Sample records for underground insulated piping

  1. Heat transfer model of above and underground insulated piping systems

    SciTech Connect (OSTI)

    Kwon, K.C.

    1998-07-01T23:59:59.000Z

    A simplified heat transfer model of above and underground insulated piping systems was developed to perform iterative calculations for fluid temperatures along the entire pipe length. It is applicable to gas, liquid, fluid flow with no phase change. Spreadsheet computer programs of the model have been developed and used extensively to perform the above calculations for thermal resistance, heat loss and core fluid temperature.

  2. Pipe Insulation Economies

    E-Print Network [OSTI]

    Schilling, R. E.

    PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram written in IBM basic to simplify the economic insulation thickness for an insulated pipe. Many... ECONOMIES" 30 LOCATE 10,29:PRINT"ROBERT E. SCHILLING,P.E." 40 LOCATE l2,3l:PRINT"EATON CORPORATION" 50 LOCATE l3,26:PRINT"119 Q SOUTH CHILLICOTHE ROAD" 598 ESL-IE-86-06-97 Proceedings from the Eighth Annual Industrial Energy Technology Conference...

  3. Aerogel Impregnated Polyurethane Piping and Duct Insulation ...

    Energy Savers [EERE]

    Aerogel Impregnated Polyurethane Piping and Duct Insulation Aerogel Impregnated Polyurethane Piping and Duct Insulation Emerging Technologies Project for the 2013 Building...

  4. ASBESTOS PIPE-INSULATION REMOVAL ROBOT SYSTEM

    SciTech Connect (OSTI)

    Unknown

    2000-09-15T23:59:59.000Z

    This final topical report details the development, experimentation and field-testing activities for a robotic asbestos pipe-insulation removal robot system developed for use within the DOE's weapon complex as part of their ER and WM program, as well as in industrial abatement. The engineering development, regulatory compliance, cost-benefit and field-trial experiences gathered through this program are summarized.

  5. Closure report for underground storage tank 161-R1U1 and its associated underground piping

    SciTech Connect (OSTI)

    Mallon, B.J.; Blake, R.G.

    1994-05-01T23:59:59.000Z

    Underground storage tank (UST) 161-31 R at the Lawrence Livermore National Laboratory (LLNL) was registered with the State Water Resources Control Board on June 27, 1984. UST 161-31R was subsequently renamed UST 161-R1U1 (Fig. A-1, Appendix A). UST 161-R1U1 was installed in 1976, and had a capacity of 383 gallons. This tank system consisted of a fiberglass reinforced plastic tank, approximately 320 feet of polyvinyl chloride (PVC) underground piping from Building 161, and approximately 40 feet of PVC underground piping from Building 160. The underground piping connected laboratory drains and sinks inside Buildings 160 and 161 to UST 161-R1U1. The wastewater collected in UST 161-R1U1, contained organic solvents, metals, inorganic acids, and radionuclides, most of which was produced within Building 161. On June 28, 1989, the UST 161-R1U1 piping system.around the perimeter of Building 161 failed a precision test performed by Gary Peters Enterprises (Appendix B). The 161-R1U1 tank system was removed from service after the precision test. In July 1989, additional hydrostatic tests and helium leak detection tests were performed (Appendix B) to determine the locations of the piping failures in the Building 161 piping system. The locations of the piping system failures are shown in Figure A-2 (Appendix A). On July 11, 1989, LLNL submitted an Unauthorized Release Report to Alameda County Department of Environmental Health (ACDEH), Appendix C.

  6. Insulation of Pipe Bends Improves Efficiency of Hot Oil Furnaces

    E-Print Network [OSTI]

    Haseltine, D. M.; Laffitte, R. D.

    of the convective sections. Consultation with the furnace manufacturer then revealed that furnaces made in the 1960's tended to not insulate the pipe bends in the convective section. When insulation was added within the covers of the pipe bends on one furnace...

  7. Minimize environmental impacts when replacing underground pipe

    SciTech Connect (OSTI)

    Miller, L.R. [Ashland Petroleum Co., Catlettsburg, KY (United States); Kroll, T.R. [Insituform Technologies, Inc., Memphis, TN (United States)

    1997-02-01T23:59:59.000Z

    A US refiner urgently needed to repair a 40-year-old oily-water sewer system without disrupting processing operations. Equally important, the refiner wanted to minimize soil and groundwater contamination. In this case history, the refiner elected to use an alternative method--trenchless rehabilitation--to make required underground repairs.

  8. Correctly specify insulation for process equipment and piping

    SciTech Connect (OSTI)

    Allen, C. [Raytheon Engineers and Constructors, Birmingham, AL (United States)

    1997-05-01T23:59:59.000Z

    Insulation serves as a thermal barrier to resist the flow of heat. When insulation is installed over piping or equipment to minimize heat losses, the insulation is categorized as heat conservation. Software programs for determining heat losses are based on ASTM C 680. If heat conservation insulation is calculated to determine the most cost-effective thickness for piping or equipment, then the insulation is categorized as economic insulation. Methods for manually determining economic thicknesses using various graphs and precalculated charts are given in Turner and Malloy. However, modern software programs available from industrial associations calculate economic thicknesses based on after-tax annual costs. Costs associated with owning insulation are expressed on an equivalent uniform annual cost basis. The thickness with the lowest annual cost is reported as the economic thickness. Some of the economic data needed to calculate economic thicknesses are fuel cost, depreciation period, annual fuel inflation rate, annual hours of operation, return on investment, effective income tax rate, annual insulation maintenance costs, and installed costs. To obtain accurate economical thicknesses, it is best to solicit installed costs from a local contractor likely to bid on the work. This paper covers the most suitable insulation materials for certain applications, the most economic material and thickness to use, and how the total insulation system should be designed.

  9. Closure report for underground storage tank 141-R3U1 and its associated underground piping

    SciTech Connect (OSTI)

    Mallon, B.J.; Blake, R.G.

    1994-03-01T23:59:59.000Z

    Underground storage tank UST 141-R3U1 at Lawrence Livermore National Laboratory (LLNL), was registered with the State Water Resources Control Board on June 27, 1984. This tank system consisted of a concrete tank, lined with polyvinyl chloride, and approximately 100 feet of PVC underground piping. UST 141-R3U1 had a capacity of 450 gallons. The underground piping connected three floor drains and one sink inside Building 141 to UST 141-R3U1. The wastewater collected in UST 141-R3U1 contained organic solvents, metals, and inorganic acids. On November 30, 1987, the 141-R3U1 tank system failed a precision tank test. The 141-R3U1 tank system was subsequently emptied and removed from service pending further precision tests to determine the location of the leak within the tank system. A precision tank test on February 5, 1988, was performed to confirm the November 30, 1987 test. Four additional precision tests were performed on this tank system between February 25, 1988, and March 6, 1988. The leak was located where the inlet piping from Building 141 penetrates the concrete side of UST 141-R3U1. The volume of wastewater that entered the backfill and soil around and/or beneath UST 141-R3U1 is unknown. On December 13, 1989, the LLNL Environmental Restoration Division submitted a plan to close UST 141-R3U1 and its associated piping to the Alameda County Department of Environmental Health. UST 141-R3U1 was closed as an UST, and shall be used instead as additional secondary containment for two aboveground storage tanks.

  10. asbestos pipe-insulation removal: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  11. BOA: Pipe-asbestos insulation removal robot system

    SciTech Connect (OSTI)

    Schempf, H.; Bares, J.; Mutschler, E. [and others

    1995-12-31T23:59:59.000Z

    This paper describes the BOA system, a mobile pipe-external crawler used to remotely strip and bag (possibly contaminated) asbestos-containing lagging and insulation materials (ACLIM) from various diameter pipes in (primarily) industrial installations across the DOE weapons complex. The mechanical removal of ACLIM is very cost-effective due to the relatively low productivity and high cost involved in human removal scenarios. BOA, a mechanical system capable of removing most forms of lagging (paper, plaster, aluminum sheet, clamps, screws and chicken-wire), and insulation (paper, tar, asbestos fiber, mag-block) uses a circular cutter and compression paddles to cut and strip the insulation off the pipe through compression, while a HEPA-filter and encapsulant system maintain a certifiable vacuum and moisture content inside the system and on the pipe, respectively. The crawler system has been built and is currently undergoing testing. Key design parameters and performance parameters are developed and used in performance testing. Since the current system is a testbed, we also discuss future enhancements and outline two deployment scenarios (robotic and manual) for the final system to be designed and completed by the end of FY `95. An on-site demonstration is currently planned for Fernald in Ohio and Oak Ridge in Tennessee.

  12. BOA: Asbestos pipe insulation removal robot system. Phase 1

    SciTech Connect (OSTI)

    Schempf, H.; Bares, J.E.

    1995-02-01T23:59:59.000Z

    The project described in this report targets the development of a mechanized system for safe, cost-efficient and automated abatement of asbestos containing materials used as pipe insulation. Based on several key design criteria and site visits, a proof-of-concept prototype robot system, dubbed BOA, was designed and built, which automatically strips the lagging and insulation from the pipes, and encapsulates them under complete vacuum operation. The system can operate on straight runs of piping in horizontal or vertical orientations. Currently we are limited to four-inch diameter piping without obstacles as well as a somewhat laborious emplacement and removal procedure -- restrictions to be alleviated through continued development. BOA removed asbestos at a rate of 4-5 ft./h compared to 3 ft./h for manual removal of asbestos with a 3-person crew. The containment and vacuum system on BOA was able to achieve the regulatory requirement for airborne fiber emissions of 0.01 fibers/ccm/ 8-hr. shift. This program consists of two phases. The first phase was completed and a demonstration was given to a review panel, consisting of DOE headquarters and site representatives as well as commercial abatement industry representatives. Based on the technical and programmatic recommendations drafted, presented and discussed during the review meeting, a new plan for the Phase II effort of this project was developed. Phase 11 will consist of a 26-month effort, with an up-front 4-month site-, market-, cost/benefit and regulatory study before the next BOA robot (14 months) is built, and then deployed and demonstrated (3 months) at a DOE site (such as Fernald or Oak Ridge) by the beginning of FY`97.

  13. Effects of Reinsulating Underground Steam Pipes- A Case Study

    E-Print Network [OSTI]

    Mentzer, T.

    -13, 1999 Figure 5. The pumping process on the street. FINDINGS Line Losses The following table shows the monthly average steam flow rates in pounds per hour for each of the meters since January 1997. For September and October 1998, electric power... of the 12" and 8" diameter piping. There are six steam vaults between the two-meter 167 ESL-IE-99-05-24 Proceedings from the Twenty-first National Industrial Energy Technology Conference, Houston, TX, May 12-13, 1999 -- ------ locations. These vaults...

  14. BOA: Asbestos pipe-insulation removal robot system, Phase 2. Topical report, January--June 1995

    SciTech Connect (OSTI)

    Schempf, H.; Bares, J.E.

    1995-06-01T23:59:59.000Z

    This report explored the regulatory impact and cost-benefit of a robotic thermal asbestos pipe-insulation removal system over the current manual abatement work practice. The authors are currently in the second phase of a two-phase program to develop a robotic asbestos abatement system, comprised of a ground-based support system (including vacuum, fluid delivery, computing/electronics/power, and other subsystems) and several on-pipe removal units, each sized to handle pipes within a given diameter range. The intent of this study was to (i) aid in developing design and operational criteria for the overall system to maximize cost-efficiency, and (ii) to determine the commercial potential of a robotic pipe-insulation abatement system.

  15. An underground nuclear power station using self-regulating heat-pipe controlled reactors

    DOE Patents [OSTI]

    Hampel, V.E.

    1988-05-17T23:59:59.000Z

    A nuclear reactor for generating electricity is disposed underground at the bottom of a vertical hole that can be drilled using conventional drilling technology. The primary coolant of the reactor core is the working fluid in a plurality of thermodynamically coupled heat pipes emplaced in the hole between the heat source at the bottom of the hole and heat exchange means near the surface of the earth. Additionally, the primary coolant (consisting of the working fluid in the heat pipes in the reactor core) moderates neutrons and regulates their reactivity, thus keeping the power of the reactor substantially constant. At the end of its useful life, the reactor core may be abandoned in place. Isolation from the atmosphere in case of accident or for abandonment is provided by the operation of explosive closures and mechanical valves emplaced along the hole. This invention combines technology developed and tested for small, highly efficient, space-based nuclear electric power plants with the technology of fast- acting closure mechanisms developed and used for underground testing of nuclear weapons. This invention provides a nuclear power installation which is safe from the worst conceivable reactor accident, namely, the explosion of a nuclear weapon near the ground surface of a nuclear power reactor. 5 figs.

  16. Underground nuclear power station using self-regulating heat-pipe controlled reactors

    DOE Patents [OSTI]

    Hampel, Viktor E. (Pleasanton, CA)

    1989-01-01T23:59:59.000Z

    A nuclear reactor for generating electricity is disposed underground at the bottom of a vertical hole that can be drilled using conventional drilling technology. The primary coolant of the reactor core is the working fluid in a plurality of thermodynamically coupled heat pipes emplaced in the hole between the heat source at the bottom of the hole and heat exchange means near the surface of the earth. Additionally, the primary coolant (consisting of the working flud in the heat pipes in the reactor core) moderates neutrons and regulates their reactivity, thus keeping the power of the reactor substantially constant. At the end of its useful life, the reactor core may be abandoned in place. Isolation from the atmosphere in case of accident or for abandonment is provided by the operation of explosive closures and mechanical valves emplaced along the hole. This invention combines technology developed and tested for small, highly efficient, space-based nuclear electric power plants with the technology of fast-acting closure mechanisms developed and used for underground testing of nuclear weapons. This invention provides a nuclear power installation which is safe from the worst conceivable reactor accident, namely, the explosion of a nuclear weapon near the ground surface of a nuclear power reactor.

  17. Economics of PPP-insulated pipe-type cable: Final report

    SciTech Connect (OSTI)

    Ernst, A.

    1987-10-01T23:59:59.000Z

    This study has been designed to establish the economic range of application and the potential cost advantage of PPP-insulated pipe-type cable compared with presently utilized paper-insulated designs. The study is in two parts. In the first part the electrical and thermal characteristics of a range of cable sizes are tabulated. This data can be utilized for planning and economic comparison purposes. In the second part 12 transmission load scenarios are studied to determine the relative cost of various designs considering materials, installation and the losses over a wide range of assumptions.

  18. Interlaboratory comparison of the horizontal pipe insulation test apparatus up to 350{degrees}C

    SciTech Connect (OSTI)

    Whitaker, T.E. [Pabco, Fruita, CO (United States); Graves, R.S. [Oak Ridge National Lab., TN (United States); McElroy, D.L. [McElroy (David L.), Knoxville, TN (United States); Smith, D.R. [National Institute of Standards and Technology, Boulder, CO (United States)

    1993-12-01T23:59:59.000Z

    The purpose of this interlaboratory comparison was to provide information for the precision and bias section in the ASTM Standard Test Method C 335, {open_quotes}Steady-State Heat Transfer Properties of Horizontal Pipe Insulation.{close_quotes} (The text describes the ASTM C 335 test method, the specimens tested and the test protocol). The apparent thermal conductivity of two rigid calcium silicate pipe insulation specimens was measured by eight laboratories. Each laboratory measured both specimens at four different temperatures. The test mean temperatures ranged from 35 to 390{degrees}C. The two standard deviation value for the data ranged from 4.5 to 7.7% and the average value was 6.3%. The statement recommended for the precision and bias statement for Section 13.1.4 of ASTM C 335 is: {open_quotes}Tests performed at seven different laboratories using guarded-end horizontal pipe test apparatus and at one laboratory using an unguarded cylindrical screen test apparatus on two specimens of calcium silicate insulation in the range of mean temperatures from 35 to 390{degree}C did not vary by more than 6.3% (two standard deviations) of the average.{close_quotes}

  19. Evaluation of 230 kV HPFF pipe-type cable with wrinkled and creased insulating tapes

    SciTech Connect (OSTI)

    Seman, G.W.; Katz, C. [Cable Technology Labs., Inc., New Brunswick, NJ (United States)] [Cable Technology Labs., Inc., New Brunswick, NJ (United States); Pancholi, S.V. [Potomac Electric Power Co., Washington, DC (United States)] [Potomac Electric Power Co., Washington, DC (United States)

    1995-01-01T23:59:59.000Z

    Severe collapse wrinkles and circumferential creases were discovered in the cellulose paper insulating tapes of a newly installed IIPFF pipe-type cable during splicing and terminating. An evaluation program was developed to assess the electrical and mechanical integrity of the cable having wrinkled and creased insulating tapes. The test results indicated that the cable would perform satisfactorily in service.

  20. Development of optimized PPP insulated pipe-cable systems in the commercial voltage range

    SciTech Connect (OSTI)

    Allam, E.M.; McKean, A.L. (Cablec Corp., Yonkers, NY (United States))

    1992-05-01T23:59:59.000Z

    The primary objectives of this project included the development of an alternate domestic source of Paper-Polypropylene-Paper (PPP) laminate and the development of optimized designs for PPP-insulated pipe-type cable systems in the commercial voltage range. The development of a domestic source of PPP laminate was successfully completed. This laminate was utilized throughout the program for fabrication of full-size prototype cables submitted for laboratory qualification tests. Selected cables at rated voltages of 138, 230 and 345kV have been designed, fabricated and subjected to the series of qualification tests leading to full laboratory qualification. An optimized design of 2000 kcmil, 345kV cable insulated with 600 mils of domestic PPP laminate was fabricated and successfully passed all laboratory qualification tests. This cable design was subsequently installed at Waltz Mill to undergo the series of field tests leading to full commercial qualification.

  1. Pipeline system insulation: Thermal insulation and corrosion prevention. (Latest citations from the Rubber and Plastics Research Association database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-05-01T23:59:59.000Z

    The bibliography contains citations concerning thermal and corrosion insulation of pipeline systems used to transport liquids and gases. Topics include thermal aging of polyurethane used for foam heating pipes, extrusion film pipeline insulation materials and processes, flexible expanded nitrile rubber pipeline insulation with Class 1 fire rating, and underground fiberglass reinforced polyester insulated pipeline systems. Applications in solar heating systems; underground water, oil, and gas pipelines; interior hot and cold water lines under seawater; and chemical plant pipeline system insulation are included. (Contains 250 citations and includes a subject term index and title list.)

  2. A Case Study on In-situ Rejuvenation of Degraded Insulation on Industrial Piping in Hot Service 

    E-Print Network [OSTI]

    Williams, J.

    2015-01-01T23:59:59.000Z

    -situ Rejuvenation of Degraded Insulation on Industrial Piping In Hot Service John Williams VP, Marketing & Technical Services Aspen Aerogels, Inc. jwilliams@aerogel.com ESL-IE-15-06-35 Proceedings of the Thrity-Seventh Industrial Energy Technology Conference New... Orleans, LA. June 2-4, 2015 -2- Presentation Overview • The problem – The physics of wet insulation • The solution – The physics of flexible aerogel blanket material • An example – A case study • Summary and conclusions ESL-IE-15-06-35 Proceedings...

  3. The effects of insulation defects on the corrosion of sub-sea super duplex stainless steel process pipes

    SciTech Connect (OSTI)

    Francis, R.; Irwin, J.; Byrne, G.; Warburton, G. [Weir Materials Ltd., Manchester (United Kingdom)

    1995-10-01T23:59:59.000Z

    There is an increasing use of CRAs (corrosion resistant alloys) for subsea flowlines. These pipes carry corrosive fluids at high temperatures and pressures, and insulation is usually, applied to prevent excessive cooling of the process fluids. The present tests were undertaken to investigate the effect of insulation defects on the susceptibility to localized corrosion of a super duplex stainless steel at different internal temperatures. Four different commercial coating systems were tested, Neoprene, EPDM, Polyurethane and Polyurethane foam. The results show that pitting occurred at an average temperature of 55 C for neoprene and EPDM, and at lower temperatures for the other two coatings. The reasons for this are discussed, and the implications for service applications.

  4. Insulation spacer eliminates electric shorts between lines

    SciTech Connect (OSTI)

    Colaizzi, J.F.; Rockafellow, G.B.

    1983-03-01T23:59:59.000Z

    The design criteria incorporated into the pipeline insulating spacer were: spacer material selected must have a very large compressive and tensile strength in order to withstand the weight and stress resulting on the pipelines; provide the necessary abrasive resistance, dielectric strength, and will not decay underground; must not soften with heat when used around or near stream lines or will not cold flow under pressure; minimum length and circumference to reduce ''Shielding Effects'' from any cathodic protection system; and provide a material that incorporates a maximum strength at a minimum thickness. Explains that electric shorts are caused by 2 or more metallic structures in contact with each other. Notes that the insulating spacer's use has been expanded to provide electrical and physical insulation between carrier pipe and casing, supports for piping in compressing stations, and for pipelines that are suspended on bridges.

  5. Forced cooling of underground electric power transmission lines : design manual

    E-Print Network [OSTI]

    Brown, Jay A.

    1978-01-01T23:59:59.000Z

    The methodology utilized for the design of a forced-cooled pipe-type underground transmission system is presented. The material is divided into three major parts: (1) The Forced-cooled Pipe-Type Underground Transmission ...

  6. A WSRC-MS-g8-00318 Heat Transfer Model of Above and Underground Insulated Piping

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, AlgeriaQ1AResearchStudy

  7. axonometric piping diagrams: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  8. alloy seamless pipe: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  9. aggregated internet pipe: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  10. austenitic pipe welds: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  11. aluminum alloy pipe: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  12. austenitic pipe weldings: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  13. austenitic piping components: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  14. austenitic circumferential pipe: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  15. aluminum drill pipes: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  16. antisolar insulated roof: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  17. airborne sound insulation: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  18. affordable window insulation: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  19. antiferromagnetic mott insulator: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  20. atomic mott insulator: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  1. alumina fibrous insulation: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  2. Page 1 of 1 Pipe School

    E-Print Network [OSTI]

    Texas at Arlington, University of

    :15 Principles of Pipeline Design and Construction ­ Rigid and Flexible Pipes, Shah Rahman, Northwest Pipe, Texas 7:30 AM Registration 8:15 Welcome, Robert Carpenter, Underground Construction 8:30 Pipeline Route Company 11:15 Design and Construction Considerations for Ductile Iron Pipe, Ralph Carpenter, American Cast

  3. african-style kimberlite pipes: Topics by E-print Network

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

    A&M University - TxSpace Summary: PIPE INSULATION ECONOMIES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio ABSTRACT Pipe Insulation Economies is a computer pro gram...

  4. A WSRC-MS-g8-00318 Heat Transfer Model of Above and Underground...

    Office of Scientific and Technical Information (OSTI)

    of the surrounding air to prevent condensation. Most of city water, sewage and liquid waste are usually transferred through single or double underground pipe lines. The...

  5. An analytical and experimental investigation for an interstitial insulation technology 

    E-Print Network [OSTI]

    Kim, Dong Keun

    2009-05-15T23:59:59.000Z

    An insulation technique has been developed which contains a single or combination of materials to help minimize heat loss in actual industrial applications. For the petroleum industry, insulation for deep sea piping is one of the greatest challenges...

  6. An analytical and experimental investigation for an interstitial insulation technology

    E-Print Network [OSTI]

    Kim, Dong Keun

    2009-05-15T23:59:59.000Z

    An insulation technique has been developed which contains a single or combination of materials to help minimize heat loss in actual industrial applications. For the petroleum industry, insulation for deep sea piping is one of the greatest challenges...

  7. The 345 kV underground/underwater Long Island Sound cable project

    SciTech Connect (OSTI)

    Grzan, J.; Hahn, E.I. (New York Power Authority, White Plains, NY (United States)); Casalaina, R.V.; Kansog, J.O.C. (Ebasco Services Inc., Lyndhurst, NJ (United States))

    1993-07-01T23:59:59.000Z

    A high voltage underground/underwater cable system was installed to increase the transmission capacity from the mainland of New York to Long Island. In terms of weight and diameter, the self-contained, fluid-filled (SCFF) cable used for the underwater portion of the project is the largest underwater cable in the world. The use of high-pressure, fluid-filled (HPFF) pipe-type cable on the land portion represents the largest application of paper-polypropylene-paper (PPP) insulated cable in the United States. State-of-the-art technologies were implemented in the use of fiber optic cables for relay protection and SCADA/RTU, temperature monitoring and leak detection systems, SF[sub 6] gas-insulated substations, and underwater cable laying and embedment techniques. This paper discusses the design and installation of a 750 MVA, 43 km (26.6 mi), 345 kV underground/underwater electric transmission system installed by the New York Power Authority (NYPA).

  8. Underground Exploration

    E-Print Network [OSTI]

    Underground Exploration and Testing A Report to Congress and the Secretary of Energy Nuclear Waste . . . . . . . . . . . . . . . . . . . . . . . . 14 Use rail to support tunnel boring machine operation . . . . . . . . . 14 Excavate smaller diameter tunnels outside the portal-to-portal loop . 15 Use a tunnel boring machine to excavate the core test area

  9. Preliminary Notice of Violation, Pacific Underground Construction, Inc.- WEA-2009-02

    Broader source: Energy.gov [DOE]

    Issued to Pacific Underground Construction, Inc. related to a polyvinyl chloride (PVC) pipe explosion that occurred in Sector 30 of the linear accelerator facility at the SLAC National Accelerator Laboratory (SLAC).

  10. Method for making generally cylindrical underground openings

    DOE Patents [OSTI]

    Routh, J.W.

    1983-05-26T23:59:59.000Z

    A rapid, economical and safe method for making a generally cylindrical underground opening such as a shaft or a tunnel is described. A borehole is formed along the approximate center line of where it is desired to make the underground opening. The borehole is loaded with an explodable material and the explodable material is detonated. An enlarged cavity is formed by the explosive action of the detonated explodable material forcing outward and compacting the original walls of the borehole. The enlarged cavity may be increased in size by loading it with a second explodable material, and detonating the second explodable material. The process may be repeated as required until the desired underground opening is made. The explodable material used in the method may be free-flowing, and it may be contained in a pipe.

  11. Pipe overpack container for trasuranic waste storage and shipment

    DOE Patents [OSTI]

    Geinitz, Richard R. (Arvada, CO); Thorp, Donald T. (Broomfield, CO); Rivera, Michael A. (Boulder, CO)

    1999-01-01T23:59:59.000Z

    A Pipe Overpack Container for transuranic waste storage and shipment. The system consists of a vented pipe component which is positioned in a vented, insulated 55 gallon steel drum. Both the vented pipe component and the insulated drum are capable of being secured to prevent the contents from leaving the vessel. The vented pipe component is constructed of 1/4 inch stainless steel to provide radiation shielding. Thus, allowing shipment having high Americium-241 content. Several Pipe Overpack Containers are then positioned in a type B, Nuclear Regulatory Commission (NRC) approved, container. In the current embodiment, a TRUPACT-II container was employed and a maximum of fourteen Pipe Overpack Containers were placed in the TRUPACT-II. The combination received NRC approval for the shipment and storage of transuranic waste.

  12. Compact vacuum insulation embodiments

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1992-04-28T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point' or line' contacts with the metal wall sheets. In the case of monolithic spacers that form line' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included. 26 figs.

  13. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1993-01-01T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  14. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1993-01-05T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point'' or line'' contacts with the metal wall sheets. In the case of monolithic spacers that form line'' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point'' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  15. Compact vacuum insulation embodiments

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1992-01-01T23:59:59.000Z

    An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially "point" or "line" contacts with the metal wall sheets. In the case of monolithic spacers that form "line" contacts, two such spacers with the line contacts running perpendicular to each other form effectively "point" contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

  16. Aerogel Impregnated Polyurethane Piping and Duct Insulation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1 AAcceleratedDepartmentDepartment2AdvisoryAerodynamic

  17. Expansion Joint Concepts for High Temperature Insulation Systems

    E-Print Network [OSTI]

    Harrison, M. R.

    1980-01-01T23:59:59.000Z

    As high temperature steam and process piping expands with heat, joints begin to open between the insulation sections, resulting in increased energy loss and possible unsafe surface temperatures. Many different expansion joint designs are presently...

  18. Underground Storage Tank Regulations

    Broader source: Energy.gov [DOE]

    The Underground Storage Tank Regulations is relevant to all energy projects that will require the use and building of pipelines, underground storage of any sorts, and/or electrical equipment. The...

  19. Development of large-capacity gas-insulated transformer

    SciTech Connect (OSTI)

    Takahashi, E.; Tanaka, K. [Tokyo Electric Power Co., Ltd. (Japan)] [Tokyo Electric Power Co., Ltd. (Japan); Toda, K.; Ikeda, M.; Teranishi, T.; Inaba, M.; Yanari, T. [Toshiba Corp., Kawasaki (Japan)] [Toshiba Corp., Kawasaki (Japan)

    1996-04-01T23:59:59.000Z

    Concentrations of population and business activities result in high electricity demand in urban areas. This requires the construction of large-capacity underground substations. Oilless, non-flammable and non-explosive equipment is recommended for underground substations. Therefore, several types of large-capacity gas-insulated transformer have been developed. Because the gas forced cooling type was considered to be available up to approximately 60 MVA, all of these gas-insulated transformers are liquid cooled. But the liquid cooling type has the disadvantage of a complex structure for liquid cooling. For this reason, the authors have been studying the development of a simple design for a gas forced cooling, large-capacity gas-insulated transformer. This paper discusses research and development of cooling and insulation technology for a large-capacity gas-insulated transformer and the development of a 275 kV, 300 MVA gas-insulated transformer.

  20. Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry

    E-Print Network [OSTI]

    Brush, Adrian

    2012-01-01T23:59:59.000Z

    Piping insulation Geothermal cooling Minimizing heat sourceselectricity consumption (Xenergy, 1998). Geothermal cooling.Geothermal cooling takes advantage of underground

  1. Underground Injection Control (Louisiana)

    Broader source: Energy.gov [DOE]

    The Injection and Mining Division (IMD) has the responsibility of implementing two major federal environmental programs which were statutorily charged to the Office of Conservation: the Underground...

  2. Superconducting Topological Insulators

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

    Superconducting Topological Insulators Superconducting Topological Insulators Print Wednesday, 26 January 2011 00:00 Three-dimensional topological insulators (TIs), discovered...

  3. Dielectrometry measurements of moisture diffusion and temperature dynamics in oil impregnated paper insulated electric power cables

    E-Print Network [OSTI]

    Thomas, Zachary M. (Zachary Michael)

    2007-01-01T23:59:59.000Z

    Paper insulated lead covered (PILC) cables have played an important role in underground power distribution for a hundred years. Replacing aged PILC before failure is critical to managing power distribution. Three prominent ...

  4. Expensive Moisture/Insulation System Problems at Several Central Florida and South Texas Nursing Homes

    E-Print Network [OSTI]

    Lotz, W. A.

    2000-01-01T23:59:59.000Z

    where temperaturs reach 150° F. increases condensation due to inadequate details in mechanical insulation on ducts and pipes Vinyl wall covering is well known to be a disaster in this climate but interior decorators continue to specify it on various...

  5. Flexible ocean upwelling pipe

    DOE Patents [OSTI]

    Person, Abraham (Los Alamitos, CA)

    1980-01-01T23:59:59.000Z

    In an ocean thermal energy conversion facility, a cold water riser pipe is releasably supported at its upper end by the hull of the floating facility. The pipe is substantially vertical and has its lower end far below the hull above the ocean floor. The pipe is defined essentially entirely of a material which has a modulus of elasticity substantially less than that of steel, e.g., high density polyethylene, so that the pipe is flexible and compliant to rather than resistant to applied bending moments. The position of the lower end of the pipe relative to the hull is stabilized by a weight suspended below the lower end of the pipe on a flexible line. The pipe, apart from the weight, is positively buoyant. If support of the upper end of the pipe is released, the pipe sinks to the ocean floor, but is not damaged as the length of the line between the pipe and the weight is sufficient to allow the buoyant pipe to come to a stop within the line length after the weight contacts the ocean floor, and thereafter to float submerged above the ocean floor while moored to the ocean floor by the weight. The upper end of the pipe, while supported by the hull, communicates to a sump in the hull in which the water level is maintained below the ambient water level. The sump volume is sufficient to keep the pipe full during heaving of the hull, thereby preventing collapse of the pipe.

  6. Legislation pertaining to underground storage tanks

    SciTech Connect (OSTI)

    Goth, W. (Ventura County Environmental Health Division, CA (United States))

    1994-04-01T23:59:59.000Z

    Statutory authority in California for cleanup of contaminated soil and groundwater to protect water quality is the Porter Cologne Water Quality Control Act (Water Code 1967). Two state laws regulating underground hazardous material storage tanks, passed in late 1983 and effective on January 1, 1984, were AB-2013 (Cortese) and AB-1362 (Sher). Both require specific actions by the tank owners. AB-2013 requires all tank owners to register them with the state Water Resources Control Board (SWCB) and to pay a registration fee. AB-1362, Health and Safety Code Section 25280 et seq., requires tank owners to obtain a Permit to Operate, pay a fee to the local agency, and to install a leak detection system on all existing tanks. New tanks installation requires a Permit to install and provide provide secondary containment for the tank and piping. For tank closures, a permit must be obtained from the local agency to clean out the tank, remove it from the ground, and collect samples from beneath the tank for evidence of contamination. In 1988, state law AB-853 appropriated state funds to be combined with federal EPA money to allow SWRCB to initiate rapid cleanups of leaks from underground tank sites by contracting with local agencies to oversee assessment and cleanup of underground tank releases. Locally, in Ventura County, there are more than 400 leaking underground tank sites in which petroleum products have entered the groundwater. To date, no public water supplies have been contaminated; however, action in necessary to prevent any future contamination to our water supply. Over 250 leaking tank sites have completed cleanup.

  7. IEEE Transactions on Dielectrics and Electrical Insulation Vol. 19, No. 1; February 2012 321 1070-9878/12/$25.00 2012 IEEE

    E-Print Network [OSTI]

    Ritchie, Robert

    IEEE Transactions on Dielectrics and Electrical Insulation Vol. 19, No. 1; February 2012 321 1070-XLPE) that is relevant to water tree development in underground cable insulation. Finite element calculations were used to estimate the stresses developed in cable insulation by di-electrophoretic forces; these stresses

  8. Pipe-to-pipe impact program

    SciTech Connect (OSTI)

    Alzheimer, J.M.; Bampton, M.C.C.; Friley, J.R.; Simonen, F.A.

    1984-06-01T23:59:59.000Z

    This report documents the tests and analyses performed as part of the Pipe-to-Pipe Impact (PTPI) Program at the Pacific Northwest Laboratory. This work was performed to assist the NRC in making licensing decisions regarding pipe-to-pipe impact events following postulated breaks in high energy fluid system piping. The report scope encompasses work conducted from the program's start through the completion of the initial hot oil tests. The test equipment, procedures, and results are described, as are analytic studies of failure potential and data correlation. Because the PTPI Program is only partially completed, the total significance of the current test results cannot yet be accurately assessed. Therefore, although trends in the data are discussed, final conclusions and recommendations will be possible only after the completion of the program, which is scheduled to end in FY 1984.

  9. Underground Injection Control (West Virginia)

    Broader source: Energy.gov [DOE]

    This rule set forth criteria and standards for the requirements which apply to the State Underground Injection Control Program (U.I.C.). The UIC permit program regulates underground injections by...

  10. Topological insulators/Isolants topologiques An introduction to topological insulators

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Topological insulators/Isolants topologiques An introduction to topological insulators Introduction topology, the insulator is called a topological insulator. We introduce this notion of topological order sont finalement discutées. Keywords: topological insulator, topological band theory, quantum anomalous

  11. A Rapid Scanning Inspection Method for Insulated Ferromagnetic Tubing

    E-Print Network [OSTI]

    Marsh, G. M.; Milewits, M.

    1984-01-01T23:59:59.000Z

    Until the present there has been no effective way to rapidly scan thermally insulated refinery or process piping for corrosion or thin wall. Such defects, if left unattended, can lead to wasteful losses of time, energy and money. To date the most...

  12. Enhancement of Topological Insulators Surface Conduction

    E-Print Network [OSTI]

    Yu, Xinxin

    2012-01-01T23:59:59.000Z

    Enhancement of Topological Insulators Surface Conduction AEnhancement of Topological Insulators Surface Conduction byTopological Insulator

  13. Underground waste barrier structure

    DOE Patents [OSTI]

    Saha, Anuj J. (Hamburg, NY); Grant, David C. (Gibsonia, PA)

    1988-01-01T23:59:59.000Z

    Disclosed is an underground waste barrier structure that consists of waste material, a first container formed of activated carbonaceous material enclosing the waste material, a second container formed of zeolite enclosing the first container, and clay covering the second container. The underground waste barrier structure is constructed by forming a recessed area within the earth, lining the recessed area with a layer of clay, lining the clay with a layer of zeolite, lining the zeolite with a layer of activated carbonaceous material, placing the waste material within the lined recessed area, forming a ceiling over the waste material of a layer of activated carbonaceous material, a layer of zeolite, and a layer of clay, the layers in the ceiling cojoining with the respective layers forming the walls of the structure, and finally, covering the ceiling with earth.

  14. Underground and under scrutiny

    E-Print Network [OSTI]

    Lee, Leslie

    2014-01-01T23:59:59.000Z

    2 txH2O Summer 2014 Story by Leslie Lee The Frio River, located in the Texas Hill Country, is spring-fed and therefore affected by groundwater pumping. Photo from istock.com. Underground and under scrutiny A changing state increasingly... their geological features is more multifaceted. Consider that each aquifer in Texas has different geological and hydrological character- istics, and therefore varying recharge rates, water quality and regional needs, and the complexity heightens. From a legal...

  15. Piping inspection instrument carriage

    SciTech Connect (OSTI)

    Zollinger, W.T.; Treanor, R.C.

    1993-09-20T23:59:59.000Z

    This invention is comprised of a pipe inspection instrument carriage for use with a pipe crawler or other locomotion means for performing internal inspections of piping surfaces. The carriage has a front leg assembly, a rear leg assembly and a central support connecting the two assemblies and for mounting an instrument arm having inspection instruments. The instrument arm has means mounted distally thereon for axially aligning the inspection instrumentation and means for extending the inspection instruments radially outward to operably position the inspection instruments on the piping interior. Also, the carriage has means for rotating the central support and the front leg assembly with respect to the rear leg assembly so that the inspection instruments azimuthally scan the piping interior. The instrument carriage allows performance of all piping inspection operations with a minimum of moving parts, thus decreasing the likelihood of performance failure.

  16. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, Terry W. (Tracy, CA)

    1994-01-01T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed wh provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation.

  17. Multiple density layered insulator

    DOE Patents [OSTI]

    Alger, T.W.

    1994-09-06T23:59:59.000Z

    A multiple density layered insulator for use with a laser is disclosed which provides at least two different insulation materials for a laser discharge tube, where the two insulation materials have different thermoconductivities. The multiple layer insulation materials provide for improved thermoconductivity capability for improved laser operation. 4 figs.

  18. Calcium silicate insulation structure

    DOE Patents [OSTI]

    Kollie, Thomas G. (Oak Ridge, TN); Lauf, Robert J. (Oak Ridge, TN)

    1995-01-01T23:59:59.000Z

    An insulative structure including a powder-filled evacuated casing utilizes a quantity of finely divided synthetic calcium silicate having a relatively high surface area. The resultant structure-provides superior thermal insulating characteristics over a broad temperature range and is particularly well-suited as a panel for a refrigerator or freezer or the insulative barrier for a cooler or a insulated bottle.

  19. Abrasion resistant heat pipe

    DOE Patents [OSTI]

    Ernst, Donald M. (Leola, PA)

    1984-10-23T23:59:59.000Z

    A specially constructed heat pipe for use in fluidized bed combustors. Two distinct coatings are spray coated onto a heat pipe casing constructed of low thermal expansion metal, each coating serving a different purpose. The first coating forms aluminum oxide to prevent hydrogen permeation into the heat pipe casing, and the second coating contains stabilized zirconium oxide to provide abrasion resistance while not substantially affecting the heat transfer characteristics of the system.

  20. Internal pipe attachment mechanism

    DOE Patents [OSTI]

    Bast, R.M.; Chesnut, D.A.; Henning, C.D.; Lennon, J.P.; Pastrnak, J.W.; Smith, J.A.

    1994-12-13T23:59:59.000Z

    An attachment mechanism is described for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection. 6 figures.

  1. CRAD, Nuclear Facility Construction - Piping and Pipe Supports...

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

    March 29, 2012 Nuclear Facility Construction - Piping and Pipe Supports Inspection Criteria, Approach and Lines of Inquiry (HSS CRAD 45-52, Rev. 0) This Criteria Review and...

  2. Underground Storage Tanks (West Virginia)

    Broader source: Energy.gov [DOE]

    This rule governs the construction, installation, upgrading, use, maintenance, testing, and closure of underground storage tanks, including certification requirements for individuals who install,...

  3. Underground Storage Tanks (New Jersey)

    Broader source: Energy.gov [DOE]

    This chapter constitutes rules for all underground storage tank facilities- including registration, reporting, permitting, certification, financial responsibility and to protect human health and...

  4. Underground Storage Tank Program (Vermont)

    Broader source: Energy.gov [DOE]

    These rules are intended to protect public health and the environment by establishing standards for the design, installation, operation, maintenance, monitoring, and closure of underground storage...

  5. Underground Injection Control Regulations (Kansas)

    Broader source: Energy.gov [DOE]

    This article prohibits injection of hazardous or radioactive wastes into or above an underground source of drinking water, establishes permit conditions and states regulations for design,...

  6. Underground Injection Control Rule (Vermont)

    Broader source: Energy.gov [DOE]

    This rule regulates injection wells, including wells used by generators of hazardous or radioactive wastes, disposal wells within an underground source of drinking water, recovery of geothermal...

  7. Saving an Underground Reservoir 

    E-Print Network [OSTI]

    Wythe, Kathy

    2006-01-01T23:59:59.000Z

    significant part of the region?s agricultural economy. Though the area has few rivers and lakes, underneath it lies a supply of water that has provided groundwater for developing this economy. This underground water, the Ogallala Aquifer, is a finite... resource. The amount of water seeping back into the aquifer is much less than the water taken out, especially in the southern half of the aquifer, which spreads out from western Kansas to the High Plains of Texas. ?Water levels are declining 2 to 4...

  8. Underground coal gasification. Presentations

    SciTech Connect (OSTI)

    NONE

    2007-07-01T23:59:59.000Z

    The 8 presentations are: underground coal gasification (UCG) and the possibilities for carbon management (J. Friedmann); comparing the economics of UCG with surface gasification technologies (E. Redman); Eskom develops UCG technology project (C. Gross); development and future of UCG in the Asian region (L. Walker); economically developing vast deep Powder River Basin coals with UCG (S. Morzenti); effectively managing UCG environmental issues (E. Burton); demonstrating modelling complexity of environmental risk management; and UCG research at the University of Queensland, Australia (A.Y. Klimenko).

  9. Multinational underground nuclear parks

    SciTech Connect (OSTI)

    Myers, C.W. [Nuclear Engineering and Nonproliferation Division, Los Alamos National Laboratory, MS F650, Los Alamos, NM 87544 (United States); Giraud, K.M. [Wolf Creek Nuclear Operating Corporation, 1550 Oxen Lane NE, P.O. Box 411, Burlington, KS 66839-0411 (United States)

    2013-07-01T23:59:59.000Z

    Newcomer countries expected to develop new nuclear power programs by 2030 are being encouraged by the International Atomic Energy Agency to explore the use of shared facilities for spent fuel storage and geologic disposal. Multinational underground nuclear parks (M-UNPs) are an option for sharing such facilities. Newcomer countries with suitable bedrock conditions could volunteer to host M-UNPs. M-UNPs would include back-end fuel cycle facilities, in open or closed fuel cycle configurations, with sufficient capacity to enable M-UNP host countries to provide for-fee waste management services to partner countries, and to manage waste from the M-UNP power reactors. M-UNP potential advantages include: the option for decades of spent fuel storage; fuel-cycle policy flexibility; increased proliferation resistance; high margin of physical security against attack; and high margin of containment capability in the event of beyond-design-basis accidents, thereby reducing the risk of Fukushima-like radiological contamination of surface lands. A hypothetical M-UNP in crystalline rock with facilities for small modular reactors, spent fuel storage, reprocessing, and geologic disposal is described using a room-and-pillar reference-design cavern. Underground construction cost is judged tractable through use of modern excavation technology and careful site selection. (authors)

  10. Oregon Underground Injection Control Program Authorized Injection...

    Open Energy Info (EERE)

    Oregon Underground Injection Control Program Authorized Injection Systems Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Oregon Underground...

  11. WPCF Underground Injection Control Disposal Permit Evaluation...

    Open Energy Info (EERE)

    WPCF Underground Injection Control Disposal Permit Evaluation and Fact Sheet Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: WPCF Underground Injection...

  12. Underground Storage Tank Act (West Virginia)

    Broader source: Energy.gov [DOE]

    New underground storage tank construction standards must include at least the following requirements: (1) That an underground storage tank will prevent releases of regulated substances stored...

  13. Georgia Underground Storage Tank Act (Georgia)

    Broader source: Energy.gov [DOE]

    The Georgia Underground Storage Act (GUST) provides a comprehensive program to prevent, detect, and correct releases from underground storage tanks (“USTs”) of “regulated substances” other than...

  14. Preliminary Notice of Violation, Pacific Underground Construction...

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

    Pacific Underground Construction, Inc. - WEA-2009-02 Preliminary Notice of Violation, Pacific Underground Construction, Inc. - WEA-2009-02 April 7, 2009 Issued to Pacific...

  15. Flexible ultrasonic pipe inspection apparatus

    DOE Patents [OSTI]

    Jenkins, C.F.; Howard, B.D.

    1994-01-01T23:59:59.000Z

    Pipe crawlers, pipe inspection {open_quotes}rabbits{close_quotes} and similar vehicles are widely used for inspecting the interior surfaces of piping systems, storage tanks and process vessels for damaged or flawed structural features. This paper describes the design of a flexible, modular ultrasonic pipe inspection apparatus.

  16. Membranes Improve Insulation Efficiency

    E-Print Network [OSTI]

    Bullock, C. A.

    1986-01-01T23:59:59.000Z

    No Clear White Alum Temp Mem Mem Mem Foil FIGURE 7 Temperature Inside Room and Temperature Next to Top of Sheetrock Under Various insulation Configurations. It should be noted that after this test was completed, the fiber insulation was inspected...

  17. Insulating polymer concrete

    DOE Patents [OSTI]

    Schorr, H. Peter (Douglaston, NY); Fontana, Jack J. (Shirley, NY); Steinberg, Meyer (Melville, NY)

    1987-01-01T23:59:59.000Z

    A lightweight insulating polymer concrete formed from a lightweight closed cell aggregate and a water resistance polymeric binder.

  18. Aerogel-Based Insulation for Industrial Steam Distribution Systems

    SciTech Connect (OSTI)

    John Williams

    2011-03-30T23:59:59.000Z

    Thermal losses in industrial steam distribution systems account for 977 trillion Btu/year in the US, more than 1% of total domestic energy consumption. Aspen Aerogels worked with Department of Energy’s Industrial Technologies Program to specify, develop, scale-up, demonstrate, and deliver Pyrogel XT®, an aerogel-based pipe insulation, to market to reduce energy losses in industrial steam systems. The product developed has become Aspen’s best selling flexible aerogel blanket insulation and has led to over 60 new jobs. Additionally, this product has delivered more than ~0.7 TBTU of domestic energy savings to date, and could produce annual energy savings of 149 TBTU by 2030. Pyrogel XT’s commercial success has been driven by it’s 2-4X better thermal performance, improved durability, greater resistance to corrosion under insulation (CUI), and faster installation times than incumbent insulation materials.

  19. Topological Insulators & Superconductors

    E-Print Network [OSTI]

    Topological Insulators & Superconductors New Frontiers in Low-Dimensional Systems Program 3-5 November 2010 Jadwin Hall, Fourth Floor, Room 407 Topological Insulators and Superconductors have quickly Insulators and Superconductors will gather the world- leading researchers in this field to present recent

  20. Miniature pipe crawler tractor

    DOE Patents [OSTI]

    McKay, Mark D. (Idaho Falls, ID); Anderson, Matthew O. (Idaho Falls, ID); Ferrante, Todd A. (Westerville, OH); Willis, W. David (Idaho Falls, ID)

    2000-01-01T23:59:59.000Z

    A pipe crawler tractor may comprise a half tractor assembly having a first base drive wheel, a second base drive wheel, and a top drive wheel. The drive wheels are mounted in spaced-apart relation so that the top drive wheel is positioned between the first and second base drive wheels. The mounting arrangement is also such that the first and second base drive wheels contact the inside surface of the pipe at respective first and second positions and so that the top drive wheel contacts the inside surface of the pipe at a third position, the third position being substantially diametrically opposed to the first and second positions. A control system connected to the half tractor assembly controls the rotation of the first base wheel, the second base wheel, and the top drive wheel to move the half tractor assembly within the pipe.

  1. PIPES: A Portable Integrated Piping Engineering Interface System

    SciTech Connect (OSTI)

    Lee, N.L.; Kanga, D. [Bechtel Corp., Gaithersburg, MD (United States)

    1995-12-01T23:59:59.000Z

    This paper describes software developed by the authors to integrate and automate several piping engineering applications for high-volume production use in the power and petrochemical industries. The system utilizes piping component geometry from a CAD model together with associated engineering and material data. It produces input for an industry-standard piping isometric drawing program, Electronic Data Interchange information for pipe spool fabrication, and input for several,common pipe stress analysis codes. The piping isometric drawings feature stress analysis data points and material tabulations. The software is based on an open architecture and incorporates rule-driven Expert System technology to provide flexibility and ease of customization.

  2. Savings Project: Insulate Hot Water Pipes for Energy Savings | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebook Twitter Principal InvestigatorsSave Energy onof Energy Hot

  3. Savings Project: Insulate Hot Water Pipes for Energy Savings | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 <Department ofDepartment| Department ofSavingDepartment ofof

  4. Aerogel Impregnated Polyurethane Piping and Duct Insulation | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platform is alwaysISO 50001EnergyNewsletterAdvocate - Issue 55-July

  5. Water intrusion in underground structures

    E-Print Network [OSTI]

    Nazarchuk, Alex

    2008-01-01T23:59:59.000Z

    This thesis presents a study of the permissible groundwater infiltration rates in underground structures, the consequences of this leakage and the effectiveness of mitigation measures. Design guides and codes do not restrict, ...

  6. Opportunities in underground coal gasification

    SciTech Connect (OSTI)

    Bloomstran, M.A.; Davis, B.E.

    1984-06-01T23:59:59.000Z

    A review is presented of the results obtained on DOE-sponsored field tests of underground coal gasification in steeply-dipping beds at Rawlins, Wyoming. The coal gas composition, process parameters, and process economics are described. Steeply-dipping coal resources, which are not economically mineable using conventional coal mining methods, are identified and potential markets for underground coal gasification products are discussed. It is concluded that in-situ gasification in steeply-dipping deposits should be considered for commercialization.

  7. Underground caverns for hydrocarbon storage

    SciTech Connect (OSTI)

    Barron, T.F. [Exeter Energy Services, Houston, TX (United States)

    1998-12-31T23:59:59.000Z

    Large, international gas processing projects and growing LPG imports in developing countries are driving the need to store large quantities of hydrocarbon liquids. Even though underground storage is common in the US, many people outside the domestic industry are not familiar with the technology and the benefits underground storage can offer. The latter include lower construction and operating costs than surface storage, added safety, security and greater environmental acceptance.

  8. Underground pumped hydroelectric storage

    SciTech Connect (OSTI)

    Allen, R.D.; Doherty, T.J.; Kannberg, L.D.

    1984-07-01T23:59:59.000Z

    Underground pumped hydroelectric energy storage was conceived as a modification of surface pumped storage to eliminate dependence upon fortuitous topography, provide higher hydraulic heads, and reduce environmental concerns. A UPHS plant offers substantial savings in investment cost over coal-fired cycling plants and savings in system production costs over gas turbines. Potential location near load centers lowers transmission costs and line losses. Environmental impact is less than that for a coal-fired cycling plant. The inherent benefits include those of all pumped storage (i.e., rapid load response, emergency capacity, improvement in efficiency as pumps improve, and capacity for voltage regulation). A UPHS plant would be powered by either a coal-fired or nuclear baseload plant. The economic capacity of a UPHS plant would be in the range of 1000 to 3000 MW. This storage level is compatible with the load-leveling requirements of a greater metropolitan area with population of 1 million or more. The technical feasibility of UPHS depends upon excavation of a subterranean powerhouse cavern and reservoir caverns within a competent, impervious rock formation, and upon selection of reliable and efficient turbomachinery - pump-turbines and motor-generators - all remotely operable.

  9. Remotely operated pipe connector

    DOE Patents [OSTI]

    Josefiak, Leonard J. (Scotia, NY); Cramer, Charles E. (Guilderford, NY)

    1988-01-01T23:59:59.000Z

    An apparatus for remotely assembling and disassembling a Graylock type coctor between a pipe and a closure for the pipe includes a base and a receptacle on the base for the closure. The pipe is moved into position vertically above the closure by a suitable positioning device such that the flange on the pipe is immediately adjacent and concentric with the flange on the closure. A moving device then moves two semicircular collars from a position free of the closure to a position such that the interior cam groove of each collar contacts the two flanges. Finally, a tensioning device automatically allows remote tightening and loosening of a nut and bolt assembly on each side of the collar to cause a seal ring located between the flanges to be compressed and to seal the closure. Release of the pipe and the connector is accomplished in the reverse order. Preferably, the nut and bolt assembly includes an elongate shaft portion on which a removable sleeve is located.

  10. Heat pipes and use of heat pipes in furnace exhaust

    DOE Patents [OSTI]

    Polcyn, Adam D. (Pittsburgh, PA)

    2010-12-28T23:59:59.000Z

    An array of a plurality of heat pipe are mounted in spaced relationship to one another with the hot end of the heat pipes in a heated environment, e.g. the exhaust flue of a furnace, and the cold end outside the furnace. Heat conversion equipment is connected to the cold end of the heat pipes.

  11. Apparatus for inspecting piping

    DOE Patents [OSTI]

    Zollingger, W. Thor (Martinez, GA); Appel, D. Keith (Aiken, SC); Park, Larry R. (Raleigh, NC)

    1995-01-01T23:59:59.000Z

    An inspection rabbit for inspecting piping systems having severe bends therein. The rabbit consists of a flexible, modular body containing a miniaturized eddy current inspection probe, a self-contained power supply for proper operation of the rabbit, an outer surface that allows ease of movement through piping systems and means for transmitting data generated by the inspection device. The body is preferably made of flexible polyvinyl chloride (PVC) tubing or, alternatively, silicone rubber with a shrink wrapping of polytetrafluoroethylene (TEFLON.RTM.). The body is formed to contain the power supply, preferably a plurality of batteries, and a spool of communication wire that connects to a data processing computer external to the piping system.

  12. Apparatus for inspecting piping

    DOE Patents [OSTI]

    Zollingger, W.T.; Appel, D.K.; Park, L.R.

    1995-03-21T23:59:59.000Z

    An inspection rabbit is described for inspecting piping systems having severe bends therein. The rabbit consists of a flexible, modular body containing a miniaturized eddy current inspection probe, a self-contained power supply for proper operation of the rabbit, an outer surface that allows ease of movement through piping systems and means for transmitting data generated by the inspection device. The body is preferably made of flexible polyvinyl chloride (PVC) tubing or, alternatively, silicone rubber with a shrink wrapping of polytetrafluoroethylene (TEFLON{trademark}). The body is formed to contain the power supply, preferably a plurality of batteries, and a spool of communication wire that connects to a data processing computer external to the piping system. 6 figures.

  13. Underground Coal Thermal Treatment

    SciTech Connect (OSTI)

    P. Smith; M. Deo; E. Eddings; A. Sarofim; K. Gueishen; M. Hradisky; K. Kelly; P. Mandalaparty; H. Zhang

    2011-10-30T23:59:59.000Z

    The long-term objective of this work is to develop a transformational energy production technology by insitu thermal treatment of a coal seam for the production of substitute natural gas (SNG) while leaving much of the coalâ??s carbon in the ground. This process converts coal to a high-efficiency, low-GHG emitting gas fuel. It holds the potential of providing environmentally acceptable access to previously unusable coal resources. This topical report discusses the development of experimental capabilities, the collection of available data, and the development of simulation tools to obtain process thermo-chemical and geo-thermal parameters in preparation for the eventual demonstration in a coal seam. It also includes experimental and modeling studies of CO{sub 2} sequestration. Efforts focused on: â?¢ Constructing a suite of three different coal pyrolysis reactors. These reactors offer the ability to gather heat transfer, mass transfer and kinetic data during coal pyrolysis under conditions that mimic in situ conditions (Subtask 6.1). â?¢ Studying the operational parameters for various underground thermal treatment processes for oil shale and coal and completing a design matrix analysis for the underground coal thermal treatment (UCTT). This analysis yielded recommendations for terms of targeted coal rank, well orientation, rubblization, presence of oxygen, temperature, pressure, and heating sources (Subtask 6.2). â?¢ Developing capabilities for simulating UCTT, including modifying the geometry as well as the solution algorithm to achieve long simulation times in a rubblized coal bed by resolving the convective channels occurring in the representative domain (Subtask 6.3). â?¢ Studying the reactive behavior of carbon dioxide (CO{sub 2}) with limestone, sandstone, arkose (a more complex sandstone) and peridotite, including mineralogical changes and brine chemistry for the different initial rock compositions (Subtask 6.4). Arkose exhibited the highest tendency of participating in mineral reactions, which can be attributed to the geochemical complexity of its initial mineral assemblage. In experiments with limestone, continuous dissolution was observed with the release of CO{sub 2} gas, indicated by the increasing pressure in the reactor (formation of a gas chamber). This occurred due to the lack of any source of alkali to buffer the solution. Arkose has the geochemical complexity for permanent sequestration of CO{sub 2} as carbonates and is also relatively abundant. The effect of including NH{sub 3} in the injected gas stream was also investigated in this study. Precipitation of calcite and trace amounts of ammonium zeolites was observed. A batch geochemical model was developed using Geochemists Workbench (GWB). Degassing effect in the experiments was corrected using the sliding fugacity model in GWB. Experimental and simulation results were compared and a reasonable agreement between the two was observed.

  14. A Simple Holographic Insulator

    E-Print Network [OSTI]

    Eric Mefford; Gary T. Horowitz

    2014-07-11T23:59:59.000Z

    We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.

  15. Hydrogen Piping Experience in Chevron

    E-Print Network [OSTI]

    Hydrogen Piping Experience in Chevron Refining Ned Niccolls Materials Engineer Chevron Energy Technology Company Hydrogen Pipeline Working Group Workshop August 30-31, 2005 #12;Outline 2 Overall perspectives from long term use of hydrogen piping in refining. Piping specifications and practices. The (few

  16. Using Flexible Pipe (poly-pipe) with Surface Irrigation

    E-Print Network [OSTI]

    Peries, Xavier; Enciso, Juan

    2005-10-05T23:59:59.000Z

    include ? Tractor with furrower tool and unspooling bracket ? Poly-pipe rolls ? Pump or valve for connection ? Clamps, rubber straps, or duct tape ? Shovel ? PVC connectors (if more than one roll is used) ? Hole puncher with plugs Prior to poly.... Placing dirt on poly-pipe at 10-foot intervals. 5. Use clamps, rubber straps, string, or even duct tape (Figs. 4a and 4b) to connect the poly-pipe tightly to valves or supply-pipe fittings. Discharge-pipe diam- eter does not have to match...

  17. CALIFORNIA ENERGY Ceiling Insulation Report

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION Ceiling Insulation Report: Effectiveness of Lay-In Ceiling Insulation Effectiveness of Lay-In Insulation (product 5.2.6) TECHNICALREPORT October 2003 500-03-082-A-14 Gray Davis

  18. Underground Storage Tanks: New Fuels and Compatibility

    Broader source: Energy.gov [DOE]

    Breakout Session 1C—Fostering Technology Adoption I: Building the Market for Renewables with High Octane Fuels Underground Storage Tanks: New Fuels and Compatibility Ryan Haerer, Program Analyst, Alternative Fuels, Office of Underground Storage Tanks, Environmental Protection Agency

  19. Cooper-Pair Injection into Topological Insulators and Helical Wires

    E-Print Network [OSTI]

    Sato, Koji

    2013-01-01T23:59:59.000Z

    Topological Insulator . . . . . . . . . . . . . . . . . . . . . . . .phenomena : Topological Insulators and Superconductors. ”Colloquium : Topological insulators. ” Rev. Mod. Phys. , 82:

  20. Underground coal gasification: environmental update

    SciTech Connect (OSTI)

    Dockter, L.; Mcternan, E.M.

    1985-01-01T23:59:59.000Z

    To evaluate the potential for ground water contamination by underground coal gasification, extensive postburn groundwater monitoring programs are being continued at two test sites in Wyoming. An overview of the environmental concerns related to UCG and some results to date on the two field sites are presented in this report.

  1. TSUAHXETSUAHXE UndergroUnd tank

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    USer waterheatexchange waterheatexchange general exhaUSt lab exhaUSt warmairexhaUSt radiant panel heat radiant panel heat by night air, then stored underground. cold water travels through floors and ceiling panels to absorb heat rain and snowmelt in toilets saves water and reduces stormwater runoff photovoltaic panels turn solar

  2. High Temperature Superconducting Underground Cable

    SciTech Connect (OSTI)

    Farrell, Roger, A.

    2010-02-28T23:59:59.000Z

    The purpose of this Project was to design, build, install and demonstrate the technical feasibility of an underground high temperature superconducting (HTS) power cable installed between two utility substations. In the first phase two HTS cables, 320 m and 30 m in length, were constructed using 1st generation BSCCO wire. The two 34.5 kV, 800 Arms, 48 MVA sections were connected together using a superconducting joint in an underground vault. In the second phase the 30 m BSCCO cable was replaced by one constructed with 2nd generation YBCO wire. 2nd generation wire is needed for commercialization because of inherent cost and performance benefits. Primary objectives of the Project were to build and operate an HTS cable system which demonstrates significant progress towards commercial progress and addresses real world utility concerns such as installation, maintenance, reliability and compatibility with the existing grid. Four key technical areas addressed were the HTS cable and terminations (where the cable connects to the grid), cryogenic refrigeration system, underground cable-to-cable joint (needed for replacement of cable sections) and cost-effective 2nd generation HTS wire. This was the world’s first installation and operation of an HTS cable underground, between two utility substations as well as the first to demonstrate a cable-to-cable joint, remote monitoring system and 2nd generation HTS.

  3. Vacuum Bellows, Vacuum Piping, Cryogenic Break, and Copper Joint Failure Rate Estimates for ITER Design Use

    SciTech Connect (OSTI)

    L. C. Cadwallader

    2010-06-01T23:59:59.000Z

    The ITER international project design teams are working to produce an engineering design in preparation for construction of the International Thermonuclear Experimental Reactor (ITER) tokamak. During the course of this work, questions have arisen in regard to safety barriers and equipment reliability as important facets of system design. The vacuum system designers have asked several questions about the reliability of vacuum bellows and vacuum piping. The vessel design team has asked about the reliability of electrical breaks and copper-copper joints used in cryogenic piping. Research into operating experiences of similar equipment has been performed to determine representative failure rates for these components. The following chapters give the research results and the findings for vacuum system bellows, power plant stainless steel piping (amended to represent vacuum system piping), cryogenic system electrical insulating breaks, and copper joints.

  4. Pipe inspection using the pipe crawler. Innovative technology summary report

    SciTech Connect (OSTI)

    NONE

    1999-05-01T23:59:59.000Z

    The US Department of Energy (DOE) continually seeks safer and more cost-effective remediation technologies for use in the decontamination and decommissioning (D and D) of nuclear facilities. In several of the buildings at the Fernald Site, there is piping that was used to transport process materials. As the demolition of these buildings occur, disposal of this piping has become a costly issue. Currently, all process piping is cut into ten-foot or less sections, the ends of the piping are wrapped and taped to prevent the release of any potential contaminants into the air, and the piping is placed in roll off boxes for eventual repackaging and shipment to the Nevada Test Site (NTS) for disposal. Alternatives that allow for the onsite disposal of process piping are greatly desired due to the potential for dramatic savings in current offsite disposal costs. No means is currently employed to allow for the adequate inspection of the interior of piping, and consequently, process piping has been assumed to be internally contaminated and thus routinely disposed of at NTS. The BTX-II system incorporates a high-resolution micro color camera with lightheads, cabling, a monitor, and a video recorder. The complete probe is capable of inspecting pipes with an internal diameter (ID) as small as 1.4 inches. By using readily interchangeable lightheads, the same system is capable of inspecting piping up to 24 inches in ID. The original development of the BTX system was for inspection of boiler tubes and small diameter pipes for build-up, pitting, and corrosion. However, the system is well suited for inspecting the interior of most types of piping and other small, confined areas. The report describes the technology, its performance, uses, cost, regulatory and policy issues, and lessons learned.

  5. Thermal Insulation Systems

    E-Print Network [OSTI]

    Stanley, T. F.

    1982-01-01T23:59:59.000Z

    Thermal insulation systems are receiving a high degree of attention in view of increasing energy cost. Industrial, commercial and residential energy users are all well aware of energy cost increases and great emphasis is being directed to energy...

  6. Cooper Pairs in Insulators?!

    ScienceCinema (OSTI)

    James Valles

    2010-01-08T23:59:59.000Z

    Nearly 50 years elapsed between the discovery of superconductivity and the emergence of the microscopic theory describing this zero resistance state. The explanation required a novel phase of matter in which conduction electrons joined in weakly bound pairs and condensed with other pairs into a single quantum state. Surprisingly, this Cooper pair formation has also been invoked to account for recently uncovered high-resistance or insulating phases of matter. To address this possibility, we have used nanotechnology to create an insulating system that we can probe directly for Cooper pairs. I will present the evidence that Cooper pairs exist and dominate the electrical transport in these insulators and I will discuss how these findings provide new insight into superconductor to insulator quantum phase transitions. 

  7. Insulator for laser housing

    DOE Patents [OSTI]

    Duncan, David B. (Auburn, CA)

    1992-01-01T23:59:59.000Z

    The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member.

  8. Rocky mountain 1: Underground coal-gasification test, Hanna, Wyoming. Summary report, Volume 1. Appendix. Final report

    SciTech Connect (OSTI)

    Vardaman, M.H.

    1989-02-01T23:59:59.000Z

    The Rocky Mountain 1 underground coal gasification test was conducted near Hanna, Wyoming during the period January 1986 through March 1988. These appendixes include information supporting Volume I as well as complete data for certain aspects of the gasification phase. These aspects include daily operations reports, raw and corrected process data, thermocouple and Time Domain Reflectometer results, and monitoring well pressure and level data obtained during the gasification phase. Piping and instrumentation diagrams and supplemental informations on the data acquisition system are included.

  9. Electoral Competition, Political Uncertainty and Policy Insulation

    E-Print Network [OSTI]

    de Figueiredo, Rui J. P. Jr.

    2001-01-01T23:59:59.000Z

    Uncertainty and Policy Insulation Horn, Murray. 1995. TheUncertainty and Policy Insulation United States Congress.UNCERTAINTY AND POLICY INSULATION Rui J. P. de Figueiredo,

  10. GRI highlights underground gasification effort

    SciTech Connect (OSTI)

    Not Available

    1987-03-01T23:59:59.000Z

    A consortium headed by the Gas Research Institute is supporting major underground coal gasification tests to take place over the next two years at a site near Hanna, Wyoming. About 200 tons of coal will be gasified per day. Directional drilling will be used to form the horizontal gasification pathways linking the injection and production wells. The objectives of the program include a further evaluation of the controlled-retracting-injection-point technology. The technology involves the use of a device that is capable of igniting successive coal zones as it is retracted through a borehole in the coal seam. Comparable data will also be obtained during the test in sections where a linked-vertical-well concept will be used instead of the retracting-injection method. The linked-vertical-well concept, which has been used in most coal gasification tests, involves drilling a series of vertical wells into the coal seam gasification pathway for the ignition of successive coal zones. A parallel program will be conducted to evaluate environmental control technology applicable to underground coal gasification and to define the process requirements that must be satisfied to meet environmental quality standards. The results of these combined programs will provide the process and environmental data bases necessary to assess the economic potential of underground coal gasification from various US locations for a variety of end-product applications.

  11. Large-bore pipe decontamination

    SciTech Connect (OSTI)

    Ebadian, M.A.

    1998-01-01T23:59:59.000Z

    The decontamination and decommissioning (D and D) of 1200 buildings within the US Department of Energy-Office of Environmental Management (DOE-EM) Complex will require the disposition of miles of pipe. The disposition of large-bore pipe, in particular, presents difficulties in the area of decontamination and characterization. The pipe is potentially contaminated internally as well as externally. This situation requires a system capable of decontaminating and characterizing both the inside and outside of the pipe. Current decontamination and characterization systems are not designed for application to this geometry, making the direct disposal of piping systems necessary in many cases. The pipe often creates voids in the disposal cell, which requires the pipe to be cut in half or filled with a grout material. These methods are labor intensive and costly to perform on large volumes of pipe. Direct disposal does not take advantage of recycling, which could provide monetary dividends. To facilitate the decontamination and characterization of large-bore piping and thereby reduce the volume of piping required for disposal, a detailed analysis will be conducted to document the pipe remediation problem set; determine potential technologies to solve this remediation problem set; design and laboratory test potential decontamination and characterization technologies; fabricate a prototype system; provide a cost-benefit analysis of the proposed system; and transfer the technology to industry. This report summarizes the activities performed during fiscal year 1997 and describes the planned activities for fiscal year 1998. Accomplishments for FY97 include the development of the applicable and relevant and appropriate regulations, the screening of decontamination and characterization technologies, and the selection and initial design of the decontamination system.

  12. Review: The Great Lead Water Pipe Disaster

    E-Print Network [OSTI]

    Karalus, Daniel E

    2010-01-01T23:59:59.000Z

    Review: The Great Lead Water Pipe Disaster By WernerUSA Troesken, Werner. The Great Lead Water Pipe Disaster.paper. Alkaline paper. Lead poisoning usually conjures

  13. Vapor spill pipe monitor

    DOE Patents [OSTI]

    Bianchini, G.M.; McRae, T.G.

    1983-06-23T23:59:59.000Z

    The invention is a method and apparatus for continually monitoring the composition of liquefied natural gas flowing from a spill pipe during a spill test by continually removing a sample of the LNG by means of a probe, gasifying the LNG in the probe, and sending the vaporized LNG to a remote ir gas detector for analysis. The probe comprises three spaced concentric tubes surrounded by a water jacket which communicates with a flow channel defined between the inner and middle, and middle and outer tubes. The inner tube is connected to a pump for providing suction, and the probe is positioned in the LNG flow below the spill pipe with the tip oriented partly downward so that LNG is continuously drawn into the inner tube through a small orifice. The probe is made of a high thermal conductivity metal. Hot water is flowed through the water jacket and through the flow channel between the three tubes to provide the necessary heat transfer to flash vaporize the LNG passing through the inner channel of the probe. The gasified LNG is transported through a connected hose or tubing extending from the probe to a remote ir sensor which measures the gas composition.

  14. Flexible ultrasonic pipe inspection apparatus

    DOE Patents [OSTI]

    Jenkins, Charles F. (Aiken, SC); Howard, Boyd D. (Augusta, GA)

    1998-01-01T23:59:59.000Z

    A flexible, modular ultrasonic pipe inspection apparatus, comprising a flexible, hollow shaft that carries a plurality of modules, including at least one rotatable ultrasonic transducer, a motor/gear unit, and a position/signal encoder. The modules are connected by flexible knuckle joints that allow each module of the apparatus to change its relative orientation with respect to a neighboring module, while the shaft protects electrical wiring from kinking or buckling while the apparatus moves around a tight corner. The apparatus is moved through a pipe by any suitable means, including a tether or drawstring attached to the nose or tail, differential hydraulic pressure, or a pipe pig. The rotational speed of the ultrasonic transducer and the forward velocity of the apparatus are coordinated so that the beam sweeps out the entire interior surface of the pipe, enabling the operator to accurately assess the condition of the pipe wall and determine whether or not leak-prone corrosion damage is present.

  15. Underground storage of oil and gas

    SciTech Connect (OSTI)

    Bergman, S.M.

    1984-09-01T23:59:59.000Z

    The environmental and security advantages of underground storage of oil and gas are well documented. In many cases, underground storage methods such as storage in salt domes, abandoned mines, and mined rock caverns have proven to be cost effective when compared to storage in steel tanks constructed for that purpose on the surface. In good rock conditions, underground storage of large quantities of hydrocarbon products is normally less costly--up to 50-70% of the surface alternative. Under fair or weak rock conditions, economic comparisons between surface tanks and underground caverns must be evaluated on a case to case basis. The key to successful underground storage is enactment of a realistic geotechnical approach. In addition to construction cost, storage of petroleum products underground has operational advantages over similar storage above ground. These advantages include lower maintenance costs, less fire hazards, less land requirements, and a more even storage temperature.

  16. Thermal insulated glazing unit

    DOE Patents [OSTI]

    Selkowitz, S.E.; Arasteh, D.K.; Hartmann, J.L.

    1988-04-05T23:59:59.000Z

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas. 2 figs.

  17. Thermal insulated glazing unit

    SciTech Connect (OSTI)

    Selkowitz, Stephen E. (Piedmont, CA); Arasteh, Dariush K. (Oakland, CA); Hartmann, John L. (Seattle, WA)

    1991-01-01T23:59:59.000Z

    An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas.

  18. Oregon Underground Injection Control Registration Application...

    Open Energy Info (EERE)

    Oregon Underground Injection Control Registration Application Fees (DEQ Form UIC 1003-GIC) Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: Oregon...

  19. Washington Environmental Permit Handbook - Underground Injection...

    Open Energy Info (EERE)

    Washington Environmental Permit Handbook - Underground Injection Control Registration webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site:...

  20. Oregon Underground Injection Control Registration Geothermal...

    Open Energy Info (EERE)

    Oregon Underground Injection Control Registration Geothermal Heating Systems (DEQ Form UICGEO-1004(f)) Jump to: navigation, search OpenEI Reference LibraryAdd to library Form:...

  1. ,"Tennessee Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  2. ,"Missouri Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  3. ,"Montana Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  4. ,"Iowa Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  5. ,"Pennsylvania Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  6. ,"Oregon Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  7. ,"Colorado Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  8. ,"Indiana Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  9. ,"Wyoming Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  10. ,"Kansas Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  11. ,"Maryland Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  12. ,"Alaska Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  13. ,"Nebraska Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  14. ,"Mississippi Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  15. ,"Utah Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  16. ,"Illinois Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  17. ,"Oklahoma Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  18. ,"Arkansas Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  19. ,"Virginia Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  20. ,"California Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  1. ,"Texas Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  2. ,"Kentucky Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  3. ,"Ohio Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  4. ,"Michigan Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  5. ,"Minnesota Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  6. ,"Washington Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  7. ,"Alabama Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  8. ,"Louisiana Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  9. Pipelines and Underground Gas Storage (Iowa)

    Broader source: Energy.gov [DOE]

    These rules apply to intrastate transport of natural gas and other substances via pipeline, as well as underground gas storage facilities. The construction and operation of such infrastructure...

  10. Wells, Borings, and Underground Uses (Minnesota)

    Broader source: Energy.gov [DOE]

    This section regulates wells, borings, and underground storage with regards to protecting groundwater resources. The Commissioner of the Department of Health has jurisdiction, and can grant permits...

  11. Notes on topological insulators

    E-Print Network [OSTI]

    Dan Li; Ralph M. Kaufmann; Birgit Wehefritz-Kaufmann

    2015-01-13T23:59:59.000Z

    This paper is a survey of the $\\mathbb{Z}/\\mathbb{Z}_2$-valued invariants of topological insulators in condensed matter physics. The $\\mathbb{Z}$-valued topological invariant was originally called the TKNN invariant in physics, which has been fully understood as the first Chern number. The $\\mathbb{Z}_2$ invariant is more mysterious, we will devote our efforts to reviewing its equivalent descriptions from different point of views. We emphasize that both invariants are realizations of the Atiyah--Singer index theorem in condensed matter physics. The topological K-theory also plays an important role in the classification of topological insulators with different symmetries.

  12. Topological Mott Insulators

    SciTech Connect (OSTI)

    Raghu, S.

    2010-03-02T23:59:59.000Z

    We consider extended Hubbard models with repulsive interactions on a honeycomb lattice, and the transitions from the semimetal to Mott insulating phases at half-filling. Because of the frustrated nature of the second-neighbor interactions, topological Mott phases displaying the quantum Hall and the quantum spin Hall effects are found for spinless and spin fermion models, respectively. The mean-field phase diagram is presented and the fluctuations are treated within the random phase approximation. Renormalization group analysis shows that these states can be favored over the topologically trivial Mott insulating states.

  13. Insulation | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732on ArmedManufacturing | Department ofInsulation Insulation

  14. Contaminant trap for gas-insulated apparatus

    DOE Patents [OSTI]

    Adcock, J.L.; Pace, M.O.; Christophorou, L.G.

    1984-01-01T23:59:59.000Z

    A resinous body is placed in gas-insulated electrical apparatus to remove particulate material from the insulating gas.

  15. Peg supported thermal insulation panel

    DOE Patents [OSTI]

    Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

    1985-01-01T23:59:59.000Z

    A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprising high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure.

  16. Peg supported thermal insulation panel

    DOE Patents [OSTI]

    Nowobilski, J.J.; Owens, W.J.

    1985-04-30T23:59:59.000Z

    A thermal insulation panel which is lightweight, load bearing, accommodates thermal stress, and has excellent high temperature insulation capability comprises high performance insulation between thin metal walls supported by high density, high strength glass pegs made in compliance with specified conditions of time, temperature and pressure. 2 figs.

  17. Physics World Archive Topological insulators

    E-Print Network [OSTI]

    Johannesson, Henrik

    Physics World Archive Topological insulators Charles Kane, Joel Moore From Physics World February, how- ever, now uncovered a new electronic phase called a topological insulator. Putting the name; this "spin current" is a milestone in the realization of practical "spintronics". Topological insulators have

  18. Topological Insulator Nanowires and Nanoribbons

    E-Print Network [OSTI]

    Cui, Yi

    Topological Insulator Nanowires and Nanoribbons Desheng Kong, Jason C. Randel,,| Hailin Peng,, Judy material show that it is a three-dimensional topological insulator possessing conductive surface states topological insulator materials have a large surface-to-volume ratio that can manifest the conductive surface

  19. Page 1 of 1 Pipe School

    E-Print Network [OSTI]

    Huang, Haiying

    ­ Rigid and Flexible Pipes: A comparison of rigid (concrete, clay, etc.) and flexible (steel, HDPE, PVC own) 1:00 PM Design and Construction Considerations for PVC Pipe: Everything you need to know about PVC pipe and its applications. John Houle, P.E., Uni-Bell PVC Pipe Association 1:45 Design

  20. Holographic fractional topological insulators

    SciTech Connect (OSTI)

    Hoyos, Carlos; Jensen, Kristan; Karch, Andreas [Department of Physics, University of Washington, Seattle, Washington 98195-1560 (United States)

    2010-10-15T23:59:59.000Z

    We give a holographic realization of the recently proposed low-energy effective action describing a fractional topological insulator. In particular we verify that the surface of this hypothetical material supports a fractional quantum Hall current corresponding to half that of a Laughlin state.

  1. Underground storage tank management plan

    SciTech Connect (OSTI)

    NONE

    1994-09-01T23:59:59.000Z

    The Underground Storage Tank (UST) Management Program at the Oak Ridge Y-12 Plant was established to locate UST systems in operation at the facility, to ensure that all operating UST systems are free of leaks, and to establish a program for the removal of unnecessary UST systems and upgrade of UST systems that continue to be needed. The program implements an integrated approach to the management of UST systems, with each system evaluated against the same requirements and regulations. A common approach is employed, in accordance with Tennessee Department of Environment and Conservation (TDEC) regulations and guidance, when corrective action is mandated. This Management Plan outlines the compliance issues that must be addressed by the UST Management Program, reviews the current UST inventory and compliance approach, and presents the status and planned activities associated with each UST system. The UST Management Plan provides guidance for implementing TDEC regulations and guidelines for petroleum UST systems. (There are no underground radioactive waste UST systems located at Y-12.) The plan is divided into four major sections: (1) regulatory requirements, (2) implementation requirements, (3) Y-12 Plant UST Program inventory sites, and (4) UST waste management practices. These sections describe in detail the applicable regulatory drivers, the UST sites addressed under the Management Program, and the procedures and guidance used for compliance with applicable regulations.

  2. UNDERGROUND MUONS IN SUPER-KAMIOKANDE

    E-Print Network [OSTI]

    Tokyo, University of

    HE 4.1.23 UNDERGROUND MUONS IN SUPER-KAMIOKANDE The Super-Kamiokande Collaboration, presented by J The largest underground neutrino observatory, Super-Kamiokande, located near Kamioka, Japan has been for muons ver- sus zenith angle in Super-Kamiokande. The lled region is for muons with more than 1.7 Ge

  3. Carbon Allocation in Underground Storage Organs

    E-Print Network [OSTI]

    Carbon Allocation in Underground Storage Organs Studies on Accumulation of Starch, Sugars and Oil Cover: Starch granules in cells of fresh potato tuber visualised by iodine staining. #12;Carbon By increasing knowledge of carbon allocation in underground storage organs and using the knowledge to improve

  4. DOE - Office of Legacy Management -- Hoe Creek Underground Coal...

    Office of Legacy Management (LM)

    Hoe Creek Underground Coal Gasification Site - 045 FUSRAP Considered Sites Site: Hoe Creek Underground Coal Gasification Site (045) Designated Name: Alternate Name: Location:...

  5. Emissions and Durability of Underground Mining Diesel Particulate...

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

    Durability of Underground Mining Diesel Particulate Filter Applications Emissions and Durability of Underground Mining Diesel Particulate Filter Applications Presentation given at...

  6. EA-1943: Long Baseline Neutrino Facility/Deep Underground Neutrino...

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

    DUNE) at Fermilab, Batavia, Illinois and the Sanford Underground Research Facility, Lead, South Dakota EA-1943: Long Baseline Neutrino FacilityDeep Underground Neutrino...

  7. Heat Pipes: An Industrial Application

    E-Print Network [OSTI]

    Murray, F.

    1984-01-01T23:59:59.000Z

    This paper reviews the basics of heat pipe exchangers. Included are how they are constructed, how they operate, where they have application, and various aspects of evaluating a potential application. After discussing the technical aspects of heat...

  8. Heat Pipes: An Industrial Application 

    E-Print Network [OSTI]

    Murray, F.

    1984-01-01T23:59:59.000Z

    This paper reviews the basics of heat pipe exchangers. Included are how they are constructed, how they operate, where they have application, and various aspects of evaluating a potential application. After discussing the technical aspects of heat...

  9. Jamaican red clay tobacco pipes

    E-Print Network [OSTI]

    Heidtke, Kenan Paul

    1992-01-01T23:59:59.000Z

    JAMAICAN RED CLAY TOBACCO PIPES A Thesis by KENAN PAUL HEIDTKE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF ARTS December 1992 Major Subject...: Anthropology JAMAICAN RED CLAY TOBACCO PIPES A Thesis by KENAN PAUL HEIDTKE Approved as to style and content by: Dorm L. Hamilton (Chair of Committee) Frederick H. van Doorninck, J (Member) enry C. Schmidt (Member) Vaughn M. Bryant (Head...

  10. Underground Storage Tank Regulations for the Certification of Persons Who Install, Alter, and Remove Underground Storage Tanks (Mississippi)

    Broader source: Energy.gov [DOE]

    The Underground Storage Tank Regulations for the Certification of Persons who Install, Alter, and Remove Underground Storage Tanks applies to any project that will install, alter or remove...

  11. 2D Dirac Materials: From Graphene to Topological Insulators

    E-Print Network [OSTI]

    Teweldebrhan, Desalegne Bekuretsion

    2011-01-01T23:59:59.000Z

    2D Topological Insulators. . . . . . . . . . . . . . . . .structure for a topological insulator. The Dirac cone fallsband structure for topological insulators. With the Fermi

  12. Toxic hazards of underground excavation

    SciTech Connect (OSTI)

    Smith, R.; Chitnis, V.; Damasian, M.; Lemm, M.; Popplesdorf, N.; Ryan, T.; Saban, C.; Cohen, J.; Smith, C.; Ciminesi, F.

    1982-09-01T23:59:59.000Z

    Inadvertent intrusion into natural or man-made toxic or hazardous material deposits as a consequence of activities such as mining, excavation or tunnelling has resulted in numerous deaths and injuries in this country. This study is a preliminary investigation to identify and document instances of such fatal or injurious intrusion. An objective is to provide useful insights and information related to potential hazards due to future intrusion into underground radioactive-waste-disposal facilities. The methodology used in this study includes literature review and correspondence with appropriate government agencies and organizations. Key categories of intrusion hazards are asphyxiation, methane, hydrogen sulfide, silica and asbestos, naturally occurring radionuclides, and various mine or waste dump related hazards.

  13. Pipe-type cable ampacities in the presence of harmonics

    SciTech Connect (OSTI)

    Palmer, J.A.; Degeneff, R.C. (Rensselaer Polytechnic Inst., Troy, NY (United States)); McKernan, T.M.; Halleran, T.M. (Consolidated Edison Co. of NY, Inc., New York, NY (United States))

    1993-10-01T23:59:59.000Z

    This paper explores the effect of harmonics on HPFF pipe-type transmission cable ampacity. Industry currently calculates the current carrying capacity of underground cable based on the assumption of a purely sinusoidal 60k Hz. current. However, increasing levels of harmonics on power systems have raised concern about their effect on cable ampacities. The issue has already been addressed for distribution cables. This paper begins with a discussion of Neher and McGrath's classic equations and some recent revisions, and develops a closed form composite equations accurately reflecting the effect of harmonics. The effect of frequency on the loss ratio is shown and supported by comparison with measured data at 60 Hz. and a finite element analysis at a number of harmonic frequencies. The effect of specific harmonic scenarios is shown in light of the IEEE standard on harmonics. The results are used to develop a derating factor to compensate for current harmonics on transmission systems.

  14. Gas filled panel insulation

    DOE Patents [OSTI]

    Griffith, B.T.; Arasteh, D.K.; Selkowitz, S.E.

    1993-12-14T23:59:59.000Z

    A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation. 18 figures.

  15. Magnetic refrigeration apparatus with heat pipes

    DOE Patents [OSTI]

    Barclay, J.A.; Prenger, F.C. Jr.

    1985-10-25T23:59:59.000Z

    A magnetic refrigerator operating in the 4 to 20 K range utilizes heat pipes to transfer heat to and from the magnetic material at the appropriate points during the material's movement. In one embodiment circular disks of magnetic material can be interleaved with the ends of the heat pipes. In another embodiment a mass of magnetic material reciprocatingly moves between the end of the heat pipe or pipes that transmits heat from the object of cooling to the magnetic material and the end of the heat pipe or pipes that transmits heat from the magnetic material to a heat sink.

  16. Magnetic refrigeration apparatus with heat pipes

    DOE Patents [OSTI]

    Barclay, John A. (Los Alamos, NM); Prenger, Jr., F. Coyne (Madison, WI)

    1987-01-01T23:59:59.000Z

    A magnetic refrigerator operating in the 4 to 20 K range utilizes heat pipes to transfer heat to and from the magnetic material at the appropriate points during the material's movement. In one embodiment circular disks of magnetic material can be interleaved with the ends of the heat pipes. In another embodiment a mass of magnetic material reciprocatingly moves between the end of the heat pipe of pipes that transmits heat from the object of cooling to the magnetic material and the end of the heat pipe or pipes that transmits heat from the magnetic material to a heat sink.

  17. Underground cosmic-ray experiment EMMA T. Enqvista

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    Authority ­ STUK, Helsinki, Finland d Centre for Underground Physics at Pyh¨asalmi (CUPP), University

  18. Pipe crawler with extendable legs

    DOE Patents [OSTI]

    Zollinger, W.T.

    1992-06-16T23:59:59.000Z

    A pipe crawler for moving through a pipe in inchworm fashion having front and rear leg assemblies separated by air cylinders to increase and decrease the spacing between assemblies. Each leg of the four legs of an assembly is moved between a wall-engaging, extended position and a retracted position by a separate air cylinder. The air cylinders of the leg assemblies are preferably arranged in pairs of oppositely directed cylinders with no pair lying in the same axial plane as another pair. Therefore, the cylinders can be as long as a leg assembly is wide and the crawler can crawl through sections of pipes where the diameter is twice that of other sections. The crawler carries a valving system, a manifold to distribute air supplied by a single umbilical air hose to the various air cylinders in a sequence controlled electrically by a controller. The crawler also utilizes a rolling mechanism, casters in this case, to reduce friction between the crawler and pipe wall thereby further extending the range of the pipe crawler. 8 figs.

  19. Pipe crawler with extendable legs

    DOE Patents [OSTI]

    Zollinger, William T. (3927 Almon Dr., Martinez, GA 30907)

    1992-01-01T23:59:59.000Z

    A pipe crawler for moving through a pipe in inchworm fashion having front and rear leg assemblies separated by air cylinders to increase and decrease the spacing between assemblies. Each leg of the four legs of an assembly is moved between a wall-engaging, extended position and a retracted position by a separate air cylinder. The air cylinders of the leg assemblies are preferably arranged in pairs of oppositely directed cylinders with no pair lying in the same axial plane as another pair. Therefore, the cylinders can be as long a leg assembly is wide and the crawler can crawl through sections of pipes where the diameter is twice that of other sections. The crawler carries a valving system, a manifold to distribute air supplied by a single umbilical air hose to the various air cylinders in a sequence controlled electrically by a controller. The crawler also utilizes a rolling mechanism, casters in this case, to reduce friction between the crawler and pipe wall thereby further extending the range of the pipe crawler.

  20. Thermal insulations using vacuum panels

    DOE Patents [OSTI]

    Glicksman, Leon R. (Lynnfield, MA); Burke, Melissa S. (Pittsburgh, PA)

    1991-07-16T23:59:59.000Z

    Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

  1. Hydrogen in semiconductors and insulators

    E-Print Network [OSTI]

    Van de Walle, Chris G.

    2007-01-01T23:59:59.000Z

    level in two different semiconductors, illustrating the06-01999R1 Hydrogen in semiconductors and insulators SpecialA. oxide materials; A. semiconductors; C. electronic

  2. Underground Injection Control Fee Schedule (West Virginia)

    Broader source: Energy.gov [DOE]

    This rule establishes schedules of permit fees for state under?ground injection control permits issued by the Chief of the Office of Water Resources. This rule applies to any person who is...

  3. Underground Gas Storage Reservoirs (West Virginia)

    Broader source: Energy.gov [DOE]

    Lays out guidelines for the conditions under which coal mining operations must notify state authorities of intentions to mine where underground gas is stored as well as map and data requirements,...

  4. Underground Storage of Natural Gas (Kansas)

    Broader source: Energy.gov [DOE]

    Any natural gas public utility may appropriate for its use for the underground storage of natural gas any subsurface stratum or formation in any land which the commission shall have found to be...

  5. Prince George's County Underground Storage Act (Maryland)

    Broader source: Energy.gov [DOE]

    A gas storage company may invoke eminent domain to acquire property in Prince George's County for underground gas storage purposes. The area acquired must lie not less than 800 feet below the...

  6. Arkansas Underground Injection Control Code (Arkansas)

    Broader source: Energy.gov [DOE]

    The Arkansas Underground Injection Control Code (UIC code) is adopted pursuant to the provisions of the Arkansas Water and Air Pollution Control Act (Arkansas Code Annotated 8-5-11). It is the...

  7. Development of 500-kV AC cable employing laminar insulation of other than conventional cellulosic paper. Final report

    SciTech Connect (OSTI)

    Bahder, G.; Eager, G.S. Jr.; Walker, J.J.; Dima, A.F.

    1980-09-01T23:59:59.000Z

    The results of an investigation to develop a 500 kV ac laminar dielectric power cable and joint having insulation with lower losses than conventional cellulosic paper insulation are presented. Background information is presented on proposed low-loss synthetic and composite synthetic/cellulosic paper insulations. From these studies, fibrous polypropylene paper tape and cellulosic paper-polypropylene film-cellulosic paper composite paper (PPP) were chosen. Extensive testing of hand-wrapped cable models fabricated with each type of tape served to eliminate the fibrous polypropylene paper tape from further consideration. Cable model tests indicate that the PPP tape is satisfactory for insulation in 500 kV ac cable, and that oil impregnants now used in conventional cellulosic paper insulated cables are unsuitable, but that silicone oil with an additive is satisfactory for PPP tapes. Laboratory data indicate that it may be necessary with the PPP tapes to use a significantly lower viscosity impregnating oil which has a greater tendency to drain from pipe-type cables than conventional oil. This may require a modification of the moisture seal. Four final pipe-type cables having a conventional moisture seal were manufactured for possible future field testing. The dielectric loss of the final cables is one-fifth that of conventional cellulosic paper insulated cables. The estimated installed cost per MVA-mile of the PPP insulated cable, neglecting losses, is higher than cellulosic insulated cables impregnated with conventional mineral oil. However, the capacitance of the cable insulated with PPP tape is 25% lower than conventional cable, and therefore, the reactance necessary to compensate for the cable charging current is significantly reduced.

  8. Underground infrastructure damage for a Chicago scenario

    SciTech Connect (OSTI)

    Dey, Thomas N [Los Alamos National Laboratory; Bos, Rabdall J [Los Alamos National Laboratory

    2011-01-25T23:59:59.000Z

    Estimating effects due to an urban IND (improvised nuclear device) on underground structures and underground utilities is a challenging task. Nuclear effects tests performed at the Nevada Test Site (NTS) during the era of nuclear weapons testing provides much information on how underground military structures respond. Transferring this knowledge to answer questions about the urban civilian environment is needed to help plan responses to IND scenarios. Explosions just above the ground surface can only couple a small fraction of the blast energy into an underground shock. The various forms of nuclear radiation have limited penetration into the ground. While the shock transmitted into the ground carries only a small fraction of the blast energy, peak stresses are generally higher and peak ground displacement is lower than in the air blast. While underground military structures are often designed to resist stresses substantially higher than due to the overlying rocks and soils (overburden), civilian structures such as subways and tunnels would generally only need to resist overburden conditions with a suitable safety factor. Just as we expect the buildings themselves to channel and shield air blast above ground, basements and other underground openings as well as changes of geology will channel and shield the underground shock wave. While a weaker shock is expected in an urban environment, small displacements on very close-by faults, and more likely, soils being displaced past building foundations where utility lines enter could readily damaged or disable these services. Immediately near an explosion, the blast can 'liquefy' a saturated soil creating a quicksand-like condition for a period of time. We extrapolate the nuclear effects experience to a Chicago-based scenario. We consider the TARP (Tunnel and Reservoir Project) and subway system and the underground lifeline (electric, gas, water, etc) system and provide guidance for planning this scenario.

  9. Depleted argon from underground sources

    SciTech Connect (OSTI)

    Back, H.O.; /Princeton U.; Alton, A.; /Augustana U. Coll.; Calaprice, F.; Galbiati, C.; Goretti, A.; /Princeton U.; Kendziora, C.; /Fermilab; Loer, B.; /Princeton U.; Montanari, D.; /Fermilab; Mosteiro, P.; /Princeton U.; Pordes, S.; /Fermilab

    2011-09-01T23:59:59.000Z

    Argon is a powerful scintillator and an excellent medium for detection of ionization. Its high discrimination power against minimum ionization tracks, in favor of selection of nuclear recoils, makes it an attractive medium for direct detection of WIMP dark matter. However, cosmogenic {sup 39}Ar contamination in atmospheric argon limits the size of liquid argon dark matter detectors due to pile-up. The cosmic ray shielding by the earth means that Argon from deep underground is depleted in {sup 39}Ar. In Cortez Colorado a CO{sub 2} well has been discovered to contain approximately 500ppm of argon as a contamination in the CO{sub 2}. In order to produce argon for dark matter detectors we first concentrate the argon locally to 3-5% in an Ar, N{sub 2}, and He mixture, from the CO{sub 2} through chromatographic gas separation. The N{sub 2} and He will be removed by continuous cryogenic distillation in the Cryogenic Distillation Column recently built at Fermilab. In this talk we will discuss the entire extraction and purification process; with emphasis on the recent commissioning and initial performance of the cryogenic distillation column purification.

  10. Insulation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The Energy Materials Center at CornellOf NSECAtomInsulation

  11. Insulation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of BlytheDepartment ofEnergy1EnergyEnergy InsulateandInsulation

  12. Geographic Resource Map of Frozen Pipe Probabilities

    Broader source: Energy.gov [DOE]

    Presentation slide details a resource map showing the probability of frozen pipes in the geographic United States.

  13. Electrical wire insulation and electromagnetic coil

    DOE Patents [OSTI]

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

    1984-01-01T23:59:59.000Z

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

  14. Superconducting ``metals'' and ``insulators'' Smitha Vishveshwara

    E-Print Network [OSTI]

    Superconducting ``metals'' and ``insulators'' Smitha Vishveshwara Department of Physics, University to the distinction between normal metals and insulators: the superconducting ``metal'' with delocalized qua- siparticle excitations and the superconducting ``insulator'' with localized quasiparticles. We describe

  15. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, D.K.; Potter, T.F.

    1992-10-27T23:59:59.000Z

    Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases there between are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and various laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels. 35 figs.

  16. Compact vacuum insulation

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Potter, Thomas F. (Denver, CO)

    1992-01-01T23:59:59.000Z

    Improved compact insulation panel is provided which is comprised of two adjacent metal sheets spaced close together with a plurality of spherical, or other discretely shaped, glass or ceramic beads optimally positioned between the sheets to provide support and maintain the spacing between the metal sheets when the gases therebetween are evacuated to form a vacuum. These spherical glass beads provide the maximum support while minimizing thermal conductance. In its preferred embodiment; these two metal sheets are textured with ribs or concave protrusions in conjunction with the glass beads to maximize the structural integrity of the panels while increasing the spacing between beads, thereby reducing the number of beads and the number of thermal conduction paths. Glass or porcelain-enameled liners in combination with the glass spacers and metal sidewalls effectively decrease thermal conductivity, and variious laminates, including wood, porcelain-enameled metal, and others effectively increase the strength and insulation capabilities of the panels. Also, a metal web is provided to hold the spacers in place, and strategic grooves are shown to accommodate expansion and contraction or shaping of the panels.

  17. Evaluation of Trenchless Installation Technology for Radioactive Wastewater Piping Applications

    SciTech Connect (OSTI)

    Robinson, Sharon M [ORNL; Jubin, Robert Thomas [ORNL; Patton, Bradley D [ORNL; Sullivan, Nicholas M [ORNL; Bugbee, Kathy P [ORNL

    2009-09-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) Office of Environmental Management (EM) cleanup mission at Oak Ridge National Laboratory (ORNL) includes dispositioning facilities, contaminated legacy materials/waste, and contamination sources and remediation of soil under facilities, groundwater, and surface water to support final Records of Decision (RODs). The Integrated Facilities Disposition Project (IFDP) is a roughly $15B project for completion of the EM mission at Oak Ridge, with a project duration of up to 35 years. The IFDP Mission Need Statement - Critical Decision-0 (CD-0) - was approved by DOE in July 2007, and the IFDP Alternative Selection and Cost Range - Critical Decision-1 (CD-1) - was approved in November 2008. The IFDP scope includes reconfiguration of waste collection and treatment systems as needed to complete the IFDP remediation and decontamination and decommissioning (D&D) missions in a safe and cost-effective manner while maintaining compliance with all governing regulations and bodies and preserving the support of continuing operations at ORNL. A step in the CD-1 approval process included an external technical review (ETR) of technical approaches proposed in the CD-1 document related to the facility reconfiguration for the ORNL radioactive waste and liquid low-level waste management systems. The ETR team recommended that the IFDP team consider the use of trenchless technologies for installing pipelines underground in and around contaminated sites as part of the alternatives evaluations required in support of the CD-2 process. The team specifically recommended evaluating trenchless technologies for installing new pipes in existing underground pipelines as an alternative to conventional open trench installation methods. Potential benefits could include reduction in project costs, less costly underground piping, fewer disruptions of ongoing and surface activities, and lower risk for workers. While trenchless technologies have been used extensively in the sanitary sewer and natural gas pipeline industries, they have been used far less in contaminated environments. Although trenchless technologies have been used at ORNL in limited applications to install new potable water and gas lines, the technologies have not been used in radioactive applications. This study evaluates the technical risks, benefits, and economics for installing gravity drained and pressurized piping using trenchless technologies compared to conventional installation methods for radioactive applications under ORNL geological conditions. A range of trenchless installation technologies was reviewed for this report for general applicability for replacing existing contaminated piping and/or installing new pipelines in potentially contaminated areas. Installation methods that were determined to have potential for use in typical ORNL contaminated environments were then evaluated in more detail for three specific ORNL applications. Each feasible alternative was evaluated against the baseline conventional open trench installation method using weighted criteria in the areas of environment, safety, and health (ES&H); project cost and schedule; and technical operability. The formulation of alternatives for evaluation, the development of selection criteria, and the scoring of alternatives were performed by ORNL staff with input from vendors and consultants. A description of the evaluation methodology and the evaluation results are documented in the following sections of this report.

  18. "Flexible aerogel as a superior thermal insulation for high temperature superconductor cable applications"

    SciTech Connect (OSTI)

    White, Shannon O. [Aspen Aerogel, Inc.; Demko, Jonathan A [ORNL; Tomich, A. [Aspen Aerogel, Inc.

    2010-01-01T23:59:59.000Z

    High temperature superconducting (HTS) cables are an advanced technology that can both strengthen and improve the national electrical distribution infrastructure. HTS cables require sufficient cooling to overcome inherent low temperature heat loading. Heat loads are minimized by the use of cryogenic envelopes or cryostats. Cryostats require improvement in efficiency, reliability, and cost reduction to meet the demanding needs of HTS conductors (1G and 2G wires). Aspen Aerogels has developed a compression resistant aerogel thermal insulation package to replace compression sensitive multi-layer insulation (MLI), the incumbent thermal insulation, in flexible cryostats for HTS cables. Oak Ridge National Laboratory tested a prototype aerogel package in a lab-scale pipe apparatus to measure the rate of heat invasion. The lab-scale pipe test results of the aerogel solution will be presented and directly compared to MLI. A compatibility assessment of the aerogel material with HTS system components will also be presented. The aerogel thermal insulation solution presented will meet the demanding needs of HTS cables.

  19. Flipping Photoelectron Spins in Topological Insulators

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

    Flipping Photoelectron Spins in Topological Insulators Flipping Photoelectron Spins in Topological Insulators Print Tuesday, 23 April 2013 10:00 Inherently strange crystalline...

  20. Flipping Photoelectron Spins in Topological Insulators

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

    Flipping Photoelectron Spins in Topological Insulators Print Inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science....

  1. Geosphere in underground coal gasification

    SciTech Connect (OSTI)

    Daly, D.J.; Groenewold, G.H.; Schmit, C.R.; Evans, J.M.

    1988-07-01T23:59:59.000Z

    The feasibility of underground coal gasification (UCG), the in-situ conversion of coal to natural gas, has been demonstrated through 28 tests in the US alone, mainly in low-rank coals, since the early 1970s. Further, UCG is currently entering the commercial phase in the US with a planned facility in Wyoming for the production of ammonia-urea from UCG-generated natural gas. Although the UCG process both affects and is affected by the natural setting, the majority of the test efforts have historically been focused on characterizing those aspects of the natural setting with the potential to affect the burn. With the advent of environmental legislation, this focus broadened to include the potential impacts of the process on the environment (e.g., subsidence, degradation of ground water quality). Experience to date has resulted in the growing recognition that consideration of the geosphere is fundamental to the design of efficient, economical, and environmentally acceptable UCG facilities. The ongoing RM-1 test program near Hanna, Wyoming, sponsored by the US Department of Energy and an industry consortium led by the Gas Research Institute, reflects this growing awareness through a multidisciplinary research effort, involving geoscientists and engineers, which includes (1) detailed geological site characterization, (2) geotechnical, hydrogeological, and geochemical characterization and predictive modeling, and (3) a strategy for ground water protection. Continued progress toward commercialization of the UCG process requires the integration of geological and process-test information in order to identify and address the potentially adverse environmental ramifications of the process, while identifying and using site characteristics that have the potential to benefit the process and minimize adverse impacts.

  2. Multiple layer insulation cover

    DOE Patents [OSTI]

    Farrell, James J. (Livingston Manor, NY); Donohoe, Anthony J. (Ovid, NY)

    1981-11-03T23:59:59.000Z

    A multiple layer insulation cover for preventing heat loss in, for example, a greenhouse, is disclosed. The cover is comprised of spaced layers of thin foil covered fabric separated from each other by air spaces. The spacing is accomplished by the inflation of spaced air bladders which are integrally formed in the cover and to which the layers of the cover are secured. The bladders are inflated after the cover has been deployed in its intended use to separate the layers of the foil material. The sizes of the material layers are selected to compensate for sagging across the width of the cover so that the desired spacing is uniformly maintained when the cover has been deployed. The bladders are deflated as the cover is stored thereby expediting the storage process and reducing the amount of storage space required.

  3. Density Matrix Topological Insulators

    E-Print Network [OSTI]

    A. Rivas; O. Viyuela; M. A. Martin-Delgado

    2013-10-31T23:59:59.000Z

    Thermal noise can destroy topological insulators (TI). However we demonstrate how TIs can be made stable in dissipative systems. To that aim, we introduce the notion of band Liouvillian as the dissipative counterpart of band Hamiltonian, and show a method to evaluate the topological order of its steady state. This is based on a generalization of the Chern number valid for general mixed states (referred to as density matrix Chern value), which witnesses topological order in a system coupled to external noise. Additionally, we study its relation with the electrical conductivity at finite temperature, which is not a topological property. Nonetheless, the density matrix Chern value represents the part of the conductivity which is topological due to the presence of quantum mixed edge states at finite temperature. To make our formalism concrete, we apply these concepts to the two-dimensional Haldane model in the presence of thermal dissipation, but our results hold for arbitrary dimensions and density matrices.

  4. STATE OF CALIFORNIA INSULATION STAGE CHECKLIST

    E-Print Network [OSTI]

    STATE OF CALIFORNIA INSULATION STAGE CHECKLIST CEC-CF-6R-ENV-22 (Revised 05/12) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage be insulated in a manner that resists thermal bridging of the assembly separating conditioned from

  5. Chromatin insulators: lessons from the fly

    E-Print Network [OSTI]

    Corces, Victor G.

    Chromatin insulators: lessons from the fly B.V.Gurudatta and Victor G.Corces Abstract Chromatin insulators are DNA^protein complexes with broad functions in nuclear biology. Drosophila has at least five different types of insulators; recent results suggest that these different insulators share some components

  6. Solar Decathlon Technology Spotlight: Structural Insulated Panels

    Broader source: Energy.gov [DOE]

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs.

  7. Tunable Dirac Fermion Dynamics in Topological Insulators

    E-Print Network [OSTI]

    Wang, Wei Hua

    Tunable Dirac Fermion Dynamics in Topological Insulators Chaoyu Chen1 , Zhuojin Xie1 , Ya Feng1, Beijing 100190, China. Three-dimensional topological insulators are characterized by insulating bulk state topological insulators. We have directly revealed signatures of the electron-phonon coupling and found

  8. Underground coal gasification product quality parameters

    SciTech Connect (OSTI)

    Bruggink, P.R.; Davis, B.E.

    1981-01-01T23:59:59.000Z

    A simplified model is described which will indicate the economic value of the raw product gas from an experimental underground coal gasification test on a real-time basis in order to aid in the optimization of the process during the course of the test. The model relates the properties of the product gas and the injection gas to the cost of producing each of five potential commercial products. This model was utilized to evaluate data during the Gulf-DOE underground coal gasification test at Rawlins, Wyoming in the fall of 1981. 6 refs.

  9. Potential underground risks associated with CAES.

    SciTech Connect (OSTI)

    Kirk, Matthew F.; Webb, Stephen Walter; Broome, Scott Thomas; Pfeifle, Thomas W.; Grubelich, Mark Charles; Bauer, Stephen J.

    2010-10-01T23:59:59.000Z

    CAES in geologic media has been proposed to help 'firm' renewable energy sources (wind and solar) by providing a means to store energy when excess energy was available, and to provide an energy source during non-productive renewable energy time periods. Such a storage media may experience hourly (perhaps small) pressure swings. Salt caverns represent the only proven underground storage used for CAES, but not in a mode where renewable energy sources are supported. Reservoirs, both depleted natural gas and aquifers represent other potential underground storage vessels for CAES, however, neither has yet to be demonstrated as a functional/operational storage media for CAES.

  10. High Temperature Variable Conductance Heat Pipes for Radioisotope Stirling Systems

    SciTech Connect (OSTI)

    Tarau, Calin; Walker, Kara L.; Anderson, William G. [Advanced Cooling Technologies, Inc. 1046 New Holland Ave. Lancaster, PA 17601 (United States)

    2009-03-16T23:59:59.000Z

    In a Stirling radioisotope system, heat must continually be removed from the GPHS modules, to maintain the GPHS modules and surrounding insulation at acceptable temperatures. Normally, the Stirling converter provides this cooling. If the Stirling engine stops in the current system, the insulation is designed to spoil, preventing damage to the GPHS, but also ending the mission. An alkali-metal Variable Conductance Heat Pipe (VCHP) is under development to allow multiple stops and restarts of the Stirling engine. The status of the ongoing effort in developing this technology is presented in this paper. An earlier, preliminary design had a radiator outside the Advanced Stirling Radioisotope Generator (ASRG) casing, used NaK as the working fluid, and had the reservoir located on the cold side adapter flange. The revised design has an internal radiator inside the casing, with the reservoir embedded inside the insulation. A large set of advantages are offered by this new design. In addition to reducing the overall size and mass of the VCHP, simplicity, compactness and easiness in assembling the VCHP with the ASRG are significantly enhanced. Also, the permanently elevated temperatures of the entire VCHP allows the change of the working fluid from a binary compound (NaK) to single compound (Na). The latter, by its properties, allows higher performance and further mass reduction of the system. Preliminary design and analysis shows an acceptable peak temperature of the ASRG case of 140 deg. C while the heat losses caused by the addition of the VCHP are 1.8 W.

  11. Underground Natural Gas Storage Wells in Bedded Salt (Kansas)

    Broader source: Energy.gov [DOE]

    These regulations apply to natural gas underground storage and associated brine ponds, and includes the permit application for each new underground storage tank near surface water bodies and springs.

  12. Visit to the Deep Underground Science and Engineering Laboratory

    ScienceCinema (OSTI)

    None

    2010-01-08T23:59:59.000Z

    U.S. Department of Energy scientists and administrators join members of the National Science Foundation and South Dakotas Sanford Underground Laboratory for the deepest journey yet to the proposed site of the Deep Underground Science and Engineering Laboratory (DUSEL).

  13. Accident Investigation of the February 5, 2014, Underground Salt...

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

    5, 2014, Underground Salt Haul Truck Fire at the Waste Isolation Pilot Plant, Carlsbad NM Accident Investigation of the February 5, 2014, Underground Salt Haul Truck Fire at the...

  14. Correlation effects on topological insulator

    E-Print Network [OSTI]

    Xiong-Jun Liu; Yang Liu; Xin Liu

    2010-11-24T23:59:59.000Z

    The strong correlation effects on topological insulator are studied in a two-sublattice system with an onsite single-particle energy difference $\\Delta$ between two sublattices. At $\\Delta=0$, increasing the onsite interaction strength $U$ drives the transition from the quantum spin Hall insulating state to the non-topological antiferromagnetic Mott-insulating (AFMI) state. When $\\Delta$ is larger than a certain value, a topologically trivial band insulator or AFMI at small values of $U$ may change into a quantum anomalous Hall state with antiferromagnetic ordering at intermediate values of $U$. Further increasing $U$ drives the system back into the topologically trivial state of AFMI. The corresponding phenomena is observable in the solid state and cold atom systems. We also propose a scheme to realize and detect these effects in cold atom systems.

  15. Measure Guideline: Basement Insulation Basics

    SciTech Connect (OSTI)

    Aldrich, R.; Mantha, P.; Puttagunta, S.

    2012-10-01T23:59:59.000Z

    This guideline is intended to describe good practices for insulating basements in new and existing homes, and is intended to be a practical resources for building contractors, designers, and also to homeowners.

  16. Pipe and hose decontamination apparatus

    SciTech Connect (OSTI)

    Fowler, D.E.

    1985-03-12T23:59:59.000Z

    A pipe and hose decontamination apparatus is disclosed using freshly filtered high pressure Freon solvent in an integrated closed loop to remove radioactive particles or other contaminants from items having a long cylindrical geometry such as hoses, pipes, cables and the like. The pipe and hose decontamination apparatus comprises a chamber capable of accomodating a long cylindrical work piece to be decontaminated. The chamber has a downward sloped bottom draining to a solvent holding tank. An entrance zone, a cleaning zone and an exit drying zone are defined within the chamber by removable partitions having slotted rubber gaskets in their centers. The entrance and exit drying zones contain a horizontally mounted cylindrical housing which supports in combination a plurality of slotted rubber gaskets and circular brushes to initiate mechanical decontamination. Solvent is delivered at high pressure to a spray ring located in the cleaning zone having a plurality of nozzles surrounding the work piece. The solvent drains into a solvent holding tank located below the nozzles and means are provided for circulating the solvent to and from a solvent cleaning, distilling and filter unit.

  17. EMMA a new underground cosmic-ray experiment T. Enqvista

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    and Nuclear Safety Authority ­ STUK, Helsinki, Finland d Centre for Underground Physics at Pyh¨asalmi (CUPP

  18. Fully synthetic taped insulation cables

    DOE Patents [OSTI]

    Forsyth, Eric B. (Brookhaven, NY); Muller, Albert C. (Center Moriches, NY)

    1984-01-01T23:59:59.000Z

    A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

  19. Variable pressure thermal insulating jacket

    DOE Patents [OSTI]

    Nelson, P.A.; Malecha, R.F.; Chilenskas, A.A.

    1994-09-20T23:59:59.000Z

    A device for controlled insulation of a thermal device is disclosed. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communication with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket. 10 figs.

  20. Qualification Requirements of Guided Ultrasonic Waves for Inspection of Piping in Light Water Reactors

    SciTech Connect (OSTI)

    Meyer, Ryan M.; Ramuhalli, Pradeep; Doctor, Steven R.; Bond, Leonard J.

    2013-08-01T23:59:59.000Z

    Guided ultrasonic waves (GUW) are being increasingly used for both NDT and monitoring of piping. GUW offers advantages over many conventional NDE technologies due to the ability to inspect large volumes of piping components without significant removal of thermal insulation or protective layers. In addition, regions rendered inaccessible to more conventional NDE technologies may be more accessible using GUW techniques. For these reasons, utilities are increasingly considering the use of GUWs for performing the inspection of piping components in nuclear power plants. GUW is a rapidly evolving technology and its usage for inspection of nuclear power plant components requires refinement and qualification to ensure it is able to achieve consistent and acceptable levels of performance. This paper will discuss potential requirements for qualification of GUW techniques for the inspection of piping components in light water reactors (LWRs). The Nuclear Regulatory Commission has adopted ASME Boiler and Pressure Vessel Code requirements in Sections V, III, and XI for nondestructive examination methods, fabrication inspections, and pre-service and in-service inspections. A Section V working group has been formed to place the methodology of GUW into the ASME Boiler and Pressure Vessel Code but no requirements for technique, equipment, or personnel exist in the Code at this time.

  1. Design and Field Testing of an Autonomous Underground Tramming System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , the repetitive "load-haul-dump" cycle is well suited to automation. In this case, a vehicle called a load underground mining vehicle. Described is the development of a fast, re- liable, and robust "autotramming in underground mining operations by robotiz- ing some of the functions of underground vehicles. For example

  2. Appendix E: Underground Storage Annual Site Environmental Report

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix E: Underground Storage Tank Data #12;Annual Site Environmental Report Appendix E: Underground Storage Tank Data E-3 Table E.1. Underground storage tanks (USTs) at the Y-12 Plant Location/95) NA Closure approval 3/95 (6/96) 9714 2334-U 1987 In use 6,000 Gasoline Full Site check NA NA

  3. Appendix C: Underground Storage Annual Site Environmental Report

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix C: Underground Storage Tank Data #12;#12;Annual Site Environmental Report Appendix C: Underground Storage Tank Data C-3 Table C.1. Underground storage tanks (USTs) at the Y-12 Plant Location/95) NA Closure approval 3/95 (6/96) 9714 2334-U 1987 In use 6,000 Gasoline Full Site check NA Case closed

  4. Appendix C: Underground Storage Annual Site Environmental Report

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix C: Underground Storage Tank Data #12;#12;Annual Site Environmental Report Appendix C: Underground Storage Tank Data C-3 Table C.1. Underground storage tanks (USTs) at the Y-12 Complex Location/95) NA Closure approval 3/95 (6/96) 9714 2334-U 1987 In use 6,000 Gasoline Full Site check NA Case closed

  5. The Public Perceptions of Underground Coal Gasification (UCG)

    E-Print Network [OSTI]

    Watson, Andrew

    The Public Perceptions of Underground Coal Gasification (UCG): A Pilot Study Simon Shackley #12;The Public Perceptions of Underground Coal Gasification (UCG): A Pilot Study Dr Simon Shackley of Underground Coal Gasification (UCG) in the United Kingdom. The objectives were to identify the main dangers

  6. Underground coal gasification simulation. Final report

    SciTech Connect (OSTI)

    Gunn, R.D.

    1984-07-01T23:59:59.000Z

    The underground coal gasification (UCG) process - both forward gasification and reverse combustion linkage - was mathematically modeled. The models were validated with field and laboratory data. They were then used to explain some important UCG phenomena that had not been predictable with other methods. Some views on the UCG technology status are also presented. 3 references, 25 figures, 10 tables.

  7. Alkali Metal Heat Pipe Life Issues

    SciTech Connect (OSTI)

    Reid, Robert S. [Marshall Space Flight Center, National Aeronautics and Space Administration, Huntsville, Alabama, 35812 (United States)

    2004-07-01T23:59:59.000Z

    One approach to fission power system design uses alkali metal heat pipes for the core primary heat-transfer system. Heat pipes may also be used as radiator elements or auxiliary thermal control elements. This synopsis characterizes long-life core heat pipes. References are included where information that is more detailed can be found. Specifics shown here are for demonstration purposes and do not necessarily reflect current Nasa Project Prometheus point designs. (author)

  8. Downhole pipe selection for acoustic telemetry

    DOE Patents [OSTI]

    Drumheller, D.S.

    1995-12-19T23:59:59.000Z

    A system is described for transmitting signals along a downhole string including a plurality of serially connected tubular pipes such as drill or production pipes, a transmitter for transmitting a signal along the string and a receiver for receiving the signal placed along the string at a location spaced from said transmitting means, wherein the pipes between the transmitter and the receiver are ordered according to length of tube to minimize loss of signal from said transmitter to said receiver. 7 figs.

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

    E-Print Network [OSTI]

    Green, M.A.

    2010-01-01T23:59:59.000Z

    is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

  10. Typical Clothing Ensemble Insulation Levels for Sixteen Body Parts

    E-Print Network [OSTI]

    Lee, Juyoun; Zhang, Hui; Arens, Edward

    2013-01-01T23:59:59.000Z

    Thermal Comfort.1994 CLO Insulation Levels For Sixteen Bodya mesh arm chair whose insulation level was measured. FigureExperimental Conditions. CLO Insulation Levels For Sixteen

  11. Chevron Richmond Refinery Pipe Rupture and Fire Animation - Work...

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

    Chevron Richmond Refinery Pipe Rupture and Fire Animation - Work Planning and Control is Not Chevron Richmond Refinery Pipe Rupture and Fire Animation - Work Planning and Control...

  12. An Analytical Approach for Tail-Pipe Emissions Estimation with...

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

    An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled Engine and Aftertreatment System An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled...

  13. Geothermal drill pipe corrosion test plan

    SciTech Connect (OSTI)

    Caskey, B.C.; Copass, K.S.

    1980-12-01T23:59:59.000Z

    Plans are presented for conducting a field test of drill pipe corrosion, comparing air and nitrogen as drilling fluids. This test will provide data for evaluating the potential of reducing geothermal well drilling costs by extending drill pipe life and reducing corrosion control costs. The 10-day test will take place during fall 1980 at the Baca Location in Sandoval County, New Mexico.

  14. Measuring overall emittance of concentrator receiver pipes

    SciTech Connect (OSTI)

    Gerich, J.W.; Reitter, T.A.; Merriam, M.F.

    1980-03-01T23:59:59.000Z

    A simple and accurate method for measuring the overall emittance of receiver pipes used with cylindrical concentrators is described. Experimental measurements obtained for steel pipes with a black chrome over nickel selective surface are presented. The observed strong temperature dependence of emittance indicates that the use of room temperature emittance data will substantially overestimate collector efficiency. (SPH)

  15. Heat pipe with embedded wick structure

    DOE Patents [OSTI]

    Adkins, Douglas Ray (Albuquerque, NM); Shen, David S. (Albuquerque, NM); Tuck, Melanie R. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Grafe, V. Gerald (Corrales, NM)

    1999-01-01T23:59:59.000Z

    A heat pipe has an embedded wick structure that maximizes capillary pumping capability. Heat from attached devices such as integrated circuits evaporates working fluid in the heat pipe. The vapor cools and condenses on a heat dissipation surface. The condensate collects in the wick structure, where capillary pumping returns the fluid to high heat areas.

  16. Heat pipe with embedded wick structure

    DOE Patents [OSTI]

    Adkins, Douglas Ray (Albuquerque, NM); Shen, David S. (Albuquerque, NM); Tuck, Melanie R. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Grafe, V. Gerald (Corrales, NM)

    1998-01-01T23:59:59.000Z

    A heat pipe has an embedded wick structure that maximizes capillary pumping capability. Heat from attached devices such as integrated circuits evaporates working fluid in the heat pipe. The vapor cools and condenses on a heat dissipation surface. The condensate collects in the wick structure, where capillary pumping returns the fluid to high heat areas.

  17. Process for making ceramic insulation

    DOE Patents [OSTI]

    Akash, Akash (Salt Lake City, UT); Balakrishnan, G. Nair (Sandy, UT)

    2009-12-08T23:59:59.000Z

    A method is provided for producing insulation materials and insulation for high temperature applications using novel castable and powder-based ceramics. The ceramic components produced using the proposed process offers (i) a fine porosity (from nano-to micro scale); (ii) a superior strength-to-weight ratio; and (iii) flexibility in designing multilayered features offering multifunctionality which will increase the service lifetime of insulation and refractory components used in the solid oxide fuel cell, direct carbon fuel cell, furnace, metal melting, glass, chemical, paper/pulp, automobile, industrial heating, coal, and power generation industries. Further, the ceramic components made using this method may have net-shape and/or net-size advantages with minimum post machining requirements.

  18. The Sanford Underground Research Facility at Homestake

    E-Print Network [OSTI]

    J. Heise

    2014-01-05T23:59:59.000Z

    The former Homestake gold mine in Lead, South Dakota is being transformed into a dedicated laboratory to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and engineering. A key component of the Sanford Underground Research Facility (SURF) is the Davis Campus, which is in operation at the 4850-foot level (4300 m.w.e) and currently hosts three projects: the LUX dark matter experiment, the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment and the CUBED low-background counter. Plans for possible future experiments at SURF are well underway and include long baseline neutrino oscillation experiments, future dark matter experiments as well as nuclear astrophysics accelerators. Facility upgrades to accommodate some of these future projects have already started. SURF is a dedicated facility with significant expansion capability.

  19. Dynamic underground stripping. Innovative technology summary report

    SciTech Connect (OSTI)

    NONE

    1995-04-01T23:59:59.000Z

    Dynamic Underground Stripping (DUS) is a combination of technologies targeted to remediate soil and ground water contaminated with organic compounds. DUS is effective both above and below the water table and is especially well suited for sites with interbedded sand and clay layers. The main technologies comprising DUS are steam injection at the periphery of a contaminated area to heat permeable subsurface areas, vaporize volatile compounds bound to the soil, and drive contaminants to centrally located vacuum extraction wells; electrical heating of less permeable sediments to vaporize contaminants and drive them into the steam zone; and underground imaging such as Electrical Resistance Tomography to delineate heated areas to ensure total cleanup and process control. A full-scale demonstration was conducted on a gasoline spill site at Lawrence Livermore National Laboratory in Livermore, California from November 1992 through December 1993.

  20. The Sanford underground research facility at Homestake

    SciTech Connect (OSTI)

    Heise, J. [Sanford Underground Research Facility, 630 East Summit Street, Lead, SD 57754 (United States)

    2014-06-24T23:59:59.000Z

    The former Homestake gold mine in Lead, South Dakota is being transformed into a dedicated laboratory to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and engineering. A key component of the Sanford Underground Research Facility (SURF) is the Davis Campus, which is in operation at the 4850-foot level (4300 m.w.e) and currently hosts three projects: the LUX dark matter experiment, the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment and the CUBED low-background counter. Plans for possible future experiments at SURF are well underway and include long baseline neutrino oscillation experiments, future dark matter experiments as well as nuclear astrophysics accelerators. Facility upgrades to accommodate some of these future projects have already started. SURF is a dedicated facility with significant expansion capability.

  1. Task force reduces stuck-pipe costs

    SciTech Connect (OSTI)

    Bradley, W.B. (BP Research, Houston, TX (US)); Jarman, D. (BP Exploration Operation Co., Aberdeen (GB)); Auflick, R.A.; Plott, R.S. (BP Exploration Operating Co., Houston, TX (US)); Wood, R.D. (BP Exploration Operating Co., London (GB)); Schofield, T.R. (BP Exploration Operating Co., Beijing (CN)); Cocking, D. (BP Exploration Operating Co., Ho Chi Minh City (CN))

    1991-05-27T23:59:59.000Z

    A task-force approach to stuck pipe has produced more than a 70% reduction in BP Exploration Operating Co.'s worldwide stuck-pipe costs during 1989 and 1990. We believe that these results have been primarily due to focusing our attention on improving personnel performance rather than to the introduction of new technology. Key elements in this paper of the efforts involved: Recognizing the importance of the drilling contractor and the service company staff's role in helping control stuck pipe; Promoting a rig-team approach to tackling the problem; Providing training on rig-team, stuck-pipe problem solving; and raising awareness of stuck pipe through a coordinated worldwide communications program among BP, contractors, and service companies.

  2. Glass heat pipe evacuated tube solar collector

    DOE Patents [OSTI]

    McConnell, Robert D. (Lakewood, CO); Vansant, James H. (Tracy, CA)

    1984-01-01T23:59:59.000Z

    A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular glass particles fused together by heat on the inside surface of the heat pipe with a water glass binder solution to enhance capillary drive distribution of the thermal transfer fluid in the heat pipe throughout the entire inside surface of the evaporator portion of the heat pipe. Selective coatings are used on the heat pipe surface to maximize solar absorption and minimize energy radiation, and the glass wick can alternatively be fabricated with granular particles of black glass or obsidian.

  3. IPIRG programs - advances in pipe fracture technology

    SciTech Connect (OSTI)

    Wilkowski, G.; Olson, R.; Scott, P. [Batelle, Columbus, OH (United States)

    1997-04-01T23:59:59.000Z

    This paper presents an overview of the advances made in fracture control technology as a result of the research performed in the International Piping Integrity Research Group (IPIRG) program. The findings from numerous experiments and supporting analyses conducted to investigate the behavior of circumferentially flawed piping and pipe systems subjected to high-rate loading typical of seismic events are summarized. Topics to be discussed include; (1) Seismic loading effects on material properties, (2) Piping system behavior under seismic loads, (3) Advances in elbow fracture evaluations, and (4) {open_quotes}Real{close_quotes} piping system response. The presentation for each topic will be illustrated with data and analytical results. In each case, the state-of-the-art in fracture mechanics prior to the first IPIRG program will be contrasted with the state-of-the-art at the completion of the IPIRG-2 program.

  4. Pumping carbon out of underground coal deposits

    SciTech Connect (OSTI)

    Steinberg, M.

    1999-07-01T23:59:59.000Z

    Thin steam and deep coal deposits are difficult and costly to mine. Underground coal gasification (UCG) with air or oxygen was thought to alleviate this problem. Experimental field tests were conducted in Wyoming and Illinois. Problems were encountered concerning a clear path for the team gasification to take place and removal of gas. The high endothermic heat of reaction requiring large quantities of steam and oxygen makes the process expensive. Safety problems due to incomplete reaction is also of concern. A new approach is proposed which can remedy most of these drawbacks for extracting energy from underground coal deposits. It is proposed to hydrogasify the coal underground with a heated hydrogen gas stream under pressure to produce a methane-rich gas effluent stream. The hydrogasification of coal is essentially exothermic so that no steam or oxygen is required. The gases formed are always in a reducing atmosphere making the process safe. The hydrogen is obtained by thermally decomposing the effluent methane above ground to elemental carbon and hydrogen. The hydrogen is returned underground for further hydrogasification of the coal seam. The small amount of oxygen and sulfur in the coal can be processed out above ground by removal as water and H{sub 2}S. Any CO can be removed by a methanation step returning the methane to process. The ash remains in the ground and the elemental carbon produced is the purest form of coal. The particulate carbon can be slurried with water to produce a fuel stream that can be fed to a turbine for efficient combined cycle power plants with lower CO{sub 2} emissions. Coal cannot be used for combined cycle because of its ash and sulfur content destroys the gas turbine. Depending on its composition of coal seam some excess hydrogen is also produced. Hydrogen is, thus, used to pump pure carbon out of the ground.

  5. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E. (Durham, CT); Perry, Carl A. (Middletown, CT); Wassell, Mark E. (Kingwood, TX); Barbely, Jason R. (Middletown, CT); Burgess, Daniel E. (Middletown, CT); Cobern, Martin E. (Cheshire, CT)

    2010-07-27T23:59:59.000Z

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  6. Rotary steerable motor system for underground drilling

    DOE Patents [OSTI]

    Turner, William E. (Durham, CT); Perry, Carl A. (Middletown, CT); Wassell, Mark E. (Kingwood, TX); Barbely, Jason R. (Middletown, CT); Burgess, Daniel E. (Middletown, CT); Cobern, Martin E. (Cheshire, CT)

    2008-06-24T23:59:59.000Z

    A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

  7. Approximating Metal-Insulator Transitions

    E-Print Network [OSTI]

    C. Danieli; K. Rayanov; B. Pavlov; G. Martin; S. Flach

    2014-05-06T23:59:59.000Z

    We consider quantum wave propagation in one-dimensional quasiperiodic lattices. We propose an iterative construction of quasiperiodic potentials from sequences of potentials with increasing spatial period. At each finite iteration step the eigenstates reflect the properties of the limiting quasiperiodic potential properties up to a controlled maximum system size. We then observe approximate metal-insulator transitions (MIT) at the finite iteration steps. We also report evidence on mobility edges which are at variance to the celebrated Aubry-Andre model. The dynamics near the MIT shows a critical slowing down of the ballistic group velocity in the metallic phase similar to the divergence of the localization length in the insulating phase.

  8. Insulation board and process of making

    DOE Patents [OSTI]

    Nowobilski, Jeffert J. (Orchard Park, NY); Owens, William J. (Kenmore, NY)

    1985-01-01T23:59:59.000Z

    Insulation board capable of bearing a load without significant loss of insulating capacity due to compression, produced by a method wherein the board is made in compliance with specified conditions of time, temperature and pressure.

  9. Insulator damage endangers public, power reliability; ratepayers...

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

    for tips about multiple incidents of insulators damaged by firearms on its high-voltage power line near Joint Base Lewis-McChord in Tacoma, Wash. Damaged insulators can put...

  10. Degradation of Structural Alloys Under Thermal Insulation

    E-Print Network [OSTI]

    McIntyre, D. R.

    1984-01-01T23:59:59.000Z

    Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

  11. STATE OF CALIFORNIA ENVELOPE INSULATION; ROOFING; FENESTRATION

    E-Print Network [OSTI]

    STATE OF CALIFORNIA ENVELOPE ­ INSULATION; ROOFING; FENESTRATION CEC-CF-6R-ENV-01 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-01 Envelope ­ Insulation; Roofing:__________________________________ Brand Name:_______________________________ Thickness (inches):_________________________ Thermal

  12. Degradation of Structural Alloys Under Thermal Insulation 

    E-Print Network [OSTI]

    McIntyre, D. R.

    1984-01-01T23:59:59.000Z

    Wet thermal insulation may actively degrade steel and stainless steel structures by general corrosion or stress-corrosion cracking. Two different mechanisms of water ingress into insulation are discussed; flooding from external sources...

  13. The Sanford Underground Research Facility at Homestake

    E-Print Network [OSTI]

    Heise, Jaret

    2015-01-01T23:59:59.000Z

    The former Homestake gold mine in Lead, South Dakota has been transformed into a dedicated facility to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and engineering. A key component of the Sanford Underground Research Facility (SURF) is the Davis Campus, which is in operation at the 4850-foot level (4300 m.w.e.) and currently hosts two main physics projects: the LUX dark matter experiment and the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment. In addition, two low-background counters currently operate at the Davis Campus in support of current and future experiments. Expansion of the underground laboratory space is underway at the 4850L Ross Campus in order to maintain and enhance low-background assay capabilities as well as to host a unique nuclear astrophysics accelerator facility. Plans to accommodate other future experiments at SURF are also underway and include the next generation of direct-sea...

  14. The Sanford Underground Research Facility at Homestake

    E-Print Network [OSTI]

    Jaret Heise

    2015-03-05T23:59:59.000Z

    The former Homestake gold mine in Lead, South Dakota has been transformed into a dedicated facility to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and engineering. A key component of the Sanford Underground Research Facility (SURF) is the Davis Campus, which is in operation at the 4850-foot level (4300 m.w.e.) and currently hosts two main physics projects: the LUX dark matter experiment and the MAJORANA DEMONSTRATOR neutrinoless double-beta decay experiment. In addition, two low-background counters currently operate at the Davis Campus in support of current and future experiments. Expansion of the underground laboratory space is underway at the 4850L Ross Campus in order to maintain and enhance low-background assay capabilities as well as to host a unique nuclear astrophysics accelerator facility. Plans to accommodate other future experiments at SURF are also underway and include the next generation of direct-search dark matter experiments and the Fermilab-led international long-baseline neutrino program. Planning to understand the infrastructure developments necessary to accommodate these future projects is well advanced and in some cases have already started. SURF is a dedicated research facility with significant expansion capability.

  15. Dynamics of Dirac Fermions in Topological Insulators

    E-Print Network [OSTI]

    Arnold, Anton

    Dynamics of Dirac Fermions in Topological Insulators R. Hammer1 , C. Ertler1 , W. P¨otz1 , and A.hammer@uni-graz.at Abstract We study the coherent dynamics of Dirac fermions on the surface of topological insulators in one topological insulators (TI) we investigate theoretically the dynamics of Dirac fermion wave packets on their 2

  16. Vacuum-insulated catalytic converter

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO)

    2001-01-01T23:59:59.000Z

    A catalytic converter has an inner canister that contains catalyst-coated substrates and an outer canister that encloses an annular, variable vacuum insulation chamber surrounding the inner canister. An annular tank containing phase-change material for heat storage and release is positioned in the variable vacuum insulation chamber a distance spaced part from the inner canister. A reversible hydrogen getter in the variable vacuum insulation chamber, preferably on a surface of the heat storage tank, releases hydrogen into the variable vacuum insulation chamber to conduct heat when the phase-change material is hot and absorbs the hydrogen to limit heat transfer to radiation when the phase-change material is cool. A porous zeolite trap in the inner canister absorbs and retains hydrocarbons from the exhaust gases when the catalyst-coated substrates and zeolite trap are cold and releases the hydrocarbons for reaction on the catalyst-coated substrate when the zeolite trap and catalyst-coated substrate get hot.

  17. Impact of Thermally Insulated Floors 

    E-Print Network [OSTI]

    Alghimlas, F.; Omar, E. A.

    2004-01-01T23:59:59.000Z

    of insulated floors. It was found that using an R- 10 floors in multi-story apartment buildings greatly reduce both the peak cooling demand as well as the energy consumption by about 15%, whereas only minimal savings (about 4%) were detected in the case...

  18. A Holographic Fractional Topological Insulator

    E-Print Network [OSTI]

    Carlos Hoyos-Badajoz; Kristan Jensen; Andreas Karch

    2010-07-19T23:59:59.000Z

    We give a holographic realization of the recently proposed low energy effective action describing a fractional topological insulator. In particular we verify that the surface of this hypothetical material supports a fractional quantum Hall current corresponding to half that of a Laughlin state.

  19. Pipe crawlers: Versatile adaptations for real applications

    SciTech Connect (OSTI)

    Hapstack, M.; Talarek, T.R.

    1990-01-01T23:59:59.000Z

    A problem at the Savannah River Site requires the unique application of a pipe crawler. A number of stainless steel pipes buried in concrete require ultrasonic inspection of the heat affected zones of the welds for detection of flaws or cracks. The paper describes the utilization of an inch-worm motion pipe crawler which negotiates a 90 degree reducing elbow with significant changes in diameter and vertical sections before entering the area of concern. After a discussion of general considerations and problem description, special requirements to meet the objectives and the design approach regarding the tractor, control system, instrument carriage, and radiation protection are discussed. 2 refs., 11 figs. (MB)

  20. D and D (System Closure) Mockup Testing Demonstration. Remediation of Legacy Radioactive Piping and Tank Systems at the Reactor Technology Complex (RTC) (2007)

    SciTech Connect (OSTI)

    Byrne-Kelly, D.; Brown, Ch.; Hart, A. [MSE Technology Applications, Inc., Butte, Montana (United States); Welty, B. [Portage, Inc., Idaho Falls, ID (United States); Winterholler, K. [CWI, Idaho Falls, ID (United States)

    2008-07-01T23:59:59.000Z

    This paper presents the results of an integrated mockup demonstration of technologies and equipment designed to remove radioactively contaminated piping systems from underground vaults and pipe trenches at the Idaho National Laboratory. The integrated mockup demonstration included performing a bench scale wax fixative study and field demonstrations of the remotely operated equipment that will be used to remove radioactively contaminated pipe systems. The bench-scale wax fixative study involved defining optimum temperature and moisture conditions for effectively filling pipe sections containing residual wastes with a wax based fixative. The field demonstrations involved dismantling underground vault and trench piping systems, including pipe sections filled with the wax fixative. The purpose of the demonstration was to ensure the selected technologies and equipment would be effective prior to field deployment. The demonstration was conducted as a joint effort by MSE Technology Applications, Inc., and CWI on behalf of the U.S. Department of Energy at the Mike Mansfield Advanced Technology Center in Butte Montana. In summary: The mockup included two main tests at the MSE facility: 1) a vault mockup that included stainless and carbon steel pipe cutting and removal; and 2) a trench mockup that included cutting and removing buried Duriron and ductile iron piping. Both mockups included cutting and removing a pipe filled with the WAXFIX stabilizing material. Based on the MSE moisture tests, project personnel concluded that the WAXFIX product would be effective when used on wastes with different moisture contents that may be encountered in piping systems during the closure of the TRA-630 Catch Tank System at INL. A section of stainless steel pipe was also used to test a number of leak stop alternatives for wax leaks that may be encountered in a degraded piping system. Both the vault and the trench mockup demonstration proved successful for ICP, DOE, and MSE. The ICP operators received valuable hands-on training using the selected equipment and tooling in situations very similar to what they will encounter at INL. Proper tool selection and tool change procedures were defined as situations requiring these operations were encountered. Methodologies for approaching similar trench and vault situations (including safety concerns) were identified and experienced, and wax filled pipes were successfully cut and removed without spilling the surrogate materials within the pipes. All of the tools performed well except the band saw tool. The band saw was specifically designed to cut pipe; however, it was not robust enough and generally the shear was used in its place. Mockups are essential in gaining actual hands on training before going to the field. Mockups improve efficiency and safety that results in cost effective remediation. The MSE facility provides a valuable resource for demonstration of mockups. The facility has several acres of available space and a highly qualified support staff. The integrated mockup demonstration was considered a great success by all involved parties. ICP operators received valuable experience using the equipment selected for catch tank system closure before field deployment in a radiological contaminated environment. The selected equipment proved to be applicable to the safe and effective closure of the catch tank systems, and MSE demonstrated the ability to provide facility and services necessary to support closure mockup demonstrations. (authors)

  1. EPA - Ground Water Discharges (EPA's Underground Injection Control...

    Open Energy Info (EERE)

    Discharges (EPA's Underground Injection Control Program) webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: EPA - Ground Water Discharges (EPA's...

  2. Utah Division of Environmental Response and Remediation Underground...

    Open Energy Info (EERE)

    Environmental Response and Remediation Underground Storage Tank Branch Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Utah Division of...

  3. Alabama Underground Storage Tank And Wellhead Protection Act...

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

    commission, is authorized to promulgate rules and regulations governing underground storage tanks and is authorized to seek the approval of the United States Environmental...

  4. ,"Lower 48 States Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  5. NNSA Commemorates the 20th Anniversary of the Last Underground...

    National Nuclear Security Administration (NNSA)

    Commemorates the 20th Anniversary of the Last Underground Nuclear Test | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

  6. ,"AGA Producing Region Underground Natural Gas Storage - All...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  7. ,"AGA Western Consuming Region Underground Natural Gas Storage...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  8. ,"West Virginia Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  9. ,"AGA Eastern Consuming Region Underground Natural Gas Storage...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  10. ,"New York Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  11. ,"New Mexico Underground Natural Gas Storage - All Operators...

    U.S. Energy Information Administration (EIA) Indexed Site

    Underground Natural Gas Storage - All Operators" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  12. EA-1943: Long Baseline Neutrino Facility/Deep Underground Neutrino...

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

    and at a "far detector," at the Sanford Underground Research Facility (SURF) in Lead, South Dakota. NOTE: This Project was previously designated (DOEEA-1799). Further...

  13. Progress Continues Toward Closure of Two Underground Waste Tanks...

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

    fiscal year 2013, which ended Sept. 30, SRR reached contract milestones in the Interim Salt Disposition Process, which treats salt waste from the underground storage tanks. Salt...

  14. Pore Models Track Reactions in Underground Carbon Capture

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

    want to model what happens to the crystals' geochemistry when the greenhouse gas carbon dioxide is injected underground for sequestration. Image courtesy of David...

  15. COST AND SCHEDULE FOR DRILLING AND MINING UNDERGROUND TEST FACILITIES

    E-Print Network [OSTI]

    Lamb, D.W.

    2013-01-01T23:59:59.000Z

    SCHEDULE FOR DRILLING AND MINING UNDERGROUND TEST FACILITIEStimes are calculated for a mining and drilling progrilln toof cost and time to compl mining and core drilling for

  16. Water pollution control for underground coal gasification

    SciTech Connect (OSTI)

    Humenick, M.J.

    1984-06-01T23:59:59.000Z

    Water pollution arising from underground gasification of coal is one of the important considerations in the eventual commercialization of the process. Because many coal seams which are amenable to in situ gasification are also ground-water aquifers, contaminants may be released to these ground waters during and after gasification. Also, when product gas is processed above ground for use, wastewater streams are generated which are too polluted to be discharged. The purpose of this paper is to characterize the nature of the groundwater and above-ground pollutants, discuss the potential long and short-term effects on ground water, propose control and restoration strategies, and to identify potential wastewater treatment schemes.

  17. Method of locating underground mines fires

    DOE Patents [OSTI]

    Laage, Linneas (Eagam, MN); Pomroy, William (St. Paul, MN)

    1992-01-01T23:59:59.000Z

    An improved method of locating an underground mine fire by comparing the pattern of measured combustion product arrival times at detector locations with a real time computer-generated array of simulated patterns. A number of electronic fire detection devices are linked thru telemetry to a control station on the surface. The mine's ventilation is modeled on a digital computer using network analysis software. The time reguired to locate a fire consists of the time required to model the mines' ventilation, generate the arrival time array, scan the array, and to match measured arrival time patterns to the simulated patterns.

  18. 100-N Area underground storage tank closures

    SciTech Connect (OSTI)

    Rowley, C.A.

    1993-08-01T23:59:59.000Z

    This report describes the removal/characterization actions concerning underground storage tanks (UST) at the 100-N Area. Included are 105-N-LFT, 182-N-1-DT, 182-N-2-DT, 182-N-3-DT, 100-N-SS-27, and 100-N-SS-28. The text of this report gives a summary of remedial activities. In addition, correspondence relating to UST closures can be found in Appendix B. Appendix C contains copies of Unusual Occurrence Reports, and validated sampling data results comprise Appendix D.

  19. Flow characteristics in underground coal gasification

    SciTech Connect (OSTI)

    Chang, H.L.; Himmelblau, D.M.; Edgar, T.F.

    1982-01-01T23:59:59.000Z

    During the underground coal gasification field test at the Hoe Creek site No. 2, Wyoming, helium pulses were introduced to develop information to characterize the flow field, and to estimate the coefficients in dispersion models of the flow. Quantitative analysis of the tracer response curves shows an increasing departure from a plug flow regime with time because of the combined effects of the free and forced convection in addition to the complex non-uniformity of the flow field. The Peclet number was a function of temperature, pressure, gas recovery and characteristic velocity, as well as the split of the gas between the parallel streams in the model. 17 refs.

  20. Heat pipe dehumidification for supermarket energy savings

    E-Print Network [OSTI]

    Oliver, Eric M. (Eric Michael)

    1994-01-01T23:59:59.000Z

    This thesis examines the possibility of using a heat pipe installed in the air conditioning unit of a supermarket to increase the level of dehumidification of the inside air. This dehumidification is expected to reduce the ...

  1. Reliability Estimation for Double Containment Piping

    SciTech Connect (OSTI)

    L. Cadwallader; T. Pinna

    2012-08-01T23:59:59.000Z

    Double walled or double containment piping is considered for use in the ITER international project and other next-generation fusion device designs to provide an extra barrier for tritium gas and other radioactive materials. The extra barrier improves confinement of these materials and enhances safety of the facility. This paper describes some of the design challenges in designing double containment piping systems. There is also a brief review of a few operating experiences of double walled piping used with hazardous chemicals in different industries. This paper recommends approaches for the reliability analyst to use to quantify leakage from a double containment piping system in conceptual and more advanced designs. The paper also cites quantitative data that can be used to support such reliability analyses.

  2. Hydraulic fracturing slurry transport in horizontal pipes

    SciTech Connect (OSTI)

    Shah, S.N.; Lord, D.L. (Halliburton Services (US))

    1990-09-01T23:59:59.000Z

    Horizontal-well activity has increased throughout the industry in the past few years. To design a successful hydraulic fracturing treatment for horizontal wells, accurate information on the transport properties of slurry in horizontal pipe is required. Limited information exists that can be used to estimate critical deposition and resuspension velocities when proppants are transported in horizontal wells with non-Newtonian fracturing gels. This paper presents a study of transport properties of various hydraulic fracturing slurries in horizontal pipes. Flow data are gathered in three transparent horizontal pipes with different diameters. Linear and crosslinked fracturing gels were studied, and the effects of variables--e.g., pipe size; polymer-gelling-agent concentration; fluid rheological properties; crosslinking effects; proppant size, density, and concentrations; fluid density; and slurry pump rate--on critical deposition and resuspension velocities were investigated. Also, equations to estimate the critical deposition and resuspension velocities of fracturing gels are provided.

  3. Industrial Waste Heat Recovery Using Heat Pipes 

    E-Print Network [OSTI]

    Ruch, M. A.

    1981-01-01T23:59:59.000Z

    For almost a decade now, heat pipes with secondary finned surfaces have been utilized in counter flow heat exchangers to recover sensible energy from industrial exhaust gases. Over 3,000 such heat exchangers are now in service, recovering...

  4. Flow conditions of fresh mortar and concrete in different pipes

    SciTech Connect (OSTI)

    Jacobsen, Stefan, E-mail: stefan.jacobsen@ntnu.n [Norwegian University of Science and Technology, Dept of Structural Engineering, Trondheim (Norway); Haugan, Lars; Hammer, Tor Arne [SINTEF Byggforsk AS Building and Infrastructure, Trondheim (Norway); Kalogiannidis, Evangelos [Norwegian University of Science and Technology, Dept of Structural Engineering, Trondheim (Norway)

    2009-11-15T23:59:59.000Z

    The variation in fresh concrete flow rate over the pipe cross section was investigated on differently coloured and highly flowable concrete mixes flowing through pipes of different materials (rubber, steel, acryl). First, uncoloured (gray) concrete was poured through the pipe and the pipe blocked. Similar but coloured (black) concrete was then poured into the pipe filled with gray concrete, flowing after the gray concrete for a while before being blocked and hardened. The advance of the colouring along the pipe wall (showing boundary flow rate) was observed on the moulded concrete surface appearing after removing the pipe from the hardened concrete. The shapes of the interfaces between uncoloured and coloured concrete (showing variation of flow rate over the pipe cross section) were observed on sawn surfaces of concrete half cylinders cut along the length axes of the concrete-filled pipe. Flow profiles over the pipe cross section were clearly seen with maximum flow rates near the centre of the pipe and low flow rate at the pipe wall (typically rubber pipe with reference concrete without silica fume and/or stabilizers). More plug-shaped profiles, with long slip layers and less variation of flow rate over the cross section, were also seen (typically in smooth acrylic pipes). Flow rate, amount of concrete sticking to the wall after flow and SEM-images of pipe surface roughness were observed, illustrating the problem of testing full scale pumping.

  5. Development of 230-kV high-pressure, gas-filled, pipe-type cable system: Model test program phase

    SciTech Connect (OSTI)

    Silver, D.A. (Pirelli Cable Corp., Florham Park, NJ (USA))

    1990-09-01T23:59:59.000Z

    The objective of this project was the development of a 230 kV high-pressure gas-filled (HPGF) pipe-type cable employing paper or laminate of paper-polypropylene-paper (PPP) insulation pressurized with N{sub 2} gas or a blend of 15% SF{sub 6}/85% N{sub 2} gas. Heretofore, HPGF pipe-type cables have been restricted to 138 kV ratings due to technical difficulties in achieving higher voltage ratings. In view of the high cost of manufacturing and testing a large number of full size cables, cable models with 2 mm (80 mils) and 2.5 mm (100 mils) wall thicknesses of insulation enclosed in a test fixture capable of withstanding a test pressure of 2070 kPa (300 psig) and high electrical stresses were employed for dissipation factor versus voltage measurements and for ac and impulse breakdown tests at rated and emergency operating temperatures. In addition, a 36 cm (14 in) full wall cable model enclosed in a pressure vessel was utilized for transient pressure response tests. The results of this investigation attest tot he technical feasibility of the design and manufacture of a 230 kV HPGF pipe-type cable employing paper or PPP insulation pressurized with 100% N{sub 2} gas or a blend of 15% SF{sub 6}/85% N{sub 2} gas for operation under normal and 100 hour emergency conditions at conductor temperatures of 85{degree} and 105{degree}C, respectively. The manufacture of a full size PPP insulated cable pressurized with a blend of 15% SF{sub 6}/85% N{sub 2} gas employing pre-impregnated PPP insulating tapes and an annular conductor based on the design stresses defined in this report is recommended for laboratory evaluation and extended life tests. 11 refs., 45 figs., 11 tabs.

  6. HTS current lead using a composite heat pipe

    SciTech Connect (OSTI)

    Daugherty, M.A.; Prenger, F.C.; Hill, D.D.; Daney, D.E.; Woloshun, K.A.

    1995-12-31T23:59:59.000Z

    This paper discusses the design and fabrication of HTS current leads being built by Los Alamos to supply power to a demonstration HTS coil which will operate in a vacuum cooled by a cryocooler. Because vapor cooling is not an option for this application the leads must be entirely conductively cooled. In the design of HTS current leads for this type of application, it is desirable to intercept part of the heat load at an intermediate temperature. This thermal intercept or connection must be electrically insulating but thermally conductive, two mutually exclusive properties of most candidate solid materials. To achieve this end we incorporate a composite nitrogen heat pipe, constructed of conducting and non-conducting materials, to provide efficient thermal communication and simultaneously, electrical isolation between the lead and the intermediate temperature heat sink. Another important feature of the current lead design is the use of high Jc thick film superconductors deposited on a non-conducting substrate to reduce the conductive heat leak through the lower portion of the lead. Two flexible electrical conductors are incorporated to accommodate handling, assembly and the dissimilar expansion coefficients of the various materials.

  7. Insulation assembly for electric machine

    SciTech Connect (OSTI)

    Rhoads, Frederick W.; Titmuss, David F.; Parish, Harold; Campbell, John D.

    2013-10-15T23:59:59.000Z

    An insulation assembly is provided that includes a generally annularly-shaped main body and at least two spaced-apart fingers extending radially inwards from the main body. The spaced-apart fingers define a gap between the fingers. A slot liner may be inserted within the gap. The main body may include a plurality of circumferentially distributed segments. Each one of the plurality of segments may be operatively connected to another of the plurality of segments to form the continuous main body. The slot liner may be formed as a single extruded piece defining a plurality of cavities. A plurality of conductors (extendable from the stator assembly) may be axially inserted within a respective one of the plurality of cavities. The insulation assembly electrically isolates the conductors in the electric motor from the stator stack and from other conductors.

  8. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

    1988-01-01T23:59:59.000Z

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

  9. High temperature structural insulating material

    DOE Patents [OSTI]

    Chen, W.Y.

    1984-07-27T23:59:59.000Z

    A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800/sup 0/C), low thermal conductivity (below about 0.2 W/m/sup 0/C), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800/sup 0/C, a diameter within the range of 20-200 ..mu..m, and a wall thickness in the range of about 2 to 4 ..mu..m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.

  10. High temperature structural insulating material

    DOE Patents [OSTI]

    Chen, Wayne Y. (Munster, IN)

    1987-01-01T23:59:59.000Z

    A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800.degree. C.), low thermal conductivity (below about 0.2 W/m.degree. C.), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800.degree. C., a diameter within the range of 20-200 .mu.m, and a wall thickness in the range of about 2-4 .mu.m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.

  11. Thermionic generator module with heat pipes

    SciTech Connect (OSTI)

    Horner-Richardson, K.; Ernst, D.M.

    1993-06-15T23:59:59.000Z

    A thermionic converter module is described comprising: a first heat pipe with an annular casing which has a first surface located on an inside surface of the annular casing, at least part of the first surface of the casing of the first heat pipe having constructed upon it a thermionic converter emitter located so that heat will be transferred by conduction from the first heat pipe casing to the thermionic converter emitter; a second heat pipe with a casing which has a second surface, the second surface being located within the first surface of the annular casing of the first heat pipe so that it is surrounded by the first surface; a thermionic converter collector located so as to transfer heat by conduction to the second surface of the casing of the second heat pipe with the thermionic converter collector being adjacent to the thermionic converter emitter but being separated from the thermionic converter emitter by an inter electrode space; and end fitting structures located so that, with the thermionic converter collector and the thermionic converter emitter, they complete an enclosure around the inter electrode space and form an evacuated enclosure within which are located the thermionic converter collector and the thermionic converter emitter.

  12. Analysis of a piping system for requalification

    SciTech Connect (OSTI)

    Hsieh, B.J.; Tang, Yu.

    1992-01-01T23:59:59.000Z

    This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

  13. Analysis of a piping system for requalification

    SciTech Connect (OSTI)

    Hsieh, B.J.; Tang, Yu

    1992-05-01T23:59:59.000Z

    This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

  14. etter, Specifications, and Survey Report: Removal of Overhead Yard Piping and Asbestos Insulation

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7 AugustAFRICAN3uj:'I,\ W CTheuse of biota

  15. Sampling of Insulation on Inter-Building Overhead Utility Pipes for Asbestos Content.

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7 AugustAFRICAN3u ;;;:: A'Salmon, Mississippi,

  16. Innovative Porous Media Approach in Modeling Biofilm Applications, Human Eye and Nanofluid Based Heat Pipes

    E-Print Network [OSTI]

    Shafahi, Maryam

    2010-01-01T23:59:59.000Z

    and C. Yu, Effect of nanofluid on flat heat pipe thermalheat pipe using CuO nanofluid, Journal of Micromechanics andtransport capability in a nanofluid oscillating heat pipe,

  17. Underground coal gasification using oxygen and steam

    SciTech Connect (OSTI)

    Yang, L.H.; Zhang, X.; Liu, S. [China University of Mining & Technology, Xuzhou (China)

    2009-07-01T23:59:59.000Z

    In this paper, through model experiment of the underground coal gasification, the effects of pure oxygen gasification, oxygen-steam gasification, and moving-point gasification methods on the underground gasification process and gas quality were studied. Experiments showed that H{sub 2} and CO volume fraction in product gas during the pure oxygen gasification was 23.63-30.24% and 35.22-46.32%, respectively, with the gas heating value exceeding 11.00 MJ/m{sup 3}; under the oxygen-steam gasification, when the steam/oxygen ratio stood at 2: 1, gas compositions remained virtually stable and CO + H{sub 2} was basically between 61.66 and 71.29%. Moving-point gasification could effectively improve the changes in the cavity in the coal seams or the effects of roof inbreak on gas quality; the ratio of gas flowing quantity to oxygen supplying quantity was between 3.1:1 and 3.5:1 and took on the linear changes; on the basis of the test data, the reasons for gas quality changes under different gasification conditions were analyzed.

  18. Topological Insulators at Room Temperature

    SciTech Connect (OSTI)

    Zhang, Haijun; /Beijing, Inst. Phys.; Liu, Chao-Xing; /Tsinghua U., Beijing; Qi, Xiao-Liang; /Stanford U., Phys. Dept.; Dai, Xi; Fang, Zhong; /Beijing, Inst. Phys.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-25T23:59:59.000Z

    Topological insulators are new states of quantum matter with surface states protected by the time-reversal symmetry. In this work, we perform first-principle electronic structure calculations for Sb{sub 2}Te{sub 3}, Sb{sub 2}Se{sub 3}, Bi{sub 2}Te{sub 3} and Bi{sub 2}Se{sub 3} crystals. Our calculations predict that Sb{sub 2}Te{sub 3}, Bi{sub 2}T e{sub 3} and Bi{sub 2}Se{sub 3} are topological insulators, while Sb{sub 2}Se{sub 3} is not. In particular, Bi{sub 2}Se{sub 3} has a topologically non-trivial energy gap of 0.3eV , suitable for room temperature applications. We present a simple and unified continuum model which captures the salient topological features of this class of materials. These topological insulators have robust surface states consisting of a single Dirac cone at the {Lambda} point.

  19. Permanent Closure of the TAN-664 Underground Storage Tank

    SciTech Connect (OSTI)

    Bradley K. Griffith

    2011-12-01T23:59:59.000Z

    This closure package documents the site assessment and permanent closure of the TAN-664 gasoline underground storage tank in accordance with the regulatory requirements established in 40 CFR 280.71, 'Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks: Out-of-Service UST Systems and Closure.'

  20. Apparatus and method for detecting leaks in piping

    DOE Patents [OSTI]

    Trapp, Donald J. (Aiken, SC)

    1994-01-01T23:59:59.000Z

    A method and device for detecting the location of leaks along a wall or piping system, preferably in double-walled piping. The apparatus comprises a sniffer probe, a rigid cord such as a length of tube attached to the probe on one end and extending out of the piping with the other end, a source of pressurized air and a source of helium. The method comprises guiding the sniffer probe into the inner pipe to its distal end, purging the inner pipe with pressurized air, filling the annulus defined between the inner and outer pipe with helium, and then detecting the presence of helium within the inner pipe with the probe as is pulled back through the inner pipe. The length of the tube at the point where a leak is detected determines the location of the leak in the pipe.

  1. Apparatus and method for detecting leaks in piping

    DOE Patents [OSTI]

    Trapp, D.J.

    1994-12-27T23:59:59.000Z

    A method and device are disclosed for detecting the location of leaks along a wall or piping system, preferably in double-walled piping. The apparatus comprises a sniffer probe, a rigid cord such as a length of tube attached to the probe on one end and extending out of the piping with the other end, a source of pressurized air and a source of helium. The method comprises guiding the sniffer probe into the inner pipe to its distal end, purging the inner pipe with pressurized air, filling the annulus defined between the inner and outer pipe with helium, and then detecting the presence of helium within the inner pipe with the probe as is pulled back through the inner pipe. The length of the tube at the point where a leak is detected determines the location of the leak in the pipe. 2 figures.

  2. Floating insulated conductors for heating subsurface formations

    DOE Patents [OSTI]

    Burns, David; Goodwin, Charles R.

    2014-07-29T23:59:59.000Z

    A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.

  3. T-Duality of Topological Insulators

    E-Print Network [OSTI]

    Varghese Mathai; Guo Chuan Thiang

    2015-04-08T23:59:59.000Z

    Topological insulators and D-brane charges in string theory can both be classified by the same family of groups. In this letter, we extend this connection via a geometric transform, giving a novel duality of topological insulators which can be viewed as a condensed matter analog of T-duality in string theory. For 2D Chern insulators, this duality exchanges the rank and Chern number of the valence bands.

  4. Heat pipes for use in a magnetic field

    DOE Patents [OSTI]

    Werner, R.W.; Hoffman, M.A.

    1983-07-19T23:59:59.000Z

    A heat pipe configuration for use in a magnetic field environment of a fusion reactor is disclosed. Heat pipes for operation in a magnetic field when liquid metal working fluids are used are optimized by flattening of the heat pipes having an unobstructed annulus which significantly reduces the adverse side region effect of the prior known cylindrically configured heat pipes. The flattened heat pipes operating in a magnetic field can remove 2--3 times the heat as a cylindrical heat pipe of the same cross sectional area. 4 figs.

  5. Building America Expert Meeting: Interior Insulation Retrofit...

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

    Building Science Corporation team held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011, at the Westford Regency Hotel in...

  6. Farmers RECC- Residential Insulation Rebate Program

    Broader source: Energy.gov [DOE]

    The Farmers Rural Electric Cooperative (RECC) Button-Up Program provides free energy audits and rebates for insulation upgrades to its residential customers. Farmers RECC's energy advisor will...

  7. How Much Insulation is Too Much?

    Broader source: Energy.gov [DOE]

    This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question "How much insulation is too much?"

  8. Studies Bolster Promise of Topological Insulators

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

    Studies Bolster Promise of Topological Insulators Print A few years ago, a strange new material began to drive research in condensed-matter physics around the world. First...

  9. Issue 5: Optimizing High Levels of Insulation

    Broader source: Energy.gov [DOE]

    This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question "How much insulation is too much?"

  10. Modeling of pulsating heat pipes.

    SciTech Connect (OSTI)

    Givler, Richard C.; Martinez, Mario J.

    2009-08-01T23:59:59.000Z

    This report summarizes the results of a computer model that describes the behavior of pulsating heat pipes (PHP). The purpose of the project was to develop a highly efficient (as compared to the heat transfer capability of solid copper) thermal groundplane (TGP) using silicon carbide (SiC) as the substrate material and water as the working fluid. The objective of this project is to develop a multi-physics model for this complex phenomenon to assist with an understanding of how PHPs operate and to be able to understand how various parameters (geometry, fill ratio, materials, working fluid, etc.) affect its performance. The physical processes describing a PHP are highly coupled. Understanding its operation is further complicated by the non-equilibrium nature of the interplay between evaporation/condensation, bubble growth and collapse or coalescence, and the coupled response of the multiphase fluid dynamics among the different channels. A comprehensive theory of operation and design tools for PHPs is still an unrealized task. In the following we first analyze, in some detail, a simple model that has been proposed to describe PHP behavior. Although it includes fundamental features of a PHP, it also makes some assumptions to keep the model tractable. In an effort to improve on current modeling practice, we constructed a model for a PHP using some unique features available in FLOW-3D, version 9.2-3 (Flow Science, 2007). We believe that this flow modeling software retains more of the salient features of a PHP and thus, provides a closer representation of its behavior.

  11. Biological treatment of underground coal gasification wastewaters

    SciTech Connect (OSTI)

    Bryant, C.W. Jr.; Humenick, M.J.; Cawein, C.C.; Nolan, B.T. III

    1985-05-01T23:59:59.000Z

    Biotreatability studies using underground coal gasification (UCG) wastewaters were performed by the University of Arizona and the University of Wyoming. The University of Arizona researchers found that UCG condensate could be effectively treated by activated sludge, using feed wastewaters of up to 50% strength. Total organic carbon (TOC) and chemical oxygen demand (COD) removals approached 90% during this research. The University of Wyoming researchers found that solvent extraction and hot-gas stripping were effective pretreatments for undiluted UCG condensate and that addition of powdered activated carbon enhanced the biotreatment process. TOC and COD removals resulting from the combination of pretreatments and biotreatment were 91% and 95%, respectively. The yield, decay, and substrate removal rate coefficients were greater in the University of Wyoming study than in the University of Arizona study. This was possibly caused by removing bioinhibitory substances, such as ammonia, with pretreatment. 18 refs., 25 figs., 6 tabs.

  12. Rocky Mountain 1 Underground Coal Gasification Project

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    The Rocky Mountain 1 Underground Coal Gasification Test or Burn was conducted from approximately mid-November, 1987 through February, 1988. After the burn the project began proceeding with the following overall tasks: venting, flushing and cooling of the cavities; subsurface or groundwater cleanup; post-burn coring and drilling; groundwater monitoring, and site restoration/reclamation. By the beginning of 1991 field activities associated with venting, flushing and cooling of the cavities and post-burn coring and drilling had been completed. However, data analysis continued including the University of North Dakota analyzing drilling and coring data, and the US Department of Energy (DOE)/EG G developing a chronological listing of project events.

  13. The Large Underground Xenon (LUX) Experiment

    E-Print Network [OSTI]

    D. S. Akerib; X. Bai; S. Bedikian; E. Bernard; A. Bernstein; A. Bolozdynya; A. Bradley; D. Byram; S. B. Cahn; C. Camp; M. C. Carmona-Benitez; D. Carr; J. J. Chapman; A. Chiller; C. Chiller; K. Clark; T. Classen; T. Coffey; A. Curioni; E. Dahl; S. Dazeley; L. de Viveiros; A. Dobi; E. Dragowsky; E. Druszkiewicz; B. Edwards; C. H. Faham; S. Fiorucci; R. J. Gaitskell; K. R. Gibson; M. Gilchriese; C. Hall; M. Hanhardt; B. Holbrook; M. Ihm; R. G. Jacobsen; L. Kastens; K. Kazkaz; R. Knoche; S. Kyre; J. Kwong; R. Lander; N. A. Larsen; C. Lee; D. S. Leonard; K. T. Lesko; A. Lindote; M. I. Lopes; A. Lyashenko; D. C. Malling; R. Mannino; Z. Marquez; D. N. McKinsey; D. -M. Mei; J. Mock; M. Moongweluwan; M. Morii; H. Nelson; F. Neves; J. A. Nikkel; M. Pangilinan; P. D. Parker; E. K. Pease; K. Pech; P. Phelps; A. Rodionov; P. Roberts; A. Shei; T. Shutt; C. Silva; W. Skulski; V. N. Solovov; C. J. Sofka; P. Sorensen; J. Spaans; T. Stiegler; D. Stolp; R. Svoboda; M. Sweany; M. Szydagis; D. Taylor; J. Thomson; M. Tripathi; S. Uvarov; J. R. Verbus; N. Walsh; R. Webb; D. White; J. T. White; T. J. Whitis; M. Wlasenko; F. L. H. Wolfs; M. Woods; C. Zhang

    2012-11-21T23:59:59.000Z

    The Large Underground Xenon (LUX) collaboration has designed and constructed a dual-phase xenon detector, in order to conduct a search for Weakly Interacting Massive Particles(WIMPs), a leading dark matter candidate. The goal of the LUX detector is to clearly detect (or exclude) WIMPS with a spin independent cross section per nucleon of $2\\times 10^{-46}$ cm$^{2}$, equivalent to $\\sim$1 event/100 kg/month in the inner 100-kg fiducial volume (FV) of the 370-kg detector. The overall background goals are set to have $<$1 background events characterized as possible WIMPs in the FV in 300 days of running. This paper describes the design and construction of the LUX detector.

  14. The Large Underground Xenon (LUX) Experiment

    E-Print Network [OSTI]

    Akerib, D S; Bedikian, S; Bernard, E; Bernstein, A; Bolozdynya, A; Bradley, A; Byram, D; Cahn, S B; Camp, C; Carmona-Benitez, M C; Carr, D; Chapman, J J; Chiller, A; Chiller, C; Clark, K; Classen, T; Coffey, T; Curioni, A; Dahl, E; Dazeley, S; de Viveiros, L; Dobi, A; Dragowsky, E; Druszkiewicz, E; Edwards, B; Faham, C H; Fiorucci, S; Gaitskell, R J; Gibson, K R; Gilchriese, M; Hall, C; Hanhardt, M; Holbrook, B; Ihm, M; Jacobsen, R G; Kastens, L; Kazkaz, K; Knoche, R; Kyre, S; Kwong, J; Lander, R; Larsen, N A; Lee, C; Leonard, D S; Lesko, K T; Lindote, A; Lopes, M I; Lyashenko, A; Malling, D C; Mannino, R; Marquez, Z; McKinsey, D N; Mei, D -M; Mock, J; Moongweluwan, M; Morii, M; Nelson, H; Neves, F; Nikkel, J A; Pangilinan, M; Parker, P D; Pease, E K; Pech, K; Phelps, P; Rodionov, A; Roberts, P; Shei, A; Shutt, T; Silva, C; Skulski, W; Solovov, V N; Sofka, C J; Sorensen, P; Spaans, J; Stiegler, T; Stolp, D; Svoboda, R; Sweany, M; Szydagis, M; Taylor, D; Thomson, J; Tripathi, M; Uvarov, S; Verbus, J R; Walsh, N; Webb, R; White, D; White, J T; Whitis, T J; Wlasenko, M; Wolfs, F L H; Woods, M; Zhang, C

    2012-01-01T23:59:59.000Z

    The Large Underground Xenon (LUX) collaboration has designed and constructed a dual-phase xenon detector, in order to conduct a search for Weakly Interacting Massive Particles(WIMPs), a leading dark matter candidate. The goal of the LUX detector is to clearly detect (or exclude) WIMPS with a spin independent cross section per nucleon of $2\\times 10^{-46}$ cm$^{2}$, equivalent to $\\sim$1 event/100 kg/month in the inner 100-kg fiducial volume (FV) of the 370-kg detector. The overall background goals are set to have $<$1 background events characterized as possible WIMPs in the FV in 300 days of running. This paper describes the design and construction of the LUX detector.

  15. Flow characteristics in underground coal gasification

    SciTech Connect (OSTI)

    Chang, H.L.; Himmelblau, D.M.; Edgar, T.F.

    1982-01-01T23:59:59.000Z

    During the Hoe Creek No. 2 (Wyoming) underground-coal-gasification field test, researchers introduced helium pulses to characterize the flow field and to estimate the coefficients in dispersion models of the flow. Flow models such as the axial-dispersion and parallel tanks-in-series models allowed interpretation of the in situ combustion flow field from the residence time distribution of the tracer gas. A quantitative analysis of the Hoe Creek tracer response curves revealed an increasing departure from a plug-flow regime with time, which was due to the combined effects of the free and forced convection in addition to the complex nonuniformity of the flow field. The Peclet number was a function of temperature, pressure, gas recovery, and characteristic velocity, as well as the split of the gas between the parallel streams in the model.

  16. The inspection of a radiologically contaminated pipeline using a teleoperated pipe crawler

    SciTech Connect (OSTI)

    Fogle, R.F.; Kuelske, K.; Kellner, R.A.

    1995-08-01T23:59:59.000Z

    In the 1950s, the Savannah River Site built an open, unlined retention basin to temporarily store potentially radionuclide contaminated cooling water from a chemical separations process and storm water drainage from a nearby waste management facility that stored large quantities of nuclear fission byproducts in carbon steel tanks. The retention basin was retired from service in 1972 when a new, lined basin was completed. In 1978, the old retention basin was excavated, backfilled with uncontaminated dirt, and covered with grass. At the same time, much of the underground process pipeline leading to the basin was abandoned. Since the closure of the retention basin, new environmental regulations require that the basin undergo further assessment to determine whether additional remediation is required. A visual and radiological inspection of the pipeline was necessary to aid in the remediation decision making process for the retention basin system. A teleoperated pipe crawler inspection system was developed to survey the abandoned sections of underground pipelines leading to the retired retention basin. This paper will describe the background to this project, the scope of the investigation, the equipment requirements, and the results of the pipeline inspection.

  17. Surface effects of underground nuclear explosions

    SciTech Connect (OSTI)

    Allen, B.M.; Drellack, S.L. Jr.; Townsend, M.J.

    1997-06-01T23:59:59.000Z

    The effects of nuclear explosions have been observed and studied since the first nuclear test (code named Trinity) on July 16, 1945. Since that first detonation, 1,053 nuclear tests have been conducted by the US, most of which were sited underground at the Nevada Test Site (NTS). The effects of underground nuclear explosions (UNEs) on their surroundings have long been the object of much interest and study, especially for containment, engineering, and treaty verification purposes. One aspect of these explosion-induced phenomena is the disruption or alteration of the near-surface environment, also known as surface effects. This report was prepared at the request of the Los Alamos National Laboratory (LANL), to bring together, correlate, and preserve information and techniques used in the recognition and documentation of surface effects of UNEs. This report has several main sections, including pertinent background information (Section 2.0), descriptions of the different types of surface effects (Section 3.0), discussion of their application and limitations (Section 4.0), an extensive bibliography and glossary (Section 6.0 and Appendix A), and procedures used to document geologic surface effects at the NTS (Appendix C). Because a majority of US surface-effects experience is from the NTS, an overview of pertinent NTS-specific information also is provided in Appendix B. It is not within the scope of this report to explore new relationships among test parameters, physiographic setting, and the types or degree of manifestation of surface effects, but rather to compile, summarize, and capture surface-effects observations and interpretations, as well as documentation procedures and the rationale behind them.

  18. Wiener filtering with a seismic underground array at the Sanford Underground Research Facility

    E-Print Network [OSTI]

    Michael Coughlin; Jan Harms; Nelson Christensen; Vladimir Dergachev; Riccardo DeSalvo; Shivaraj Kandhasamy; Vuk Mandic

    2014-08-19T23:59:59.000Z

    A seismic array has been deployed at the Sanford Underground Research Facility in the former Homestake mine, South Dakota, to study the underground seismic environment. This includes exploring the advantages of constructing a third-generation gravitational-wave detector underground. A major noise source for these detectors would be Newtonian noise, which is induced by fluctuations in the local gravitational field. The hope is that a combination of a low-noise seismic environment and coherent noise subtraction using seismometers in the vicinity of the detector could suppress the Newtonian noise to below the projected noise floor for future gravitational-wave detectors. In this paper, we use Wiener filtering techniques to subtract coherent noise in a seismic array in the frequency band 0.05 -- 1\\,Hz. This achieves more than an order of magnitude noise cancellation over a majority of this band. We show how this subtraction would benefit proposed future low-frequency gravitational wave detectors. The variation in the Wiener filter coefficients over the course of the day, including how local activities impact the filter, is analyzed. We also study the variation in coefficients over the course of a month, showing the stability of the filter with time. How varying the filter order affects the subtraction performance is also explored. It is shown that optimizing filter order can significantly improve subtraction of seismic noise, which gives hope for future gravitational-wave detectors to address Newtonian noise.

  19. On Holographic Insulators and Supersolids

    E-Print Network [OSTI]

    Kiritsis, Elias

    2015-01-01T23:59:59.000Z

    We obtain holographic realisations for systems that have strong similarities to Mott insulators and supersolids, after examining the ground states of Einstein-Maxwell-scalar systems. The real part of the AC conductivity has a hard gap and a discrete spectrum only. We add momentum dissipation to resolve the delta function in the conductivity due to translational invariance. We develop tools to directly calculate the Drude weight for a large class of solutions and to support our claims. Numerical RG flows are also constructed to verify that such saddle points are IR fixed points of asymptotically AdS_4 geometries.

  20. Fully synthetic taped insulation cables

    DOE Patents [OSTI]

    Forsyth, E.B.; Muller, A.C.

    1983-07-15T23:59:59.000Z

    The present invention is a cable which, although constructed from inexpensive polyolefin tapes and using typical impregnating oils, furnishes high voltage capability up to 765 kV, and has such excellent dielectric characteristics and heat transfer properties that it is capable of operation at capacities equal to or higher than presently available cables at a given voltage. This is accomplished by using polyethylene, polybutene or polypropylene insulating tape which has been specially processed to attain properties which are not generally found in these materials, but are required for their use in impregnated electrical cables. Chief among these properties is compatibility with impregnating oil.

  1. Insulation Materials | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of BlytheDepartment ofEnergy1EnergyEnergy Insulate

  2. Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1,

    E-Print Network [OSTI]

    Sontag, Eduardo

    Modular cell biology: retroactivity and insulation Domitilla Del Vecchio1, *, Alexander J Ninfa2 a remarkable insulation property, due to the fast timescales of the phosphorylation and dephosphorylation: computational methods; metabolic and regulatory networks Keywords: feedback; insulation; modularity; singular

  3. Low-cost exterior insulation process and structure

    DOE Patents [OSTI]

    Vohra, Arun (Bethesda, MD)

    1999-01-01T23:59:59.000Z

    A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value.

  4. Topological insulators of bosons/spins T. Senthil (MIT)

    E-Print Network [OSTI]

    Topological insulators of bosons/spins T. Senthil (MIT) Thanks: X.-G.Wen, M.P.A. Fisher Trivial phases Eg: Band insulators, superfluids, antiferromagnets, ......... Gapped `topologically ordered phases Eg: Band insulators, superfluids, antiferromagnets, ......... Gapped `topologically ordered

  5. Classification and characterization of topological insulators and superconductors

    E-Print Network [OSTI]

    Mong, Roger

    2012-01-01T23:59:59.000Z

    Antiferromagnetic topological insulators 5.1 Z 2 topological1.3 Topological insulators in 3D . . . . . . . . . . . . .1.3.1 Strong topological insulators (STI) . . . . . 1.3.2

  6. Widespread spin polarizationeffects in photoemission from topological insulators

    E-Print Network [OSTI]

    Jozwiak, C.

    2012-01-01T23:59:59.000Z

    photoemission from topological insulators C. Jozwiak, 1, ?approach in the 3D topological insulators. [1] D. Hsieh, D.three-dimensional topological insulator Bi 2 Se 3 using a

  7. Low-cost exterior insulation process and structure

    DOE Patents [OSTI]

    Vohra, A.

    1999-03-02T23:59:59.000Z

    A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value. 2 figs.

  8. Underground reactor containments: An option for the future?

    SciTech Connect (OSTI)

    Forsberg, C.W. [Oak Ridge National Lab., TN (United States). Chemical Technology Div.; Kress, T.

    1997-02-18T23:59:59.000Z

    Changing world conditions and changing technologies suggest that serious consideration should be given to siting of nuclear power plants underground. Underground siting is not a new concept. Multiple research reactors, several weapons production reactors, and one power reactor have been built underground. What is new are the technologies and incentives that may now make underground siting a preferred option. The conditions and technologies, along with their implications, are discussed herein. Underground containments can be constructed in mined cavities or pits that are then backfilled with thick layers of rock and soil. Conventional above-ground containments resist assaults and accidents because of the strength of their construction materials and the effectiveness of their safety features that are engineered to reduce loads. However, underground containments can provide even more resistance to assaults and accidents because of the inertia of the mass of materials over the reactor. High-technology weapons or some internal accidents can cause existing strong-material containments to fail, but only very-high energy releases can move large inertial masses associated with underground containments. New methods of isolation may provide a higher confidence in isolation that is independent of operator action.

  9. Corrugated Pipe as a Beam Dechirper

    SciTech Connect (OSTI)

    Bane, K.L.F.; Stupakov, G.; /SLAC

    2012-04-20T23:59:59.000Z

    We have studied the use of a metallic pipe with small corrugations for the purpose of passively dechirping, through its wakefield, a short, intense electron bunch. The corrugated pipe is attractive for this purpose because its wake: (i) has near maximal possible amplitude for a given aperture and (ii) has a relatively large oscillation wave length, even when the aperture is small. We showed how the corrugated structure can satisfy dechirping requirements encountered in the NGLS project at LBNL. We found that a linear chirp of -40 MeV/mm can be induced by an NGLS-like beam, by having it pass through a corrugated, metallic pipe of radius 3 mm, length 8.2 m, and corrugation parameters full depth 450 {mu}m and period 1000 {mu}m. This structure is about 15 times as effective in the role of dechirper as an S-band accelerator structure used passively.

  10. Heat Pipe Technology for Energy Conservation in the Process Industry 

    E-Print Network [OSTI]

    Price, B. L. Jr.

    1985-01-01T23:59:59.000Z

    Many applications for heat pipe technology have emerged in the relatively short time this technology has been known. Heat pipes incorporated in heat exchangers have been used in tens of thousands of successful heat recovery systems. These systems...

  11. Smoothing of pipe system completion processes in a shipyard environment/

    E-Print Network [OSTI]

    Zojwalla, Shaheen J. (Shaheen Joyab), 1977-

    2004-01-01T23:59:59.000Z

    Due to a number of different production issues, the manufacture of template pipes is often delayed. These delays hold up pipe system completion on board the ships in production and can delay payments from the Ministry of ...

  12. The Advantages of HDPE Piping & Vaults in the

    E-Print Network [OSTI]

    First in the world to produce 1600mm PE pipes Production of district heating pipes starts 1984 & telecom · Waste water treatment · House drainage · Under ground ventilation · Renovation · District heating & cooling · Special constructions · Marine intakes and outfalls · Welding, extrusion and blown

  13. On-Site Wastewater Treatment Systems: Gravel-less Pipe

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2000-04-10T23:59:59.000Z

    Gravel-less pipe systems distribute treated wastewater into the soil. This publication lists the advantages and disadvantages of gravel-less pipe systems, explains how to maintain them and gives estimates of costs....

  14. Mass balances for underground coal gasification in steeply dipping beds

    SciTech Connect (OSTI)

    Lindeman, R.; Ahner, P.; Davis, B.E.

    1980-01-01T23:59:59.000Z

    Two different mass balances were used during the recent underground coal gasification tests conducted in steeply dipping coal beds at Rawlins, Wyoming. The combination of both mass balances proved extremely useful in interpreting the test results. One mass balance which assumed char could be formed underground required the solution of 3 simultaneous equations. The assumption of no char decouples the 3 equations in the other mass balance. Both mass balance results are compared to the test data to provide an interpretation of the underground process.

  15. Underground nuclear energy complexes - technical and economic advantages

    SciTech Connect (OSTI)

    Myers, Carl W [Los Alamos National Laboratory; Kunze, Jay F [IDAHO STATE UNIV; Giraud, Kellen M [BABECOCK AND WILCOX; Mahar, James M [IDAHO STATE UNIV

    2010-01-01T23:59:59.000Z

    Underground nuclear power plant parks have been projected to be economically feasible compared to above ground instalIations. This paper includes a thorough cost analysis of the savings, compared to above ground facilities, resulting from in-place entombment (decommissioning) of facilities at the end of their life. reduced costs of security for the lifetime of the various facilities in the underground park. reduced transportation costs. and reduced costs in the operation of the waste storage complex (also underground). compared to the fair share of the costs of operating a national waste repository.

  16. Muon simulation codes MUSIC and MUSUN for underground physics

    E-Print Network [OSTI]

    V. A. Kudryavtsev

    2008-10-25T23:59:59.000Z

    The paper describes two Monte Carlo codes dedicated to muon simulations: MUSIC (MUon SImulation Code) and MUSUN (MUon Simulations UNderground). MUSIC is a package for muon transport through matter. It is particularly useful for propagating muons through large thickness of rock or water, for instance from the surface down to underground/underwater laboratory. MUSUN is designed to use the results of muon transport through rock/water to generate muons in or around underground laboratory taking into account their energy spectrum and angular distribution.

  17. Charge and spin topological insulators

    SciTech Connect (OSTI)

    Kopaev, Yu. V., E-mail: kopaev@sci.lebedev.ru; Gorbatsevich, A. A.; Belyavskii, V. I. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

    2011-09-15T23:59:59.000Z

    The topologically nontrivial states of matter-charge and spin topological insulators, which exhibit, respectively, properties of the integer quantum Hall effect and the quantum spin Hall effect-are discussed. The topological characteristics (invariant with respect to weak adiabatic changes in the Hamiltonian parameters) which lead to such states are considered. The model of a 2D hexagonal lattice having symmetries broken with respect to time reversal and spatial inversion which was proposed by Haldane and marked the beginning of unprecedented activity in the study of topologically nontrivial states is discussed. This model relates the microscopic nature of the symmetry breaking with respect to the time reversal to the occurrence of spontaneous orbital currents which circulate within a unit cell. Such currents become zero upon summation over the unit cell, but they may form spreading current states at the surface which are similar to the edge current states under the quantum Hall effect. The first model of spontaneous currents (exciton insulator model) is considered, and the possibility of implementing new topologically nontrivial states in this model is discussed.

  18. High performance phenolic piping for oilfield applications

    SciTech Connect (OSTI)

    Folkers, J.L. [Ameron International, Burkburnett, TX (United States); Friedrich, R.S.; Fortune, M. [Ameron International, South Gate, CA (United States)

    1997-08-01T23:59:59.000Z

    The performance advantages of phenolic resins have been enticing for composites manufacturers and users for many years. The use of these materials has been limited, however, by the process, handling and assembly difficulties they present. This paper introduces an innovative modification which has allowed the development of a filament wound piping system for oilfield applications which previously had been beyond the performance envelope of fiberglass pipe. Improvement in temperature resistance and response to steam exposure, as compared to conventional epoxy products, are of particular benefit. Fabrication innovations are also included which can be used where impact resistance or fire performance are needed.

  19. Uniform insulation applied-B ion diode

    DOE Patents [OSTI]

    Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

    1988-01-01T23:59:59.000Z

    An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

  20. Kingspan Insulated Panels: Order (2013-CE-5353)

    Broader source: Energy.gov [DOE]

    DOE ordered Kingspan Insulated Panels, Inc. to pay a $8,000 civil penalty after finding Kingspan Insulated Panels had failed to certify that any basic models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

  1. Heat Pipe Technology for Energy Conservation in the Process Industry

    E-Print Network [OSTI]

    Price, B. L. Jr.

    HEAT PIPE TECHNOLOGY FOR ENERGY CONSERVATION IN THE PROCESS INDUSTRY Berwin L. Price. Jr. Q-dot Corporation Garland. Texas ABSTRACT Many applications for heat pipe technology have emerged in the relatively short time this technology has been... and utility industries. The heat pipe offers a unique. efficient heat transfer device that can recover valuable thermal energy resulting in reduced equipment and operating costs. Q-dot is the world leader in heat pipe technology and we have applied our...

  2. GLOBAL OPTIMIZATION OF PIPE NETWORKS BY THE INTERVAL ...

    E-Print Network [OSTI]

    2011-11-20T23:59:59.000Z

    GLOBAL OPTIMIZATION OF PIPE NETWORKS. BY THE INTERVAL ANALYSIS APPROACH: THE BELGIUM NETWORK CASE. J. FRÉDÉRIC BONNANS ...

  3. Surprising Control over Photoelectrons from a Topological Insulator

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

    Surprising Control over Photoelectrons from a Topological Insulator Surprising Control over Photoelectrons from a Topological Insulator Print Tuesday, 12 March 2013 00:00...

  4. Graphene physics and insulator-metal transition in compressed...

    Office of Scientific and Technical Information (OSTI)

    Graphene physics and insulator-metal transition in compressed hydrogen Citation Details Title: Graphene physics and insulator-metal transition in compressed hydrogen Authors:...

  5. Materials - Next-generation insulation ... | ornl.gov

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

    Materials - Next-generation insulation ... A composite foam insulation panel being developed by Oak Ridge National Laboratory and partners could reduce wall-generated heating and...

  6. Exterior Rigid Insulation Best Practices - Building America Top...

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

    Exterior Rigid Insulation Best Practices - Building America Top Innovation Exterior Rigid Insulation Best Practices - Building America Top Innovation Effec guid-exterior rigid...

  7. Building America Expert Meeting Report: Interior Insulation Retrofit...

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

    Interior Insulation Retrofit of Mass Masonry Wall Assembliesessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce...

  8. Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation

    E-Print Network [OSTI]

    Walker, Iain

    2001-01-01T23:59:59.000Z

    Location, Air Leakage and Insulation Iain S. Walker Energy4 Duct Insulation, Location and Leakageinsulation

  9. ITER Central Solenoid Coil Insulation Qualification

    SciTech Connect (OSTI)

    Martovetsky, Nicolai N [ORNL] [ORNL; Mann Jr, Thomas Latta [ORNL] [ORNL; Miller, John L [ORNL] [ORNL; Freudenberg, Kevin D [ORNL] [ORNL; Reed, Richard P [Cryogenic Materials, Inc.] [Cryogenic Materials, Inc.; Walsh, Robert P [Florida State University] [Florida State University; McColskey, J D [National Institute of Standards and Technology (NIST), Boulder] [National Institute of Standards and Technology (NIST), Boulder; Evans, D [Advanced Cryogenic Materials] [Advanced Cryogenic Materials

    2010-01-01T23:59:59.000Z

    An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4x4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

  10. ITER CENTRAL SOLENOID COIL INSULATION QUALIFICATION

    SciTech Connect (OSTI)

    Martovetsky, N N; Mann, T L; Miller, J R; Freudenberg, K D; Reed, R P; Walsh, R P; McColskey, J D; Evans, D

    2009-06-11T23:59:59.000Z

    An insulation system for ITER Central Solenoid must have sufficiently high electrical and structural strength. Design efforts to bring stresses in the turn and layer insulation within allowables failed. It turned out to be impossible to eliminate high local tensile stresses in the winding pack. When high local stresses can not be designed out, the qualification procedure requires verification of the acceptable structural and electrical strength by testing. We built two 4 x 4 arrays of the conductor jacket with two options of the CS insulation and subjected the arrays to 1.2 million compressive cycles at 60 MPa and at 76 K. Such conditions simulated stresses in the CS insulation. We performed voltage withstand tests and after end of cycling we measured the breakdown voltages between in the arrays. After that we dissectioned the arrays and studied micro cracks in the insulation. We report details of the specimens preparation, test procedures and test results.

  11. DRIVEN PIPE PILES IN DENSE SAND BYRON BYRNE

    E-Print Network [OSTI]

    Byrne, Byron

    DRIVEN PIPE PILES IN DENSE SAND BYRON BYRNE GEOMECHANICS GROUP THE UNIVERSITY OF WESTERN AUSTRALIA #12;Driven Pipe Piles in Dense Sand Byron Byrne Geomechanics Group The University of Western Australia #12;Driven Pipe Piles in Dense Sand Byron Byrne Geomechanics Group The University of Western Australia

  12. Thermally Enhanced Pipe for Geothermal Applications Stphane Gonthier

    E-Print Network [OSTI]

    in St-Lazare, QC, Canada · Leaders in Pipe and Tubing in Niche Markets · Over 30 years of experienceThermally Enhanced Pipe for Geothermal Applications Stéphane Gonthier Président ­ Versaprofiles Inc pipe and profile extrusion · Markets ­ Geothermal ­ Potable Water Distribution ­ Maple Sap Collection

  13. ANALYSIS OF METHANE PRODUCING COMMUNITIES WITHIN UNDERGROUND COAL BEDS

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    ANALYSIS OF METHANE PRODUCING COMMUNITIES WITHIN UNDERGROUND COAL BEDS by Elliott Paul Barnhart.........................................................................................8 Coal and Metabolite Enrichment Studies ..................................................................................14 Ability of the Consortium to Produce Methane from Coal and Metabolites ................16

  14. Underground barrier construction apparatus with soil-retaining shield

    DOE Patents [OSTI]

    Gardner, Bradley M. (Idaho Falls, ID); Smith, Ann Marie (Pocatello, ID); Hanson, Richard W. (Spokane, WA); Hodges, Richard T. (Deer Park, WA)

    1998-01-01T23:59:59.000Z

    An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment.

  15. Underground barrier construction apparatus with soil-retaining shield

    DOE Patents [OSTI]

    Gardner, B.M.; Smith, A.M.; Hanson, R.W.; Hodges, R.T.

    1998-08-04T23:59:59.000Z

    An apparatus is described for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment. 17 figs.

  16. advanced underground vehicle: Topics by E-print Network

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

    and radiogenic 40Ar production in situ and from external sources, we can derive the ratio of 39Ar to 40Ar in underground sources. We show for the first time that...

  17. aging underground reinforced: Topics by E-print Network

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

    and geo-neutrinos, and perform exotic searches, with a 20 kiloton liquid scintillator detector of unprecedented 3% energy resolution (at 1 MeV) at 700-meter deep underground...

  18. ,"New Mexico Natural Gas Underground Storage Net Withdrawals...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"3292015 10:08:54 PM" "Back to Contents","Data 1: New Mexico Natural Gas Underground Storage Net Withdrawals (MMcf)" "Sourcekey","N5070NM2"...

  19. amchitka underground nuclear: Topics by E-print Network

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

    searches, with a 20 kiloton liquid scintillator detector of unprecedented 3% energy resolution (at 1 MeV) at 700-meter deep underground and to have other rich scientific...

  20. HEAT TRANSFER IN UNDERGROUND HEATING EXPERIMENTS IN GRANITE, STRIPA, SWEDEN

    E-Print Network [OSTI]

    Chan, T.

    2010-01-01T23:59:59.000Z

    Session on Heat Transfer in Nuclear Waste Disposal, C'.heat transfer processes associated with underground nuclear wasteheat transfer and related processes in an un­ derground environment similar to that expected in a mined nuclear waste

  1. Nevada National Security Site Underground Test Area (UGTA) Flow...

    Office of Environmental Management (EM)

    December 12, 2014 To view all the P&RA CoP 2014 Technical Exchange Meeting videos click here. Video Presentation Nevada National Security Site Underground Test Area...

  2. ,"New York Natural Gas Underground Storage Capacity (MMcf)"

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"2262015 9:17:17 AM" "Back to Contents","Data 1: New York Natural Gas Underground Storage Capacity (MMcf)" "Sourcekey","N5290NY2"...

  3. ,"New York Natural Gas Underground Storage Withdrawals (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"2262015 9:16:28 AM" "Back to Contents","Data 1: New York Natural Gas Underground Storage Withdrawals (MMcf)" "Sourcekey","N5060NY2"...

  4. ,"New York Natural Gas Underground Storage Net Withdrawals (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"2262015 9:16:55 AM" "Back to Contents","Data 1: New York Natural Gas Underground Storage Net Withdrawals (MMcf)" "Sourcekey","N5070NY2"...

  5. ,"New York Natural Gas Underground Storage Withdrawals (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"2262015 9:16:27 AM" "Back to Contents","Data 1: New York Natural Gas Underground Storage Withdrawals (MMcf)" "Sourcekey","N5060NY2"...

  6. Underground Storage of Natural Gas and Liquefied Petroleum Gas (Nebraska)

    Broader source: Energy.gov [DOE]

    This statute declares underground storage of natural gas and liquefied petroleum gas to be in the public interest if it promotes the conservation of natural gas and permits the accumulation of...

  7. Georgia Underground Gas Storage Act of 1972 (Georgia)

    Broader source: Energy.gov [DOE]

    The Georgia Underground Gas Storage Act, which permits the building of reserves for withdrawal in periods of peak demand, was created to promote the economic development of the State of Georgia and...

  8. Underground-Energy-Storage Program, 1982 annual report

    SciTech Connect (OSTI)

    Kannberg, L.D.

    1983-06-01T23:59:59.000Z

    Two principal underground energy storage technologies are discussed--Seasonal Thermal Energy Storage (STES) and Compressed Air Energy Storage (CAES). The Underground Energy Storage Program objectives, approach, structure, and milestones are described, and technical activities and progress in the STES and CAES areas are summarized. STES activities include aquifer thermal energy storage technology studies and STES technology assessment and development. CAES activities include reservoir stability studies and second-generation concepts studies. (LEW)

  9. Methodology for evaluation of insulation-debris effects. Containment emergency sump performance-unresolved safety issue A-43

    SciTech Connect (OSTI)

    Wysocki, J.; Kolbe, R.

    1982-09-01T23:59:59.000Z

    The postulated failure of high energy piping within a light water reactor containment has raised safety questions related to the generation of insulation debris, the migration of such debris to the containment emergency sump screens and the potential for severe screen blockages. High, or total, screen blockages could result in impairment of the long term RHR recirculation systems. Debris considerations are an integral part of the unresolved Safety Issue A-43, Containment Emergency Sump Performance. This report develops calculational methods and debris transport models which can be used for estimating the quantities of debris that might be generated by a LOCA, the transport of such debris, methods for estimating screen blockages and attendant pressure losses. Five operating plants were analyzed using this debris evaluation methodology. These calculations show the dependency on plant containment layout, sump location and design, and types and quantities of insulation employed. 9 figures, 6 tables.

  10. Pipe viscometry of foams C. Enzendorfer

    E-Print Network [OSTI]

    Valkó, Peter

    of foams is usually characterized by the quality, r, defined as the ratio of the gas volume to the total,and quality was determined in pipes of five diameters. The flow curves showed a marked dependenceon foam volume. High-quality foams, above 93%-97% have the tendency to invert into mist. In a mist

  11. Passive ice freezing-releasing heat pipe

    DOE Patents [OSTI]

    Gorski, Anthony J. (Lemont, IL); Schertz, William W. (Batavia, IL)

    1982-01-01T23:59:59.000Z

    A heat pipe device has been developed which permits completely passive ice formation and periodic release of ice without requiring the ambient temperature to rise above the melting point of water. This passive design enables the maximum amount of cooling capacity to be stored in the tank.

  12. Program for large-scale underground-coal-gasification tests

    SciTech Connect (OSTI)

    Hammesfahr, F.W.; Winter, P.L.

    1982-11-01T23:59:59.000Z

    The continuing development of underground coal gasification technology requires extended multi-module field programs in which the output gas is linked to surface usage. This effort was to appraise whether existing surface facilities in the utility, petroleum refinery, or natural gas industries could be used to reduce the cost of such an extended multi-module test and whether regional demand in areas having underground coal gasification coal resources could support the manufacture of transportation fuels from underground coal gasification gases. To limit the effort to a reasonable level but yet to permit a fair test of the concept, effort was focused on five states, Illinois, New Mexico, Texas, Washington, and Wyoming, which have good underground coal gasification reserves. Studies of plant distribution located 25 potential sites within 3 miles of the underground coal gasification amenable reserves in the five states. Distribution was 44% to utilities, 44% to refineries, and 12% to gas processing facilities. The concept that existing surface facilities, currently or potentially gas-capable, might contribute to the development of underground coal gasification technology by providing a low cost industrial application for the gas produced in a multi-module test appears valid. To further test the concept, three industries were reviewed in depth. These were the electric utility, natural gas, and petroleum industries. When looking at a fuel substitution of the type proposed, each industry had its special perspective. These are discussed in detail in the report.

  13. LLNL Capabilities in Underground Coal Gasification

    SciTech Connect (OSTI)

    Friedmann, S J; Burton, E; Upadhye, R

    2006-06-07T23:59:59.000Z

    Underground coal gasification (UCG) has received renewed interest as a potential technology for producing hydrogen at a competitive price particularly in Europe and China. The Lawrence Livermore National Laboratory (LLNL) played a leading role in this field and continues to do so. It conducted UCG field tests in the nineteen-seventies and -eighties resulting in a number of publications culminating in a UCG model published in 1989. LLNL successfully employed the ''Controlled Retraction Injection Point'' (CRIP) method in some of the Rocky Mountain field tests near Hanna, Wyoming. This method, shown schematically in Fig.1, uses a horizontally-drilled lined injection well where the lining can be penetrated at different locations for injection of the O{sub 2}/steam mixture. The cavity in the coal seam therefore gets longer as the injection point is retracted as well as wider due to reaction of the coal wall with the hot gases. Rubble generated from the collapsing wall is an important mechanism studied by Britten and Thorsness.

  14. Underground storage of hydrocarbons in Ontario

    SciTech Connect (OSTI)

    Carter, T.R.; Manocha, J. [Ontario Ministry of Natural Resources, Ontario (Canada)

    1995-09-01T23:59:59.000Z

    The underground storage of natural gas and liquified petroleum products in geological formations is a provincially significant industry in Ontario with economic, environmental, and safety benefits for the companies and residents of Ontario. There are 21 active natural gas storage pools in Ontario, with a total working storage capacity of approximately 203 bcf (5.76 billion cubic metres). Most of these pools utilize former natural gas-producing Guelph Formation pinnacle reefs. In addition there are seventy-one solution-mined salt caverns utilized for storage capacity of 24 million barrels (3.9 million cubic metres). These caverns are constructed within salt strata of the Salina A-2 Unit and the B Unit. The steadily increasing demand for natural gas in Ontario creates a continuing need for additional storage capacity. Most of the known gas-producing pinnacle reefs in Ontario have already been converted to storage. The potential value of storage rights is a major incentive for continued exploration for undiscovered reefs in this mature play. There are numerous depleted or nearly depleted natural gas reservoirs of other types with potential for use as storage pools. There is also potential for use of solution-mined caverns for natural gas storage in Ontario.

  15. Glass produced by underground nuclear explosions. [Rainier

    SciTech Connect (OSTI)

    Schwartz, L.; Piwinskii, A.; Ryerson, F.; Tewes, H.; Beiriger, W.

    1983-01-01T23:59:59.000Z

    Detonation of an underground nuclear explosive produces a strong shock wave which propagates spherically outward, vaporizing the explosive and nearby rock and melting, the surrounding rock. The vaporized material expands adiabatically, forming a cavity. As the energy is dissipated during the cavity formation process, the explosive and rock debris condense and mix with the melted rock. The melt flows to the bottom of the cavity where it is quenched by fractured rock fragments falling from above as the cavity collapses. Measurements indicate that about 740 tonnes of rock and/or soil are melted for every kiloton (10/sup 12/ calories) of explosive energy, or about 25% of the explosive energy goes to melting rock. The resulting glass composition reflects the composition of the unaltered rock with explosive debris. The appearance ranges from white pumice to dense, dark lava. The bulk composition and color vary with the amount of explosive iron incorporated into the glass. The refractory explosion products are mixed with the solidified melt, although the degree of mixing is variable. Electron microprobe studies of glasses produced by Rainier in welded tuff have produced the following results: glasses are dehydrated relative to the host media, glasses are extremely heterogeneous on a 20 ..mu..m scale, a ubiquitous feature is the presence of dark marble-cake regions in the glass, which were locally enriched in iron and may be related to the debris, optically amorphous regions provide evidence of shock melting, only limited major element redistribution and homogenization occur within the cavity.

  16. Roof control strategies for underground coal mines

    SciTech Connect (OSTI)

    Smith, W.C. (Bureau of Mines, Denver, CO (United States))

    1993-01-01T23:59:59.000Z

    Roof support, an important aspect of ground control, involves maintaining roof competency to ensure a safe and efficient mining environment. Wide variability in rock quality and stress distributions requires a systematic approach to roof support design that satisfies specific goals. The success of past roof support in reducing the incidence of roof falls has been primarily attributed to safer roof bolting practices. However, roof falls continue to be the number one occupational hazard in underground coal mines. This US Bureau of Mines report presents a general overview of roof bolting and other roof support methods used in the United States. Characteristics of bad roof and associated roof failure theories are briefly presented as background to roof support. Methods of detecting and monitoring roof behavior and/or bolt performance provide essential feedback on roof support requirements. A discussion follows on roof bolt design that assimilates roof and support parameters into useful equations or nomographs to help decide what bolt types to use and how they should be installed under different roof conditions. 35 refs., 8 figs.

  17. Underground Muons in Super-KAMIOKANDE

    E-Print Network [OSTI]

    The Super-Kamiokande Collaboration; presented by J. G. Learned

    1997-05-24T23:59:59.000Z

    The largest underground neutrino observatory, Super-Kamiokande, located near Kamioka, Japan has been collecting data since April 1996. It is located at a depth of roughly 2.7 kmwe in a zinc mine under a mountain, and has an effective area for detecting entering-stopping and through-going muons of about $1238 m^2$ for muons of $>1.7 GeV$. These events are collected at a rate of 1.5 per day from the lower hemisphere of arrival directions, with 2.5 muons per second in the downgoing direction. We report preliminary results from 229 live days analyzed so far with respect to zenith angle variation of the upcoming muons. These results do not yet have enough statistical weight to discriminate between the favored hypothesis for muon neutrino oscillations and no-oscillations. We report on the search for astrophysical sources of neutrinos and high energy neutrino fluxes from the sun and earth center, as might arise from WIMP annihilations. None are found. We also present a topographical map of the overburden made from the downgoing muons. The detector is performing well, and with several years of data we should be able to make significant progress in this area.

  18. Automatic insulation resistance testing apparatus

    DOE Patents [OSTI]

    Wyant, Francis J.; Nowlen, Steven P.; Luker, Spencer M.

    2005-06-14T23:59:59.000Z

    An apparatus and method for automatic measurement of insulation resistances of a multi-conductor cable. In one embodiment of the invention, the apparatus comprises a power supply source, an input measuring means, an output measuring means, a plurality of input relay controlled contacts, a plurality of output relay controlled contacts, a relay controller and a computer. In another embodiment of the invention the apparatus comprises a power supply source, an input measuring means, an output measuring means, an input switching unit, an output switching unit and a control unit/data logger. Embodiments of the apparatus of the invention may also incorporate cable fire testing means. The apparatus and methods of the present invention use either voltage or current for input and output measured variables.

  19. Slab edge insulating form system and methods

    DOE Patents [OSTI]

    Lee, Brain E. (Corral de Tierra, CA); Barsun, Stephan K. (Davis, CA); Bourne, Richard C. (Davis, CA); Hoeschele, Marc A. (Davis, CA); Springer, David A. (Winters, CA)

    2009-10-06T23:59:59.000Z

    A method of forming an insulated concrete foundation is provided comprising constructing a foundation frame, the frame comprising an insulating form having an opening, inserting a pocket former into the opening; placing concrete inside the foundation frame; and removing the pocket former after the placed concrete has set, wherein the concrete forms a pocket in the placed concrete that is accessible through the opening. The method may further comprise sealing the opening by placing a sealing plug or sealing material in the opening. A system for forming an insulated concrete foundation is provided comprising a plurality of interconnected insulating forms, the insulating forms having a rigid outer member protecting and encasing an insulating material, and at least one gripping lip extending outwardly from the outer member to provide a pest barrier. At least one insulating form has an opening into which a removable pocket former is inserted. The system may also provide a tension anchor positioned in the pocket former and a tendon connected to the tension anchor.

  20. Excavationless Exterior Foundation Insulation Field Study

    SciTech Connect (OSTI)

    Schirber, T.; Mosiman, G.; Ojczyk, C.

    2014-10-01T23:59:59.000Z

    Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquid insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

  1. Pipe break frequency estimation for Nuclear Power Plants

    SciTech Connect (OSTI)

    Wright, R.E.; Steverson, J.A.; Zuroff, W.F.

    1987-05-01T23:59:59.000Z

    This study empirically develops frequencies of safety-significant pipe failures in commercial nuclear power plants (NPPs). Its primary purpose is to update the pipe break frequencies reported in the Reactor Safety Study, WASH-1400, which are used in many risk analyses. The study involved reviewing various data sources for actual piping failure events of significant magnitude. When extant in the documentation reviewed, information was extracted concerning conditional factors such as the system in which the failure occurred, operational mode of the plant, and size of the pipe involved to estimate conditional pipe break frequencies useful to risk analysts. Because of the high quality piping used in NPPs, there have been few significant pipe failures. An attempt was made to augment the analysis with synthetic data from a Delphi approach, but the wide uncertainty bounds on the resulting estimates rendered the results unsuitable for combining data.

  2. Modeling and analysis of water-hammer in coaxial pipes

    E-Print Network [OSTI]

    Cesana, Pierluigi

    2015-01-01T23:59:59.000Z

    The fluid-structure interaction is studied for a system composed of two coaxial pipes in an annular geometry, for both homogeneous isotropic metal pipes and fiber-reinforced (anisotropic) pipes. Multiple waves, traveling at different speeds and amplitudes, result when a projectile impacts on the water filling the annular space between the pipes. In the case of carbon fiber-reinforced plastic thin pipes we compute the wavespeeds, the fluid pressure and mechanical strains as functions of the fiber winding angle. This generalizes the single-pipe analysis of J. H. You, and K. Inaba, Fluid-structure interaction in water-filled pipes of anisotropic composite materials, J. Fl. Str. 36 (2013). Comparison with a set of experimental measurements seems to validate our models and predictions.

  3. Measure Guideline: Hybrid Foundation Insulation Retrofits

    SciTech Connect (OSTI)

    Ueno, K.; Lstiburek, J.

    2012-05-01T23:59:59.000Z

    This measure guideline provides recommendations for designs and variations for retrofit hybrid assemblies in improving interior foundation insulation and water management of basements. Variations include closed cell spray foam (ccSPF) with membrane waterproofing or air gap membrane drainage layers, rigid board foam insulation at flat walls (cast concrete or CMU block), a 'partial drainage' detail making use of the bulk water drainage that occurs through the field of a rubble stone wall, and non-drained spray foam assemblies (including slab insulation).

  4. 1 Introduction 3 2 Topological insulators -Overview 5

    E-Print Network [OSTI]

    Johannesson, Henrik

    Contents 1 Introduction 3 2 Topological insulators - Overview 5 2.1 Introduction quantum spin Hall insulator . . . . . . . . . . . . . 7 2.4 Three dimensional topological insulator . . . . . . . . . . . . . . . . 9 3 Bulk band structure in a 2D spin orbit induced topological insulator 11 3.1 Introduction

  5. Viewing Systems for Large Underground Storage Tanks.

    SciTech Connect (OSTI)

    Heckendorn, F.M., Robinson, C.W., Anderson, E.K. [Westinghouse Savannah River Co., Aiken, SC (United States)], Pardini, A.F. [Westinghouse Hanford Co., Richland, WA (United States)

    1996-12-31T23:59:59.000Z

    Specialized remote video systems have been successfully developed and deployed in a number of large radiological Underground Storage Tanks (USTs)that tolerate the hostile tank interior, while providing high resolution video to a remotely located operator. The deployment is through 100 mm (4 in) tank openings, while incorporating full video functions of the camera, lights, and zoom lens. The usage of remote video minimizes the potential for personnel exposure to radiological and hazardous conditions, and maximizes the quality of the visual data used to assess the interior conditions of both tank and contents. The robustness of this type of remote system has a direct effect on the potential for radiological exposure that personnel may encounter. The USTs typical of the Savannah River and Hanford Department Of Energy - (DOE) sites are typically 4.5 million liter (1.2 million gal) units under earth. or concrete overburden with limited openings to the surface. The interior is both highly contaminated and radioactive with a wide variety of nuclear processing waste material. Some of the tanks are -flammable rated -to Class 1, Division 1,and personnel presence at or near the openings should be minimized. The interior of these USTs must be assessed periodically as part of the ongoing management of the tanks and as a step towards tank remediation. The systems are unique in their deployment technology, which virtually eliminates the potential for entrapment in a tank, and their ability to withstand flammable environments. A multiplicity of components used within a common packaging allow for cost effective and appropriate levels of technology, with radiation hardened components on some units and lesser requirements on other units. All units are completely self contained for video, zoom lens, lighting, deployment,as well as being self purging, and modular in construction.

  6. Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions

    E-Print Network [OSTI]

    Strained-Si-on-Insulator (SSOI) and SiGe-on-Insulator (SGOI): Fabrication Obstacles and Solutions-Si and SiGe-on-insulator were fabricated, combining both the benefits of high-mobility strained-Si and SOI) to oxidized handle wafers. Layer transfer onto insulating handle wafers can be accomplished using grind

  7. PHYSICAL REVIEW B 83, 165440 (2011) Electron interaction-driven insulating ground state in Bi2Se3 topological insulators

    E-Print Network [OSTI]

    Wang, Wei Hua

    2011-01-01T23:59:59.000Z

    topological insulators in the two-dimensional limit Minhao Liu,1 Cui-Zu Chang,1,2 Zuocheng Zhang,1 Yi Zhang,2 of ultrathin Bi2Se3 topological insulators with thickness from one quintuple layer to six quintuple layers that this unusual insulating ground state in the two-dimensional limit of topological insulators is induced

  8. Ultrathin Strained Si-on-Insulator and SiGe-on-Insulator Created using Low Temperature Wafer Bonding

    E-Print Network [OSTI]

    Ultrathin Strained Si-on-Insulator and SiGe-on-Insulator Created using Low Temperature Wafer, uniform thickness, low defect density, monocrystalline SiGe alloys and strained Si on any desired substrate was developed, allowing for the creation of SiGe-on-insulator and strained Si-on-insulator. After

  9. Nonlinear boundary value problem of magnetic insulation

    E-Print Network [OSTI]

    A. V. Sinitsyn

    2000-09-09T23:59:59.000Z

    On the basis of generalization of upper and lower solution method to the singular two point boundary value problems, the existence theorem of solutions for the system, which models a process of magnetic insulation in plasma is proved.

  10. Metal-insulator transition in holography

    E-Print Network [OSTI]

    Aristomenis Donos; Sean A. Hartnoll

    2013-01-19T23:59:59.000Z

    We exhibit an interaction-driven metal-insulator quantum phase transition in a holographic model. Use of a helical lattice enables us to break translation invariance while preserving homogeneity. The metallic phase is characterized by a sharp Drude peak and a d.c. resistivity that increases with temperature. In the insulating phase the Drude spectral weight is transferred into a `mid-infrared' peak and to energy scales of order the chemical potential. The d.c. resistivity now decreases with temperature. In the metallic phase, operators breaking translation invariance are irrelevant at low energy scales. In the insulating phase, translation symmetry breaking effects are present at low energies. We find the near horizon extremal geometry that captures the insulating physics.

  11. Phosphorylation based insulation devices design and implementation

    E-Print Network [OSTI]

    Rivera Ortiz, Phillip M. (Phillip Michael)

    2013-01-01T23:59:59.000Z

    This thesis presents the analysis of a phosphorylation based insulation device implemented in Saccharomyces cerevisae and the minimization of the retroactivity to the input and retroactivity to the output of a single cycle ...

  12. Install Removable Insulation on Valves and Fittings

    SciTech Connect (OSTI)

    Not Available

    2006-01-01T23:59:59.000Z

    This revised ITP tip sheet on installing removable insulation on valves and fittings provides how-to advice for improving the system using low-cost, proven practices and technologies.

  13. Saving Energy and Money with Aerogel Insulation

    Broader source: Energy.gov [DOE]

    The Energy Department is investing in an innovative insulation material that saves energy and money for industrial facilities while also helping to support 50 full-time clean energy jobs for Americans.

  14. KSI's Cross Insulated Core Transformer Technology

    SciTech Connect (OSTI)

    Uhmeyer, Uwe [Kaiser Systems, Inc, 126 Sohier Road, Beverly, MA 01915 (United States)

    2009-08-04T23:59:59.000Z

    Cross Insulated Core Transformer (CCT) technology improves on Insulated Core Transformer (ICT) implementations. ICT systems are widely used in very high voltage, high power, power supply systems. In an ICT transformer ferrite core sections are insulated from their neighboring ferrite cores. Flux leakage is present at each of these insulated gaps. The flux loss is raised to the power of stages in the ICT design causing output voltage efficiency to taper off with increasing stages. KSI's CCT technology utilizes a patented technique to compensate the flux loss at each stage of an ICT system. Design equations to calculate the flux compensation capacitor value are presented. CCT provides corona free operation of the HV stack. KSI's CCT based High Voltage power supply systems offer high efficiency operation, high frequency switching, low stored energy and smaller size over comparable ICT systems.

  15. Thermal conductivity of thermal-battery insulations

    SciTech Connect (OSTI)

    Guidotti, R.A.; Moss, M.

    1995-08-01T23:59:59.000Z

    The thermal conductivities of a variety of insulating materials used in thermal batteries were measured in atmospheres of argon and helium using several techniques. (Helium was used to simulate the hydrogen atmosphere that results when a Li(Si)/FeS{sub 2} thermal battery ages.) The guarded-hot-plate method was used with the Min-K insulation because of its extremely low thermal conductivity. For comparison purposes, the thermal conductivity of the Min-K insulating board was also measured using the hot-probe method. The thermal-comparator method was used for the rigid Fiberfrax board and Fiberfrax paper. The thermal conductivity of the paper was measured under several levels of compression to simulate the conditions of the insulating wrap used on the stack in a thermal battery. The results of preliminary thermal-characterization tests with several silica aerogel materials are also presented.

  16. Probing the topology in band insulators

    E-Print Network [OSTI]

    Chen, Kuang-Ting, Ph. D. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Topological Insulator is a newly found state of matter. Unlike phases described by the traditional Landau theory of symmetry breaking, the topological phases do not break symmetry, and it is not obvious in which measurable ...

  17. Air leakage of Insulated Concrete Form houses

    E-Print Network [OSTI]

    Durschlag, Hannah (Hanna Rebekah)

    2012-01-01T23:59:59.000Z

    Air leakage has been shown to increase building energy use due to additional heating and cooling loads. Although many construction types have been examined for leakage, an exploration of a large number of Insulated Concrete ...

  18. A Guide to Insulation Selection for Industrial Applications

    E-Print Network [OSTI]

    Harrison, M. R.

    1979-01-01T23:59:59.000Z

    of new insulations on th mar ket, it is important that the insulation selection process be upgraded. Insulation peci fications need to be reviewed in terms of new products and installation techniques. Also, the specific application or end use should... be critically analyzed to determine whic~ pro f ducts are best suited for that application. INSULATION MATERIAL SELECTION The selection and specification of insulation materials can be broken down int two I separate but interrelated activities. The first...

  19. Panelized wall system with foam core insulation

    DOE Patents [OSTI]

    Kosny, Jan (Oak Ridge, TN); Gaskin, Sally (Houston, TX)

    2009-10-20T23:59:59.000Z

    A wall system includes a plurality of wall members, the wall members having a first metal panel, a second metal panel, and an insulating core between the first panel and the second panel. At least one of the first panel and the second panel include ridge portions. The insulating core can be a foam, such as a polyurethane foam. The foam can include at least one opacifier to improve the k-factor of the foam.

  20. T-Duality and Topological Insulators

    E-Print Network [OSTI]

    Mathai, Varghese

    2015-01-01T23:59:59.000Z

    It is well known that topological insulators are classified by a family of groups, which coincidentally also classifies D-brane charges on orientifolds in string theory. In this letter, we extend this correlation via a geometric analog of the real Fourier transform to obtain a novel duality of topological insulators that can be viewed as a condensed matter analog of T-duality in string theory.

  1. Status of surface conduction in topological insulators

    SciTech Connect (OSTI)

    Barua, Sourabh, E-mail: sbarua@iitk.ac.in; Rajeev, K. P. [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016 (India)] [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016 (India)

    2014-01-15T23:59:59.000Z

    In this report, we scrutinize the thickness dependent resistivity data from the recent literature on electrical transport measurements in topological insulators. A linear increase in resistivity with increase in thickness is expected in the case of these materials since they have an insulating bulk and a conducting surface. However, such a trend is not seen in the resistivity versus thickness data for all the cases examined, except for some samples, where it holds for a range of thickness.

  2. Measure Guideline: Internal Insulation of Masonry Walls

    SciTech Connect (OSTI)

    Straube, J. F.; Ueno, K.; Schumacher, C. J.

    2012-07-01T23:59:59.000Z

    This measure guideline provides recommendations for interior insulation assemblies that control interstitial condensation and durability risks; recommendations for acceptable thermal performance are also provided. An illustrated guide of high-risk exterior details (which concentrate bulk water), and recommended remediation details is provided. This is followed by a recommended methodology for risk assessment of a masonry interior insulation project: a series of steps are suggested to assess the risks associated with this retrofit, with greater certainty with added steps.

  3. Application of LBB to a nozzle-pipe interface

    SciTech Connect (OSTI)

    Yu, Y.J.; Sohn, G.H.; Kim, Y.J. [and others

    1997-04-01T23:59:59.000Z

    Typical LBB (Leak-Before-Break) analysis is performed for the highest stress location for each different type of material in the high energy pipe line. In most cases, the highest stress occurs at the nozzle and pipe interface location at the terminal end. The standard finite element analysis approach to calculate J-Integral values at the crack tip utilizes symmetry conditions when modeling near the nozzle as well as away from the nozzle region to minimize the model size and simplify the calculation of J-integral values at the crack tip. A factor of two is typically applied to the J-integral value to account for symmetric conditions. This simplified analysis can lead to conservative results especially for small diameter pipes where the asymmetry of the nozzle-pipe interface is ignored. The stiffness of the residual piping system and non-symmetries of geometry along with different material for the nozzle, safe end and pipe are usually omitted in current LBB methodology. In this paper, the effects of non-symmetries due to geometry and material at the pipe-nozzle interface are presented. Various LBB analyses are performed for a small diameter piping system to evaluate the effect a nozzle has on the J-integral calculation, crack opening area and crack stability. In addition, material differences between the nozzle and pipe are evaluated. Comparison is made between a pipe model and a nozzle-pipe interface model, and a LBB PED (Piping Evaluation Diagram) curve is developed to summarize the results for use by piping designers.

  4. Load responsive multilayer insulation performance testing

    SciTech Connect (OSTI)

    Dye, S.; Kopelove, A. [Quest Thermal Group, 6452 Fig Street Suite A, Arvada, CO 80004 (United States); Mills, G. L. [Ball Aerospace and Technologies Corp, 1600 Commerce Street, Boulder, CO 80301 (United States)

    2014-01-29T23:59:59.000Z

    Cryogenic insulation designed to operate at various pressures from one atmosphere to vacuum, with high thermal performance and light weight, is needed for cryogenically fueled space launch vehicles and aircraft. Multilayer insulation (MLI) performs well in a high vacuum, but the required vacuum shell for use in the atmosphere is heavy. Spray-on foam insulation (SOFI) is often used in these systems because of its light weight, but can have a higher heat flux than desired. We report on the continued development of Load Responsive Multilayer Insulation (LRMLI), an advanced thermal insulation system that uses dynamic beam discrete spacers that provide high thermal performance both in atmosphere and vacuum. LRMLI consists of layers of thermal radiation barriers separated and supported by micromolded polymer spacers. The spacers have low thermal conductance, and self-support a thin, lightweight vacuum shell that provides internal high vacuum in the insulation. The dynamic load responsive spacers compress to support the external load of a vacuum shell in one atmosphere, and decompress under reduced atmospheric pressure for lower heat leak. Structural load testing was performed on the spacers with various configurations. LRMLI was installed on a 400 liter tank and boil off testing with liquid nitrogen performed at various chamber pressures from one atmosphere to high vacuum. Testing was also performed with an MLI blanket on the outside of the LRMLI.

  5. Topological insulators and superconductors from string theory

    SciTech Connect (OSTI)

    Ryu, Shinsei; Takayanagi, Tadashi [Department of Physics, University of California, Berkeley, California 94720 (United States); Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, Kashiwa, Chiba 277-8582 (Japan)

    2010-10-15T23:59:59.000Z

    Topological insulators and superconductors in different spatial dimensions and with different discrete symmetries have been fully classified recently, revealing a periodic structure for the pattern of possible types of topological insulators and superconductors, both in terms of spatial dimensions and in terms of symmetry classes. It was proposed that K theory is behind the periodicity. On the other hand, D-branes, a solitonic object in string theory, are also known to be classified by K theory. In this paper, by inspecting low-energy effective field theories realized by two parallel D-branes, we establish a one-to-one correspondence between the K-theory classification of topological insulators/superconductors and D-brane charges. In addition, the string theory realization of topological insulators and superconductors comes naturally with gauge interactions, and the Wess-Zumino term of the D-branes gives rise to a gauge field theory of topological nature, such as ones with the Chern-Simons term or the {theta} term in various dimensions. This sheds light on topological insulators and superconductors beyond noninteracting systems, and the underlying topological field theory description thereof. In particular, our string theory realization includes the honeycomb lattice Kitaev model in two spatial dimensions, and its higher-dimensional extensions. Increasing the number of D-branes naturally leads to a realization of topological insulators and superconductors in terms of holography (AdS/CFT).

  6. Topological Insulators and Superconductors from String Theory

    E-Print Network [OSTI]

    Shinsei Ryu; Tadashi Takayanagi

    2010-08-01T23:59:59.000Z

    Topological insulators and superconductors in different spatial dimensions and with different discrete symmetries have been fully classified recently, revealing a periodic structure for the pattern of possible types of topological insulators and supercondutors, both in terms of spatial dimensions and in terms of symmetry classes. It was proposed that K-theory is behind the periodicity. On the other hand, D-branes, a solitonic object in string theory, are also known to be classified by K-theory. In this paper, by inspecting low-energy effective field theories realized by two parallel D-branes, we establish a one-to-one correspondence between the K-theory classification of topological insulators/superconductors and D-brane charges. In addition, the string theory realization of topological insulators and superconductors comes naturally with gauge interactions, and the Wess-Zumino term of the D-branes gives rise to a gauge field theory of topological nature, such as ones with the Chern-Simons term or the $\\theta$-term in various dimensions. This sheds light on topological insulators and superconductors beyond non-interacting systems, and the underlying topological field theory description thereof. In particular, our string theory realization includes the honeycomb lattice Kitaev model in two spatial dimensions, and its higher-dimensional extensions. Increasing the number of D-branes naturally leads to a realization of topological insulators and superconductors in terms of holography (AdS/CFT).

  7. Design Tool for Cryogenic Thermal Insulation Systems

    SciTech Connect (OSTI)

    Demko, Jonathan A [ORNL] [ORNL; Fesmire, J. E. [NASA Kennedy Space Center, Kennedy Space Center, Florida] [NASA Kennedy Space Center, Kennedy Space Center, Florida; Augustynowicz, S. D. [Sierra Lobo Inc., Kennedy Space Center, Florida] [Sierra Lobo Inc., Kennedy Space Center, Florida

    2008-01-01T23:59:59.000Z

    Thermal isolation of low-temperature systems from ambient environments is a constant issue faced by practitioners of cryogenics. For energy-efficient systems and processes to be realized, thermal insulation must be considered as an integrated system, not merely an add-on element. A design tool to determine the performance of insulation systems for comparative trade-off studies of different available material options was developed. The approach is to apply thermal analysis to standard shapes (plane walls, cylinders, spheres) that are relatively simple to characterize with a one-dimensional analytical or numerical model. The user describes the system hot and cold boundary geometry and the operating environment. Basic outputs such as heat load and temperature profiles are determined. The user can select from a built-in insulation material database or input user defined materials. Existing information has been combined with the new experimental thermal conductivity data produced by the Cryogenics Test Laboratory for cryogenic and vacuum environments, including high vacuum, soft vacuum, and no vacuum. Materials in the design tool include multilayer insulation, aerogel blankets, aerogel bulk-fill, foams, powders, composites, and other insulation system constructions. A comparison of the design tool to a specific composite thermal insulation system is given.

  8. Corrosion failures of austenitic stainless steel piping

    SciTech Connect (OSTI)

    Louthan, M.R. Jr.

    1993-10-01T23:59:59.000Z

    The safe and efficient operation of many chemical/industrial systems requires the continued integrity of the process piping; this is achieved through a complex series of interactions influenced by design, fabrication, construction, operation, inspection and lay-up requirements. Potential material-enviroment interactions are frequently, if evaluated at all, relegated to secondary considerations. This tendency virtually assures corrosion induced degradation of the process piping systems. Pitting, crevice attack, stress cracking, microbiologically influenced corrosion, intergranular attack and corrosion fatigue have caused leaks, cracks, failures and shutdown of numerous process systems. This paper uses the lessons learned from failure analysis to emphasize the importance of an integrated material program to system success. The necessity of continuing evaluation if also emphasized through examples of failures which were associated with materials-environment interactions caused by slight alterations of processes and/or systems.

  9. Calculator programs for pipe stress engineering

    SciTech Connect (OSTI)

    Morgan, K.S.

    1985-01-01T23:59:59.000Z

    This book contains a collection of programs for solving a wide variety of stress problems using both the TI-59 and HP-41CV calculators. Each program is prefaced with a description of the problem to be solved, nomenclature, code restrictions and program limitations. Solutions are explained analytically and then followed by the complete program listing, documentation and checklists. Topics include calculations for pipewall thickness, pressure vessel analysis, reinforcement pads, allowable span, vibration, stress, and two-anchor piping systems.

  10. Heat pipe wick with structural enhancement

    DOE Patents [OSTI]

    Andraka, Charles E.; Adkins, Douglas R.; Moreno, James B.; Rawlinson, K. Scott; Showalter, Steven K.; Moss, Timothy A.

    2003-11-18T23:59:59.000Z

    Heat pipe wick structure wherein a stout sheet of perforated material overlays a high performance wick material such as stainless steel felt affixed to a substrate. The inventive structure provides a good flow path for working fluid while maintaining durability and structural stability independent of the structure (or lack of structure) associated with the wick material. In one described embodiment, a wick of randomly laid .about.8 micron thickness stainless steel fibers is sintered to a metal substrate and a perforated metal overlay.

  11. Magnetic insulation at finite temperatures

    SciTech Connect (OSTI)

    Goedecke, G. H.; Davis, Brian T.; Chen, Chiping [Physics Department, New Mexico State University, Las Cruces, New Mexico 88003 and Raytheon Missile Systems, 1151 E. Hermans Road, Tucson, Arizona 85706 (United States); Intense Beam Theoretical Research Group, Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 and Raytheon Missile Systems, 1151 E. Hermans Road, Tucson, Arizona 85706 (United States)

    2006-08-15T23:59:59.000Z

    A finite-temperature non-neutral plasma (FTNNP) theory of magnetically insulated (MI) electron flows in crossed-field vacuum devices is developed and applied in planar geometry. It is shown that, in contrast to the single type of MI flow predicted by traditional cold-plasma treatments, the nonlinear FTNNP equations admit five types of steady flow, of which three types are MI flows, including flows in which the electric field and/or the tangential velocity at the cathode may be zero or nonzero. It is also shown that finite-temperature Vlasov-Poisson treatments yield solutions for electron number densities and electrostatic potentials that are a subset of the FTNNP solutions. The algorithms that are used to solve the FTNNP equations numerically are discussed, and the numerical results are presented for several examples of the three types of MI flow. Results include prediction of the existence, boundaries, number density profiles, and other properties of sheaths of electrons in the anode-cathode gap.

  12. Determination of leakage areas in nuclear piping

    SciTech Connect (OSTI)

    Keim, E. [Siemens/KWU, Erlangen (Germany)

    1997-04-01T23:59:59.000Z

    For the design and operation of nuclear power plants the Leak-Before-Break (LBB) behavior of a piping component has to be shown. This means that the length of a crack resulting in a leak is smaller than the critical crack length and that the leak is safely detectable by a suitable monitoring system. The LBB-concept of Siemens/KWU is based on computer codes for the evaluation of critical crack lengths, crack openings, leakage areas and leakage rates, developed by Siemens/KWU. In the experience with the leak rate program is described while this paper deals with the computation of crack openings and leakage areas of longitudinal and circumferential cracks by means of fracture mechanics. The leakage areas are determined by the integration of the crack openings along the crack front, considering plasticity and geometrical effects. They are evaluated with respect to minimum values for the design of leak detection systems, and maximum values for controlling jet and reaction forces. By means of fracture mechanics LBB for subcritical cracks has to be shown and the calculation of leakage areas is the basis for quantitatively determining the discharge rate of leaking subcritical through-wall cracks. The analytical approach and its validation will be presented for two examples of complex structures. The first one is a pipe branch containing a circumferential crack and the second one is a pipe bend with a longitudinal crack.

  13. Underground physics without underground labs: large detectors in solution-mined salt caverns

    E-Print Network [OSTI]

    Benjamin Monreal

    2014-09-30T23:59:59.000Z

    A number of current physics topics, including long-baseline neutrino physics, proton decay searches, and supernova neutrino searches, hope to someday construct huge (50 kiloton to megaton) particle detectors in shielded, underground sites. With today's practices, this requires the costly excavation and stabilization of large rooms in mines. In this paper, we propose utilizing the caverns created by the solution mining of salt. The challenge is that such caverns must be filled with pressurized fluid and do not admit human access. We sketch some possible methods of installing familiar detector technologies in a salt cavern under these constraints. Some of the detectors discussed are also suitable for deep-sea experiments, discussed briefly. These sketches appear challenging but feasible, and appear to force few major compromises on detector capabilities. This scheme offers avenues for enormous cost savings on future detector megaprojects.

  14. The study on flow electrification of oil-cellulose insulating system in large power transformer

    SciTech Connect (OSTI)

    Zhang, J.; Cao, L.J. [Nanyang Technological Univ., Singapore (Singapore). School of Electrical and Electronic Engineering

    1995-12-31T23:59:59.000Z

    Electrical breakdown due to charge accumulation from transformer oil flow has caused many failures of large power transformers world wide. The problem is due to the entrainment of diffused electrical double layer charges into circulating transformer oil. As the charges accumulate on the surface of solid insulating materials and in volume oil, static potential builds up. If the rate of charge accumulation is greater than the rate of charge relaxation, harmful spark discharge may occur. By employing a pressboard pipe model, the present study carried out revealed the influence of higher oil flow rate and upstream charge on flow electrification. By simulating an actual transformer internal structure, it is noticed that there is a probability of partial discharge inception under higher oil circulation velocity. However, the upstream charge and dry zone can lead to a great increase of electric field strength, which may become important potential causes of partial discharge inception under the condition of relative low oil velocity.

  15. Method for minimizing contaminant particle effects in gas-insulated electrical apparatus

    DOE Patents [OSTI]

    Pace, Marshall O. (Knoxville, TN); Adcock, James L. (Knoxville, TN); Christophorou, Loucas G. (Oak Ridge, TN)

    1984-01-01T23:59:59.000Z

    Electrical breakdown of a gas insulator in high voltage apparatus is preved by placing an electrical insulative coating on contaminant particles in the gas insulator.

  16. Dynamic predictive clothing insulation models based on outdoor air and indoor operative temperatures

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho

    2012-01-01T23:59:59.000Z

    predictive clothing insulation models based on outdoor airrange of the clothing insulation calculated for eachbuilding). Figure 8 Clothing insulation versus dress code [

  17. Influence of two dynamic predictive clothing insulation models on building energy performance

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano

    2013-01-01T23:59:59.000Z

    Predictive Clothing Insulation Models on Building Energyunnecessarily higher clothing insulation and lower heatingthat the constant clothing insulation assumption lead to the

  18. Predictive clothing insulation model based on outdoor air and indoor operative temperatures

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho

    2012-01-01T23:59:59.000Z

    2012) Predictive clothing insulation model based on outdoorPredictive clothing insulation model based on outdoor airpredictive models of clothing insulation have been developed

  19. Versatile Indian sari: Clothing insulation with different drapes of typical sari ensembles

    E-Print Network [OSTI]

    Indraganti, Madhavi; Lee, Juyoun; Zhang, Hui; Arens, Edward

    2014-01-01T23:59:59.000Z

    Extension of the Clothing Insulation Database for Standardand air movement on that insulation. , s.l. : s.n. Havenith,Estimation of the thermal insulation and evaporative

  20. Underground coal gasification: A near-term alternate fuel

    SciTech Connect (OSTI)

    Avasthi, J.; Singleton, A.M.

    1984-06-01T23:59:59.000Z

    Since the beginning of this century underground coal gasification has been considered as an alternative to mining as a means of utilizing the coal resources not recoverable by conventional methods. The energy crunch of the seventies gave a new impetus to it, and several tests were conducted in the U.S. to demonstrate the feasibility of this method in both horizontal and steeply dipping coal resources. Gulf Research and Development Company has conducted two successful underground coal gasification tests near Rawlins, Wyoming, in steeply dipping coal beds. The results of these tests indicate that the present state of the art is advanced enough for utilization of this technique for commercial purposes. A right combination of resource, consumer, and economic factors will dictate future commercialization of underground coal gasification for the U.S. coal resources.

  1. Heat-treatment with induction heating of pipes within the pipe welding mill

    SciTech Connect (OSTI)

    Zgura, A.A.; Krichevskii, E.M.; Rudenko, V.A.; Lysyak, A.V.; Kumanev, V.A.

    1988-01-01T23:59:59.000Z

    The parameters of induction heat-treatment were determined for pipes from steels 10Kh18N10T and 12Kh18N10T. Mechanical properties of the base metal and the weld were determined by metallography. Induction heat treatment of corrosion-resistant steel pipes in the line of an argon-arc welding mill was found to produce a fine-grain structure of the base metal and weld, ensured that the mechanical properties satisfied all specifications, reduced time and consumption of the etching solution during chemical processing, required no additional personnel, reduced oxidation of the metal and saved energy.

  2. Muon-Induced Background Study for Underground Laboratories

    E-Print Network [OSTI]

    D. -M. Mei; A. Hime

    2005-12-06T23:59:59.000Z

    We provide a comprehensive study of the cosmic-ray muon flux and induced activity as a function of overburden along with a convenient parameterization of the salient fluxes and differential distributions for a suite of underground laboratories ranging in depth from $\\sim$1 to 8 km.w.e.. Particular attention is given to the muon-induced fast neutron activity for the underground sites and we develop a Depth-Sensitivity-Relation to characterize the effect of such background in experiments searching for WIMP dark matter and neutrinoless double beta decay.

  3. An Insulating Glass Knowledge Base

    SciTech Connect (OSTI)

    Michael L. Doll; Gerald Hendrickson; Gerard Lagos; Russell Pylkki; Chris Christensen; Charlie Cureija

    2005-08-01T23:59:59.000Z

    This report will discuss issues relevant to Insulating Glass (IG) durability performance by presenting the observations and developed conclusions in a logical sequential format. This concluding effort discusses Phase II activities and focuses on beginning to quantifying IG durability issues while continuing the approach presented in the Phase I activities (Appendix 1) which discuss a qualitative assessment of durability issues. Phase II developed a focus around two specific IG design classes previously presented in Phase I of this project. The typical box spacer and thermoplastic spacer design including their Failure Modes and Effect Analysis (FMEA) and Fault Tree diagrams were chosen to address two currently used IG design options with varying components and failure modes. The system failures occur due to failures of components or their interfaces. Efforts to begin quantifying the durability issues focused on the development and delivery of an included computer based IG durability simulation program. The focus/effort to deliver the foundation for a comprehensive IG durability simulation tool is necessary to address advancements needed to meet current and future building envelope energy performance goals. This need is based upon the current lack of IG field failure data and the lengthy field observation time necessary for this data collection. Ultimately, the simulation program is intended to be used by designers throughout the current and future industry supply chain. Its use is intended to advance IG durability as expectations grow around energy conservation and with the growth of embedded technologies as required to meet energy needs. In addition the tool has the immediate benefit of providing insight for research and improvement prioritization. Included in the simulation model presentation are elements and/or methods to address IG materials, design, process, quality, induced stress (environmental and other factors), validation, etc. In addition, acquired data is presented in support of project and model assumptions. Finally, current and suggested testing protocol and procedure for future model validation and IG physical testing are discussed.

  4. International Piping Integrity Research Group (IPIRG) Program. Final report

    SciTech Connect (OSTI)

    Wilkowski, G.; Schmidt, R.; Scott, P. [and others

    1997-06-01T23:59:59.000Z

    This is the final report of the International Piping Integrity Research Group (IPIRG) Program. The IPIRG Program was an international group program managed by the U.S. Nuclear Regulatory Commission and funded by a consortium of organizations from nine nations: Canada, France, Italy, Japan, Sweden, Switzerland, Taiwan, the United Kingdom, and the United States. The program objective was to develop data needed to verify engineering methods for assessing the integrity of circumferentially-cracked nuclear power plant piping. The primary focus was an experimental task that investigated the behavior of circumferentially flawed piping systems subjected to high-rate loadings typical of seismic events. To accomplish these objectives a pipe system fabricated as an expansion loop with over 30 meters of 16-inch diameter pipe and five long radius elbows was constructed. Five dynamic, cyclic, flawed piping experiments were conducted using this facility. This report: (1) provides background information on leak-before-break and flaw evaluation procedures for piping, (2) summarizes technical results of the program, (3) gives a relatively detailed assessment of the results from the pipe fracture experiments and complementary analyses, and (4) summarizes advances in the state-of-the-art of pipe fracture technology resulting from the IPIRG program.

  5. INDUCED SEISMICITY MONITORING OF AN UNDERGROUND SALT CAVITY UNDER A TRANSIENT PRESSURE EXPERIMENT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INDUCED SEISMICITY MONITORING OF AN UNDERGROUND SALT CAVITY UNDER A TRANSIENT PRESSURE EXPERIMENT to 125 m in cemented boreholes drilled in thé vicinity of thé study area. The underground cavity under

  6. Underground storage of natural gas, liquid hydrocarbons, and carbon dioxide (Louisiana)

    Broader source: Energy.gov [DOE]

    The Louisiana Department of Environmental Quality regulates the underground storage of natural gas or liquid hydrocarbons and carbon dioxide. Prior to the use of any underground reservoir for the...

  7. Topological insulators and topological nonlinear {sigma} models

    SciTech Connect (OSTI)

    Yao Hong; Lee, Dung-Hai [Department of Physics, University of California at Berkeley, Berkeley, California 94720 (United States) and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    2010-12-15T23:59:59.000Z

    In this paper we link the physics of topological nonlinear {sigma} models with that of Chern-Simons insulators. We show that corresponding to every 2n-dimensional Chern-Simons insulator there is a (n-1)-dimensional topological nonlinear {sigma} model with the Wess-Zumino-Witten term. Breaking internal symmetry in these nonlinear {sigma} models leads to nonlinear {sigma} models with the {theta} term. [This is analogous to the dimension reduction leading from 2n-dimensional Chern-Simons insulators to (2n-1) and (2n-2)-dimensional topological insulators protected by discrete symmetries.] The correspondence described in this paper allows one to derive the topological term in a theory involving fermions and order parameters (we shall referred to them as ''fermion-{sigma} models'') when the conventional gradient-expansion method fails. We also discuss the quantum number of solitons in topological nonlinear {sigma} model and the electromagnetic action of the (2n-1)-dimensional topological insulators. Throughout the paper we use a simple model to illustrate how things work.

  8. A study of the feasibility of construction of underground storage structures in soft soil

    E-Print Network [OSTI]

    Rosner, Stephen Anthony

    1984-01-01T23:59:59.000Z

    CHAPTER I INTRODUCTION Underground construction is a means of providing efficient use of land space. In recent times, the most extensive use of underground construction has been in Sweden. However, possible uses of underground space were recognized... widespread and efficient use of underground space has been in Sweden. This is facilitated in part by the competent rock that is found there. The stratigraphy in Sweden is dominated by Pre-Cambrian and Paleozoic rock with a thin covering of moraine sediment...

  9. Analysis of cracking in small-diameter BWR piping. Final report

    SciTech Connect (OSTI)

    Eason, E.D.; Shusto, L.M.

    1986-01-01T23:59:59.000Z

    In BWRs, the failure rate from intergranular stress corrosion cracking is lower for small piping than for piping of more than 4-in. diameter. Moreover, for the small piping, repair costs are considerably lower, and leakage has much less impact.

  10. Fracture mechanics models developed for piping reliability assessment in light water reactors: piping reliability project

    SciTech Connect (OSTI)

    Harris, D.O.; Lim, E.Y.; Dedhia, D.D.; Woo, H.H.; Chou, C.K.

    1982-06-01T23:59:59.000Z

    The efforts concentrated on modifications of the stratified Monte Carlo code called PRAISE (Piping Reliability Analysis Including Seismic Events) to make it more widely applicable to probabilistic fracture mechanics analysis of nuclear reactor piping. Pipe failures are considered to occur as the result of crack-like defects introduced during fabrication, that escape detection during inspections. The code modifications allow the following factors in addition to those considered in earlier work to be treated: other materials, failure criteria and subcritical crack growth characteristic; welding residual and vibratory stresses; and longitudinal welds (the original version considered only circumferential welds). The fracture mechanics background for the code modifications is included, and details of the modifications themselves provided. Additionally, an updated version of the PRAISE user's manual is included. The revised code, known as PRAISE-B was then applied to a variety of piping problems, including various size lines subject to stress corrosion cracking and vibratory stresses. Analyses including residual stresses and longitudinal welds were also performed.

  11. Multilayer insulation blanket, fabricating apparatus and method

    DOE Patents [OSTI]

    Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

    1992-01-01T23:59:59.000Z

    An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

  12. Method of fabricating a multilayer insulation blanket

    DOE Patents [OSTI]

    Gonczy, John D. (Oak Lawn, IL); Niemann, Ralph C. (Downers Grove, IL); Boroski, William N. (Aurora, IL)

    1993-01-01T23:59:59.000Z

    An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

  13. Electrically insulated MLI and thermal anchor

    SciTech Connect (OSTI)

    Kamiya, Koji; Furukawa, Masato; Murakami, Haruyuki; Kizu, Kaname; Tsuchiya, Katsuhiko; Koidea, Yoshihiko; Yoshida, Kiyoshi [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan); Hatakenaka, Ryuta; Miyakita, Takeshi [Japan Aerospace Exploration and Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505 (Japan)

    2014-01-29T23:59:59.000Z

    The thermal shield of JT-60SA is kept at 80 K and will use the multilayer insulation (MLI) to reduce radiation heat load to the superconducting coils at 4.4 K from the cryostat at 300 K. Due to plasma pulse operation, the MLI is affected by eddy current in toroidal direction. The MLI is designed to suppress the current by electrically insulating every 20 degree in the toroidal direction by covering the MLI with polyimide films. In this paper, two kinds of designs for the MLI system are proposed, focusing on a way to overlap the layers. A boil-off calorimeter method and temperature measurement has been performed to determine the thermal performance of the MLI system. The design of the electrical insulated thermal anchor between the toroidal field (TF) coil and the thermal shield is also explained.

  14. Gaseous insulators for high voltage electrical equipment

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); James, David R. (Knoxville, TN); Pace, Marshall O. (Knoxville, TN); Pai, Robert Y. (Concord, TN)

    1981-01-01T23:59:59.000Z

    Gaseous insulators comprise compounds having high attachment cross sections for electrons having energies in the 0-1.3 electron volt range. Multi-component gaseous insulators comprise compounds and mixtures having overall high electron attachment cross sections in the 0-1.3 electron volt range and moderating gases having high cross sections for inelastic interactions with electrons of energies 1-4 electron volts. Suitable electron attachment components include hexafluorobutyne, perfluorobutene-2, perfluorocyclobutane, perfluorodimethylcyclobutane, perfluorocyclohexene, perfluoromethylcyclohexane, hexafluorobutadiene, perfluoroheptene-1 and hexafluoroazomethane. Suitable moderating gases include N.sub.2, CO, CO.sub.2 and H.sub.2. The gaseous insulating mixture can also contain SF.sub.6, perfluoropropane and perfluorobenzene.

  15. Electrical insulator assembly with oxygen permeation barrier

    DOE Patents [OSTI]

    Van Der Beck, Roland R. (Lansdale, PA); Bond, James A. (Exton, PA)

    1994-01-01T23:59:59.000Z

    A high-voltage electrical insulator (21) for electrically insulating a thermoelectric module (17) in a spacecraft from a niobium-1% zirconium alloy wall (11) of a heat exchanger (13) filled with liquid lithium (16) while providing good thermal conductivity between the heat exchanger and the thermoelectric module. The insulator (21) has a single crystal alumina layer (SxAl.sub.2 O.sub.3, sapphire) with a niobium foil layer (32) bonded thereto on the surface of the alumina crystal (26) facing the heat exchanger wall (11), and a molybdenum layer (31) bonded to the niobium layer (32) to act as an oxygen permeation barrier to preclude the oxygen depleting effects of the lithium from causing undesirable niobium-aluminum intermetallic layers near the alumina-niobium interface.

  16. Is graphene in vacuum an insulator?

    E-Print Network [OSTI]

    Joaquín E. Drut; Timo A. Lähde

    2009-01-15T23:59:59.000Z

    We present evidence, from Lattice Monte Carlo simulations of the phase diagram of graphene as a function of the Coulomb coupling between quasiparticles, that graphene in vacuum is likely to be an insulator. We find a semimetal-insulator transition at $\\alpha_g^\\text{crit} = 1.11 \\pm 0.06$, where $\\alpha_g^{} \\simeq 2.16$ in vacuum, and $\\alpha_g^{} \\simeq 0.79$ on a SiO$_2^{}$ substrate. Our analysis uses the logarithmic derivative of the order parameter, supplemented by an equation of state. The insulating phase disappears above a critical number of four-component fermion flavors $4 < N_f^{\\text{crit}} < 6$. Our data are consistent with a second-order transition.

  17. Constraints on topological order in Mott Insulators

    E-Print Network [OSTI]

    Michael P. Zaletel; Ashvin Vishwanath

    2015-04-18T23:59:59.000Z

    We point out certain symmetry induced constraints on topological order in Mott Insulators (quantum magnets with an odd number of spin $\\tfrac{1}{2}$ per unit cell). We show, for example, that the double semion topological order is incompatible with time reversal and translation symmetry in Mott insulators. This sharpens the Hastings-Oshikawa-Lieb-Schultz-Mattis theorem for 2D quantum magnets, which guarantees that a fully symmetric gapped Mott insulator must be topologically ordered, but is silent on which topological order is permitted. An application of our result is the Kagome lattice quantum antiferromagnet where recent numerical calculations of entanglement entropy indicate a ground state compatible with either toric code or double semion topological order. Our result rules out the latter possibility.

  18. Nuclear reactor vessel fuel thermal insulating barrier

    DOE Patents [OSTI]

    Keegan, C. Patrick; Scobel, James H.; Wright, Richard F.

    2013-03-19T23:59:59.000Z

    The reactor vessel of a nuclear reactor installation which is suspended from the cold leg nozzles in a reactor cavity is provided with a lower thermal insulating barrier spaced from the reactor vessel that has a hemispherical lower section that increases in volume from the center line of the reactor to the outer extent of the diameter of the thermal insulating barrier and smoothly transitions up the side walls of the vessel. The space between the thermal insulating harrier and the reactor vessel forms a chamber which can be flooded with cooling water through passive valving to directly cool the reactor vessel in the event of a severe accident. The passive inlet valve for the cooling water includes a buoyant door that is normally maintained sealed under its own weight and floats open when the cavity is Hooded. Passively opening steam vents are also provided.

  19. Electrical insulator assembly with oxygen permeation barrier

    DOE Patents [OSTI]

    Van Der Beck, R.R.; Bond, J.A.

    1994-03-29T23:59:59.000Z

    A high-voltage electrical insulator for electrically insulating a thermoelectric module in a spacecraft from a niobium-1% zirconium alloy wall of a heat exchanger filled with liquid lithium while providing good thermal conductivity between the heat exchanger and the thermoelectric module. The insulator has a single crystal alumina layer (SxAl[sub 2]O[sub 3], sapphire) with a niobium foil layer bonded thereto on the surface of the alumina crystal facing the heat exchanger wall, and a molybdenum layer bonded to the niobium layer to act as an oxygen permeation barrier to preclude the oxygen depleting effects of the lithium from causing undesirable niobium-aluminum intermetallic layers near the alumina-niobium interface. 3 figures.

  20. Hanna, Wyoming underground coal gasification field test series

    SciTech Connect (OSTI)

    Bartke, T.C.; Gunn, R.D.

    1983-01-01T23:59:59.000Z

    The six in situ coal gasification field tests conducted by LETC near Hanna, WY, demonstrated typical gasification rates of 100 tons/day for continuous operation of about 30 days. Featuring high coal recovery and high product-gas calorific values, the underground process proved to be simple, reliable, and potentially controllable.

  1. Underground Coal Mine Monitoring with Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Yunhao

    10 Underground Coal Mine Monitoring with Wireless Sensor Networks MO LI and YUNHAO LIU Hong Kong University of Science and Technology Environment monitoring in coal mines is an important application queries under instable circumstances. A prototype is deployed with 27 mica2 motes in a real coal mine. We

  2. GEOPHYSICAL DETECTION OF UNDERGROUND CAVITIES DRIAD-LEBEAU1

    E-Print Network [OSTI]

    Boyer, Edmond

    GEOPHYSICAL DETECTION OF UNDERGROUND CAVITIES DRIAD-LEBEAU1 Lynda, PIWAKOWSKI2 Bogdan, STYLES3 & Environmental Geophysics Research Group, School of Physical and Geographical Sciences, Keele University, UK; p.lataste@ghymac.u- bordeaux1.fr ABSTRACT: In this paper, we present a synthesis of the geophysical investigations conducted

  3. Underground Mine Communication and Tracking Systems : A Survey

    E-Print Network [OSTI]

    New South Wales, University of

    get carved and come into existence in the due course of the mineral extraction process. · Low loss of the cutting of the mineral faces. · Unstable nature of geological construction : A mineral face consists from the presence of pillars and undulations following the mineral seam. These underground structures

  4. Underground storage tank 511-D1U1 closure plan

    SciTech Connect (OSTI)

    Mancieri, S.; Giuntoli, N.

    1993-09-01T23:59:59.000Z

    This document contains the closure plan for diesel fuel underground storage tank 511-D1U1 and appendices containing supplemental information such as staff training certification and task summaries. Precision tank test data, a site health and safety plan, and material safety data sheets are also included.

  5. Coal properties and system operating parameters for underground coal gasification

    SciTech Connect (OSTI)

    Yang, L. [China University of Mining & Technology, Xuzhou (China)

    2008-07-01T23:59:59.000Z

    Through the model experiment for underground coal gasification, the influence of the properties for gasification agent and gasification methods on underground coal gasifier performance were studied. The results showed that pulsating gasification, to some extent, could improve gas quality, whereas steam gasification led to the production of high heating value gas. Oxygen-enriched air and backflow gasification failed to improve the quality of the outlet gas remarkably, but they could heighten the temperature of the gasifier quickly. According to the experiment data, the longitudinal average gasification rate along the direction of the channel in the gasifying seams was 1.212 m/d, with transverse average gasification rate 0.069 m/d. Experiment indicated that, for the oxygen-enriched steam gasification, when the steam/oxygen ratio was 2:1, gas compositions remained stable, with H{sub 2} + CO content virtually standing between 60% and 70% and O{sub 2} content below 0.5%. The general regularities of the development of the temperature field within the underground gasifier and the reasons for the changes of gas quality were also analyzed. The 'autopneumatolysis' and methanization reaction existing in the underground gasification process were first proposed.

  6. Effect of repository underground ventilation on emplacement drift temperature control

    SciTech Connect (OSTI)

    Yang, H.; Sun, Y.; McKenzie, D.G.; Bhattacharyya, K.K. [Morrison Knudson Corporation, Las Vegas, NV (United States)

    1996-02-01T23:59:59.000Z

    The repository advanced conceptual design (ACD) is being conducted by the Civilian Radioactive Waste Management System, Management & Operating Contractor. Underground ventilation analyses during ACD have resulted in preliminary ventilation concepts and design methodologies. This paper discusses one of the recent evaluations -- effects of ventilation on emplacement drift temperature management.

  7. Heat pipe transient measurements incorporating visual methods

    E-Print Network [OSTI]

    DeHart, Mark David

    1986-01-01T23:59:59.000Z

    liftoff on January 28, 1 9B6. These five men and two women gave their lives while att mpting to lead mankind into space and open the door for the future of our race. Their noble sacr ifice should r. ever be . orgotten. ACKNOWLEDGEMENTS I wish...!!CE December 1986 Major Subject: 1'uclear Eng nearing HEAT PIPE TRANSIENT MEASUREMENTS INCORPORATING VISUAL METHODS A Thesis by MARK DAVID DeHART Approved as to style and content by: Frederick R. Best (Chairman of Committee) Carl A. Erdman (Member...

  8. Heat pipe with improved wick structures

    DOE Patents [OSTI]

    Benson, David A. (Albuquerque, NM); Robino, Charles V. (Albuquerque, NM); Palmer, David W. (Albuquerque, NM); Kravitz, Stanley H. (Placitas, NM)

    2000-01-01T23:59:59.000Z

    An improved planar heat pipe wick structure having projections formed by micromachining processes. The projections form arrays of interlocking, semi-closed structures with multiple flow paths on the substrate. The projections also include overhanging caps at their tops to increase the capillary pumping action of the wick structure. The capped projections can be formed in stacked layers. Another layer of smaller, more closely spaced projections without caps can also be formed on the substrate in between the capped projections. Inexpensive materials such as Kovar can be used as substrates, and the projections can be formed by electrodepositing nickel through photoresist masks.

  9. Silicon on insulator with active buried regions

    DOE Patents [OSTI]

    McCarthy, Anthony M. (Menlo Park, CA)

    1998-06-02T23:59:59.000Z

    A method for forming patterned buried components, such as collectors, sources and drains, in silicon-on-insulator (SOI) devices. The method is carried out by epitaxially growing a suitable sequence of single or multiple etch stop layers ending with a thin silicon layer on a silicon substrate, masking the silicon such that the desired pattern is exposed, introducing dopant and activating in the thin silicon layer to form doped regions. Then, bonding the silicon layer to an insulator substrate, and removing the silicon substrate. The method additionally involves forming electrical contact regions in the thin silicon layer for the buried collectors.

  10. Silicon on insulator with active buried regions

    DOE Patents [OSTI]

    McCarthy, A.M.

    1996-01-30T23:59:59.000Z

    A method is disclosed for forming patterned buried components, such as collectors, sources and drains, in silicon-on-insulator (SOI) devices. The method is carried out by epitaxially growing a suitable sequence of single or multiple etch stop layers ending with a thin silicon layer on a silicon substrate, masking the silicon such that the desired pattern is exposed, introducing dopant and activating in the thin silicon layer to form doped regions. Then, bonding the silicon layer to an insulator substrate, and removing the silicon substrate. The method additionally involves forming electrical contact regions in the thin silicon layer for the buried collectors. 10 figs.

  11. Silicon on insulator with active buried regions

    DOE Patents [OSTI]

    McCarthy, Anthony M. (Menlo Park, CA)

    1996-01-01T23:59:59.000Z

    A method for forming patterned buried components, such as collectors, sources and drains, in silicon-on-insulator (SOI) devices. The method is carried out by epitaxially growing a suitable sequence of single or multiple etch stop layers ending with a thin silicon layer on a silicon substrate, masking the silicon such that the desired pattern is exposed, introducing dopant and activating in the thin silicon layer to form doped regions. Then, bonding the silicon layer to an insulator substrate, and removing the silicon substrate. The method additionally involves forming electrical contact regions in the thin silicon layer for the buried collectors.

  12. Silicon on insulator with active buried regions

    DOE Patents [OSTI]

    McCarthy, A.M.

    1998-06-02T23:59:59.000Z

    A method is disclosed for forming patterned buried components, such as collectors, sources and drains, in silicon-on-insulator (SOI) devices. The method is carried out by epitaxially growing a suitable sequence of single or multiple etch stop layers ending with a thin silicon layer on a silicon substrate, masking the silicon such that the desired pattern is exposed, introducing dopant and activating in the thin silicon layer to form doped regions. Then, bonding the silicon layer to an insulator substrate, and removing the silicon substrate. The method additionally involves forming electrical contact regions in the thin silicon layer for the buried collectors. 10 figs.

  13. Thermal performance measurements of insulated roof systems

    SciTech Connect (OSTI)

    Courville, G.E.; Childs, K.W.; Walukas, D.J.; Childs, P.W.; Griggs, E.I.

    1985-01-01T23:59:59.000Z

    Oak Ridge National Laboratory has established a Roof Thermal Researcch Apparatus for carrying out thermal and hygric experiments on sections of low-sloped roofs. Test panels are exposed to a controlled temperature interior space and to the prevailing East Tennessee exterior environment. They are well instrumented and all data are stored and aided in the analysis by computer systems. Current experiments include studies of the effect of wet insulation on membrane temperature, thermal storage phenomena in built-up roof insulation, and the effects of varying surface reflectance on roof thermal performance.

  14. Investigations on field optimization of insulator geometries

    SciTech Connect (OSTI)

    Daumling, H.H.; Singer, H.

    1989-01-01T23:59:59.000Z

    Today computer methods become more and more a useful help for the constructor of any high voltage components, because stresses on dielectric materials have become increasingly high. The paper describes new algorithms based on the CAD concept for optimizing insulator contours according to a given field distribution along their surfaces. These algorithms were applied to some examples of insulators. By means of experimental investigations it was found that it is not sufficient to achieve a low tangential field strength component but that it is necessary to reduce the maximum values of the total field strength as far as possible, especially in the case of high air humidities.

  15. Experience with 113 Retrofit Insulation Surveys

    E-Print Network [OSTI]

    Webber, W. O.

    EXPERIENCE WITH 113 RETROFIT INSULATION SURVEYS W. O. Webber Energy Conservation Consultants Baytown, Texas ABSTRACT We have surveyed 113 plants for thirteen clie~ts. The results of 21 recent surveys, at today s avera&e fuel price, show...,000 for $3.00 fuel up to $80,000 for $6.00 fuel. When this happens, the project return will increase from 100% up to 165% per year. The main problem that we have found with retrofit insulation surveys is the processing of detail in existing plants...

  16. Edge modes in band topological insulators

    E-Print Network [OSTI]

    Lukasz Fidkowski; T. S. Jackson; Israel Klich

    2011-05-09T23:59:59.000Z

    We characterize gapless edge modes in translation invariant topological insulators. We show that the edge mode spectrum is a continuous deformation of the spectrum of a certain gluing function defining the occupied state bundle over the Brillouin zone (BZ). Topologically non-trivial gluing functions, corresponding to non-trivial bundles, then yield edge modes exhibiting spectral flow. We illustrate our results for the case of chiral edge states in two dimensional Chern insulators, as well as helical edges in quantum spin Hall states.

  17. Rolling up SiGe on insulator

    SciTech Connect (OSTI)

    Cavallo, F.; Songmuang, R.; Ulrich, C.; Schmidt, O. G. [Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)

    2007-05-07T23:59:59.000Z

    SiGe on insulator films of 10-50 nm thickness are fabricated by Ge condensation applying different oxidation times. The layers are released from the substrate by selectively etching the insulator film. Due to the varying Ge composition, the layers bend downward toward the substrate surface and roll up into microtubes. Depending on the Ge condensation, the strain distribution in the SiGe layers varies and allows a scaling of the tube diameters between 1 and 4 {mu}m. Assuming pseudomorphic SiGe layers, the tube diameters are smaller than expected from continuum mechanical theory. This suggests the occurrence of additional strain in the oxidized films.

  18. Insulated laser tube structure and method of making same

    DOE Patents [OSTI]

    Dittbenner, Gerald R. (4353 Findlay Way, Livermore, CA 94550)

    1999-01-01T23:59:59.000Z

    An insulated high temperature ceramic laser tube having substantially uniform insulation along the length of the tube is disclosed having particulate ceramic insulation positioned between the outer wall of the ceramic laser tube and the inner surface of tubular ceramic fiber insulation which surrounds the ceramic laser tube. The particulate ceramic insulation is preferably a ceramic capable of sintering to the outer surface of the ceramic laser tube and to the inner surface of the tubular ceramic fiber insulation. The addition of the particulate ceramic insulation to fill all the voids between the ceramic laser tube and the fibrous ceramic insulation permits the laser tube to be operated at a substantially uniform temperature throughout the length of the laser tube.

  19. Tuning of the Metal-Insulator Transition via Alkali Adsorption

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

    Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Turning a material from an insulator to a metal, or vice versa, by light irradiation, exposure to electric or...

  20. Tuning of the Metal-Insulator Transition via Alkali Adsorption

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

    Tuning of the Metal-Insulator Transition via Alkali Adsorption Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Wednesday, 29 March 2006 00:00 Turning a...

  1. Moisture Durability of Vapor Permeable Insulating Sheathing (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-10-01T23:59:59.000Z

    In this project, Building America team Building Science Corporation researched some of the ramifications of using exterior, vapor permeable insulation on retrofit walls with vapor permeable cavity insulation. Retrofit strategies are a key factor in reducing exterior building stock consumption.

  2. Observation of a Macroscopically Quantum-Entangled Insulator

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

    Insulator Print Wednesday, 27 May 2009 00:00 It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of...

  3. Observation of a Macroscopically Quantum-Entangled Insulator

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

    of a Macroscopically Quantum-Entangled Insulator Print It has recently been proposed that insulators with large band gaps and strong spin-orbit coupling can host a new phase of...

  4. Gapped symmetry preserving surface state for the electron topological insulator

    E-Print Network [OSTI]

    Wang, Chong

    It is well known that the three-dimensional (3D) electronic topological insulator (TI) with charge-conservation and time-reversal symmetry cannot have a trivial insulating surface that preserves symmetry. It is often ...

  5. Classification and characterization of topological insulators and superconductors

    E-Print Network [OSTI]

    Mong, Roger

    2012-01-01T23:59:59.000Z

    Weak topological insulators (WTI) . . . . . 1.4 Topologicalweak topological insulators (WTI). The surfaces of STIs haveSTI STM TI TRIM/TRIMs TRS TKNN VPT WTI one-dimension, two-

  6. LLNL underground coal gasification project. Quarterly progress report, July-Sep 1980. [Hoe Creek and Gorgas, Alabama tests

    SciTech Connect (OSTI)

    Olness, D.U. (ed.)

    1980-10-14T23:59:59.000Z

    Laboratory studies of forward gasification through drilled holes in blocks of coal have continued. Such studies give insight into cavity growth mechanisms and particulate production. In addition to obtaining a qualitative comparison of the forward burn characteristics of two coals, we obtained information on the influence of bedding plane/cleat structure orientation on the early-time shape of the burn cavity in the Roland coal. We have improved our model of the coal drying rate during underground coal gasification (UCG) by adding refinements to the model. To aid in analyzing and predicting the performance of UCG tests, we have developed a simple gas-compositional model. When the model was tested against experimental data from the three Hoe Creek experiments, it was able to match very closely the observed gas compositions, energy fractions, and water influxes. This model can be used to make performance predictions consistent with the material and energy balance constraints of the underground system. A postburn coring and wireline-logging study is under way at the Hoe Creek No. 3 site to investigate the overall effect of the directionally-drilled, horizontal linking hole to better estimate the amount of coal gasified and the shape of the combustion front, and to provide additional information on subsurface deformation and thermal effects. The site reclamation work was completed, including the dismantling of all surface equipment and piping and the plugging and sealing of process and diagnostics wells. Final grading of the reclaimed land has been completed, and the area is ready for disk-seeding. Our survey of the UCG literature has continued with a review of the extensive tests at Gorgas, Alabama, carried on by the US Bureau of Mines from 1947 to 1959.

  7. Fast reactor power plant design having heat pipe heat exchanger

    DOE Patents [OSTI]

    Huebotter, P.R.; McLennan, G.A.

    1984-08-30T23:59:59.000Z

    The invention relates to a pool-type fission reactor power plant design having a reactor vessel containing a primary coolant (such as liquid sodium), and a steam expansion device powered by a pressurized water/steam coolant system. Heat pipe means are disposed between the primary and water coolants to complete the heat transfer therebetween. The heat pipes are vertically oriented, penetrating the reactor deck and being directly submerged in the primary coolant. A U-tube or line passes through each heat pipe, extended over most of the length of the heat pipe and having its walls spaced from but closely proximate to and generally facing the surrounding walls of the heat pipe. The water/steam coolant loop includes each U-tube and the steam expansion device. A heat transfer medium (such as mercury) fills each of the heat pipes. The thermal energy from the primary coolant is transferred to the water coolant by isothermal evaporation-condensation of the heat transfer medium between the heat pipe and U-tube walls, the heat transfer medium moving within the heat pipe primarily transversely between these walls.

  8. Fast reactor power plant design having heat pipe heat exchanger

    DOE Patents [OSTI]

    Huebotter, Paul R. (Western Springs, IL); McLennan, George A. (Downers Grove, IL)

    1985-01-01T23:59:59.000Z

    The invention relates to a pool-type fission reactor power plant design having a reactor vessel containing a primary coolant (such as liquid sodium), and a steam expansion device powered by a pressurized water/steam coolant system. Heat pipe means are disposed between the primary and water coolants to complete the heat transfer therebetween. The heat pipes are vertically oriented, penetrating the reactor deck and being directly submerged in the primary coolant. A U-tube or line passes through each heat pipe, extended over most of the length of the heat pipe and having its walls spaced from but closely proximate to and generally facing the surrounding walls of the heat pipe. The water/steam coolant loop includes each U-tube and the steam expansion device. A heat transfer medium (such as mercury) fills each of the heat pipes. The thermal energy from the primary coolant is transferred to the water coolant by isothermal evaporation-condensation of the heat transfer medium between the heat pipe and U-tube walls, the heat transfer medium moving within the heat pipe primarily transversely between these walls.

  9. Mechanics of Insulator Behavior in Concrete Crosstie Fastening Systems

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    of Insulator Behavior Analysis of failure modes and causes · Failure Mode and Effect Analysis (FMEA) used

  10. CODIFICATION OF FIBER REINFORCED COMPOSITE PIPING

    SciTech Connect (OSTI)

    Rawls, G.

    2012-10-10T23:59:59.000Z

    The goal of the overall project is to successfully adapt spoolable FRP currently used in the oil industry for use in hydrogen pipelines. The use of FRP materials for hydrogen service will rely on the demonstrated compatibility of these materials for pipeline service environments and operating conditions. The ability of the polymer piping to withstand degradation while in service, and development of the tools and data required for life management are imperative for successful implementation of these materials for hydrogen pipeline. The information and data provided in this report provides the technical basis for the codification for fiber reinforced piping (FRP) for hydrogen service. The DOE has invested in the evaluation of FRP for the delivery for gaseous hydrogen to support the development of a hydrogen infrastructure. The codification plan calls for detailed investigation of the following areas: System design and applicable codes and standards; Service degradation of FRP; Flaw tolerance and flaw detection; Integrity management plan; Leak detection and operational controls evaluation; Repair evaluation. The FRP codification process started with commercially available products that had extensive use in the oil and gas industry. These products have been evaluated to assure that sufficient structural integrity is available for a gaseous hydrogen environment.

  11. Computational model of miniature pulsating heat pipes.

    SciTech Connect (OSTI)

    Martinez, Mario J.; Givler, Richard C.

    2013-01-01T23:59:59.000Z

    The modeling work described herein represents Sandia National Laboratories (SNL) portion of a collaborative three-year project with Northrop Grumman Electronic Systems (NGES) and the University of Missouri to develop an advanced, thermal ground-plane (TGP), which is a device, of planar configuration, that delivers heat from a source to an ambient environment with high efficiency. Work at all three institutions was funded by DARPA/MTO; Sandia was funded under DARPA/MTO project number 015070924. This is the final report on this project for SNL. This report presents a numerical model of a pulsating heat pipe, a device employing a two phase (liquid and its vapor) working fluid confined in a closed loop channel etched/milled into a serpentine configuration in a solid metal plate. The device delivers heat from an evaporator (hot zone) to a condenser (cold zone). This new model includes key physical processes important to the operation of flat plate pulsating heat pipes (e.g. dynamic bubble nucleation, evaporation and condensation), together with conjugate heat transfer with the solid portion of the device. The model qualitatively and quantitatively predicts performance characteristics and metrics, which was demonstrated by favorable comparisons with experimental results on similar configurations. Application of the model also corroborated many previous performance observations with respect to key parameters such as heat load, fill ratio and orientation.

  12. Response margins of the dynamic analysis of piping systems

    SciTech Connect (OSTI)

    Johnson, J.J.; Benda, B.J.; Chuang, T.Y.; Smith, P.D.

    1984-04-01T23:59:59.000Z

    This report is organized as follows: Section 2 describes the three piping systems of the Zion nuclear power plant which formed the basis of the present study. The auxiliary feedwater (AFW) piping from steam generator to containment, the residual heat removal (RHR) and safety injection piping in the auxiliary building, and the reactor coolant loops (RCL) including a portion of the branch lines were analyzed. Section 3 describes the analysis methods and the analyses performed. Section 4 presents the numerical results; the principal results presented as comparisons of response calculated by best estimate time history analysis methods vs. the SRP response spectrum technique. Section 5 draws conclusions from the results. Appendix A contains a brief description of the mathematical models that defined the structures containing the three piping systems. Response from these models provided input to the piping models. Appendix B provides a detailed derivation of the pseudostatic mode approach to the multisupport time history analysis method used in this study.

  13. Uncertainty analysis for probabilistic pipe fracture evaluations in LBB applications

    SciTech Connect (OSTI)

    Rahman, S.; Ghadiali, N.; Wilkowski, G.

    1997-04-01T23:59:59.000Z

    During the NRC`s Short Cracks in Piping and Piping Welds Program at Battelle, a probabilistic methodology was developed to conduct fracture evaluations of circumferentially cracked pipes for application to leak-rate detection. Later, in the IPIRG-2 program, several parameters that may affect leak-before-break and other pipe flaw evaluations were identified. This paper presents new results from several uncertainty analyses to evaluate the effects of normal operating stresses, normal plus safe-shutdown earthquake stresses, off-centered cracks, restraint of pressure-induced bending, and dynamic and cyclic loading rates on the conditional failure probability of pipes. systems in BWR and PWR. For each parameter, the sensitivity to conditional probability of failure and hence, its importance on probabilistic leak-before-break evaluations were determined.

  14. Molecular Cell Mode of Regulation and the Insulation

    E-Print Network [OSTI]

    Molecular Cell Article Mode of Regulation and the Insulation of Bacterial Gene Expression Vered.molcel.2012.04.032 SUMMARY A gene can be said to be insulated from environ- mental variations if its the insulation of the lac promoter of E. coli and of synthetic constructs in which the transcription factor CRP

  15. MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY

    E-Print Network [OSTI]

    COURSE 7 MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY MATTHEW P.A. FISHER insulators and quantum magnetism 583 3.1 Spin models and quantum magnetism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 637 #12;MOTT INSULATORS, SPIN LIQUIDS AND QUANTUM DISORDERED SUPERCONDUCTIVITY Matthew P.A. Fisher

  16. Vacuum insulation tandem accelerator for B. Bayanov1

    E-Print Network [OSTI]

    Taskaev, Sergey Yur'evich

    273 Vacuum insulation tandem accelerator for NCT B. Bayanov1 , Yu. Belchenko1 , V. Belov1 , G of high current hydrogen negative ions by special geometry of potential electrodes with vacuum insulation. Fig. 1 shows the construction of vacuum insulation tandem accelerator developed at BINP, as a base

  17. Method and apparatus for filling thermal insulating systems

    DOE Patents [OSTI]

    Arasteh, D.K.

    1992-01-14T23:59:59.000Z

    A method for filling insulated glazing units is disclosed. The method utilizes a vacuum chamber in which the insulated glazing units are placed. The insulated glazing units and vacuum chamber are evacuated simultaneously. The units are then refilled with a low conductance gas such as Krypton while the chamber is simultaneously refilled with air. 3 figs.

  18. Topological insulators and superconductors Xiao-Liang Qi

    E-Print Network [OSTI]

    Wu, Zhigang

    Topological insulators and superconductors Xiao-Liang Qi Microsoft Research, Station Q, Elings Hall, California 94305, USA (Received 2 August 2010; published 14 October 2011) Topological insulators are new-dimensional and three-dimensional topological insulators are reviewed, and both the topological band theory

  19. The Revision of the UK Pipe Insulation Standard: - Its Likely Effect on Building Energy Efficiency and the Uptake of Highly Efficient Insulation Materials

    E-Print Network [OSTI]

    Ashford, P.

    2002-01-01T23:59:59.000Z

    25 0 50 Condensation Control 8760 50 0 0 0 100 0 15 Domestic Hot Water 500 75 40 20 15 25 0 65 Commercial Hot Water 4380 75 50 30 20 0 0 25 Domestic Heating 3500 75 40 20 15 25 0 50 Commercial Heating ? 750C 3500... 75 50 30 20 0 0 20 Commercial Heating ? 1000C 3500 75 50 30 20 0 20 5 Commercial Heating ? 1500C 3500 75 50 30 20 0 30 0 Process ? 1000C 8760 75 50 30 20 0 50 0 Process ? 2000C 8760 75 50 30 20 0 50 0 Process ? 3000C 8760 75 50 30 20 0...

  20. Impacts of Soil and Pipe Thermal Conductivity on Performance of Horizontal Pipe in a Ground-source Heat Pump

    E-Print Network [OSTI]

    Song, Y.; Yao, Y.; Na, W.

    2006-01-01T23:59:59.000Z

    In this paper the composition and thermal property of soil are discussed. The main factors that impact the soil thermal conductivity and several commonly-used pipe materials are studied. A model of heat exchanger with horizontal pipes of ground-source...