ?-metal yoke which prevents field leakage outside of the coil volume. These properties are essential for working with large beams and enable new applications with coils tilted with respect to the beam axis such as neutron Larmor diffraction or the study of dispersive excitations by inelastic NRSE.

  16. An overview of the nondestructive inspection techniques for coiled tubing and pipe

    SciTech Connect (OSTI)

    Stanley, R.K. [Quality Tubing, Inc., Houston, TX (United States)

    1996-11-01T23:59:59.000Z

    Coiled steel tubing and pipe in the diameter range 20--90 mm (0.75--3.5 in.) are replacing conventional oilfield materials for a variety of purposes including workovers, drilling, production tubing, umbilicals, and flowlines. They offer all the advantages of long tubes with no threaded connections. Because coiled tubing is being produced to high quality standards, it is lasting longer than ever before, and the need has arisen for careful nondestructive inspection at frequent intervals to determine accumulated damage to the string and the need for repair. Currently, derating of used coiled tubing using nondestructive testing (NDT) is not performed. While NDT devices for oilfield tubulars have been well documented, little has been written regarding the NDT of coiled tubing. This paper outlines the current NDT methods used during the manufacture of new tubing and the inspection of used coiled tubing.

  17. Testing military grade magnetics (transformers, inductors and coils).

    SciTech Connect (OSTI)

    Not Available

    2009-09-01T23:59:59.000Z

    Engineers and designers are constantly searching for test methods to qualify or 'prove-in' new designs. In the High Reliability world of military parts, design test, qualification tests, in process tests and product characteristic tests, become even more important. The use of in process and function tests has been adopted as a way of demonstrating that parts will operate correctly and survive its 'use' environments. This paper discusses various types of tests to qualify the magnetic components - the current carrying capability of coils, a next assembly 'as used' test, a corona test and inductance at temperature test. Each of these tests addresses a different potential failure on a component. The entire process from design to implementation is described.

  18. Light propagation through a coiled optical fiber and Pancharatnam phase

    E-Print Network [OSTI]

    Rajendra Bhandari

    2007-05-31T23:59:59.000Z

    The nature of changes in the interference pattern caused by the presence of polarization-changing elements in one or both beams of an interferometer, in particular those caused by an effective optical activity due to passage of a polarized beam through a coiled optical fiber are clarified. It is pointed out that for an incident state that is not circularly polarized so that the two interfering beams go to different polarization states, there is an observable nonzero Pancharatnam phase shift between them which depends on the incident polarization state and on the solid angle subtended by the track of the $\\vec{k}$-vector at the centre of the sphere of k-vectors. The behaviour of this phase shift is singular when the two interfering states are nearly orthogonal. It is shown that for zero path difference between the two beams, the amplitude of intensity modulation as a function of optical activity is independent of the incident polarization state.

  19. Sequence stratigraphy, facies architecture and reservoir distribution, Cretaceous lowstand fan reservoirs, Southern Basin, onshore Trinidad

    SciTech Connect (OSTI)

    Sprague, A.R.; Larue, D.K.; Faulkner, B.L. [Exxon Production Research Company, Houston, TX (United States)] [and others

    1996-08-01T23:59:59.000Z

    Thick Albian-Campanian mass-flow sandstones in the Southern Basin Trinidad were deposited within submarine canyons incised into the northern continental slope of South America and as associated down-dip basin-floor lowstand fans. The contemporaneous slope to basin-floor break lay across the Southern Basin area with turbidity current paleoflow being to the northwest. North of this paleo-slope break graded to massive, channelized, high-density turbidite sandstones occur interstratified with shaly overbank and channel abandonment deposits. A progression of depositional sub-environments from proximal through distal lowstand fan can be recognized. All fine and thin upward but can be discriminated by the occurrence of slumps, debris flows and conglomerates, the grain-size and bedding scale of sandstones and the characteristics of low-density turbidites and mudrocks. South of the paleo-slope break mass-flow deposits comprise muddy slumps and debris flows rich in granules and pebbles deposited in slope canyons. During periods of turbidity current by-pass or fan abandonment hemipelagic settling processes predominated. Reservoir distribution maps of these lowstand fans have been constructed utilizing geometric constraints, analogs and paleoslope determinations from oriented core. The interpreted canyon locations and orientations are key to the understanding of reservoir distribution on the basin-floor tract to the north: a vital component in the exploration of the basin.

  20. Carbon Contamination Topography Analysis of EUV Masks Yu-Jen Fan1

    E-Print Network [OSTI]

    Carbon Contamination Topography Analysis of EUV Masks Yu-Jen Fan1 , Leonid Yankulin1 , Petros ABSTRACT The impact of carbon contamination on extreme ultraviolet (EUV) masks is significant due to throughput loss and potential effects on imaging performance. Current carbon contamination research primarily

  1. Seconder's discussion of "Large covariance estimation by thresholding principal orthogonal complements" by Fan, Liao

    E-Print Network [OSTI]

    Fryzlewicz, Piotr

    Professors Fan, Liao and Mincheva for the stimu- lating and thought-provoking article. The POET estimator verify this model assumption, and secondly, whether POET offers acceptable performance if the assumption from the point of view of the usability of POET: the authors warn us that POET may perform poorly if K

  2. Energy Conservation Program for Consumer Products: Test Procedures for Residential Furnaces Fans; Correction

    Broader source: Energy.gov [DOE]

    On January 3, 2014 the U.S. Department of Energy (DOE) published a final rule in the Federal Register that established the test procedure for residential furnace fans. Due to drafting errors, that document inadvertently removed necessary incorporation by reference material in the Code of Federal Regulations (CFR). This final rule rectifies this error by once again adding the removed material.

  3. CHANGES IN SANDSTONE DISTRIBUTIONS BETWEEN THE UPPER, MIDDLE, AND LOWER FAN IN THE ARKANSAS JACKFORK GROUP 

    E-Print Network [OSTI]

    Mack, Clayton P.

    2010-07-14T23:59:59.000Z

    is deposited moderately even and is quite concentrated throughout the exposure. The middle fan outcrops contain approximately 72.6% sandstone and show similar patterns, except that the amalgamated sandstone beds are not as thick, 5-15m and contain more shale...

  4. Infrared Imaging Solar Spectrograph at Purple Mountain Observatory Hui Li , Zhongyu Fan and Jianqi You

    E-Print Network [OSTI]

    Li, Hui

    Infrared Imaging Solar Spectrograph at Purple Mountain Observatory Hui Li , Zhongyu Fan and Jianqi, Chinese Academy of Sciences Abstract. Since 1986, we have made some improvements to the multichannel solar to it a multichannel infrared imaging solar spectrograph. The original spectrograph can be used to observe

  5. P-type SiGe/Si Superlattice Cooler Xiaofeng Fan, Gehong Zeng, Edward Croke1

    E-Print Network [OSTI]

    P-type SiGe/Si Superlattice Cooler Xiaofeng Fan, Gehong Zeng, Edward Croke1 , Gerry Robinson, Chris and characterization of single element p-type SiGe/Si superlattice coolers are described. Superlattice structures were]. SiGe is a good thermoelectric material especially for high temperature applications [11

  6. Of the various biomolecular building blocks in use in nature, coiled-coil forming peptides are amongst those with the most potential as building blocks for the synthetic bottom-up

    E-Print Network [OSTI]

    Hille, Sander

    . In the simulations the packing together of hydrophobic amino acid side chains in the coiled-coil core provided almost soluble it functions as the corona in the PS9-E block copolymer, and tempers PS induced aggregation-coil linker in PS-E/K-PEG can be dissociated by raising the temperature. This reduction in the corona size

  7. Measurements on Subscale Y-Ba-Cu-O Racetrack Coils at 77 K and Self-Field

    E-Print Network [OSTI]

    Wang, X.

    2010-01-01T23:59:59.000Z

    second- generation HTS wire development and manufacturing,”18] SuperPower Inc. , “2G HTS wire for coil applications,”

  8. SENSE Induced Correlations are used to Optimize RF Coil Design for Specific fcMRI Studies Iain P Bruce1

    E-Print Network [OSTI]

    Rowe, Daniel B.

    reconstruction using a reduction factor of R=2. Changes in a butterfly shaped coil geometry in Fig. 1b were

  9. UNIT NUMBER

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

    4 UNIT NAME C-611 Underaround Diesel Tank REGULATORY STATUS: AOC LOCATION: Immediately southeast of C-611 APPROXIMATE DIMENSIONS: 1000 gallon FUNCTION: Diesel storage OPERATIONAL...

  10. The development of a rod-coil redox polymer composed of biphenyl esters and poly (4-vinylpyridine)

    E-Print Network [OSTI]

    DeCormier, Amy Urbanowicz

    2001-01-01T23:59:59.000Z

    A rod-coil polymer was successfully synthesized to provide a backbone structure from which a redox polymer was produced. The rod was composed of biphenyl esters and the coil was composed of poly (4-vinylpyridine). The coil was produced by anionic...

  11. Coil Winding for the Series-Connected Hybrid Magnet Mark D. Bird, National High Magnetic Field Laboratory

    E-Print Network [OSTI]

    Weston, Ken

    Coil Winding for the Series-Connected Hybrid Magnet Mark D. Bird, National High Magnetic Field will produce for MagLab users magnetic fields of 36T featuring unprecedented (1ppm) homogeneity. Winding of the superconducting coil, the largest component of the magnet windings, is well underway. The superconducting coil

  12. Improving Best Air Conditioner Efficiency by 20-30% through a High Efficiency Fan and Diffuser Stage Coupled with an Evaporative Condenser Pre-Cooler

    SciTech Connect (OSTI)

    Parker, Danny S; Sherwin, John R; Raustad, Richard

    2014-04-10T23:59:59.000Z

    The Florida Solar Energy Center (FSEC) conducted a research project to improve the best residential air conditioner condenser technology currently available on the market by retrofitting a commercially-available unit with both a high efficiency fan system and an evaporative pre-cooler. The objective was to integrate these two concepts to achieve an ultra-efficient residential air conditioner design. The project produced a working prototype that was 30% more efficient compared to the best currently-available technologies; the peak the energy efficiency ratio (EER) was improved by 41%. Efficiency at the Air-Conditioning and Refrigeration Institute (ARI) standard B-condition which is used to estimate seasonal energy efficiency ratio (SEER), was raised from a nominal 21 Btu/Wh to 32 Btu/Wh.

  13. DESIGN, FABRICATION AND TEST OF THE REACT AND WIND, NB(3)SN, LDX FLOATING COIL CONDUCTOR.

    SciTech Connect (OSTI)

    SMITH,B.A.; MICHAEL,P.C.; MINERVINI,J.V.; TAKAYASU,M.; SCHULTZ,J.H.; GREGORY,E.; PYON,T.; SAMPSON,W.B.; GHOSH,A.; SCANLAN,R.

    2000-09-17T23:59:59.000Z

    The Levitated Dipole Experiment (LDX) is a novel approach for studying magnetic confinement of a fusion plasma. In this approach, a superconducting ring coil is magnetically levitated for up to 8 hours a day in the center of a 5 meter diameter vacuum vessel. The levitated coil, with on-board helium supply, is called the gloating Coil (F-Coil). Although the maximum field at the coil is only 5.3 tesla, a react-and-wind Nb{sub 3}Sn conductor was selected because the relatively high critical temperature will enable the coil to remain levitated while it warms from 5 K to 10 K. Since pre-reacted Nb{sub 3}Sn tape is no longer commercially available, a composite conductor was designed that contains an 18 strand Nb{sub 3}Sn Rutherford cable. The cable was reacted and then soldered into a structural copper channel that completes the conductor and also provides quench protection. The strain state of the cable was continuously controlled during fabrication steps such as: soldering into the copper channel, spooling, and coil winding, to prevent degradation of the critical current. Measurements of strand and cable critical currents are reported, as well as estimates of the effect of fabrication, winding and operating strains on critical current.

  14. Aluminum Stabilized NbTi Conductor Test Coil Design, Fabrication, and Test Results

    SciTech Connect (OSTI)

    Andreev, N.; Chlachidze, G.; Evbota, D.; Kashikhin, V.S.; Lamm, M.; Makarov, A.; Tartaglia, M.; /Fermilab; Nakamoto, T.; Ogitsu, T.; Tanaka, K.; Yamamoto, A.; /KEK, Tsukuba

    2011-09-01T23:59:59.000Z

    A new generation of precision muon conversion experiments is planned at both Fermilab and KEK. These experiments will depend upon a complex set of solenoid magnets for the production, momentum selection and transport of a muon beam to a stopping target, and for tracking detector momentum analysis of candidate conversion electrons from the target. Baseline designs for the production and detector solenoids use NbTi cable that is heavily stabilized by an extruded high RRR aluminum jacket. A U.S.-Japan research collaboration has begun whose goal is to advance the development of optimized Al-NbTi conductors, gain experience with the technology of winding coils from this material, and test the conductor performance as modest length samples become available. For this purpose, a 'conductor test' solenoid with three coils was designed and built at Fermilab. A sample of the RIKEN Al-NbTi conductor from KEK was wound into a 'test' coil; this was sandwiched between two 'field' coils wound from doubled SSC cable, to increase the peak field on the RIKEN test coil. All three solenoid coils were epoxy impregnated, and utilized aluminum outer bandage rings to apply preload to the coils when cold. The design and fabrication details, and results of the magnet quench performance tests are presented and discussed.

  15. Insert Coil Test for HEP High Field Magnets Using YBCO Coated Conductor Tapes

    SciTech Connect (OSTI)

    Lombardo, V.; Barzi, E.; Turrioni, D.; Zlobin, A.V.; /Fermilab

    2011-06-15T23:59:59.000Z

    The final beam cooling stages of a Muon Collider may require DC solenoid magnets with magnetic fields of 30-50 T. In this paper we present progress in insert coil development using commercially available YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} Coated Conductor. Technological aspects covered in the development, including coil geometry, insulation, manufacturing process and testing are summarized and discussed. Test results of double pancake coils operated in liquid nitrogen and liquid helium are presented and compared with the performance of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} tape short samples.

  16. Shaping Coil Currents: 0 kA Vedge/Vcore: 43.8

    E-Print Network [OSTI]

    Base Shaping Coil Currents: 0 kA 0 kA Vedge/Vcore: 43.8 Pcore/Pedge: 544 0 1 2 R (m) -1 -0.5 0 0.5 1 1.5 Z(m) Psi and |B| Contours High Shaping Coil Currents: 1 kA 12 kA Vedge/Vcore: 187 Pcore/Pedge: 6120 0 1 2 R (m) -1 -0.5 0 0.5 1 1.5 Z(m) Psi and |B| Contours Shaping Coil Currents: 50 kA 50 kA Vedge

  17. Optimization and test of a 120mm LARP Nb3Sn quadrupole coil using magnetic mirror structure

    SciTech Connect (OSTI)

    Bossert, R.; Ambrosio, G.; Andreev, N.; /Fermilab; Anerella, M.; /Brookhaven; Barzi, E.; /Fermilab; Caspi, S.; /LBL, Berkeley; Cheng, D.; Chlachidze, G.; /Fermilab; Dietderich, D.; Felice, H.; Ferracin, P.; /LBL, Berkeley /Brookhaven /LBL, Berkeley /Fermilab /LBL, Berkeley /Brookhaven

    2011-09-01T23:59:59.000Z

    The US-LARP collaboration is developing a new generation of large-aperture high-field quadrupoles based on Nb{sub 3}Sn superconductor for the LHC upgrades. The development and implementation of this new technology involves the fabrication and testing of series of model magnets, coils and other components with various design and processing features. New 120-mm HQ coils made of Rutherford cable, one with an interlayer resistive core, and both with optimized reaction processes, were fabricated and tested using a quadrupole mirror structure under operating conditions similar to those in a real magnet. The coils were instrumented with voltage taps and strain gauges to study the mechanical and quench performance. Quench antenna and temperature gauges were installed in the mirror structure to measure the coil temperature and locate quench origins. This paper presents details of the coil design and fabrication procedures, coil assembly and pre-stress in the quadrupole mirror structure, and coil test results.

  18. Improved nuclear magnetic resonance apparatus having semitoroidal rf coil for use in topical NMR and NMR imaging

    DOE Patents [OSTI]

    Fukushima, E.; Roeder, S.B.W.; Assink, R.A.; Gibson, A.A.V.

    1984-01-01T23:59:59.000Z

    An improved nuclear magnetic resonance (NMR) apparatus for use in topical magnetic resonance (TMR) spectroscopy and other remote sensing NMR applications includes a semitoroidal radio frequency (rf) coil. The semitoroidal rf coil produces an effective alternating magnetic field at a distance from the poles of the coil, so as to enable NMR measurements to be taken from selected regions inside an object, particularly including human and other living subjects. The semitoroidal rf coil is relatively insensitive to magnetic interference from metallic objects located behind the coil, thereby rendering the coil particularly suited for use in both conventional and superconducting NMR magnets. The semitoroidal NMR coil can be constructed so that it emits little or no excess rf electric field associated with the rf magnetic field, thus avoiding adverse effects due to dielectric heating of the sample or to any other interaction of the electric field with the sample.

  19. Finding the largest low-rank clusters with Ky Fan 2-k-norm and l1-norm

    E-Print Network [OSTI]

    Xuan Vinh Doan

    2014-03-24T23:59:59.000Z

    Mar 24, 2014 ... Abstract: We propose a convex optimization formulation with the Ky Fan 2-k-norm and l1-norm to fi nd k largest approximately rank-one ...

  20. Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis

    E-Print Network [OSTI]

    Kimla, John

    2010-07-14T23:59:59.000Z

    The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

  1. Electronic high voltage generator with a high temperature superconducting coil

    SciTech Connect (OSTI)

    Jin, J.X.; Liu, H.K.; Dou, S.X. [Univ. of Wollongong (Australia)] [and others

    1996-12-31T23:59:59.000Z

    A novel method for generating high voltages from a low voltage DC source, by using a capacitor and inductor in a R, L, C resonant circuit has been developed with the consideration of using a high temperature superconducting (HTS) coil. To generate high voltages the polarity of a low voltage battery source is reversed each half resonant cycle, the control being achieved by an electronic switch. Resistance in the circuit limits the voltages that can be built up. By replacing a copper winding inductor with another inductor which has a HTS winding, the magnitude of achievable voltages is substantially increased. A (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10+x} multifilament HTS wire is considered in this work to make the superconducting inductor. The high voltages generated are not capable of supplying low impedance loads, however, possible applications of the generator include electrical partial discharge testing and insulation resistance testing. It could also be used as a testing method for the HTS itself with respect to the critical current and AC loss measurement.

  2. UNIT NUMBER

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

    3 C-750B Diesel UST UNIT NAME REGULATORY STATUS: AOC LOCATION: Southeast corner of C-750 APPROXIMATE DIMENSIONS: 10,000 gallon FUNCTION: Diesel storage OPERATIONAL STATUS: Removed...

  3. Coil performance evaluation based on electrodynamics : tools for hardware design and validation in magnetic resonance imaging

    E-Print Network [OSTI]

    Lattanzi, Riccardo

    2008-01-01T23:59:59.000Z

    Parallel MRI techniques allow acceleration of MR imaging beyond traditional speed limits. In parallel MRI, radiofrequency (RF) detector coil arrays are used to perform some degree of spatial encoding which complements ...

  4. Low Spring Index NiTi Coil Actuators for Use in Active Compression Garments

    E-Print Network [OSTI]

    Holschuh, Bradley

    This paper describes the modeling, development, and testing of low spring index nickel titanium (NiTi) coil actuators designed for use in wearable compression garments, and presents a prototype tourniquet system using these ...

  5. Phase behavior of disk-coil molecules : from bulk thermodynamics to blends with block copolymers

    E-Print Network [OSTI]

    Kim, Yong-ju

    2013-01-01T23:59:59.000Z

    In this thesis, we explore the phase behavior of discotic molecules in various circumstances. We first study the thermodynamics of disk-coil molecules. The system shows rich phase behavior as a function of the relative ...

  6. Design and control of a voice coil actuated robot arm for human-robot interaction

    E-Print Network [OSTI]

    McBean, John M. (John Michael), 1979-

    2004-01-01T23:59:59.000Z

    The growing field of human-robot interaction (HRI) demands robots that move fluidly, gracefully, compliantly and safely. This thesis describes recent work in the design and evaluation of long-travel voice coil actuators ...

  7. In-Vessel Coil Material Failure Rate Estimates for ITER Design Use

    SciTech Connect (OSTI)

    L. C. Cadwallader

    2013-01-01T23:59:59.000Z

    The ITER international project design teams are working to produce an engineering design for construction of this large tokamak fusion experiment. One of the design issues is ensuring proper control of the fusion plasma. In-vessel magnet coils may be needed for plasma control, especially the control of edge localized modes (ELMs) and plasma vertical stabilization (VS). These coils will be lifetime components that reside inside the ITER vacuum vessel behind the blanket modules. As such, their reliability is an important design issue since access will be time consuming if any type of repair were necessary. The following chapters give the research results and estimates of failure rates for the coil conductor and jacket materials to be used for the in-vessel coils. Copper and CuCrZr conductors, and stainless steel and Inconel jackets are examined.

  8. Stent-Assisted Coil Embolization of a Traumatic Wide-Necked Renal Segmental Artery Pseudoaneurysm

    SciTech Connect (OSTI)

    Schlunz-Hendann, Martin; Wetter, Axel, E-mail: axel.wetter@klinikum-duisburg.de [Duisburg Clinical Center, Clinic of Radiology and Neuroradiology (Germany); Landwehr, Peter [Hospital Henriettenstiftung, Clinic of Diagnostic and Interventional Radiology (Germany); Brassel, Friedhelm [Duisburg Clinical Center, Clinic of Radiology and Neuroradiology (Germany)

    2011-10-15T23:59:59.000Z

    We present the case of an Afghan woman with a renal segmental artery false aneurysm of the right kidney due to a shell splinter injury. Stent-assisted coil embolization of the aneurysm is described in detail.

  9. Construction and Test of 3.6 m Nb3Sn Racetrack Coils for LARP

    SciTech Connect (OSTI)

    Wanderer, P.; Ambrosio, G.; Anerella, M.; Barzi, E.; Bossert, R.; Caspi, S.; Cheng, D. W.; Cozzolino, J.; Dietderich, D.R.; Escallier, J.; Feher, S.; Ferracin, P.; Ganetis, G.; Ghosh, A. K.; Gupta, R. C.; Hafalia,, A. R.; Hannaford, C. R.; Joshi, P.; Kovach, P.; Lietzke, A. F.; Lizarazo, J.; Louie, W.; Marone, A.; McInturff, A.D.; Muratore, J.; Nobrega, F.; Sabbi, G.; Schmalzle, J.; Thomas, R.; Turrioni, D.

    2008-06-01T23:59:59.000Z

    Development of high-performance Nb{sub 3}Sn quadrupoles is one of the major goals of the LHC Accelerator Research Program (LARP). As part of this program, long racetrack magnets were made in order to check the fabrication steps for long Nb{sub 3}Sn coils, that the changes in coil length that take place during reaction and cooldown are correctly accounted for in the quadrupole design, and the use of a long aluminum shell for the support structure. This paper reports the construction of the first long Nb{sub 3}Sn magnet with racetrack coils 3.6 m long. The magnet reached a nominal 'plateau' at 9596 A after five quenches. This is about 90% of the estimated conductor limit. The peak field in the coils at this current was 11 T.

  10. Construction and Test of 3.5 m Nb3Sn Racetrack Coils for LARP.

    SciTech Connect (OSTI)

    Wanderer,P.; Ambrosio, G.; Anerella, M.; Barzi, E.; Bossert, R.; Caspi, S.; Cheng, D.W.; Cozzolino, J.; Dietderich, D.R.; Escallier, J.; Feher, S.; Ferracin, P.; Ganetis, G.; Ghosh, A.K.; Gupta, R.C.; Hafalia, A.R.; Hannaford, C.R.; Joshi, P.; Kovach, P.; Lietzke, A.F.; Lizarazo, J.; Louie, W.; Marone, A.; McInturff, A.D.; Muratore, J.; Nobrega, R.; Sabbi, G.; Schmalzle, J.; Thomas, R.; Turrioni, D.

    2007-08-27T23:59:59.000Z

    Development of high-performance Nb{sub 3}Sn quadrupoles is one of the major goals of the LHC Accelerator Research Program (LARP). As part of this program, long racetrack magnets were made in order to check the fabrication steps for long Nb{sub 3}Sn coils, that the changes in coil length that take place during reaction and cooldown are correctly accounted for in the quadrupole design, and the use of a long aluminum shell for the support structure. This paper reports the construction of the first long Nb{sub 3}Sn magnet with racetrack coils 3.6 m long. The magnet reached a nominal 'plateau' at 9596 A after five quenches. This is about 90% of the estimated conductor limit. The peak field in the coils at this current was 11 T.

  11. Heat Transfer of a Multiple Helical Coil Heat Exchanger Using a Microencapsulated Phase Change Material Slurry 

    E-Print Network [OSTI]

    Gaskill, Travis

    2012-02-14T23:59:59.000Z

    The present study has focused on the use of coil heat exchangers (CHEs) with microencapsulated phase change material (MPCM) slurries to understand if CHEs can yield greater rates of heat transfer. An experimental study was conducted using a...

  12. Tyrosinase-Catalyzed Synthesis of a Universal Coil-Chitosan Bioconjugate for Protein Immobilization

    E-Print Network [OSTI]

    Buschmann, Michael

    Tyrosinase-Catalyzed Synthesis of a Universal Coil-Chitosan Bioconjugate for Protein Immobilization was synthesized using a tyrosinase-catalyzed protocol. Extensive UV/vis and IR characterization demonstrated

  13. Heat Transfer of a Multiple Helical Coil Heat Exchanger Using a Microencapsulated Phase Change Material Slurry

    E-Print Network [OSTI]

    Gaskill, Travis

    2012-02-14T23:59:59.000Z

    The present study has focused on the use of coil heat exchangers (CHEs) with microencapsulated phase change material (MPCM) slurries to understand if CHEs can yield greater rates of heat transfer. An experimental study was conducted using a...

  14. N-AND P-TYPE SiGe/Si SUPERLATTICE COOLERS Xiaofeng Fan, Gehong Zeng, Edward Croke

    E-Print Network [OSTI]

    N- AND P-TYPE SiGe/Si SUPERLATTICE COOLERS Xiaofeng Fan, Gehong Zeng, Edward Croke a) , Gerry, 95064 Phone: (805) 893-4235 Fax: (805) 893-7990 Email: fan@opto.ece.ucsb.edu ABSTRACT SiGe is a good of single-element SiGe/Si superlattice coolers of both n- and p-type devices are described for room

  15. Temperature and humidity control during cooling and dehumidifying by compressor and evaporator fan speed variation

    SciTech Connect (OSTI)

    Krakow, K.I.; Lin, S.; Zeng, Z.S. [Concordia Univ., Montreal, Quebec (Canada). Dept. of Mechanical Engineering

    1995-08-01T23:59:59.000Z

    The accurate control of temperature and relative humidity during cooling and dehumidifying air-conditioning processes may be achieved by compressor and evaporator fan speed variation. Proportional-integral-differential (PID) control methods are shown to be suitable for attaining compressor and evaporator fan speeds such that the sensible and latent components of the refrigeration system capacity equal the sensible and latent components of the system load. The feasibility of the control method has been verified experimentally. A numerical model of an environmental control system, including refrigeration, space, and PID control subsystems, has been developed. The model is suitable for determining system response to variations of PID coefficient values and to variations of system loads.

  16. Model Predictive Control for Energy Efficient Buildings

    E-Print Network [OSTI]

    Ma, Yudong

    2012-01-01T23:59:59.000Z

    T mixed T amb d OA ?T supply Cooling Fan Heating 20 Time (models for supply fan (5.6), cooling and heating coils (5.7)Solar radiation u cooling/heating coils supply fan dampers

  17. The distribution of the electric current in a watt-balance coil

    E-Print Network [OSTI]

    Sasso, Carlo Paolo; Mana, Giovanni

    2013-01-01T23:59:59.000Z

    In the watt balance experiment, separate measurements of the Lorentz and electromotive forces in a coil in a radial magnetic field enable a virtual comparison between mechanical and electric powers to be carried out, which lead to an accurate measurement of the Planck constant. This paper investigates the effect of a spatially inhomogeneous distribution of the electric current in the coil due to the higher or lower resistance of the outer or inner paths.

  18. Continuous Commissioning® of a Single Fan Dual Duct System in an Office Building 

    E-Print Network [OSTI]

    Dong, D.; Liu, M.

    2005-01-01T23:59:59.000Z

    The building has a total of 216 dual duct independent terminal boxes with air flow stations. The boxes are used for both interior and exterior zones. Pneumatic controllers and actuators are installed. A dual-duct single fan AHU serves the building... the setting. OPTIMAL CONTROL SCHEDULES The control schedule optimization includes terminal boxes, AHU, chillers, and boilers. All the pneumatic controls for the AHU system, except box controllers, are updated to DDC controls before the optimal...

  19. Depositional processes and facies of Trail Fan sandflat: Death Valley, California

    SciTech Connect (OSTI)

    Malicse, A.E.; Mazzullo, J.M.; Eide, M.G. (Texas A and M Univ., College Station, TX (United States))

    1992-01-01T23:59:59.000Z

    A study was conducted of the alluvial fan to playa transition along Trail fan in Death Valley, California with the primary objectives of documenting sedimentary facies and textural features of so-called arid region sandflat. The study involved description of sedimentary structures along trenches and meter-deep cores, description of surficial bedforms, and collection of samples for lithological analyses. Surficial features of Trail Fan sandflat gradually change downdip as a function of texture, ground water depth, and runoff. They include: (1) tongues of mudflows; (2) shallow braided channels that taper out into mudflat or coalesced into single channels; (3) puffy grounds; and (4) flat-smooth surface of the mudflat. The sediment's texture shows a fining downdip trend except when the surface are draped by mudflows. Four facies are distinguished downdip from the alluvial fan to playa mudflat. Facies 1 consists of massive, light gray, matrix to grain supported gravel, and is interpreted as debris flow or streamflow deposit. Facies 2 consists of thin-bedded (0.6--0.06 m), tan, massive, gravelly mud and is interpreted as mudflow deposit. Facies 2 consists of repeated sequences of thick-bedded (0.15 to 0.3 m), massive to planar stratified, graveliferous sand with mud drape and is interpreted as poorly sorted sheetflood or streamflow deposit. Facies 4 consist of light gray, planar laminated, coarsening upward mud to muddy sand, and is interpreted as mudflat facies. This study shows that arid region sandflat facies is a mosaic of mudflow, debris flow, sheetflood and streamflow deposits and is more complex than previous sandflat models described.

  20. WInd-and-react Bi-2212 coil development for accelerator magnets

    SciTech Connect (OSTI)

    Godeke, A.; Acosta, P.; Cheng, D.; Dietderich, D. R.; Mentink, M. G. T.; Prestemon, S. O.; Meinesz, M.; Hong, S.; Huang, Y.; Miao, H.; Parrell, J.; Sabbi, G.L.

    2009-10-13T23:59:59.000Z

    Sub-scale coils are being manufactured and tested at Lawrence Berkeley National Laboratory in order to develop wind-and-react Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} (Bi-2212) magnet technology for future graded accelerator magnet use. Previous Bi-2212 coils showed significant leakage of the conductors core constituents to the environment, which can occur during the partial melt reaction around 890 C in pure oxygen. The main origin of the observed leakage is intrinsic leakage of the wires, and the issue is therefore being addressed at the wire manufacturing level. We report on further compatibility studies, and the performance of new sub-scale coils that were manufactured using improved conductors. These coils exhibit significantly reduced leakage, and carry currents that are about 70% of the witness wire critical current (I{sub c}). The coils demonstrate, for the first time, the feasibility of round wire Bi-2212 conductors for accelerator magnet technology use. Successful high temperature superconductor coil technology will enable the manufacture of graded accelerator magnets that can surpass the, already closely approached, intrinsic magnetic field limitations of Nb-based superconducting magnets.

  1. A Coil Manufacturing Procedure for the ALICE Muon Arm Dipole Magnet

    E-Print Network [OSTI]

    Swoboda, D; CERN. Geneva

    1998-01-01T23:59:59.000Z

    A large Dipole Magnet is required for the Muon Arm spectrometer of the ALICE experiment[1,2]. The main parameters and basic design options of the dipole magnet have been described in [3]. The coils of the magnet will be wound from hollow Aluminium conductor of 50x50 mm² cross-section with a 30 mm diameter cooling hole in the centre. Different manufacturing techniques may be envisaged for the fabrication of the excitation coils. In this note we propose a procedure to construct the coils from straight extruded bars of half turn length. The different steps necessary to bend a half turn are described. A method to form complete turns, pancakes and the total coil is explained. A possible insulation process is presented. Advantages and critical areas of the coil construction process are highlighted in the conclusions. References [1]ALICE TP, CERN/LHCC 95-71 [2]ALICE TP Addendum, CERN/LHCC 96-32 [3]A Warm Magnet for the ALICE Muon Arm, ALICE 96/24, W.Flegel, D.Swoboda, CERN List of Figures Figure 1 Coil ...

  2. Shallow gas well drilling with coiled tubing in the San Juan Basin

    SciTech Connect (OSTI)

    Moon, R.G.; Ovitz, R.W.; Guild, G.J.; Biggs, M.D.

    1996-12-31T23:59:59.000Z

    Coiled tubing is being utilized to drill new wells, for re-entry drilling to deepen or laterally extend existing wells, and for underbalanced drilling to prevent formation damage. Less than a decade old, coiled tubing drilling technology is still in its inaugral development stage. Initially, utilizing coiled tubing was viewed as a {open_quotes}science project{close_quotes} to determine the validity of performing drilling operations in-lieu of the conventional rotary rig. Like any new technology, the initial attempts were not always successful, but did show promise as an economical alternative if continued efforts were made in the refinement of equipment and operational procedures. A multiwell project has been completed in the San Juan Basin of Northwestern New Mexico which provides documentation indicating that coiled tubing can be an alternative to the conventional rotary rig. A 3-well pilot project, a 6-well project was completed uniquely utilizing the combined resources of a coiled tubing service company, a producing company, and a drilling contractor. This combination of resources aided in the refinement of surface equipment, personnel, mud systems, jointed pipe handling, and mobilization. The results of the project indicate that utilization of coiled tubing for the specific wells drilled was an economical alternative to the conventional rotary rig for drilling shallow gas wells.

  3. Design, testing and two-dimensional flow modeling of a multiple-disk fan

    SciTech Connect (OSTI)

    Engin, Tahsin; Oezdemir, Mustafa; Cesmeci, Sevki [Department of Mechanical Engineering, The University of Sakarya, Esentepe Campus, 54187 Sakarya (Turkey)

    2009-11-15T23:59:59.000Z

    A multiple-disk Tesla type fan has been designed, tested and analyzed two-dimensionally using the conservation of angular momentum principle. Experimental results showed that such multiple-disk fans exhibited exceptionally low performance characteristics, which could be attributed to the low viscosity, tangential nature of the flow, and large mechanical energy losses at both suction and discharge sections that are comparable to the total input power. By means of theoretical analysis, local and overall shearing stresses on the disk surfaces have been determined based on tangential and radial velocity distributions of the air flow of different volume flow rates at prescribed disk spaces and rotational speeds. Then the total power transmitted by rotating disks to air flow, and the power acquired by the air flow in the gap due to transfer of angular momentum have been obtained by numerically integrating shearing stresses over the disk surfaces. Using the measured shaft and hydraulic powers, these quantities were utilized to evaluate mechanical energy losses associated with the suction and discharge sections of the fan. (author)

  4. On fan-shaped cold MHD winds from Keplerian accretion discs

    E-Print Network [OSTI]

    Ferreira, Jonathan

    2012-01-01T23:59:59.000Z

    We investigate under which conditions cold, fan-shaped winds can be steadily launched from thin (Keplerian) accretion discs. Such winds are magneto-centrifugal winds launched from a thin annulus in the disc, along open magnetic field lines that fan out above the disc. In principle, such winds could be found in two situations: (1) at the interface between an inner Jet Emitting Disc, which is itself powering magneto-centrifugally driven winds, and an outer standard accretion disc; (2) at the interface between an inner closed stellar magnetosphere and the outer standard accretion disc. We refer to Terminal or T-winds to the former kind and to Magnetospheric or M-winds to the latter. The full set of resistive and viscous steady state MHD equations are analyzed for the disc (the annulus), which allow us to derive general expressions valid for both configurations. We find that, under the framework of our analysis, the only source of energy able to power any kind of fan-shaped winds is the viscous transport of rotat...

  5. Hydronic Heating Coil Versus Propane Furnace, Rehoboth Beach, Delaware (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-01-01T23:59:59.000Z

    Insight Homes constructed two houses in Rehoboth Beach, Delaware, with identical floor plans and thermal envelopes but different heating and domestic hot water (DHW) systems. Each house is 1,715-ft2 with a single story, three bedrooms, two bathrooms, and the heating, ventilation, and air conditioning (HVAC) systems and ductwork located in conditioned crawlspaces. The standard house, which the builder offers as its standard production house, uses an air source heat pump (ASHP) with supplemental propane furnace heating. The Building America test house uses the same ASHP unit with supplemental heat provided by the DHW heater (a combined DHW and hydronic heating system, where the hydronic heating element is in the air handler). Both houses were occupied during the test period. Results indicate that efficiency of the two heating systems was not significantly different. Three issues dominate these results; lower system design performance resulting from the indoor refrigerant coil selected for the standard house, an incorrectly functioning defrost cycle in the standard house, and the low resolution of the natural gas monitoring equipment. The thermal comfort of both houses fell outside the ASHRAE Standard 55 heating range but was within the ACCA room-to-room temperature range when compared to the thermostat temperature. The monitored DHW draw schedules were input into EnergyPlus to evaluate the efficiency of the tankless hot water heater model using the two monitored profiles and the Building America House Simulation Protocols. The results indicate that the simulation is not significantly impacted by the draw profiles.

  6. Using coiled tubing in HP/HT corrosive gas wells

    SciTech Connect (OSTI)

    NONE

    1997-06-01T23:59:59.000Z

    High-yield-strength (100,000 psi) coiled tubing (CT) material has allowed for CT intervention in Mobile Bay Norphlet completions. These wells are approximately 22,000-ft-vertical-depth, high-pressure, hydrogen sulfide (H{sub 2}S) gas wells. Operations performed on the Norphlet wells include a scale cleanout to approximately 22,000 ft, a hydrochloric acid (HCl) job at 415 F, and buildup removal from a safety valve. The scale cleanout was performed first with a spiral wash tool. The well was killed with 10-lbm/gal sodium bromide (NaBr) brine; the same brine was used for cleanout fluid. Cost savings of 60% were realized. A HCl matrix acid job at 415 F was performed next, followed by a scale cleanout across the downhole safety valve. The safety valve was cleared of debris in 1 operational day. Estimated cost of the CT operation was 5 to 10% less than that of a rig workover. The 100,000-psi-yield Ct material used for the Mobile Bay operations does not comply with the (NACE) Standard MR-0175. But on the basis of extensive laboratory testing by the CT manufacturer, the decision was made that the material would pass a modified test performed with decreased H{sub 2}S levels. A maximum level of 400 ppm H{sub 2}S was determined as the safe working limit. Because the maximum H{sub 2}S content in the wells described later was 120 ppm, the risk of sulfide-stress cracking (SSC) was considered acceptably low. Elevated bottomhole temperatures (BHT`s) increase the corrosion rate of metals exposed to corrosives. Extensive laboratory testing of corrosion inhibitors allowed for design of a matrix-acidizing treatment to remove near-wellbore damage caused by lost zinc bromide (ZnBr) completion brine.

  7. Studies of high-field sections of a muon helical cooling channel with coil separation

    SciTech Connect (OSTI)

    Lopes, M.L.; Kashikhin, V.S.; Yonehara, K.; Yu, M.; Zlobin, A.V.; /Fermilab

    2011-03-01T23:59:59.000Z

    The Helical Cooling Channel (HCC) was proposed for 6D cooling of muon beams required for muon collider and some other applications. HCC uses a continuous absorber inside superconducting magnets which produce solenoidal field superimposed with transverse helical dipole and helical gradient fields. HCC is usually divided into several sections each with progressively stronger fields, smaller aperture and shorter helix period to achieve the optimal muon cooling rate. This paper presents the design issues of the high field section of HCC with coil separation. The effect of coil spacing on the longitudinal and transverse field components is presented and its impact on the muon cooling discussed. The paper also describes methods for field corrections and their practical limits. The magnetic performance of the helical solenoid with coil separation was discussed in this work. The separation could be done in three different ways and the performances could be very different which is important and should be carefully described during the beam cooling simulations. The design that is currently being considered is the one that has the poorest magnetic performance because it presents ripples in all three components, in particular in the helical gradient which could be quite large. Moreover, the average gradient could be off, which could affect the cooling performance. This work summarized methods to tune the gradient regarding the average value and the ripple. The coil longitudinal thickness and the helix period can be used to tune G. Thinner coils tend to reduce the ripples and also bring G to its target value. However, this technique reduces dramatically the operational margin. Wider coils can also reduce the ripple (not as much as thinner coils) and also tune the gradient to its target value. Longer helix periods reduce ripple and correct the gradient to the target value.

  8. Concentrating Electric and Thermal Fields Simultaneously Using Fan-shaped Structure

    E-Print Network [OSTI]

    Lan, Chuwen; Zhou, Ji

    2015-01-01T23:59:59.000Z

    Recently, considerable attention has been focused on the transformation optics and metamaterial due to their fascinating phenomena and potential applications. Concentrator is one of the most representative ones, which however is limited in single physical domain. Here we propose and give the experimental demonstration of bifunctional concentrator that can concentrate electric and thermal fields into a given region simultaneously while keeping the external fields undistorted. Fan-shaped structure composed of alternating wedges made of two kinds of natural materials is proposed to achieve this goal. The simulation and experimental results show good agreement, thereby confirming the feasibility of our scheme.

  9. Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-10-01T23:59:59.000Z

    In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. Four air-based HVAC distribution systems were assessed:-a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, a system with transfer fans to the bedrooms, and a system with no ductwork to the bedrooms. The relative ability of each system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability, respectively.

  10. Interpreting Soap Operas and Creating Community: Inside a Computer-Mediated Fan Culture

    E-Print Network [OSTI]

    Baym, Nancy K.

    1993-11-01T23:59:59.000Z

    Research, Vol. 30(2/3), 143-176. Publisher’s official version: Open Access version: Computer-Mediated Fans -- 22 Performance If genre is the "what" of recurrent forms of speech, performance is the "how" (Hymes, 1975, pg. 351). In this section I turn... such community. Rec.arts.tv.soaps ("r.a.t.s.") is a highly successful computer-mediated discussion group ("newsgroup") which discusses American daytime television soap operas. R.a.t.s. is distributed in the form of electronic messages through the Usenet...

  11. A study in animation and visualization: consolidation of the Mississippi Fan

    E-Print Network [OSTI]

    Parmley, Kelly Lynn

    1992-01-01T23:59:59.000Z

    of MASTER OF SCIENCE December 1992 Major Subject: Computer Science A STUDY IN ANIMATION AND VISUALIZATION: CONSOLIDATION OF THE MISSISSIPPI FAN A Thesis by KELLY LYNN PARMLEY Approved as to style and content by: Glen N. Williams (Chair of Committee... and effort expended, Malia Martin, Derek Spears, Debbie Carlson and Neal McDonald for help with portions of the research, and Dr. Childs, Susan Mengel, and Clay Williams for help in generating the LaTEX document. Thanks also go to Willis Marti, Donna...

  12. Sniffing by a silkworm moth: Wing fanning enhances air penetration through and pheromone interception by antennae

    E-Print Network [OSTI]

    Loudon, Catherine; Koehl, M. A. R.

    2000-10-01T23:59:59.000Z

    was measured on video recordings (described below); the mean distance between the wire and the antennal bases was 4.7 mm (range 2.8–6.1 mm, N=15), and the mean distance from the wire to the closest antennal tip was 3.1 mm (range 0.8–5.1 mm, N=15) during... motion a A Wing length B Stroke angle C Angle of attack 1 cm 2980 Video recordings of wing fanning A Panasonic Palmcorder (model PV-562) was used to make video recordings (SVHS) of the wing motions of the 15 male moths described above under...

  13. Turning on the Fan and Turning off the A/C | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssuesEnergyTransportation WorkDecember 28, 2004 PartTurning on the Fan

  14. Magnetic-field sensing coil embedded in ceramic for measuring ambient magnetic field

    DOE Patents [OSTI]

    Takahashi, Hironori

    2004-02-10T23:59:59.000Z

    A magnetic pick-up coil for measuring magnetic field with high specific sensitivity, optionally with an electrostatic shield (24), having coupling elements (22) with high winding packing ratio, oriented in multiple directions, and embedded in ceramic material for structural support and electrical insulation. Elements of the coil are constructed from green ceramic sheets (200) and metallic ink deposited on surfaces and in via holes of the ceramic sheets. The ceramic sheets and the metallic ink are co-fired to create a monolithic hard ceramic body (20) with metallized traces embedded in, and placed on exterior surfaces of, the hard ceramic body. The compact and rugged coil can be used in a variety of environments, including hostile conditions involving ultra-high vacuum, high temperatures, nuclear and optical radiation, chemical reactions, and physically demanding surroundings, occurring either individually or in combinations.

  15. The low frequency 2D vibration sensor based on flat coil element

    SciTech Connect (OSTI)

    Djamal, Mitra; Sanjaya, Edi; Islahudin; Ramli [Department of Physics, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40116 (Indonesia); Department of Physics, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40116 (Indonesia) and Department of Physics, UIN Syarif Hidayatullah, Jl. Ir.H. Djuanda 95 Ciputat 15412 (Indonesia); MTs NW Nurul Iman Kembang Kerang, Jl. Raya Mataram - Lb.Lombok, NTB (Indonesia); Department of Physics, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40116 (Indonesia) and Department of Physics,Universitas Negeri Padang, Jl. Prof. Hamka, Padang 25132 (Indonesia)

    2012-06-20T23:59:59.000Z

    Vibration like an earthquake is a phenomenon of physics. The characteristics of these vibrations can be used as an early warning system so as to reduce the loss or damage caused by earthquakes. In this paper, we introduced a new type of low frequency 2D vibration sensor based on flat coil element that we have developed. Its working principle is based on position change of a seismic mass that put in front of a flat coil element. The flat coil is a part of a LC oscillator; therefore, the change of seismic mass position will change its resonance frequency. The results of measurements of low frequency vibration sensor in the direction of the x axis and y axis gives the frequency range between 0.2 to 1.0 Hz.

  16. Crowding of Polymer Coils and Demixing in Nanoparticle-Polymer Mixtures

    E-Print Network [OSTI]

    Ben Lu; Alan R. Denton

    2011-06-24T23:59:59.000Z

    The Asakura-Oosawa-Vrij (AOV) model of colloid-polymer mixtures idealizes nonadsorbing polymers as effective spheres that are fixed in size and impenetrable to hard particles. Real polymer coils, however, are intrinsically polydisperse in size (radius of gyration) and may be penetrated by smaller particles. Crowding by nanoparticles can affect the size distribution of polymer coils, thereby modifying effective depletion interactions and thermodynamic stability. To analyse the influence of crowding on polymer conformations and demixing phase behaviour, we adapt the AOV model to mixtures of nanoparticles and ideal, penetrable polymer coils that can vary in size. We perform Gibbs ensemble Monte Carlo simulations, including trial nanoparticle-polymer overlaps and variations in radius of gyration. Results are compared with predictions of free-volume theory. Simulation and theory consistently predict that ideal polymers are compressed by nanoparticles and that compressibility and penetrability stabilise nanoparticle-polymer mixtures.

  17. A novel design of iron dominated superconducting multipole magnets with circular coils

    SciTech Connect (OSTI)

    Kashikhin, Vladimir; /Fermilab

    2009-10-01T23:59:59.000Z

    Linear accelerators based on superconducting magnet technology use a large number of relatively weak superconducting quadrupoles. In this case an iron dominated quadrupole is the most cost effective solution. The field quality in this magnet is defined by iron poles; the magnet air gap is minimal as are coil ampere-turns. Nevertheless, it has long racetrack type coils, which must be rigid and fixed by a mechanical structure to provide the needed mechanical stability. The novel concept of using circular superconducting coils in such a quadrupole type is described, with a discussion of quadrupole parameters, and results of 3D magnetic designs. Variants of short and long sectional quadrupoles and multipoles are presented.

  18. Refurbishment and Testing of the 1970's Era LASS Solenoid Coils for JLab's Hall D

    SciTech Connect (OSTI)

    Anumagalla, Ravi; Biallas, George; Brindza, Paul; Carstens, Thomas; Creel, Jonathan; Egiyan, Hovanes; Martin, Floyd; Qiang, Yi; Spiegel, Scot; Stevens, Mark; Wissmann, Mark

    2012-07-01T23:59:59.000Z

    JLab refurbished the LASS1, 1.85 m bore Solenoid, consisting of four superconducting coils to act as the principal analysis magnet for nuclear physics in the newly constructed, Hall D at Jefferson Lab. The coils, built in 1971 at Stanford Linier Accelerator Center and used a second time at the MEGA Experiment at Los Alamos, had electrical shorts and leaks to the insulating vacuum along with deteriorated superinsulation & instrumentation. Root cause diagnosis of the problems and the repair methods are described along with the measures used to qualify the vessels and piping within the Laboratory's Pressure Safety Program (mandated by 10CFR851). The extraordinary refrigerator operational methods used to utilize the obsolete cryogenic apparatus gathered for the off-line, single coil tests are described.

  19. Development of Radar Navigation and Radio Data Transmission for Microhole Coiled Tubing Bottom Hole Assemblies

    SciTech Connect (OSTI)

    Larry G. Stolarczyk; Gerald L. Stolarczyk; Larry Icerman; John Howard; Hooman Tehrani

    2007-03-25T23:59:59.000Z

    This Final Technical Report summarizes the research and development (R&D) work performed by Stolar Research Corporation (Stolar) under U.S. Department of Energy (DOE) Contract Number DE-FC26-04NT15477. This work involved the development of radar navigation and radio data transmission systems for integration with microhole coiled tubing bottom hole assemblies. Under this contract, Stolar designed, fabricated, and laboratory and field tested two advanced technologies of importance to the future growth of the U.S. oil and gas industry: (1) real-time measurement-while-drilling (MWD) for guidance and navigation of coiled tubing drilling in hydrocarbon reservoirs and (2) two-way inductive radio data transmission on coiled tubing for real-time, subsurface-to-surface data transmission. The operating specifications for these technologies are compatible with 3.5-inch boreholes drilled to a true vertical depth (TVD) of 5,000 feet, which is typical of coiled tubing drilling applications. These two technologies (i.e., the Stolar Data Transmission System and Drill String Radar) were developed into pre-commercial prototypes and tested successfully in simulated coiled tubing drilling conditions. Integration of these two technologies provides a real-time geosteering capability with extremely quick response times. Stolar is conducting additional work required to transition the Drill String Radar into a true commercial product. The results of this advanced development work should be an important step in the expanded commercialization of advanced coiled tubing microhole drilling equipment for use in U.S. hydrocarbon reservoirs.

  20. Vacuum Induction Melting Unit Induction heating is a process wherein induced eddy currents heat conductive materials. This heating

    E-Print Network [OSTI]

    Subramaniam, Anandh

    Vacuum Induction Melting Unit Induction heating is a process wherein induced eddy currents heat field and circulating eddy currents are induced within the metals. Flow of eddy currents leads an AC current through a water cooled copper coil and a metallic charge is placed in a ceramic (or

  1. Design, Construction and Test of Cryogen-Free HTS Coil Structure

    SciTech Connect (OSTI)

    Hocker, H.; Anerella, M.; Gupta, R.; Plate, S.; Sampson, W.; Schmalzle, J.; Shiroyanagi, Y.

    2011-03-28T23:59:59.000Z

    This paper will describe design, construction and test results of a cryo-mechanical structure to study coils made with the second generation High Temperature Superconductor (HTS) for the Facility for Rare Isotope Beams (FRIB). A magnet comprised of HTS coils mounted in a vacuum vessel and conduction-cooled with Gifford-McMahon cycle cryocoolers is used to develop and refine design and construction techniques. The study of these techniques and their effect on operations provides a better understanding of the use of cryogen free magnets in future accelerator projects. A cryogen-free, superconducting HTS magnet possesses certain operational advantages over cryogenically cooled, low temperature superconducting magnets.

  2. DC characterization and 3D modelling of a triangular, epoxy-impregnated high temperature superconducting coil.

    E-Print Network [OSTI]

    Hu, D.; Ainslie, M. D.; Rush, J. P.; Durrell, J. H.; Zou, J.; Raine, M. J.; Hampshire, D. P.

    2015-04-24T23:59:59.000Z

    of HTS coils wound from YBCO coated conductors for the stator winding of the machine. A triangular-shaped HTS coil is one of the test candidates of this superconducting stator, which is commonly used, along with trapezoidal and circular designs... process included a 10 bar overpressure with nitrogen gas, which was maintained for 4-5 hours before rotary baking. The resin used was stycast W19 with catalyst 11 in the ratio of 100:17. The specifications of the HTS coated conductor used [41...

  3. A design for a high voltage magnet coil ringer test set

    SciTech Connect (OSTI)

    Koska, W. [Fermi National Accelerator Lab., Batavia, IL (United States); Sims, R.E. [Superconducting Super Collider Lab., Dallas, TX (United States)

    1992-04-01T23:59:59.000Z

    By discharging a bank of charged capacitors through a high power SCR switch into an SSC dipole magnet assembly, it is possible to ``ring`` the coil and develop a voltage stress of greater than 50 volts turn-to-turn, thereby verifying the insulation integrity. We will present an overview of the test set design for a 2 kV isolated SCR firing circuit, including safety features, selectable capacitor banks, and digital waveform storage system. Results from testing typical coils and magnets will be included. Possible upgrades are also discussed.

  4. A design for a high voltage magnet coil ringer test set

    SciTech Connect (OSTI)

    Koska, W. (Fermi National Accelerator Lab., Batavia, IL (United States)); Sims, R.E. (Superconducting Super Collider Lab., Dallas, TX (United States))

    1992-04-01T23:59:59.000Z

    By discharging a bank of charged capacitors through a high power SCR switch into an SSC dipole magnet assembly, it is possible to ring'' the coil and develop a voltage stress of greater than 50 volts turn-to-turn, thereby verifying the insulation integrity. We will present an overview of the test set design for a 2 kV isolated SCR firing circuit, including safety features, selectable capacitor banks, and digital waveform storage system. Results from testing typical coils and magnets will be included. Possible upgrades are also discussed.

  5. Endovascular Treatment of a Coronary Artery Bypass Graft to Pulmonary Artery Fistula with Coil Embolization

    SciTech Connect (OSTI)

    Nielson, Jeffery L., E-mail: nielson@uhrad.com; Kang, Preet S. [University Hospitals of Cleveland and Veterans Administration Medical Center-Cleveland, Case Western Reserve University, Departments of Radiology (United States)

    2006-04-15T23:59:59.000Z

    Fistula formation between a coronary artery bypass graft (CABG)and the pulmonary arterial circulation represents a rare cause of recurrent angina in patients following bypass grafting. Therapy has traditionally involved surgical ligation by open thoracotomy. We describe a case of left internal mammary artery-left upper lobe pulmonary artery fistula presenting as early recurrent angina following CABG. The fistula was embolized using platinum coils, resulting in symptomatic relief and improvement in myocardial perfusion on cardiac perfusion scintigraphy. Coil embolization should be considered a therapeutic option in patients with coronary-pulmonary steal syndrome.

  6. Congenital Aorto-azygous Fistula Treated with Coil Embolization: Case Report and Review of the Literature

    SciTech Connect (OSTI)

    Romero, Francisco Diaz [Hospital Universitario de Canarias, Department of Radiology, Section of Vascular and Interventional Radiology (Spain); Fernandez, Eudaldo M. Lopez-Tomassetti [Hospital Universitario de Canarias, Department of Surgery (Spain)], E-mail: drtomassetti@wanadoo.es; Albelo, Tomas Perez; Gonzalez, Helio Valles [Hospital Universitario de Canarias, Department of Radiology, Section of Vascular and Interventional Radiology (Spain); Gonzalez, Ivan Arteaga [Hospital Universitario de Canarias, Department of Surgery (Spain)

    2006-10-15T23:59:59.000Z

    Arteriovenous fistulas between the aorta and the azygous vein usually manifest as a continuous audible murmur mimicking a patent ductus arteriosus when observed at birth. Symptoms when present during childhood are related to dyspnea or cardiac insufficiency. Embolotherapy of congenital vascular malformations is possible. However when this less invasive treatment fails, surgical treatment is sometimes necessary. We describe the case of a 12-year-old child with a large thoracic arteriovenous fistula between the descending thoracic aorta and the azygous vein, which was closed successfully by coil embolization. Available data in the literature suggest that coil embolization of aorto-azygous fistulas is usually successful.

  7. Experimental demonstration of a compact stellarator magnetic trap using four circular coils

    SciTech Connect (OSTI)

    Pedersen, T. Sunn; Kremer, J.P.; Lefrancois, R.G.; Marksteiner, Q.; Sarasola, X.; Ahmad, N. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States); University of California-Berkeley, Berkeley, California 94720 (United States)

    2006-01-15T23:59:59.000Z

    An experimental demonstration of a compact stellarator magnetic trap created from four circular coils is presented. The coil manufacturing and assembly tolerances were on the order of 0.5-1%, far less stringent than most other stellarators. The simplicity, loose mechanical tolerances, and low cost of the trap design makes it feasible for stellarators to be used for a variety of novel physics experiments, in addition to their present use for magnetic confinement fusion. The experiment, the Columbia Non-neutral Torus, has several other desirable features such as no significant internal island chains and the lowest aspect ratio, A{<=}1.9, of any stellarator built to date.

  8. Tankless Coil and Indirect Water Heaters | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium Transferon the PassingRouting TECFinish Line |PaulTableUnitedTankless

  9. Web-based Support Systems for Sustainable Communities W.N. Liu J.T. Yao L. Fan Y.Y. Yao X.D. Yang

    E-Print Network [OSTI]

    Yao, JingTao

    present an architecture of Web-based support systems for sustainable communities. The architectureWeb-based Support Systems for Sustainable Communities W.N. Liu J.T. Yao L. Fan Y.Y. Yao X.D. Yang,fan,yyao,yang}@cs.uregina.ca ABSTRACT This paper studies Web-based support systems for sustain- able communities. A sustainable

  10. Experimental study of blade thickness effects on the overall and local performances of a Controlled Vortex Designed axial-flow fan

    E-Print Network [OSTI]

    Boyer, Edmond

    the dissipation of energy in the von K´arm´an street behind the blades so that the per- formances of the fan Vortex Designed axial-flow fan C. Sarrafa , H. Nouria , F. Raveleta, , F. Bakira aArts et Metiers Paris

  11. An Improved Simple Chilled Water Cooling Coil Author(s), Liping Wang, Philip Haves and Fred Buhl

    E-Print Network [OSTI]

    of cooling and dehumidification coil performance is important in model-based fault detection behavior is needed to assess local loop control performance while steady state modeling is generally sufficient for energy calculations. Recent work on coil modeling has focused on modeling dynamic response

  12. 1150 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 39, NO. 9, SEPTEMBER 2003 Modeling of the ElectriCOIL System

    E-Print Network [OSTI]

    Carroll, David L.

    ) Traditionally, this pumping reaction is fed by a liquid chem- istry singlet oxygen generator (SOG). However discharge oxygen-iodine laser (ElectriCOIL) system. Results of those studies along with more recent Terms--Chemical oxygen-iodine laser, chemical oxygen- iodine laser (COIL), discharge oxygen-iodine laser

  13. A Sliding Ring Coil for Neuroimaging at 21.1 T Gregory S. Boebinger, National High Magnetic Field Laboratory

    E-Print Network [OSTI]

    Weston, Ken

    A Sliding Ring Coil for Neuroimaging at 21.1 T Gregory S. Boebinger, National High Magnetic Field interference; and 4. anesthesia & vacuum lines for animal care. #12;A Sliding Ring Coil for Neuroimaging at 21 sliding tuner ring for neuroimaging in high field vertical magnets: Ex and in vivo applications at 21.1 T

  14. Endovascular Treatment of Spontaneous Isolated Dissecting Aneurysm of the Superior Mesenteric Artery Using Stent-Assisted Coil Embolization

    SciTech Connect (OSTI)

    Ozaki, Toshiro [Graduate School of Medical and Dental Sciences, Niigata University, Department of Radiation Oncology (Japan)], E-mail: tochi@med.niigata-u.ac.jp; Kimura, Motomasa [School of Health Sciences, Faculty of Medicine, Niigata University, Department of Radiological Technology (Japan); Yoshimura, Norihiko; Hori, Yoshiro; Takano, Toru; Kamura, Takesi; Yamamoto, Satoshi; Sasai, Keisuke [Graduate School of Medical and Dental Sciences, Niigata University, Department of Radiation Oncology (Japan)

    2006-06-15T23:59:59.000Z

    Spontaneous isolated dissecting aneurysm of the main trunk of the superior mesenteric artery is a rare condition. We treated a patient with this condition successfully by stent-assisted coil embolization. Intravascular stent placement may widen the indications for endovascular coiling of the aneurysmal false lumen to avoid perforation.

  15. Off-resonance and detuned surface coils for B? inhomogeneity in 7-Tesla MRI

    E-Print Network [OSTI]

    Zakszewski, Elizabeth K

    2006-01-01T23:59:59.000Z

    A problem with high-field MRI is the lack of B1 homogeneity, particularly signal cancellation in the outer parts of the head. Here we attempt to correct this by adding surface coils. To adjust the mutual coupling, we vary ...

  16. HIDDEN DAMAGE DETECTION FOR MAIN CABLES OF SUSPENSION BRIDGES INCORPORATING DC MAGNETIZATION WITH A SEARCH COIL-

    E-Print Network [OSTI]

    Boyer, Edmond

    with artificially inflicted broken wires. KEYWORDS : Cable NDE, Search coil, Total flux, DC magnetization, Damage. To overcome this limitation, this study proposes a noncontact cable inspection system incorporating been applied for the inspection of steel cables for ski lifts, elevators, and for other applications

  17. Mechanical Nanosprings: Induced Coiling and Uncoiling of Ultrathin Au Cuicui Liu,

    E-Print Network [OSTI]

    Xing, Bengang

    functions. Coiled springs are elastic metal objects with structural memory. Their ability to store by modulating the contraction of encapsulating shells made of polystyrene-block-poly(acrylic acid) (PSPAA a facile route to fabricate uniform shells on various types of nanoparticles, where PS blocks attach

  18. Interface modification in an immiscible rod-coil polymer blend using functionalized copolymers and polyelectrolytes 

    E-Print Network [OSTI]

    Passinault, Robbie J

    1996-01-01T23:59:59.000Z

    Blends of rod-like and flexible-coil polymers are attractive for synthesizing molecular composites. In this study, a blend of a rod-like polymer (Vectra B950) and a flexible polymer (polystyrene) is used to investigate the influence of polymer-polymer...

  19. VOICE-COILS AS RECIPROCAL TRANSDUCERS IN STRUCTURAL HEALTH MONITORING APPLICATIONS

    E-Print Network [OSTI]

    Boyer, Edmond

    VOICE-COILS AS RECIPROCAL TRANSDUCERS IN STRUCTURAL HEALTH MONITORING APPLICATIONS Patrik Fröjd in a seismic network for structural health monitoring purposes, transmitting relatively undamped low frequency for structural health monitoring of such structures are probably modal analysis of bending modes and Acoustic

  20. Reinforcement Learning, Neural Networks and PI Control Applied to a Heating Coil

    E-Print Network [OSTI]

    Kretchmar, R. Matthew

    situations, the degree of uncertainty in the model of the system being controlled limits the utility networks. Section 3 describes how a simple inverse model can be used to train a neural-network controller performance. 2 Heating Coil Model and PI Control Underwood and Crawford [9] developed a model of an existing

  1. Synthesis of Reinforcement Learning, Neural Networks, and PI Control Applied to a Simulated Heating Coil

    E-Print Network [OSTI]

    Anderson, Charles W.

    in sub-optimal control performance. In many situations, the degree of uncertainty in the model the control using neural networks. Section 3 describes how a simple inverse model can be used to train it results in improved performance. 2 Heating Coil Model and PI Control Underwoodand Crawford10 developeda

  2. Coil-helix transition of polypeptide at water-lipid interface

    E-Print Network [OSTI]

    Ganga P. Sharma; Yana K. Reshetnyak; Oleg A. Andreev; Michael Karbach; Gerhard Müller

    2015-01-08T23:59:59.000Z

    We present the exact solution of a microscopic statistical mechanical model for the transformation of a long polypeptide between an unstructured coil conformation and an $\\alpha$-helix conformation. The polypeptide is assumed to be adsorbed to the interface between a polar and a non-polar environment such as realized by water and the lipid bilayer of a membrane. The interfacial coil-helix transformation is the first stage in the folding process of helical membrane proteins. Depending on the values of model parameters, the conformation changes as a crossover, a discontinuous transition, or a continuous transition with helicity in the role of order parameter. Our model is constructed as a system of statistically interacting quasiparticles that are activated from the helix pseudo-vacuum. The particles represent links between adjacent residues in coil conformation that form a self-avoiding random walk in two dimensions. Explicit results are presented for helicity, entropy, heat capacity, and the average numbers and sizes of both coil and helix segments.

  3. BPO Inputs to ITER Design Review on Pellet Pacing, RMP and RWM Coils,

    E-Print Network [OSTI]

    BPO Inputs to ITER Design Review on Pellet Pacing, RMP and RWM Coils, and Disruption Mitigation Collaboration Essential Ingredient Contributions to Pellet Pacing USBPO: L. Baylor and P. Parks EU: P. Lang, A the acceptable energy loss from ELMs. Reducing the energy loss to pellet pacing is challenging. DIII

  4. Corrosion of Aluminum-fin, Copper-tube Heat Exchange Coils

    E-Print Network [OSTI]

    Field, J. E.

    2002-01-01T23:59:59.000Z

    Over the past several years the HVAC industry has experienced a large increase in instances of leaks in the central portion of aluminum-finned, coppertube heat exchange coils. These leaks are characterized as being very small in size and very high...

  5. ENVIRONMENTALLY BENIGN LINERLESS SELF-ADHESIVE COIL STAMPS: R&D AND RECYCLING STUDIES

    E-Print Network [OSTI]

    Abubakr, Said

    ENVIRONMENTALLY BENIGN LINERLESS SELF-ADHESIVE COIL STAMPS: R&D AND RECYCLING STUDIES Kim K been easy and quick to use, and have offered consistent adhesion. For recyclers, however, these adhesive stamps have caused concern for their paper recycling processes. In addition, there is the issue

  6. Self-Assembled Nanostructures of Rod-Coil Diblock Copolymers with Different Rod Lengths

    E-Print Network [OSTI]

    Wan, Xin-hua

    melts1-5 or in a selective solvent.5-9 As the former is yet to be fully exploited, the latter, the self of the block copolymers in p-xylene, which is a good solvent for the PS coils and a selective solvent for the PMPCS rods, was studied by dynamic and static laser light scattering (LLS) and transmission electron

  7. Reduced electron temperature in a magnetized inductively-coupled plasma with internal coil

    SciTech Connect (OSTI)

    Arancibia Monreal, J.; Chabert, P. [LPP, CNRS, Ecole Polytechnique, UPMC, Paris XI, 91128 Palaiseau (France)] [LPP, CNRS, Ecole Polytechnique, UPMC, Paris XI, 91128 Palaiseau (France); Godyak, V. [RF Plasma Consulting, Brookline, Massachusetts 02446 (United States) [RF Plasma Consulting, Brookline, Massachusetts 02446 (United States); Michigan Institute for Plasma Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2013-10-15T23:59:59.000Z

    The effect of magnetic filtering on the electron energy distribution function is studied in an inductive discharge with internal coil coupling. The coil is placed inside the plasma and driven by a low-frequency power supply (5.8 MHz) which leads to a very high power transfer efficiency. A permanent dipole magnet may be placed inside the internal coil to produce a static magnetic field around 100 Gauss. The coil and the matching system are designed to minimize the capacitive coupling to the plasma. Capacitive coupling is quantified by measuring the radiofrequency (rf) plasma potential with a capacitive probe. Without the permanent magnet, the rf plasma potential is significantly smaller than the electron temperature. When the magnet is present, the rf plasma potential increases. The electron energy distribution function is measured as a function of space with and without the permanent magnet. When the magnet is present, electrons are cooled down to low temperature in the downstream region. This region of low electron temperature may be useful for plasma processing applications, as well as for efficient negative ion production.

  8. Massive Hemoptysis from Pulmonary Artery Pseudoaneurysm Caused by Lung Radiofrequency Ablation: Successful Treatment by Coil Embolization

    SciTech Connect (OSTI)

    Yamakado, Koichiro, E-mail: yama@clin.medic.mie-u.ac.jp; Takaki, Haruyuki [Mie University School of Medicine, Department of Radiology (Japan); Takao, Motoshi [Mie University School of Medicine, Department of Thoracic Surgery (Japan); Murashima, Shuichi; Kodama, Hiroshi; Kashima, Masataka; Nakatsuka, Atsuhiro; Uraki, Junji [Mie University School of Medicine, Department of Radiology (Japan); Shimpo, Hideto [Mie University School of Medicine, Department of Thoracic Surgery (Japan); Takeda, Kan [Mie University School of Medicine, Department of Radiology (Japan)

    2010-04-15T23:59:59.000Z

    A 75-year-old man received lung radiofrequency (RF) ablation to treat lung metastases from hepatocellular carcinoma. Massive hemoptysis occurred 1 week after lung RF ablation. Emergent contrast-enhanced CT and pulmonary arteriography revealed a pulmonary artery pseudoaneurysm, which was embolized with coils. The postembolization course was uneventful. Hemoptysis did not recur for 5 months.

  9. Control Method for a 3D Form Display with Coil-type Shape Memory Alloy

    E-Print Network [OSTI]

    Tachi, Susumu

    Control Method for a 3D Form Display with Coil-type Shape Memory Alloy Masashi Nakatani1 , Hiroyuki.t.u-tokyo.ac.jp Abstract - We previously proposed a new 3D form display actuated by shape memory alloy (SMA), which of the shape memory alloy with a simple matrix drive circuit. This type of drive circuit can dramatically

  10. Development and Coil Fabrication for the LARP 3.7-m Long Nb3Sn Quadrupole

    SciTech Connect (OSTI)

    Ambrosio, G.; Andreev, N.; Anerella, M.; Barzi, E.; Bossert, R.; Caspi, S.; Chlachidize, G.; Dietderich, D.; Felice, H.; Ferracin, P.; Ghosh, A.; Hafalia, R.; Hannaford, R.; Jochen, G.; Kashikhin, V.V.; Kovach, P.; Lamm, M.; Lietzke, A.; McInturff, A.; Muratore,, J.; Nobreaga, F.; Novitsky, I.; Peggs, S.; Prestemon, S.; Sabbi, G. L.; Schmalzle, J.; Turrioni, D.; Wanderer, P.; Whitson, G.; Zlobin, A. V.

    2008-08-17T23:59:59.000Z

    The U.S. LHC Accelerator Research Program (LARP) has started the fabrication of 3.7-m long Nb{sub 3}Sn quadrupole models. The Long Quadrupoles (LQ) are 'Proof-of-Principle' magnets which are to demonstrate that Nb{sub 3}Sn technology is mature for use in high energy particle accelerators. Their design is based on the LARP Technological Quadrupole (TQ) models, developed at FNAL and LBNL, which have design gradients higher than 200 T/m and an aperture of 90 mm. The plans for the LQ R&D and a design update are presented and discussed in this paper. The challenges of fabricating long accelerator-quality Nb{sub 3}Sn coils are presented together with the solutions adopted for the LQ coils (based on the TQ experience). During the fabrication and inspection of practice coils some problems were found and corrected. The fabrication at BNL and FNAL of the set of coils for the first Long Quadrupole is in progress.

  11. Development and coil fabrication for the LARP 3.7-m long Nb3Sn quadruple

    SciTech Connect (OSTI)

    Ambrosio, G.; Andreev, N.; Anerella, M.; Barzi, E.; Bossert, R.; Caspi, S.; Chlachidize, G.; Dietderich, D.; Felice, H.; Ferracin, P.; Ghosh, A.; /Fermilab /Brookhaven /LBL, Berkeley /Texas A-M

    2009-02-01T23:59:59.000Z

    The U.S. LHC Accelerator Research Program (LARP) has started the fabrication of 3.7-m long Nb{sub 3}Sn quadrupole models. The Long Quadrupoles (LQ) are 'Proof-of-Principle' magnets which are to demonstrate that Nb3Sn technology is mature for use in high energy particle accelerators. Their design is based on the LARP Technological Quadrupole (TQ) models, developed at FNAL and LBNL, which have design gradients higher than 200 T/m and an aperture of 90 mm. The plans for the LQ R&D and a design update are presented and discussed in this paper. The challenges of fabricating long accelerator-quality Nb{sub 3}Sn coils are presented together with the solutions adopted for the LQ coils (based on the TQ experience). During the fabrication and inspection of practice coils some problems were found and corrected. The fabrication at BNL and FNAL of the set of coils for the first Long Quadrupole is in progress.

  12. Dirty Air Conditioners: Energy Implications of Coil Fouling Jeffrey Siegel, Lawrence Berkeley National Laboratory/ UC Berkeley

    E-Print Network [OSTI]

    Siegel, Jeffrey

    . For typical residential heat pump and air conditioning Residential Buildings: Technologies, Design heat pump condenser coil will foul sufficiently to cause a 20 % reduction in performance over a 4 to 7 is based on a model of heat exchanger fouling that we developed specifically for residential heat

  13. Dirty Air Conditioners: Energy Implications of Coil Fouling Jeffrey Siegel, Lawrence Berkeley National Laboratory/ UC Berkeley

    E-Print Network [OSTI]

    . For typical residential heat pump and air conditioning #12;systems, they predict a 10 ­ 25 % average energy heat pump condenser coil will foul sufficiently to cause a 20 % reduction in performance over a 4 to 7 is based on a model of heat exchanger fouling that we developed specifically for residential heat

  14. Corrosion of Aluminum-fin, Copper-tube Heat Exchange Coils 

    E-Print Network [OSTI]

    Field, J. E.

    2002-01-01T23:59:59.000Z

    Over the past several years the HVAC industry has experienced a large increase in instances of leaks in the central portion of aluminum-finned, coppertube heat exchange coils. These leaks are characterized as being very small in size and very high...

  15. New robust coil sensors for near field caracterization B.Vincent(1)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : interactions between two variable speed drives or power transformers in the same room ("indoor EMC, magnetic coupling between magnetic components (inductor, transformer) and/or wires are encountered component of the multipolar expansion. Five coil shapes are determined, in order to account for the first

  16. Performance of a Multi-Stream Injection COIL with Starlet Darren M. King1

    E-Print Network [OSTI]

    Carroll, David L.

    . Pressures in the singlet oxygen generator (SOG) were relatively constant with ejector flow rate suggesting generator performance for pressure recovery potential. I. Introduction The chemical oxygen-iodine laser]. Much of the COIL technology development to date has focused on the singlet- oxygen generator (SOG

  17. Development and Transient Analysis of a Helical-coil Steam Generator for High Temperature Reactors

    SciTech Connect (OSTI)

    Nathan V. Hoffer; Nolan A. Anderson; Piyush Sabharwall

    2011-08-01T23:59:59.000Z

    A high temperature gas-cooled reactor (HTGR) is under development by the Next Generation Nuclear Plant (NGNP) Project at the Idaho National Laboratory (INL). Its design emphasizes electrical power production which may potentially be coupled with process heat for hydrogen production and other industrial applications. NGNP is considering a helical-coil steam generator for the primary heat transport loop heat exchanger based on its increased heat transfer and compactness when compared to other steam generators. The safety and reliability of the helical-coil steam generator is currently under evaluation as part of the development of NGNP. Transients, such as loss of coolant accidents (LOCA), are of interest in evaluating the safety of steam generators. In this study, a complete steam generator inlet pipe break (double ended pipe break) LOCA was simulated by an exponential loss of primary side pressure. For this analysis, a model of the helical-coil steam generator was developed using RELAP5-3D, an INL inhouse systems analysis code. The steam generator model behaved normally during the transient simulating the complete steam generator inlet pipe break LOCA. Further analysis is required to comprehensively evaluate the safety and reliability of the helical-coil steam generator design in the NGNP setting.

  18. Splenic Artery Aneurysm of the Anomalous Splenomesenteric Trunk: Successful Treatment by Transcatheter Embolization Using Detachable Coils

    SciTech Connect (OSTI)

    Sato, Motohiro [Ibaraki Prefectural Central Hospital, Department of Radiology (Japan)], E-mail: mo-sato@chubyoin.pref.ibaraki.jp; Anno, Izumi; Yamaguchi, Masayuki [Institute of Clinical Medicine University of Tsukuba, Department of Radiology (Japan); Iida, Hiroyuki; Orii, Kazuo [Tsukuba Gakuen Hospital, Department of Surgery (Japan)

    2006-06-15T23:59:59.000Z

    A splenomesenteric trunk, which involves replacing the splenic artery from the superior mesenteric artery (SMA), is rare and occurs in less than 1% of patients. We report a case of an aneurysm involving the origin of the splenic artery that anomalously arose from the SMA, and which was successfully treated using Guglielmi detachable coils.

  19. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Televisions in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total U.S.1...

  20. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Space Heating in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total...

  1. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Computers and Other Electronics in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings...

  2. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Water Heating in U.S. Homes, by Housing Unit Type, 2009" " Million Housing Units, Final" ,,"Housing Unit Type" ,,"Single-Family Units",,"Apartments in Buildings With" ,"Total...

  3. On Flame-Wall Thermal-Coupling in Micro Combustors Yong Fan, Yuji Suzuki, and Nobuhide Kasagi

    E-Print Network [OSTI]

    Kasagi, Nobuhide

    On Flame-Wall Thermal-Coupling in Micro Combustors Yong Fan, Yuji Suzuki, and Nobuhide Kasagi Department of Mechanical Engineering, The University of Tokyo, Japan Keywords: Micro combustor, Premixed of premixed CH4/Air flame propagation and quenching in three quartz combustors with chamber depth of 0.7 mm, 1

  4. Study of the Effects of Ambient Conditions Upon the Performance of Fan Powered, Infrared Natural Gas Burners

    SciTech Connect (OSTI)

    Clark Atlanta University

    2002-12-02T23:59:59.000Z

    The objective of this investigation was to characterize the operation of a fan-powered, infrared burner (IR burner) at various gas compositions and ambient conditions, develop numerical model to simulate the burner performances, and provide design guidelines for appliances containing PIR burners for satisfactory performance.

  5. Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan and J. R. Manson

    E-Print Network [OSTI]

    Manson, Joseph R.

    Gas-surface scattering with multiple collisions in the physisorption potential well Guoqing Fan The problem of gas-surface collisions is developed in terms of a theoretical formalism that allows calcula gas distributions are considered, a monoenergetic incident beam and an equilibrium gas appropriate

  6. Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer

    E-Print Network [OSTI]

    Zhu, Xiaojin "Jerry"

    Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical prediction performance of our approach. I. INTRODUCTION Air pollution is a significant issue in China

  7. Performance Optimization of a Fan System- Overcoming Impacts of Modified Design Criteria Due to Regulatory Requirements and Changed Operating Conditions

    E-Print Network [OSTI]

    Wroblewski, R. G.; Preis, F.; Smith, R.

    that was applied to address fan inefficiency. Energy savings from optimizing the system are estimated to be 338 kW, nearly half of the original measured input power of 678 kW. The project is currently being implemented and will have a payback period of less than 8...

  8. ECOSystem: Managing Energy as a First Class Operating System Heng Zeng, Xiaobo Fan, Carla Ellis, Alvin Lebeck, and Amin Vahdat

    E-Print Network [OSTI]

    Lebeck, Alvin R.

    ECOSystem: Managing Energy as a First Class Operating System Resource Heng Zeng, Xiaobo Fan focus in this paper is to investigate what role the oper- ating system can play in improving energy as a significant layer in the design of energy efficient computing systems [8]. It is now a widely held view

  9. Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2,

    E-Print Network [OSTI]

    Fan, Shanhui

    Stimulated Emission from a Single Excited Atom in a Waveguide Eden Rephaeli1,* and Shanhui Fan2, 1; published 3 April 2012) We study stimulated emission from an excited two-level atom coupled to a waveguide by the atom, plays a very important role in stimulated emission. Additionally, the temporal duration

  10. Theory of Second-Harmonic Generation in Colloidal Crystals J. P. Huang,* Y. C. Jian, and C. Z. Fan

    E-Print Network [OSTI]

    Huang, Ji-Ping

    Theory of Second-Harmonic Generation in Colloidal Crystals J. P. Huang,* Y. C. Jian, and C. Z. Fan-Kornfeld formulation, we study the effective susceptibility of second-harmonic generation (SHG) in colloidal crystals of second-harmonic generation (SHG); that is, an input (pump) wave can generate another wave with twice

  11. Toward Resilient Security in Wireless Sensor Networks # Hao Yang # , Fan Ye + , Yuan Yuan # , Songwu Lu # , William Arbaugh #

    E-Print Network [OSTI]

    Lu, Songwu

    networks, location­based security, resiliency, node compromise, en­route filtering, key distributionToward Resilient Security in Wireless Sensor Networks # Hao Yang # , Fan Ye + , Yuan Yuan@us.ibm.com {yuanyuan,waa}@cs.umd.edu ABSTRACT Node compromise poses severe security threats in wireless sensor networks

  12. VELOCITY MEASUREMENTS FOR A SOLAR ACTIVE REGION FAN LOOP FROM HINODE/EIS OBSERVATIONS

    SciTech Connect (OSTI)

    Young, P. R. [College of Science, George Mason University, 4400 University Drive, Fairfax, VA 22030 (United States); O'Dwyer, B.; Mason, H. E. [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)

    2012-01-01T23:59:59.000Z

    The velocity pattern of a fan loop structure within a solar active region over the temperature range 0.15-1.5 MK is derived using data from the EUV Imaging Spectrometer (EIS) on board the Hinode satellite. The loop is aligned toward the observer's line of sight and shows downflows (redshifts) of around 15 km s{sup -1} up to a temperature of 0.8 MK, but for temperatures of 1.0 MK and above the measured velocity shifts are consistent with no net flow. This velocity result applies over a projected spatial distance of 9 Mm and demonstrates that the cooler, redshifted plasma is physically disconnected from the hotter, stationary plasma. A scenario in which the fan loops consist of at least two groups of 'strands'-one cooler and downflowing, the other hotter and stationary-is suggested. The cooler strands may represent a later evolutionary stage of the hotter strands. A density diagnostic of Mg VII was used to show that the electron density at around 0.8 MK falls from 3.2 Multiplication-Sign 10{sup 9} cm{sup -3} at the loop base, to 5.0 Multiplication-Sign 10{sup 8} cm{sup -3} at a projected height of 15 Mm. A filling factor of 0.2 is found at temperatures close to the formation temperature of Mg VII (0.8 MK), confirming that the cooler, downflowing plasma occupies only a fraction of the apparent loop volume. The fan loop is rooted within a so-called outflow region that displays low intensity and blueshifts of up to 25 km s{sup -1} in Fe XII {lambda}195.12 (formed at 1.5 MK), in contrast to the loop's redshifts of 15 km s{sup -1} at 0.8 MK. A new technique for obtaining an absolute wavelength calibration for the EIS instrument is presented and an instrumental effect, possibly related to a distorted point-spread function, that affects velocity measurements is identified.

  13. Abstract--The goal of the common coil magnet R&D program at Brookhaven National Laboratory (BNL) is to develop a 12.5

    E-Print Network [OSTI]

    Gupta, Ramesh

    to be evaluated with a rapid throughput in a cost-effective way. Three 10-turn Nb3Sn coils have been built and one HTS coil is under construction. The initial test results of this "React & Wind" 10-turn coil program as a conventional cosine theta design. Index Terms--Accelerators, High Temperature Superconductors, Magnets

  14. A Common Coil Magnet for Testing High Field Superconductors* , J.P. Cozzolino, M.A. Harrison, W.B. Sampson, P.J. Wanderer

    E-Print Network [OSTI]

    Gupta, Ramesh

    . The performance of the magnet is summarized along with test results from insert coils wound from N3 Sn ribbon racetrack shaped coils readily wound from high aspect ratio conductor. In this geometry the magnet has two coil magnet. The turns on the right form one half of the upper and lower dipoles, but are part

  15. Termination unit

    DOE Patents [OSTI]

    Traeholt, Chresten [Frederiksberg, DK; Willen, Dag [Klagshamn, SE; Roden, Mark [Newnan, GA; Tolbert, Jerry C [Carrollton, GA; Lindsay, David [Carrollton, GA; Fisher, Paul W [Heiskell, TN; Nielsen, Carsten Thidemann [Jaegerspris, DK

    2014-01-07T23:59:59.000Z

    This invention relates to a termination unit comprising an end-section of a cable. The end section of the cable defines a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid. The end-parts of the N electrical phases and the end-part of the neutral conductor each comprising at least one electrical conductor and being arranged in the cable concentrically around a core former with a phase 1 located relatively innermost, and phase N relatively outermost in the cable, phase N being surrounded by the neutral conductor, electrical insulation being arrange between neighboring electrical phases and between phase N and the neutral conductor, and wherein the end-parts of the neutral conductor and the electrical phases each comprise a contacting surface electrically connected to at least one branch current lead to provide an electrical connection: The contacting surfaces each having a longitudinal extension, and being located sequentially along the longitudinal extension of the end-section of the cable. The branch current leads being individually insulated from said thermally insulation envelope by individual electrical insulators.

  16. A mobile Magnetic Sensor Unit for the KATRIN Main Spectrometer

    E-Print Network [OSTI]

    Osipowicz, A; Letnev, J; Marte, P; Müller, A; Spengler, A; Unru, A; 10.1088/1748-0221/7/06/T06002

    2012-01-01T23:59:59.000Z

    The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to measure the electron neutrino mass with an unprecedented sensitivity of 0.2 eV/c2, using b decay electrons from tritium decay. For the control of magnetic field in the main spectrometer area of the KATRIN experiment a mobile magnetic sensor unit is constructed and tested at the KATRIN main spectrometer site. The unit moves on inner rails of the support structures of the low field shaping coils which are arranged along the the main spectrometer. The unit propagates on a caterpillar drive and contains an electro motor, battery pack, board electronics, 2 triaxial flux gate sensors and 2 inclination senors. During operation all relevant data are stored on board and transmitted to the master station after the docking station is reached.

  17. An optical fan for light beams for high-precision optical measurements and optical switching

    E-Print Network [OSTI]

    Zhi-Yuan Zhou; Yan Li; Dong-Sheng Ding; Yun-Kun Jiang; Wei Zhang; Shuai Shi; Bao-Sen Shi; Guang-Can Guo

    2014-05-08T23:59:59.000Z

    The polarization and orbital angular momentum properties of light are of great importance in optical science and technology in the fields of high precision optical measurements and high capacity and high speed optical communications. Here we show, a totally new method, based on a combination of these two properties and using the thermal dispersion and electro-optical effect of birefringent crystals, the construction of a simple and robust scheme to rotate a light beam like a fan. Using a computer-based digital image processing technique, we determine the temperature and the thermal dispersion difference of the crystal with high resolution. We also use the rotation phenomenon to realize thermo-optic and electro-optic switches. The basic operating principles for measurement and switching processes are presented in detail. The methods developed here will have wide practical applicability in various fields, including remote sensing, materials science and optical communication networks.

  18. INFLUENCE OF SUPPLY AIR TEMPERATURE ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM ENERGY PERFORMANCE

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    chilled water cooling coil, and supply fan. The fan is aspecify the VAV box cooling design supply air temperature (the underfloor supply plenum (thereby, reducing room cooling

  19. Vacuum Studies of a Prototype Composite Coil Dewar for HTSC Transformers

    SciTech Connect (OSTI)

    Schwenterly, S W [ORNL; Zhang, Y. [Oak Ridge National Laboratory (ORNL); Pleva, E. F. [Waukesha Electric Systems, Waukesha, WI; Rufer, M. [Scorpius Space Launch Co.

    2010-01-01T23:59:59.000Z

    Oak Ridge National Laboratory (ORNL) is collaborating with Waukesha Electric Systems (WES) to develop a high-temperature superconducting (HTSC) utility power transformer with primary and secondary coils cooled by liquid nitrogen. Since the vacuum-insulated cryogenic coil dewar surrounds the magnetic core limb and cannot form a shorted turn, non-conductive materials are required. Two test vessels and a small prototype dewar have been fabricated by Scorpius Space Launch Company with epoxy/fiberglass composites, using their proprietary PRESSURMAXX vessel technology. The effects of pumping time, bakeout temperature, and cryogenic vessel temperature on vacuum outgassing rates have been investigated. Outgassing rates of the individual materials used in vessel construction have also been measured. The results will be scaled up to determine the required pumping capacity for a full-size 25-MVA commercial transformer dewar.

  20. Vacuum Studies of a Prototype Composite Coil Dewar for HTSC Transformers

    SciTech Connect (OSTI)

    Schwenterly, S W [ORNL] [ORNL; Zhang, Y. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Pleva, Ed [Waukesha Electric Systems, Waukesha, WI] [Waukesha Electric Systems, Waukesha, WI; Rufer, M. [Scorpius Space Launch Co.] [Scorpius Space Launch Co.

    2010-01-01T23:59:59.000Z

    Oak Ridge National Laboratory (ORNL) is collaborating with Waukesha Electric Systems (WES) to develop a high-temperature superconducting (HTSC) utility power transformer with primary and secondary coils cooled by liquid nitrogen. Since the vacuuminsulated cryogenic coil dewar surrounds the magnetic core limb and cannot form a shorted turn, non-conductive materials are required. Two test vessels and a small prototype dewar have been fabricated by Scorpius Space Launch Company with epoxy/fiberglass composites, using their proprietary PRESSURMAXX vessel technology. The effects of pumping time, bakeout temperature, and cryogenic vessel temperature on vacuum outgassing rates have been investigated. Outgassing rates of the individual materials used in vessel construction have also been measured. The results will be scaled up to determine the required pumping capacity for a full-size 25-MVA commercial transformer dewar.

  1. Apparatus having inductively coupled coaxial coils for measuring buildup of slay or ash in a furnace

    DOE Patents [OSTI]

    Mathur, Mahendra P. (Pittsburgh, PA); Ekmann, James M. (Bethel Park, PA)

    1989-01-01T23:59:59.000Z

    The buildup of slag or ash on the interior surface of a furnace wall is monitored by disposing two coils to form a transformer which is secured adjacent to the inside surface of the furnace wall. The inductive coupling between the two coils of the transformer is affected by the presence of oxides of iron in the slag or ash which is adjacent to the transformer, and the application of a voltage to one winding produces a voltage at the other winding that is related to the thickness of the slag or ash buildup on the inside surface of the furnace wall. The output of the other winding is an electrical signal which can be used to control an alarm or the like or provide an indication of the thickness of the slag or ash buildup at a remote location.

  2. A nonlinear dynamic model of a once-through, helical-coil steam generator

    SciTech Connect (OSTI)

    Abdalla, M.A. [Oak Ridge Inst. for Science and Education, TN (United States)

    1993-07-01T23:59:59.000Z

    A dynamic model of a once-through, helical-coil steam generator is presented. The model simulates the advanced liquid metal reactor superheated cycle steam generator with a four-region, moving-boundary, drift-flux model. The model is described by a set of nonlinear differential equations derived from the fundamental equations of conversation of mass, energy, and momentum. Sample results of steady-state and transient calculations are presented.

  3. Dehumidification Enhancement of Direct Expansion Systems Through Component Augmentation of the Cooling Coil

    E-Print Network [OSTI]

    Kosar, D.; Swami, M.; Shirey, D.; Raustad, R.; Basarkar, M.

    2006-01-01T23:59:59.000Z

    Dehumidification Enhancement of Direct Expansion Systems Through Component Augmentation of the Cooling Coil Douglas Kosar Muthasamy Swami Richard Raustad Principal Research Engineer Program Director Senior Research Engineer Energy Resources... – for System State Point Performance While sophisticated modeling tools such as EnergyPlus are essential for research of the complex annual cooling simulations of system applications in various building types and climate locations, there is also a need...

  4. Unsteady heat dissipation in accelerator superconducting coils insulated with porous ceramic insulation in normal and supercritical helium conditions

    SciTech Connect (OSTI)

    Pietrowicz, S. [Department of Thermodynamics, Institute of Power Engineering and Fluid Mechanics, Wroc?aw University of Technology, Wybrze?e Wyspia?skiego 27, 50 - 370 Wroc?aw (Poland); Four, A.; Baudouy, B. [CEA Saclay, Irfu/ SACM, 91191 Gif-sur-Yvette (France); Kimura, N.; Yamamoto, A. [High Energy Accelerator Research Organization, KEK, Tsukuba, Ibaraki 305-0801 (Japan)

    2014-01-29T23:59:59.000Z

    To investigate the unsteady heat dissipation in accelerator superconducting coils insulated with porous ceramic insulation, two experimental mock-ups reproducing the thermal and the mechanical conditions of a superconducting coils were produced. The mock-ups with compressive load of 10 MPa and 20 MPa were tested at normal (T = 4.23 K and p = 1 bar) and supercritical helium conditions (T = 4.23 K and p = 2.0 to 3.75 bar) during unsteady heat dissipation. The paper presents the experimental results of temperature rise in both superconducting coils as a function of time for a wide range of a localized heat load varying from 0.1 kJ/m{sup 3} up to 12.8 MJ m{sup ?3} per pulse. A numerical model of the transient process in these coils has been developed and the computations are compared with the experimental results.

  5. Mechanical Behavior Analysis of a Test Coil for MICE Coupling Solenoid during Quench

    SciTech Connect (OSTI)

    Pan, Heng; Wang, Li; Guo, Xinglong; Wu, Hong; Green, M.A.

    2009-10-28T23:59:59.000Z

    The coupling magnet for the Muon Ionization Cooling Experiment has a self-inductance of 592 H and the magnet stored energy of 13 MJ at a full current of 210 A for the worst operation case of the MICE channel. The high level of stored energy in the magnet can cause high peak temperature during a quench and induce considerable impact of stresses. One test coil was built in order to validate the design method and to practice the stress and strain situation to occur in the coupling coil. In this study, the analysis on stress redistribution during a quench with sub-divided winding was performed. The stress variation may bring about failure of impregnating material such as epoxy resin, which is the curse of a new normal zone arising. Spring models for impregnating epoxy and fiber-glass cloth in the coil were used to evaluate the mechanical disturbance by impregnated materials failure. This paper presents the detailed dynamic stress and stability analysis to assess the stress distribution during the quench process and to check whether the transient loads are acceptable for the magnet.

  6. Magnetic measurement to evaluate material properties of ferromagnetic structural steels with planar coils

    SciTech Connect (OSTI)

    Ebine, Noriya; Ara, Katsuyuki

    1999-09-01T23:59:59.000Z

    The mechanical properties of a nuclear reactor pressure vessel (RPV) are degraded by fast neutron irradiation during operation. This is well-known as so-called as radiation embrittlement of RPV and an important problem to be considered in the assessment of residual life of the nuclear reactor. Hence the development of nondestructive means is required to measure directly the degree of material degradation in RPV. Here, nondestructive measurement experiments were carried out with a planar coil to evaluate changes of material properties of ferromagnetic structural steels. Examined steels were of A533B that is a low-alloy steel and of SUS410 that is a martensitic stainless steel. The planar coil has two windings; one is of primary for excitation and the other secondary for induction of output voltage. The coil was placed on a test plate with a magnetic yoke for application of a bias dc magnetic field, and excited with a constant current of 25 Hz. Then the output voltages were measured while slowly changing the bias field by excitation of the magnetic yoke with a triangular-wave form current of 0.005 Hz. Changes of output voltages with different test plates were correlated with their mechanical and magnetic properties. The correlation is so good that this measuring method could be applied to nondestructive evaluation of material degradation in ferromagnetic structural steels.

  7. Energy deposition studies of block-coil quadrupoles for the LHC luminosity upgrade

    SciTech Connect (OSTI)

    Kashikhin, V.V.; Monville, M.E.; Ferracin, P.; Sabbi, G.L.; Mokhov, N.V.

    2007-06-01T23:59:59.000Z

    At the LHC upgrade luminosity of 10{sup 35} cm{sup -2} s{sup -1}, collision product power in excess of a kW is deposited in the inner triplet quadrupoles. The quadrupole field sweeps secondary particles from pp-collisions into the superconducting (SC) coils, concentrating the power deposition at the magnetic mid-planes. The local peak power density can substantially exceed the conductor quench limits and reduce component lifetime. Under these conditions, block-coil geometries may result in overall improved performance by removing the superconductor from the magnetic mid-planes and/or allowing increased shielding at such locations. First realistic energy deposition simulations are performed for an interaction region based on block-coil quadrupoles with parameters suitable for the LHC upgrade. Results are presented on distributions of power density and accumulated dose in the inner triplet components as well as on dynamic heat loads on the cryogenic system. Optimization studies are performed on configuration and parameters of the beam pipe, cold bore and cooling channels. The feasibility of the proposed design is discussed.

  8. Use of a Hydrogel-Coated Self-Expandable Coil to Salvage a Failed Transcatheter Embolization of a Mesenteric Hemorrhage

    SciTech Connect (OSTI)

    Bui, James T.; West, Derek L.; Pai, Rajiv; Owens, Charles A. [University of Illinois Medical Center, Department of Radiology (M/C 931) (United States)], E-mail: cowens@uic.edu

    2006-12-15T23:59:59.000Z

    HydroCoil (MicroVention, Aliso Viejo, CA, USA) is a self-expanding detachable coil developed to improve the endovascular occlusion of intracranial aneurysms. The hydrogel polymer covering the microcoil expands to several times its original diameter to enhance thrombosis of the intended vessel. We made use of this new technology to occlude a mesenteric artery pseudoaneurysm that failed superselective embolization with standard microcoils.

  9. Gravid Mosquito Trap P462 -Trap The ChemTica GMT operates on 4 size D cell batteries. A photo-activated switch turns on the fan

    E-Print Network [OSTI]

    Ishida, Yuko

    batteries. A photo-activated switch turns on the fan at dusk. Manual shutoff is required at dawn to prevent at dawn to prevent loss of trapped mosquitoes. Power is supplied by four D cell batteries. The upper case

  10. Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part I: Theoretical Model and Simulation

    E-Print Network [OSTI]

    Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W.

    2007-01-01T23:59:59.000Z

    As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream of the sensor...

  11. 44 Market St - Refurbishment of a Dual Duct Building

    E-Print Network [OSTI]

    Bannister, P.; Foo, G.

    2013-01-01T23:59:59.000Z

    Page 1 of 9 44 MARKET ST ? REFURBISHMENT OF A DUAL DUCT BUILDING ? ? DR PAUL BANNISTER Managing Director Exergy Australia Pty Ltd Canberra, ACT, Australia GRACE FOO Consultant Exergy Australia Pty Ltd Canberra, ACT, Australia ? ABSTRACT...-zone dual duct unit with a single supply fan and separate cooling and heating coils serving the retail bank and optometrist tenancies. AHU-6 (caf?) was a constant volume system equipped with cooling and heating coils. AHU-B1 (Australia Post on Basement...

  12. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Fuels Used and End Uses in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings...

  13. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Space Heating in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With"...

  14. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Computers and Other Electronics in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in...

  15. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    2 Water Heating in U.S. Homes, by OwnerRenter Status, 2009" " Million Housing Units, Final" ,,,,"Housing Unit Type" ,,,,"Single-Family Units",,,,"Apartments in Buildings With"...

  16. An accurate online calibration system based on combined clamp-shape coil for high voltage electronic current transformers

    SciTech Connect (OSTI)

    Li, Zhen-hua; Li, Hong-bin; Zhang, Zhi [CEEE of Huazhong University of Science and Technology, Wuhan 430074 (China) [CEEE of Huazhong University of Science and Technology, Wuhan 430074 (China); State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Wuhan 430074 (China)

    2013-07-15T23:59:59.000Z

    Electronic transformers are widely used in power systems because of their wide bandwidth and good transient performance. However, as an emerging technology, the failure rate of electronic transformers is higher than that of traditional transformers. As a result, the calibration period needs to be shortened. Traditional calibration methods require the power of transmission line be cut off, which results in complicated operation and power off loss. This paper proposes an online calibration system which can calibrate electronic current transformers without power off. In this work, the high accuracy standard current transformer and online operation method are the key techniques. Based on the clamp-shape iron-core coil and clamp-shape air-core coil, a combined clamp-shape coil is designed as the standard current transformer. By analyzing the output characteristics of the two coils, the combined clamp-shape coil can achieve verification of the accuracy. So the accuracy of the online calibration system can be guaranteed. Moreover, by employing the earth potential working method and using two insulating rods to connect the combined clamp-shape coil to the high voltage bus, the operation becomes simple and safe. Tests in China National Center for High Voltage Measurement and field experiments show that the proposed system has a high accuracy of up to 0.05 class.

  17. Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

    2012-01-01T23:59:59.000Z

    a comparison of room cooling load and supply air to roomtemperatures, cooling load profiles, supply airflow rate,water cooling coil, hot water heating coil and supply fan.

  18. Detection of Rooftop Cooling Unit Faults Based on Electrical Measurements

    SciTech Connect (OSTI)

    Armstrong, Peter R.; Laughman, C R.; Leeb, S B.; Norford, L K.

    2006-01-31T23:59:59.000Z

    Non-intrusive load monitoring (NILM) is accomplished by sampling voltage and current at high rates and reducing the resulting start transients or harmonic contents to concise ''signatures''. Changes in these signatures can be used to detect, and in many cases directly diagnose, equipment and component faults associated with roof-top cooling units. Use of the NILM for fault detection and diagnosis (FDD) is important because (1) it complements other FDD schemes that are based on thermo-fluid sensors and analyses and (2) it is minimally intrusive (one measuring point in the relatively protected confines of the control panel) and therefore inherently reliable. This paper describes changes in the power signatures of fans and compressors that were found, experimentally and theoretically, to be useful for fault detection.

  19. Effect of a Radiant Panel Cooling System on Indoor Air Quality of a Conditioned Space

    E-Print Network [OSTI]

    Mohamed, E.; Abdalla, K. N.

    2010-01-01T23:59:59.000Z

    This paper discusses the effect of a radiant cooling panel system on an indoor air quality (IAQ) of a conditioned space. In this study, ceiling radiant cooling panel, mechanical ventilation with fan coil unit (FCU) and 100% fresh air are used...

  20. Additions, Alterations, and Repairs Introduction Page 8-1 8 Additions, Alterations, and Repairs

    E-Print Network [OSTI]

    conditioning and heating system. 5. Replacing an air conditioner or the exterior unit or indoor coil of a split system air conditioner. 6. Replacing of a furnace or water heater. 7. Replacing windows where all compressor in an air conditioner but not replacing the entire air conditioner. 3. Replacing a failed fan

  1. Basic cooling characteristics of perfluorocarbon liquid immersed windings for nonflammable transformers; Disk coil cooling for large-capacity forced circulating transformers. Part 1

    SciTech Connect (OSTI)

    Yamazaki, H.; Sakamoto, T. (Mechanical Engineering Research Lab., Hitachi, Ltd. (JP)); Takagi, I. (Chubu Electric Power Co., Inc., Keizaburo Hawashima (JP))

    1991-01-01T23:59:59.000Z

    This paper reports that to develop a new type of nonflammable large-power transformer which uses perfluorocarbon liquid as the cooling and insulation medium, the basic cooling characteristics of the liquid were investigated. Using a horizontal coil duct model, design data on heat-transfer characteristics of perfluorocarbon liquid were obtained by the computer program. Using a two-dimensional cooling model of nine coils per section, the velocity distribution in the coil ducts and the temperature rise distribution of the coils were clarified. Comparisons were made between experimental and calculated results and the developed computer program was found to be valid for the prediction of the velocity distribution in the coil ducts and of the temperature rise distribution of the coils.

  2. A liquid-helium-free superconducting coil system forming a flat minimum-magnetic-field distribution of an electron cyclotron resonance ion source

    SciTech Connect (OSTI)

    Yoshida, Ken-ichi, E-mail: yoshida.kennichi71@jaea.go.jp; Nara, Takayuki; Saitoh, Yuichi; Yokota, Watalu [Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)] [Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)

    2014-02-15T23:59:59.000Z

    A flat distribution of the minimum magnetic field (flat-B{sub min}) of an electron cyclotron resonance ion source (ECRIS) is expected to perform better in highly charged ion production than classical B{sub min}. To form a flat-B{sub min} structure with a liquid helium-free superconducting device, a coil system of seven coils with four current leads has been designed. The lead number was reduced by connecting the plural coils in series to maintain the flat-B{sub min} structure even when the coil currents are changed for adjustment. This coil system can be operated with a helium-free cryostat, since the estimation of heat from the leads to the coils is nearly equivalent to the existing superconducting ECRIS of a similar type.

  3. High voltage capability electrical coils insulated with materials containing SF.sub.6 gas

    DOE Patents [OSTI]

    Lanoue, Thomas J. (Muncie, IN); Zeise, Clarence L. (Penn Township, Allegheny County, PA); Wagenaar, Loren (Muncie, IN); Westervelt, Dean C. (Acme, PA)

    1988-01-01T23:59:59.000Z

    A coil is made having a plurality of layers of adjacent metal conductor windings subject to voltage stress, where the windings have insulation therebetween containing a small number of minute disposed throughout its cross-section, where the voids are voids filled with SF.sub.6 gas to substitute for air or other gaseous materials in from about 60% to about 95% of the cross-sectional void volume in the insulation, thus incorporating an amount of SF.sub.6 gas in the cross-section of the insulation effective to substantially increase corona inception voltages.

  4. BaBar technical design report: Chapter 9, Magnet coil and flux return

    SciTech Connect (OSTI)

    O`Connor, T.; The BaBar Collaboration

    1995-03-01T23:59:59.000Z

    The BaBar magnet is a thin, 1.5 T superconducting solenoid with a hexagonal flux return. This chapter discusses the physics requirements and performance goals for the magnet, describes key interfaces, and summarizes the projected magnet performance. It also presents the design of the superconducting solenoid, including magnetic design, cold mass design, quench protection and stability, cold mass cooling, cryostat design, and coil assembly and transportation. The cryogenic supply system and instrumentation are described briefly, and the flux return is described.

  5. Solid-state circuit breaker with current-limiting characteristic using a superconducting coil

    DOE Patents [OSTI]

    Boenig, H.J.

    1982-08-16T23:59:59.000Z

    A thyristor bridge interposes an ac source and a load. A series connected DC source and superconducting coil within the bridge biases the thyristors thereof so as to permit bidirectional ac current flow therethrough under normal operating conditions. Upon a fault condition a control circuit triggers the thyristors so as to reduce ac current flow therethrough to zero in less than two eyeles and to open the bridge thereafter. Upon a temporary overload condition the control circuit triggers the thyristors so as to limit ac current flow therethrough to an acceptable level.

  6. 30 MJ superconducting magnetic energy storage stabilizing coil. Final report for construction

    SciTech Connect (OSTI)

    NONE

    1983-03-01T23:59:59.000Z

    This report covers Phase II, Fabrication and Delivery of the 30 MJ Superconducting Magnetic Energy Storage Stabilizing Coil. A history of the manufacturing and assembly phase of the magnet is presented. Major problems and solutions are summarized, and illustrations of the major operations are provided. The Quality Assurance program is described with a listing of all nonconformance reports. Design documentation is provided, including a Design Document Index, monthly progress reports, and a list of papers given on the project. Appendices to the report contain copies of released and revised design calculations, test reports, assembly procedure, and nonconformance reports and engineering dispositions.

  7. A method for the optimization of the birdcage coil in MRI

    E-Print Network [OSTI]

    Spence, Dan Kenrick

    1999-01-01T23:59:59.000Z

    the homogeneity of the coil. This effect is best explained using the method of images (11). Using this method, the shield is assumed to be a perfect conductor and flat. Since the tangential electric fields on the surface of a perfect conductor must be zero, a..., these conditions are E?= E? nz x(H, ? Hz) = J, D, ?-D, ?= p, B, ?= Bz? [2. 26] There are two special cases for these conditions, the boundary between two lossless media, and the boundary between a dielectric and a perfect electrical conductor...

  8. Utilization of endless coiled tubing and nitrogen gas in geothermal well system maintenance

    SciTech Connect (OSTI)

    McReynolds, A.S.; Maxson, H.L.

    1980-09-01T23:59:59.000Z

    The use of endless coiled tubing and nitrogen gas combine to offer efficient means of initiating and maintaining geothermal and reinjection well productivity. Routine applications include initial flashing of wells in addition to the surging of the formation by essentially the same means to increase production rates. Various tools can be attached to the tubing for downhole measurement purposes whereby the effectiveness of the tools is enhanced by this method of introduction to the well bore. Remedial work such as scale and fill removal can also be accomplished in an efficient manner by using the tubing as a work string and injecting various chemicals in conjunction with specialized tools to remedy downhole problems.

  9. STATUS OF MECHANICAL SLUDGE REMOVAL AND COOLING COILS CLOSURE AT THE SAVANNAH RIVER SITE - F TANK FARM CLOSURE PROJECT - 9225

    SciTech Connect (OSTI)

    Jolly, R

    2009-01-06T23:59:59.000Z

    The Savannah River Site F-Tank Farm Closure project has successfully performed Mechanical Sludge Removal using the Waste on Wheels (WOW) system within two of its storage tanks. The Waste on Wheels (WOW) system is designed to be relatively mobile with the ability for many components to be redeployed to multiple tanks. It is primarily comprised of Submersible Mixer Pumps (SMPs), Submersible Transfer Pumps (STPs), and a mobile control room with a control panel and variable speed drives. These tanks, designated as Tank 6 and Tank 5 respectively, are Type I waste tanks located in F-Tank Farm (FTF) with a capacity of 2839 cubic meters (750,000 gallons) each. In addition, Type I tanks have 34 vertically oriented cooling coils and two horizontal cooling coil circuits along the tank floor. DOE intends to remove from service and operationally close Tank 5 and Tank 6 and other HLW tanks that do not meet current containment standards. After obtaining regulatory approval, the tanks and cooling coils will be isolated and filled with grout for long term stabilization. Mechanical Sludge Removal of the remaining sludge waste within Tank 6 removed {approx} 75% of the original 25,000 gallons in August 2007. Utilizing lessons learned from Tank 6, Tank 5 Mechanical Sludge Removal completed removal of {approx} 90% of the original 125 cubic meters (33,000 gallons) of sludge material in May 2008. The successful removal of sludge material meets the requirement of approximately 19 to 28 cubic meters (5,000 to 7,500 gallons) remaining prior to the Chemical Cleaning process. The Chemical Cleaning Process will utilize 8 wt% oxalic acid to dissolve the remaining sludge heel. The flow sheet for Chemical Cleaning planned a 20:1 volume ratio of acid to sludge for the first strike with mixing provided by the submersible mixer pumps. The subsequent strikes will utilize a 13:1 volume ratio of acid to sludge with no mixing. The results of the Chemical Cleaning Process are detailed in the 'Status of Chemical Cleaning of Waste Tanks at the Savannah River Site--F Tank Farm Closure Project--Abstract 9114'. To support Tank 5 and Tank 6 cooling coil closure, cooling coil isolation and full scale cooling coil grout testing was completed to develop a strategy for grouting the horizontal and vertical cooling coils. This paper describes in detail the performance of the Mechanical Sludge Removal activities and SMP operational strategies within Tank 5. In addition, it will discuss the current status of Tank 5 & 6 cooling coil isolation activities and the results from the cooling coil grout fill tests.

  10. Proposal for the Award of a Contract for the Supply, Installation and Commissioning of a Hydraulic Press for Collaring the LHC Superconducting Dipole Coils

    E-Print Network [OSTI]

    1997-01-01T23:59:59.000Z

    Proposal for the Award of a Contract for the Supply, Installation and Commissioning of a Hydraulic Press for Collaring the LHC Superconducting Dipole Coils

  11. Issuance 2014-11-21:Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension

    Broader source: Energy.gov [DOE]

    Energy Efficiency Program for Consumer Products: Energy Conservation Standards for Ceiling Fans: Availability of the Preliminary Technical Support Document, Notice of Comment Period Extension

  12. Measurements on Subscale Y-Ba-Cu-O Racetrack Coils at 77 K and Self-Field

    SciTech Connect (OSTI)

    Wang, X.; Caspi, S.; Cheng, D. W.; Dietderich, D. R.; Felice, H.; Ferracin, P.; Godeke, A.; Joseph, J. M.; Lizarazo, J.; Prestemon, S. O.; Sabbi, G.

    2009-10-19T23:59:59.000Z

    YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) tapes carry significant amount of current at fields beyond the limit of Nb-based conductors. This makes the YBCO tapes a possible conductor candidate for insert magnets to increase the bore field of Nb{sub 3}Sn high-field dipoles. As an initial step of the YBCO insert technology development, two subscale racetrack coils were wound using Kapton-insulated commercial YBCO tapes. Both coils had two layers; one had 3 turns in each layer and the other 10 turns. The coils were supported by G10 side rails and waxed strips and not impregnated. The critical current of the coils was measured at 77 K and self-field. A 2D model considering the magnetic-field dependence of the critical current was used to estimate the expected critical current. The measured results show that both coils reached 80%-95% of the expected values, indicating the feasibility of the design concept and fabrication process.

  13. Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan

    SciTech Connect (OSTI)

    Lee, Victoria E.; DePaolo, Donald J.; Christensen, John N.

    2010-04-30T23:59:59.000Z

    Obtaining quantitative information about the timescales associated with sediment transport, storage, and deposition in continental settings is important but challenging. The uranium-series comminution age method potentially provides a universal approach for direct dating of Quaternary detrital sediments, and can also provide estimates of the sediment transport and storage timescales. (The word"comminution" means"to reduce to powder," reflecting the start of the comminution age clock as reduction of lithic parent material below a critical grain size threshold of ~;;50 mu m.) To test the comminution age method as a means to date continental sediments, we applied the method to drill-core samples of the glacially-derived Kings River Fan alluvial deposits in central California. Sediments from the 45 m core have independently-estimated depositional ages of up to ~;;800 ka, based on paleomagnetism and correlations to nearby dated sediments. We characterized sequentially-leached core samples (both bulk sediment and grain size separates) for U, Nd, and Sr isotopes, grain size, surface texture, and mineralogy. In accordance with the comminution age model, where 234U is partially lost from small sediment grains due to alpha recoil, we found that (234U/238U) activity ratios generally decrease with age, depth, and specific surface area, with depletions of up to 9percent relative to radioactive equilibrium. The resulting calculated comminution ages are reasonable, although they do not exactly match age estimates from previous studies and also depend on assumptions about 234U loss rates. The results indicate that the method may be a significant addition to the sparse set of available tools for dating detrital continental sediments, following further refinement. Improving the accuracy of the method requires more advanced models or measurements for both the recoil loss factor fa and weathering effects. We discuss several independent methods for obtaining fa on individual samples that may be useful for future studies.

  14. Self-Assembly of Rod-Coil Block Copolymers And Their Application in Electroluminescent Devices

    SciTech Connect (OSTI)

    Tao, Y.; Ma, B.; Segalman, R.A.

    2009-05-26T23:59:59.000Z

    The formation of alternating electron transporting and hole transporting 15 nm lamellae within the active layer of an organic light-emitting diode (OLED) is demonstrated to improve device performance. A new multifunctional bipolar rod-coil block copolymer containing a poly(alkoxy phenylenevinylene) (PPV) rod-shaped block as the hole transporting and emitting material and a poly(vinyloxadiazole) coil-shaped electron transporting block is synthesized. This new block copolymer is the active material of a self-assembling multicomponent electroluminescent device that can be deposited in a single step. In the thin film, grazing incidence X-ray scattering and transmission electron microscopy demonstrate that the layers form grains which are oriented bimodally: parallel and perpendicular from the anode. In this mixed orientation, the device demonstrates better performance than those with either pure PPV or a blend of the two analogous homopolymers as the active materials, i.e., higher external quantum efficiency (EQE) and brightness. This improved device performance is mainly attributed to the bipolar functionality and microphase separation of the block copolymer, which provide highly efficient hole and electron recombination at the nanodomain interfaces.

  15. Calculation of Eddy Currents In the CTH Vacuum Vessel and Coil Frame

    SciTech Connect (OSTI)

    A. Zolfaghari, A. Brooks, A. Michaels, J. Hanson, and G. Hartwell

    2012-09-25T23:59:59.000Z

    Knowledge of eddy currents in the vacuum vessel walls and nearby conducting support structures can significantly contribute to the accuracy of Magnetohydrodynamics (MHD) equilibrium reconstruction in toroidal plasmas. Moreover, the magnetic fields produced by the eddy currents could generate error fields that may give rise to islands at rational surfaces or cause field lines to become chaotic. In the Compact Toroidal Hybrid (CTH) device (R0 = 0.75 m, a = 0.29 m, B ? 0.7 T), the primary driver of the eddy currents during the plasma discharge is the changing flux of the ohmic heating transformer. Electromagnetic simulations are used to calculate eddy current paths and profile in the vacuum vessel and in the coil frame pieces with known time dependent currents in the ohmic heating coils. MAXWELL and SPARK codes were used for the Electromagnetic modeling and simulation. MAXWELL code was used for detailed 3D finite-element analysis of the eddy currents in the structures. SPARK code was used to calculate the eddy currents in the structures as modeled with shell/surface elements, with each element representing a current loop. In both cases current filaments representing the eddy currents were prepared for input into VMEC code for MHD equilibrium reconstruction of the plasma discharge. __________________________________________________

  16. Self-Assembly of Rod-Coil Block Copolymers and Their Application in Electroluminescent Devices

    SciTech Connect (OSTI)

    Tao, Yuefei; Ma, Biwu; Segalman, Rachel A. (UCB); (LBNL)

    2008-11-18T23:59:59.000Z

    The formation of alternating electron transporting and hole transporting 15 nm lamellae within the active layer of an organic light-emitting diode (OLED) is demonstrated to improve device performance. A new multifunctional bipolar rod-coil block copolymer containing a poly(alkoxy phenylenevinylene) (PPV) rod-shaped block as the hole transporting and emitting material and a poly(vinyloxadiazole) coil-shaped electron transporting block is synthesized. This new block copolymer is the active material of a self-assembling multicomponent electroluminescent device that can be deposited in a single step. In the thin film, grazing incidence X-ray scattering and transmission electron microscopy demonstrate that the layers form grains which are oriented bimodally: parallel and perpendicular from the anode. In this mixed orientation, the device demonstrates better performance than those with either pure PPV or a blend of the two analogous homopolymers as the active materials, i.e., higher external quantum efficiency (EQE) and brightness. This improved device performance is mainly attributed to the bipolar functionality and microphase separation of the block copolymer, which provide highly efficient hole and electron recombination at the nanodomain interfaces.

  17. The SMC (Short Model Coil) Nb3Sn Program: FE Analysis with 3D Modeling

    E-Print Network [OSTI]

    Kokkinos, C; Guinchard, M; Karppinen, M; Manil, P; Perez, J C; Regis, F

    2012-01-01T23:59:59.000Z

    The SMC (Short Model Coil) project aims at testing superconducting coils in racetrack configuration, wound with Nb3Sn cable. The degradation of the magnetic properties of the cable is studied by applying different levels of pre-stress. It is an essential step in the validation of procedures for the construction of superconducting magnets with high performance conductor. Two SMC assemblies have been completed and cold tested in the frame of a European collaboration between CEA (FR), CERN and STFC (UK), with the technical support from LBNL (US). The second assembly showed remarkable good quench results, reaching a peak field of 12.5T. This paper details the new 3D modeling method of the SMC, implemented using the ANSYS® Workbench environment. Advanced computer-aided-design (CAD) tools are combined with multi-physics Finite Element Analyses (FEA), in the same integrated graphic interface, forming a fully parametric model that enables simulation driven development of the SMC project. The magnetic and structural ...

  18. Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching

    DOE Patents [OSTI]

    He, J.; Rote, D.M.

    1996-05-21T23:59:59.000Z

    A stabilization and propulsion system are disclosed comprising a series of loop-coils arranged in parallel rows wherein two rows combine to form one of two magnetic rails. Levitation and lateral stability are provided when the induced field in the magnetic rails interacts with the superconducting magnets mounted on the magnetic levitation vehicle. The loop-coils forming the magnetic rails have specified dimensions and a specified number of turns and by constructing differently these specifications, for one rail with respect to the other, the angle of tilt of the vehicle can be controlled during directional switching. Propulsion is provided by the interaction of a traveling magnetic wave associated with the coils forming the rails and the superconducting magnets on the vehicle. 12 figs.

  19. Design and Fabrication of a Supporting Structure for 3.6m Long Nb3Sn Racetrack Coils

    SciTech Connect (OSTI)

    Ambrosio, G.; Anerella, M.; Barzi, E.; Caspi, Shlomo; Cheng, Daniel; Dietderich, Daniel; Gourlay, Steve; Hafalia, A. Ray; Hannaford, Charles; Lietzke, Alan; Nobrega, A.R.; Sabbi, GianLuca; Schmalzle, J.; Wanderer, R. J; Zlobin, A.V.; Ferracin, P.

    2007-06-01T23:59:59.000Z

    As part of the LHC Accelerator Research Program (LARP), three US national laboratories (BNL, FNAL, and LBNL) are currently engaged in the development of superconducting magnets for the LHC Interaction Regions (IR) beyond the current design. As a first step towards the development of long Nb{sub 3}Sn quadrupole magnets, a 3.6 m long structure, based on the LBNL Subscale Common-Coil Magnet design, will be fabricated, assembled, and tested with aluminum-plate 'dummy coils'. The structure features an aluminum shell pre-tensioned over iron yokes using pressurized bladders and locking keys (bladder and key technology). Pre-load homogeneity and mechanical responses are monitored with pressure sensitive films and strain gauges mounted on the aluminum shell and the dummy coils. The details of the design and fabrication are presented and discussed, and the expected mechanical behavior is analyzed with finite element models.

  20. Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching

    DOE Patents [OSTI]

    He, Jianliang (Naperville, IL); Rote, Donald M. (Lagrange, IL)

    1996-01-01T23:59:59.000Z

    A stabilization and propulsion system comprising a series of loop-coils arranged in parallel rows wherein two rows combine to form one of two magnetic rails. Levitation and lateral stability are provided when the induced field in the magnetic rails interacts with the superconducting magnets mounted on the magnetic levitation vehicle. The loop-coils forming the magnetic rails have specified dimensions and a specified number of turns and by constructing differently these specifications, for one rail with respect to the other, the angle of tilt of the vehicle can be controlled during directional switching. Propulsion is provided by the interaction of a traveling magnetic wave associated with the coils forming the rails and the super conducting magnets on the vehicle.

  1. Modeling a Helical-coil Steam Generator in RELAP5-3D for the Next Generation Nuclear Plant

    SciTech Connect (OSTI)

    Nathan V. Hoffer; Piyush Sabharwall; Nolan A. Anderson

    2011-01-01T23:59:59.000Z

    Options for the primary heat transport loop heat exchangers for the Next Generation Nuclear Plant are currently being evaluated. A helical-coil steam generator is one heat exchanger design under consideration. Safety is an integral part of the helical-coil steam generator evaluation. Transient analysis plays a key role in evaluation of the steam generators safety. Using RELAP5-3D to model the helical-coil steam generator, a loss of pressure in the primary side of the steam generator is simulated. This report details the development of the steam generator model, the loss of pressure transient, and the response of the steam generator primary and secondary systems to the loss of primary pressure. Back ground on High Temperature Gas-cooled reactors, steam generators, the Next Generation Nuclear Plant is provided to increase the readers understanding of the material presented.

  2. Experimental Study of a Cooling Coil and the Validation of its Simulation Model for the Purpose of Commissioning

    E-Print Network [OSTI]

    Yamaguchi, H.; Miyata, M.; Oda, H.; Shioya, M.; Watanabe, T.; Niwa, H.; Yoshida, H.

    2006-01-01T23:59:59.000Z

    +Type602. The static model was selected for use in the present study, although SIMBAD provides both static and dynamic models. TRNSYS Type52 can be applied to dynamic simulation, by incorporating a subroutine. 1) HASP/ACSS/8502 cooling/warming coil... 1) 2) HVACSIM+ Type602 2,3) 3) SIMBAD Detailed static cooling coil 4) 4) ASHRAE Type63 5) 5) Niitsu model 6) 6) TRNSYS Type52 7) 7) Calculation method using the coefficient of the wet surface8) * In the following sentences, names...

  3. Eddy currents in a transverse MRI gradient coil. J.M.B. Kroot, S.J.L. van Eijndhoven, A.A.F. van de Ven

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    Eddy currents in a transverse MRI gradient coil. J.M.B. Kroot, S.J.L. van Eijndhoven, A.A.F. van de logarithmically singular kernel represents inductive effects related to the occurrence of eddy currents on the development of eddy currents in the gradient coils, which have a negative effect on the uniformity

  4. Rotating electrical machines - Part 15: Impulse voltage withstand levels of rotating a.c. machines with form-wound stator coils

    E-Print Network [OSTI]

    International Electrotechnical Commission. Geneva

    1995-01-01T23:59:59.000Z

    Applies to rotating a.c. machines for rated voltages from 3 kV to 15 kV inclusive and incorporating form-wound stator coils. Specifies the rated phase-to-earth impulse voltage withstand levels and the test procedure and voltages to be applied to the main and interturn insulation of sample coils.

  5. Type-I superconductor pick-up coil in superconducting quantum interference device-based ultra-low field nuclear magnetic resonance

    SciTech Connect (OSTI)

    Hwang, Seong-min, E-mail: smhwang@kriss.re.kr; Kim, Kiwoong; Kyu Yu, Kwon; Lee, Seong-Joo; Hyun Shim, Jeong [Korea Research Institute of Standards and Science, Daejeon 305-340 (Korea, Republic of); Körber, Rainer [Physikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin (Germany); Magnicon GmbH, Division Berlin, Abbestraße 2-12, D-10587 Berlin (Germany); Burghoff, Martin [Physikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin (Germany)

    2014-02-10T23:59:59.000Z

    In ultra-low field nuclear magnetic resonance (ULF-NMR) with strong prepolarization field (B{sub p}), type-II superconducting pick-up coils may be vulnerable to flux pinning from the strong B{sub p}. Pick-up coils made of NbTi, Nb, and Pb were evaluated in terms of acquired NMR signal quality. The type-II pick-up coils showed degraded signals above 61?mT maximum exposure, while the Pb pick-up coil exhibited no such degradation. Furthermore, a negative counter pulse following a strong B{sub p} was shown to follow magnetic hysteresis loop to unpin the trapped flux in the type-II pick-up coil and restore the NMR signal.

  6. Measuring temperature - dependent propagating disturbances in coronal fan loops using multiple SDO/AIA channels and surfing transform technique

    E-Print Network [OSTI]

    Uritsky, Vadim M; Viall, Nicholeen M; Ofman, Leon

    2013-01-01T23:59:59.000Z

    A set of co-aligned high resolution images from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) is used to investigate propagating disturbances (PDs) in warm fan loops at the periphery of a non-flaring active region NOAA AR 11082. To measure PD speeds at multiple coronal temperatures, a new data analysis methodology is proposed enabling quantitative description of subvisual coronal motions with low signal-to-noise ratios of the order of 0.1 %. The technique operates with a set of one-dimensional "surfing" signals extracted from position-time plots of several AIA channels through a modified version of Radon transform. The signals are used to evaluate a two-dimensional power spectral density distribution in the frequency - velocity space which exhibits a resonance in the presence of quasi-periodic PDs. By applying this analysis to the same fan loop structures observed in several AIA channels, we found that the traveling velocity of PDs increases with the temperature of the c...

  7. Spectroscopic measurement of ion temperature and ion velocity distributions in the flux-coil generated FRC

    SciTech Connect (OSTI)

    Gupta, D.; Gota, H.; Hayashi, R.; Kiyashko, V.; Morehouse, M.; Primavera, S. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Bolte, N. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Marsili, P. [Department of Physics, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Roche, T. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Wessel, F. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States)

    2010-10-15T23:59:59.000Z

    One aim of the flux-coil generated field reversed configuration at Tri Alpha Energy (TAE) is to establish the plasma where the ion rotational energy is greater than the ion thermal energy. To verify this, an optical diagnostic was developed to simultaneously measure the Doppler velocity-shift and line-broadening using a 0.75 m, 1800 groves/mm, spectrometer. The output spectrum is magnified and imaged onto a 16-channel photomultiplier tube (PMT) array. The individual PMT outputs are coupled to high-gain, high-frequency, transimpedance amplifiers, providing fast-time response. The Doppler spectroscopy measurements, along with a survey spectrometer and photodiode-light detector, form a suite of diagnostics that provide insights into the time evolution of the plasma-ion distribution and current when accelerated by an azimuthal-electric field.

  8. Coiled tubing deployed ESP works well for Shell in North Sea field

    SciTech Connect (OSTI)

    Watkins, P. [Centrilift, Aberdeen (United Kingdom); Stewart, D.

    1996-06-01T23:59:59.000Z

    What is believed to be the world`s first offshore coiled tubing deployed ESP system was installed by Centrilift, a Division of Baker Hughes Ltd., on Shell Expro`s Auk field Alpha platform in March 1995. After one year, the system is working well and is now viewed as a major step forward in alternative deployment methods for ESPs. Basic features of the system and project background are overviewed here. Shell U.K. Exploration and Production (Expro) operates in the UK Sector of the North Sea on behalf of Shell and Esso. Centrilift worked closely with Shell on this high-profile project and is active on several others, all aimed at reducing the operator`s cost for installing ESPs by using alternative deployment methods.

  9. Proton radiography of magnetic field produced by ultra-intense laser irradiating capacity-coil target

    E-Print Network [OSTI]

    Wang, W W; Chen, J; Cai, H B; He, S K; Zhou, W M; Shan, L Q; Lu, F; Wu, Y C; Hong, W; Liu, D X; Bi, B; Zhang, F; Xue, F B; Li, B Y; Zhang, B; He, Y L; He, W; Jiao, J L; Dong, K G; Zhang, F Q; Deng, Z G; Zhang, Z M; Cui, B; Han, D; Zhou, K N; Wang, X D; Zhao, Z Q; Cao, L F; Zhang, B H; He, X T; Gu, Y Q

    2014-01-01T23:59:59.000Z

    Ultra-intense ultra-short laser is firstly used to irradiate the capacity-coil target to generate magnetic field. The spatial structure and temporal evolution of huge magnetic fields were studied with time-gated proton radiography method. A magnetic flux density of 40T was measured by comparing the proton deflection and particle track simulations. Although the laser pulse duration is only 30fs, the generated magnetic field can last for over 100 picoseconds. The energy conversion efficiency from laser to magnetic field can reach as high as ~20%. The results indicate that tens of tesla (T) magnetic field could be produced in many ultra intense laser facilities around the world, and higher magnetic field could be produced by picosecond lasers.

  10. 300 MHz RF coils for MR studies of Macaca mulatta brain at 7 Tesla Hellmut Merkle2

    E-Print Network [OSTI]

    Jegelka, Stefanie

    300 MHz RF coils for MR studies of Macaca mulatta brain at 7 Tesla Hellmut Merkle2 , Josef Pfeuffer, customized for a vertical ultra high field 7 Tesla system develop for vision research in the alert, trained macaque. Methods A prototype primate chair was designed and built for the vertical 7-Tesla/60-cm BRUKER

  11. A Stretch-Coil Transition and Transport of Fibers in Cellular Flows Y.-N. Young1

    E-Print Network [OSTI]

    Young, Yuan N.

    -coil" instability ­ when moving in the neighborhood of a hyperbolic stagnation point of the flow. When composed of a lattice of hyperbolic fixed points connected by sta- ble/unstable manifolds (converging of fiber elastic energy 2E for this simulation. The peak at large curvatures corresponds to the persistent

  12. The Role of Quench-back in the Passive Quench Protection of Long Solenoids with Coil Sub-division

    SciTech Connect (OSTI)

    Green, Michael A.; Guo, XingLong; Wang, Li; Pan, Heng; Wu, Hong

    2009-10-19T23:59:59.000Z

    This paper describes how a passive quench protection system can be applied to long superconducting solenoid magnets. When a solenoid coil is long compared to its thickness, the magnet quench process will be dominated by the time needed for uench propagation along the magnet length. Quench-back will permit a long magnet to quench more rapidly in a passive way. Quenchback from a conductive (low resistivity) mandrel is essential for spreading the quench along the length of a magnet. The andrel must be inductively coupled to the magnet circuit that is being quenched. Current induced in the mandrel by di/dt in the magnet produces heat in the mandrel, which in turn causes the superconducting coil wound on the mandrel to quench. Sub-divisions often employed to reduce the voltages to ground within the coil. This paper explores when it is possible for quench-back to be employed for passive quench protection. The role of sub-division of the coil is discussed for long magnets.

  13. PROPELLER-EPI With Parallel Imaging Using a Circularly Symmetric Phased-Array RF Coil at 3.0 T

    E-Print Network [OSTI]

    to EPI's relatively slow sam- pling rate along the phase-encoding direction, diffusion images generallyPROPELLER-EPI With Parallel Imaging Using a Circularly Symmetric Phased-Array RF Coil at 3.0 T: Application to High-Resolution Diffusion Tensor Imaging Tzu-Chao Chuang,1 Teng-Yi Huang,2 Fa-Hsuan Lin,3 Fu

  14. 340 IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 17, NO. 3, SEPTEMBER 2002 Characterization of Coil Faults in an Axial Flux

    E-Print Network [OSTI]

    Chow, Mo-Yuen

    ­winding faults in a single stator coil may have relatively little effect on motor perfor- mance but may affect and analysis results are a necessary first step in the process of motor fault detection and diagnosis for this motor topology. This paper examines rotor velocity damping due to stator winding turn-to-turn short

  15. Abstract--Search-coil magnetometers are of common use in space physics thanks to their simplicity, robustness and ability

    E-Print Network [OSTI]

    Abstract--Search-coil magnetometers are of common use in space physics thanks to their simplicity of the Plasma Wave Instrument (PWI) onboard the Mercury Magnetospheric Orbiter (MMO) of the ESA-JAXA mission in the interplanetary medium pervaded by the solar wind or in the vicinity of solar system objects (i.e. planets

  16. Advanced Rooftop Unit Control

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

    Advanced-Rooftop-Unit-Control Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors...

  17. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Used and End Uses in Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  18. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Used and End Uses in Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  19. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    Used and End Uses in Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  20. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    1 Space Heating in U.S. Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  1. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    0 Space Heating in U.S. Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  2. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    9 Space Heating in U.S. Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" " ",,,"East North Central Census...

  3. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    8 Space Heating in U.S. Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  4. United States Department of

    E-Print Network [OSTI]

    ., Ashland, OR 97520 and Gwyneth Myer, Consultant, 220 W. Rapp Rd. Unit 3, Talent, OR 97540. #12;2 THE FIRE

  5. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    1 Computers and Other Electronics in Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census...

  6. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    0 Computers and Other Electronics in Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census...

  7. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    9 Computers and Other Electronics in Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  8. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    8 Computers and Other Electronics in Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  9. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    8 Water Heating in U.S. Homes in Northeast Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Northeast Census Region" ,,,"New England Census...

  10. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    11 Water Heating in U.S. Homes in West Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"West Census Region" ,,,"Mountain Census Division",,,"Pacific...

  11. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    9 Water Heating in U.S. Homes in Midwest Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"Midwest Census Region" ,,,"East North Central Census...

  12. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    0 Water Heating in U.S. Homes in South Region, Divisions, and States, 2009" " Million Housing Units, Final" ,,"South Census Region" ,,,"South Atlantic Census Division",,,,,,"East...

  13. Phase-locked OH-PLIF of Oscillating Flame in Micro Channels FAN, Yong1*, SUZUKI, Yuji1, KASAGI, Nobuhide1

    E-Print Network [OSTI]

    Kasagi, Nobuhide

    excitation lines [6]. Experimental setup of phase-locked OH-PLIF imaging has been developedPhase-locked OH-PLIF of Oscillating Flame in Micro Channels FAN, Yong1*, SUZUKI, Yuji1, KASAGI in the oscillation process are investigated with phase-locked OH-PLIF imaging technique. 2. Flame velocity Figures. 1

  14. Cooling Power Density of SiGe/Si Superlattice Micro Refrigerators Gehong Zeng, Xiaofeng Fan, Chris LaBounty, Edward Croke2

    E-Print Network [OSTI]

    Bowers, John

    Cooling Power Density of SiGe/Si Superlattice Micro Refrigerators Gehong Zeng, Xiaofeng Fan, Chris Experiments were carried out to determine the cooling power density of SiGe/Si superlattice microcoolers by integrating thin film metal resistor heaters on the cooling surface. By evaluating the maximum cooling

  15. [1] E. Yablonovitch, Phys. Rev. Lett. 1987, 58, 2059. [2] V. I. Kopp, B. Fan, H. K. M. Vithana, A. Z. Genack, Opt. Lett. 1998,

    E-Print Network [OSTI]

    Chen, Shaw H.

    . Yablonovitch, T. J. Gmitter, Phys. Rev. Lett. 1991, 67, 3380. [21] O. Painter, P. K. Lee, A. Scherer, A. Yariv± [1] E. Yablonovitch, Phys. Rev. Lett. 1987, 58, 2059. [2] V. I. Kopp, B. Fan, H. K. M. Vithana, A. Z. Genack, Opt. Lett. 1998, 23, 1707. [3] A. Munoz, P. Palffy-Muhoray, B. Taheri, Opt. Lett. 2001

  16. Fan and Pad Greenhouse Evaporative Cooling Systems1 R. A. Bucklin, J. D. Leary, D. B. McConnell, and E. G. Wilkerson2

    E-Print Network [OSTI]

    Watson, Craig A.

    CIR1135 Fan and Pad Greenhouse Evaporative Cooling Systems1 R. A. Bucklin, J. D. Leary, D. B. Mc systems. Such high temperatures reduce crop quality and worker productivity. Evaporative cooling temperatures are important when dealing with evaporative cooling systems ­ dry bulb temperature and wet bulb

  17. Analytical determination of PID coefficients for temperature and humidity control during cooling and dehumidifying by compressor and evaporator fan speed variation

    SciTech Connect (OSTI)

    Krakow, K.I.; Lin, S.; Zeng, Z.S. [Concordia Univ., Montreal, Quebec (Canada). Dept. of Mechanical Engineering

    1995-08-01T23:59:59.000Z

    A linearized analysis of temperature and relative humidity control using proportional-integral-differential (PID) controls to vary compressor motor speed and evaporator fan speed enables analytical determination of suitable PID coefficients. The PID coefficients are related to refrigeration system performance parameters and the volume of the conditioned space. Analytical determination of coefficients may eliminate or supplement trial-and-error methods. System response characteristics--damping ratios and periods--are related to PID coefficients, sampling intervals, performance parameters of a refrigeration system, and the volume of a conditioned space. Two control strategies are possible in order to control space temperature and relative humidity simultaneously. One strategy controls temperature by varying compressor speed and controls relative humidity by varying evaporator fan speed. The other strategy controls temperature by varying evaporator fan speed and controls relative humidity by varying compressor fan speed The first strategy was successfully implemented experimentally as well as by simulation. The second strategy was not successfully implemented due to an adverse interaction between the two control systems.

  18. Intermolecular C-H Bond Activation Promoted by a Titanium Alkylidyne Brad C. Bailey, Hongjun Fan, Erich W. Baum, John C. Huffman, Mu-Hyun Baik,* and

    E-Print Network [OSTI]

    Baik, Mu-Hyun

    Intermolecular C-H Bond Activation Promoted by a Titanium Alkylidyne Brad C. Bailey, Hongjun Fan to perform intermolecular activation of inert C-H bonds.3-7 We now report that transient titanium alkylidynes an energy profile for the C-H bond activation reaction. Recently, our group reported the synthesis

  19. Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals Hongwen Ren, Yun-Hsing Fan, and Shin-Tson Wua)

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals Hongwen Ren, Yun-Hsing Fan May 2003; accepted 27 June 2003 An electrically tunable Fresnel zone plate lens is demonstrated using by voltage. The major advantages of such a Fresnel lens are simple fabrication, large aperture size

  20. High Cooling Power Density of SiGe/Si Superlattice Microcoolers Gehong Zeng, Xiaofeng Fan, Chris LaBounty, John E. Bowers, Edward Croke1

    E-Print Network [OSTI]

    High Cooling Power Density of SiGe/Si Superlattice Microcoolers Gehong Zeng, Xiaofeng Fan, Chris La, University of California, Santa Cruz, CA 95064 ABSTRACT Fabrication and characterization of SiGe for their potential monolithic integration with Si microelectronics. SiGe is a good thermoelectric material especially

  1. FISHERY STATISTICS UNITED STATES

    E-Print Network [OSTI]

    FISHERY STATISTICS OF THE UNITED STATES 1972 STATISTICAL DIGEST NO. 66 Prepared by STATISTICS;ACKNOWLEDGMENTS The data in this edition of "Fishery Statistics of the United States" were collected in co- operation with the various States and tabulated by the staff of the Statistics and Market News Division

  2. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D.

    2013-01-29T23:59:59.000Z

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full. Also, an associative list processing unit and method comprising employing a plurality of prioritized cell blocks and using a tree of prioritized multiplexers descending from the plurality of cell blocks.

  3. United States Department of

    E-Print Network [OSTI]

    Brown, Gregory G.

    Assessment Thomas M. Quigley, Editor U.S. Department of Agriculture Forest Service Pacific Northwest Research, and Andy Wilson. Thomas M. Quigley Editor United States Department of Agriculture Forest Service United Service, Pacific Northwest Research Station. 120 p. (Quigley, Thomas M., ed.; Interior Columbia Basin

  4. United States Environmental

    E-Print Network [OSTI]

    Loudon, Catherine

    Protect Your Family From Lead in Your Home United States Environmental Protection Agency United · What you can do to protect your family · Where to go for more information Before renting or buying Family from Lead Hazards If you think your home has lead-based paint: · Don't try to remove lead

  5. Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial Technology Research Institute, msjeng@itri.org.tw

    E-Print Network [OSTI]

    of twenty FFUs collected from the market were tested, including thirteen 1220 mm x 610 mm (or 4 ft x 2 ft technology with architecture and natural resources. Cleanroom HVAC systems account for a large portion of energy use in cleanrooms. Improving energy efficiency of HVAC systems and their components can contribute

  6. Article (LBNL-55462) submitted to A2C2 for publication in September 2004 Issue Introducing a Standard Testing Method for Fan-filter Units

    E-Print Network [OSTI]

    Article (LBNL-55462) submitted to A2C2 for publication in September 2004 Issue Introducing a uniform method for testing and reporting FFU performance. Lawrence Berkeley National Laboratory (LBNL) [2] . This article describes the activities that LBNL has led in developing the standard for FFU

  7. Eliminating Humidity and Condensation Problems in University Dormitories - Case Study

    E-Print Network [OSTI]

    Claridge, D.; Turner, W. D.; Zhu, Y.; Chen, H.; Bruner, H., Jr.; Hugghins, J.; Deng, S.

    2002-01-01T23:59:59.000Z

    , building construction, and the Energy Management Control System (EMCS). This paper presents the investigation and follow-up efforts, which identified reasons and corrective measures for the high humidity levels in the living areas of Mc... handling units (AHUs) and fan-coil units (FCUs), exhaust systems, and the building energy management control systems (EMCS). Facility information is presented in Table 1. Extensive airflow and water flow measurements were taken on each of the outside...

  8. The development of coil short circuits when transformer windings become contaminated with metal-containing colloidal particles

    SciTech Connect (OSTI)

    L'vov, S. Yu. ['Presselektro' Ltd. (Russian Federation); Lyut'ko, E. O. [JSC 'R and D Center for Power Engineering' (Russian Federation); Bondareva, V. N.; Komarov, V. B. [Russian Academy of Sciences, A. N. Frumkin Institute of Physical Chemistry and Electrochemistry (Russian Federation); L'vov, Yu. N. [JSC 'R and D Center for Power Engineering' (Russian Federation)

    2012-01-15T23:59:59.000Z

    The radiational-thermal development of coil short circuits due to the action of partial discharges of the first kind when the windings of transformers, autotransformers and shunting reactors become contaminated with metal-containing colloidal particles, formed in the transformer oil as a result of the interaction of the oil with the constructional materials (the copper of the windings, the iron of the tank, the core etc.) is considered. Acriterion of dangerous contamination of the coil insulation of the windings by metal-containing colloidal particles is proposed, namely, 3% of the mass content of copper and iron in it, which, if exceeded, may serve as a basis for recognizing the state of transformers, autotransformers and shunting reactors at a voltage of 110 kV and above the limit. It is shown that filters for continuously cleaning the oil play a considerable role in prolonging the life of transformer equipment.

  9. Diagnostics of a negative hydrogen ion source based on a planar-coil inductively-driven discharge

    SciTech Connect (OSTI)

    Lishev, Stiliyan St.; Shivarova, Antonia P.; Iordanov, Dimitar I.; Todorov, Dimitar T.; Demerdzhiev, Angel P. [Faculty of Physics, Sofia University, 5 J. Bourchier Blvd., BG-1164 Sofia (Bulgaria)

    2013-02-08T23:59:59.000Z

    Recent activity on a volume-production negative-hydrogen-ion source with the design of a matrix of small-radius discharges inductively driven by a planar coil is reported. A single discharge of the matrix has been studied by employing probe-and laser-photodetachment diagnostics. The measurements have been carried out in the first - small-size - chamber of a two-chamber discharge vessel, with rf power introduced by a planar coil positioned on its front wall. The measured profiles of the negative ion density show strong axial dependence, with two maxima located at the positions corresponding to the maxima of the dc potential, where the maxima of the electron density are also located. The first maximum is in the vicinity of the rf power input and the second one is close to the interface between the two chambers of the discharge vessel.

  10. Global model of a gridded-ion thruster powered by a radiofrequency inductive coil

    SciTech Connect (OSTI)

    Chabert, P.; Arancibia Monreal, J.; Bredin, J.; Popelier, L.; Aanesland, A. [LPP, CNRS, Ecole Polytechnique, UPMC, Paris XI, 91128 Palaiseau (France)

    2012-07-15T23:59:59.000Z

    A global (volume-averaged) model of a gridded-ion thruster is proposed. The neutral propellant (xenon gas) is injected into the thruster chamber at a fixed rate and a plasma is generated by circulating a radiofrequency current in an inductive coil. The ions generated in this plasma are accelerated out of the thruster by a pair of DC biased grids. The neutralization downstream is not treated. Xenon atoms also flow out of the thruster across the grids. The model, based on particle and energy balance equations, solves for four global variables in the thruster chamber: the plasma density, the electron temperature, the neutral gas (atom) density, and the neutral gas temperature. The important quantities to evaluate the thruster efficiency and performances are calculated from these variables and from the voltage across the grids. It is found that the mass utilization efficiency rapidly decreases with the gas flow rate. However, the radiofrequency power transfer efficiency increases significantly with the injected gas flow rate. Therefore, there is a compromise to be found between these two quantities.

  11. Implementation and operation of VAX-based data acquisition system for the large coil task

    SciTech Connect (OSTI)

    Baylor, L.R.; Blair, E.T.; Greenwood, D.E.; Munro, J.K.

    1985-01-01T23:59:59.000Z

    The VAX-based data acquisition system for the International Fusion Superconducting Magnet Test Facility (IFSMTF) at Oak Ridge National Laboratory (ORNL) is a second generation system that evolved from a PDP-11/60-based system used in the two-coil test and facility shakedown. The VAX 11/780 processor has been interfaced through a CAMAC fiber-optic byte serial highway to five existing LSI-11/23 frontend processors through dataway access port (DAP) modules. The VAX CAMAC interface has permitted the addition of analog input channels for the refrigeration system and analog and digital outputs to drive display devices. Software utilities are provided to operate the data acquisition hardware, maintain data base files, and display data. Graphical display of data is accomplished through the use of VAX IDL (Interactive Data Language), which provides device-independent data presentation. Output from IDL is available for Tektronix displays and has been extended to generate TKF and Versaplot graphics metafiles for hardcopy output to Versatec printer/plotters. In addition, a Sension display system is available for graphical display of real-time data in the form of strip chart and tabular displays. This paper describes the hardware and software design of the system and the operation of the system during the full-array testing sequence.

  12. Automatically clustering similar units for unit selection in speech synthesis. 

    E-Print Network [OSTI]

    Black, Alan W; Taylor, Paul A

    1997-01-01T23:59:59.000Z

    This paper describes a new method for synthesizing speech by concatenating sub-word units from a database of labelled speech. A large unit inventory is created by automatically clustering units of the same phone class ...

  13. Development and test of Nb3sn cos-theta coils made of high-jc rrp strands

    SciTech Connect (OSTI)

    Bossert, R.; Ambrosio, G.; Andreev, N.; Barzi, E.; Carcagno, R.; Feher, S.; Kashikhin, V.S.; Kashikhin, V.V.; Lamm, M.J.; Novitski, I.; Pischalnikov, Yu.; Sylvester, C.; Tartaglia, M.; Turrioni, D.; Yamada, R.; Zlobin, A.V.; /Fermilab

    2005-10-01T23:59:59.000Z

    A series of 1-m long Nb3Sn dipole magnets have been built at Fermilab in an attempt to refine the wind-and-react technology for Nb{sub 3}Sn conductor. Models have been made with MJR and PIT strand with varying degrees of success. Subsequently two new dipole ''mirror'' magnets based on RRP Nb{sub 3}Sn coils were constructed and tested. This paper describes the design, fabrication and test results of those magnets.

  14. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    3 Appliances in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to 1949","1950...

  15. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    3 Televisions in U.S. Homes, by Year of Construction, 2009" " Million Housing Units, Final" ,,"Year of Construction" ,"Total U.S.1 (millions)" ,,"Before 1940","1940 to 1949","1950...

  16. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    4 Televisions in U.S. Homes, by Number of Household Members, 2009" " Million Housing Units, Final" ,,"Number of Household Members" ,"Total U.S.1 (millions)" ,,,,,,"5 or More...

  17. Stochastic Unit Commitment in

    E-Print Network [OSTI]

    Römisch, Werner

    the amount of installed pumped storage capacity enables the inclusion of pumped storage plants units. Its total capacity is about 13,000 megawatts (MW), including a hydro capacity of 1,700 MW

  18. Associative list processing unit

    DOE Patents [OSTI]

    Hemmert, Karl Scott; Underwood, Keith D

    2014-04-01T23:59:59.000Z

    An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full.

  19. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    6 Space Heating in U.S. Homes, by Climate Region, 2009" " Million Housing Units, Final" ,,"Climate Region2" ,"Total U.S.1 (millions)" ,,"Very Cold","Mixed- Humid","Mixed-Dry"...

  20. " Million Housing Units, Final...

    U.S. Energy Information Administration (EIA) Indexed Site

    7 Space Heating in U.S. Homes, by Census Region, 2009" " Million Housing Units, Final" ,,"Census Region" ,"Total U.S.1 (millions)" ,,"Northeast","Midwest","South","West" "Space...