National Library of Energy BETA

Sample records for um size cut

  1. Ultrasonic processor reduces drill-cuttings size and eliminates subsea mounds

    SciTech Connect (OSTI)

    Gaddy, D.E.

    1997-10-06

    Drill cuttings size reduction using ultrasonics eliminated a subsea clean-up and significantly reduced the environmental impact in a North Sea drilling project. Reduction in cuttings size allows for a wider areal dispersion when released into the ocean because they are held in suspension longer than larger sizes. Thus, ocean currents carry the smaller cuttings farther away from the well template, leaving a much wider footprint than larger cuttings sizes. This eliminates the pile-up of cuttings that otherwise would contaminate and harm the marine habitat.

  2. SIZE DISTRIBUTION AND RATE OF PRODUCTION OF AIRBORNE PARTICULATE MATTER GENERATED DURING METAL CUTTING

    SciTech Connect (OSTI)

    M.A. Ebadian, Ph.D.; S.K. Dua, Ph.D., C.H.P.; Hillol Guha, Ph.D.

    2001-01-01

    During deactivation and decommissioning activities, thermal cutting tools, such as plasma torch, laser, and gasoline torch, are used to cut metals. These activities generate fumes, smoke and particulates. These airborne species of matter, called aerosols, may be inhaled if suitable respiratory protection is not used. Inhalation of the airborne metallic aerosols has been reported to cause ill health effects, such as acute respiratory syndrome and chromosome damage in lymphocytes. In the nuclear industry, metals may be contaminated with radioactive materials. Cutting these metals, as in size reduction of gloveboxes and tanks, produces high concentrations of airborne transuranic particles. Particles of the respirable size range (size < 10 {micro}m) deposit in various compartments of the respiratory tract, the fraction and the site in the respiratory tract depending on the size of the particles. The dose delivered to the respiratory tract depends on the size distribution of the airborne particulates (aerosols) and their concentration and radioactivity/toxicity. The concentration of airborne particulate matter in an environment is dependent upon the rate of their production and the ventilation rate. Thus, measuring aerosol size distribution and generation rate is important for (1) the assessment of inhalation exposures of workers, (2) the selection of respiratory protection equipment, and (3) the design of appropriate filtration systems. Size distribution of the aerosols generated during cutting of different metals by plasma torch was measured. Cutting rates of different metals, rate of generation of respirable mass, as well as the fraction of the released kerf that become respirable were determined. This report presents results of these studies. Measurements of the particles generated during cutting of metal plates with a plasma arc torch revealed the presence of particles with mass median aerodynamic diameters of particles close to 0.2 {micro}m, arising from

  3. Cutting assembly

    DOE Patents [OSTI]

    Racki, Daniel J.; Swenson, Clark E.; Bencloski, William A.; Wineman, Arthur L.

    1984-01-01

    A cutting apparatus includes a support table mounted for movement toward and away from a workpiece and carrying a mirror which directs a cutting laser beam onto the workpiece. A carrier is rotatably and pivotally mounted on the support table between the mirror and workpiece and supports a conduit discharging gas toward the point of impingement of the laser beam on the workpiece. Means are provided for rotating the carrier relative to the support table to place the gas discharging conduit in the proper positions for cuts made in different directions on the workpiece.

  4. X-Z-Theta cutting method

    DOE Patents [OSTI]

    Bieg, Lothar F.

    1993-01-12

    A method for machining a workpiece. The method includes the use of a rotary cutting tool mounted on the end of a movable arm. The arm is adapted to move in a plane perpendicular to the axis of rotation of the cutting tool. The cutting tool has cutting teeth to cut chips of material off of the workpiece in a predetermined size and shape to facilitate better removal of the chips from the workpiece. The teeth can be of different type and length to permit the tool to both rough cut and finish cut the workpiece during machining. The total depth of cut is divided by the number of tool teeth, so that the longest tool always performs the finishing cut.

  5. ADVANCED CUTTINGS TRANSPORT STUDY

    SciTech Connect (OSTI)

    Stefan Miska; Troy Reed; Ergun Kuru

    2004-09-30

    part of this project, instrumentation was developed to monitor cuttings beds and characterize foams in the flow loop. An ultrasonic-based monitoring system was developed to measure cuttings bed thickness in the flow loop. Data acquisition software controls the system and processes the data. Two foam generating devices were designed and developed to produce foams with specified quality and texture. The devices are equipped with a bubble recognition system and an in-line viscometer to measure bubble size distribution and foam rheology, respectively. The 5-year project is completed. Future research activities will be under the umbrella of Tulsa University Drilling Research Projects. Currently the flow loop is being used for testing cuttings transport capacity of aqueous and polymer-based foams under elevated pressure and temperature conditions. Subsequently, the effect of viscous sweeps on cuttings transport under elevated pressure and temperature conditions will be investigated using the flow loop. Other projects will follow now that the ''steady state'' phase of the project has been achieved.

  6. Portable cutting apparatus

    DOE Patents [OSTI]

    Gilmore, R.F.

    1984-07-17

    A remotely operable, portable cutting apparatus detachably secured to the workpiece by laterally spaced clamp assemblies engagable with the workpiece on opposite sides of the intended line of cut. A reciprocal cutter head is mounted between the clamp assemblies and is provided with a traveling abrasive cutting wire adapted to sever the workpiece normal to the longitudinal axis thereof. Dust and debris are withdrawn from the cutting area by a vacuum force through a nozzle mounted on the cutting head.

  7. Portable cutting apparatus

    DOE Patents [OSTI]

    Gilmore, Richard F.

    1986-01-01

    A remotely operable, portable cutting apparatus detachably secured to the workpiece by laterally spaced clamp assemblies engageable with the workpiece on opposite sides of the intended line of cut. A reciprocal cutter head is mounted between the clamp assemblies and is provided with a traveling abrasive cutting wire adapted to sever the workpiece normal to the longitudinal axis thereof. Dust and debris are withdrawn from the cutting area by a vacuum force through a nozzle mounted on the cutting head.

  8. Portable cutting apparatus

    DOE Patents [OSTI]

    Gilmore, Richard F.

    1986-04-01

    A remotely operable, portable cutting apparatus detachably secured to the workpiece by laterally spaced clamp assemblies engageable with the workpiece on opposite sides of the intended line of cut. A reciprocal cutter head is mounted between the clamp assemblies and is provided with a traveling abrasive cutting wire adapted to sever the workpiece normal to the longitudinal axis thereof. Dust and debris are withdrawn from the cutting area by a vacuum force through a nozzle mounted on the cutting head.

  9. Microbiopsy/precision cutting devices

    DOE Patents [OSTI]

    Krulevitch, P.A.; Lee, A.P.; Northrup, M.A.; Benett, W.J.

    1999-07-27

    Devices are disclosed for performing tissue biopsy on a small scale (microbiopsy). By reducing the size of the biopsy tool and removing only a small amount of tissue or other material in a minimally invasive manner, the risks, costs, injury and patient discomfort associated with traditional biopsy procedures can be reduced. By using micromachining and precision machining capabilities, it is possible to fabricate small biopsy/cutting devices from silicon. These devices can be used in one of four ways (1) intravascularly, (2) extravascularly, (3) by vessel puncture, and (4) externally. Additionally, the devices may be used in precision surgical cutting. 6 figs.

  10. Microbiopsy/precision cutting devices

    DOE Patents [OSTI]

    Krulevitch, Peter A.; Lee, Abraham P.; Northrup, M. Allen; Benett, William J.

    1999-01-01

    Devices for performing tissue biopsy on a small scale (microbiopsy). By reducing the size of the biopsy tool and removing only a small amount of tissue or other material in a minimally invasive manner, the risks, costs, injury and patient discomfort associated with traditional biopsy procedures can be reduced. By using micromachining and precision machining capabilities, it is possible to fabricate small biopsy/cutting devices from silicon. These devices can be used in one of four ways 1) intravascularly, 2) extravascularly, 3) by vessel puncture, and 4) externally. Additionally, the devices may be used in precision surgical cutting.

  11. Cutting tool form compensation system and method

    DOE Patents [OSTI]

    Barkman, W.E.; Babelay, E.F. Jr.; Klages, E.J.

    1993-10-19

    A compensation system for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along a preprogrammed path during a machining operation utilizes a camera and a vision computer for gathering information at a preselected stage of a machining operation relating to the actual shape and size of the cutting edge of the cutting tool and for altering the preprogrammed path in accordance with detected variations between the actual size and shape of the cutting edge and an assumed size and shape of the cutting edge. The camera obtains an image of the cutting tool against a background so that the cutting tool and background possess contrasting light intensities, and the vision computer utilizes the contrasting light intensities of the image to locate points therein which correspond to points along the actual cutting edge. Following a series of computations involving the determining of a tool center from the points identified along the tool edge, the results of the computations are fed to the controller where the preprogrammed path is altered as aforedescribed. 9 figures.

  12. Cutting tool form compensaton system and method

    DOE Patents [OSTI]

    Barkman, William E.; Babelay, Jr., Edwin F.; Klages, Edward J.

    1993-01-01

    A compensation system for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along a preprogrammed path during a machining operation utilizes a camera and a vision computer for gathering information at a preselected stage of a machining operation relating to the actual shape and size of the cutting edge of the cutting tool and for altering the preprogrammed path in accordance with detected variations between the actual size and shape of the cutting edge and an assumed size and shape of the cutting edge. The camera obtains an image of the cutting tool against a background so that the cutting tool and background possess contrasting light intensities, and the vision computer utilizes the contrasting light intensities of the image to locate points therein which correspond to points along the actual cutting edge. Following a series of computations involving the determining of a tool center from the points identified along the tool edge, the results of the computations are fed to the controller where the preprogrammed path is altered as aforedescribed.

  13. Device for cutting protrusions

    SciTech Connect (OSTI)

    Bzorgi, Fariborz M.

    2011-07-05

    An apparatus for clipping a protrusion of material is provided. The protrusion may, for example, be a bolt head, a nut, a rivet, a weld bead, or a temporary assembly alignment tab protruding from a substrate surface of assembled components. The apparatus typically includes a cleaver having a cleaving edge and a cutting blade having a cutting edge. Generally, a mounting structure configured to confine the cleaver and the cutting blade and permit a range of relative movement between the cleaving edge and the cutting edge is provided. Also typically included is a power device coupled to the cutting blade. The power device is configured to move the cutting edge toward the cleaving edge. In some embodiments the power device is activated by a momentary switch. A retraction device is also generally provided, where the retraction device is configured to move the cutting edge away from the cleaving edge.

  14. Laser cutting plastic materials

    SciTech Connect (OSTI)

    Van Cleave, R.A.

    1980-08-01

    A 1000-watt CO/sub 2/ laser has been demonstrated as a reliable production machine tool for cutting of plastics, high strength reinforced composites, and other nonmetals. More than 40 different plastics have been laser cut, and the results are tabulated. Applications for laser cutting described include fiberglass-reinforced laminates, Kevlar/epoxy composites, fiberglass-reinforced phenolics, nylon/epoxy laminates, ceramics, and disposable tooling made from acrylic.

  15. INTERNAL CUTTING DEVICE

    DOE Patents [OSTI]

    Russell, W.H. Jr.

    1959-06-30

    A device is described for removing material from the interior of a hollow workpiece so as to form a true spherical internal surface in a workpiece, or to cut radial slots of an adjustable constant depth in an already established spherical internal surface. This is accomplished by a spring loaded cutting tool adapted to move axially wherein the entire force urging the tool against the workpiece is derived from the spring. Further features of importance involve the provision of a seal between the workpiece and the cutting device and a suction device for carrying away particles of removed material.

  16. Laser cutting system

    DOE Patents [OSTI]

    Dougherty, Thomas J

    2015-03-03

    A workpiece cutting apparatus includes a laser source, a first suction system, and a first finger configured to guide a workpiece as it moves past the laser source. The first finger includes a first end provided adjacent a point where a laser from the laser source cuts the workpiece, and the first end of the first finger includes an aperture in fluid communication with the first suction system.

  17. ADVANCED CUTTINGS TRANSPORT STUDY

    SciTech Connect (OSTI)

    Stefan Miska; Nicholas Takach; Kaveh Ashenayi; Mengjiao Yu; Ramadan Ahmed; Mark Pickell; Len Volk; Lei Zhou; Zhu Chen; Aimee Washington; Crystal Redden

    2003-09-30

    The Quarter began with installing the new drill pipe, hooking up the new hydraulic power unit, completing the pipe rotation system (Task 4 has been completed), and making the SWACO choke operational. Detailed design and procurement work is proceeding on a system to elevate the drill-string section. The prototype Foam Generator Cell has been completed by Temco and delivered. Work is currently underway to calibrate the system. Literature review and preliminary model development for cuttings transportation with polymer foam under EPET conditions are in progress. Preparations for preliminary cuttings transport experiments with polymer foam have been completed. Two nuclear densitometers were re-calibrated. Drill pipe rotation system was tested up to 250 RPM. Water flow tests were conducted while rotating the drill pipe up to 100 RPM. The accuracy of weight measurements for cuttings in the annulus was evaluated. Additional modifications of the cuttings collection system are being considered in order to obtain the desired accurate measurement of cuttings weight in the annular test section. Cutting transport experiments with aerated fluids are being conducted at EPET, and analyses of the collected data are in progress. The printed circuit board is functioning with acceptable noise level to measure cuttings concentration at static condition using ultrasonic method. We were able to conduct several tests using a standard low pass filter to eliminate high frequency noise. We tested to verify that we can distinguish between different depths of sand in a static bed of sand. We tested with water, air and a mix of the two mediums. Major modifications to the DTF have almost been completed. A stop-flow cell is being designed for the DTF, the ACTF and Foam Generator/Viscometer which will allow us to capture bubble images without the need for ultra fast shutter speeds or microsecond flash system.

  18. Cutting assembly. [Patent application

    DOE Patents [OSTI]

    Treuhaft, M.B.; Oser, M.S.

    1981-06-25

    A mining auger comprises a cutting head carried at one end of a tubular shaft and a plurality of wall segments which in a first position thereof are disposed side by side around said shaft and in a second position thereof are disposed oblique to said shaft. A vane projects outwardly from each wall segment. When the wall segments are in their first position, the vanes together form a substantially continuous helical wall. A cutter is mounted on the peripheral edge of each of the vanes. When the wall segments are in their second position, the cutters on the vanes are disposed radially outward from the perimeter of the cutting head.

  19. Electron beam cutting

    DOE Patents [OSTI]

    Mochel, M.E.; Humphreys, C.J.

    1985-04-02

    A method for the cutting of holes 20 Angstroms in diameter, or lines 20 Angstroms wide in a material having positive ionic conduction by the use of a focused electron probe is described. The holes and lines are stable under ambient conditions. 2 figs.

  20. Electron beam cutting

    DOE Patents [OSTI]

    Mochel, Margaret E.; Humphreys, Colin J.

    1985-04-02

    A method for the cutting of holes 20 Angstroms in diameter, or lines 20 Angstroms wide in a material having positive ionic conduction by the use of a focused electron probe is described. The holes and lines are stable under ambient conditions.

  1. Laser cutting nozzle

    DOE Patents [OSTI]

    Ramos, Terry J.

    1984-01-01

    A laser cutting nozzle for use with a laser cutting apparatus directing a focused beam to a spot on a work piece. The nozzle has a cylindrical body with a conical tip which together have a conically shaped hollow interior with the apex at a small aperture through the tip. The conical hollow interior is shaped to match the profile of the laser beam, at full beamwidth, which passes through the nozzle to the work piece. A plurality of gas inlet holes extend through the body to the hollow interior and are oriented to produce a swirling flow of gas coaxially through the nozzle and out the aperture, aligned with the laser beam, to the work piece. BACKGROUND OF THE INVENTION

  2. Laser cutting nozzle

    DOE Patents [OSTI]

    Ramos, T.J.

    1982-09-30

    A laser cutting nozzle for use with a laser cutting apparatus directing a focused beam to a spot on a work piece. The nozzle has a cylindrical body with a conical tip which together have a conically shaped hollow interior with the apex at a small aperture through the tip. The conical hollow interior is shaped to match the profile of the laser beam, at full beamwidth, which passes through the nozzle to the work piece. A plurality of gas inlet holes extend through the body to the hollow interior and are oriented to produce a swirling flow of gas coaxially through the nozzle and out the aperture, aligned with the laser beam, to the work piece.

  3. ADVANCED CUTTINGS TRANSPORT STUDY

    SciTech Connect (OSTI)

    Troy Reed; Stefan Miska; Nicholas Takach; Kaveh Ashenayi; Mark Pickell; Len Volk; Mike Volk; Lei Zhou; Zhu Chen; Crystal Redden; Aimee Washington

    2003-07-30

    This Quarter has been divided between running experiments and the installation of the drill-pipe rotation system. In addition, valves and piping were relocated, and three viewports were installed. Detailed design work is proceeding on a system to elevate the drill-string section. Design of the first prototype version of a Foam Generator has been finalized, and fabrication is underway. This will be used to determine the relationship between surface roughness and ''slip'' of foams at solid boundaries. Additional cups and rotors are being machined with different surface roughness. Some experiments on cuttings transport with aerated fluids have been conducted at EPET. Theoretical modeling of cuttings transport with aerated fluids is proceeding. The development of theoretical models to predict frictional pressure losses of flowing foam is in progress. The new board design for instrumentation to measure cuttings concentration is now functioning with an acceptable noise level. The ultrasonic sensors are stable up to 190 F. Static tests with sand in an annulus indicate that the system is able to distinguish between different sand concentrations. Viscometer tests with foam, generated by the Dynamic Test Facility (DTF), are continuing.

  4. CUTTING AND WEDGING JACKET REMOVER

    DOE Patents [OSTI]

    Freedman, M.; Raynor, S.

    1959-04-01

    A tool is presented for stripping cladded jackets from fissionable fuel elements. The tool is a tube which fits closely around the jacket and which has two cutting edges at opposite sides of one end. These cutting edges are adjusted to penetrate only the jacket so that by moving the edges downward the jacket is cut into two pieces.

  5. Metal Cutting for Large Component Removal

    SciTech Connect (OSTI)

    Hulick, Robert M.

    2008-01-15

    Decommissioning of commercial nuclear power plants presents technological challenges. One major challenge is the removal of large components mainly consisting of the reactor vessel, steam generators and pressurizer. In order to remove and package these large components nozzles must be cut from the reactor vessel to precise tolerances. In some cases steam generators must be segmented for size and weight reduction. One innovative technology that has been used successfully at several commercial nuclear plant decommissioning is diamond wire sawing. Diamond wire sawing is performed by rotating a cable with diamond segments attached using a flywheel approximately 24 inches in diameter driven remotely by a hydraulic pump. Tension is provided using a gear rack drive which also takes up the slack in the wire. The wire is guided through the use of pulleys keeps the wire in a precise location. The diamond wire consists of 1/4 inch aircraft cable with diamond beads strung over the cable separated by springs and brass crimps. Standard wire contains 40 diamond beads per meter and can be made to any length. Cooling the wire and controlling the spread of contamination presents significant challenges. Under normal circumstances the wire is cooled and the cutting kerf cleaned by using water. In some cases of reactor nozzle cuts the use of water is prohibited because it cannot be controlled. This challenge was solved by using liquid Carbon Dioxide as the cooling agent. The liquid CO{sub 2} is passed through a special nozzle which atomizes the liquid into snowflakes which is introduced under pressure to the wire. The snowflakes attach to the wire keeping it cool and to the metal shavings. As the CO{sub 2} and metal shavings are released from the wire due to its fast rotation, the snowflakes evaporate leaving only the fine metal shavings as waste. Secondary waste produced is simply the small volume of fine metal shavings removed from the cut surface. Diamond wire sawing using CO{sub 2

  6. Photochemical cutting of fabrics

    DOE Patents [OSTI]

    Piltch, Martin S.

    1994-01-01

    Apparatus for the cutting of garment patterns from one or more layers of fabric. A laser capable of producing laser light at an ultraviolet wavelength is utilized to shine light through a pattern, such as a holographic phase filter, and through a lens onto the one or more layers of fabric. The ultraviolet laser light causes rapid photochemical decomposition of the one or more layers of fabric, but only along the pattern. The balance of the fabric of the one or more layers of fabric is undamaged.

  7. Cuttings Analysis | Open Energy Information

    Open Energy Info (EERE)

    And Deep Electrical Sounding Cuttings Analysis At Long Valley Caldera Geothermal Area (Smith & Suemnicht, 1991) Long Valley Caldera Geothermal Area 1985 1988 Oxygen Isotope...

  8. Corner-cutting mining assembly

    DOE Patents [OSTI]

    Bradley, John A.

    1983-01-01

    A mining assembly includes a primary rotary cutter mounted on one end of a support shaft and four secondary rotary cutters carried on the same support shaft and positioned behind the primary cutters for cutting corners in the hole cut by the latter.

  9. Microwave assisted hard rock cutting

    DOE Patents [OSTI]

    Lindroth, David P.; Morrell, Roger J.; Blair, James R.

    1991-01-01

    An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).

  10. Slag capture and removal during laser cutting

    DOE Patents [OSTI]

    Brown, Clyde O.

    1984-05-08

    Molten metal removed from a workpiece in a laser cutting operation is blown away from the cutting point by a gas jet and collected on an electromagnet.

  11. Shroud for a submerged jet cutting nozzle

    DOE Patents [OSTI]

    Schwab, Thomas L.

    1978-01-01

    A shroud for a submerged jet cutting nozzle is described which separates the jet from surrounding fluid environment and enhances the cutting effect.

  12. Hypervelocity cutting machine and method

    DOE Patents [OSTI]

    Powell, James R.; Reich, Morris

    1996-11-12

    A method and machine 14 are provided for cutting a workpiece 12 such as concrete. A gun barrel 16 is provided for repetitively loading projectiles 22 therein and is supplied with a pressurized propellant from a storage tank 28. A thermal storage tank 32,32A is disposed between the propellant storage tank 28 and the gun barrel 16 for repetitively receiving and heating propellant charges which are released in the gun barrel 16 for repetitively firing projectiles 22 therefrom toward the workpiece 12. In a preferred embodiment, hypervelocity of the projectiles 22 is obtained for cutting the concrete workpiece 12 by fracturing thereof.

  13. Hypervelocity cutting machine and method

    DOE Patents [OSTI]

    Powell, J.R.; Reich, M.

    1996-11-12

    A method and machine are provided for cutting a workpiece such as concrete. A gun barrel is provided for repetitively loading projectiles therein and is supplied with a pressurized propellant from a storage tank. A thermal storage tank is disposed between the propellant storage tank and the gun barrel for repetitively receiving and heating propellant charges which are released in the gun barrel for repetitively firing projectiles therefrom toward the workpiece. In a preferred embodiment, hypervelocity of the projectiles is obtained for cutting the concrete workpiece by fracturing thereof. 10 figs.

  14. Automated internal pipe cutting device

    DOE Patents [OSTI]

    Godlewski, William J.; Haffke, Gary S.; Purvis, Dale; Bashar, Ronald W.; Jones, Stewart D.; Moretti, Jr., Henry; Pimentel, James

    2003-01-21

    The invention is a remotely controlled internal pipe cutting device primarily used for cutting pipes where the outside of the pipe is inaccessible at the line where the cut is to be made. The device includes an axial ram within a rotational cylinder which is enclosed in a housing. The housing is adapted for attachment to an open end of the pipe and for supporting the ram and cylinder in cantilever fashion within the pipe. A radially movable cutter, preferably a plasma arc torch, is attached to the distal end of the ram. A drive mechanism, containing motors and mechanical hardware for operating the ram and cylinder, is attached to the proximal end of the housing. The ram and cylinder provide for moving the cutter axially and circumferentially, and a cable assembly attached to a remote motor provide for the movement of the cutter radially, within the pipe. The control system can be adjusted and operated remotely to control the position and movement of the cutter to obtain the desired cut. The control system can also provide automatic standoff control for a plasma arc torch.

  15. Petrophysical corner - calculating water cut

    SciTech Connect (OSTI)

    Elphick, R.Y. )

    1990-02-01

    The problem of determining the amount of water cut that can be expected from a well is discussed in conjunction with a program for making this calculation. The program was written for Amiga, Apple Macintosh, and MS DOS personal computers and source code for the program is provided.

  16. Aqueous cutting fluid for machining fissionable materials

    DOE Patents [OSTI]

    Duerksen, Walter K.; Googin, John M.; Napier, Jr., Bradley

    1984-01-01

    The present invention is directed to a cutting fluid for machining fissionable material. The cutting fluid is formed of glycol, water and boron compound in an adequate concentration for effective neutron attenuation so as to inhibit criticality incidents during machining.

  17. Free-piston cutting machine

    DOE Patents [OSTI]

    Ciccarelli, Gaby; Subudhi, Manomohan; Hall, Robert E.

    2000-01-01

    A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.

  18. Investigations of initiation spot size effects

    SciTech Connect (OSTI)

    Clarke, Steven A; Akinci, Adrian A; Leichty, Gary; Schaffer, Timothy; Murphy, Michael J; Munger, Alan; Thomas, Keith A

    2010-01-01

    As explosive components become smaller, a greater understanding of the effect of initiation spot size on detonation becomes increasingly critical. A series of tests of the effect of initiation spot size will be described. A series of DOI (direct optical initiation) detonators with initiation spots sizes from {approx}50 um to 1000um have been tested to determine laser parameters for threshold firing of low density PETN pressings. Results will be compared with theoretical predictions. Outputs of the initiation source (DOI ablation) have been characterized by a suite of diagnostics including PDV and schlieren imaging. Outputs of complete detonators have been characterized using PDV, streak, and/or schlieren imaging. At present, we have not found the expected change in the threshold energy to spot size relationship for DOI type detonators found in similar earlier for projectiles, slappers and EBWs. New detonators designs (Type C) are currently being tested that will allow the determination of the threshold for spot sizes from 250 um to 105um, where we hope to see change in the threshold vs. spot size relationship. Also, one test of an extremely small diameter spot size (50um) has resulted in preliminary NoGo only results even at energy densities as much as 8 times the energy density of the threshold results presented here. This gives preliminary evidence that 50um spot may be beyond the critical initiation diameter. The constant threshold energy to spot size relationship in the data to date does however still give some insight into the initiation mechanism of DOI detonators. If the DOI initiation mechanism were a 1D mechanism similar to a slapper or a flyer impact, the expected inflection point in the graph would have been between 300um and 500um diameter spot size, within the range of the data presented here. The lack of that inflection point indicates that the DOI initiation mechanism is more likely a 2D mechanism similar to a sphere or rod projectile. We expect to

  19. Cutting sound enhancement system for mining machines

    DOE Patents [OSTI]

    Leigh, Michael C.; Kwitowski, August J.

    1992-01-01

    A cutting sound enhancement system (10) for transmitting an audible signal from the cutting head (101) of a piece of mine machinery (100) to an operator at a remote station (200), wherein, the operator using a headphone unit (14) can monitor the difference in sounds being made solely by the cutting head (101) to determine the location of the roof, floor, and walls of a coal seam (50).

  20. Advanced cryogenics for cutting tools. Final report

    SciTech Connect (OSTI)

    Lazarus, L.J.

    1996-10-01

    The purpose of the investigation was to determine if cryogenic treatment improved the life and cost effectiveness of perishable cutting tools over other treatments or coatings. Test results showed that in five of seven of the perishable cutting tools tested there was no improvement in tool life. The other two tools showed a small gain in tool life, but not as much as when switching manufacturers of the cutting tool. The following conclusions were drawn from this study: (1) titanium nitride coatings are more effective than cryogenic treatment in increasing the life of perishable cutting tools made from all cutting tool materials, (2) cryogenic treatment may increase tool life if the cutting tool is improperly heat treated during its origination, and (3) cryogenic treatment was only effective on those tools made from less sophisticated high speed tool steels. As a part of a recent detailed investigation, four cutting tool manufacturers and two cutting tool laboratories were queried and none could supply any data to substantiate cryogenic treatment of perishable cutting tools.

  1. Cross-cutting Technologies for Advanced Biofuels

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

    Cross-cutting Technologies for Advanced Biofuels Report-Out Webinar February 9, 2012 Adam ... Cost Largest cost contributor to biofuels production Impact of Harvesting...

  2. Cutting Wasteful Spending While Protecting Our Priorities

    Broader source: Energy.gov [DOE]

    Congress must work together on a budget that cuts wasteful spending while supporting jobs, the economy, and middle-class families.

  3. Savannah River Site Museum Ribbon Cutting

    Broader source: Energy.gov [DOE]

    A ribbon cutting ceremony marked the opening of the new SRS Museum, on October 27, 2014, at the former Dibble Library in Aiken, South Carolina.

  4. Genome analysis of Daldinia eschscholtzii strains UM 1400 and UM 1020, wood-decaying fungi isolated from human hosts

    SciTech Connect (OSTI)

    Chan, Chai Ling; Yew, Su Mei; Ngeow, Yun Fong; Na, Shiang Ling; Lee, Kok Wei; Hoh, Chee-Choong; Yee, Wai-Yan; Ng, Kee Peng

    2015-11-18

    Background: Daldinia eschscholtzii is a wood-inhabiting fungus that causes wood decay under certain conditions. It has a broad host range and produces a large repertoire of potentially bioactive compounds. However, there is no extensive genome analysis on this fungal species. Results: Two fungal isolates (UM 1400 and UM 1020) from human specimens were identified as Daldinia eschscholtzii by morphological features and ITS-based phylogenetic analysis. Both genomes were similar in size with 10,822 predicted genes in UM 1400 (35.8 Mb) and 11,120 predicted genes in UM 1020 (35.5 Mb). A total of 751 gene families were shared among both UM isolates, including gene families associated with fungus-host interactions. In the CAZyme comparative analysis, both genomes were found to contain arrays of CAZyme related to plant cell wall degradation. Genes encoding secreted peptidases were found in the genomes, which encode for the peptidases involved in the degradation of structural proteins in plant cell wall. In addition, arrays of secondary metabolite backbone genes were identified in both genomes, indicating of their potential to produce bioactive secondary metabolites. Both genomes also contained an abundance of gene encoding signaling components, with three proposed MAPK cascades involved in cell wall integrity, osmoregulation, and mating/filamentation. Besides genomic evidence for degrading capability, both isolates also harbored an array of genes encoding stress response proteins that are potentially significant for adaptation to living in the hostile environments. In conclusion: Our genomic studies provide further information for the biological understanding of the D. eschscholtzii and suggest that these wood-decaying fungi are also equipped for adaptation to adverse environments in the human host.

  5. Genome analysis of Daldinia eschscholtzii strains UM 1400 and UM 1020, wood-decaying fungi isolated from human hosts

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

    Chan, Chai Ling; Yew, Su Mei; Ngeow, Yun Fong; Na, Shiang Ling; Lee, Kok Wei; Hoh, Chee-Choong; Yee, Wai-Yan; Ng, Kee Peng

    2015-11-18

    Background: Daldinia eschscholtzii is a wood-inhabiting fungus that causes wood decay under certain conditions. It has a broad host range and produces a large repertoire of potentially bioactive compounds. However, there is no extensive genome analysis on this fungal species. Results: Two fungal isolates (UM 1400 and UM 1020) from human specimens were identified as Daldinia eschscholtzii by morphological features and ITS-based phylogenetic analysis. Both genomes were similar in size with 10,822 predicted genes in UM 1400 (35.8 Mb) and 11,120 predicted genes in UM 1020 (35.5 Mb). A total of 751 gene families were shared among both UM isolates,more » including gene families associated with fungus-host interactions. In the CAZyme comparative analysis, both genomes were found to contain arrays of CAZyme related to plant cell wall degradation. Genes encoding secreted peptidases were found in the genomes, which encode for the peptidases involved in the degradation of structural proteins in plant cell wall. In addition, arrays of secondary metabolite backbone genes were identified in both genomes, indicating of their potential to produce bioactive secondary metabolites. Both genomes also contained an abundance of gene encoding signaling components, with three proposed MAPK cascades involved in cell wall integrity, osmoregulation, and mating/filamentation. Besides genomic evidence for degrading capability, both isolates also harbored an array of genes encoding stress response proteins that are potentially significant for adaptation to living in the hostile environments. In conclusion: Our genomic studies provide further information for the biological understanding of the D. eschscholtzii and suggest that these wood-decaying fungi are also equipped for adaptation to adverse environments in the human host.« less

  6. Corner-cutting mining assembly

    DOE Patents [OSTI]

    Bradley, J.A.

    1981-07-01

    This invention resulted from a contract with the United States Department of Energy and relates to a mining tool. More particularly, the invention relates to an assembly capable of drilling a hole having a square cross-sectional shape with radiused corners. In mining operations in which conventional auger-type drills are used to form a series of parallel, cylindrical holes in a coal seam, a large amount of coal remains in place in the seam because the shape of the holes leaves thick webs between the holes. A higher percentage of coal can be mined from a seam by a means capable of drilling holes having a substantially square cross section. It is an object of this invention to provide an improved mining apparatus by means of which the amount of coal recovered from a seam deposit can be increased. Another object of the invention is to provide a drilling assembly which cuts corners in a hole having a circular cross section. These objects and other advantages are attained by a preferred embodiment of the invention.

  7. Drilling subsurface wellbores with cutting structures

    DOE Patents [OSTI]

    Mansure, Arthur James; Guimerans, Rosalvina Ramona

    2010-11-30

    A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into the wellbore formed by the drill bit.

  8. Laser cutting with chemical reaction assist

    DOE Patents [OSTI]

    Gettemy, D.J.

    1992-11-17

    A method is described for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation. 1 figure.

  9. Laser cutting with chemical reaction assist

    DOE Patents [OSTI]

    Gettemy, Donald J.

    1992-01-01

    A method for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation.

  10. Imaging, cutting, and collecting instrument and method

    DOE Patents [OSTI]

    Tench, Robert J.; Siekhaus, Wigbert J.; Balooch, Mehdi; Balhorn, Rodney L.; Allen, Michael J.

    1995-01-01

    Instrumentation and techniques to image small objects, such as but not limited to individual human chromosomes, with nanometer resolution, to cut-off identified parts of such objects, to move around and manipulate such cut-off parts on the substrate on which they are being imaged to predetermined locations on the substrate, and to remove the cut-off parts from the substrate. This is accomplished using an atomic force microscope (AFM) and by modification of the conventional cantilever stylus assembly of an AFM, such that plural cantilevers are used with either sharp-tips or knife-edges thereon. In addition, the invention can be utilized for measuring hardness of materials.

  11. Diamond Wire Cutting of the Tokamak Fusion Test Reactor

    SciTech Connect (OSTI)

    Keith Rule; Erik Perry; Robert Parsells

    2003-01-31

    The Tokamak Fusion Test Reactor (TFTR) is a one-of-a-kind, tritium-fueled fusion research reactor that ceased operation in April 1997. As a result, decommissioning commenced in October 1999. The 100 cubic meter volume of the donut-shaped reactor makes it the second largest fusion reactor in the world. The deuterium-tritium experiments resulted in contaminating the vacuum vessel with tritium and activating the materials with 14 MeV neutrons. The total tritium content within the vessel is in excess of 7,000 Curies, while dose rates approach 50 mRem/hr. These radiological hazards along with the size of the tokamak present a unique and challenging task for dismantling. Engineers at the Princeton Plasma Physics Laboratory (PPPL) decided to investigate an alternate, innovative approach for dismantlement of the TFTR vacuum vessel: diamond wire cutting technology. In August 1999, this technology was successfully demonstrated and evaluated on vacuum vessel surrogates. Subsequently, the technology was improved and redesigned for the actual cutting of the vacuum vessel. Ten complete cuts were performed in a 6-month period to complete the removal of this unprecedented type of D&D (Decontamination and Decommissioning) activity.

  12. DIAMOND WIRE CUTTING OF THE TOKAMAK FUSION TEST REACTOR

    SciTech Connect (OSTI)

    Rule, Keith; Perry, Erik; Parsells, Robert

    2003-02-27

    The Tokamak Fusion Test Reactor (TFTR) is a one-of-a-kind, tritium-fueled fusion research reactor that ceased operation in April 1997. As a result, decommissioning commenced in October 1999. The 100 cubic meter volume of the donut-shaped reactor makes it the second largest fusion reactor in the world. The deuterium-tritium experiments resulted in contaminating the vacuum vessel with tritium and activating the materials with 14 Mev neutrons. The total tritium content within the vessel is in excess of 7,000 Curies while dose rates approach 50 mRem/hr. These radiological hazards along with the size of the Tokamak present a unique and challenging task for dismantling. Engineers at the Princeton Plasma Physics Laboratory (PPPL) decided to investigate an alternate, innovative approach for dismantlement of the TFTR vacuum vessel: diamond wire cutting technology. In August 1999, this technology was successfully demonstrated and evaluated on vacuum vessel surrogates. Subsequently, the techno logy was improved and redesigned for the actual cutting of the vacuum vessel. 10 complete cuts were performed in a 6-month period to complete the removal of this unprecedented type of D&D activity.

  13. Comparative Evaluation of Cutting Methods of Activated Concrete from Nuclear Power Plant Decommissioning - 13548

    SciTech Connect (OSTI)

    Kim, HakSoo; Chung, SungHwan; Maeng, SungJun

    2013-07-01

    The amount of radioactive wastes from decommissioning of a nuclear power plant varies greatly depending on factors such as type and size of the plant, operation history, decommissioning options, and waste treatment and volume reduction methods. There are many methods to decrease the amount of decommissioning radioactive wastes including minimization of waste generation, waste reclassification through decontamination and cutting methods to remove the contaminated areas. According to OECD/NEA, it is known that the radioactive waste treatment and disposal cost accounts for about 40 percentage of the total decommissioning cost. In Korea, it is needed to reduce amount of decommissioning radioactive waste due to high disposal cost, about $7,000 (as of 2010) per a 200 liter drum for the low- and intermediate-level radioactive waste (LILW). In this paper, cutting methods to minimize the radioactive waste of activated concrete were investigated and associated decommissioning cost impact was assessed. The cutting methods considered are cylindrical and volume reductive cuttings. The study showed that the volume reductive cutting is more cost-effective than the cylindrical cutting. Therefore, the volume reductive cutting method can be effectively applied to the activated bio-shield concrete. (authors)

  14. FTA Basic Event & Cut Set Ranking.

    Energy Science and Technology Software Center (OSTI)

    1999-05-04

    Version 00 IMPORTANCE computes various measures of probabilistic importance of basic events and minimal cut sets to a fault tree or reliability network diagram. The minimal cut sets, the failure rates and the fault duration times (i.e., the repair times) of all basic events contained in the minimal cut sets are supplied as input data. The failure and repair distributions are assumed to be exponential. IMPORTANCE, a quantitative evaluation code, then determines the probability ofmore » the top event and computes the importance of minimal cut sets and basic events by a numerical ranking. Two measures are computed. The first describes system behavior at one point in time; the second describes sequences of failures that cause the system to fail in time. All measures are computed assuming statistical independence of basic events. In addition, system unavailability and expected number of system failures are computed by the code.« less

  15. Baltimore Vet Cuts Energy Bills With Solar

    Broader source: Energy.gov [DOE]

    Baltimore resident and disabled veteran Paul Bennett shares his experience utilizing state and federal grants and tax credits to install solar panels on his historic row home and cut energy costs.

  16. New Refrigeration Technology Could Substantially Cut Energy Use...

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

    New Refrigeration Technology Could Substantially Cut Energy Use New Refrigeration Technology Could Substantially Cut Energy Use April 1, 2016 - 11:40pm Addthis New Energy ...

  17. Fault Tree Cut Set System Performance.

    Energy Science and Technology Software Center (OSTI)

    2000-02-21

    Version 00 SIGPI computes the probabilistic performance of complex systems by combining cut set or other binary product data with probability information on each basic event. SIGPI is designed to work with either coherent systems, where the system fails when certain combinations of components fail, or noncoherent systems, where at least one cut set occurs only if at least one component of the system is operating properly. The program can handle conditionally independent components, dependentmore » components, or a combination of component types and has been used to evaluate responses to environmental threats and seismic events. The three data types that can be input are cut set data in disjoint normal form, basic component probabilities for independent basic components, and mean and covariance data for statistically dependent basic components.« less

  18. Imaging, cutting, and collecting instrument and method

    DOE Patents [OSTI]

    Tench, R.J.; Siekhaus, W.J.; Balooch, M.; Balhorn, R.L.; Allen, M.J.

    1995-10-31

    Instrumentation and techniques are described to image small objects, such as but not limited to individual human chromosomes, with nanometer resolution. This instrument and method are also used to cut-off identified parts of objects, to move around and manipulate the cut-off parts on the substrate on which they are being imaged to predetermined locations on the substrate, and to remove the cut-off parts from the substrate. This is accomplished using an atomic force microscope (AFM) and by modification of the conventional cantilever stylus assembly of an AFM. The plural cantilevers are used with either sharp-tips or knife-edges. In addition, the invention can be utilized for measuring the hardness of materials. 10 figs.

  19. Cutting Biofuel Production Costs | The Ames Laboratory

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

    Department of Energy Cut Gas Costs This Holiday Traveling Season with Three Easy Tips Cut Gas Costs This Holiday Traveling Season with Three Easy Tips November 26, 2013 - 9:23am Addthis Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Jason

  20. Alternative Fuels Data Center: Propane Mowers Help National Park Cut

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Emissions Propane Mowers Help National Park Cut Emissions to someone by E-mail Share Alternative Fuels Data Center: Propane Mowers Help National Park Cut Emissions on Facebook Tweet about Alternative Fuels Data Center: Propane Mowers Help National Park Cut Emissions on Twitter Bookmark Alternative Fuels Data Center: Propane Mowers Help National Park Cut Emissions on Google Bookmark Alternative Fuels Data Center: Propane Mowers Help National Park Cut Emissions on Delicious Rank Alternative

  1. Cutting-Edge Science Drives SunShot Projects | Department of Energy

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

    Cutting-Edge Science Drives SunShot Projects Cutting-Edge Science Drives SunShot Projects August 4, 2016 - 9:45am Addthis Giant Leap Technologies uses microfluidics to bend light toward a solar at the top of the plant. Each solar thermal power plant shown is a football field in size. | <em>Photo courtesy of Giant Leap Technologies</em> Giant Leap Technologies uses microfluidics to bend light toward a solar at the top of the plant. Each solar thermal power plant shown is a football

  2. Classical and quantum chaos in a circular billiard with a straight cut

    SciTech Connect (OSTI)

    Ree, S.; Reichl, L.E. [Center for Studies in Statistical Mechanics and Complex Systems, The University of Texas at Austin, Austin, Texas 78712 (United States)] [Center for Studies in Statistical Mechanics and Complex Systems, The University of Texas at Austin, Austin, Texas 78712 (United States)

    1999-08-01

    We study classical and quantum dynamics of a particle in a circular billiard with a straight cut. Classically, this system can be integrable, nonintegrable with {ital soft chaos}, or nonintegrable with {ital hard chaos} as we vary the size of the cut. We plot Poincar{acute e} surfaces of section to study chaos. Quantum mechanically, we look at Husimi plots, and also use the quantum web, the technique primarily used in spin systems so far, to try to see differences in quantum manifestations of soft and hard chaos. {copyright} {ital 1999} {ital The American Physical Society}

  3. DOE Awards Supercomputer Access to Cutting-Edge Projects | U.S. DOE Office

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

    of Science (SC) DOE Awards Supercomputer Access to Cutting-Edge Projects News News Home Featured Articles Science Headlines 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Highlights Presentations & Testimony News Archives Communications and Public Affairs Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 12.18.08 DOE Awards Supercomputer Access to Cutting-Edge Projects Print Text Size: A

  4. CRAD, Welding, Cutting and Brazing Assessment Plan

    Broader source: Energy.gov [DOE]

    This assessment is to verify hot work requirements associated with welding, cutting, burning, brazing, grinding and other spark- or flame-producing operations have been implemented. Verify that the requirements implemented are appropriate for preventing loss of life and property from fire, and personal injury from contact with or exposure to molten metals, vapors, radiant energy, injurious rays and sparks.

  5. Breakthrough Furnace Can Cut Solar Industry Costs

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

    Furnace can Cut Solar Industry Costs A game-changing Optical Cavity Furnace (OCF)-developed by the National Renew- able Energy Laboratory (NREL) with funding from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy-uses optics to heat and purify solar cells at unmatched precision, while also boosting the cells' efficiency. As solar cells move through a manufacturer's production line, they must be oxidized, annealed, purified, diffused, etched, and layered. Heat is an

  6. Asymmetrically cut crystals for synchrotron radiation monochromators

    SciTech Connect (OSTI)

    Sanchez del Rio, M. ); Cerrina, F. )

    1992-01-01

    Asymmetrically cut crystals are interesting for use in synchrotron radiation monochromators because of their good energy resolution characteristics and their focusing properties. Ray tracing codes, such as SHADOW, are very efficient in the design and development of new optical devices. In order to determine the convenience of using asymmetrically cut crystals for x-ray monochromators, SHADOW has been extended to include these kinds of crystals. The physical approach to ray tracing asymmetrically cut crystals is based on the coexistence of two periodic structures. One of these is the bulk periodic structure of the Bragg planes. Such a structure determines the existence of a rocking curve near the Bragg condition, and is implemented in SHADOW following the Darwin--Prins formalism of the dynamical theory of diffraction. The second periodic structure is a one-dimensional grating on the crystal surface, formed by the truncation of the lattice planes with the surface. This grating is responsible for the focusing properties of these crystals and plays an essential role in determining the trajectory of the rays. The combination of an asymmetric crystal and a nonplanar surface can be easily achieved by bending (Johann case) to provide improved properties. More complex cases such as the ground-bent crystals (i.e., Johansson geometry) can be considered as a particular case of asymmetrical crystals in which the angle between the Bragg planes and the surface change along the crystal surface. All these cases have been implemented in SHADOW.

  7. Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen...

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

    Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen-Enriched Air Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen-Enriched Air 2005 Diesel Engine ...

  8. Rooftop Solar Challenge to Cut Solar's Red Tape | Department...

    Energy Savers [EERE]

    Rooftop Solar Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor ...

  9. Savannah River Site Cuts Ribbon for New Salt Waste Processing...

    Office of Environmental Management (EM)

    Savannah River Site Cuts Ribbon for New Salt Waste Processing Facility Savannah River Site Cuts Ribbon for New Salt Waste Processing Facility June 30, 2016 - 12:55pm Addthis DOE ...

  10. Cuttings Analysis At Coso Geothermal Area (1977) | Open Energy...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique...

  11. Cuttings Analysis At Geysers Area (Lambert & Epstein, 1992) ...

    Open Energy Info (EERE)

    (Lambert & Epstein, 1992) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Geysers Area (Lambert & Epstein, 1992)...

  12. Micromachined cutting blade formed from {211}-oriented silicon

    DOE Patents [OSTI]

    Fleming, James G.; Fleming, legal representative, Carol; Sniegowski, Jeffry J.; Montague, Stephen

    2011-08-09

    A cutting blade is disclosed fabricated of micromachined silicon. The cutting blade utilizes a monocrystalline silicon substrate having a {211} crystalline orientation to form one or more cutting edges that are defined by the intersection of {211} crystalline planes of silicon with {111} crystalline planes of silicon. This results in a cutting blade which has a shallow cutting-edge angle .theta. of 19.5.degree.. The micromachined cutting blade can be formed using an anisotropic wet etching process which substantially terminates etching upon reaching the {111} crystalline planes of silicon. This allows multiple blades to be batch fabricated on a common substrate and separated for packaging and use. The micromachined cutting blade, which can be mounted to a handle in tension and optionally coated for increased wear resistance and biocompatibility, has multiple applications including eye surgery (LASIK procedure).

  13. Micromachined cutting blade formed from {211}-oriented silicon

    DOE Patents [OSTI]

    Fleming, James G.; Sniegowski, Jeffry J.; Montague, Stephen

    2003-09-09

    A cutting blade is disclosed fabricated of micromachined silicon. The cutting blade utilizes a monocrystalline silicon substrate having a {211} crystalline orientation to form one or more cutting edges that are defined by the intersection of {211} crystalline planes of silicon with {111} crystalline planes of silicon. This results in a cutting blade which has a shallow cutting-edge angle .theta. of 19.5.degree.. The micromachined cutting blade can be formed using an anisotropic wet etching process which substantially terminates etching upon reaching the {111} crystalline planes of silicon. This allows multiple blades to be batch fabricated on a common substrate and separated for packaging and use. The micromachined cutting blade, which can be mounted to a handle in tension and optionally coated for increased wear resistance and biocompatibility, has multiple applications including eye surgery (LASIK procedure).

  14. DEVELOPMENT OF GLASS AND GLASS CERAMIC PROPPANTS FROM GAS SHALE WELL DRILL CUTTINGS

    SciTech Connect (OSTI)

    Johnson, F.; Fox, K.

    2013-10-02

    The objective of this study was to develop a method of converting drill cuttings from gas shale wells into high strength proppants via flame spheroidization and devitrification processing. Conversion of drill cuttings to spherical particles was only possible for small particle sizes (< 53 {micro}m) using a flame former after a homogenizing melting step. This size limitation is likely to be impractical for application as conventional proppants due to particle packing characteristics. In an attempt to overcome the particle size limitation, sodium and calcium were added to the drill cuttings to act as fluxes during the spheroidization process. However, the flame former remained unable to form spheres from the fluxed material at the relatively large diameters (0.5 - 2 mm) targeted for proppants. For future work, the flame former could be modified to operate at higher temperature or longer residence time in order to produce larger, spherical materials. Post spheroidization heat treatments should be investigated to tailor the final phase assemblage for high strength and sufficient chemical durability.

  15. Tool for cutting insulation from electrical cables

    DOE Patents [OSTI]

    Harless, Charles E.; Taylor, Ward G.

    1978-01-01

    This invention is an efficient hand tool for precisely slitting the sheath of insulation on an electrical cable--e.g., a cable two inches in diameter--in a manner facilitating subsequent peeling or stripping of the insulation. The tool includes a rigid frame which is slidably fitted on an end section of the cable. The frame carries a rigidly affixed handle and an opposed, elongated blade-and-handle assembly. The blade-and-handle assembly is pivotally supported by a bracket which is slidably mounted on the frame for movement toward and away from the cable, thus providing an adjustment for the depth of cut. The blade-and-handle assembly is mountable to the bracket in two pivotable positions. With the assembly mounted in the first position, the tool is turned about the cable to slit the insulation circumferentially. With the assembly mounted in the second position, the tool is drawn along the cable to slit the insulation axially. When cut both circumferentially and axially, the insulation can easily be peeled from the cable.

  16. The contour method cutting assumption: error minimization and correction

    SciTech Connect (OSTI)

    Prime, Michael B; Kastengren, Alan L

    2010-01-01

    The recently developed contour method can measure 2-D, cross-sectional residual-stress map. A part is cut in two using a precise and low-stress cutting technique such as electric discharge machining. The contours of the new surfaces created by the cut, which will not be flat if residual stresses are relaxed by the cutting, are then measured and used to calculate the original residual stresses. The precise nature of the assumption about the cut is presented theoretically and is evaluated experimentally. Simply assuming a flat cut is overly restrictive and misleading. The critical assumption is that the width of the cut, when measured in the original, undeformed configuration of the body is constant. Stresses at the cut tip during cutting cause the material to deform, which causes errors. The effect of such cutting errors on the measured stresses is presented. The important parameters are quantified. Experimental procedures for minimizing these errors are presented. An iterative finite element procedure to correct for the errors is also presented. The correction procedure is demonstrated on experimental data from a steel beam that was plastically bent to put in a known profile of residual stresses.

  17. Photovoltaic Supply Chain and Cross-Cutting Technologies Round 2 |

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

    Department of Energy Technology to Market » Photovoltaic Supply Chain and Cross-Cutting Technologies Round 2 Photovoltaic Supply Chain and Cross-Cutting Technologies Round 2 Four projects are working to accelerate the development of revolutionary products or processes for the photovoltaic (PV) industry through the High Impact Supply Chain R&D for PV Technologies/Systems program, which represents the second round of PV Supply Chain and Cross-Cutting Technologies funding. These projects

  18. Ribbon cutting marks chemistry laboratory upgrades at Northern New Mexico

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

    College Ribbon cutting marks chemistry laboratory upgrades at Northern New Mexico College Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Ribbon cutting marks chemistry laboratory upgrades at Northern New Mexico College Los Alamos National Security, LLC provides support November 1, 2013 Ribbon cutting at Northern New Mexico College As others look on, Northern New Mexico College

  19. Lab Enhances Scientific Data Sharing with Cutting-Edge Connection |

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

    Jefferson Lab Enhances Scientific Data Sharing with Cutting-Edge Connection Lab Enhances Scientific Data Sharing with Cutting-Edge Connections September 21, 2006 Cutting-Edge Andy Kowalski holds a 10 Gigabit fiber-optic cable. Newport News, Va. - Scientists who conduct research at the Department of Energy's (DOE's) Thomas Jefferson National Accelerator Facility can now access and share research data faster than ever before, thanks to an upgraded Internet connection that provides data

  20. High power laser downhole cutting tools and systems

    DOE Patents [OSTI]

    Zediker, Mark S; Rinzler, Charles C; Faircloth, Brian O; Koblick, Yeshaya; Moxley, Joel F

    2015-01-20

    Downhole cutting systems, devices and methods for utilizing 10 kW or more laser energy transmitted deep into the earth with the suppression of associated nonlinear phenomena. Systems and devices for the laser cutting operations within a borehole in the earth. These systems and devices can deliver high power laser energy down a deep borehole, while maintaining the high power to perform cutting operations in such boreholes deep within the earth.

  1. Cross-Cutting Hydrogen Station Infrastructure Review | Department of Energy

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

    Cross-Cutting Hydrogen Station Infrastructure Review Cross-Cutting Hydrogen Station Infrastructure Review The U.S. Department of Energy (DOE)'s Fuel Cell Technologies Office (FCTO) hosted a cross-cutting review on June 10, 2016, to evaluate FCTO's activities related to hydrogen station infrastructure, discuss the critical technical barriers to expanding hydrogen infrastructure and the strategies to overcome them, and gather feedback to better inform strategies to address research, development,

  2. Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1 |

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

    Department of Energy Technology to Market » Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1 Photovoltaic Supply Chain and Cross-Cutting Technologies Round 1 On June 11, 2009, DOE announced the first round of Photovoltaic (PV) Supply Chain and Cross-Cutting Technologies awardees. The funded projects target manufacturing and product cost reduction with the potential to have a near-term impact on a substantial segment of the PV industry. General Electric Global Research

  3. Cuttings Analysis At Raft River Geothermal Area (1976) | Open...

    Open Energy Info (EERE)

    Raft River Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Raft River Geothermal Area (1976)...

  4. NNSA's Cutting Edge Science and Research on Display at Annual...

    National Nuclear Security Administration (NNSA)

    NNSA's Cutting Edge Science and Research on Display at Annual AAAS Meeting February 17, ... newly elected fellows at the American Association for the Advancement of Science (AAAS). ...

  5. SF 2001-WLD;CONTRACTOR WELDING, CUTTING AND BRAZING

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

    01-WLD (11-2012) Supersedes (4-2010) Issue CONTRACTOR WELDING, CUTTING, BRAZING P ART 1: CO NT R ACT O R' S E X PO S UR E AS S E S SM ENT Identify what welding, cutting and/or brazing you are doing: (Check box or fill-in type below) Welding Thermal Cutting Brazing (No cadmium filler BAg-1 or BAg- 2; Silver not to exceed 45%) MIG Oxy-acetylene Oxy-acetylene TIG Stick Plasma arc Other Identify the base metal you are welding, cutting or brazing: (Check box or fill-in below) Carbon steel Galvanized

  6. PPPL researchers present cutting edge results at APS Plasma Physics...

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

    PPPL researchers present cutting edge results at APS Plasma Physics Conference November ... Gallery: Fast-camera image showing plasma during magnetic reconnection. Fast-camera image ...

  7. Twin Groves Wind Energy Facility Cut-in Speeds

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

    Currently, only operational mitigation (stopping turbine blades from spinning) during ... Most studies found at least a 50% reduction in bat fatalities when turbine cut-in speed ...

  8. Cuttings Analysis At Silver Peak Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Silver Peak Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Silver Peak Area (DOE GTP) Exploration Activity...

  9. Cuttings Analysis At Alum Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    Alum Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Alum Area (DOE GTP) Exploration Activity Details...

  10. Cuttings Analysis At Wister Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    Wister Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Wister Area (DOE GTP) Exploration Activity Details...

  11. Cuttings Analysis At Fort Bliss Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Fort Bliss Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Fort Bliss Area (DOE GTP) Exploration Activity...

  12. Cuttings Analysis At Maui Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    Maui Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Maui Area (DOE GTP) Exploration Activity Details...

  13. Cuttings Analysis At Flint Geothermal Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Flint Geothermal Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Flint Geothermal Area (DOE GTP) Exploration...

  14. Cuttings Analysis At The Needles Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    The Needles Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At The Needles Area (DOE GTP) Exploration Activity...

  15. Cuttings Analysis At Mccoy Geothermal Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Mccoy Geothermal Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Mccoy Geothermal Area (DOE GTP) Exploration...

  16. Cuttings Analysis At Colrado Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    Colrado Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Colrado Area (DOE GTP) Exploration Activity Details...

  17. Cuttings Analysis At Glass Buttes Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Glass Buttes Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Glass Buttes Area (DOE GTP) Exploration Activity...

  18. Cuttings Analysis At Black Warrior Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Black Warrior Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Black Warrior Area (DOE GTP) Exploration...

  19. Overview of FCTO Cross-Cutting Hydrogen Station Activities

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

    FCTO Cross-Cutting Hydrogen Station Activities - Overview ... Meeting June 6 - 10, 2016 Fuel Cell Technologies Office | 2 7... Performance * Station Cost * Station Financing * ...

  20. Session #1: Cutting Edge Methodologies--Beyond Current DFT

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

    Session 1: Cutting Edge Methodologies (beyond Current DFT) Moderator: Shengbai Zhang (RPI REL) Topics to be addressed: Benchmarking state-of-the-art approaches, accurate energy ...

  1. Cuttings Analysis At Hot Springs Ranch Area (Szybinski, 2006...

    Open Energy Info (EERE)

    description of the cuttings was prepared. Afterwards, the samples were packed in small cotton bags, transported to the warehouse located at the Nevada Geothermal office in...

  2. Cuttings Analysis At Desert Peak Area (Laney, 2005) | Open Energy...

    Open Energy Info (EERE)

    Desert Peak Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Desert Peak Area (Laney, 2005) Exploration...

  3. Apparatus and method for cutting soft materials, especially meat

    DOE Patents [OSTI]

    Spletzer, Barry L.; Callow, Diane S.; Jones, James F.; Kuehl, Michael A.; Shaw, Dick L.; Scalia, Barbara J.

    2005-10-18

    An apparatus and method for cutting soft materials such as meat. Two or more spirally mounted helical blades are situated between two supports, and the supports are mounted to a shank. The shank is rotated to impart rotary action to the spiral shear blades, and the entire device may be used to perform various cutting operations. The distal or bottom one of the supports may also be a cutting blade, and a number of versions of bottom cutting blades are useable in the practice of the invention.

  4. Cuttings Analysis At Coso Geothermal Area (1980) | Open Energy...

    Open Energy Info (EERE)

    Exploration Activity Details Location Coso Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis...

  5. Breakthrough Cutting Technology Promises to Reduce Solar Costs

    Office of Energy Efficiency and Renewable Energy (EERE)

    Silicon Genesis advancing the field of solar energy by developing a process that will virtually eliminate all waste when cutting materials needed to implement solar technology.

  6. The application of metal cutting technologies in tasks performed in radioactive environments

    SciTech Connect (OSTI)

    Fogle, R.F.; Younkins, R.M.

    1997-05-01

    The design and use of equipment to perform work in radioactive environments is uniquely challenging. Some tasks require that the equipment be operated by a person wearing a plastic suit or full face respirator and donning several pairs of rubber gloves. Other applications may require that the equipment be remotely controlled. Other important, design considerations include material compatibility, mixed waste issues, tolerance to ionizing radiation, size constraints and weight capacities. As always, there is the ``We need it ASAP`` design criteria. This paper describes four applications where different types of metal cutting technologies were used to successfully perform tasks in radioactive environments. The technologies include a plasma cutting torch, a grinder with an abrasive disk, a hydraulic shear, and a high pressure abrasive water jet cutter.

  7. Spray Combustion Cross-Cut Engine Research | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace005_pickett_2011_o.pdf (2.06 MB) More Documents & Publications Low-Temperature Diesel Combustion Cross-Cut Research Spray Combustion Cross-Cut Engine Research Progress of the Engine Combustion Network

  8. Cross-cutting Technologies for Advanced Biofuels | Department of Energy

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

    Cross-cutting Technologies for Advanced Biofuels Cross-cutting Technologies for Advanced Biofuels NREL report-out presentation at the CTAB webinar on crosscutting technologies for advanced biofuels. ctab_webinar_crosscutting.pdf (1.34 MB) More Documents & Publications Innovative Topics for Advanced Biofuels Conversion Technologies for Advanced Biofuels - Carbohydrates Production Conversion Technologies for Advanced Biofuels - Carbohydrates Upgrading

  9. Method and apparatus for diamond wire cutting of metal structures

    DOE Patents [OSTI]

    Parsells, Robert; Gettelfinger, Geoff; Perry, Erik; Rule, Keith

    2005-04-19

    A method and apparatus for diamond wire cutting of metal structures, such as nuclear reactor vessels, is provided. A diamond wire saw having a plurality of diamond beads with beveled or chamfered edges is provided for sawing into the walls of the metal structure. The diamond wire is guided by a plurality of support structures allowing for a multitude of different cuts. The diamond wire is cleaned and cooled by CO.sub.2 during the cutting process to prevent breakage of the wire and provide efficient cutting. Concrete can be provided within the metal structure to enhance cutting efficiency and reduce airborne contaminants. The invention can be remotely controlled to reduce exposure of workers to radioactivity and other hazards.

  10. Hopper Job Size Charts

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

    Job Size Charts Hopper Job Size Charts Fractional Jobs The following charts show the fraction of hours used on Hopper in each of five job-core-size bins: 2014 Usage by Job Size Chart 2013 2012 2011 Large Jobs The following charts show the fraction of hours used on Hopper by jobs using greater than 16,384 cores: 2014 2013 2012 Usage by Job Size Chart 2011 Last edited: 2016-05-02 09:20:42

  11. CAMX - A High Performance Cutting Technique for Underwater Use

    SciTech Connect (OSTI)

    Bach, Fr.-W.; Versemann, R.; Bienia, H.; Kremer, G.

    2003-02-27

    During the past years a new cutting technology, the CAMX-process-family (Contact-Arc-Metal-X [X is for Cutting, Grinding and Drilling]) was developed at the Institute of Materials Science in Hanover. These are electro-thermal underwater separation processes for metallic structures. The CAMX technology covers the Contact-Arc-Metal- Cutting (CAMC) with a sword-like cutting electrode, the Contact-Arc-Metal-Grinding (CAMG) with a rotating electrode and the Contact-Arc-Metal-Drilling (CAMD) with a wrap mechanism to fix and carry the workpiece. There are no limitations of CAMC concerning the capability of cutting complicated structures of workpieces. Undercuts and cavities in the workpiece do not affect the CAMC. The CAMG is a separation process for straight cuts with a very high cutting speed. The CAMD is a technology to drill holes or pocket holes of any geometry. With the integrated wrap mechanism it is possible to fix and carry workpieces, which are not to handle with conventional mechanisms.

  12. Edison Job Size Charts

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

    Reports » Edison Job Size Charts Edison Job Size Charts Fraction of Hours Used per Job Size Note: Interactive charts with current and past Cori and Edison data are now available on MyNERSC This chart shows the fraction of hours used on Edison in each of 5 job-core-size bins. 2015 Usage by Job Size Chart 2014 Fraction of Hours Used by Big Jobs This chart shows the fraction of hours used on Edison by jobs using 16,384 or more cores. 2015 Usage by Job Size Chart 2014 Last edited: 2016-04-21

  13. Comparative study of 0° X-cut and Y+36°-cut lithium niobate high-voltage sensing

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

    Patel, N.; Branch, D. W.; Schamiloglu, E.; Cular, S.

    2015-08-11

    A comparison study between Y+36° and 0° X-cut lithium niobate (LiNbO3) was performed to evaluate the influence of crystal cut on the acoustic propagation to realize a piezoelectric high-voltage sensor. The acoustic time-of-flight for each crystal cut was measured when applying direct current (DC), alternating current (AC), and pulsed voltages. Results show that the voltage-induced shift in the acoustic wave propagation time scaled quadratically with voltage for DC and AC voltages applied to X-cut crystals. For the Y+36° crystal, the voltage-induced shift scales linearly with DC voltages and quadratically with AC voltages. When applying 5 μs voltage pulses to bothmore »crystals, the voltage-induced shift scaled linearly with voltage. For the Y+36° cut, the voltage-induced shift from applying DC voltages ranged from 10 to 54 ps and 35 to 778 ps for AC voltages at 640 V over the frequency range of 100 Hz–100 kHz. Using the same conditions as the Y+36° cut, the 0° X-cut crystal sensed a shift of 10–273 ps for DC voltages and 189–813 ps for AC voltage application. For 5 μs voltage pulses, the 0° X-cut crystal sensed a voltage induced shift of 0.250–2 ns and the Y+36°-cut crystal sensed a time shift of 0.115–1.6 ns. This suggests a frequency sensitive response to voltage where the influence of the crystal cut was not a significant contributor under DC, AC, or pulsed voltage conditions. The measured DC data were compared to a 1-D impedance matrix model where the predicted incremental length changed as a function of voltage. Furthermore, when the voltage source error was eliminated through physical modeling from the uncertainty budget, the combined uncertainty of the sensor (within a 95% confidence interval) decreased to 0.0033% using a Y + 36°-cut crystal and 0.0032% using an X-cut crystal for all the voltage conditions used in this experiment.« less

  14. Comparative study of 0° X-cut and Y+36°-cut lithium niobate high-voltage sensing

    SciTech Connect (OSTI)

    Patel, N.; Branch, D. W.; Schamiloglu, E.; Cular, S.

    2015-08-11

    A comparison study between Y+36° and 0° X-cut lithium niobate (LiNbO3) was performed to evaluate the influence of crystal cut on the acoustic propagation to realize a piezoelectric high-voltage sensor. The acoustic time-of-flight for each crystal cut was measured when applying direct current (DC), alternating current (AC), and pulsed voltages. Results show that the voltage-induced shift in the acoustic wave propagation time scaled quadratically with voltage for DC and AC voltages applied to X-cut crystals. For the Y+36° crystal, the voltage-induced shift scales linearly with DC voltages and quadratically with AC voltages. When applying 5 μs voltage pulses to both crystals, the voltage-induced shift scaled linearly with voltage. For the Y+36° cut, the voltage-induced shift from applying DC voltages ranged from 10 to 54 ps and 35 to 778 ps for AC voltages at 640 V over the frequency range of 100 Hz–100 kHz. Using the same conditions as the Y+36° cut, the 0° X-cut crystal sensed a shift of 10–273 ps for DC voltages and 189–813 ps for AC voltage application. For 5 μs voltage pulses, the 0° X-cut crystal sensed a voltage induced shift of 0.250–2 ns and the Y+36°-cut crystal sensed a time shift of 0.115–1.6 ns. This suggests a frequency sensitive response to voltage where the influence of the crystal cut was not a significant contributor under DC, AC, or pulsed voltage conditions. The measured DC data were compared to a 1-D impedance matrix model where the predicted incremental length changed as a function of voltage. Furthermore, when the voltage source error was eliminated through physical modeling from the uncertainty budget, the combined uncertainty of the sensor (within a 95% confidence interval) decreased to 0.0033% using a Y + 36°-cut crystal and 0.0032% using an X-cut crystal for all the voltage conditions used in this experiment.

  15. Comparative study of 0° X-cut and Y+36°-cut lithium niobate high-voltage sensing

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

    Patel, N.; Branch, D. W.; Schamiloglu, E.; Cular, S.

    2015-08-11

    A comparison study between Y+36° and 0° X-cut lithium niobate (LiNbO3) was performed to evaluate the influence of crystal cut on the acoustic propagation to realize a piezoelectric high-voltage sensor. The acoustic time-of-flight for each crystal cut was measured when applying direct current (DC), alternating current (AC), and pulsed voltages. Results show that the voltage-induced shift in the acoustic wave propagation time scaled quadratically with voltage for DC and AC voltages applied to X-cut crystals. For the Y+36° crystal, the voltage-induced shift scales linearly with DC voltages and quadratically with AC voltages. When applying 5 μs voltage pulses to bothmore » crystals, the voltage-induced shift scaled linearly with voltage. For the Y+36° cut, the voltage-induced shift from applying DC voltages ranged from 10 to 54 ps and 35 to 778 ps for AC voltages at 640 V over the frequency range of 100 Hz–100 kHz. Using the same conditions as the Y+36° cut, the 0° X-cut crystal sensed a shift of 10–273 ps for DC voltages and 189–813 ps for AC voltage application. For 5 μs voltage pulses, the 0° X-cut crystal sensed a voltage induced shift of 0.250–2 ns and the Y+36°-cut crystal sensed a time shift of 0.115–1.6 ns. This suggests a frequency sensitive response to voltage where the influence of the crystal cut was not a significant contributor under DC, AC, or pulsed voltage conditions. The measured DC data were compared to a 1-D impedance matrix model where the predicted incremental length changed as a function of voltage. Furthermore, when the voltage source error was eliminated through physical modeling from the uncertainty budget, the combined uncertainty of the sensor (within a 95% confidence interval) decreased to 0.0033% using a Y + 36°-cut crystal and 0.0032% using an X-cut crystal for all the voltage conditions used in this experiment.« less

  16. Comparative study of 0° X-cut and Y + 36°-cut lithium niobate high-voltage sensing

    SciTech Connect (OSTI)

    Patel, N.; Branch, D. W.; Cular, S.; Schamiloglu, E.

    2015-08-15

    A comparison study between Y + 36° and 0° X-cut lithium niobate (LiNbO{sub 3}) was performed to evaluate the influence of crystal cut on the acoustic propagation to realize a piezoelectric high-voltage sensor. The acoustic time-of-flight for each crystal cut was measured when applying direct current (DC), alternating current (AC), and pulsed voltages. Results show that the voltage-induced shift in the acoustic wave propagation time scaled quadratically with voltage for DC and AC voltages applied to X-cut crystals. For the Y + 36° crystal, the voltage-induced shift scales linearly with DC voltages and quadratically with AC voltages. When applying 5 μs voltage pulses to both crystals, the voltage-induced shift scaled linearly with voltage. For the Y + 36° cut, the voltage-induced shift from applying DC voltages ranged from 10 to 54 ps and 35 to 778 ps for AC voltages at 640 V over the frequency range of 100 Hz–100 kHz. Using the same conditions as the Y + 36° cut, the 0° X-cut crystal sensed a shift of 10–273 ps for DC voltages and 189–813 ps for AC voltage application. For 5 μs voltage pulses, the 0° X-cut crystal sensed a voltage induced shift of 0.250–2 ns and the Y + 36°-cut crystal sensed a time shift of 0.115–1.6 ns. This suggests a frequency sensitive response to voltage where the influence of the crystal cut was not a significant contributor under DC, AC, or pulsed voltage conditions. The measured DC data were compared to a 1-D impedance matrix model where the predicted incremental length changed as a function of voltage. When the voltage source error was eliminated through physical modeling from the uncertainty budget, the combined uncertainty of the sensor (within a 95% confidence interval) decreased to 0.0033% using a Y + 36°-cut crystal and 0.0032% using an X-cut crystal for all the voltage conditions used in this experiment.

  17. Testing of Alternative Abrasives for Water-Jet Cutting at C Tank Farm

    SciTech Connect (OSTI)

    Krogstad, Eirik J.

    2013-08-01

    Legacy waste from defense-related activities at the Hanford Site has predominantly been stored in underground tanks, some of which have leaked; others may be at risk to do so. The U.S. Department of Energys goal is to empty the tanks and transform their contents into more stable waste forms. To do so requires breaking up, and creating a slurry from, solid wastes in the bottoms of the tanks. A technology developed for this purpose is the Mobile Arm Retrieval System. This system is being used at some of the older single shell tanks at C tank farm. As originally planned, access ports for the Mobile Arm Retrieval System were to be cut using a high- pressure water-jet cutter. However, water alone was found to be insufficient to allow effective cutting of the steel-reinforced tank lids, especially when cutting the steel reinforcing bar (rebar). The abrasive added in cutting the hole in Tank C-107 was garnet, a complex natural aluminosilicate. The hardness of garnet (Mohs hardness ranging from H 6.5 to 7.5) exceeds that of solids currently in the tanks, and was regarded to be a threat to Hanford Waste Treatment and Immobilization Plant systems. Olivine, an iron-magnesium silicate that is nearly as hard as garnet (H 6.5 to 7), has been proposed as an alternative to garnet. Pacific Northwest National Laboratory proposed to test pyrite (FeS2), whose hardness is slightly less (H 6 to 6.5) for 1) cutting effectiveness, and 2) propensity to dissolve (or disintegrate by chemical reaction) in chemical conditions similar to those of tank waste solutions. Cutting experiments were conducted using an air abrader system and a National Institute of Standards and Technology Standard Reference Material (SRM 1767 Low Alloy Steel), which was used as a surrogate for rebar. The cutting efficacy of pyrite was compared with that of garnet and olivine in identical size fractions. Garnet was found to be most effective in removing steel from the target; olivine and pyrite were less effective

  18. Micromachined cutting blade formed from {211}-oriented silicon...

    Office of Scientific and Technical Information (OSTI)

    This allows multiple blades to be batch fabricated on a common substrate and separated for packaging and use. The micromachined cutting blade, which can be mounted to a handle in ...

  19. Cuttings Analysis At Fenton Hill HDR Geothermal Area (Laughlin...

    Open Energy Info (EERE)

    I), cuttings collected at 1.5- or 3-m intervals, and random samples from a "junk basket" run behind the drill bit provided material for characterizing the basement rocks....

  20. New Design Tool Can Help Cut building Energy Use

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

    Design Tool Can Help Cut Building Energy Use By Up to 50 Percent Energy Efficient ... and efficiency design strategies in a matter of minutes on an office personal computer. ...

  1. Surface dimpling on rotating work piece using rotation cutting tool

    DOE Patents [OSTI]

    Bhapkar, Rohit Arun; Larsen, Eric Richard

    2015-03-31

    A combined method of machining and applying a surface texture to a work piece and a tool assembly that is capable of machining and applying a surface texture to a work piece are disclosed. The disclosed method includes machining portions of an outer or inner surface of a work piece. The method also includes rotating the work piece in front of a rotating cutting tool and engaging the outer surface of the work piece with the rotating cutting tool to cut dimples in the outer surface of the work piece. The disclosed tool assembly includes a rotating cutting tool coupled to an end of a rotational machining device, such as a lathe. The same tool assembly can be used to both machine the work piece and apply a surface texture to the work piece without unloading the work piece from the tool assembly.

  2. An Investigation for Disposal of Drill Cuttings into Unconsolidated...

    Office of Scientific and Technical Information (OSTI)

    The results of the project should provide the industry with a basis for wider use of oil base drilling fluids in water sensitive formations by implementing drill cutting injection ...

  3. Cut and Shoot, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Cut and Shoot is a city in Montgomery County, Texas. It falls under Texas's 8th congressional district.12 References...

  4. SF 2001-WLD;CONTRACTOR WELDING, CUTTING AND BRAZING

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

    you are welding, cutting or brazing: (Check box or fill-in below) Carbon steel Galvanized Stainless steel Aluminum Other: Is there a coating on the base metal? (Check box) YES NO ...

  5. Forest County Potawatomi Tribe Cuts Emissions, Promotes Green...

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

    Forest County Potawatomi Tribe Cuts Emissions, Promotes Green Growth February 23, 2012 - ... In pursuit of its long-term energy goal of reducing its carbon footprint to zero, the ...

  6. Sandia Algae Researchers Cut Costs with Improved Nutrient Recycling |

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

    Department of Energy Sandia Algae Researchers Cut Costs with Improved Nutrient Recycling Sandia Algae Researchers Cut Costs with Improved Nutrient Recycling October 5, 2015 - 12:16pm Addthis Ryan Davis and Sandia National Laboratories colleagues have developed a method to recycle critical and costly algae cultivation nutrients phosphate and nitrogen. Photo by Dino Vournas. Ryan Davis and Sandia National Laboratories colleagues have developed a method to recycle critical and costly algae

  7. Ultrasonic cleaner cuts costs, enhances safety | Y-12 National Security

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

    Complex Ultrasonic cleaner cuts ... Ultrasonic cleaner cuts costs, enhances safety Posted: August 27, 2013 - 1:42pm System engineers, Facility Design engineers, Production personnel and craft workers collaborated on a project to significantly upgrade a 30-year-old cleaning unit essential to parts-cleaning operations. "The work is interesting, but it's the people that get you back here every day." That's Facility Design engineer Ernie Lamb's summation of another successful team

  8. New Energy Efficiency Standards for External Power Supplies to Cut

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

    Consumers' Utility Bills | Department of Energy External Power Supplies to Cut Consumers' Utility Bills New Energy Efficiency Standards for External Power Supplies to Cut Consumers' Utility Bills February 3, 2014 - 12:30pm Addthis News Media Contact (202) 586-4940 WASHINGTON - Building on President Obama's State of the Union address, which called for reducing carbon pollution and helping communities move to greater energy efficiency, the Energy Department today announced new efficiency

  9. Alarm Response Training ribbon cutting | Y-12 National Security Complex

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

    Alarm Response Training ... Alarm Response Training ribbon cutting Posted: October 24, 2014 - 4:45pm The Alarm Response Training Academy officially celebrated its new location at the Y-12 National Security Complex Thursday,Oct. 23. On hand to cut the ribbon were (pictured from left) Teresa Robbins, NNSA Production Office Acting Assistant Manager for Environment, Safety, Health and Quality; Anne Harrington, NNSA Deputy Administrator, Defense Nuclear Nonproliferation; and Morgan Smith, Chief

  10. AMO's Kelly Visconti Joins Ribbon Cutting of $50 million Indiana

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

    Manufacturing Institute | Department of Energy AMO's Kelly Visconti Joins Ribbon Cutting of $50 million Indiana Manufacturing Institute AMO's Kelly Visconti Joins Ribbon Cutting of $50 million Indiana Manufacturing Institute July 29, 2016 - 4:21pm Addthis (From Left to Right) Dan Hasler, President, Purdue Research Foundation; Ian Steff, Executive Vice President and Chief Innovation Officer, Indiana Economic Development Corporation; Craig Blue, CEO Institute for Advanced Composites

  11. Competency Management and Cross-Cutting Activities | Department of Energy

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

    Business Operations » Project Management Coordination Office » Competency Management and Cross-Cutting Activities Competency Management and Cross-Cutting Activities The Project Management Coordination Office (PMCO) works with the Office of Energy Efficiency and Renewable Energy (EERE) Workforce Management Office to provide project and risk management training and certification support. Goals and Priorities Provide project and risk management training and certification as well as knowledge

  12. ARM - Measurement - Hydrometeor size

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

    size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor size The size of a hydrometeor, measured directly or derived from other measurements. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those

  13. ARM - VAP Product - aerosolbe1turn

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

    ( time ) Aerosol absorption coefficient, red wavelength, low RH, 1 um size cut 1km absorptioncoefficientmeanred ( time ) altitude m alt Angstrom exponent derived ...

  14. Finite element analyses of tool stresses in metal cutting processes

    SciTech Connect (OSTI)

    Kistler, B.L.

    1997-01-01

    In this report, we analytically predict and examine stresses in tool tips used in high speed orthogonal machining operations. Specifically, one analysis was compared to an existing experimental measurement of stresses in a sapphire tool tip cutting 1020 steel at slow speeds. In addition, two analyses were done of a carbide tool tip in a machining process at higher cutting speeds, in order to compare to experimental results produced as part of this study. The metal being cut was simulated using a Sandia developed damage plasticity material model, which allowed the cutting to occur analytically without prespecifying the line of cutting/failure. The latter analyses incorporated temperature effects on the tool tip. Calculated tool forces and peak stresses matched experimental data to within 20%. Stress contours generally agreed between analysis and experiment. This work could be extended to investigate/predict failures in the tool tip, which would be of great interest to machining shops in understanding how to optimize cost/retooling time.

  15. Size reduction of high- and low-moisture corn stalks by linear knife grid system

    SciTech Connect (OSTI)

    Womac, A.R. [University of Tennessee; Igathinathane, C. [Mississippi State University (MSU); Sokhansanj, Shahabaddine [ORNL; Narayan, S. [First American Scientific Co.

    2009-04-01

    High- and low-moisture corn stalks were tested using a linear knife grid size reduction device developed for first-stage size reduction. The device was used in conjunction with a universal test machine that quantified shearing stress and energy characteristics for forcing a bed of corn stalks through a grid of sharp knives. No published engineering performance data for corn stover with similar devices are available to optimize performance; however, commercial knife grid systems exist for forage size reduction. From the force displacement data, mean and maximum ultimate shear stresses, cumulative and peak mass-based cutting energies for corn stalks, and mean new surface area-based cutting energies were determined from 4 5 refill runs at two moisture contents (78.8% and 11.3% wet basis), three knife grid spacings (25.4, 50.8, and 101.6 mm), and three bed depths (50.8, 101.6, and 152.4 mm). In general, the results indicated that peak failure load, ultimate shear stress, and cutting energy values varied directly with bed depth and inversely with knife grid spacing. Mean separation analysis established that high- and low-moisture conditions and bed depths 101.6 mm did not differ significantly (P < 0.05) for ultimate stress and cutting energy values, but knife grid spacing were significantly different. Linear knife grid cutting energy requirements for both moisture conditions of corn stalks were much smaller than reported cutting energy requirements. Ultimate shear stress and cutting energy results of this research should aid the engineering design of commercial scale linear knife gird size reduction equipment for various biomass feedstocks.

  16. Cutting assembly including expanding wall segments of auger

    DOE Patents [OSTI]

    Treuhaft, Martin B.; Oser, Michael S.

    1983-01-01

    A mining auger comprises a cutting head carried at one end of a tubular shaft and a plurality of wall segments which in a first position thereof are disposed side by side around said shaft and in a second position thereof are disposed oblique to said shaft. A vane projects outwardly from each wall segment. When the wall segments are in their first position, the vanes together form a substantially continuous helical wall. A cutter is mounted on the peripheral edge of each of the vanes. When the wall segments are in their second position, the cutters on the vanes are disposed radially outward from the perimeter of the cutting head.

  17. Proposed EPA Rules Will Cut Carbon Pollution While Maintaining Reliability

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

    | Department of Energy Proposed EPA Rules Will Cut Carbon Pollution While Maintaining Reliability Proposed EPA Rules Will Cut Carbon Pollution While Maintaining Reliability June 3, 2014 - 4:20pm Addthis Photo via iStock by Getty Images. Photo via iStock by Getty Images. Melanie A. Kenderdine Melanie A. Kenderdine Director of the Office of Energy Policy and Systems Analysis Learn More Watch a video that explains how EPA's Clean Power Plan works. See the projected public health benefits of the

  18. Does size matter?

    SciTech Connect (OSTI)

    Carreras, B. A.; Physics Department, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775; Physics Department, Universidad Carlos III de Madrid, Madrid ; Newman, D. E.; Dobson, Ian

    2014-06-15

    Failures of the complex infrastructures society depends on having enormous human and economic cost that poses the question: Are there ways to optimize these systems to reduce the risks of failure? A dynamic model of one such system, the power transmission grid, is used to investigate the risk from failure as a function of the system size. It is found that there appears to be optimal sizes for such networks where the risk of failure is balanced by the benefit given by the size.

  19. Universal Monitor (UM) for OTEC compact heat exchangers

    SciTech Connect (OSTI)

    Kuzay, T.M.

    1981-09-01

    Universal Monitor (UM), is a device-independent concept to measure, with precision, the initiation and progression of fouling in any given OTEC Compact Heat Exchanger model with or without the application of countermeasures. Design description and supporting analyses for the Universal Monitor for OTEC Compact Heat Exchangers are presented.

  20. ARM - VAP Product - aip1ogren

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

    coefficient, red wavelength, 3 wavelength PSAP, low RH, 1 um size cut 1Mm BaRDry1umPSAP3W1 ( time ) Aerosol absorption Absorption coefficient, red wavelength, 3 ...

  1. ARM - VAP Product - aipavg1ogren

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

    coefficient, red wavelength, 3 wavelength PSAP, low RH, 1 um size cut 1Mm BaRDry1umPSAP3W1 ( time ) Aerosol absorption Absorption coefficient, red wavelength, 3 ...

  2. Rebates Cut the Price of Big-Time Efficiency Upgrades

    Broader source: Energy.gov [DOE]

    One of the smartest ways for homeowners to save money on major appliance upgrades is to hook into an energy efficiency rebate program. The Neighborhood Energy Connection (NEC), a non-profit organization in St. Paul, Minnesota, helps local residents take advantage of Xcel Energy’s rebate programs that cut the cost of whole-house energy efficiency upgrades.

  3. Selection and Implementation of a Replacement Cutting Tool Selection Application

    SciTech Connect (OSTI)

    Rice, Gordon

    2008-10-06

    A new commercial cutting tool software package replaced an internally created legacy system. This report describes the issues that surfaced during the migration and installation of the commercial package and the solutions employed. The primary issues discussed are restructuring the data between two drastically different database schemas and the creation of individual component graphics.

  4. Diamond-cBN alloy: A universal cutting material

    SciTech Connect (OSTI)

    Wang, Pei; He, Duanwei Kou, Zili; Li, Yong; Hu, Qiwei; Xu, Chao; Lei, Li; Wang, Qiming; Wang, Liping; Zhao, Yusheng; Xiong, Lun; Liu, Jing

    2015-09-07

    Diamond and cubic boron nitride (cBN) as conventional superhard materials have found widespread industrial applications, but both have inherent limitations. Diamond is not suitable for high-speed cutting of ferrous materials due to its poor chemical inertness, while cBN is only about half as hard as diamond. Because of their affinity in structural lattices and covalent bonding character, diamond and cBN could form alloys that can potentially fill the performance gap. However, the idea has never been demonstrated because samples obtained in the previous studies were too small to be tested for their practical performance. Here, we report the synthesis and characterization of transparent bulk diamond-cBN alloy compacts whose diameters (3 mm) are sufficiently large for them to be processed into cutting tools. The testing results show that the diamond-cBN alloy has superior chemical inertness over polycrystalline diamond and higher hardness than single crystal cBN. High-speed cutting tests on hardened steel and granite suggest that diamond-cBN alloy is indeed a universal cutting material.

  5. Reuse of waste cutting sand at Lawrence Livermore National Laboratory

    SciTech Connect (OSTI)

    Mathews, S., LLNL

    1998-02-25

    Lawrence Livermore National Laboratory (LLNL) examined the waste stream from a water jet cutting operation, to evaluate the possible reuse of waste garnet sand. The sand is a cutting agent used to shape a variety of materials, including metals. Nearly 70,000 pounds of waste sand is generated annually by the cutting operation. The Environmental Protection Department evaluated two potential reuses for the spent garnet sand: backfill in utility trenches; and as a concrete constituent. In both applications, garnet waste would replace the sand formerly purchases by LLNL for these purposes. Findings supported the reuse of waste garnet sand in concrete, but disqualified its proposed application as trench backfill. Waste sand stabilized in ac concrete matrix appeared to present no metals-leaching hazard; however, unconsolidated sand in trenches could potentially leach metals in concentrations high enough to threaten ground water quality. A technical report submitted to the San Francisco Bay Regional Water Quality Control Board was reviewed and accepted by that body. Reuse of waste garnet cutting sand as a constituent in concrete poured to form walkways and patios at LLNL was approved.

  6. Electrosurgical device for both mechanical cutting and coagulation of bleeding

    DOE Patents [OSTI]

    Doss, J.D.; McCabe, C.W.

    1985-02-08

    Bipolar electrical coagulation of tissue using radiofrequency energy is combined with the functions of conventional surgical pressure tissue cutting instruments without significant modification thereof in a single instrument with the result that a surgeon can perform both procedures without having to redirect his attention from the area of the surgery. 4 figs.

  7. Electrosurgical device for both mechanical cutting and coagulation of bleeding

    DOE Patents [OSTI]

    Doss, James D.; McCabe, Charles W.

    1987-01-01

    Bipolar electrical coagulation of tissue using radio-frequency energy is combined with the functions of conventional surgical pressure tissue cutting instruments without significant modification thereof in a single instrument with the result that a surgeon can perform both procedures without having to redirect his attention from the area of the surgery.

  8. Method and apparatus for jet-assisted drilling or cutting

    DOE Patents [OSTI]

    Summers, David Archibold; Woelk, Klaus Hubert; Oglesby, Kenneth Doyle; Galecki, Grzegorz

    2013-07-02

    An abrasive cutting or drilling system, apparatus and method, which includes an upstream supercritical fluid and/or liquid carrier fluid, abrasive particles, a nozzle and a gaseous or low-density supercritical fluid exhaust abrasive stream. The nozzle includes a throat section and, optionally, a converging inlet section, a divergent discharge section, and a feed section.

  9. Method and apparatus for jet-assisted drilling or cutting

    DOE Patents [OSTI]

    Summers, David Archibold; Woelk, Klaus Hubert; Oglesby, Kenneth Doyle; Galecki, Grzegorz

    2012-09-04

    An abrasive cutting or drilling system, apparatus and method, which includes an upstream supercritical fluid and/or liquid carrier fluid, abrasive particles, a nozzle and a gaseous or low-density supercritical fluid exhaust abrasive stream. The nozzle includes a throat section and, optionally, a converging inlet section, a divergent discharge section, and a feed section.

  10. Woolen mill captures exhaust to cut fuel costs

    SciTech Connect (OSTI)

    Not Available

    1986-02-01

    To keep ahead of growing competition, a northeast woolen mill sought a method of reducing fuel costs while increasing production. A counterflow-design plate heat exchanger was employed to recirculate dryer exhaust. It has cut propane consumption from 4900 to 2400 gallons a week while design modifications have doubled dryer speed. The heat recovery system is described.

  11. Laser cutting apparatus for nuclear core fuel subassembly

    DOE Patents [OSTI]

    Walch, Allan P.; Caruolo, Antonio B.

    1982-02-23

    The object of the invention is to provide a system and apparatus which employs laser cutting to disassemble a nuclear core fuel subassembly. The apparatus includes a gantry frame (C) which straddles the core fuel subassembly (14), an x-carriage (22) travelling longitudinally above the frame which carries a focus head assembly (D) having a vertically moving carriage (46) and a laterally moving carriage (52), a system of laser beam transferring and focusing mirrors carried by the x-carriage and focusing head assembly, and a shroud follower (F) and longitudinal follower (G) for following the shape of shroud (14) to maintain a beam focal point (44) fixed upon the shroud surface for accurate cutting.

  12. Lattice QCD Thermodynamics : 10k analysis with 1k thermalziation and block size of 500.

    SciTech Connect (OSTI)

    Soltz, R; Vranas, P; Gupta, R

    2007-05-10

    This is a re-analysis of the Lattice QCD Thermodynamics p4rhcm new beta analysis (UCRL-TR-230742) with approximately 10k trajectories per beta point, rerun with thermalization cut at 1000, and a block size of 500. Some diagnostic text has been omitted to reduce the number of pages.

  13. Sandia National Laboratories Algae Raceway Testing Facility Ribbon Cutting

    Broader source: Energy.gov [DOE]

    Sandia National Laboratories will be hosting a ribbon cutting on Feb. 4, 2016 at its Livermore Valley Open Campus to commemorate the opening of a new algae raceway testing facility. The new facility will allow researchers to better understand algal cultivation techniques, and is funded in part by the Bioenergy Technologies Office. Advanced Algal Systems Program Manager Alison Goss Eng and Technology Manager Daniel Fishman will be in attendance.

  14. Clean Cities: Building Partnerships to Cut Petroleum Use in Transportation

    SciTech Connect (OSTI)

    2016-01-01

    This brochure provides an overview of the U.S. Department of Energy's (DOE's) Clean Cities program, which advances the nation's economic, environmental, and energy security by supporting local actions to cut petroleum use in transportation. At the national level, the program develops and promotes publications, tools, and other unique resources. At the local level, nearly 100 coalitions leverage these resources to create networks of stakeholders.

  15. Building Partnerships to Cut Petroleum Use in Transportation

    SciTech Connect (OSTI)

    2014-02-26

    The U.S. Department of Energy's Clean Cities initiative advances the nation's economic, environmental, and energy security by supporting local actions to cut petroleum use in transportation. Clean Cities accomplishes this work through the activities of nearly 100 local coalitions. These coalitions provide resources and technical assistance in the deployment of alternative and renewable fuels, idle-reduction measures, fuel economy improvements, and new transportation technologies as they emerge.

  16. Building Partnerships to Cut Petroleum Use in Transportation (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01

    The U.S. Department of Energy's Clean Cities initiative advances the nation's economic, environmental, and energy security by supporting local actions to cut petroleum use in transportation. Clean Cities accomplishes this work through the activities of nearly 100 local coalitions. These coalitions provide resources and technical assistance in the deployment of alternative and renewable fuels, idle-reduction measures, fuel economy improvements, and new transportation technologies as they emerge.

  17. Design Guide Helps Grocery Stores Cut Energy Use

    Broader source: Energy.gov [DOE]

    Grocery stores are responsible for approximately 9% of the total energy consumed by U.S. commercial buildings. To reduce this energy impact, the newly released Advanced Energy Design Guide for Grocery Stores demonstrates how to cut typical energy use in half, conserving approximately 8 billion Btus of energy per year, per store –equivalent to the amount of energy consumed by 148 homes during the same period.

  18. PPPL researchers present cutting edge results at APS Plasma Physics

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

    Conference | Princeton Plasma Physics Lab PPPL researchers present cutting edge results at APS Plasma Physics Conference November 10, 2014 Tweet Widget Google Plus One Share on Facebook Conceptual image of the solar wind from the sun encountering the Earth's magnetosphere. Conceptual image of the solar wind from the sun encountering the Earth's magnetosphere. Gallery: Fast-camera image showing plasma during magnetic reconnection. Fast-camera image showing plasma during magnetic reconnection.

  19. Alcohol injection cuts diesel consumption on turbocharged tractors

    SciTech Connect (OSTI)

    Edson, D.V.

    1980-07-21

    M and W Gear Co. of Gibson City, IL, are marketing a new alcohol- injection system that permits turbocharged diesel engines to burn alcohol and claims to cut diesel consumption by 30% and more. The alcohol fuel, a blend of alcohol and water, does not meet the diesel fuel until the alcohol has been atomized and sprayed through the intake manifold into the cylinders. It permits farmers to use home- still-produced ethanol without the added expense of refining to anhydrous composition.

  20. Award-Winning Etching Process Cuts Solar Cell Costs

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

    Award-Winning Etching Process Cuts Solar Cell Costs Optimizing solar-cell technology can be a complex job, requiring expertise in material science, physics, and optics to convert as much sunlight as possible into electricity. But despite this complexity, a simple fact is key to making a high-performance solar cell: any sunlight reflected off the cell can't possibly be converted into electricity. Manufacturers have tried to minimize the reflection of sunlight off of solar cells by first

  1. Cross-Cutting Hydrogen Station Infrastructure Review Report

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

    CROSS-CUTTING HYDROGEN STATION INFRASTRUCTURE REVIEW REPORT June 10th, 2016 U.S. Department of Energy Fuel Cell Technologies Office Annual Merit Review NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any

  2. Breakthrough Furnace Can Cut Solar Costs - News Feature | NREL

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

    Breakthrough Furnace Can Cut Solar Costs October 21, 2011 In this photo, the cavity inside the furnace is glowing white-hot during a simulated firing, while a drawer-like door is open to show the mouth of the furnace. Enlarge image The cavity inside the Solar Optical Furnace glows white hot during a simulated firing of a solar cell. Credit: Dennis Schroeder Solar cells, the heart of the photovoltaic industry, must be tested for mechanical strength, oxidized, annealed, purified, diffused, etched,

  3. Method for maintaining a cutting blade centered in a kerf

    DOE Patents [OSTI]

    Blaedel, Kenneth L.; Davis, Pete J.; Landram, Charles S.

    2002-01-01

    A saw having a self-pumped hydrodynamic blade guide or bearing for retaining the saw blade in a centered position in the saw kerf (width of cut made by the saw). The hydrodynamic blade guide or bearing utilizes pockets or grooves incorporated into the sides of the blade. The saw kerf in the workpiece provides the guide or bearing stator surface. Both sides of the blade entrain cutting fluid as the blade enters the kerf in the workpiece, and the trapped fluid provides pressure between the blade and the workpiece as an inverse function of the gap between the blade surface and the workpiece surface. If the blade wanders from the center of the kerf, then one gap will increase and one gap will decrease and the consequent pressure difference between the two sides of the blade will cause the blade to re-center itself in the kerf. Saws using the hydrodynamic blade guide or bearing have particular application in slicing slabs from boules of single crystal materials, for example, as well as for cutting other difficult to saw materials such as ceramics, glass, and brittle composite materials.

  4. STRUCTURAL ANNOTATION OF EM IMAGES BY GRAPH CUT

    SciTech Connect (OSTI)

    Chang, Hang; Auer, Manfred; Parvin, Bahram

    2009-05-08

    Biological images have the potential to reveal complex signatures that may not be amenable to morphological modeling in terms of shape, location, texture, and color. An effective analytical method is to characterize the composition of a specimen based on user-defined patterns of texture and contrast formation. However, such a simple requirement demands an improved model for stability and robustness. Here, an interactive computational model is introduced for learning patterns of interest by example. The learned patterns bound an active contour model in which the traditional gradient descent optimization is replaced by the more efficient optimization of the graph cut methods. First, the energy function is defined according to the curve evolution. Next, a graph is constructed with weighted edges on the energy function and is optimized with the graph cut algorithm. As a result, the method combines the advantages of the level set method and graph cut algorithm, i.e.,"topological" invariance and computational efficiency. The technique is extended to the multi-phase segmentation problem; the method is validated on synthetic images and then applied to specimens imaged by transmission electron microscopy(TEM).

  5. Testing of Alternative Abrasives for Water-Jet Cutting at C Tank...

    Office of Scientific and Technical Information (OSTI)

    Testing of Alternative Abrasives for Water-Jet Cutting at C Tank Farm Citation Details In-Document Search Title: Testing of Alternative Abrasives for Water-Jet Cutting at C Tank ...

  6. S3TEC Cross Cutting Meeting | Solid State Solar Thermal Energy...

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

    Cross Cutting Meeting Meeting Friday May 6, 2016 12:00pm Location: 1-390 Event Contact: sborisk@mit.edu Monthly S3TEC cross cutting meeting

  7. S3TEC Cross Cutting Meeting | Solid State Solar Thermal Energy...

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

    S3TEC Cross Cutting Meeting Meeting Friday Apr 1, 2016 12:00pm Location: 1-390 Event Contact: sborisk@mit.edu Monthly S3TEC cross-cutting meeting

  8. Development of a Single-Pass Cut-and-Chip Harvest System for...

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

    Single-Pass Cut-and-Chip Harvest System for Short Rotation Woody Crops Development of a Single-Pass Cut-and-Chip Harvest System for Short Rotation Woody Crops Breakout Session ...

  9. Aerosol mobility size spectrometer

    DOE Patents [OSTI]

    Wang, Jian; Kulkarni, Pramod

    2007-11-20

    A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes an inlet for introducing a flow medium into the chamber in a flow direction, an aerosol injection port adjacent the inlet for introducing a charged aerosol sample into the chamber, a separation section for applying an electric field to the aerosol sample across the flow direction and an outlet opposite the inlet. In the separation section, the aerosol sample becomes entrained in the flow medium and the aerosol particles within the aerosol sample are separated by size into a plurality of aerosol flow streams under the influence of the electric field. The camera is disposed adjacent the housing outlet for optically detecting a relative position of at least one aerosol flow stream exiting the outlet and for optically detecting the number of aerosol particles within the at least one aerosol flow stream.

  10. Energy Department Announces $53 Million to Drive Innovation, Cut Cost of

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

    Solar Power | Department of Energy 53 Million to Drive Innovation, Cut Cost of Solar Power Energy Department Announces $53 Million to Drive Innovation, Cut Cost of Solar Power October 22, 2014 - 1:15am Addthis News Media Contact 202-586-4940 Energy Department Announces $53 Million to Drive Innovation, Cut Cost of Solar Power WASHINGTON - Building on President Obama's Climate Action Plan to cut carbon pollution and continue U.S. leadership in clean energy innovation, Energy Secretary Ernest

  11. Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Right Now Ten Ways You Can Start to Cut Petroleum Use Right Now to someone by E-mail Share Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Facebook Tweet about Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Twitter Bookmark Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on Google Bookmark Alternative Fuels Data Center: Ten Ways You Can Start to Cut Petroleum Use Right Now on

  12. Growing Cutting-edge X-ray Optics

    ScienceCinema (OSTI)

    Ray Conley

    2013-07-17

    Ever imagined that an Xbox controller could help open a window into a world spanning just one billionth of a meter? Brookhaven Lab's Ray Conley grows cutting-edge optics called multilayer Laue lenses (MLL) one atomic layer at a time to focus high-energy x-rays to within a single nanometer. To achieve this focusing feat, Ray uses a massive, custom-built atomic deposition device, an array of computers, and a trusty Xbox controller. These lenses will be deployed at the Lab's National Synchrotron Light Source II, due to begin shining super-bright light on pressing scientific puzzles in 2015

  13. Mitigating cutting-induced plasticity in the contour method, Part 2: Numerical analysis

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

    Muránsky, O.; Hamelin, C. J.; Hosseinzadeh, F.; Prime, M. B.

    2016-02-10

    Cutting-induced plasticity can have a significant effect on the measurement accuracy of the contour method. The present study examines the benefit of a double-embedded cutting configuration that relies on self-restraint of the specimen, relative to conventional edge-crack cutting configurations. A series of finite element analyses are used to simulate the planar sectioning performed during double-embedded and conventional edge-crack contour cutting configurations. The results of numerical analyses are first compared to measured results to validate the cutting simulations. The simulations are then used to compare the efficacy of different cutting configurations by predicting the deviation of the residual stress profile frommore » an original (pre-cutting) reference stress field, and the extent of cutting-induced plasticity. Comparisons reveal that while the double-embedded cutting configuration produces the most accurate residual stress measurements, the highest levels of plastic flow are generated in this process. As a result, this cutting-induced plastic deformation is, however, largely confined to small ligaments formed as a consequence of the sample sectioning process, and as such it does not significantly affect the back-calculated residual stress field.« less

  14. Degradation of dome cutting minerals in Hanford waste

    SciTech Connect (OSTI)

    Reynolds, Jacob G.; Huber, Heinz J.; Cooke, Gary A.

    2013-01-11

    At the Hanford Tank Farms, recent changes in retrieval technology require cutting new risers in several single-shell tanks. The Hanford Tank Farm Operator is using water jet technology with abrasive silicate minerals such as garnet or olivine to cut through the concrete and rebar dome. The abrasiveness of these minerals, which become part of the high-level waste stream, may enhance the erosion of waste processing equipment. However, garnet and olivine are not thermodynamically stable in Hanford waste, slowly degrading over time. How likely these materials are to dissolve completely in the waste before the waste is processed in the Waste Treatment and Immobilization Plant can be evaluated using theoretical analysis for olivine and collected direct experimental evidence for garnet. Based on an extensive literature study, a large number of primary silicates decompose into sodalite and cancrinite when exposed to Hanford waste. Given sufficient time, the sodalite also degrades into cancrinite. Even though cancrinite has not been directly added to any Hanford tanks during process times, it is the most common silicate observed in current Hanford waste. By analogy, olivine and garnet are expected to ultimately also decompose into cancrinite. Garnet used in a concrete cutting demonstration was immersed in a simulated supernate representing the estimated composition of the liquid retrieving waste from Hanford tank 241-C-107 at both ambient and elevated temperatures. This simulant was amended with extra NaOH to determine if adding caustic would help enhance the degradation rate of garnet. The results showed that the garnet degradation rate was highest at the highest NaOH concentration and temperature. At the end of 12 weeks, however, the garnet grains were mostly intact, even when immersed in 2 molar NaOH at 80 deg C. Cancrinite was identified as the degradation product on the surface of the garnet grains. In the case of olivine, the rate of degradation in the high-pH regimes

  15. Logging while tripping cuts time to run gamma ray

    SciTech Connect (OSTI)

    1996-06-10

    A new logging tool, sent down the drillstring before a pipe trip out of the hole, logs the well as the pipe is pulled from the hole, cutting the total time required for open hole logging on some wells. This logging while tripping (LWT) technology allows an operator to run a gamma ray and neutron log more quickly than with standard wire line equipment. The drill pipe conveys the logging tools up the well as the pipe is tripped out, and the logging data are stored in the tool`s memory. A transparent logging collar, which meets API 7 and RP7G requirements, holds the tools in the drillstring without interfering with the logging measurements.

  16. Oxygasoline torch cuts demolition time of nuclear test facility

    SciTech Connect (OSTI)

    Gezelman, J. )

    1993-04-01

    A large pressure vessel, which had been used to test relief valves in nuclear power plants, needed to be demolished once all the tests had been completed. What made this particular project so unusual was the fact that the vessel had 10-in.-thick steel walls and was 30 ft tall. James Gezelman Welding was contracted for the demolition. The main challenge was converting the tank to [number sign]1 scrap steel, which meant no piece could be larger than 5 X 2 ft. Since the tank had 10-in.-thick walls, oxygasoline cutting equipment manufactured by Petrogen Co. was chosen for the job. The reasons for this decision were cost-effectiveness, speed and safety.

  17. APS team works smarter, cuts substation construction costs by 36%

    SciTech Connect (OSTI)

    Not Available

    1993-05-01

    An aggressive, cost-cutting, team of T D employees at Arizona Public Service Co (APS) is building a new distribution substation in Phoenix for less than half the original cost that APS planners had calculated for the project's land, labor and materials. Scheduled for service in June of this year, APS analysts had originally projected land, labor and materials costs for the 20-MVA Bell substation at nearly $1.7-million-not including major equipment such as transformers, circuit breakers, and switches. However, after studying the project, an empowered APS crew was able to slash 36% off the original estimate-more than $610,000. What's more, APS spokesmen say that its new approach to substation construction and design has given its engineers and construction crews a laundry list of additional ideas to try out on future substation ventures. 4 figs., 1 tab.

  18. Batch drilling program cuts time, costs for Liuhua development

    SciTech Connect (OSTI)

    Gray, G.E.; Hall, K.H.; Mu, H.C.

    1996-08-12

    The efficiency of batch drilling operations and the appropriate use of technology, teamwork, and thorough planning helped cut several days off the time to drill each of 10 subsea wells for the Liuhua 11-1 development project in the South China Sea. The overall development program calls for drilling and completing 20 subsea horizontal wells. The rig-of-opportunity phase was the initial phase of this development and used a contract rig to establish the subsea wellhead array and initiate drilling of the development wells. The wellhead array was the first critical step. It was the foundation for the building block construction process used to create Liuhua`s subsea production system on the seabed. The paper discusses conductor operations, batch drilling operations, surface hole section, intermediate and production hole sections, the ten wells, application of technology, and overall results.

  19. Model-based planning for laser cutting operations under unsteady-state conditions

    SciTech Connect (OSTI)

    Di Pietro, P.; Yao, Y.L.

    1996-12-31

    Boundary encroachment or cutting right up to pre-cut sections are examples of unsteady-state operations of the laser cutting process. Cornering and generating small diameter holes also fall into this category. Heat transfer is often frustrated here, resulting in bulk heating of the workpiece. This in turn leads to a degradation of the cut quality. Currently, trial-and-error based experimentation is needed in order to assure quality in these regions. Thus model-based process planning has the benefit of reducing this step whilst leading to an optimal solution. Numerical investigation of the laser-workpiece interaction zone quantifies significant effects of such transiency on cutting front mobility and beam coupling behavior. Non-linear power adaptation profiles are generated via the optimization strategy in order to stabilize cutting front temperatures. Experimental results demonstrate such process planning can produce quality improvements.

  20. Recovery Act: Novel Kerf-Free PV Wafering that provides a low-cost approach to generate wafers from 150um to 50um in thickness

    SciTech Connect (OSTI)

    Fong, Theodore E.

    2013-05-06

    The technical paper summarizes the project work conducted in the development of Kerf-Free silicon wafering equipment for silicon solar wafering. This new PolyMax technology uses a two step process of implantation and cleaving to exfoliate 50um to 120um wafers with thicknesses ranging from 50um to 120um from a 125mm or 156mm pseudo-squared silicon ingot. No kerf is generated using this method of wafering. This method of wafering contrasts with the current method of making silicon solar wafers using the industry standard wire saw equipment. The report summarizes the activity conducted by Silicon Genesis Corporation in working to develop this technology further and to define the roadmap specifications for the first commercial proto-type equipment for high volume solar wafer manufacturing using the PolyMax technology.

  1. ARPA-E Announces $60 Million for Disruptive Technologies to Cut...

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

    Cheryl Martin announced up to 60 million for two new programs to detect and measure methane emissions and develop innovative localized thermal management systems that cut the...

  2. Cuttings Analysis At New River Area (DOE GTP) | Open Energy Informatio...

    Open Energy Info (EERE)

    New River Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At New River Area (DOE GTP) Exploration Activity...

  3. Cuttings Analysis At U.S. South Region (Smith & Dees, 1982) ...

    Open Energy Info (EERE)

    U.S. South Region (Smith & Dees, 1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At U.S. South Region (Smith & Dees,...

  4. NREL Serves as the Energy Department's Showcase for Cutting-Edge...

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

    Serves as the Energy Department's Showcase for Cutting-Edge Fuel Cell Cars Research Studies Fueling System, Driver Behavior, and Vehicle Performance January 25, 2016 The Energy ...

  5. DOE Publishes New Report on Dimming LEDs with Phase-Cut Dimmers...

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

    by energy efficiency organizations and specifiers, and is ... The new report reviews how phase-cut dimmers work, how LEDs ... procedures for designing phase-controlled LED ...

  6. Idaho Site D&D Crew Uses Specialized Tools to Cut Apart Massive Tank in

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

    Demolition Project | Department of Energy D&D Crew Uses Specialized Tools to Cut Apart Massive Tank in Demolition Project Idaho Site D&D Crew Uses Specialized Tools to Cut Apart Massive Tank in Demolition Project November 25, 2015 - 12:05pm Addthis A worker employs a thermal lance to cut apart a massive tank so it can be removed from a building slated for demolition at the Idaho Site's Materials and Fuels Complex. A worker employs a thermal lance to cut apart a massive tank so it can

  7. New 100Gbps Network Will Keep America on Cutting Edge of Innovation...

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

    New 100Gbps Network Will Keep America on Cutting Edge of Innovation November 15, 2011 - ... A new prototype network built by the Energy Department's Energy Sciences Network (ESnet), ...

  8. Pore size distribution and accessible pore size distribution...

    Office of Scientific and Technical Information (OSTI)

    both rank and type (expressed as either hydrogen or vitrinite content) in the size range ... Subject: 01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; 08 HYDROGEN; AMBIENT TEMPERATURE; ...

  9. ARM - Measurement - Particle size distribution

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

    size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Particle size distribution The number of particles present in any given volume of air within a specified size range. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available

  10. Glitter-Sized Solar Photovoltaics

    Broader source: Energy.gov [DOE]

    Featured in this photograph are tiny glitter-sized photovoltaic cells, developed by Sandia National Laboratories scientists, that could revolutionize the way solar energy is collected and used....

  11. ARM - Measurement - Hydrometeor Size Distribution

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

    of hydrometeors observed in a given size range. Categories Atmospheric State, Cloud Properties Instruments The above measurement is considered scientifically relevant for the...

  12. Cutting-edge issues of core-collapse supernova theory

    SciTech Connect (OSTI)

    Kotake, Kei; Nakamura, Ko; Kuroda, Takami; Takiwaki, Tomoya

    2014-05-02

    Based on multi-dimensional neutrino-radiation hydrodynamic simulations, we report several cutting-edge issues about the long-veiled explosion mechanism of core-collapse supernovae (CCSNe). In this contribution, we pay particular attention to whether three-dimensional (3D) hydrodynamics and/or general relativity (GR) would or would not help the onset of explosions. By performing 3D simulations with spectral neutrino transport, we show that it is more difficult to obtain an explosion in 3D than in 2D. In addition, our results from the first generation of full general relativistic 3D simulations including approximate neutrino transport indicate that GR can foster the onset of neutrino-driven explosions. Based on our recent parametric studies using a light-bulb scheme, we discuss impacts of nuclear energy deposition behind the supernova shock and stellar rotation on the neutrino-driven mechanism, both of which have yet to be included in the self-consistent 3D supernova models. Finally we give an outlook with a summary of the most urgent tasks to extract the information about the explosion mechanisms from multi-messenger CCSN observables.

  13. Evaluate fundamental approaches to longwall dust control: Subprogram B, Practical aspects of deep cutting

    SciTech Connect (OSTI)

    Ludlow, J.; Ruggieri, S.

    1990-05-01

    Deep/slow cutting is one of the few changes that a longwall operator can make that will simultaneously reduce respirable dust, increase production and decrease power consumption. Though extensively employed in other countries, the technique has not seen widespread use in the United States. The objective of this research effort was to promote the use of deep/slow cutting by examination of the real and perceived constraints to its application. This report discusses the theoretical and experimental background of cutting with high pick penetration, the benefits to be obtained in terms of reduced dust make and specific energy consumption and the practical imparts of deeper cutting in terms of shearer performance and coal loading. Included in the report are literature references, results of surveys of equipment manufacturers and US longwall operations, results of laboratory and underground testing of deep/slow cutting and specific conclusions and recommendations for use of the technique. 9 figs. 1 tab.

  14. Fundamental underwater cutting method experiment as a dismantling tool for a commercial atomic reactor vessel

    SciTech Connect (OSTI)

    Hamasaki, M.; Murao, Y.; Tateiwa, F.

    1982-10-01

    A new underwater cutting technique applying underwater dismantling to commercial atomic reactor vessels has been developed. This technique involves gas cutting the mild steel underwater after removing the stainless steel cladding by arc gouging. The arc gouging is achieved by blowing out metal--which is melted by an arc between a mild steel electrode wire and the stainless steel--by jetting water from a rear water nozzle. The fuel gas employed for preheating for the gas cutting was a mixed gas of propane and 30% methylacetylene. The test piece used was made of 300-mm-thick mild steel with 8-mm-thick stainless steel cladding. The fundamental cutting experiment was carried out successfully under a cutting speed condition of 15 cm/min at a water depth of 20 cm. This apparatus is easy to handle, compact, and cheap.

  15. C-105 heel pit removed and C-105 dome cut paves way for new retrieval technology

    SciTech Connect (OSTI)

    Mackey, Thomas C.; Sutey, Michael J.

    2013-06-10

    For just the second time, crews have cut a hole in the top of an active radioactive waste storage tank at Hanford. Workers began cutting a 55-inch hole in the top of Tank C-105 last Tuesday night on graveyard shift, completing the cut early Wednesday. The hole will allow for installation of the Mobile Arm Retrieval System (MARS) Vacuum into the tank. The cut was made through 17 inches of concrete and rebar using the newly developed rotary-core cutting system, which uses a laser-guided steel canister with teeth on the bottom to drill a round hole into the tank dome. The project was completed safely and successfully in a high-rad area without contamination or significant dose to workers.

  16. Deformation Behavior of Sub-micron and Micron Sized Alumina Particles in Compression.

    SciTech Connect (OSTI)

    Sarobol, Pylin; Chandross, Michael E.; Carroll, Jay; Mook, William; Boyce, Brad; Kotula, Paul G.; McKenzie, Bonnie B.; Bufford, Daniel Charles; Hall, Aaron Christopher.

    2014-09-01

    The ability to integrate ceramics with other materials has been limited due to high temperature (>800degC) ceramic processing. Recently, researchers demonstrated a novel process , aerosol deposition (AD), to fabricate ceramic films at room temperature (RT). In this process, sub - micro n sized ceramic particles are accelerated by pressurized gas, impacted on the substrate, plastically deformed, and form a dense film under vacuum. This AD process eliminates high temperature processing thereby enabling new coatings and device integration, in which ceramics can be deposited on metals, plastics, and glass. However, k nowledge in fundamental mechanisms for ceramic particle s to deform and form a dense ceramic film is still needed and is essential in advancing this novel RT technology. In this wo rk, a combination of experimentation and atomistic simulation was used to determine the deformation behavior of sub - micron sized ceramic particle s ; this is the first fundamental step needed to explain coating formation in the AD process . High purity, singl e crystal, alpha alumina particles with nominal size s of 0.3 um and 3.0 um were examined. Particle characterization, using transmission electron microscopy (TEM ), showed that the 0.3 u m particles were relatively defect - free single crystals whereas 3.0 u m p articles were highly defective single crystals or particles contained low angle grain boundaries. Sub - micron sized Al 2 O 3 particles exhibited ductile failure in compression. In situ compression experiments showed 0.3um particles deformed plastically, fractured, and became polycrystalline. Moreover, dislocation activit y was observed within the se particles during compression . These sub - micron sized Al 2 O 3 particles exhibited large accum ulated strain (2 - 3 times those of micron - sized particles) before first fracture. I n agreement with the findings from experimentation , a tomistic simulation s of nano - Al 2 O 3 particles showed dislocation slip and

  17. Wear Mechanism of Chemical Vapor Deposition (CVD) Carbide Insert in Orthogonal Cutting Ti-6Al-4V ELI at High Cutting Speed

    SciTech Connect (OSTI)

    Gusri, A. I.; Che Hassan, C. H.; Jaharah, A. G.

    2011-01-17

    The performance of Chemical Vapor Deposition (CVD) carbide insert with ISO designation of CCMT 12 04 04 LF, when turning titanium alloys was investigated. There were four layers of coating materials for this insert i.e.TiN-Al2O3-TiCN-TiN. The insert performance was evaluated based on the insert's edge resistant towards the machining parameters used at high cutting speed range of machining Ti-6Al-4V ELI. Detailed study on the wear mechanism at the cutting edge of CVD carbide tools was carried out at cutting speed of 55-95 m/min, feed rate of 0.15-0.35 mm/rev and depth of cut of 0.10-0.20 mm. Wear mechanisms such as abrasive and adhesive were observed on the flank face. Crater wear due to diffusion was also observed on the rake race. The abrasive wear occurred more at nose radius and the fracture on tool were found at the feed rate of 0.35 mm/rev and the depth of cut of 0.20 mm. The adhesion wear takes place after the removal of the coating or coating delaminating. Therefore, adhesion or welding of titanium alloy onto the flank and rake faces demonstrates a strong bond at the workpiece-tool interface.

  18. Selecting the proper fuel gas for cost-effective oxyfuel cutting

    SciTech Connect (OSTI)

    Lyttle, K.A.; Stapon, W.F.G.; Guimaraes, A.

    1997-07-01

    The motivating factor behind recent research and development efforts in metal cutting has been the growing need for companies everywhere to embrace emerging technologies if they are to complete in the global economy. To quickly implement these productivity improvements and gain lower bottom line costs for welding and cutting operations, rapid commercialization of these process advancements is needed. Although initially more expensive, additive-enhanced fuel gases may be the most cost-effective choice for certain cutting applications. The cost of additive-enhanced fuel gases can be justified where oxygen pricing is low (such as with bulk oxygen). Propylene exhibited equal cutting speeds to acetylene and improved cutting economy under specific conditions, which involved longer cuts on thicker base materials. With a longer cut distance, the extra time required to reach the kindling temperature (when compared to acetylene) becomes less critical. It is important to note that kindling temperature was reached more rapidly with propylene than it was with propane, but both fuel gases were slower than acetylene. When factors such as these are considered, many applications are found to be more cost effectively performed with the more expensive acetylene or propylene fuel gases. Each individual application must be studied on a singular basis to determine the most cost-effective choice when selecting the fuel gas.

  19. Method for sizing hollow microspheres

    DOE Patents [OSTI]

    Farnum, E.H.; Fries, R.J.

    1975-10-29

    Hollow Microspheres may be effectively sized by placing them beneath a screen stack completely immersed in an ultrasonic bath containing a liquid having a density at which the microspheres float and ultrasonically agitating the bath.

  20. Process For Cutting Polymers Electrolyte Multi-Layer Batteries And Batteries Obtained Thereby

    DOE Patents [OSTI]

    Gauthier, Michel; Lessard, Ginette; Dussault, Gaston; Rouillard, Roger; Simoneau, Martin; Miller, Alan Paul

    2003-09-09

    A stacking of battery laminate is prepared, each battery consisting of anode, polymer electrolyte, cathode films and possibly an insulating film, under conditions suitable to constitute a rigid monoblock assembly, in which the films are unitary with one another. The assembly obtained is thereafter cut in predetermined shape by using a mechanical device without macroscopic deformation of the films constituting the assembly and without inducing permanent short circuits. The battery which is obtained after cutting includes at least one end which appears as a uniform cut, the various films constituting the assembly having undergone no macroscopic deformation, the edges of the films of the anode including an electronically insulating passivation film.

  1. Noise and zero point drift in 1.7um cutoff detectors for SNAP

    Office of Scientific and Technical Information (OSTI)

    Noise and zero point drift in 1.7um cutoff detectors for SNAP Roger Smith *a , Christopher ... and Space Science 91-498. 8. R. Smith, M. Bonati, D. Guzman, VIRG Te Dark ...

  2. High oil production continues to cut U.S. oil imports

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

    High oil production continues to cut U.S. oil imports High U.S. crude oil production will help further reduce America's reliance on oil imports during the next two years. In its ...

  3. Have a great idea about how to cut the cost of solar panel installatio...

    Open Energy Info (EERE)

    Have a great idea about how to cut the cost of solar panel installation? Home > Groups > Buildings Dc's picture Submitted by Dc(266) Contributor 7 November, 2014 - 12:13 As prices...

  4. C-105 heel pit removed and C-105 dome cut paves way for new retrieval...

    Office of Scientific and Technical Information (OSTI)

    Program Document: C-105 heel pit removed and C-105 dome cut paves way for new retrieval technology Citation Details In-Document Search Title: C-105 heel pit removed and C-105 dome ...

  5. DOE Publishes Revised Report on Dimming LEDs with Phase-Cut Dimmers

    Broader source: Energy.gov [DOE]

    DOE has revised its October 2013 report, Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success, to include updated information about the installation of LED lighting...

  6. J/{psi} production at the Tevatron and RHIC from s-channel cut

    SciTech Connect (OSTI)

    Lansberg, J. P.; Haberzettl, H.

    2008-08-29

    We report on our recent evaluation of the s-channel cut contribution to J/{psi} hadro-production. We show that it is likely significantly larger than the usual cut contribution of the colour-singlet model (CSM), which is known to underestimate the experimental measurements. Here the s-channel cut develops for configurations with off-shell quarks in the bound state. A correct treatment of its contribution requires the introduction of a four-point function, partially constrained by gauge invariance and limiting behaviours at small and large momenta. When the unconstrained degrees of freedom are fixed to reproduce the Tevatron data, we show that RHIC data are remarkably well reproduced down to very low transverse momenta P{sub T} without need of resummation of initial-state gluon effects. This unique feature might be typical of s-channel cut contribution.

  7. Crystal Solar and NREL Team Up to Cut Costs - News Feature |...

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

    Crystal Solar and NREL Team Up to Cut Costs August 27, 2014 This is a close-up of a greenish-brown solar wafer, square in shape, resting slightly askew on a plate. The...

  8. Effectiveness of Changing Wind Turbine Cut-in Speed to Reduce Bat Fatalities at Wind Facilities

    SciTech Connect (OSTI)

    Huso, Manuela M. P.; Hayes, John P.

    2009-04-01

    This report details an experiment on the effectiveness of changing wind turbine cut-in speed on reducing bat fatality from wind turbines at the Casselman Wind Project in Somerset County, Pennsylvania.

  9. TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus ...

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

    TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus September 6th, 2013 By Kerry Close Within two years, TCAT riders may be able to make their commute on a "clean,...

  10. Secretary Chu Announces New Investments in Cutting-Edge Wind Energy

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

    Research Facilities | Department of Energy Investments in Cutting-Edge Wind Energy Research Facilities Secretary Chu Announces New Investments in Cutting-Edge Wind Energy Research Facilities October 15, 2009 - 12:00am Addthis Washington, DC - U.S. Energy Secretary Steven Chu announced new investments today in three university-led wind energy research facilities that will enhance the United States' leadership role in testing and producing the most advanced and efficient wind turbines in the

  11. Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Research

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

    Projects | Department of Energy Nationwide Begin Work on Cutting-Edge Innovative Research Projects Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Research Projects February 21, 2012 - 12:18pm Addthis Washington, D.C. - Energy Secretary Steven Chu today announced that with support from the Department of Energy, 142 small businesses around the nation are starting work this week on 180 innovative research projects ranging from designing better wind turbines to developing a

  12. Winning the Future: Grand Ronde Solar Projects Reduce Pollution, Cut Costs

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

    | Department of Energy Grand Ronde Solar Projects Reduce Pollution, Cut Costs Winning the Future: Grand Ronde Solar Projects Reduce Pollution, Cut Costs October 20, 2014 - 5:00pm Addthis PV panels installed on Grand Ronde Tribal Housing Authority carport. Photo from GRTHA, NREL 31797 PV panels installed on Grand Ronde Tribal Housing Authority carport. Photo from GRTHA, NREL 31797 Challenge: Situated on nearly 12,000 acres in the heart of Western Oregon's scenic coastal range, the

  13. Better Buildings Challenge to Cut Energy Waste Grows by 1 Billion Square

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

    Feet | Department of Energy to Cut Energy Waste Grows by 1 Billion Square Feet Better Buildings Challenge to Cut Energy Waste Grows by 1 Billion Square Feet May 9, 2014 - 11:01am Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Building on President Obama's Climate Action Plan and the Administration's Better Buildings Challenge, the Energy Department announced today that Better Buildings Challenge partners are on track to meet their energy performance goals in their second year, saving

  14. New Energy Star Initiative Recognizes Cutting-Edge Products with Highest

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

    Energy Efficiency | Department of Energy Star Initiative Recognizes Cutting-Edge Products with Highest Energy Efficiency New Energy Star Initiative Recognizes Cutting-Edge Products with Highest Energy Efficiency July 14, 2011 - 12:00am Addthis WASHINGTON - The U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) today are announcing for the first time products recognized as the most energy-efficient in their categories among those that have earned the Energy Star

  15. New Material has Potential to Cut Costs and Make Nuclear Fuel Recycling

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

    Cleaner: Computer modeling helps pinpoint best material out of a hundred thousand options | Department of Energy New Material has Potential to Cut Costs and Make Nuclear Fuel Recycling Cleaner: Computer modeling helps pinpoint best material out of a hundred thousand options New Material has Potential to Cut Costs and Make Nuclear Fuel Recycling Cleaner: Computer modeling helps pinpoint best material out of a hundred thousand options June 13, 2016 - 10:46am Addthis News release from Pacific

  16. New Working Fluids Cut a Wider Swath of Geothermal Reserves | Department of

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

    Energy Working Fluids Cut a Wider Swath of Geothermal Reserves New Working Fluids Cut a Wider Swath of Geothermal Reserves December 17, 2013 - 12:00am Addthis Scientists at the Energy Department's Pacific Northwest National Laboratory (PNNL) have made a commercially viable discovery: how to capture substantially more heat from low-temperature resources. In a market where binary working fluids are costly and traditionally inefficient, this advance harnesses a much larger sector of near-term

  17. SunShot Awardee 1366 Technologies Turns Cutting-Edge Research into

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

    Manufacturing Success | Department of Energy Awardee 1366 Technologies Turns Cutting-Edge Research into Manufacturing Success SunShot Awardee 1366 Technologies Turns Cutting-Edge Research into Manufacturing Success October 14, 2015 - 2:42pm Addthis 1366 Technician Becky Allen works in a lab at the company’s Bedford, MA demonstration facility. | Photo courtesy of Bob Frechette 1366 Technician Becky Allen works in a lab at the company's Bedford, MA demonstration facility. | Photo courtesy

  18. U.S. Department of Energy and Masdar Collaborate In Testing Cutting-Edge

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

    Solar PV Coating Technologies | Department of Energy Masdar Collaborate In Testing Cutting-Edge Solar PV Coating Technologies U.S. Department of Energy and Masdar Collaborate In Testing Cutting-Edge Solar PV Coating Technologies February 28, 2011 - 12:00am Addthis Abu Dhabi-UAE: The U.S. Department of Energy (DOE) and Masdar, Abu Dhabi's multifaceted renewable energy initiative, announced that they will collaborate to test the performance of specially coated solar photovoltaic modules

  19. DOE, State Officials Cut Ribbon for New WIPP Emergency Operations Center

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

    April 7, 2016 DOE, State Officials Cut Ribbon for New WIPP Emergency Operations Center New Mexico Governor Susana Martinez joined U.S. Department of Energy (DOE) officials for a ribbon cutting ceremony to mark the completion of a new state-of-the- art Emergency Operations Center (EOC) located in Carlsbad, NM. "We're pleased to share this accomplishment with Governor Martinez and other state and community leaders," said Mark Whitney, DOE's Principal Deputy Assistant Secretary for

  20. Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen-Enriched

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

    Air | Department of Energy Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen-Enriched Air Cutting NOx from Diesel Engines with Membrane-Generated Nitrogen-Enriched Air 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_bowser.pdf (615.73 KB) More Documents & Publications Membrane Technology Workshop Advanced Reciprocating Engine Systems (ARES) R&D - Presentation by Argonne National Laboratory, June 2011 Diesel Engine

  1. U.S. Organizations Recognized for Cutting Parking Facility Energy Use by 60

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

    Percent | Department of Energy Organizations Recognized for Cutting Parking Facility Energy Use by 60 Percent U.S. Organizations Recognized for Cutting Parking Facility Energy Use by 60 Percent June 29, 2015 - 11:57am Addthis NEWS MEDIA CONTACT (202) 586-4940 As part of the Energy Department's effort to support U.S. businesses working to save money by saving energy, the Better Buildings Alliance's Lighting Energy Efficiency in Parking (LEEP) Campaign recognized 18 organizations for leading

  2. Under Secretary Klotz delivers remarks at PREP ribbon-cutting | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration | (NNSA) Under Secretary Klotz delivers remarks at PREP ribbon-cutting Wednesday, June 18, 2014 - 1:23pm Under Secretary Klotz delivered remarks at the Pantex Renewable Energy Project (PREP) ribbon-cutting this week. PREP establishes the largest federally-owned wind farm in the country and will generate approximately 47 million kilowatt-hours of electricity annually, more than 60 percent of the electricity needed for Pantex. The project will reduce CO2

  3. Indirect-Fired Kiln Conserves Scrap Aluminum and Cuts Costs | Department of

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

    Energy Indirect-Fired Kiln Conserves Scrap Aluminum and Cuts Costs Indirect-Fired Kiln Conserves Scrap Aluminum and Cuts Costs This case study examines a succesful process heating technology improvement implemented by Wabash Alloys at its East Syracuse, New York, facility. A demonstration project conducted at this plant by Energy Research Company (ERCo), of Staten Island, New York, involves a new energy-efficient kiln that heats scrap aluminum for reuse. This kiln has enabled Wabash to

  4. EERE Success Story-California: Cutting-Edge Biofuels Research and

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

    Entrepreneurship Provide a Proving Ground | Department of Energy Cutting-Edge Biofuels Research and Entrepreneurship Provide a Proving Ground EERE Success Story-California: Cutting-Edge Biofuels Research and Entrepreneurship Provide a Proving Ground April 18, 2013 - 12:00am Addthis The Advanced Biofuels Process Demonstration Unit (ABPDU) at DOE's Lawrence Berkeley National Laboratory provides state-of-the-art facilities for advanced biofuels and bioproducts production to create efficient

  5. EERE Success Story-Sandia Algae Researchers Cut Costs with Improved

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

    Nutrient Recycling | Department of Energy Sandia Algae Researchers Cut Costs with Improved Nutrient Recycling EERE Success Story-Sandia Algae Researchers Cut Costs with Improved Nutrient Recycling October 19, 2015 - 3:40pm Addthis Ryan Davis and Sandia National Laboratories colleagues have developed a method to recycle critical and costly algae cultivation nutrients phosphate and nitrogen. Photo by Dino Vournas. Ryan Davis and Sandia National Laboratories colleagues have developed a method

  6. DOE Awards Supercomputer Access to Cutting-Edge Projects | Department of

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

    Energy Supercomputer Access to Cutting-Edge Projects DOE Awards Supercomputer Access to Cutting-Edge Projects December 18, 2008 - 8:51am Addthis WASHINGTON, D.C. - The U.S. Department of Energy's (DOE) Office of Science announced today that 66 projects addressing some of the greatest scientific challenges have been awarded access to some of the world's most powerful supercomputers at DOE national laboratories. The projects-competitively selected for their technical readiness and scientific

  7. The performance of cermet cutting tools when machining an Ni-Cr-Mo (En 24) steel

    SciTech Connect (OSTI)

    Ezugwu, E.O.; Lim, S.K.

    1995-02-01

    Recently developed grades of cermet cutting tool materials, physical vapor deposition (PVD)-coated and uncoated, were used to machine a high-strength and relatively difficult-to-cut steel at cutting conditions typical of finish machining. Comparative tests were carried out with chemical vapor deposition (CVD)-coated (TiC + Al{sub 2}O{sub 3}) carbide inserts at similar cutting conditions. The test results show that the PVD-coated cermet tools outperformed both the uncoated cermet and CVD-coated carbide tools at higher speed conditions due to their increased mechanical and thermal shock resistance as well as the high lubricity of the TiN coating layer. The coated cermet tools were rejected mainly due to the generation of poor surface finish on the machined surface after prolonged machining due to the increased tool-workpiece contact area, with increasing flank wear, which permits access for dislodged hard particles into the interface. Plastic deformation of the cutting edge of the coated cermet tools tends to dampen the machining operation, leading to a reduction in both the cutting and feed forces. 9 refs., 10 figs., 1 tab.

  8. Australian liquids-handling system cuts surges to LPG plant

    SciTech Connect (OSTI)

    McKee, G.; Stenner, T.D. )

    1990-08-06

    This paper reports how a pipeline liquids-handling facility recently commissioned allows gas production to be quickly ramped up to meet customer demand. Its design eliminates trouble-some liquid surges which had hampered plant operations. The pipeline-loop system, located at the Wallumbilla LPG processing plant, Queensland, was built for 60 of the cost of an equivalently sized conventional slug catcher. Its control system enables automatic, unattended handling of liquid surges and pigging slugs from the 102-km Silver Springs to Wallumbilla two-phase pipeline. Because of this system's simple hydraulics, normal slug-catcher piping design problems are eliminated. Safety is improved because the potentially hazardous condensate liquid is contained in a buried pipeline.

  9. Technical efforts focus on cutting LNG plant costs

    SciTech Connect (OSTI)

    Aoki, Ichizo; Kikkawa, Yoshitsugi

    1995-07-03

    LNG demand is growing due to the nuclear setback and environmental issues spurred by concern about the greenhouse effect and acid rain, especially in the Far East. However, LNG is expensive compared with other energy sources. Efforts continue to minimize capital and operating costs and to increase LNG plant availability and safety. Technical trends in the LNG industry aim at reducing plant costs in pursuit of a competitive LNG price on an energy value basis against the oil price. This article reviews key areas of technical development. Discussed are train size, liquefaction processes, acid gas removal, heavy end removal, nitrogen rejection, refrigeration compressor and drivers, expander application, cooling media selection, LNG storage and loading system, and plant availability.

  10. Method for cutting steam heat losses during cyclic steam injection of wells. Sixth quarterly report

    SciTech Connect (OSTI)

    1995-08-01

    Slot-cutting tests were made in a 3.5 in. OD steel pipe representative of the proposed liner of the twin gravel-packed horizontal drainholes used in this Method, for the following purposes: (1)To determine the force required to punch through the liner wall in order to achieve its full penetration with a cutting wheel, (2)To select the most effective profile for the cutting wheel. The results of these tests, made at UC-Berkeley indicated that, with four cutting wheels, as included in the tool design presented in the Fourth Quarterly Report, the total force required was nearly 60,000 lb. In view of the limited tool diameter, the creation of such a large force with a single piston required a hydraulic pressure which would exceed the capability of the Triplex pump, most commonly available in the oil fields. A re-design of the 4-wheel slot-cutting tool with two tandem pistons was done, but revealed a high degree of complexity, related to the difficulty of providing a high-pressure fluid path in the thin housing wall from the hydraulic cylinder above the first pair of arms to a cylinder for the tandem piston located below the first pair of cutter arms and operating the second pair of arms. By reducing the number of cutting wheels from 4 to 3 a single piston driver was sufficient and could result in a tool much simpler to build and to maintain in the Field.The re-designed 3-wheel slot-cutting tool is presented here. It is currently under construction at UC-Berkeley. A second test program will follow, when this simplified modular tool has been assembled. The objective of this second series of tests is to determine the required characteristics of the opposing spring, or Belleville rings stack which, in the new design, is used for retraction of the cutters, rather than for their extension.

  11. Strategy Guideline: HVAC Equipment Sizing

    SciTech Connect (OSTI)

    Burdick, A.

    2012-02-01

    The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.

  12. The effects of size reduction techniques on TCLP analysis of solidified mixed waste

    SciTech Connect (OSTI)

    Thiel, R.D.; McLaurin, A.W.; Kochen, R.L.

    1993-07-01

    The Rocky Flats Plant (RFP) generates and stores mixed wastes that are subject to regulation under the Resource Conservation and Recovery Act (RCRA) Land Disposal Restrictions (LDR). Low level mixed wastes at RFP are destined for disposal at the Nevada Test Site (NTS), and thus must meet stringent NTS Waste Acceptance Criteria (WAC), including free liquids, dispersible solids, and Toxicity Characteristic Leaching Procedure (TCLP) requirements. TCLP requires size reduction of the waste form to less than 0.95 centimeters. This can be accomplished by cutting, crushing, or grinding. These classic size reduction methods have the effect of exposing more surface area of the waste. Stabilization technologies under investigation at RFP include polymer encapsulation by co-extruding the waste with low density polyethylene and microwave melting. The objective of this study is to evaluate the effects of different size reduction methods on TCLP results for polyethylene-encapsulated and microwave melted surrogate waste.

  13. ARM - Datastreams - aospsap3w

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

    ) Aerosol light absorption coefficient, nominal red wavelength at dry or reference RH 1Mm BaR ( time ) Absorption Coefficient Red, 3 wavelength PSAP, 1 um size cut 1Mm ...

  14. D.C. Showcases Cutting-Edge Hydrogen Fueling Station Demo | Department of

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

    Energy D.C. Showcases Cutting-Edge Hydrogen Fueling Station Demo D.C. Showcases Cutting-Edge Hydrogen Fueling Station Demo July 11, 2016 - 2:30pm Addthis Acting Assistant Secretary for Energy Efficiency and Renewable Energy David Friedman speaks at the opening of a hydrogen fueling technology demonstration station in Washington, D.C. | Photos by Mike Mueller/The Hannon Group Acting Assistant Secretary for Energy Efficiency and Renewable Energy David Friedman speaks at the opening of a

  15. Rooftop Solar Challenge to Cut Solar's Red Tape | Department of Energy

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

    Challenge to Cut Solar's Red Tape Rooftop Solar Challenge to Cut Solar's Red Tape December 1, 2011 - 4:35pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this project do? The 22 teams will implement step-by-step actions throughout the next year to standardize solar permitting processes, update planning and zoning codes, improve standards for connecting solar power to the electric grid, and increase access to financing. Up to 40

  16. Solar Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge

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

    Pilot Plant | Department of Energy Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge Pilot Plant Solar Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge Pilot Plant July 25, 2011 - 9:44am Addthis A tiny Semprius HCPV cell, mounted on an interposer. Each cell is only 0.6mm on one side. | Photo courtesy of Semprius A tiny Semprius HCPV cell, mounted on an interposer. Each cell is only 0.6mm on one side. | Photo courtesy of Semprius A prototype of the

  17. EM Launches Revamped Website: New cutting-edge platform with sleek

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

    appearance focuses on ease-of-use | Department of Energy Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use EM Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use January 7, 2013 - 12:00pm Addthis A screenshot of the newly revamped EM website. A screenshot of the newly revamped EM website. EM's previous website EM's previous website A screenshot of the newly revamped EM website. EM's previous website

  18. NREL: Technology Deployment - U.S. Virgin Islands Cut Diesel Use for

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

    Electricity and Water Production by 20% U.S. Virgin Islands Cut Diesel Use for Electricity and Water Production by 20% News NREL Helping Virgin Islands Cut Fuel Use U.S. Virgin Islands Begins Collecting Wind Resource Data: A Wind Powering America Success Story NREL Helps U.S. Virgin Islands Install Wind Testing Equipment U.S. Virgin Islands Makes Aggressive Energy Pledge at NREL Publications USVI Energy Road Map: Charting the Course to a Clean Energy Future U.S. Virgin Islands Energy Road

  19. U.S. Parking Facilities Cut Energy Use by 90 Percent, Switch 270 Million

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

    Square Feet to Energy Efficient Lighting | Department of Energy Parking Facilities Cut Energy Use by 90 Percent, Switch 270 Million Square Feet to Energy Efficient Lighting U.S. Parking Facilities Cut Energy Use by 90 Percent, Switch 270 Million Square Feet to Energy Efficient Lighting April 16, 2014 - 10:55am Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - As part of the Energy Department's commitment to helping U.S. businesses save money by saving energy, the Department's Better

  20. Clean Cities Helps Nonprofit Cut Fuel Costs with Propane | Department of

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

    Energy Helps Nonprofit Cut Fuel Costs with Propane Clean Cities Helps Nonprofit Cut Fuel Costs with Propane May 15, 2013 - 4:10pm Addthis Mississippi's Community Counseling Services converted 29 vans to run on propane, saving more than $1.50 per gallon on fuel or more than $60,000 a year. | Photo courtesy of Community Counseling Services. Mississippi's Community Counseling Services converted 29 vans to run on propane, saving more than $1.50 per gallon on fuel or more than $60,000 a year. |

  1. Microsoft Word - Fly Cutting Request Formrev4-11rev.doc

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

    Fly Cutting Request Form rev 4/11 Contact Information Date _____/___/_____ Technical Information Sample ID Material to be Cut (Su8, PMMA, Graphite, other) Thickness (microns) Initial Thickness (microns) Final Thickness (microns) Actual 1 2 3 4 5 6 Comments or special instructions necessary for satisfactory flycutting  Forward form and samples to Varshni Singh, 225-578-0248, Room #130, vsingh2@lsu.edu  For technical issues contact Varshni Singh, 225-578-0248, Room #130, vsingh2@lsu.edu 

  2. Cut Gas Costs This Holiday Traveling Season with Three Easy Tips |

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

    Department of Energy Cut Gas Costs This Holiday Traveling Season with Three Easy Tips Cut Gas Costs This Holiday Traveling Season with Three Easy Tips November 26, 2013 - 9:23am Addthis Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Jason

  3. Restored Drill Cuttings for Wetlands Creation: Results of Mesocosm Approach to Emulate Field Conditions Under Varying Salinity and Hydrologic Conditions

    SciTech Connect (OSTI)

    Hester, Mark W.; Shaffer, Gary P.; Willis Jonathan M.; DesRoches, Dennis J.

    2001-02-21

    This study builds upon earlier research conducted by Southeastern Louisiana University concerning the efficacy of utilizing processed drill cuttings as an alternative substrate source for wetland rehabilitation (wetland creation and restoration). Previous research has indicated that processed drill cuttings exhibit a low degree of contaminant migration from the process drill cuttings to interstitial water and low toxicity, as tested by seven-day mysid shrimp chronic toxicity trials.

  4. Process for producing gasoline of high octane number and particularly lead free gasoline, from olefininc c3-c4 cuts

    SciTech Connect (OSTI)

    Hellin, M.; Juguin, B.; Torck, B.; Vu, Q. D.

    1981-05-19

    Lead free gasoline of high octane number is obtained from C/sub 3/ and C/sub 4/ olefinic cuts as follows: propylene contained in the C/sub 3/ cut is oligomerized, at least 80% of the isobutene and less than 40% of the n-butenes of the C/sub 4/ cut are oligomerized to form an oligomerizate distilling in the gasoline range, which is separated from the unreacted C/sub 4/ hydrocarbons, the latter are subsequently alkylated to form a gasoline fraction which can be admixed with the oligomerizates of the Cnumber and the C/sub 4/ cuts to produce the desired high octane gasoline.

  5. Drilling and cutting of thin metal plates in water with radiation of a repetitively pulsed Nd : YAG laser

    SciTech Connect (OSTI)

    Glova, A F; Lysikov, A Yu

    2011-10-31

    The conditions of drilling and cutting of 0.15-mm-thick titanium and stainless steel plates in water with the radiation of a repetitively pulsed Nd : YAG laser having the mean power up to 30 W are studied experimentally in the absence of water and gas jets. Dependences of the maximal cutting speed in water on the radiation power are obtained, the cutting efficiency is determined, and the comparison with the conditions of drilling and cutting of plates in air is carried out.

  6. Analysis of laser remote fusion cutting based on a mathematical model

    SciTech Connect (OSTI)

    Matti, R. S.; Ilar, T.; Kaplan, A. F. H.

    2013-12-21

    Laser remote fusion cutting is analyzed by the aid of a semi-analytical mathematical model of the processing front. By local calculation of the energy balance between the absorbed laser beam and the heat losses, the three-dimensional vaporization front can be calculated. Based on an empirical model for the melt flow field, from a mass balance, the melt film and the melting front can be derived, however only in a simplified manner and for quasi-steady state conditions. Front waviness and multiple reflections are not modelled. The model enables to compare the similarities, differences, and limits between laser remote fusion cutting, laser remote ablation cutting, and even laser keyhole welding. In contrast to the upper part of the vaporization front, the major part only slightly varies with respect to heat flux, laser power density, absorptivity, and angle of front inclination. Statistical analysis shows that for high cutting speed, the domains of high laser power density contribute much more to the formation of the front than for low speed. The semi-analytical modelling approach offers flexibility to simplify part of the process physics while, for example, sophisticated modelling of the complex focused fibre-guided laser beam is taken into account to enable deeper analysis of the beam interaction. Mechanisms like recast layer generation, absorptivity at a wavy processing front, and melt film formation are studied too.

  7. Safe welding and cutting practices in refineries, gasoline plants, and petrochemical plants

    SciTech Connect (OSTI)

    Not Available

    1988-01-01

    In this standard, suggested precautions are outlined for the protection of persons from injury and for the protection of property from damage by fire which might arise during the operation of gas and electric cutting and welding equipment in and around petroleum operations.

  8. Cross-cutting Issues Working Session | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Cross-cutting Issues Working Session Advanced Scientific Computing Research (ASCR) ASCR Home About Research Applied Mathematics Computer Science Exascale Tools Workshop Programming Challenges Workshop Architectures I Workshop External link Architectures II Workshop External link Next Generation Networking Scientific Discovery through Advanced Computing (SciDAC) ASCR SBIR-STTR Facilities Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory Committee

  9. NREL Recommends Ways to Cut Building Energy Costs in Half (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-07-01

    Building designers and operators could cut energy use by 50% in large office buildings, hospitals, schools, and a variety of stores - including groceries, general merchandise outlets, and retail outlets - by following the recommendations of researchers at the National Renewable Energy Laboratory (NREL).

  10. NREL Recommends Ways to Cut Building Energy Costs in Half (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01

    Building designers and operators could cut energy use by 50% in large office buildings, hospitals, schools, and a variety of stores -- including groceries, general merchandise outlets, and retail outlets -- by following the recommendations of NREL researchers. The innovative energy-saving recommendations are contained in technical support documents and Advanced Energy Design Guides compiled by NREL.