National Library of Energy BETA

Sample records for working gas injections

  1. Massachusetts Natural Gas Underground Storage Injections All...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Massachusetts Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 ...

  2. Coke oven gas injection to blast furnaces

    SciTech Connect

    Maddalena, F.L.; Terza, R.R.; Sobek, T.F.; Myklebust, K.L.

    1995-12-01

    U.S. Steel has three major facilities remaining in Pennsylvania`s Mon Valley near Pittsburgh. The Clairton Coke Works operates 12 batteries which produce 4.7 million tons of coke annually. The Edgar Thomson Works in Braddock is a 2.7 million ton per year steel plant. Irvin Works in Dravosburg has a hot strip mill and a range of finishing facilities. The coke works produces 120 mmscfd of coke oven gas in excess of the battery heating requirements. This surplus gas is used primarily in steel re-heating furnaces and for boiler fuel to produce steam for plant use. In conjunction with blast furnace gas, it is also used for power generation of up to 90 MW. However, matching the consumption with the production of gas has proved to be difficult. Consequently, surplus gas has been flared at rates of up to 50 mmscfd, totaling 400 mmscf in several months. By 1993, several changes in key conditions provided the impetus to install equipment to inject coke oven gas into the blast furnaces. This paper describes the planning and implementation of a project to replace natural gas in the furnaces with coke oven gas. It involved replacement of 7 miles of pipeline between the coking plants and the blast furnaces, equipment capable of compressing coke oven gas from 10 to 50 psig, and installation of electrical and control systems to deliver gas as demanded.

  3. Sequential injection gas guns for accelerating projectiles

    DOEpatents

    Lacy, Jeffrey M.; Chu, Henry S.; Novascone, Stephen R.

    2011-11-15

    Gas guns and methods for accelerating projectiles through such gas guns are described. More particularly, gas guns having a first injection port located proximate a breech end of a barrel and a second injection port located longitudinally between the first injection port and a muzzle end of the barrel are described. Additionally, modular gas guns that include a plurality of modules are described, wherein each module may include a barrel segment having one or more longitudinally spaced injection ports. Also, methods of accelerating a projectile through a gas gun, such as injecting a first pressurized gas into a barrel through a first injection port to accelerate the projectile and propel the projectile down the barrel past a second injection port and injecting a second pressurized gas into the barrel through the second injection port after passage of the projectile and to further accelerate the projectile are described.

  4. Determining How Magnetic Helicity Injection Really Works

    SciTech Connect

    Paul M. Bellan

    2001-10-09

    OAK-B135 The goal of the Caltech program is to determine how helicity injection works by investigating the actual dynamics and topological evolution associated with magnetic relaxation. A new coaxial helicity injection source has been constructed and brought into operation. The key feature of this source is that it has maximum geometric simplicity. Besides being important for fusion research, this work also has astrophysical implications. Photos obtained using high-speed cameras show a clear sequence of events in the formation process. In particular, they show initial merging/reconnection processes, jet-like expansion, kinking, and separation of the plasma from the source. Various diagnostics have been developed, including laser induced fluorescence and soft x-ray detection using high speed diodes. Gas valves have been improved and a patent disclosure relating to puffed gas valves has been filed. Presentations on this work have been given in the form of invited talks at several university physics departments that were previously unfamiliar with laboratory plasma experiments.

  5. Working Gas Capacity

    Energy Information Administration (EIA) (indexed site)

    5 2015 Working Gas Capacity (billion cubic feet) ≥ 100 75 to 99 U.S. Energy Information Administration | Natural Gas Annual Figure 15. Locations of existing natural gas underground storage fields in the United States, 2015 50 to 74 Source: Energy Information Administration (EIA), Form EIA-191, "Monthly Underground Gas Storage Report." Reservoir Type Sites = Depleted Field 329 = Salt Cav

  6. Gas Injection Apparatus for Vacuum Chamber

    SciTech Connect

    Almabouada, F.; Louhibi, D.; Hamici, M.

    2011-12-26

    We present in this article a gas injection apparatus which comprises the gas injector and its electronic command for vacuum chamber applications. Some of these applications are thin-film deposition by a pulsed laser deposition (PLD) or a cathodic arc deposition (arc-PVD) and the plasma generation. The electronic part has been developed to adjust the flow of the gas inside the vacuum chamber by controlling both of the injector's opening time and the repetition frequency to allow a better gas flow. In this case, the system works either on a pulsed mode or a continuous mode for some applications. In addition, the repetition frequency can be synchronised with a pulsed laser by an external signal coming from the laser, which is considered as an advantage for users. Good results have been obtained using the apparatus and testing with Argon and Nitrogen gases.

  7. New Jersey Natural Gas Underground Storage Injections All Operators...

    Energy Information Administration (EIA) (indexed site)

    Underground Storage Injections All Operators (Million Cubic Feet) New Jersey Natural Gas ... Injections of Natural Gas into Underground Storage - All Operators New Jersey Underground ...

  8. Flue gas injection control of silica in cooling towers. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Flue gas injection control of silica in cooling towers. Citation Details In-Document Search Title: Flue gas injection control of silica in cooling towers. ...

  9. Direct liquid injection of liquid petroleum gas

    SciTech Connect

    Lewis, D.J.; Phipps, J.R.

    1984-02-14

    A fuel injector and injection system for injecting liquified petroleum gas (LPG) into at least one air/fuel mixing chamber from a storage means that stores pressurized LPG in its liquid state. The fuel injector (including a body), adapted to receive pressurized LPG from the storage means and for selectively delivering the LPG to the air/fuel mixing chamber in its liquified state. The system including means for correcting the injector activation signal for pressure and density variations in the fuel.

  10. Wisconsin Natural Gas Underground Storage Injections All Operators...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Wisconsin Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 ...

  11. Delaware Natural Gas Underground Storage Injections All Operators...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Delaware Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 ...

  12. Connecticut Natural Gas Underground Storage Injections All Operators...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Connecticut Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 ...

  13. North Carolina Natural Gas Underground Storage Injections All...

    Energy Information Administration (EIA) (indexed site)

    Underground Storage Injections All Operators (Million Cubic Feet) North Carolina Natural ... Injections of Natural Gas into Underground Storage - All Operators North Carolina ...

  14. Working Gas in Underground Storage Figure

    Annual Energy Outlook

    Working Gas in Underground Storage Figure Working Gas in Underground Storage Figure Working Gas in Underground Storage Compared with 5-Year Range Graph....

  15. GAS INJECTION/WELL STIMULATION PROJECT

    SciTech Connect

    John K. Godwin

    2005-12-01

    Driver Production proposes to conduct a gas repressurization/well stimulation project on a six well, 80-acre portion of the Dutcher Sand of the East Edna Field, Okmulgee County, Oklahoma. The site has been location of previous successful flue gas injection demonstration but due to changing economic and sales conditions, finds new opportunities to use associated natural gas that is currently being vented to the atmosphere to repressurize the reservoir to produce additional oil. The established infrastructure and known geological conditions should allow quick startup and much lower operating costs than flue gas. Lessons learned from the previous project, the lessons learned form cyclical oil prices and from other operators in the area will be applied. Technology transfer of the lessons learned from both projects could be applied by other small independent operators.

  16. Development of the High-Pressure Direct-Injection ISX G Natural Gas Engine

    SciTech Connect

    Not Available

    2004-08-01

    Fact sheet details work by Cummins and Westport Innovations to develop a heavy-duty, low-NOx, high-pressure direct-injection natural gas engine for the Next Generation Natural Gas Vehicle activity.

  17. Flue gas injection control of silica in cooling towers. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Flue gas injection control of silica in cooling towers. Citation Details In-Document Search Title: Flue gas injection control of silica in cooling towers. You are accessing a ...

  18. Virginia Natural Gas in Underground Storage (Working Gas) (Million...

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Virginia Natural Gas in Underground Storage (Working ... Underground Working Natural Gas in Storage - All Operators Virginia Underground Natural ...

  19. New Mexico Natural Gas in Underground Storage (Working Gas) ...

    Gasoline and Diesel Fuel Update

    Working Gas) (Million Cubic Feet) New Mexico Natural Gas in Underground Storage (Working ... Underground Working Natural Gas in Storage - All Operators New Mexico Underground Natural ...

  20. New York Natural Gas in Underground Storage (Working Gas) (Million...

    Annual Energy Outlook

    Working Gas) (Million Cubic Feet) New York Natural Gas in Underground Storage (Working ... Underground Working Natural Gas in Storage - All Operators New York Underground Natural ...

  1. Working Gas in Underground Storage Figure

    Annual Energy Outlook

    Gas in Underground Storage Figure Working Gas in Underground Storage Compared with 5-Year Range Graph...

  2. Total Working Gas Capacity

    Gasoline and Diesel Fuel Update

    Confidential Presentation to: April 7, 2008 Middle East oil demand and Lehman Brothers oil price outlook Adam Robinson Middle East oil demand u Three pillars of Middle East oil demand - Petrodollar reinvestment - Purchasing power rise - Power sector constraints u Natural gas shortages for power generation mean balance of risks to any Middle East oil demand forecast are firmly to the upside, adding to summer upside seasonality u Lehman Brothers has pegged 3Q08 as the tightest quarter of the

  3. Working Gas in Underground Storage Figure

    Gasoline and Diesel Fuel Update

    Working Gas in Underground Storage Figure Working Gas in Underground Storage Compared with 5-Year Range Graph.

  4. Idaho Natural Gas Underground Storage Injections All Operators...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Idaho Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 ...

  5. Alaska Natural Gas Underground Storage Injections All Operators...

    Gasoline and Diesel Fuel Update

    Injections All Operators (Million Cubic Feet) Alaska Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 ...

  6. Georgia Natural Gas Underground Storage Injections All Operators...

    Annual Energy Outlook

    Injections All Operators (Million Cubic Feet) Georgia Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 ...

  7. Iowa Natural Gas Injections into Underground Storage (Million...

    Energy Information Administration (EIA) (indexed site)

    Injections into Underground Storage (Million Cubic Feet) Iowa Natural Gas Injections into Underground Storage (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov...

  8. Washington Natural Gas in Underground Storage (Working Gas) ...

    Annual Energy Outlook

    Working Gas) (Million Cubic Feet) Washington Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 8,882...

  9. Kentucky Natural Gas in Underground Storage (Working Gas) (Million...

    Gasoline and Diesel Fuel Update

    Working Gas) (Million Cubic Feet) Kentucky Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 58,567 ...

  10. Indiana Natural Gas in Underground Storage (Working Gas) (Million...

    Gasoline and Diesel Fuel Update

    Working Gas) (Million Cubic Feet) Indiana Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 22,371 ...

  11. Colorado Natural Gas in Underground Storage (Working Gas) (Million...

    Gasoline and Diesel Fuel Update

    Working Gas) (Million Cubic Feet) Colorado Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 27,491 ...

  12. Illinois Natural Gas in Underground Storage (Working Gas) (Million...

    Gasoline and Diesel Fuel Update

    Working Gas) (Million Cubic Feet) Illinois Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 234,149 ...

  13. Iowa Natural Gas in Underground Storage (Working Gas) (Million...

    Annual Energy Outlook

    Working Gas) (Million Cubic Feet) Iowa Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 74,086 66,477 ...

  14. Kansas Natural Gas in Underground Storage (Working Gas) (Million...

    Annual Energy Outlook

    Working Gas) (Million Cubic Feet) Kansas Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 65,683 ...

  15. Oregon Natural Gas in Underground Storage (Working Gas) (Million...

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Oregon Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 3,705 2,366 ...

  16. Pennsylvania Natural Gas in Underground Storage (Working Gas...

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Pennsylvania Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 ...

  17. Oklahoma Natural Gas in Underground Storage (Working Gas) (Million...

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Oklahoma Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 129,245 ...

  18. Development of the High-Pressure Direct-Injected, Ultra Low-NOx Natural Gas Engine: Final Report

    SciTech Connect

    Duggal, V. K.; Lyford-Pike, E. J.; Wright, J. F.; Dunn, M.; Goudie, D.; Munshi, S.

    2004-05-01

    Subcontractor report details work done by Cummins and Westport Innovations to develop a heavy-duty, low-NOx, high-pressure direct-injection natural gas engine for the Next Generation Natural Gas Vehicle activity.

  19. Peak Underground Working Natural Gas Storage Capacity

    Gasoline and Diesel Fuel Update

    Definitions Definitions Since 2006, EIA has reported two measures of aggregate capacity, one based on demonstrated peak working gas storage, the other on working gas design capacity. Demonstrated Peak Working Gas Capacity: This measure sums the highest storage inventory level of working gas observed in each facility over the 5-year range from May 2005 to April 2010, as reported by the operator on the Form EIA-191M, "Monthly Underground Gas Storage Report." This data-driven estimate

  20. How Gas Turbine Power Plants Work | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    How Gas Turbine Power Plants Work How Gas Turbine Power Plants Work The combustion (gas) turbines being installed in many of today's natural-gas-fueled power plants are complex machines, but they basically involve three main sections: The compressor, which draws air into the engine, pressurizes it, and feeds it to the combustion chamber at speeds of hundreds of miles per hour. The combustion system, typically made up of a ring of fuel injectors that inject a steady stream of fuel into combustion

  1. Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction

    DOEpatents

    Rosocha, Louis A.

    2006-06-20

    A device for processing gases includes a cylindrical housing in which an electrically grounded, metal injection/extraction gas supply tube is disposed. A dielectric tube surrounds the injection/extraction gas supply tube to establish a gas modification passage therearound. Additionally, a metal high voltage electrode circumscribes the dielectric tube. The high voltage electrode is energizable to create nonthermal electrical microdischarges between the high voltage electrode and the injection/extraction gas supply tube across the dielectric tube within the gas modification passage. An injection/extraction gas and a process gas flow through the nonthermal electrical microdischarges within the gas modification passage and a modified process gas results. Using the device contaminants that are entrained in the process gas can be destroyed to yield a cleaner, modified process gas.

  2. AGA Western Consuming Region Natural Gas Injections into Underground...

    Energy Information Administration (EIA) (indexed site)

    AGA Western Consuming Region Natural Gas Injections into Underground Storage (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 2,449 542 13,722 29,089 ...

  3. South Carolina Natural Gas Underground Storage Injections All Operators

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Underground Storage Injections All Operators (Million Cubic Feet) South Carolina Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 48 80 70 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Injections of Natural Gas

  4. South Central Region Natural Gas Working Underground Storage Capacity

    Gasoline and Diesel Fuel Update

    * * 17 9 1967-2015 Propane-Air 0 0 17 9 1980-201

    Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 1973 1974 1975 View History Net Withdrawals -6 -27 46 1973-1975 Injections 48 80 70 1973-1975 Withdrawals 42 53 116 1973-197

    in Working Gas from Same Month Previous Year (Percent)

    Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous

  5. DISRUPTION MITIGATION WITH HIGH-PRESSURE NOBLE GAS INJECTION

    SciTech Connect

    WHYTE, DG; JERNIGAN, TC; HUMPHREYS, DA; HYATT, AW; LASNIER, CJ; PARKS, PB; EVANS, TE; TAYLOR, PL; KELLMAN, AG; GRAY, DS; HOLLMANN, EM

    2002-10-01

    OAK A271 DISRUPTION MITIGATION WITH HIGH-PRESSURE NOBLE GAS INJECTION. High-pressure gas jets of neon and argon are used to mitigate the three principal damaging effects of tokamak disruptions: thermal loading of the divertor surfaces, vessel stress from poloidal halo currents and the buildup and loss of relativistic electrons to the wall. The gas jet penetrates as a neutral species through to the central plasma at its sonic velocity. The injected gas atoms increase up to 500 times the total electron inventory in the plasma volume, resulting in a relatively benign radiative dissipation of >95% of the plasma stored energy. The rapid cooling and the slow movement of the plasma to the wall reduce poloidal halo currents during the current decay. The thermally collapsed plasma is very cold ({approx} 1-2 eV) and the impurity charge distribution can include > 50% fraction neutral species. If a sufficient quantity of gas is injected, the neutrals inhibit runaway electrons. A physical model of radiative cooling is developed and validated against DIII-D experiments. The model shows that gas jet mitigation, including runaway suppression, extrapolates favorably to burning plasmas where disruption damage will be more severe. Initial results of real-time disruption detection triggering gas jet injection for mitigation are shown.

  6. Rhode Island Natural Gas Underground Storage Injections All Operators

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Underground Storage Injections All Operators (Million Cubic Feet) Rhode Island Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 97 243 137 1990's 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Injections of

  7. Rhode Island Natural Gas Underground Storage Injections All Operators

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Rhode Island Natural Gas Underground Storage Injections All Operators (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Injections of Natural Gas into Underground

  8. Philadelphia Gas Works - Commercial and Industrial Equipment...

    Energy.gov [DOE] (indexed site)

    Administrator Philadelphia Gas Works Website http:www.pgwenergysense.comdownloads.html State Pennsylvania Program Type Rebate Program Rebate Amount Commercial Boilers: 800 -...

  9. Prediction of Gas Injection Performance for Heterogeneous Reservoirs

    SciTech Connect

    Blunt, M.J.; Orr, F.M. Jr.

    2001-03-26

    This report was an integrated study of the physics and chemistry affecting gas injection, from the pore scale to the field scale, and involved theoretical analysis, laboratory experiments and numerical simulation. Specifically, advances were made on streamline-based simulation, analytical solutions to 1D compositional displacements, and modeling and experimental measures of three-phase flow.

  10. Peak Underground Working Natural Gas Storage Capacity

    Gasoline and Diesel Fuel Update

    Methodology Methodology Demonstrated Peak Working Gas Capacity Estimates: Estimates are based on aggregation of the noncoincident peak levels of working gas inventories at individual storage fields as reported monthly over a 60-month period ending in April 2010 on Form EIA-191M, "Monthly Natural Gas Underground Storage Report." The months of measurement for the peak storage volumes by facilities may differ; i.e., the months do not necessarily coincide. As such, the noncoincident peak

  11. Utility flue gas mercury control via sorbent injection

    SciTech Connect

    Chang, R.; Carey, T.; Hargrove, B.

    1996-12-31

    The potential for power plant mercury control under Title III of the 1990 Clean Air Act Amendments generated significant interest in assessing whether cost effective technologies are available for removing the mercury present in fossil-fired power plant flue gas. One promising approach is the direct injection of mercury sorbents such as activated carbon into flue gas. This approach has been shown to be effective for mercury control from municipal waste incinerators. However, tests conducted to date on utility fossil-fired boilers show that it is much more difficult to remove the trace species of mercury present in flue gas. EPRI is conducting research in sorbent mercury control including bench-scale evaluation of mercury sorbent activity and capacity with simulated flue gas, pilot testing under actual flue gas conditions, evaluation of sorbent regeneration and recycle options, and the development of novel sorbents. A theoretical model that predicts maximum mercury removals achievable with sorbent injection under different operating conditions is also being developed. This paper presents initial bench-scale and model results. The results to date show that very fine and large amounts of sorbents are needed for mercury control unless long residence times are available for sorbent-mercury contact. Also, sorbent activity and capacity are highly dependent on flue gas composition, temperature, mercury species, and sorbent properties. 10 refs., 4 figs., 2 tabs.

  12. AGA Producing Region Natural Gas Injections into Underground Storage

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Gas Injections into Underground Storage (Million Cubic Feet) AGA Producing Region Natural Gas Injections into Underground Storage (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 20,366 29,330 55,297 93,538 129,284 83,943 104,001 98,054 88,961 65,486 49,635 27,285 1995 24,645 25,960 57,833 78,043 101,019 100,926 77,411 54,611 94,759 84,671 40,182 33,836 1996 34,389 48,922 38,040 76,100 98,243 88,202 88,653 109,284 125,616 91,618 37,375

  13. East Region Natural Gas Injections into Underground Storage (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Gas Injections into Underground Storage (Million Cubic Feet) East Region Natural Gas Injections into Underground Storage (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 16,843 6,411 17,023 86,311 133,867 127,512 86,944 99,113 102,640 71,127 33,857 19,392 2014 9,107 10,259 22,569 71,857 144,145 132,960 120,491 118,493 122,207 94,669 33,103 25,810 2015 8,399 5,034 16,192 88,291 149,749 130,181 108,902 114,713 101,145 71,500 40,008 27,824 2016 8,190 15,514

  14. DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS Citation Details In-Document Search Title: DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS You ...

  15. DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS (Technical...

    Office of Scientific and Technical Information (OSTI)

    DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS Citation Details In-Document Search Title: DUS II SOIL GAS SAMPLING AND AIR INJECTION TEST RESULTS Soil vapor extraction ...

  16. Stratified charge injection for gas-fueled rotary engines

    SciTech Connect

    King, S.R.

    1992-03-10

    This patent describes a stratified charge injection for gas-fueled rotary engines having an air intake stroke, a compression stroke, a power stroke, and an exhaust stroke. It comprises a rotor housing, the housing including an air intake port and an exhaust port, and an outer perimeter, a rotor rotatable in the housing, a gaseous fuel injector supplying all of the fuel is connected to the housing between 270{degrees} and 360{degrees} of the rotor rotation after compression top dead center and downstream of the air intake port, the injector providing gaseous fuel at a pressure less than peak compression pressure, the injector located in the middle of the width of the outer perimeter of the housing, spark ignition means in the housing downstream of the injector, and means connected to the fuel injector responsive to the compression pressure for controlling the rate and duration of fuel injection.

  17. Acid-gas injection encounters diverse H{sub 2}S, water phase changes

    SciTech Connect

    Carroll, J.J.

    1998-03-09

    For acid-gas injection systems, pressure-composition diagrams indicate the significant phase changes that H{sub 2}S and water mixtures can undergo when going from an amine unit to downhole in an injection well. This conclusion of a two-part series describes the importance of considering H{sub 2}S and water phase changes in the design of acid gas injection compressors, pipelines, injection wells, and methanol injection.

  18. Tennessee Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Tennessee Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 459 343 283 199 199 199 333 467 579 682 786 787 1999 656 532 401 321 318 462 569 645 749 854 911 855 2000 691 515 452 389 371 371 371 371 371 420 534 619 2001 623 563 490 421 525 638 669 732 778 840 598 597 2002 647 648 650 650 625 622 609 605 602 600 512 512 2003 404 294 226 179 214 290

  19. Louisiana Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Louisiana Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 115,418 117,492 109,383 110,052 117,110 131,282 145,105 158,865 173,570 188,751 197,819 190,747 1991 141,417 109,568 96,781 103,300 122,648 146,143 159,533 169,329 190,953 211,395 197,661 165,940 1992 120,212 91,394 79,753 85,867 106,675 124,940 136,861 152,715 174,544 194,414 187,236 149,775 1993 103,287 66,616

  20. Michigan Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Michigan Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 311,360 252,796 228,986 221,127 269,595 333,981 410,982 481,628 534,303 553,823 542,931 472,150 1991 348,875 285,217 262,424 287,946 315,457 372,989 431,607 478,293 498,086 539,454 481,257 405,327 1992 320,447 244,921 179,503 179,306 224,257 292,516 367,408 435,817 504,312 532,896 486,495 397,280 1993 296,403 194,201

  1. Montana Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Montana Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 184,212 180,918 178,620 181,242 179,235 181,374 183,442 187,348 185,848 181,029 1991 179,697 178,285 176,975 176,918 178,145 179,386 181,094 182,534 182,653 181,271 178,539 174,986 1992 111,256 109,433 109,017 109,150 110,146 110,859 111,885 112,651 112,225 110,868 107,520 101,919 1993 96,819 92,399 89,640 87,930

  2. Alabama Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Alabama Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1995 499 497 233 233 260 302 338 556 1,148 1,075 886 485 1996 431 364 202 356 493 971 1,164 1,553 1,891 2,008 1,879 1,119 1997 588 404 429 559 830 923 966 1,253 1,515 1,766 1,523 1,523 1998 773 585 337 582 727 1,350 1,341 1,540 1,139 1,752 1,753 1,615 1999 802 688 376 513 983 1,193 1,428 1,509 1,911 1,834 1,968 1,779 2000

  3. California Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) California Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 125,898 106,575 111,248 132,203 157,569 170,689 174,950 177,753 182,291 196,681 196,382 153,841 1991 132,323 132,935 115,982 136,883 163,570 187,887 201,443 204,342 199,994 199,692 193,096 168,789 1992 125,777 109,000 93,277 107,330 134,128 156,158 170,112 182,680 197,049 207,253 197,696 140,662 1993 106,890 87,612

  4. AGA Producing Region Natural Gas in Underground Storage (Working Gas)

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Working Gas) (Million Cubic Feet) AGA Producing Region Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 393,598 297,240 289,617 356,360 461,202 516,155 604,504 678,168 747,928 783,414 775,741 673,670 1995 549,759 455,591 416,294 457,969 533,496 599,582 638,359 634,297 713,319 766,411 700,456 552,458 1996 369,545 263,652 195,447 224,002 279,731 339,263 391,961 474,402 578,991 638,500 562,097

  5. Mountain Region Natural Gas in Underground Storage (Working Gas...

    Gasoline and Diesel Fuel Update

    Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 137,378 102,507 83,983 82,058 98,717 121,623 140,461 157,716 174,610 187,375...

  6. Pacific Region Natural Gas in Underground Storage (Working Gas...

    Energy Information Administration (EIA) (indexed site)

    Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 197,953 115,235 104,941 144,268 200,453 249,196 274,725 302,752 318,020...

  7. ,"U.S. Natural Gas Salt Underground Storage Activity-Injects...

    Energy Information Administration (EIA) (indexed site)

    ...dnavnghistn5440us2m.htm" ,"Source:","Energy Information Administration" ,"For Help, ... 1: U.S. Natural Gas Salt Underground Storage Activity-Injects (MMcf)" ...

  8. Maryland Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Maryland Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 4,303 1,142 2,247 2,979 5,536 6,593 8,693 11,353 13,788 15,025 12,900 11,909 1991 8,772 5,481 3,859 4,780 6,264 7,917 9,321 11,555 13,665 14,339 14,626 14,529 1992 9,672 4,736 2,075 1,178 4,484 7,172 8,993 11,380 13,446 14,695 15,205 13,098 1993 9,826 5,478 3,563 3,068 5,261 6,437 7,528 9,247 11,746 14,426 14,826

  9. Minnesota Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Minnesota Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 1,708 1,141 1,211 1,688 2,017 2,129 2,261 2,309 2,370 2,397 2,395 2,007 1991 1,551 1,313 1,207 1,362 1,619 1,931 2,222 2,214 2,307 2,273 2,191 2,134 1992 1,685 1,556 1,228 1,019 1,409 1,716 2,013 2,193 2,319 2,315 2,307 2,104 1993 1,708 1,290 872 824 1,141 1,485 1,894 2,022 2,260 2,344 2,268 1,957 1994 1,430 1,235

  10. Mississippi Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Mississippi Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 33,234 33,553 34,322 39,110 43,935 47,105 53,425 58,298 62,273 65,655 66,141 60,495 1991 43,838 39,280 39,196 45,157 48,814 50,833 52,841 54,954 60,062 64,120 56,034 50,591 1992 40,858 39,723 37,350 37,516 41,830 46,750 51,406 51,967 58,355 59,621 59,164 52,385 1993 46,427 38,859 32,754 35,256 42,524 46,737 51,884

  11. Missouri Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Missouri Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 8,081 5,796 6,047 7,156 7,151 7,146 7,140 7,421 7,927 8,148 8,157 7,869 1991 7,671 5,875 4,819 6,955 7,638 7,738 8,033 8,335 8,547 8,765 8,964 8,952 1992 7,454 6,256 5,927 7,497 7,924 8,071 8,337 8,555 8,763 8,954 8,946 8,939 1993 7,848 6,037 4,952 6,501 7,550 8,001 8,104 8,420 8,627 8,842 8,720 8,869 1994 7,602 7,073

  12. Nebraska Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Nebraska Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 55,226 54,179 53,869 54,783 56,160 57,690 56,165 56,611 57,708 58,012 57,606 54,005 1991 52,095 51,060 50,341 51,476 54,531 56,673 56,409 56,345 57,250 56,941 56,535 54,163 1992 52,576 51,568 51,525 52,136 53,768 56,396 58,446 59,656 60,842 60,541 57,948 54,512 1993 51,102 49,136 48,100 49,069 52,016 55,337 57,914

  13. Alaska Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Alaska Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 8,956 13,913 13,743 14,328 15,277 16,187 17,087 18,569 20,455 22,149 21,244 19,819 2014 20,043 19,668 20,566 20,447 20,705 22,252 22,508 23,254 23,820 23,714 24,272 24,997 2015 24,811 24,626 24,391 24,208 24,279 24,357 24,528 24,635 24,543 24,595 24,461 24,319 2016 24,295 24,790 25,241 26,682 28,639 30,108 32,084 34,081

  14. Arkansas Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Arkansas Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 8,676 8,646 8,608 8,644 8,745 9,217 9,744 10,226 10,505 10,532 10,454 10,227 1991 8,296 7,930 7,609 7,414 7,545 7,884 8,371 8,385 8,385 8,385 7,756 7,093 1992 6,440 5,922 5,569 5,501 5,499 6,009 6,861 7,525 7,959 7,883 7,656 7,166 1993 6,541 5,752 5,314 5,204 4,696 4,969 4,969 4,969 4,969 4,897 4,421 3,711 1994 2,383

  15. Wyoming Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Wyoming Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 53,604 51,563 52,120 53,225 54,581 56,980 58,990 61,428 62,487 60,867 1991 54,085 53,423 53,465 53,581 54,205 56,193 58,416 60,163 61,280 61,366 59,373 57,246 1992 30,371 28,356 27,542 27,461 27,843 28,422 29,588 29,692 30,555 29,505 27,746 23,929 1993 20,529 18,137 17,769 18,265 19,253 21,322 23,372 24,929 26,122

  16. First AEO2015 Oil and Gas Working Group Meeting Summary

    Energy Information Administration (EIA) (indexed site)

    TEAM EXPLORATION AND PRODUCTION and NATURAL GAS MARKETS TEAMS SUBJECT: First AEO2015 Oil and Gas Working Group ... to High Resource case * World oil price outlooks based on ...

  17. Pennsylvania Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Pennsylvania Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -2,863 -1,902 -2,297 -1,134 -1,671 -1,997 -907 -144 629 992 2,290 1,354 1991 30,778 27,964 37,141 36,920 15,424 -18,322 -46,969 -63,245 -61,004 -48,820 -54,587 -34,458 1992 6,870 -8,479 -43,753 -43,739 -33,236 -8,601 3,190 9,732 8,583 15,815

  18. Alternative Fuels Data Center: How Do Natural Gas Cars Work?

    Alternative Fuels and Advanced Vehicles Data Center

    Natural Gas Cars Work? to someone by E-mail Share Alternative Fuels Data Center: How Do Natural Gas Cars Work? on Facebook Tweet about Alternative Fuels Data Center: How Do Natural ...

  19. Weekly Working Gas in Underground Storage

    Energy Information Administration (EIA) (indexed site)

    Working Gas in Underground Storage (Billion Cubic Feet) Period: Weekly Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Region 10/07/16 10/14/16 10/21/16 10/28/16 11/04/16 11/11/16 View History Total Lower 48 States 3,759 3,836 3,909 3,963 4,017 4,047 2010-2016 East 913 925 939 940 946 944 2010-2016 Midwest 1,071 1,093 1,115 1,130 1,148 1,155 2010-2016 Mountain 240 243 245 249 253 257 2010-2016 Pacific 323 325 326 326 327 328

  20. Apparatus and method to inject a reductant into an exhaust gas feedstream

    DOEpatents

    Viola, Michael B.

    2009-09-22

    An exhaust aftertreatment system for an internal combustion engine is provided including an apparatus and method to inject a reductant into the exhaust gas feedstream. Included is a fuel metering device adapted to inject reductant into the exhaust gas feedstream and a controllable pressure regulating device. A control module is operatively connected to the reductant metering device and the controllable pressure regulating device, and, adapted to effect flow of reductant into the exhaust gas feedstream over a controllable flow range.

  1. Philadelphia Gas Works: Who’s on First?

    Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—about the Philadelphia Gas Works (PGW) and its federal projects.

  2. Pennsylvania Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Percent) Percent) Pennsylvania Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 18.8 22.4 37.0 33.4 9.7 -8.5 -17.7 -19.9 -17.0 -13.4 -15.2 -11.2 1992 3.5 -5.5 -31.8 -29.7 -19.1 -4.4 1.5 3.8 2.9 5.0 9.1 6.0 1993 8.3 -16.5 -29.1 -13.2 -5.0 -0.1 5.0 3.1 4.8 0.9 -1.5 -3.3 1994 -21.0 -19.2 13.5 27.9 24.0 18.3 16.9 15.8 5.8 6.1 2.3 5.6 1995 35.1 43.1 48.4 8.5

  3. A combined saline formation and gas reservoir CO2 injection pilotin Northern California

    SciTech Connect

    Trautz, Robert; Myer, Larry; Benson, Sally; Oldenburg, Curt; Daley, Thomas; Seeman, Ed

    2006-04-28

    A geologic sequestration pilot in the Thornton gas field in Northern California, USA involves injection of up to 4000 tons of CO{sub 2} into a stacked gas and saline formation reservoir. Lawrence Berkeley National Laboratory (LBNL) is leading the pilot test in collaboration with Rosetta Resources, Inc. and Calpine Corporation under the auspices of the U.S. Department of Energy and California Energy Commission's WESTCARB, Regional Carbon Sequestration Partnership. The goals of the pilot include: (1) Demonstrate the feasibility of CO{sub 2} storage in saline formations representative of major geologic sinks in California; (2) Test the feasibility of Enhanced Gas Recovery associated with the early stages of a CO{sub 2} storage project in a depleting gas field; (3) Obtain site-specific information to improve capacity estimation, risk assessment, and performance prediction; (4) Demonstrate and test methods for monitoring CO{sub 2} storage in saline formations and storage/enhanced recovery projects in gas fields; and (5) Gain experience with regulatory permitting and public outreach associated with CO{sub 2} storage in California. Test design is currently underway and field work begins in August 2006.

  4. Assessment of Factors Influencing Effective CO{sub 2} Storage Capacity and Injectivity in Eastern Gas Shales

    SciTech Connect

    Godec, Michael

    2013-06-30

    Building upon advances in technology, production of natural gas from organic-rich shales is rapidly developing as a major hydrocarbon supply option in North America and around the world. The same technology advances that have facilitated this revolution - dense well spacing, horizontal drilling, and hydraulic fracturing - may help to facilitate enhanced gas recovery (EGR) and carbon dioxide (CO{sub 2}) storage in these formations. The potential storage of CO {sub 2} in shales is attracting increasing interest, especially in Appalachian Basin states that have extensive shale deposits, but limited CO{sub 2} storage capacity in conventional reservoirs. The goal of this cooperative research project was to build upon previous and on-going work to assess key factors that could influence effective EGR, CO{sub 2} storage capacity, and injectivity in selected Eastern gas shales, including the Devonian Marcellus Shale, the Devonian Ohio Shale, the Ordovician Utica and Point Pleasant shale and equivalent formations, and the late Devonian-age Antrim Shale. The project had the following objectives: (1) Analyze and synthesize geologic information and reservoir data through collaboration with selected State geological surveys, universities, and oil and gas operators; (2) improve reservoir models to perform reservoir simulations to better understand the shale characteristics that impact EGR, storage capacity and CO{sub 2} injectivity in the targeted shales; (3) Analyze results of a targeted, highly monitored, small-scale CO{sub 2} injection test and incorporate into ongoing characterization and simulation work; (4) Test and model a smart particle early warning concept that can potentially be used to inject water with uniquely labeled particles before the start of CO{sub 2} injection; (5) Identify and evaluate potential constraints to economic CO{sub 2} storage in gas shales, and propose development approaches that overcome these constraints; and (6) Complete new basin

  5. ,"U.S. Natural Gas Non-Salt Underground Storage - Working Gas...

    Energy Information Administration (EIA) (indexed site)

    Natural Gas Non-Salt Underground Storage - Working Gas (MMcf)",1,"Monthly","2...dnavnghistn5510us2m.htm" ,"Source:","Energy Information Administration" ,"For Help, ...

  6. Two-tank working gas storage system for heat engine

    SciTech Connect

    Hindes, C.J.

    1987-04-07

    This patent describes a working gas control system for use in connection with a hot gas engine including a power controller for admitting the working gas to the engine to increase engine power and for releasing working gas from the engine to decrease engine power. A compressor compresses the working gas released from the engine. Storage vessels are included for storing the working gas received from the compressor and supplying the gas through the power controller to the engine. Each vessel stores the working gas at a different pressure. A valve means selectively couples the vessels to the controller and selectively couples the vessels to the compressor so that the selected vessel can supply the working gas to the engine or receive the gas from the compressor. Respective gas lines connect the valve means with the compressor and the power controller. The improvement described here is wherein the vessels include a high pressure vessel and a low pressure vessel. The valve means includes a low-pressure solenoid two-position valve on the line to the low pressure vessel, a first portion permitting flow of the gas in either direction, a second position permitting flow only in the direction towards the engine; and a high-pressure solenoid two-position valve on the line to the high-pressure vessel. One position permits flow of the gas in either direction; the other position permits flow only in the direction towards the high-pressure vessel.

  7. Effects of gas injection condition on mixing efficiency in the ladle refining process

    SciTech Connect

    Pan, S.M.; Chiang, J.D.; Hwang, W.S.

    1997-02-01

    The aim of this research was to investigate the effects of injection condition on the mixing efficiency of the gas injection treatment of the ladle refining process in steelmaking. A water modeling approach was employed. A NaCl solution was injected into the vessel and the electric conductivity value of the water solution was measured to represent the concentration of the additive. The results of this investigation reveal that up to a certain level, mixing efficiency is improved as the gas flow rate increases. Off-center injection is better than centerline injection. However, the injection lance should not be too close to the wall. Also, mixing efficiency is improved when the submerged depth of the immersion lance increases. The immersion hood has a optimal size as far as mixing efficiency is concerned. A larger or smaller hood would reduce its efficiency. The submerged depth of the immersion hood should be kept to a minimum to improve mixing efficiency.

  8. Calibraton of a Directly Injected Natural Gas HD Engine for Class...

    Energy.gov [DOE] (indexed site)

    This poster offers a comparison of high-pressure direct injection (HPDI) of natural gas engines with pilot diesel ignition with diesel engines used in heavy-duty diesel engine ...

  9. ,"U.S. Natural Gas Non-Salt Underground Storage Injections (MMcf...

    Energy Information Administration (EIA) (indexed site)

    ...dnavnghistn5540us2m.htm" ,"Source:","Energy Information Administration" ,"For Help, ... 1: U.S. Natural Gas Non-Salt Underground Storage Injections (MMcf)" "Sourcekey","N5540US2" ...

  10. Calibraton of a Directly Injected Natural Gas HD Engine for Class 8 Truck Applications

    Energy.gov [DOE]

    This poster offers a comparison of high-pressure direct injection (HPDI) of natural gas engines with pilot diesel ignition with diesel engines used in heavy-duty diesel engine applications

  11. Two-tank working gas storage system for heat engine

    DOEpatents

    Hindes, Clyde J.

    1987-01-01

    A two-tank working gas supply and pump-down system is coupled to a hot gas engine, such as a Stirling engine. The system has a power control valve for admitting the working gas to the engine when increased power is needed, and for releasing the working gas from the engine when engine power is to be decreased. A compressor pumps the working gas that is released from the engine. Two storage vessels or tanks are provided, one for storing the working gas at a modest pressure (i.e., half maximum pressure), and another for storing the working gas at a higher pressure (i.e., about full engine pressure). Solenoid valves are associated with the gas line to each of the storage vessels, and are selectively actuated to couple the vessels one at a time to the compressor during pumpdown to fill the high-pressure vessel with working gas at high pressure and then to fill the low-pressure vessel with the gas at low pressure. When more power is needed, the solenoid valves first supply the low-pressure gas from the low-pressure vessel to the engine and then supply the high-pressure gas from the high-pressure vessel. The solenoid valves each act as a check-valve when unactuated, and as an open valve when actuated.

  12. Two-tank working gas storage system for heat engine

    SciTech Connect

    Hindes, C.J.

    1987-04-07

    A two-tank working gas supply and pump-down system is coupled to a hot gas engine, such as a Stirling engine. The system has a power control valve for admitting the working gas to the engine when increased power is needed, and for releasing the working gas from the engine when engine power is to be decreased. A compressor pumps the working gas that is released from the engine. Two storage vessels or tanks are provided, one for storing the working gas at a modest pressure (i.e., half maximum pressure), and another for storing the working gas at a higher pressure (i.e., about full engine pressure). Solenoid valves are associated with the gas line to each of the storage vessels, and are selectively actuated to couple the vessels one at a time to the compressor during pumpdown to fill the high-pressure vessel with working gas at high pressure and then to fill the low-pressure vessel with the gas at low pressure. When more power is needed, the solenoid valves first supply the low-pressure gas from the low-pressure vessel to the engine and then supply the high-pressure gas from the high-pressure vessel. The solenoid valves each act as a check-valve when unactuated, and as an open valve when actuated. 6 figs.

  13. Virginia Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Percent) Virginia Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0.0 ...

  14. Washington Natural Gas in Underground Storage - Change in Working...

    Gasoline and Diesel Fuel Update

    Percent) Washington Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991...

  15. Washington Natural Gas in Underground Storage - Change in Working...

    Gasoline and Diesel Fuel Update

    Million Cubic Feet) Washington Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug...

  16. Philadelphia Gas Works- Residential and Commercial Construction Incentives Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Philadelphia Gas Works (PGW) provides incentives to developers, home builders and building owners that build new facilities or undergo gut-rehab projects to conserve gas beyond the level consumed...

  17. New York Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Percent) New York Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 9.4...

  18. Oklahoma Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Percent) Oklahoma Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -13.9 ...

  19. Oklahoma Natural Gas in Underground Storage - Change in Working...

    Annual Energy Outlook

    Million Cubic Feet) Oklahoma Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep ...

  20. New Mexico Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Percent) New Mexico Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 ...

  1. New Mexico Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Million Cubic Feet) New Mexico Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug ...

  2. Minnesota Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Percent) Minnesota Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -9.2 ...

  3. Minnesota Natural Gas in Underground Storage - Change in Working...

    Energy Information Administration (EIA) (indexed site)

    Million Cubic Feet) Minnesota Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep ...

  4. Injections of Natural Gas into Storage (Annual Supply & Disposition)

    Energy Information Administration (EIA) (indexed site)

    Citygate Price Residential Price Commercial Price Industrial Price Electric Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports By Pipeline LNG Exports Underground Storage Capacity Gas in Underground

  5. Philadelphia Gas Works- Residential and Small Business Equipment Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Philadelphia Gas Works' (PGW) Residential Heating Equipment rebates are available to all PGW residential or small business customers installing high efficiency boilers and furnaces, and programma...

  6. Federal Utility Partnership Working Group: Atlanta Gas Light Resources

    Energy.gov [DOE]

    Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—lists Altanta Gas Light (AGL) resources and features a map of its footprint.

  7. Peak Underground Working Natural Gas Storage Capacity

    Gasoline and Diesel Fuel Update

    Feet) Base Gas) (Million Cubic Feet) Pacific Region Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 272,719 272,719 272,719 272,719 272,719 272,719 258,434 258,434 258,434 258,434 258,434 258,736 2014 258,736 258,541 258,456 258,619 258,736 258,736 258,736 258,736 258,736 259,036 259,036 259,036 2015 259,036 259,036 259,036 259,036 259,036 259,036 259,036 259,036 259,036 259,331 259,331 259,331 2016 259,331 259,331

  8. Philadelphia Navy Yard: UESC Project with Philadelphia Gas Works

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—provides information on the Philadelphia Navy Yard's utility energy services contract (UESC) project with Philadelphia Gas Works (PGW).

  9. Industrial Compositional Streamline Simulation for Efficient and Accurate Prediction of Gas Injection and WAG Processes

    SciTech Connect

    Margot Gerritsen

    2008-10-31

    Gas-injection processes are widely and increasingly used for enhanced oil recovery (EOR). In the United States, for example, EOR production by gas injection accounts for approximately 45% of total EOR production and has tripled since 1986. The understanding of the multiphase, multicomponent flow taking place in any displacement process is essential for successful design of gas-injection projects. Due to complex reservoir geometry, reservoir fluid properties and phase behavior, the design of accurate and efficient numerical simulations for the multiphase, multicomponent flow governing these processes is nontrivial. In this work, we developed, implemented and tested a streamline based solver for gas injection processes that is computationally very attractive: as compared to traditional Eulerian solvers in use by industry it computes solutions with a computational speed orders of magnitude higher and a comparable accuracy provided that cross-flow effects do not dominate. We contributed to the development of compositional streamline solvers in three significant ways: improvement of the overall framework allowing improved streamline coverage and partial streamline tracing, amongst others; parallelization of the streamline code, which significantly improves wall clock time; and development of new compositional solvers that can be implemented along streamlines as well as in existing Eulerian codes used by industry. We designed several novel ideas in the streamline framework. First, we developed an adaptive streamline coverage algorithm. Adding streamlines locally can reduce computational costs by concentrating computational efforts where needed, and reduce mapping errors. Adapting streamline coverage effectively controls mass balance errors that mostly result from the mapping from streamlines to pressure grid. We also introduced the concept of partial streamlines: streamlines that do not necessarily start and/or end at wells. This allows more efficient coverage and avoids

  10. Philadelhia Gas Works (PGW) Doe Furnace Rule | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Philadelhia Gas Works (PGW) Doe Furnace Rule Philadelhia Gas Works (PGW) Doe Furnace Rule DOE Furnace Rule (111.99 KB) More Documents & Publications Focus Series: Philadelphia Energyworks: In the City of Brotherly Love, Sharing Know-How Leads to Sustainability The Better Buildings Neighborhood View -- December 2013 Collaborating With Utilities on Residential Energy Efficiency

  11. Working Together to Address Natural Gas Storage Safety | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Together to Address Natural Gas Storage Safety Working Together to Address Natural Gas Storage Safety April 1, 2016 - 11:15am Addthis Working Together to Address Natural Gas Storage Safety Franklin (Lynn) Orr Franklin (Lynn) Orr Under Secretary for Science and Energy Marie Therese Dominguez Marie Therese Dominguez Administrator, U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration As a part of the Administration's ongoing commitment to support

  12. Sour gas injection for use with in situ heat treatment

    DOEpatents

    Fowler, Thomas David

    2009-11-03

    Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing acidic gas to a subsurface formation is described herein. The method may include providing heat from one or more heaters to a portion of a subsurface formation; producing fluids that include one or more acidic gases from the formation using a heat treatment process. At least a portion of one of the acidic gases may be introduced into the formation, or into another formation, through one or more wellbores at a pressure below a lithostatic pressure of the formation in which the acidic gas is introduced.

  13. Gas-turbine cogeneration system with steam injection. Final report, April 1983-July 1989

    SciTech Connect

    Cain, W.G.

    1989-11-01

    A gas-turbine topping-cycle cogeneration system utilizing the Allison 501-KH gas turbine has been developed to specifically meet the needs of industrial cogenerators in the 2-10 MWe range. The steam-injected cogeneration system has been installed in the General Motors Hydra-Matic plant in Warren, Michigan. Operation of the cogeneration system commenced in June 1988. The cogeneration system was installed with sufficient instrumentation to allow performance monitoring over a one-year period. Tests measured the NOx and carbon monoxide emission levels and the effectiveness of the passive steam cleanup system. As expected, the measurements show the NOx emissions decreased as the steam injection rate was increased. Small amounts of steam injection seem to reduce the carbon monoxide emitted, but as the steam injection rate is increased further, the emitted levels of carbon monoxide increased significantly. The passive steam cleanup system was very effective at removing contaminants from the steam.

  14. Case history of pressure maintenance by gas injection in the 26R gravity drainage reservoir

    SciTech Connect

    Wei, M.H.; Yu, J.P.; Moore, D.M.; Ezekwe, N. ); Querin, M.E. ); Williams, L.L. )

    1992-01-01

    This paper is a field case history on the performance of the 26R Reservoir. This is a gravity drainage reservoir under pressure maintenance by crestal gas injection. The 26R Reservoir is a highly layered Stevens turbidite sandstone. The reservoir is located in the Naval Petroleum Reserve No. 1 (NPR{number sign}1) in Elk Hills, Kern County, California. The 26R Reservoir is contained within the steeply dipping southwestern limb of the 31S Anticline. The reservoir had an initial oil column of 1800 feet. Original oil-in-place (OOIP) was estimated at 424 million barrels. Pressure maintenance by crestal gas injection was initiated immediately after production began in October 1976. The total volume of gas injected is about 586 BCF. This exceeds one reservoir pore volume. Reservoir pressure has declined from 3030 psi to 2461 psi. This pressure decline believe to be due to migration of injected gas into the overlaying shale reservoirs. Under the gas injection pressure maintenance strategy, reserves are estimated to be approximately 212 million barrels. Reservoir studies have concluded that the aquifer at the base of the reservoir has been relatively inactive. Well recompletions, deepenings, and horizontal wells are used to improve oil recovery. An aggressive program of controlling gas production began in the mid 1980's by the installation of multiple packers and sleeves. As the gas-oil contact (GOC) has dropped, sand intervals have subsequently been isolated behind packers. A cased hole logging program was recently undertaken to identify possible remaining reserves in the gas cap. 15 refs., 24 figs., 2 tabs.

  15. Case history of pressure maintenance by gas injection in the 26R gravity drainage reservoir

    SciTech Connect

    Wei, M.H.; Yu, J.P.; Moore, D.M.; Ezekwe, N.; Querin, M.E.; Williams, L.L.

    1992-02-01

    This paper is a field case history on the performance of the 26R Reservoir. This is a gravity drainage reservoir under pressure maintenance by crestal gas injection. The 26R Reservoir is a highly layered Stevens turbidite sandstone. The reservoir is located in the Naval Petroleum Reserve No. 1 (NPR{number_sign}1) in Elk Hills, Kern County, California. The 26R Reservoir is contained within the steeply dipping southwestern limb of the 31S Anticline. The reservoir had an initial oil column of 1800 feet. Original oil-in-place (OOIP) was estimated at 424 million barrels. Pressure maintenance by crestal gas injection was initiated immediately after production began in October 1976. The total volume of gas injected is about 586 BCF. This exceeds one reservoir pore volume. Reservoir pressure has declined from 3030 psi to 2461 psi. This pressure decline believe to be due to migration of injected gas into the overlaying shale reservoirs. Under the gas injection pressure maintenance strategy, reserves are estimated to be approximately 212 million barrels. Reservoir studies have concluded that the aquifer at the base of the reservoir has been relatively inactive. Well recompletions, deepenings, and horizontal wells are used to improve oil recovery. An aggressive program of controlling gas production began in the mid 1980`s by the installation of multiple packers and sleeves. As the gas-oil contact (GOC) has dropped, sand intervals have subsequently been isolated behind packers. A cased hole logging program was recently undertaken to identify possible remaining reserves in the gas cap. 15 refs., 24 figs., 2 tabs.

  16. ,"U.S. Natural Gas Salt Underground Storage - Working Gas (MMcf...

    Energy Information Administration (EIA) (indexed site)

    1","U.S. Natural Gas Salt Underground Storage - Working Gas (MMcf)",1,"Monthly","2...dnavnghistn5410us2m.htm" ,"Source:","Energy Information Administration" ,"For Help, ...

  17. Peak Underground Working Natural Gas Storage Capacity

    Gasoline and Diesel Fuel Update

    Underground Storage Volume (Million Cubic Feet) Pacific Region Natural Gas Underground Storage Volume (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 544,417 522,182 529,030 543,901 581,848 610,748 619,005 624,692 636,405 645,077 626,113 529,510 2014 456,688 373,776 363,397 402,887 459,189 507,932 533,461 561,487 576,755 604,676 598,236 581,556 2015 535,012 532,186 534,713 552,592 584,491 595,030 603,251 606,862 617,976 638,832 628,206 579,071 2016 535,527 521,897

  18. Lower 48 States Working Natural Gas Total Underground Storage Capacity

    Gasoline and Diesel Fuel Update

    (Million Cubic Feet) Total Natural Gas Injections into Underground Storage (Million Cubic Feet) Lower 48 States Total Natural Gas Injections into Underground Storage (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 50,130 81,827 167,632 312,290 457,725 420,644 359,267 370,180 453,548 436,748 221,389 90,432 2012 74,854 56,243 240,351 263,896 357,965 323,026 263,910 299,798 357,109 327,767 155,554 104,953 2013 70,853 41,928 100,660 271,236 466,627 439,390 372,472

  19. Evaluation of a subsurface oxygenation technique using colloidal gas aphron injections into packed column reactors

    SciTech Connect

    Wills, R.A.; Coles, P.

    1991-11-01

    Bioremediation may be a remedial technology capable of decontaminating subsurface environments. The objective of this research was to evaluate the use of colloidal gas aphron (CGA) injection, which is the injection of micrometer-size air bubbles in an aqueous surfactant solution, as a subsurface oxygenation technique to create optimal growth conditions for aerobic bacteria. Along with this, the capability of CGAs to act as a soil-washing agent and free organic components from a coal tar-contaminated matrix was examined. Injection of CGAs may be useful for remediation of underground coal gasification (UCG) sites. Because of this, bacteria and solid material from a UCG site located in northeastern Wyoming were used in this research. Colloidal gas aphrons were generated and pumped through packed column reactors (PCRS) containing post-burn core materials. For comparison, PCRs containing sand were also studied. Bacteria from this site were tested for their capability to degrade phenol, a major contaminant at the UCG site, and were also used to bioaugment the PCR systems. In this study we examined: (1) the effect of CGA injection on dissolved oxygen concentrations in the PCR effluents, (2) the effect of CGA, H[sub 2]O[sub 2], and phenol injections on bacterial populations, (3) the stability and transport of CGAs over distance, and (4) CGA injection versus H[sub 2]O[sub 2] injection as an oxygenation technique.

  20. Evaluation of a subsurface oxygenation technique using colloidal gas aphron injections into packed column reactors

    SciTech Connect

    Wills, R.A.; Coles, P.

    1991-11-01

    Bioremediation may be a remedial technology capable of decontaminating subsurface environments. The objective of this research was to evaluate the use of colloidal gas aphron (CGA) injection, which is the injection of micrometer-size air bubbles in an aqueous surfactant solution, as a subsurface oxygenation technique to create optimal growth conditions for aerobic bacteria. Along with this, the capability of CGAs to act as a soil-washing agent and free organic components from a coal tar-contaminated matrix was examined. Injection of CGAs may be useful for remediation of underground coal gasification (UCG) sites. Because of this, bacteria and solid material from a UCG site located in northeastern Wyoming were used in this research. Colloidal gas aphrons were generated and pumped through packed column reactors (PCRS) containing post-burn core materials. For comparison, PCRs containing sand were also studied. Bacteria from this site were tested for their capability to degrade phenol, a major contaminant at the UCG site, and were also used to bioaugment the PCR systems. In this study we examined: (1) the effect of CGA injection on dissolved oxygen concentrations in the PCR effluents, (2) the effect of CGA, H{sub 2}O{sub 2}, and phenol injections on bacterial populations, (3) the stability and transport of CGAs over distance, and (4) CGA injection versus H{sub 2}O{sub 2} injection as an oxygenation technique.

  1. Superconductor fiber elongation with a heated injected gas

    DOEpatents

    Zeigler, D.D.; Conrad, B.L.; Gleixner, R.A.

    1998-06-02

    An improved method and apparatus for producing flexible fibers of superconducting material includes a crucible for containing a charge of the superconducting material. The material is melted in the crucible and falls in a stream through a bottom hole in the crucible. The stream falls through a protecting collar which maintains the stream at high temperatures. The stream is then supplied through a downwardly directed nozzle where it is subjected to a high velocity of a heated gas which breaks the melted superconducting material into ligaments which solidify into the flexible fibers. The fibers are collected by directing them against a collection filter. 10 figs.

  2. Mountain Region Natural Gas Working Underground Storage Capacity (Million

    Gasoline and Diesel Fuel Update

    Working Gas from Same Month Previous Year (Percent) Mountain Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Mountain Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2015 -4.70 13.00 35.00 41.50 36.90 27.10 22.30 18.60 16.40 14.60 18.60 22.30 2016 19.40 24.20 27.80 31.30 31.00 27.50 21.90 18.00 - = No Data

  3. Pacific Region Natural Gas Working Underground Storage Capacity (Million

    Gasoline and Diesel Fuel Update

    Working Gas from Same Month Previous Year (Percent) Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Pacific Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2015 39.40 137.00 162.70 103.50 62.40 34.80 25.30 14.90 12.90 9.80 8.70 -0.90 2016 0.10 -3.90 -3.60 -2.20 -6.10 -6.00 -8.10 -9.60 - = No Data Reported;

  4. Second AEO2014 Oil and Gas Working Group Meeting Summary

    Energy Information Administration (EIA) (indexed site)

    7 November 12, 2013 MEMORANDUM FOR: JOHN CONTI ASSISTANT ADMINISTRATOR FOR ENERGY ANALYSIS FROM: ANGELINA LAROSE TEAM LEAD NATURAL GAS MARKETS TEAM JOHN STAUB TEAM LEAD EXPLORATION AND PRODUCTION ANALYSIS TEAM EXPLORATION AND PRODUCTION and NATURAL GAS MARKETS TEAMS SUBJECT: Second AEO2014 Oil and Gas Working Group Meeting Summary (presented September 26, 2013) Attendees: Robert Anderson (DOE) Peter Balash (NETL)* David Bardin (self) Joe Benneche (EIA) Philip Budzik (EIA) Kara Callahan

  5. Second AEO2016 Oil and Gas Working Group Meeting Summary

    Energy Information Administration (EIA) (indexed site)

    April 8, 2016 MEMORANDUM FOR: JOHN CONTI ASSISTANT ADMINISTRATOR FOR ENERGY ANALYSIS FROM: MINDI FARBER-DEANDA ACTING TEAM LEAD NATURAL GAS MARKETS TEAM JOHN STAUB TEAM LEAD EXPLORATION AND PRODUCTION ANALYSIS TEAM EXPLORATION AND PRODUCTION and NATURAL GAS MARKETS TEAMS SUBJECT: Second AEO2016 Oil and Gas Working Group Meeting Summary (presented on February 29, 2016) Attendees: Joseph Benneche (EIA) Katie Dyl (EIA) Terry Yen (EIA) Danya Murali (EIA) Laura Singer (EIA) Faouzi Aloulou (EIA) Dana

  6. AEO2014 Oil and Gas Working Group Meeting Summary

    Energy Information Administration (EIA) (indexed site)

    9 August 12, 2013 MEMORANDUM FOR: JOHN CONTI ASSISTANT ADMINISTRATOR FOR ENERGY ANALYSIS FROM: ANGELINA LAROSE TEAM LEAD NATURAL GAS MARKETS TEAM JOHN STAUB TEAM LEAD EXPLORATION AND PRODUCTION ANALYSIS TEAM EXPLORATION AND PRODUCTION and NATURAL GAS MARKETS TEAMS SUBJECT: First AEO2014 Oil and Gas Working Group Meeting Summary (presented on July 25, 2013) Attendees: Anas Alhajji (NGP)* Samuel Andrus (IHS)* Emil Attanasi (USGS)* Andre Barbe (Rice University) David J. Barden (self) Joseph

  7. Superconductor fiber elongation with a heated injected gas

    DOEpatents

    Zeigler, Douglas D.; Conrad, Barry L.; Gleixner, Richard A.

    2001-01-16

    An improved method and apparatus for producing flexible fibers (30) of superconducting material includes a crucible (12) for containing a charge of the superconducting material. The material is melted in the crucible (12) and falls in a stream (18) through a bottom hole (16) in the crucible (12). The stream (18) falls through a protecting collar (22) which maintains the stream (18) at high temperatures. The stream (18) is then supplied through a downwardly directed nozzle (26) where it is subjected to a high velocity of a heated gas (36') which breaks the melted superconducting material into ligaments which solidify into the flexible fibers (30). The fibers (30) are collected by directing them against a collection filter (32).

  8. Superconductor fiber elongation with a heated injected gas

    DOEpatents

    Zeigler, Douglas D.; Conrad, Barry L.; Gleixner, Richard A.

    1998-06-02

    An improved method and apparatus for producing flexible fibers (30) of superconducting material includes a crucible (12) for containing a charge of the superconducting material. The material is melted in the crucible (12) and falls in a stream (18) through a bottom hole (16) in the crucible (12). The stream (18) falls through a protecting collar (22) which maintains the stream (18) at high temperatures. The stream (18) is then supplied through a downwardly directed nozzle (26) where it is subjected to a high velocity of a heated gas (36') which breaks the melted superconducting material into ligaments which solidify into the flexible fibers (30). The fibers (30) are collected by directing them against a collection filter (32).

  9. Lower 48 States Natural Gas Working Underground Storage (Billion...

    Energy Information Administration (EIA) (indexed site)

    Underground Storage (Billion Cubic Feet) Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value...

  10. Philadelphia Gas Works- Commercial and Industrial Efficient Building Grant Program

    Energy.gov [DOE]

    Philadelphia Gas Works' (PGW) Commercial and Industrial Efficient Building Grant Program is part of PGW's EnergySense program. This program offers incentives up to $75,000 for multifamily,...

  11. Differences Between Monthly and Weekly Working Gas In Storage

    Weekly Natural Gas Storage Report

    Differences Between Monthly and Weekly Working Gas In Storage Latest update: November 3, 2016 Note: The weekly storage estimates are based on a survey sample that does not include all companies that operate underground storage facilities. The sample was selected from the list of storage operators to achieve a target standard error of the estimate of working gas in storage which was no greater than 5 percent for each region. Based on a comparison of weekly estimates and monthly data from January

  12. First AEO2017 Oil and Gas Working Group Meeting

    Energy Information Administration (EIA) (indexed site)

    DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE. September 12, 2016 MEMORANDUM FOR: Ian Mead Assistant Administrator for Energy Analysis FROM: John Staub Team Lead, Exploration and Production Analysis Mindi Farber-DeAnda Acting Team Lead, Natural Gas Markets Subject: First AEO2017 Oil and Gas Working Group Meeting held on August 25, 2016 The meeting began with an overview of the areas under focus for the AEO2017 in the Oil and Gas Supply Module (OGSM) and the Natural Gas Transmission and

  13. Preventive maintenance system with a different gas injecting facility for GIS

    SciTech Connect

    Utsumi, T.; Endo, F.; Ishikawa, T.; Iwaasa, S. . Hitachi Research Lab.); Yamagiwa, T. . Kokubu Works)

    1993-07-01

    A preventive maintenance system for gas-insulated switch gear (GIS) has been developed, which detects signs of trouble and prevents breakdowns in service. The system constantly monitors UHF signals, which are generated by partial discharges (PDs) and propagate in the GIS, by using couplers built into the apparatus. The PDs are detected at high sensitivity (5pC) and located according to the attenuation of the signals. Then the system injects a different gas into the section where PDs are occurring and improves the dielectric strength. This prevents faults in service and allows remedial actions to be taken with less urgency. By injecting a small quantity (5-10%) of c-C[sub 4]F[sub 8] into the GIS, dielectric strength is raised more than 20%. A preventive maintenance system with a facility to inject a different gas was constructed for a full-scale GIS model. The system detected and located PDs, and automatically injected the different gas to improve the dielectric strength.

  14. Enahancing the Use of Coals by Gas Reburning - Sorbent Injection Volume 5 - Guideline Manual

    SciTech Connect

    1998-09-01

    The purpose of the Guideline Manual is to provide recommendations for the application of combined gas reburning-sorbent injection (GR-SI) technologies to pre-NSPS boilers. The manual includes design recommendations, performance predictions, economic projections and comparisons with competing technologies. The report also includes an assessment of boiler impacts. Two full-scale demonstrations of gas reburning-sorbent injection form the basis of the Guideline Manual. Under the U.S. Department of Energy's Clean Coal Technology Program (Round 1), a project was completed to demonstrate control of boiler emissions that comprise acid rain precursors, specifically oxides of nitrogen (NOX) and sulfur dioxide (S02). Other project sponsors were the Gas Research Institute and the Illinois State Department of Commerce and Community Affairs. The project involved demonstrating the combined use of Gas Reburning and Sorbent Injection (GR-SI) to assess the air emissions reduction potential of these technologies.. Three potential coal-fired utility boiler host sites were evaluated: Illinois Power's tangentially-fired 71 MWe (net) Hennepin Unit W, City Water Light and Power's cyclone- fired 33 MWe (gross) Lakeside Unit #7, and Central Illinois Light Company's wall-fired 117 MWe (net) Edwards Unit #1. Commercial demonstrations were completed on the Hennepin and Lakeside Units. The Edwards Unit was removed from consideration for a site demonstration due to retrofit cost considerations. Gas Reburning (GR) controls air emissions of NOX. Natural gas is introduced into the furnace hot flue gas creating a reducing reburning zone to convert NOX to diatomic nitrogen (N,). Overfire air is injected into the furnace above the reburning zone to complete the combustion of the reducing (fuel) gases created in the reburning zone. Sorbent Injection (S1) consists of the injection of dry, calcium-based sorbents into furnace hot flue gas to achieve S02 capture. At each site where the techno!o@es were to

  15. Enhancing the Use of Coals by Gas Reburning - Sorbent Injection Volume 5 - Guideline Manual

    SciTech Connect

    1998-06-01

    The purpose of the Guideline Manual is to provide recommendations for the application of combined gas reburning-sorbent injection (GR-SI) technologies to pre-NSPS boilers. The manual includes design recommendations, performance predictions, economic projections and comparisons with competing technologies. The report also includes an assessment of boiler impacts. Two full-scale demonstrations of gas reburning-sorbent injection form the basis of the Guideline Manual. Under the U.S. Department of Energy's Clean Coal Technology Program (Round 1), a project was completed to demonstrate control of boiler emissions that comprise acid rain precursors, specifically oxides of nitrogen (NOX) and sulfur dioxide (S02). Other project sponsors were the Gas Research Institute and the Illinois State Department of Commerce and Community Affairs. The project involved d,emonstrating the combined use of Gas Reburning and Sorbent Injection (GR-SI) to assess the air emissions reduction potential of these technologies.. Three potential coal-fired utility boiler host sites were evaluated: Illinois Power's tangentially-fired 71 MWe (net) Hennepin Unit #1, City Water Light and Power's cyclone- fired 33 MWe (gross) Lakeside Unit #7, and Central Illinois Light Company's wall-fired 117 MWe (net) Edwards Unit #1. Commercial demonstrations were completed on the Hennepin and Lakeside Units. The Edwards Unit was removed from consideration for a site demonstration due to retrofit cost considerations. Gas Reburning (GR) controls air emissions of NOX. Natural gas is introduced into the furnace hot flue gas creating a reducing reburning zone to convert NOX to diatomic nitrogen (N,). Overfire air is injected into the furnace above the reburning zone to complete the combustion of the reducing (fuel) gases created in the reburning zone. Sorbent Injection (S1) consists of the injection of dry, calcium-based sorbents into furnace hot flue gas to achieve S02 capture. `At each site where the technologies were

  16. Impurity mixing and radiation asymmetry in massive gas injection simulations of DIII-D

    SciTech Connect

    Izzo, V. A.

    2013-05-15

    Simulations of neon massive gas injection into DIII-D are performed with the 3D MHD code NIMROD. The poloidal and toroidal distribution of the impurity source is varied. This report will focus on the effects of the source variation on impurity mixing and radiated power asymmetry. Even toroidally symmetric impurity injection is found to produce asymmetric radiated power due to asymmetric convective heat flux produced by the 1/1 mode. When the gas source is toroidally localized, the phase relationship between the mode and the source location is important, affecting both radiation peaking and impurity mixing. Under certain circumstances, a single, localized gas jet could produce better radiation symmetry during the disruption thermal quench than evenly distributed impurities.

  17. AGA Eastern Consuming Region Natural Gas in Underground Storage (Working

    Energy Information Administration (EIA) (indexed site)

    Gas) (Million Cubic Feet) Working Gas) (Million Cubic Feet) AGA Eastern Consuming Region Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 905,018 584,386 467,210 599,207 831,273 1,086,355 1,342,894 1,578,648 1,775,994 1,885,465 1,819,517 1,589,500 1995 1,206,116 814,626 663,885 674,424 850,290 1,085,760 1,300,439 1,487,188 1,690,456 1,811,013 1,608,177 1,232,901 1996 812,303 520,053 341,177 397,770 612,572 890,243

  18. AGA Western Consuming Region Natural Gas in Underground Storage (Working

    Energy Information Administration (EIA) (indexed site)

    Gas) (Million Cubic Feet) Working Gas) (Million Cubic Feet) AGA Western Consuming Region Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 280,414 208,968 200,997 216,283 261,894 293,909 326,049 349,274 387,670 405,477 381,931 342,394 1995 288,908 270,955 251,410 246,654 284,291 328,371 362,156 372,718 398,444 418,605 419,849 366,944 1996 280,620 236,878 221,371 232,189 268,812 299,619 312,736 313,747 330,116

  19. ,"Alaska Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Alaska Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  20. ,"Connecticut Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Connecticut Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1996 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  1. ,"Delaware Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Delaware Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  2. ,"Georgia Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Georgia Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  3. ,"Idaho Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Idaho Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  4. ,"Massachusetts Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Massachusetts Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  5. ,"Wisconsin Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Wisconsin Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1973 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  6. Gas-turbine cogeneration system with steam injection. Annual report, October 1987-September 1988

    SciTech Connect

    Cain, W.G.

    1988-11-04

    A gas-turbine topping-cycle cogeneration system was developed to specifically meet the needs of industrial cogenerators in the 2-10 MW(sub e) range. The steam-injected cogeneration system was installed in the GM/Hydramatic plant in Warren, Michigan. Operation of the cogeneration system commenced in June of 1988. The cogeneration system was installed with sufficient instrumentation to allow monitoring of the performance for at least a one-year period. Two areas of interest are the effects of steam injection on the NOx and carbon monoxide emission levels and the performance of the passive feedwater cleanup system.

  7. ,"New Jersey Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Jersey Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1996 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  8. ,"North Carolina Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","North Carolina Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1996 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  9. ,"South Carolina Natural Gas Underground Storage Injections All Operators (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Injections All Operators (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","South Carolina Natural Gas Underground Storage Injections All Operators (MMcf)",1,"Annual",1975 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  10. Radiation asymmetries during disruptions on DIII-D caused by massive gas injection

    SciTech Connect

    Commaux, N.; Baylor, L. R.; Jernigan, T. C.; Foust, C. R.; Combs, S.; Meitner, S. J.; Hollmann, E. M.; Izzo, V. A.; Moyer, R. A.; Humphreys, D. A.; Wesley, J. C.; Eidietis, N. W.; Parks, P. B.; Lasnier, C. J.

    2014-10-15

    One of the major challenges that the ITER tokamak will have to face during its operations are disruptions. During the last few years, it has been proven that the global consequences of a disruption can be mitigated by the injection of large quantities of impurities. But one aspect that has been difficult to study was the possibility of local effects inside the torus during such injection that could damage a portion of the device despite the global heat losses and generated currents remaining below design parameter. 3D MHD simulations show that there is a potential for large toroidal asymmetries of the radiated power during impurity injection due to the interaction between the particle injection plume and a large n?=?1 mode. Another aspect of 3D effects is the potential occurrence of Vertical Displacement Events (VDE), which could induce large poloidal heat load asymmetries. This potential deleterious effect of 3D phenomena has been studied on the DIII-D tokamak, thanks to the implementation of a multi-location massive gas injection (MGI) system as well as new diagnostic capabilities. This study showed the existence of a correlation between the location of the n?=?1 mode and the local heat load on the plasma facing components but shows also that this effect is much smaller than anticipated (peaking factor of ?1.1 vs 3-4 according to the simulations). There seems to be no observable heat load on the first wall of DIII-D at the location of the impurity injection port as well as no significant radiation asymmetries whether one or 2 valves are fired. This study enabled the first attempt of mitigation of a VDE using impurity injection at different poloidal locations. The results showed a more favorable heat deposition when the VDE is mitigated early (right at the onset) by impurity injection. No significant improvement of the heat load mitigation efficiency has been observed for late particle injection whether the injection is done in the way of the VDE (upward VDE

  11. Influence of gas injection location and magnetic perturbations on ICRF antenna performance in ASDEX Upgrade

    SciTech Connect

    Bobkov, V.; Bilato, R.; Dux, R.; Faugel, H.; Kallenbach, A.; Müller, H. W.; Potzel, S.; Pütterich, Th.; Suttrop, W.; Stepanov, I.; Noterdaeme, J.-M.; Jacquet, P.; Monakhov, I.; Czarnecka, A.; Collaboration: ASDEX Upgrade Team

    2014-02-12

    In ASDEX Upgrade H-modes with H{sub 98}≈0.95, similar effect of the ICRF antenna loading improvement by local gas injection was observed as previously in L-modes. The antenna loading resistance R{sub a} between and during ELMs can increase by more than 25% after a switch-over from a deuterium rate of 7.5⋅10{sup 21} D/s injected from a toroidally remote location to the same amount of deuterium injected close to an antenna. However, in contrast to L-mode, this effect is small in H-mode when the valve downstream w.r.t. parallel plasma flows is used. In L-mode, a non-linearity of R{sub a} at P{sub ICRP}<30 kW is observed when using the gas valve integrated in antenna. Application of magnetic perturbations (MPs) in H-mode discharges leads to an increase of R{sub a}>30% with no effect of spectrum and phase of MPs on R{sub a} found so far. In the case ELMs are fully mitigated, the antenna loading is higher and steadier. In the case ELMs are not fully mitigated, the value of R{sub a} between ELMs is increased. Looking at the W source modification for the improved loading, the local gas injection is accompanied by decreased values of tungsten (W) influx Γ{sub W} from the limiters and its effective sputtering yield Y{sub w}, with the exception of the locations directly at the antenna gas valve. Application of MPs leads to increase of Γ{sub W} and Y{sub w} for some of the MP phases. With nitrogen seeding in the divertor, ICRF is routinely used to avoid impurity accumulation and that despite enhanced Γ{sub W} and Y{sub W} at the antenna limiters.

  12. Preliminary Failure Modes and Effects Analysis of the US Massive Gas Injection Disruption Mitigation System Design

    SciTech Connect

    Lee C. Cadwallader

    2013-10-01

    This report presents the results of a preliminary failure modes and effects analysis (FMEA) of a candidate design for the ITER Disruption Mitigation System. This candidate is the Massive Gas Injection System that provides machine protection in a plasma disruption event. The FMEA was quantified with “generic” component failure rate data as well as some data calculated from operating facilities, and the failure events were ranked for their criticality to system operation.

  13. HIGH RESOLUTION PREDICTION OF GAS INJECTION PROCESS PERFORMANCE FOR HETEROGENEOUS RESERVOIRS

    SciTech Connect

    Franklin M. Orr, Jr.

    2001-06-30

    This report outlines progress in the third 3 quarter of the first year of the DOE project ''High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs.'' A simple theoretical formulation of vertical flow with capillary/gravity equilibrium is described. Also reported are results of experimental measurements for the same systems. The results reported indicate that displacement behavior is strongly affected by the interfacial tension of phases that form on the tie line that extends through the initial oil composition.

  14. Fuel injection staged sectoral combustor for burning low-BTU fuel gas

    DOEpatents

    Vogt, Robert L.

    1985-02-12

    A high-temperature combustor for burning low-BTU coal gas in a gas turbine is described. The combustor comprises a plurality of individual combustor chambers. Each combustor chamber has a main burning zone and a pilot burning zone. A pipe for the low-BTU coal gas is connected to the upstream end of the pilot burning zone: this pipe surrounds a liquid fuel source and is in turn surrounded by an air supply pipe: swirling means are provided between the liquid fuel source and the coal gas pipe and between the gas pipe and the air pipe. Additional preheated air is provided by counter-current coolant air in passages formed by a double wall arrangement of the walls of the main burning zone communicating with passages of a double wall arrangement of the pilot burning zone: this preheated air is turned at the upstream end of the pilot burning zone through swirlers to mix with the original gas and air input (and the liquid fuel input when used) to provide more efficient combustion. One or more fuel injection stages (second stages) are provided for direct input of coal gas into the main burning zone. The countercurrent air coolant passages are connected to swirlers surrounding the input from each second stage to provide additional oxidant.

  15. Fuel injection staged sectoral combustor for burning low-BTU fuel gas

    DOEpatents

    Vogt, Robert L.

    1981-01-01

    A high-temperature combustor for burning low-BTU coal gas in a gas turbine is described. The combustor comprises a plurality of individual combustor chambers. Each combustor chamber has a main burning zone and a pilot burning zone. A pipe for the low-BTU coal gas is connected to the upstream end of the pilot burning zone; this pipe surrounds a liquid fuel source and is in turn surrounded by an air supply pipe; swirling means are provided between the liquid fuel source and the coal gas pipe and between the gas pipe and the air pipe. Additional preheated air is provided by counter-current coolant air in passages formed by a double wall arrangement of the walls of the main burning zone communicating with passages of a double wall arrangement of the pilot burning zone; this preheated air is turned at the upstream end of the pilot burning zone through swirlers to mix with the original gas and air input (and the liquid fuel input when used) to provide more efficient combustion. One or more fuel injection stages (second stages) are provided for direct input of coal gas into the main burning zone. The countercurrent air coolant passages are connected to swirlers surrounding the input from each second stage to provide additional oxidant.

  16. Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 2

    SciTech Connect

    Cox, G.B.; DelVecchio, K.A.; Hays, W.J.; Hiltner, J.D.; Nagaraj, R.; Emmer, C.

    2000-03-02

    This report summarizes the results of Phase 2 of this contract. The authors completed four tasks under this phase of the subcontract. (1) They developed a computational fluid dynamics (CFD) model of a 3500 direct injected natural gas (DING) engine gas injection/combustion system and used it to identify DING ignition/combustion system improvements. The results were a 20% improvement in efficiency compared to Phase 1 testing. (2) The authors designed and procured the components for a 3126 DING engine (300 hp) and finished assembling it. During preliminary testing, the engine ran successfully at low loads for approximately 2 hours before injector tip and check failures terminated the test. The problems are solvable; however, this phase of the program was terminated. (3) They developed a Decision & Risk Analysis model to compare DING engine technology with various other engine technologies in a number of commercial applications. The model shows the most likely commercial applications for DING technology and can also be used to identify the sensitivity of variables that impact commercial viability. (4) MVE, Inc., completed a preliminary design concept study that examines the major design issues involved in making a reliable and durable 3,000 psi LNG pump. A primary concern is the life of pump seals and piston rings. Plans for the next phase of this program (Phase 3) have been put on indefinite hold. Caterpillar has decided not to fund further DING work at this time due to limited current market potential for the DING engine. However, based on results from this program, the authors believe that DI natural gas technology is viable for allowing a natural gas-fueled engine to achieve diesel power density and thermal efficiency for both the near and long terms.

  17. Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)

    Energy Information Administration (EIA) (indexed site)

    Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet) Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 268 01/08 257 01/15 246 01/22 235 01/29 221 2010-Feb 02/05 211 02/12 197 02/19 193 02/26 184 2010-Mar 03/05 182 03/12 176 03/19 179 03/26 185 2010-Apr 04/02 189 04/09 193 04/16 199 04/23 209 04/30 220 2010-May

  18. Salt South Central Region Natural Gas Working Underground Storage (Billion

    Energy Information Administration (EIA) (indexed site)

    Cubic Feet) Salt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) Salt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 159 01/08 123 01/15 91 01/22 102 01/29 108 2010-Feb 02/05 95 02/12 85 02/19 71 02/26 70 2010-Mar 03/05 63 03/12 71 03/19 80 03/26 89 2010-Apr 04/02 101 04/09 112 04/16 120

  19. South Central Region Natural Gas Working Underground Storage (Billion Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 985 01/08 886 01/15 793 01/22 789 01/29 779 2010-Feb 02/05 719 02/12 658 02/19 592 02/26 566 2010-Mar 03/05 535 03/12 548 03/19 567 03/26 581 2010-Apr 04/02 612 04/09 649 04/16 679 04/23 710

  20. Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)

    Energy Information Administration (EIA) (indexed site)

    Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet) Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 900 01/08 820 01/15 750 01/22 710 01/29 661 2010-Feb 02/05 604 02/12 552 02/19 502 02/26 464 2010-Mar 03/05 433 03/12 422 03/19 419 03/26 410 2010-Apr 04/02 410 04/09 429 04/16 444 04/23 462 04/30 480 2010-May

  1. Mountain Region Natural Gas Working Underground Storage (Billion Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet) Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 195 01/08 185 01/15 176 01/22 171 01/29 164 2010-Feb 02/05 157 02/12 148 02/19 141 02/26 133 2010-Mar 03/05 129 03/12 127 03/19 126 03/26 126 2010-Apr 04/02 126 04/09 126 04/16 129 04/23 134 04/30 138

  2. Nonsalt South Central Region Natural Gas Working Underground Storage

    Energy Information Administration (EIA) (indexed site)

    (Billion Cubic Feet) Nonsalt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) Nonsalt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 2010-Jan 01/01 826 01/08 763 01/15 702 01/22 687 01/29 671 2010-Feb 02/05 624 02/12 573 02/19 521 02/26 496 2010-Mar 03/05 472 03/12 477 03/19 487 03/26 492 2010-Apr 04/02

  3. Producing Region Natural Gas Working Underground Storage (Billion Cubic

    Gasoline and Diesel Fuel Update

    Feet) Producing Region Natural Gas Working Underground Storage (Billion Cubic Feet) Producing Region Natural Gas Working Underground Storage (Billion Cubic Feet) Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 1993-Dec 12/31 570 1994-Jan 01/07 532 01/14 504 01/21 440 01/28 414 1994-Feb 02/04 365 02/11 330 02/18 310 02/25 309 1994-Mar 03/04 281 03/11 271 03/18 284 03/25 303 1994-Apr 04/01 287 04/08 293 04/15 308 04/22

  4. Illinois Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    Feet) Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Illinois Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2012 299,439 299,439 299,439 300,439 299,439 299,439 302,439 302,439 302,439 302,439 302,439 302,962 2013 302,962 302,962 302,962 302,962 302,962 302,962 303,312 303,312 303,312 303,312 303,312 303,312 2014 303,312 303,312 303,312 303,312 303,312 303,312 303,312 303,312 303,312 304,312

  5. Iowa Working Natural Gas Underground Storage Capacity (Million Cubic Feet)

    Gasoline and Diesel Fuel Update

    Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Iowa Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2012 91,114 91,113 91,113 90,846 90,580 90,313 90,313 90,313 90,313 90,313 90,313 90,313 2013 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 2014 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 90,313 2015 90,313 90,313 90,313 90,313

  6. Collection efficiency of photoelectrons injected into near- and supercritical argon gas

    SciTech Connect

    Borghesani, A. F.; Lamp, P.

    2013-01-21

    Injection of photoelectrons into gaseous or liquid dielectrics is a widely used technique to produce cold plasmas in weakly ionized systems for investigating the transport properties of electrons. We report measurements of the collection efficiency of photoelectrons injected into dense argon gas for T= 152.7 K, close to the critical temperature T{sub c} Almost-Equal-To 150.9 K, and for T= 200.0 K. The high-field data agree with the Young-Bradbury model and with previous measurements below T{sub c} and at an intermediate temperature above T{sub c}. The effective, density-dependent electron-atom momentum transfer scattering cross section can be deduced. However, the weak-field data near T{sub c} show large deviations from the theoretical model. We show that the electron behavior at weak field is influenced by electrostriction effects that are only important near the critical point.

  7. Lower 48 Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Lower 48 Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 0.1 2.3 -4.6 -11.1 -9.6 -7.7 -6.4 -4.2 -2.6 -1.2 2.0 11.3 2012 36.5 53.4 73.5 61.5 46.1 34.6 25.3 19.5 15.0 11.5 7.7 8.2 2013 -7.6 -14.8 -31.0 -29.5 -21.9 -15.7 -10.0 -6.2 -4.0 -3.4 -5.7 -15.9

  8. Sorbent Injection for Small ESP Mercury Control in Low Sulfur Eastern Bituminous Coal Flue Gas

    SciTech Connect

    Carl Richardson; Katherine Dombrowski; Douglas Orr

    2006-12-31

    This project Final Report is submitted to the U.S. Department of Energy (DOE) as part of Cooperative Agreement DE-FC26-03NT41987, 'Sorbent Injection for Small ESP Mercury Control in Low Sulfur Eastern Bituminous Coal Flue Gas.' Sorbent injection technology is targeted as the primary mercury control process on plants burning low/medium sulfur bituminous coals equipped with ESP and ESP/FGD systems. About 70% of the ESPs used in the utility industry have SCAs less than 300 ft2/1000 acfm. Prior to this test program, previous sorbent injection tests had focused on large-SCA ESPs. This DOE-NETL program was designed to generate data to evaluate the performance and economic feasibility of sorbent injection for mercury control at power plants that fire bituminous coal and are configured with small-sized electrostatic precipitators and/or an ESP-flue gas desulfurization (FGD) configuration. EPRI and Southern Company were co-funders for the test program. Southern Company and Reliant Energy provided host sites for testing and technical input to the project. URS Group was the prime contractor to NETL. ADA-ES and Apogee Scientific Inc. were sub-contractors to URS and was responsible for all aspects of the sorbent injection systems design, installation and operation at the different host sites. Full-scale sorbent injection for mercury control was evaluated at three sites: Georgia Power's Plant Yates Units 1 and 2 [Georgia Power is a subsidiary of the Southern Company] and Reliant Energy's Shawville Unit 3. Georgia Power's Plant Yates Unit 1 has an existing small-SCA cold-side ESP followed by a Chiyoda CT-121 wet scrubber. Yates Unit 2 is also equipped with a small-SCA ESP and a dual flue gas conditioning system. Unit 2 has no SO2 control system. Shawville Unit 3 is equipped with two small-SCA cold-side ESPs operated in series. All ESP systems tested in this program had SCAs less than 250 ft2/1000 acfm. Short-term parametric tests were conducted on Yates Units 1 and 2 to evaluate

  9. Assumptions and Expectations for Annual Energy Outlook 2015: Oil and Gas Working Group

    Energy Information Administration (EIA) (indexed site)

    and Expectations for Annual Energy Outlook 2016: Oil and Gas Working Group AEO2016 Oil and Gas Supply Working Group Meeting Office of Petroleum, Gas, and Biofuels Analysis February 29, 2016| Washington, DC http://www.eia.gov/forecasts/aeo/workinggroup/ WORKING GROUP PRESENTATION FOR DISCUSSION PURPOSES DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE Overview * Natural gas markets - Natural gas supply and delivered prices - Natural gas consumption - Pipeline imports/exports - LNG exports *

  10. First results on disruption mitigation by massive gas injection in Korea Superconducting Tokamak Advanced Research

    SciTech Connect

    Yu Yaowei; Kim, Young-Ok; Kim, Hak-Kun; Kim, Hong-Tack; Kim, Woong-Chae; Kim, Kwang-Pyo; Son, Soo-Hyun; Bang, Eun-Nam; Hong, Suk-Ho; Yoon, Si-Woo; Zhuang Huidong; Chen Zhongyong

    2012-12-15

    Massive gas injection (MGI) system was developed on Korea Superconducting Tokamak Advanced Research (KSTAR) in 2011 campaign for disruption studies. The MGI valve has a volume of 80 ml and maximum injection pressure of 50 bar, the diameter of valve orifice to vacuum vessel is 18.4 mm, the distance between MGI valve and plasma edge is {approx}3.4 m. The MGI power supply employs a large capacitor of 1 mF with the maximum voltage of 3 kV, the valve can be opened in less than 0.1 ms, and the amount of MGI can be controlled by the imposed voltage. During KSTAR 2011 campaign, MGI disruptions are carried out by triggering MGI during the flat top of circular and limiter discharges with plasma current 400 kA and magnetic field 2-3.5 T, deuterium injection pressure 39.7 bar, and imposed voltage 1.1-1.4 kV. The results show that MGI could mitigate the heat load and prevent runaway electrons with proper MGI amount, and MGI penetration is deeper under higher amount of MGI or lower magnetic field. However, plasma start-up is difficult after some of D{sub 2} MGI disruptions due to the high deuterium retention and consequently strong outgassing of deuterium in next shot, special effort should be made to get successful plasma start-up after deuterium MGI under the graphite first wall.

  11. Enhancing the use of coals by gas reburning-sorbent injection

    SciTech Connect

    Not Available

    1988-12-22

    The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on three coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices; tangential, wall, and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, about 80--85 percent of the coal fuel is fired in the primary combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by overfire air addition. SO{sub x} emissions are reduced by injecting dry sorbents (usually calcium based) into the upper furnace, at the superheater exit or into the ducting following the air heater. The sorbents trap SO{sub x} as solid sulfates and sulfites, which are collected in the particulate control device.

  12. Texas Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet)

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Texas Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 321,678 314,918 308,955 347,344 357,995 370,534 383,549 377,753 378,495 396,071 402,265 365,396 1991 279,362 271,469 271,401 289,226 303,895 323,545 327,350 329,102 344,201 347,984 331,821 316,648 1992 284,571 270,262 264,884 267,778 286,318 298,901 320,885 338,320 341,156 345,459 324,873 288,098 1993 165,226 149,367 141,472

  13. Ohio Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet)

    Energy Information Administration (EIA) (indexed site)

    Working Gas) (Million Cubic Feet) Ohio Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 100,467 79,364 70,578 73,582 96,173 115,927 135,350 154,385 171,798 182,858 181,763 157,536 1991 120,038 97,180 81,448 90,583 109,886 132,661 147,602 165,801 180,656 188,600 175,740 148,929 1992 105,511 70,674 36,141 38,587 63,604 95,665 121,378 143,128 158,570 169,712 164,562 132,576 1993 93,544 49,298 14,332 16,953 43,536 75,177

  14. Lower 48 States Total Natural Gas in Underground Storage (Working Gas)

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Working Gas) (Million Cubic Feet) Lower 48 States Total Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 2,305,843 1,721,875 1,577,007 1,788,480 2,186,855 2,529,647 2,775,346 3,019,155 3,415,698 3,803,828 3,842,882 3,462,021 2012 2,910,007 2,448,810 2,473,130 2,611,226 2,887,060 3,115,447 3,245,201 3,406,134 3,693,053 3,929,250 3,799,215 3,412,910 2013 2,690,271 2,085,441 1,706,102 1,840,859

  15. Midwest Region Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Million Cubic Feet) - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Midwest Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 -63,664 -102,296 -211,632 -235,463 -214,379 -166,660 -123,165 -100,408 -77,814 -65,919 -81,637 -181,602 2014 -243,074 -255,871 -209,941 -189,692 -156,914 -124,375 -83,035 -47,387 -33,755

  16. Mountain Region Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Million Cubic Feet) - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Mountain Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 12,014 6,758 -9,151 -16,380 -18,695 -22,708 -24,019 -20,476 -26,134 -26,039 -24,866 -34,136 2014 -32,861 -42,199 -45,053 -42,581 -35,771 -26,278 -21,654 -24,388 -26,437 -26,669 -34,817

  17. Pacific Region Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Million Cubic Feet) - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Pacific Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 -6,428 -10,631 -3,098 -14,687 -15,553 -18,935 -5,226 21,508 26,741 10,233 -13,013 -77,412 2014 -73,745 -134,228 -151,370 -126,913 -108,676 -88,833 -85,846 -63,506 -59,951 -41,003 -28,478

  18. East Region Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) East Region Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 605,224 419,836 303,741 362,496 488,370 606,051 678,197 759,995 854,238 910,008 851,251 688,716 2014 451,335 271,801 167,715 213,475 349,739 474,624 580,937 689,328 805,733 892,328 831,398 742,486 2015 533,537 338,726 239,291 308,664 451,773 572,878 657,591 762,518 856,308 915,094 910,246 852,876 2016 629,905

  19. East Region Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) East Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 -59,770 -101,657 -207,266 -202,799 -176,110 -131,033 -101,059 -80,666 -54,688 -45,655 -40,177 -105,210 2014 -153,889 -148,035 -136,025 -149,021 -138,631 -131,428 -97,260 -70,667 -48,505 -17,679

  20. U.S. Natural Gas Non-Salt Underground Storage - Working Gas (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas (Million Cubic Feet) U.S. Natural Gas Non-Salt Underground Storage - Working Gas (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 1,531,928 1,053,730 915,878 1,122,203 1,495,691 1,839,607 2,209,565 2,542,126 2,841,503 3,002,400 2,904,404 2,536,416 1995 1,972,316 1,477,193 1,273,311 1,313,255 1,594,809 1,935,579 2,225,266 2,431,646 2,721,269 2,908,317 2,644,778 2,081,635 1996 1,403,589 973,002 720,077 796,966 1,098,675 1,457,649 1,826,743

  1. U.S. Total Natural Gas in Underground Storage (Working Gas) (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) U.S. Total Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 NA NA NA NA NA NA NA NA NA NA NA 2,034,000 1974 NA NA NA NA NA NA NA NA NA 2,403,000 NA 2,050,000 1975 NA NA NA NA NA NA NA NA 2,468,000 2,599,000 2,541,000 2,212,000 1976 1,648,000 1,444,000 1,326,000 1,423,000 1,637,000 1,908,000 2,192,000 2,447,000 2,650,000 2,664,000 2,408,000 1,926,000 1977 1,287,000 1,163,000

  2. Injection of natural gas in the blast furnace at high rates: Field experiments at Armco Steel Company. Topical technical report, January 1990-September 1992

    SciTech Connect

    Agarwall, J.C.; Brown, F.C.; Chin, D.L.; Frydenlund, A.R.

    1993-04-01

    A study of the benefits of the injection of natural gas as a supplemental fuel for commercial blast furnaces is presented. Tests were carried out for sustained periods at natural gas injection levels of 150 and 200 pounds per therm (lb/thm). Average coke replacement ratios of 1.30 pounds of coke per pound of natural gas injected and productivity increases of about 10% were achieved at a gas injection rate of 200 lb/thm. The results were obtained without adverse effects on hot metal chemistry or furnace operability. The ability of natural gas to effectively replace an appreciable amount of coke should enable a decrease in coke production levels.

  3. Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work?

    Alternative Fuels and Advanced Vehicles Data Center

    Natural Gas Cars Work? to someone by E-mail Share Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work? on Facebook Tweet about Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work? on Twitter Bookmark Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work? on Google Bookmark Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work? on Delicious Rank Alternative Fuels Data Center: How Do Bi-fuel Natural Gas Cars Work? on Digg Find More places

  4. A desiccant/steam-injected gas-turbine industrial cogeneration system

    SciTech Connect

    Jody, B.J.; Daniels, E.J.; Karvelas, D.E.; Teotia, A.P.S.

    1993-12-31

    An integrated desiccant/steam-injected gas-turbine system was evaluated as an industrial cogenerator for the production of electricity and dry, heated air for product drying applications. The desiccant can be regenerated using the heated, compressed air leaving the compressor. The wet stream leaves the regenerator at a lower temperature than when it entered the desiccant regenerator, but with little loss of energy. The wet stream returns to the combustion chamber of the gas-turbine system after preheating by exchanging heat with the turbine exhaust strewn. Therefore, the desiccant is regenerated virtually energy-free. In the proposed system, the moisture-laden air exiting the desiccant is introduced into the combustion chamber of the gas-turbine power system. This paper discusses various possible design configurations, the impact of increased moisture content on the combustion process, the pressure drop across the desiccant regenerator, and the impact of these factors on the overall performance of the integrated system. A preliminary economic analysis including estimated potential energy savings when the system is used in several drying applications, and equipment and operating costs are also presented.

  5. A desiccant/steam-injected gas-turbine industrial cogeneration system

    SciTech Connect

    Jody, B.J.; Daniels, E.J.; Karvelas, D.E.; Teotia, A.P.S.

    1993-01-01

    An integrated desiccant/steam-injected gas-turbine system was evaluated as an industrial cogenerator for the production of electricity and dry, heated air for product drying applications. The desiccant can be regenerated using the heated, compressed air leaving the compressor. The wet stream leaves the regenerator at a lower temperature than when it entered the desiccant regenerator, but with little loss of energy. The wet stream returns to the combustion chamber of the gas-turbine system after preheating by exchanging heat with the turbine exhaust strewn. Therefore, the desiccant is regenerated virtually energy-free. In the proposed system, the moisture-laden air exiting the desiccant is introduced into the combustion chamber of the gas-turbine power system. This paper discusses various possible design configurations, the impact of increased moisture content on the combustion process, the pressure drop across the desiccant regenerator, and the impact of these factors on the overall performance of the integrated system. A preliminary economic analysis including estimated potential energy savings when the system is used in several drying applications, and equipment and operating costs are also presented.

  6. Missouri Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Missouri Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -114 -943 -336 775 774 774 773 -107 103 55 -146 1,291 1991 -410 79 -1,227 -201 487 592 893 913 620 617 807 1,083 1992 -216 381 1,107 542 286 333 304 220 216 189 -18 -13 1993 393 -220 -975 -996 -374 -69 -233 -135 -136 -112 -226 -70 1994 -245 1,036 1,842

  7. Alabama Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Alabama Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1996 -67 -133 -30 123 233 669 826 998 743 933 994 633 1997 156 40 226 203 337 -48 -197 -301 -376 -242 -356 405 1998 185 181 -92 24 -103 427 374 288 -376 -14 230 91 1999 29 103 39 -69 257 -156 88 -31 772 82 214 164 2000 63 175 802 599 219 615 462 381 -131 -196

  8. WETTABILITY ALTERATION OF POROUS MEDIA TO GAS-WETTING FOR IMPROVING PRODUCTIVITY AND INJECTIVITY IN GAS-LIQUID FLOWS

    SciTech Connect

    Abbas Firoozabadi

    2002-10-21

    The authors have performed a number of imbibition tests with the treated and untreated cores in nC{sub 10}, nC{sub 14}, and nC{sub 16} and a natural gas condensate liquid. Imbibition tests for nC{sub 14} and nC{sub 16} were also carried out at elevated temperatures of 100 C and 140 C. An experimental polymer synthesized for the purpose of this project was used in core treatment. Imbibition results are very promising and imply liquid condensate mobility enhancement in the treated core. They also performed flow tests to quantify the increase in well deliverability and to simulate flow under realistic field conditions. In the past we have performed extensive testing of wettability alteration in intermediate gas wetting for polymer FC759 at temperatures of 24 C and 90 C. The results were promising for the purpose of gas well deliverability improvement in gas condensate wells. We used FC759 to lower the surface energy of various rocks. The model fluids nC{sub 10}, and nC{sub 14} were used to represent condensate liquid, and air was used as the gas phase. A new (L-16349) polymer, which has been recently synthesized for the purpose of the project, was used in the work to be presented here. L-16349 is a water-soluble fluorochemical polymer, with low order, neutral PH and very low volatile organic compound (VOC < 9.1 g/l). It is light yellow in appearance and density in 25% solution is 1.1 g/cc. Polymer L-16349 is very safe from environmental considerations and it is economical for our purpose. In this work, in addition to nC{sub 10}, and nC{sub 14}, we used two other liquids nC{sub 16}, and a liquid condensate in order to study the effect of wettability alteration with a broader range of fluids.

  9. Comparisons between tokamak fueling of gas puffing and supersonic molecular beam injection in 2D simulations

    SciTech Connect

    Zhou, Y. L.; Wang, Z. H.; Xu, X. Q.; Li, H. D.; Feng, H.; Sun, W. G.

    2015-01-15

    Plasma fueling with high efficiency and deep injection is very important to enable fusion power performance requirements. It is a powerful and efficient way to study neutral transport dynamics and find methods of improving the fueling performance by doing large scale simulations. Two basic fueling methods, gas puffing (GP) and supersonic molecular beam injection (SMBI), are simulated and compared in realistic divertor geometry of the HL-2A tokamak with a newly developed module, named trans-neut, within the framework of BOUT++ boundary plasma turbulence code [Z. H. Wang et al., Nucl. Fusion 54, 043019 (2014)]. The physical model includes plasma density, heat and momentum transport equations along with neutral density, and momentum transport equations. Transport dynamics and profile evolutions of both plasma and neutrals are simulated and compared between GP and SMBI in both poloidal and radial directions, which are quite different from one and the other. It finds that the neutrals can penetrate about four centimeters inside the last closed (magnetic) flux surface during SMBI, while they are all deposited outside of the LCF during GP. It is the radial convection and larger inflowing flux which lead to the deeper penetration depth of SMBI and higher fueling efficiency compared to GP.

  10. The effects of gas-fluid-rock interactions on CO2 injection and storage: Insights from reactive transport modeling

    SciTech Connect

    Xiao, Y.; Xu, T.; Pruess, K.

    2008-10-15

    Possible means of reducing atmospheric CO{sub 2} emissions include injecting CO{sub 2} in petroleum reservoirs for Enhanced Oil Recovery or storing CO{sub 2} in deep saline aquifers. Large-scale injection of CO{sub 2} into subsurface reservoirs would induce a complex interplay of multiphase flow, capillary trapping, dissolution, diffusion, convection, and chemical reactions that may have significant impacts on both short-term injection performance and long-term fate of CO{sub 2} storage. Reactive Transport Modeling is a promising approach that can be used to predict the spatial and temporal evolution of injected CO{sub 2} and associated gas-fluid-rock interactions. This presentation will summarize recent advances in reactive transport modeling of CO{sub 2} storage and review key technical issues on (1) the short- and long-term behavior of injected CO{sub 2} in geological formations; (2) the role of reservoir mineral heterogeneity on injection performance and storage security; (3) the effect of gas mixtures (e.g., H{sub 2}S and SO{sub 2}) on CO{sub 2} storage; and (4) the physical and chemical processes during potential leakage of CO{sub 2} from the primary storage reservoir. Simulation results suggest that CO{sub 2} trapping capacity, rate, and impact on reservoir rocks depend on primary mineral composition and injecting gas mixtures. For example, models predict that the injection of CO{sub 2} alone or co-injection with H{sub 2}S in both sandstone and carbonate reservoirs lead to acidified zones and mineral dissolution adjacent to the injection well, and carbonate precipitation and mineral trapping away from the well. Co-injection of CO{sub 2} with H{sub 2}S and in particular with SO{sub 2} causes greater formation alteration and complex sulfur mineral (alunite, anhydrite, and pyrite) trapping, sometimes at a much faster rate than previously thought. The results from Reactive Transport Modeling provide valuable insights for analyzing and assessing the dynamic

  11. Assumptions and Expectations for Annual Energy Outlook 2014: Oil and Gas Working Group

    Energy Information Administration (EIA) (indexed site)

    4: Oil and Gas Working Group AEO2014 Oil and Gas Supply Working Group Meeting Office of Petroleum, Gas, and Biofuels Analysis July 25, 2013 | Washington, DC http://www.eia.gov/forecasts/aeo/workinggroup/ WORKING GROUP PRESENTATION FOR DISCUSSION PURPOSES DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE Introduction/Background Office of Petroleum, Gas, and Biofuels Analysis Working Group Presentation for Discussion Purposes Washington, DC, July 25, 2013 DO NOT QUOTE OR CITE as results are

  12. Rapid gas hydrate formation processes: Will they work?

    SciTech Connect

    Brown, Thomas D.; Taylor, Charles E.; Bernardo, Mark P.

    2010-06-07

    Researchers at DOEs National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETLs 15-Liter Hydrate Cell. The results from this work demonstrate that the rapid and continuous formation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve.

  13. Rapid gas hydrate formation processes: Will they work?

    DOE PAGES [OSTI]

    Brown, Thomas D.; Taylor, Charles E.; Bernardo, Mark P.

    2010-06-07

    Researchers at DOE’s National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETL’s 15-Liter Hydrate Cell. The results from this work demonstrate that the rapid and continuousmore » formation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve.« less

  14. Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 1

    SciTech Connect

    2000-03-02

    The transportation sector accounts for approximately 65% of US petroleum consumption. Consumption for light-duty vehicles has stabilized in the last 10--15 years; however, consumption in the heavy-duty sector has continued to increase. For various reasons, the US must reduce its dependence on petroleum. One significant way is to substitute alternative fuels (natural gas, propane, alcohols, and others) in place of petroleum fuels in heavy-duty applications. Most alternative fuels have the additional benefit of reduced exhaust emissions relative to petroleum fuels, thus providing a cleaner environment. The best long-term technology for heavy-duty alternative fuel engines is the 4-stroke cycle, direct injected (DI) engine using a single fuel. This DI, single fuel approach maximizes the substitution of alternative fuel for diesel and retains the thermal efficiency and power density of the diesel engine. This report summarizes the results of the first year (Phase 1) of this contract. Phase 1 focused on developing a 4-stroke cycle, DI single fuel, alternative fuel technology that will duplicate or exceed diesel power density and thermal efficiency, while having exhaust emissions equal to or less than the diesel. Although the work is currently on a 3500 Series DING engine, the work is viewed as a basic technology development that can be applied to any engine. Phase 1 concentrated on DING engine component durability, exhaust emissions, and fuel handling system durability. Task 1 focused on identifying primary areas (e.g., ignition assist and gas injector systems) for future durability testing. In Task 2, eight mode-cycle-averaged NO{sub x} emissions were reduced from 11.8 gm/hp-hr (baseline conditions) to 2.5 gm/hp-hr (modified conditions) on a 3501 DING engine. In Task 3, a state-of-the-art fuel handling system was identified.

  15. U.S. Natural Gas Salt Underground Storage - Working Gas (Million Cubic

    Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas (Million Cubic Feet) U.S. Natural Gas Salt Underground Storage - Working Gas (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 47,455 36,864 41,979 49,646 58,678 56,813 63,882 64,460 70,583 72,447 73,277 69,641 1995 72,965 64,476 58,510 66,025 73,529 78,437 76,026 63,026 80,949 87,711 83,704 71,638 1996 58,880 47,581 37,918 56,995 62,439 71,476 70,906 75,927 84,962 88,061 87,029 85,140 1997 57,054 49,490 55,865 58,039 73,265 79,811 65,589 66,536

  16. Underground Natural Gas Working Storage Capacity - U.S. Energy Information

    Energy Information Administration (EIA) (indexed site)

    Administration Underground Natural Gas Working Storage Capacity With Data for November 2015 | Release Date: March 16, 2016 | Next Release Date: February 2017 Previous Issues Year: 2016 2015 2014 2013 2012 2011 prior issues Go Natural gas storage capacity nearly unchanged nationally, but regions vary U.S. natural gas working storage capacity (in terms of design capacity and demonstrated maximum working gas volumes) as of November 2015 was essentially flat compared to November 2014, with some

  17. Maryland Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Maryland Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -862 -85 724 658 416 -1,091 -1,477 -807 2,724 -222 -1,505 5,333 1991 4,470 4,339 1,613 1,801 727 1,324 628 202 -123 -686 1,727 2,620 1992 900 -745 -1,784 -3,603 -1,779 -745 -328 -176 -219 356 579 -1,431 1993 153 742 1,488 1,891 777 -736 -1,464 -2,133

  18. Michigan Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Michigan Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -46,336 -12,518 16,386 37,537 39,350 53,475 75,155 66,399 51,354 56,272 78,572 103,458 1991 37,515 32,421 33,438 66,819 45,861 39,009 20,626 -3,335 -36,217 -14,370 -61,674 -66,823 1992 -28,428 -40,296 -82,921 -108,640 -91,199 -80,473 -64,200 -42,476

  19. Montana Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Montana Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 705 2,167 1,643 1,813 -2,403 355 272 -26 131 59 561 542 1991 -4,514 -2,633 -2,648 -1,702 -3,097 151 -280 -908 -3,437 -6,076 -7,308 -6,042 1992 -68,442 -68,852 -67,958 -67,769 -67,999 -68,527 -69,209 -69,883 -70,428 -70,404 -71,019 -73,067 1993 -14,437

  20. Nebraska Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Nebraska Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -3,131 -3,119 -3,529 -3,306 -1,630 -1,017 244 -266 -458 -1,071 -1,072 157 1992 482 508 1,184 660 -762 -277 2,037 3,311 3,592 3,600 1,413 350 1993 -1,474 -2,431 -3,424 -3,068 -1,752 -1,058 -532 116 439 -49,834 -49,012 -47,951 1994 -47,626 -48,394 -47,215

  1. Alaska Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Alaska Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 NA NA NA NA NA NA NA NA NA NA NA NA 2014 11,087 5,754 6,824 6,119 5,428 6,065 5,421 4,685 3,365 1,565 3,028 5,179 2015 4,768 4,958 3,824 3,761 3,574 2,105 2,020 1,381 723 881 189 -679 2016 -515 164 850 2,474 4,360 5,751 7,556 9,446 - = No Data Reported; -- =

  2. Alaska Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Alaska Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 NA NA NA NA NA NA NA NA NA NA NA NA 2014 123.8 41.4 49.7 42.7 35.5 37.5 31.7 25.2 16.5 7.1 14.3 26.1 2015 23.8 25.2 18.6 18.4 17.3 9.5 9.0 5.9 3.0 3.7 0.8 -2.7 2016 -2.1 0.7 3.5 10.2 18.0 23.6 30.8 38.3 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  3. Arkansas Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Arkansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -925 -513 -486 -557 -855 -813 -453 -125 98 112 82 297 1991 -381 -716 -999 -1,230 -1,199 -1,333 -1,373 -1,840 -2,119 -2,147 -2,697 -3,134 1992 -1,855 -2,008 -2,040 -1,913 -2,046 -1,875 -1,510 -861 -426 -502 -100 73 1993 100 -170 -256 -297 -803 -1,041

  4. California Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) California Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 13,690 18,121 8,849 5,853 7,132 14,219 18,130 10,561 13,390 31,974 19,181 9,703 1991 6,425 26,360 4,734 4,680 6,001 17,198 26,493 26,589 17,703 3,011 -3,286 14,947 1992 -6,546 -23,935 -22,706 -29,553 -29,442 -31,729 -31,331 -21,662 -2,945 7,561 4,600

  5. Ohio Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Ohio Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 1,596 507 381 -2,931 -46 -596 -311 -234 178 167 7,030 9,898 1991 19,571 17,816 10,871 17,001 13,713 16,734 12,252 11,416 8,857 5,742 -6,023 -8,607 1992 -14,527 -26,506 -45,308 -51,996 -46,282 -36,996 -26,224 -22,672 -22,086 -18,888 -11,177 -16,353 1993 -11,967

  6. Tennessee Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 184 1999 197 189 118 122 119 262 235 178 169 171 125 68 2000 34 -17 51 68 53 -90 -197 -274 -377 -433 -377 -236 2001 -68 48 38 32 153 266 298 360 407 420 65 -22 2002 24 85 159 228 100 -16 -60 -126 -176

  7. Texas Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Texas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 21,315 40,513 43,111 18,628 12,189 2,033 47 -10,549 -21,072 -9,288 -13,355 -8,946 1991 -42,316 -43,449 -37,554 -58,118 -54,100 -46,988 -56,199 -48,651 -34,294 -48,087 -70,444 -48,747 1992 5,209 -1,207 -6,517 -21,448 -17,577 -24,644 -6,465 9,218 -3,044 -2,525

  8. Utah Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Utah Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 6,258 1,922 -2,167 -243 10 2,672 -2,738 -4,873 -6,032 -7,692 -923 338 1992 -6,698 -535 4,172 3,577 4,237 4,004 2,095 84 -3,541 -5,140 1,162 1,110 1993 -850 -4,870 -7,443 -9,206 -6,521 -660 270 742 2,661 8,010 4,211 6,489 1994 7,656 4,514 6,002 8,910 9,109 5,722

  9. Colorado Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Colorado Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 701 995 446 26 639 1,368 2,249 3,219 1,102 2,496 892 1991 -1,225 1,811 40 2,493 3,883 3,621 1,685 1,583 1,282 1,616 2,927 2,233 1992 6,816 5,146 5,417 2,679 1,253 -728 -859 310 1,516 2,085 -2,078 -3,827 1993 -4,453 -6,128 -1,947 -1,204 1,853 4,502 3,520

  10. Illinois Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Illinois Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 9,275 18,043 13,193 1,851 5,255 9,637 5,108 8,495 9,773 7,534 9,475 11,984 1991 -9,933 -7,259 454 6,145 6,270 3,648 2,744 1,010 -13 7,942 -12,681 -9,742 1992 -9,345 -8,466 -9,599 -19,126 -16,878 -15,372 -13,507 -9,010 -7,228 -7,653 -6,931 -18,707 1993

  11. Indiana Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Indiana Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -3,295 -2,048 303 1,673 2,267 2,054 632 690 1,081 1,169 1,343 2,765 1991 2,450 1,002 -617 -1,537 -1,372 -2,052 -995 -41 274 4,477 815 -517 1992 -1,493 -820 -1,663 -1,510 -2,353 -796 1,038 506 1,229 -2,650 -2,283 -922 1993 374 -217 1,229 2,820 2,636 2,160

  12. Iowa Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Iowa Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -2,696 -5,556 -4,018 -2,430 -2,408 3,493 3,414 4,058 11,806 19,414 13,253 13,393 1992 -4,224 -6,407 -6,304 -5,070 -1,061 -3,484 2,536 6,836 6,037 3,618 2,568 -3,773 1993 -49,040 -46,415 -45,078 -43,755 -45,456 -45,569 -46,271 -46,798 -44,848 -48,360 -45,854

  13. Kansas Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) Kansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -10,362 -8,989 -8,480 -6,853 -3,138 -3,221 -2,686 -2,091 824 166 -307 3,561 1991 -6,300 -645 -100 -132 5,625 8,255 -439 -9,003 -13,999 -9,506 -35,041 -11,017 1992 16,928 8,288 4,215 1,589 -2,700 -7,788 -6,391 1,723 1,181 -7,206 -7,569 -20,817 1993 -31,418

  14. Kentucky Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Kentucky Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -1,772 682 336 86 308 -489 138 -272 -702 -351 130 2,383 1991 21,249 14,278 11,919 15,552 13,179 11,123 8,684 4,865 1,110 -2,624 -4,707 -1,444 1992 4,569 6,818 5,559 -712 -4,310 -6,053 -7,850 -9,429 -8,687 2,440 7,441 7,127 1993 2,921 -6,726 -11,466

  15. U.S. Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Million Cubic Feet) Million Cubic Feet) U.S. Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 NA NA NA NA NA NA NA NA NA NA NA 305,000 1974 NA NA NA NA NA NA NA NA NA NA NA 16,000 1975 NA NA NA NA NA NA NA NA NA 196,000 NA 162,000 1976 NA NA NA NA NA NA NA NA 182,000 65,000 -133,000 -286,000 1977 -361,000 -281,000 -111,000 4,000 94,000 122,000 156,000

  16. Huge natural gas reserves central to capacity work, construction plans in Iran

    SciTech Connect

    Not Available

    1994-07-11

    Questions about oil production capacity in Iran tend to mask the country's huge potential as a producer of natural gas. Iran is second only to Russia in gas reserves, which National Iranian Gas Co. estimates at 20.7 trillion cu m. Among hurdles to Iran's making greater use of its rich endowment of natural gas are where and how to sell gas not used inside the country. The marketing logistics problem is common to other Middle East holders of gas reserves and a reason behind the recent proliferation of proposals for pipeline and liquefied natural gas schemes targeting Europe and India. But Iran's challenges are greater than most in the region. Political uncertainties and Islamic rules complicate long-term financing of transportation projects and raise questions about security of supply. As a result, Iran has remained mostly in the background of discussions about international trade of Middle Eastern gas. The country's huge gas reserves, strategic location, and existing transport infrastructure nevertheless give it the potential to be a major gas trader if the other issues can be resolved. The paper discusses oil capacity plans, gas development, gas injection for enhanced oil recovery, proposals for exports of gas, and gas pipeline plans.

  17. Fast Acting Eddy Current Driven Valve for Massive Gas Injection on ITER

    SciTech Connect

    Lyttle, Mark S; Baylor, Larry R; Carmichael, Justin R; Combs, Stephen Kirk; Ericson, Milton Nance; Ezell, N Dianne Bull; Meitner, S. J.; Rasmussen, David A; Warmack, Robert J Bruce; Maruyama, So; Kiss, Gabor

    2015-01-01

    Tokamak plasma disruptions present a significant challenge to ITER as they can result in intense heat flux, large forces from halo and eddy currents, and potential first-wall damage from the generation of multi-MeV runaway electrons. Massive gas injection (MGI) of high Z material using fast acting valves is being explored on existing tokamaks and is planned for ITER as a method to evenly distribute the thermal load of the plasma to prevent melting, control the rate of the current decay to minimize mechanical loads, and to suppress the generation of runaway electrons. A fast acting valve and accompanying power supply have been designed and first test articles produced to meet the requirements for a disruption mitigation system on ITER. The test valve incorporates a flyer plate actuator similar to designs deployed on TEXTOR, ASDEX upgrade, and JET [1 3] of a size useful for ITER with special considerations to mitigate the high mechanical forces developed during actuation due to high background magnetic fields. The valve includes a tip design and all-metal valve stem sealing for compatibility with tritium and high neutron and gamma fluxes.

  18. Differences Between Monthly and Weekly Working Gas In Storage

    Weekly Natural Gas Storage Report

    levels. These are estimated from volume data provided by a sample of operators that report on Form EIA-912, "Weekly Underground Natural Gas Storage Report." The EIA first...

  19. Midwest Region Natural Gas Working Underground Storage Capacity (Million

    Gasoline and Diesel Fuel Update

    May 2003 1 Despite a national economic slowdown and a 4.9 percent drop in overall U.S. natural gas consumption in 2001, 1 more than 3,571 miles of pipeline and a record 12.8 billion cubic feet per day (Bcf/d) of natural gas pipeline capacity were added to the national pipeline network during 2002 (Table 1). The estimated cost was $4.4 billion. Overall, 54 natural gas pipeline projects were completed during 2002 (Figure 1, Table 2). 2 Of these, 34 were expansions of existing pipeline systems or

  20. Alabama Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    0 1 2 2 15 1996-2014 Lease Condensate (million bbls) 0 0 0 0 1 0 1998-2014 Total Gas (billion cu ft) 126 162 102 40 73 36 1996-2014 Nonassociated Gas (billion cu ft) 126 162 101 38 71 26 1996-2014 Associated Gas (billion cu ft) 0 0 1 2 2 1 (Million Cubic Feet)

    Alabama Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Alabama Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5

  1. Assumptions and Expectations for Annual Energy Outlook 2015: Oil and Gas Working Group

    Energy Information Administration (EIA) (indexed site)

    Assumptions and Expectations for Annual Energy Outlook 2016: Oil and Gas Working Group AEO2016 Oil and Gas Supply Working Group Meeting Office of Petroleum, Gas, and Biofuels Analysis December 1, 2015| Washington, DC http://www.eia.gov/forecasts/aeo/workinggroup/ WORKING GROUP PRESENTATION FOR DISCUSSION PURPOSES DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE We welcome feedback on our assumptions and documentation * The AEO Assumptions report http://www.eia.gov/forecasts/aeo/assumptions/

  2. Assumptions and Expectations for Annual Energy Outlook 2017: Oil and Gas Working Group

    Energy Information Administration (EIA) (indexed site)

    Oil and Gas Working Group AEO2017 Oil and Gas Supply Working Group Meeting Office of Petroleum, Gas, and Biofuels Analysis August 25, 2016| Washington, DC http://www.eia.gov/forecasts/aeo/workinggroup/ WORKING GROUP PRESENTATION FOR DISCUSSION PURPOSES DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE Overview * "Short" AEO2017 with extension of model projection period to 2050 * World oil prices * Upstream - Offshore Gulf of Mexico and Alaska - Feedback on AEO2016 results *

  3. Louisiana Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Louisiana Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 22.5 -6.7 -11.5 -6.1 4.7 11.3 9.9 6.6 10.0 12.0 -0.1 -13.0 1992 -15.0 -16.6 -17.6 -16.9 -13.0 -14.5 -14.2 -9.8 -8.6 -8.0 -5.3 -9.7 1993 -14.1 -27.1 -40.9 -42.3 -18.5 -3.2 9.0 15.5 21.5 17.1 14.1 13.8 1994 8.5 40.4 69.8 104.5 54.4 28.4 23.9 17.6 8.8 5.4 10.4 15.6 1995 29.7 13.7 22.0

  4. Maryland Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Maryland Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 103.9 379.8 71.8 60.5 13.1 20.1 7.2 1.8 -0.9 -4.6 13.4 22.0 1992 10.3 -13.6 -46.2 -75.4 -28.4 -9.4 -3.5 -1.5 -1.6 2.5 4.0 -9.9 1993 1.6 15.7 71.7 160.6 17.3 -10.3 -16.3 -18.7 -12.6 -1.8 -2.5 -8.9 1994 -45.2 -46.8 -3.2 53.1 28.2 27.5 36.9 27.2 13.4 4.6 -3.5 10.5 1995 103.8 130.7 91.8

  5. Michigan Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Michigan Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 12.0 12.8 14.6 30.2 17.0 11.7 5.0 -0.7 -6.8 -2.6 -11.4 -14.2 1992 -8.1 -14.1 -31.6 -37.7 -28.9 -21.6 -14.9 -8.9 1.2 -1.2 1.1 -2.0 1993 -7.5 -20.7 -25.8 -17.2 -1.0 3.7 5.2 7.6 6.1 6.7 6.2 7.4 1994 -4.8 -0.4 22.1 37.4 24.6 15.8 10.2 7.2 6.2 5.4 12.3 21.2 1995 45.7 54.3 51.8 20.6 8.0 3.8

  6. Mississippi Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Mississippi Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 31.9 17.1 14.2 15.5 11.1 7.9 -1.1 -5.7 -3.6 -2.3 -15.3 -16.4 1992 -6.8 1.1 -4.7 -16.9 -14.3 -8.0 -2.7 -5.4 -2.8 -7.0 5.6 3.5 1993 13.6 -2.2 -12.3 -6.0 1.7 0.0 0.9 6.3 4.6 1.9 -35.2 -40.7 1994 -53.0 -55.0 -36.7 -28.8 -29.8 -34.1 -28.0 -22.8 -26.7 -21.5 26.7 39.2 1995 50.8 54.7 11.0

  7. Missouri Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Missouri Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -5.1 1.4 -20.3 -2.8 6.8 8.3 12.5 12.3 7.8 7.6 9.9 13.8 1992 -2.8 6.5 23.0 7.8 3.7 4.3 3.8 2.6 2.5 2.2 -0.2 -0.1 1993 5.3 -3.5 -16.4 -13.3 -4.7 -0.9 -2.8 -1.6 -1.6 -1.3 -2.5 -0.8 1994 -3.1 17.2 37.2 -28.6 -19.3 -6.9 -4.2 -4.1 -3.3 -3.3 0.7 -1.0 1995 7.9 12.0 16.0 64.0 35.0 10.4 5.7 6.0

  8. Montana Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Montana Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -2.5 -1.5 -1.5 -1.0 -1.7 0.1 -0.2 -0.5 -1.8 -3.2 -3.9 -3.3 1992 -38.1 -38.6 -38.4 -38.3 -38.2 -38.2 -38.2 -38.3 -38.6 -38.8 -39.8 -41.8 1993 -13.0 -15.6 -17.8 -19.4 -21.2 -22.4 -22.0 -22.3 -21.6 -20.7 -20.8 -19.6 1994 -19.3 -21.6 -20.5 -19.8 -17.7 -14.9 -14.5 -13.6 -12.0 -10.7 -9.8 -9.5

  9. Nebraska Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Nebraska Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -5.7 -5.8 -6.6 -6.0 -2.9 -1.8 0.4 -0.5 -0.8 -1.8 -1.9 0.3 1992 0.9 1.0 2.4 1.3 -1.4 -0.5 3.6 5.9 6.3 6.3 2.5 0.6 1993 -2.8 -4.7 -6.6 -5.9 -3.3 -1.9 -0.9 0.2 0.7 -82.3 -84.6 -88.0 1994 -93.2 -98.5 -98.2 -96.2 -92.3 -91.2 -88.8 -88.5 -85.3 -7.5 12.8 23.1 1995 74.4 582.5 367.3 113.6 15.1

  10. Alabama Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Alabama Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1996 221.1 244.8 179.6 64.8 86.8 112.2 130.5 1997 36.2 10.9 111.7 57.1 68.4 -5.0 -17.0 -19.4 -19.9 -12.1 -19.0 36.2 1998 31.5 45.0 -21.4 4.3 -12.4 46.2 38.7 23.0 -24.8 -0.8 15.1 6.0 1999 3.8 17.6 11.5 -11.9 35.3 -11.6 6.5 -2.0 67.7 4.7 12.2 10.2 2000 7.9 25.4 213.4 116.8 22.2 51.5 32.4 25.3

  11. Arkansas Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Arkansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -4.4 -8.3 -11.6 -14.2 -13.7 -14.5 -14.1 -18.0 -20.2 -20.4 -25.8 -30.6 1992 -22.4 -25.3 -26.8 -25.8 -27.1 -23.8 -18.0 -10.3 -5.1 -6.0 -1.3 1.0 1993 1.6 -2.9 -4.6 -5.4 -14.6 -17.3 -27.6 -34.0 -37.6 -37.9 -42.3 -48.2 1994 -63.6 -74.6 -86.5 -87.0 -71.6 -60.3 -47.2 -35.4 -31.0 -29.2 -21.3

  12. California Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) California Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 5.1 24.7 4.3 3.5 3.8 10.1 15.1 15.0 9.7 1.5 -1.7 9.7 1992 -4.9 -18.0 -19.6 -21.6 -18.0 -16.9 -15.6 -10.6 -1.5 3.8 2.4 -16.7 1993 -15.0 -19.6 8.1 2.5 3.1 -2.6 3.4 1.5 1.3 1.5 0.5 17.0 1994 13.4 -12.0 -24.5 -13.5 -10.9 -5.7 -8.4 -8.0 -4.2 -3.3 -6.0 -2.0 1995 7.4 63.0 54.5 20.8 14.6

  13. Wyoming Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Wyoming Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 0.9 2.6 3.7 2.8 1.8 3.0 2.5 2.0 -0.2 -1.8 -2.5 -2.7 1992 -43.8 -46.9 -48.5 -48.7 -48.6 -49.4 -49.4 -50.6 -50.1 -51.9 -53.3 -58.2 1993 -32.4 -36.0 -35.5 -33.5 -30.9 -25.0 -21.0 -16.0 -14.5 -8.3 -12.5 -8.1 1994 4.1 2.9 8.2 10.1 12.7 5.3 0.8 0.6 1.5 1.5 11.2 14.0 1995 3.4 11.3 0.7 -7.6

  14. Ohio Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Ohio Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 19.5 22.4 15.4 23.1 14.3 14.4 9.1 7.4 5.2 3.1 -3.3 -5.5 1992 -12.1 -27.3 -55.6 -57.4 -42.1 -27.9 -17.8 -13.7 -12.2 -10.0 -6.4 -11.0 1993 -11.3 -30.2 -60.3 -56.1 -31.6 -21.4 -13.8 -8.2 -0.9 -3.4 -7.9 -16.2 1994 -41.7 -61.0 -63.3 24.5 16.2 6.8 8.5 6.1 2.5 4.6 10.6 27.3 1995 67.7 179.6 562.8 43.0

  15. Oregon Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Oregon Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -0.1 1991 53.6 99.8 77.4 -30.5 -38.2 -24.2 -10.4 -2.9 1.3 3.3 4.2 8.6 1992 1.6 -10.3 -10.3 11.6 40.4 25.3 14.2 10.7 6.8 4.4 -9.9 -11.9 1993 -21.1 -25.4 -8.3 -9.2 -3.5 -7.0 -5.9 -4.7 -2.9 1.1 6.4 -1.1 1994 12.9 27.1 26.3 -67.7 -49.1 -32.2 -25.7 -21.5 -18.6 -20.3 -18.4 -14.3 1995 -25.9 -14.7

  16. Tennessee Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1998 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1999 43.0 55.3 41.7 61.2 59.6 131.5 70.6 38.1 29.2 25.1 16.0 8.6 2000 5.3 -3.2 12.8 21.0 16.7 -19.5 -34.7 -42.4 -50.4 -50.8 -41.4 -27.6 2001 -9.8 9.3 8.4 8.3 41.3 71.7 80.1 97.0 109.6

  17. Texas Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Texas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -13.2 -13.8 -12.2 -16.7 -15.1 -12.7 -14.7 -12.9 -9.1 -12.1 -17.5 -13.3 1992 1.9 -0.4 -2.4 -7.4 -5.8 -7.6 -2.0 2.8 -0.9 -0.7 -2.1 -9.0 1993 -41.9 -44.7 -46.6 -41.3 -35.7 -33.7 -35.4 -35.0 -36.7 -35.5 -35.3 -32.7 1994 -13.0 -30.4 -20.9 -13.7 -8.3 -8.3 -0.1 3.0 15.2 17.2 27.0 21.5 1995 49.9 85.3

  18. Utah Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Utah Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 48.7 19.2 -26.2 -3.2 0.1 32.2 -15.2 -19.1 -18.8 -21.7 -3.8 2.1 1992 -35.0 -4.5 68.2 48.2 46.1 36.5 13.8 0.4 -13.6 -18.6 5.0 6.8 1993 -6.8 -42.8 -72.3 -83.7 -48.5 -4.4 1.6 3.6 11.8 35.5 17.2 37.2 1994 66.2 69.4 210.9 497.9 131.8 40.0 34.2 32.4 40.9 25.7 26.4 36.0 1995 28.4 93.2 100.2 78.2 40.9

  19. West Virginia Natural Gas in Underground Storage - Change in Working Gas

    Energy Information Administration (EIA) (indexed site)

    from Same Month Previous Year (Percent) Percent) West Virginia Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 7.1 -3.2 -1.4 0.2 -3.4 -3.9 -4.7 -8.2 -10.5 -10.3 -16.6 -21.9 1992 -15.1 -26.4 -59.0 -61.0 -43.3 -36.0 -27.0 -19.0 -14.7 -8.4 -5.4 18.6 1993 28.7 15.6 28.7 37.5 46.9 48.1 35.0 30.1 32.3 24.3 19.9 -9.9 1994 -36.1 -44.0 -50.4 -9.9 -20.6 -12.2 -4.3 -1.7 -1.2 -1.0 2.5 8.2 1995

  20. Colorado Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Colorado Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -4.5 8.0 0.2 18.3 29.2 20.6 7.1 5.5 3.8 4.6 8.4 6.4 1992 25.9 21.0 30.9 16.6 7.3 -3.4 -3.4 1.0 4.3 5.7 -5.5 -10.4 1993 -13.5 -20.7 -8.5 -6.4 10.0 22.0 14.3 3.5 -1.4 -12.0 -15.0 -11.5 1994 -15.3 -17.8 -21.0 -34.7 -16.3 -25.8 -16.1 -9.6 -6.1 0.2 7.4 0.2 1995 2.9 10.9 -0.8 5.3 -17.3 7.8

  1. Illinois Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Illinois Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -4.2 -4.0 0.3 4.2 3.5 1.7 1.1 0.4 0.0 2.4 -3.8 -3.3 1992 -4.2 -4.8 -6.4 -12.6 -9.2 -7.2 -5.6 -3.3 -2.3 -2.3 -2.2 -6.6 1993 -24.0 -31.6 -36.3 -30.7 -24.7 -20.2 -17.4 -16.7 -14.3 -13.7 -11.6 -12.9 1994 -3.7 -1.1 10.0 6.3 -2.8 -4.3 -2.6 -1.9 -1.2 -0.2 0.0 4.9 1995 13.3 6.3 -0.8 -4.1 -24.0

  2. Indiana Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Indiana Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 11.0 5.4 -3.6 -8.8 -7.2 -9.9 -4.3 -0.2 0.9 13.4 2.4 -1.7 1992 -6.0 -4.2 -10.1 -9.5 -13.2 -4.2 4.7 1.9 3.9 -7.0 -6.5 -3.1 1993 1.6 -1.2 8.3 19.7 17.1 12.0 6.3 7.0 2.7 -1.9 -0.1 3.1 1994 -0.3 7.7 13.2 1.4 -4.7 -2.3 0.9 -0.1 -0.7 3.7 11.3 11.2 1995 17.4 9.6 8.0 8.6 11.8 7.0 -3.4 -5.3 -3.3

  3. Iowa Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Iowa Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -3.6 -8.4 -6.6 -4.0 -3.7 4.9 4.5 4.9 13.7 21.6 15.1 18.2 1992 -5.9 -10.5 -11.0 -8.6 -1.7 -4.7 3.2 7.9 6.2 3.3 2.5 -4.3 1993 -73.0 -85.1 -88.4 -81.1 -72.8 -64.5 -56.2 -50.3 -43.2 -42.8 -44.2 -51.6 1994 21.3 54.4 61.3 12.0 -0.1 -6.4 -6.3 -3.5 -4.3 1.5 5.3 7.2 1995 3.0 -5.8 -21.7 -39.9 -37.4 -20.3

  4. Kansas Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) Kansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -9.6 -1.2 -0.2 -0.3 11.7 15.5 -0.7 -11.7 -15.1 -9.6 -30.3 -11.8 1992 28.5 15.1 8.5 3.4 -5.0 -12.7 -9.9 2.5 1.5 -8.0 -9.4 -25.3 1993 -41.2 -47.7 -48.5 -45.3 -8.3 9.0 10.7 8.6 12.8 12.5 19.4 24.0 1994 18.1 26.1 43.8 52.2 5.8 -5.9 0.7 2.1 -3.5 -1.6 -3.1 -2.4 1995 11.9 13.5 -4.5 -4.2 -1.5 9.2 0.7

  5. Kentucky Natural Gas in Underground Storage - Change in Working Gas from

    Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Kentucky Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 36.3 23.0 19.6 25.2 19.8 15.5 10.9 5.6 1.2 -2.7 -5.1 -1.7 1992 5.7 8.9 7.7 -0.9 -5.4 -7.3 -8.9 -10.3 -9.2 2.6 8.5 8.4 1993 3.5 -8.1 -14.7 -13.7 -3.8 4.4 9.2 12.9 14.8 3.2 -1.2 -9.6 1994 -25.7 -31.2 -28.1 -20.1 -13.8 -10.6 -7.3 -4.7 -7.2 -4.8 1.4 4.5 1995 14.0 16.7 18.3 14.2 16.8 12.2

  6. U.S. Natural Gas in Underground Storage - Change in Working Gas from Same

    Energy Information Administration (EIA) (indexed site)

    Month Previous Year (Percent) Percent) U.S. Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 NA NA NA NA NA NA NA NA NA NA NA 17.6 1974 NA NA NA NA NA NA NA NA NA NA NA 0.8 1975 NA NA NA NA NA NA NA NA NA 8.2 NA 7.9 1976 NA NA NA NA NA NA NA NA 7.4 2.5 -5.2 -12.9 1977 -21.9 -19.5 -8.4 0.3 5.7 6.4 7.1 6.2 6.6 9.9 17.2 28.5 1978 41.3 12.6 -7.6 -13.7 -13.9 -9.6 -7.8 -3.8 -0.4 1.0 3.8 2.9

  7. Tennessee Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    Synthetic 1980-2003 Propane-Air 1980-2004

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2015 View History Net Withdrawals -453 1968-2015 Injections 665 1968-2015 Withdrawals 212 1968-201

    Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Michigan Minnesota Mississippi Missouri Montana Nebraska New Mexico New York Ohio Oklahoma Oregon Pennsylvania Rhode Island

  8. Texas Working Natural Gas Underground Storage Capacity (Million Cubic Feet)

    Gasoline and Diesel Fuel Update

    8-2015 From Gas Wells 27,421 23,791 15,953 13,650 10,902 9,055 1978-2015 From Oil Wells 1,153 0 552 386 298 266 1978-2015 From Shale Gas Wells 0 0 0 2012-2015 From Coalbed Wells 0 0 0 2012-2015 Repressuring 0 0 0 0 0 0 2003-2015 Vented and Flared 0 0 0 0 NA NA 2003-2015 Nonhydrocarbon Gases Removed 0 0 0 0 NA NA 2003-2015 Marketed Production 28,574 23,791 16,506 14,036 11,200 9,321 1992-2015 Dry Production 16,506 11,222 8,887 2012

    Propane-Air 1981-2005 Refinery Gas 1981-2005 Other

  9. AGA Producing Region Natural Gas Working Underground Storage Capacity

    Gasoline and Diesel Fuel Update

    (Million Cubic Feet) Base Gas) (Million Cubic Feet) AGA Eastern Consuming Region Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1994 2,700,245 2,697,308 2,696,823 2,698,489 2,699,802 2,699,840 2,700,331 2,701,227 2,701,285 2,702,703 2,702,571 2,703,149 1995 2,699,674 2,699,575 2,696,880 2,695,400 2,726,268 2,726,255 2,668,312 2,671,818 2,672,399 2,672,258 2,671,362 2,672,808 1996 2,670,906 2,670,070 2,646,056 2,654,836

  10. Western Consuming Region Natural Gas Working Underground Storage (Billion

    Gasoline and Diesel Fuel Update

    Shale Production (Billion Cubic Feet) West Virginia Shale Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 11 2010's 80 192 345 498 869 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Estimated Production West Virginia Shale Gas Proved Reserves, Reserves Changes,

  11. New Mexico Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    1

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2010 2011 2012 2013 2014 2015 View History Net Withdrawals -2,967 -2,028 -12,074 9,944 7,015 -19,897 1967-2015 Injections 18,643 19,738 22,732 14,077 14,010 26,085 1967-2015 Withdrawals 15,676 17,710 10,658 24,021 21,025 6,188 1967-2015

    Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Michigan Minnesota Mississippi

  12. West Virginia Working Natural Gas Underground Storage Capacity (Million

    Gasoline and Diesel Fuel Update

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2010 2011 2012 2013 2014 2015 View History Net Withdrawals 12,132 -32,304 26,959 15,043 -765 -28,151 1967-2015 Injections 171,179 197,202 153,479 189,906 186,131 191,719 1967-2015 Withdrawals 183,311 164,898 180,437 204,949 185,367 163,568 1967-201

    Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Michigan Minnesota Mississippi

  13. Government works with technology to boost gas output/usage

    SciTech Connect

    Nicoll, H.

    1996-10-01

    Specially treated ethane gas from fields of the Moomba area in the Cooper basin of South Australia now flows freely through 870 mi of interstate gas pipeline to an end-user in Sydney, New South Wales. This unprecedented usage of ethane is the result of a long-term cooperative agreement. The producer sought to provide the end-user with ethane gas for usage as a petrochemical feedstock to manufacture ethylene and plastic goods. The end-user had strict specifications for a low-CO{sub 2}, very dry ethane product with a small percentage of methane. In order to meet these, the producer committed millions of dollars to construct a high-technology, state-of-the-art ethane treatment facility in the Moomba area, and lay an extensive pipeline. Santos also contracted with the amines supplier to provide a high-performance, deep CO{sub 2} removal solvent with good corrosion prevention characteristics. The paper discusses the Moomba field overflow, gas treatment, government cooperation, and project completion.

  14. Salt Producing Region Natural Gas Working Underground Storage (Billion

    Gasoline and Diesel Fuel Update

    Energy Technology Laboratory Ken Kern Strategic Energy Analysis and Planning Division National Energy Technology Lab, Pittsburgh, PA June 16, 2015 Coal Baseload Asset Aging, Evaluating Impacts on Capacity Factors Workshop on Coal Fleet Aging and Performance, EIA Post-Conference Meeting, Renaissance Hotel, Washington D.C. Generation by fuel "As natural gas prices increase in the AEO2013 Reference case, the utilization rate of coal-fired generators returns to previous historical levels and

  15. Indiana Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    1 5 1 6 69 78 1967-2015 Propane-Air 1 5 1 6 69 78 1980-2015 Refinery Gas 1980-200

    Connecticut Delaware Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska New Jersey New Mexico New York North Carolina Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina Tennessee Texas Utah Virginia Washington West Virginia Wisconsin Wyoming AGA Producing Region AGA Eastern Consuming Region AGA Western Consuming

  16. Nebraska Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    12 9 4 2 376 29 1967-2015 Propane-Air 12 9 4 2 376 23 1980-2015 Biomass 0 0 6 1999

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2010 2011 2012 2013 2014 2015 View History Net Withdrawals 1,043 -2,925 1,897 440 -278 -786 1967-2015 Injections 8,146 10,482 6,349 9,578 9,998 8,058 1967-2015 Withdrawals 9,189 7,557 8,247 10,018 9,720 7,272 1967-2015

    Illinois Indiana Iowa

  17. Enhancing the use of coals by gas reburning-sorbent injection: Volume 4 -- Gas reburning-sorbent injection at Lakeside Unit 7, City Water, Light and Power, Springfield, Illinois. Final report

    SciTech Connect

    1996-03-01

    A demonstration of Gas Reburning-Sorbent Injection (GR-SI) has been completed at a cyclone-fired utility boiler. The Energy and Environmental Research Corporation (EER) has designed, retrofitted and tested a GR-SI system at City Water Light and Power`s 33 MWe Lakeside Station Unit 7. The program goals of 60% NO{sub x} emissions reduction and 50% SO{sub 2} emissions reduction were exceeded over the long-term testing period; the NO{sub x} reduction averaged 63% and the SO{sub 2} reduction averaged 58%. These were achieved with an average gas heat input of 22% and a calcium (sorbent) to sulfur (coal) molar ratio of 1.8. GR-SI resulted in a reduction in thermal efficiency of approximately 1% at full load due to firing natural gas which forms more moisture in flue gas than coal and also results in a slight increase in air heater exit gas temperature. Minor impacts on other areas of unit performance were measured and are detailed in this report. The project at Lakeside was carried out in three phases, in which EER designed the GR-SI system (Phase 1), completed construction and start-up activities (Phase 2), and evaluated its performance with both short parametric tests and a long-term demonstration (Phase 3). This report contains design and technical performance data; the economics data for all sites are presented in Volume 5.

  18. Pennsylvania Working Natural Gas Underground Storage Capacity (Million

    Gasoline and Diesel Fuel Update

    4 2 2 3 20 28 1967-2015 Synthetic 0 0 0 1980-2015 Propane-Air 4 2 2 3 20 28 1980-2015 Refinery Gas 1980-2005

    Connecticut Delaware Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska New Jersey New Mexico New York North Carolina Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina Tennessee Texas Utah Virginia Washington West Virginia Wisconsin Wyoming AGA Producing Region AGA Eastern Consuming

  19. Means for positively seating a piezoceramic element in a piezoelectric valve during inlet gas injection

    DOEpatents

    Wright, Kenneth E.

    1994-01-01

    A piezoelectric valve in a gas delivery system includes a piezoceramic element bonded to a valve seal and disposed over a valve seat, and retained in position by an O-ring and a retainer; an insulating ball normally biased by a preload spring against the piezoceramic element; an inlet gas port positioned such that upon admission of inlet gas into the valve, the piezoceramic element is positively seated. The inlet gas port is located only on the side of the piezoceramic element opposite the seal.

  20. Means for positively seating a piezoceramic element in a piezoelectric valve during inlet gas injection

    DOEpatents

    Wright, K.E.

    1994-08-23

    A piezoelectric valve in a gas delivery system includes a piezoceramic element bonded to a valve seal and disposed over a valve seat, and retained in position by an O-ring and a retainer; an insulating ball normally biased by a preload spring against the piezoceramic element; an inlet gas port positioned such that upon admission of inlet gas into the valve, the piezoceramic element is positively seated. The inlet gas port is located only on the side of the piezoceramic element opposite the seal. 3 figs.

  1. California Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    5,554 5,163 5,051 5,470 5,805 5,146 1978-2015 From Gas Wells 71 259 640 413 410 454 1978-2015 From Oil Wells 5,483 4,904 4,411 5,057 5,395 4,692 1978-2015 Repressuring 435 403 NA NA NA NA 1992-2015 Vented and Flared 0 0 NA NA NA NA 2003-2015 Nonhydrocarbon Gases Removed 0 0 NA NA NA NA 2003-2015 Marketed Production 5,120 4,760 5,051 5,470 5,805 5,146 1992-2015 Dry Production 5,051 5,952 5,139

    22,503 2,171 0 23 0 0 2007-2015 Import Price 4.76 3.57 -- 3.59 -- -- 2007-2015 Export Volume 43,278

  2. Louisiana Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    8-2015 From Gas Wells 63,222 64,448 67,801 70,015 54,080 47,609 1978-2015 From Oil Wells 6,614 6,778 5,443 7,735 7,243 5,508 1978-2015 Repressuring 116 120 NA NA NA NA 1992-2015 Vented and Flared 146 149 NA NA NA NA 1999-2015 Nonhydrocarbon Gases Removed NA NA NA NA NA NA 2003-2015 Marketed Production 69,574 70,957 73,244 77,750 61,322 53,117 1992-2015 Dry Production 68,145 58,077 48,945 2012

    249 435 553 560 517 478 2007-2015 Biomass 249 435 553 560 517 478 201

    90,867 60,554 20,132

  3. Maryland Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    115 89 116 107 809 818 1967-2015 Synthetic 0 0 0 1980-2015 Propane-Air 115 89 116 107 809 818 1980-2015 Refinery Gas 1980-2005 Other 0 0 0 1980

    43,431 13,981 2,790 5,366 11,585 12,091 1999-2015 Import Price 5.37 5.30 13.82 15.29 8.34 4.91 199

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2010 2011 2012 2013 2014 2015 View History Net Withdrawals 2,292 -1,721 2,383 -811 556

  4. Experimentally Measured Interfacial Area during Gas Injection into Saturated Porous Media: An Air Sparging Analogy

    SciTech Connect

    Crandall, Dustin; Ahmadi, Goodarz; Smith, Duane H., Bromhal, Grant

    2010-01-01

    The amount of interfacial area (awn) between air and subsurface liquids during air-sparging can limit the rate of site remediation. Lateral movement within porous media could be encountered during air-sparging operations when air moves along the bottom of a low-permeability lens. This study was conducted to directly measure the amount of awn between air and water flowing within a bench-scale porous flow cell during the lateral movement of air along the upper edge of the cell during air injections into an initially water-saturated flow cell. Four different cell orientations were used to evaluate the effect of air injection rates and porous media geometries on the amount of awn between fluids. Air was injected at flow rates that varied by three orders of magnitude, and for each flow cellover this range of injection rates little change in awn was noted. A wider variation in awn was observed when air moved through different regions for the different flow cell orientations. These results are in good agreement with the experimental findings of Waduge et al. (2007), who performed experiments in a larger sand-pack flow cell, and determined that air-sparging efficiency is nearly independent of flow rate but highly dependent on the porous structure. By directly measuring the awn, and showing that awn does not vary greatly with changes in injection rate, we show that the lack of improvement to remediation rates is because there is a weak dependence of the awn on the air injection rate.

  5. Assumptions and Expectations for Annual Energy Outlook 2015: Oil and Gas Working Group

    Energy Information Administration (EIA) (indexed site)

    5: Oil and Gas Working Group AEO2015 Oil and Gas Supply Working Group Meeting Office of Petroleum, Gas, and Biofuels Analysis August 7, 2014 | Washington, DC http://www.eia.gov/forecasts/aeo/workinggroup/ WORKING GROUP PRESENTATION FOR DISCUSSION PURPOSES DO NOT QUOTE OR CITE AS RESULTS ARE SUBJECT TO CHANGE Changes in release cycles for EIA's AEO and IEO * To focus more resources on rapidly changing energy markets and how they might evolve over the next few years, the U.S. Energy Information

  6. Modular ultrahigh vacuum-compatible gas-injection system with an adjustable gas flow for focused particle beam-induced deposition

    SciTech Connect

    Klingenberger, D.; Huth, M.

    2009-09-15

    A gas-injection system (GIS) heats up a powdery substance and transports the resulting gas through a capillary into a vacuum chamber. Such a system can be used to guide a (metal)organic precursor gas very close to the focal area of an electron or ion beam, where a permanent deposit is created and adheres to the substrate. This process is known as focused particle beam-induced deposition. The authors present design principles and give construction details of a GIS suitable for ultrahigh vacuum usage. The GIS is composed of several self-contained components which can be customized rather independently. It allows for a continuously adjustable gas-flow rate. The GIS was attached to a standard scanning electron microscope (JEOL 6100) and tested with the tungsten precursor W(CO){sub 6}. The analysis of the deposits by means of atomic force microscopy and energy dispersive x-ray spectroscopy provides clear evidence that excellent gas-flow-rate stability and ensuing growth rate and metal-content reproducibility are experienced.

  7. Alaska Working Natural Gas Underground Storage Capacity (Million Cubic

    Gasoline and Diesel Fuel Update

    From Gas Wells 42,034 36,202 32,875 27,149 22,653 16,462 1978-2015 From Oil Wells 328,114 328,500 274,431 305,253 342,482 354,196 1978-2015 Repressuring 310,329 301,516 269,203 272,772 324,092 329,820 1992-2015 Vented and Flared 2,139 1,690 2,525 1,549 776 640 1992-2015 Marketed Production 57,680 61,496 35,577 58,081 40,267 40,197 1992-2015 Dry Production 35,577 40,269 40,197 2012

    2004-2015

    30,100 16,398 9,342 0 13,310 16,519 1982-2015 Export Price 12.19 12.88 15.71 -- 15.74 7.49

  8. Work plan for ground water elevation data recorder/monitor well injection at Grand Junction, Colorado

    SciTech Connect

    Not Available

    1994-07-18

    The purpose of this document is to describe the work that will be performed and the procedures that will be followed during installation of ground water monitor wells and ground water elevation data recorders (data loggers) at the Grand Junction, Colorado, Uranium Mill Tailings Remedial Action (UMTRA) Project site. The monitor wells and data loggers will be used to gather required time-dependent data to investigate the interaction between the shallow aquifer and the Colorado River. Data collection objectives (DCO) identify reasons for collecting data. The following are DCOs for the Grand Junction ground water elevation data recorder/monitor well installation project: long-term continuous ground water level data and periodic ground water samples will be collected to better understand the relationship between surface and ground water at the site; water level and water quality data will eventually be used in future ground water modeling to more firmly establish boundary conditions in the vicinity of the Grand Junction processing site; modeling results will be used to demonstrate and document the potential remedial alternative of natural flushing.

  9. Continuous injection of an inert gas through a drill rig for drilling into potentially hazardous areas

    DOEpatents

    McCormick, Steve H.; Pigott, William R.

    1997-01-01

    A drill rig for drilling in potentially hazardous areas includes a drill having conventional features such as a frame, a gear motor, gear box, and a drive. A hollow rotating shaft projects through the drive and frame. An auger, connected to the shaft is provided with a multiplicity of holes. An inert gas is supplied to the hollow shaft and directed from the rotating shaft to the holes in the auger. The inert gas flows down the hollow shaft, and then down the hollow auger and out through the holes in the bottom of the auger into the potentially hazardous area.

  10. Continuous injection of an inert gas through a drill rig for drilling into potentially hazardous areas

    DOEpatents

    McCormick, S.H.; Pigott, W.R.

    1997-12-30

    A drill rig for drilling in potentially hazardous areas includes a drill having conventional features such as a frame, a gear motor, gear box, and a drive. A hollow rotating shaft projects through the drive and frame. An auger, connected to the shaft is provided with a multiplicity of holes. An inert gas is supplied to the hollow shaft and directed from the rotating shaft to the holes in the auger. The inert gas flows down the hollow shaft, and then down the hollow auger and out through the holes in the bottom of the auger into the potentially hazardous area. 3 figs.

  11. South Central Region Natural Gas in Underground Storage - Change in Working

    Energy Information Administration (EIA) (indexed site)

    Gas from Same Month Previous Year (Million Cubic Feet) - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) South Central Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 -101,888 -155,544 -335,881 -301,038 -208,037 -149,650 -71,958 -32,654 -17,109 -7,023 -55,429 -144,477 2014 -281,823 -324,789 -326,968 -286,719 -287,056 -272,324 -254,513

  12. EMC3-EIRENE modelling of toroidally-localized divertor gas injection experiments on Alcator C-Mod

    SciTech Connect

    Lore, Jeremy D.; Reinke, M. L.; LaBombard, Brian; Lipschultz, B.; Churchill, R. M.; Pitts, R. A.; Feng, Y.

    2014-09-30

    Experiments on Alcator C-Mod with toroidally and poloidally localized divertor nitrogen injection have been modeled using the three-dimensional edge transport code EMC3-EIRENE to elucidate the mechanisms driving measured toroidal asymmetries. In these experiments five toroidally distributed gas injectors in the private flux region were sequentially activated in separate discharges resulting in clear evidence of toroidal asymmetries in radiated power and nitrogen line emission as well as a ~50% toroidal modulation in electron pressure at the divertor target. The pressure modulation is qualitatively reproduced by the modelling, with the simulation yielding a toroidal asymmetry in the heat flow to the outer strike point. Finally, toroidal variation in impurity line emission is qualitatively matched in the scrape-off layer above the strike point, however kinetic corrections and cross-field drifts are likely required to quantitatively reproduce impurity behavior in the private flux region and electron temperatures and densities directly in front of the target.

  13. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    a large estimate of net injections of working gas into storage put downward pressure on spot and futures prices. Some parts of New England saw high temperatures only in the 70s for...

  14. Enhanced convective and film boiling heat transfer by surface gas injection

    SciTech Connect

    Duignan, M.R.; Greene, G.A. ); Irvine, T.F., Jr. . Dept. of Mechanical Engineering)

    1992-04-01

    Heat transfer measurements were made for stable film boiling of water over a horizontal, flat stainless steel plate from the minimum film boiling point temperature, T{sub SURFACE} {approximately}500K, to T{sub SURFACE} {approximately}950K. The pressure at the plate was approximately 1 atmosphere and the temperature of the water pool was maintained at saturation. The data were compared to the Berenson film-boiling model, which was developed for minimum film-boiling-point conditions. The model accurately represented the data near the minimum film-boiling point and at the highest temperatures measured, as long it was corrected for the heat transferred by radiation. On the average, the experimental data lay within {plus minus}7% of the model. Measurements of heat transfer were made without film boiling for nitrogen jetting into an overlying pool of water from nine 1-mm- diameter holes, drilled in the heat transfer plate. The heat flux was maintained constant at approximately 26.4 kW/m{sup 2}. For water-pool heights of less than 6cm the heat transfer coefficient deceased linearly with a decrease in heights. Above 6cm the heat transfer coefficient was unaffected. For the entire range of gas velocities measured (0 to 8.5 cm/s), the magnitude of the magnitude of the heat transfer coefficient only changed by approximately 20%. The heat transfer data bound the Konsetov model for turbulent pool heat transfer which was developed for vertical heat transfer surfaces. This agreement suggests that surface orientation may not be important when the gas jets do not locally affect the surface heat transfer. Finally, a database was developed for heat transfer from the plate with both film boiling and gas jetting occurring simultaneously, in a pool of water maintained at its saturation temperature. The effect of passing nitrogen through established film boiling is to increase the heat transfer from that surface. 60 refs.

  15. Enhanced convective and film boiling heat transfer by surface gas injection

    SciTech Connect

    Duignan, M.R.; Greene, G.A.; Irvine, T.F., Jr.

    1992-04-01

    Heat transfer measurements were made for stable film boiling of water over a horizontal, flat stainless steel plate from the minimum film boiling point temperature, T{sub SURFACE} {approximately}500K, to T{sub SURFACE} {approximately}950K. The pressure at the plate was approximately 1 atmosphere and the temperature of the water pool was maintained at saturation. The data were compared to the Berenson film-boiling model, which was developed for minimum film-boiling-point conditions. The model accurately represented the data near the minimum film-boiling point and at the highest temperatures measured, as long it was corrected for the heat transferred by radiation. On the average, the experimental data lay within {plus_minus}7% of the model. Measurements of heat transfer were made without film boiling for nitrogen jetting into an overlying pool of water from nine 1-mm- diameter holes, drilled in the heat transfer plate. The heat flux was maintained constant at approximately 26.4 kW/m{sup 2}. For water-pool heights of less than 6cm the heat transfer coefficient deceased linearly with a decrease in heights. Above 6cm the heat transfer coefficient was unaffected. For the entire range of gas velocities measured [0 to 8.5 cm/s], the magnitude of the magnitude of the heat transfer coefficient only changed by approximately 20%. The heat transfer data bound the Konsetov model for turbulent pool heat transfer which was developed for vertical heat transfer surfaces. This agreement suggests that surface orientation may not be important when the gas jets do not locally affect the surface heat transfer. Finally, a database was developed for heat transfer from the plate with both film boiling and gas jetting occurring simultaneously, in a pool of water maintained at its saturation temperature. The effect of passing nitrogen through established film boiling is to increase the heat transfer from that surface. 60 refs.

  16. Development of an automated high-temperature valveless injection system for online gas chromatography

    DOE PAGES [OSTI]

    Kreisberg, N. M.; Worton, D. R.; Zhao, Y.; Isaacman, G.; Goldstein, A. H.; Hering, S. V.

    2014-12-12

    A reliable method of sample introduction is presented for online gas chromatography with a special application to in situ field portable atmospheric sampling instruments. A traditional multi-port valve is replaced with a valveless sample introduction interface that offers the advantage of long-term reliability and stable sample transfer efficiency. An engineering design model is presented and tested that allows customizing this pressure-switching-based device for other applications. Flow model accuracy is within measurement accuracy (1%) when parameters are tuned for an ambient-pressure detector and 15% accurate when applied to a vacuum-based detector. Laboratory comparisons made between the two methods of sample introductionmore » using a thermal desorption aerosol gas chromatograph (TAG) show that the new interface has approximately 3 times greater reproducibility maintained over the equivalent of a week of continuous sampling. Field performance results for two versions of the valveless interface used in the in situ instrument demonstrate typically less than 2% week-1 response trending and a zero failure rate during field deployments ranging up to 4 weeks of continuous sampling. Extension of the valveless interface to dual collection cells is presented with less than 3% cell-to-cell carryover.« less

  17. Development of an automated high temperature valveless injection system for on-line gas chromatography

    DOE PAGES [OSTI]

    Kreisberg, N. M.; Worton, D. R.; Zhao, Y.; Isaacman, G.; Goldstein, A. H.; Hering, S. V.

    2014-07-23

    A reliable method of sample introduction is presented for on-line gas chromatography with a special application to in-situ field portable atmospheric sampling instruments. A traditional multi-port valve is replaced with a controlled pressure switching device that offers the advantage of long term reliability and stable sample transfer efficiency. An engineering design model is presented and tested that allows customizing the interface for other applications. Flow model accuracy is within measurement accuracy (1%) when parameters are tuned for an ambient detector and 15% accurate when applied to a vacuum based detector. Laboratory comparisons made between the two methods of sample introductionmore » using a thermal desorption aerosol gas chromatograph (TAG) show approximately three times greater reproducibility maintained over the equivalent of a week of continuous sampling. Field performance results for two versions of the valveless interface used in the in-situ instrument demonstrate minimal trending and a zero failure rate during field deployments ranging up to four weeks of continuous sampling. Extension of the VLI to dual collection cells is presented with less than 3% cell-to-cell carry-over.« less

  18. Tennessee Underground Natural Gas Storage - All Operators

    Annual Energy Outlook

    340 340 340 340 340 340 1997-2015 Base Gas 340 340 340 340 340 340 1997-2015 Working Gas 1997-2011 Net Withdrawals 1998-2006 Injections 1997-2005 Withdrawals 1997-2006 Change in...

  19. ,"Weekly East Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    East Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly East Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next Release

  20. ,"Weekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Lower 48 States Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next Release

  1. ,"Weekly Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Midwest Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next Release

  2. ,"Weekly Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Mountain Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next Release

  3. ,"Weekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Pacific Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next Release

  4. ,"Weekly South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016" ,"Next

  5. THERMO-HYDRO-MECHANICAL MODELING OF WORKING FLUID INJECTION AND THERMAL ENERGY EXTRACTION IN EGS FRACTURES AND ROCK MATRIX

    SciTech Connect

    Robert Podgorney; Chuan Lu; Hai Huang

    2012-01-01

    Development of enhanced geothermal systems (EGS) will require creation of a reservoir of sufficient volume to enable commercial-scale heat transfer from the reservoir rocks to the working fluid. A key assumption associated with reservoir creation/stimulation is that sufficient rock volumes can be hydraulically fractured via both tensile and shear failure, and more importantly by reactivation of naturally existing fractures (by shearing), to create the reservoir. The advancement of EGS greatly depends on our understanding of the dynamics of the intimately coupled rock-fracture-fluid-heat system and our ability to reliably predict how reservoirs behave under stimulation and production. Reliable performance predictions of EGS reservoirs require accurate and robust modeling for strongly coupled thermal-hydrological-mechanical (THM) processes. Conventionally, these types of problems have been solved using operator-splitting methods, usually by coupling a subsurface flow and heat transport simulators with a solid mechanics simulator via input files. An alternative approach is to solve the system of nonlinear partial differential equations that govern multiphase fluid flow, heat transport, and rock mechanics simultaneously, using a fully coupled, fully implicit solution procedure, in which all solution variables (pressure, enthalpy, and rock displacement fields) are solved simultaneously. This paper describes numerical simulations used to investigate the poro- and thermal- elastic effects of working fluid injection and thermal energy extraction on the properties of the fractures and rock matrix of a hypothetical EGS reservoir, using a novel simulation software FALCON (Podgorney et al., 2011), a finite element based simulator solving fully coupled multiphase fluid flow, heat transport, rock deformation, and fracturing using a global implicit approach. Investigations are also conducted on how these poro- and thermal-elastic effects are related to fracture permeability

  6. Coke oven gas treatment and by-product plant of Magnitogorsk Integrated Iron and Steel Works

    SciTech Connect

    Egorov, V.N.; Anikin, G.J.; Gross, M.

    1995-12-01

    Magnitogorsk Integrated Iron and Steel Works, Russia, decided to erect a new coke oven gas treatment and by-product plant to replace the existing obsolete units and to improve the environmental conditions of the area. The paper deals with the technological concept and the design requirements. Commissioning is scheduled at the beginning of 1996. The paper describes H{sub 2}S and NH{sub 3} removal, sulfur recovery and ammonia destruction, primary gas cooling and electrostatic tar precipitation, and the distributed control system that will be installed.

  7. EMC3-EIRENE modelling of toroidally-localized divertor gas injection experiments on Alcator C-Mod

    DOE PAGES [OSTI]

    Lore, Jeremy D.; Reinke, M. L.; LaBombard, Brian; Lipschultz, B.; Churchill, R. M.; Pitts, R. A.; Feng, Y.

    2014-09-30

    Experiments on Alcator C-Mod with toroidally and poloidally localized divertor nitrogen injection have been modeled using the three-dimensional edge transport code EMC3-EIRENE to elucidate the mechanisms driving measured toroidal asymmetries. In these experiments five toroidally distributed gas injectors in the private flux region were sequentially activated in separate discharges resulting in clear evidence of toroidal asymmetries in radiated power and nitrogen line emission as well as a ~50% toroidal modulation in electron pressure at the divertor target. The pressure modulation is qualitatively reproduced by the modelling, with the simulation yielding a toroidal asymmetry in the heat flow to the outermore » strike point. Finally, toroidal variation in impurity line emission is qualitatively matched in the scrape-off layer above the strike point, however kinetic corrections and cross-field drifts are likely required to quantitatively reproduce impurity behavior in the private flux region and electron temperatures and densities directly in front of the target.« less

  8. Simultaneous generation of quasi-monoenergetic electron and betatron X-rays from nitrogen gas via ionization injection

    SciTech Connect

    Huang, K.; Yan, W. C.; Li, M. H.; Tao, M. Z.; Ma, Y.; Zhao, J. R.; Chen, L. M.; Li, D. Z.; Chen, Z. Y.; Ge, X. L.; Liu, F.; Hafz, N. M.; Zhang, J.

    2014-11-17

    Upon the interaction of 60 TW Ti: sapphire laser pulses with 4 mm long supersonic nitrogen gas jet, a directional x-ray emission was generated along with the generation of stable quasi-monoenergetic electron beams having a peak energy of 130 MeV and a relative energy spread of ∼ 20%. The betatron x-ray emission had a small divergence of 7.5 mrad and a critical energy of 4 keV. The laser wakefield acceleration process was stimulated in a background plasma density of merely 5.4 × 10{sup 17 }cm{sup −3} utilizing ionization injection. The non-self-focusing and stable propagation of the laser pulse in the pure nitrogen gaseous plasma should be responsible for the simultaneous generation of the high-quality X-ray and electron beams. Those ultra-short and naturally-synchronized beams could be applicable to ultrafast pump-probe experiments.

  9. Method and apparatus for removing non-condensible gas from a working fluid in a binary power system

    DOEpatents

    Mohr, Charles M.; Mines, Gregory L.; Bloomfield, K. Kit

    2002-01-01

    Apparatus for removing non-condensible gas from a working fluid utilized in a thermodynamic system comprises a membrane having an upstream side operatively connected to the thermodynamic system so that the upstream side of the membrane receives a portion of the working fluid. The first membrane separates the non-condensible gas from the working fluid. A pump operatively associated with the membrane causes the portion of the working fluid to contact the membrane and to be returned to the thermodynamic system.

  10. U.S. Working Natural Gas Underground Storage Acquifers Capacity (Million

    Energy Information Administration (EIA) (indexed site)

    Cubic Feet) Acquifers Capacity (Million Cubic Feet) U.S. Working Natural Gas Underground Storage Acquifers Capacity (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 396,950 396,092 2010's 364,228 363,521 367,108 453,054 452,044 452,287 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Working

  11. Power plant including an exhaust gas recirculation system for injecting recirculated exhaust gases in the fuel and compressed air of a gas turbine engine

    DOEpatents

    Anand, Ashok Kumar; Nagarjuna Reddy, Thirumala Reddy; Shaffer, Jason Brian; York, William David

    2014-05-13

    A power plant is provided and includes a gas turbine engine having a combustor in which compressed gas and fuel are mixed and combusted, first and second supply lines respectively coupled to the combustor and respectively configured to supply the compressed gas and the fuel to the combustor and an exhaust gas recirculation (EGR) system to re-circulate exhaust gas produced by the gas turbine engine toward the combustor. The EGR system is coupled to the first and second supply lines and configured to combine first and second portions of the re-circulated exhaust gas with the compressed gas and the fuel at the first and second supply lines, respectively.

  12. Rich catalytic injection

    DOEpatents

    Veninger, Albert (Coventry, CT)

    2008-12-30

    A gas turbine engine includes a compressor, a rich catalytic injector, a combustor, and a turbine. The rich catalytic injector includes a rich catalytic device, a mixing zone, and an injection assembly. The injection assembly provides an interface between the mixing zone and the combustor. The injection assembly can inject diffusion fuel into the combustor, provides flame aerodynamic stabilization in the combustor, and may include an ignition device.

  13. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update

    economic incentive to inject natural gas into underground storage. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage totaled 1,943 Bcf as of...

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update

    working gas stocks are at their second-highest level for the report week in the 11-year history of the weekly natural gas storage database. The implied net injection during the...

  15. U.S. Working Natural Gas Underground Storage Depleted Fields Capacity

    Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Depleted Fields Capacity (Million Cubic Feet) U.S. Working Natural Gas Underground Storage Depleted Fields Capacity (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3,583,786 3,659,968 2010's 3,733,993 3,769,113 3,720,980 3,839,852 3,844,927 3,854,408 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date:

  16. U.S. Working Natural Gas Underground Storage Salt Caverns Capacity (Million

    Energy Information Administration (EIA) (indexed site)

    Cubic Feet) Salt Caverns Capacity (Million Cubic Feet) U.S. Working Natural Gas Underground Storage Salt Caverns Capacity (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 230,456 271,785 2010's 312,003 351,017 488,268 455,729 488,698 493,976 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages:

  17. ,"U.S. Working Natural Gas Total Underground Storage Capacity (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Total Underground Storage Capacity (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Working Natural Gas Total Underground Storage Capacity (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  18. ,"U.S. Working Natural Gas Underground Storage Acquifers Capacity (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Acquifers Capacity (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Working Natural Gas Underground Storage Acquifers Capacity (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  19. ,"U.S. Working Natural Gas Underground Storage Depleted Fields Capacity (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Depleted Fields Capacity (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Working Natural Gas Underground Storage Depleted Fields Capacity (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  20. ,"U.S. Working Natural Gas Underground Storage Salt Caverns Capacity (MMcf)"

    Energy Information Administration (EIA) (indexed site)

    Salt Caverns Capacity (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Working Natural Gas Underground Storage Salt Caverns Capacity (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  1. Modeling of fault activation and seismicity by injection directly into a fault zone associated with hydraulic fracturing of shale-gas reservoirs

    DOE PAGES [OSTI]

    Rutqvist, Jonny; Rinaldi, Antonio P.; Cappa, Frédéric; Moridis, George J.

    2015-03-01

    We conducted three-dimensional coupled fluid-flow and geomechanical modeling of fault activation and seismicity associated with hydraulic fracturing stimulation of a shale-gas reservoir. We simulated a case in which a horizontal injection well intersects a steeply dip- ping fault, with hydraulic fracturing channeled within the fault, during a 3-hour hydraulic fracturing stage. Consistent with field observations, the simulation results show that shale-gas hydraulic fracturing along faults does not likely induce seismic events that could be felt on the ground surface, but rather results in numerous small microseismic events, as well as aseismic deformations along with the fracture propagation. The calculated seismicmore » moment magnitudes ranged from about -2.0 to 0.5, except for one case assuming a very brittle fault with low residual shear strength, for which the magnitude was 2.3, an event that would likely go unnoticed or might be barely felt by humans at its epicenter. The calculated moment magnitudes showed a dependency on injection depth and fault dip. We attribute such dependency to variation in shear stress on the fault plane and associated variation in stress drop upon reactivation. Our simulations showed that at the end of the 3-hour injection, the rupture zone associated with tensile and shear failure extended to a maximum radius of about 200 m from the injection well. The results of this modeling study for steeply dipping faults at 1000 to 2500 m depth is in agreement with earlier studies and field observations showing that it is very unlikely that activation of a fault by shale-gas hydraulic fracturing at great depth (thousands of meters) could cause felt seismicity or create a new flow path (through fault rupture) that could reach shallow groundwater resources.« less

  2. Modeling of fault activation and seismicity by injection directly into a fault zone associated with hydraulic fracturing of shale-gas reservoirs

    SciTech Connect

    Rutqvist, Jonny; Rinaldi, Antonio P.; Cappa, Frédéric; Moridis, George J.

    2015-03-01

    We conducted three-dimensional coupled fluid-flow and geomechanical modeling of fault activation and seismicity associated with hydraulic fracturing stimulation of a shale-gas reservoir. We simulated a case in which a horizontal injection well intersects a steeply dip- ping fault, with hydraulic fracturing channeled within the fault, during a 3-hour hydraulic fracturing stage. Consistent with field observations, the simulation results show that shale-gas hydraulic fracturing along faults does not likely induce seismic events that could be felt on the ground surface, but rather results in numerous small microseismic events, as well as aseismic deformations along with the fracture propagation. The calculated seismic moment magnitudes ranged from about -2.0 to 0.5, except for one case assuming a very brittle fault with low residual shear strength, for which the magnitude was 2.3, an event that would likely go unnoticed or might be barely felt by humans at its epicenter. The calculated moment magnitudes showed a dependency on injection depth and fault dip. We attribute such dependency to variation in shear stress on the fault plane and associated variation in stress drop upon reactivation. Our simulations showed that at the end of the 3-hour injection, the rupture zone associated with tensile and shear failure extended to a maximum radius of about 200 m from the injection well. The results of this modeling study for steeply dipping faults at 1000 to 2500 m depth is in agreement with earlier studies and field observations showing that it is very unlikely that activation of a fault by shale-gas hydraulic fracturing at great depth (thousands of meters) could cause felt seismicity or create a new flow path (through fault rupture) that could reach shallow groundwater resources.

  3. Reductant injection and mixing system

    DOEpatents

    Reeves, Matt; Henry, Cary A.; Ruth, Michael J.

    2016-02-16

    A gaseous reductant injection and mixing system is described herein. The system includes an injector for injecting a gaseous reductant into an exhaust gas stream, and a mixer attached to a surface of the injector. The injector includes a plurality of apertures through which the gaseous reductant is injected into an exhaust gas stream. The mixer includes a plurality of fluid deflecting elements.

  4. Numerical simulation of steam injection processes with solvent

    SciTech Connect

    Zerpa, L.; Mendez, Z.

    1995-12-31

    In Venezuela during recent years, gas oil has been evaluated as an additive to increase steam injection process efficiency. The results of laboratory and field tests have shown a significant improvement in the production behavior. Despite these experiences, it is necessary to complement the information with results obtained from numerical simulation studies in order to know injection parameter effects, such as gas oil concentration, schemes and rates of injection, temperatures, etc., and also some mechanisms involved in the process. In this work, the results achieved in the numerical simulation of displacement tests with steam and gas oil are presented. A fully implicit 2-D thermal, three-phase compositional simulator was used to obtain all the data presented in this paper The numerical simulation results show a similar oil production performance to those obtained in the displacement tests with injection of gas oil and steam simultaneously. These results indicate rising of the production rate when the solvent concentration increases. They also reveal that the solvent co-injection scheme improves the productivity in relation to the gas oil pre-injection at low temperature. However, when gas oil is pre-injected at higher temperature, the oil production performance is similar to the co-injection scheme performance. This can attribute to the favorable temperature effect on the diffusion mechanisms. On the other hand, an increase of the gas oil injection rate causes a productivity reduction. In addition, the gas oil capacity to remove more viscous fractions than the original crude was verified. It was determined that the gas oil light fraction volatilization contributes to the process improvement. In general, these results confirm the benefit of using solvent and contribute to the understanding of process mechanisms.

  5. High productivity injection practices at Rouge Steel

    SciTech Connect

    Barker, D.H.; Hegler, G.L.; Falls, C.E.

    1995-12-01

    Rouge Steel Company, located in Dearborn, Michigan, operates two blast furnaces. The smaller of the pair, ``B`` Furnace, has a hearth diameter of 20 feet and 12 tuyeres. It has averaged 2,290 NTHM (net ton of hot metal) per day of 8.2 NTHM per 100 cubic feet of working volume. ``C`` Furnace has a hearth diameter of 29 feet and 20 tuyeres. Both of these furnaces are single tap hole furnaces. Prior to its reline in 1991, ``C`` Furnace was producing at a rate of 3,300 NTHM/day or about 6.25 NTHM/100 cfwv. In November, 1994 it averaged 5,106 NTHM/day or 9.6 NTHM/100 cfwv. This paper discusses how the current production rates were achieved. Also, the areas that needed to be addressed as production increased will be described. These areas include casthouse arrangement and workload, hot metal ladle capacity, slag pot capacity and charging capability. Coupled with the high blast temperature capability, the furnace was provided with a new natural gas injection system that injected the gas through the blowpipes and a natural gas injection system to enrich the stove gas. Following the furnace reline, natural gas has been used in three ways: tuyere level control; combination injection; and stove gas enrichment. Coke consumption rate has also decreased per NTHM.

  6. Blast furnace gas fired boiler for Eregli Iron and Steel Works (Erdemir), Turkey

    SciTech Connect

    Green, J.; Strickland, A.; Kimsesiz, E.; Temucin, I.

    1996-11-01

    Eregli Demir ve Celik Fabriklari T.A.S. (Eregli Iron and Steel Works Inc.), known as Erdemir, is a modern integrated iron and steel works on the Black Sea coast of Turkey, producing flat steel plate. Facilities include two blast furnaces, coke ovens, and hot and cold rolling mills, with a full supporting infrastructure. Four oil- and gas-fired steam boilers provide steam for electric power generation, and to drive steam turbine driven fans for Blast Furnace process air. Two of these boilers (Babcock and Wilcox Type FH) were first put into operation in 1965, and still reliably produce 100 tons/hour of steam at a pressure of 44 bar and a temperature of 410 C. In 1989 Erdemir initiated a Capacity Increase and Modernization Project to increase the steel production capability from two million to three million tons annually. This project also incorporates technology to improve the product quality. Its goals include a reduction in energy expenses to improve Erdemir`s competitiveness. The project`s scheduled completion is in late 1995. The by-product gases of the blast furnaces, coke ovens, and basic oxygen furnaces represent a considerable share of the consumed energy in an integrated iron and steel works. Efficient use of these fuels is an important factor in improving the overall efficiency of the operation.

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    natural gas demand, thereby contributing to larger net injections of natural gas into storage. Other Market Trends: EIA Releases The Natural Gas Annual 2006: The Energy...

  8. ,"Weekly Nonsalt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Nonsalt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Nonsalt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release

  9. ,"Weekly Salt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)"

    Energy Information Administration (EIA) (indexed site)

    Salt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Salt South Central Region Natural Gas Working Underground Storage (Billion Cubic Feet)",1,"Weekly","11/11/2016" ,"Release Date:","11/17/2016"

  10. Estimate of Maximum Underground Working Gas Storage Capacity in the United States: 2007 Update

    Reports and Publications

    2007-01-01

    This report provides an update to an estimate for U.S. aggregate natural gas storage capacity that was released in 2006.

  11. Measurement of runaway electron energy distribution function during high-Z gas injection into runaway electron plateaus in DIII-D

    SciTech Connect

    Hollmann, E. M.; Moyer, R. A.; Rudakov, D. L.; Parks, P. B.; Eidietis, N. W.; Paz-Soldan, C.; Commaux, N.; Shiraki, D.; Austin, M. E.; Lasnier, C. J.

    2015-05-15

    The evolution of the runaway electron (RE) energy distribution function f{sub ε} during massive gas injection into centered post-disruption runaway electron plateaus has been reconstructed. Overall, f{sub ε} is found to be much more skewed toward low energy than predicted by avalanche theory. The reconstructions also indicate that the RE pitch angle θ is not uniform, but tends to be large at low energies and small θ ∼ 0.1–0.2 at high energies. Overall power loss from the RE plateau appears to be dominated by collisions with background free and bound electrons, leading to line radiation. However, the drag on the plasma current appears to be dominated by collisions with impurity ions in most cases. Synchrotron emission appears not to be significant for overall RE energy dissipation but may be important for limiting the peak RE energy.

  12. Natural Gas Issues and Trends - Record winter withdrawals create summer

    Gasoline and Diesel Fuel Update

    storage challenges - Energy Information Administration Record winter withdrawals create summer storage challenges Released: June 12, 2014 On June 6, a net natural gas storage injection of 107 billion cubic feet (Bcf) brought natural gas working inventories in the contiguous United States to 1,606 Bcf. Strong injections over the past five weeks raised storage levels well above where they were on May 2, when a 74-Bcf injection ended seven consecutive weeks of storage levels that were less than

  13. Philadelphia gas works medium-Btu coal gasification project: capital and operating cost estimate, financial/legal analysis, project implementation

    SciTech Connect

    Not Available

    1981-12-01

    This volume of the final report is a compilation of the estimated capital and operating costs for the project. Using the definitive design as a basis, capital and operating costs were developed by obtaining quotations for equipment delivered to the site. Tables 1.1 and 1.2 provide a summary of the capital and operating costs estimated for the PGW Coal Gasification Project. In the course of its Phase I Feasibility Study of a medium-Btu coal-gas facility, Philadelphia Gas Works (PGW) identified the financing mechanism as having great impact on gas cost. Consequently, PGW formed a Financial/Legal Task Force composed of legal, financial, and project analysis specialists to study various ownership/management options. In seeking an acceptable ownership, management, and financing arrangement, certain ownership forms were initially identified and classified. Several public ownership, private ownership, and third party ownership options for the coal-gas plant are presented. The ownership and financing forms classified as base alternatives involved tax-exempt and taxable financing arrangements and are discussed in Section 3. Project implementation would be initiated by effectively planning the methodology by which commercial operation will be realized. Areas covered in this report are sale of gas to customers, arrangements for feedstock supply and by-product disposal, a schedule of major events leading to commercialization, and a plan for managing the implementation.

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook

    2.852 2.813 Holiday Closed January Delivery 2.996 3.041 2.991 Holiday Closed Source: Reuters Information Service Storage: Net injections into working gas storage were 15 billion...

  15. Estimate of Maximum Underground Working Gas Storage Capacity in the United States

    Reports and Publications

    2006-01-01

    This report examines the aggregate maximum capacity for U.S. natural gas storage. Although the concept of maximum capacity seems quite straightforward, there are numerous issues that preclude the determination of a definitive maximum volume. The report presents three alternative estimates for maximum capacity, indicating appropriate caveats for each.

  16. Missouri Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    Base Gas 7,845 7,845 7,845 7,845 7,845 7,845 1990-2016 Working Gas 6,341 6,537 6,493 6,045 6,198 6,063 1990-2016 Net Withdrawals -268 -212 28 433 -168 119 1990-2016 Injections 268 ...

  17. Arkansas Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    Base Gas 10,841 11,213 11,664 11,664 11,652 11,652 1990-2016 Working Gas 2,222 2,132 1,808 1,374 1,057 619 1990-2016 Net Withdrawals -212 -283 -127 434 328 438 1990-2016 Injections ...

  18. Fluidized bed injection assembly for coal gasification

    DOEpatents

    Cherish, Peter; Salvador, Louis A.

    1981-01-01

    A coaxial feed system for fluidized bed coal gasification processes including an inner tube for injecting particulate combustibles into a transport gas, an inner annulus about the inner tube for injecting an oxidizing gas, and an outer annulus about the inner annulus for transporting a fluidizing and cooling gas. The combustibles and oxidizing gas are discharged vertically upward directly into the combustion jet, and the fluidizing and cooling gas is discharged in a downward radial direction into the bed below the combustion jet.

  19. Control of SOx emission in tail gas of the Claus Plant at Kwangyang Steel Works

    SciTech Connect

    Kang, H.S.; Park, J.W.; Hyun, H.D.; Lee, D.S.; Paik, S.C.; Chung, J.S.

    1995-12-01

    Pilot and/or laboratory studies were conducted in order to find methods for reducing the SOx emission in the Claus tail gas of the cokes unit. The TGT process which is based on the complete hydrogenation of the sulfur-containing compounds (SO{sub 2}, S) into H{sub 2}S and returning to the COG main line can reduce the SOx emission to zero. In case the return to the COG main is impossible, the SPOR process (Sulfur removal based on Partial Oxidation and Reduction) can be successfully applied to reduce the SOx emission.

  20. Direct injection of natural gas in blast furnaces at high rates: Preliminary statistical analysis of blast furnace carbon balance at Armco-Middletown. Topical report, January 1990-September 1992

    SciTech Connect

    Neels, J.K.; Brown, F.C.

    1992-09-01

    The economic benefits of supplemental fuel injections depend, in part, on the coke replacement ratio. An assessment of the accuracy with which blast furnace coke rate may be measured and a determination of the key drivers of coke rate uncertainty are offered, to provide guidance for experiments in high-rate gas injection. Using statistical analysis tools, an expression for the measurement error associated with the various terms of blast furnace carbon balance is developed. Coke rate calculations based on the material balance are most sensitive to coke carbon content and to proper tracking of hot metal tapping schedule.

  1. Premixed direct injection disk

    DOEpatents

    York, William David; Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin; Zuo, Baifang; Uhm, Jong Ho

    2013-04-23

    A fuel/air mixing disk for use in a fuel/air mixing combustor assembly is provided. The disk includes a first face, a second face, and at least one fuel plenum disposed therebetween. A plurality of fuel/air mixing tubes extend through the pre-mixing disk, each mixing tube including an outer tube wall extending axially along a tube axis and in fluid communication with the at least one fuel plenum. At least a portion of the plurality of fuel/air mixing tubes further includes at least one fuel injection hole have a fuel injection hole diameter extending through said outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

  2. Single Well Injection Withdrawl Tracer Tests for Proppant Detection...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    large question preventing optimal natural gas production from "hydrofracked" shales is how far proppants, injected to keep shale fractures open, move into the gas-bearing shales. ...

  3. Allergy Injection Policy

    Energy.gov [DOE]

    Millions of Americans suffer from perennial and seasonal allergic rhinitis. Allergy immunotherapy is an effective way to reduce or eliminate the symptoms of allergic rhinitis by desensitizing the patient to the allergen(s) by giving escalating doses of an extract via regular injections. Receiving weekly injections at a private physician’s office is time consuming, reduces productivity, and can quickly deplete an employee’s earned leave. FOH offers the convenience of receiving allergy injections at the OHC as a physician-prescribed service, reducing time away from work for many federal employees.

  4. Gary No. 13 blast furnace achieves 400 lbs/THM coal injection in 9 months

    SciTech Connect

    Sherman, G.J.; Schuett, K.J.; White, D.G.; O`Donnell, E.M.

    1995-12-01

    Number 13 Blast Furnace at Gary began injecting Pulverized Coal in March 1993. The injection level was increased over the next nine months until a level off 409 lbs/THM was achieved for the month of December 1993. Several major areas were critical in achieving this high level of Pulverized coal injection (PCI) including furnace conditions, lance position, tuyere blockage, operating philosophy, and outages. The paper discusses the modifications made to achieve this level of injection. This injection level decreased charged dry coke rate from 750 lbs/THM to about 625 lbs/THM, while eliminating 150 lbs/THM of oil and 20 lbs/THM of natural gas. Assuming a 1.3 replacement ratio for an oil/natural gas mixture, overall coke replacement for the coal is about 0.87 lbs coke/lbs coal. Gary Works anticipates levels of 500 lbs/THM are conceivable.

  5. Total Working Gas Capacity

    Energy Information Administration (EIA) (indexed site)

    Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2010 2011 2012 2013 2014 2015 View History U.S. 4,410,224 4,483,650 4,576,356 4,748,636 4,785,669 4,800,671 2008-2015 Alaska 67,915 67,915 67,915 2013-2015 Alabama 25,150 27,350 27,350 27,350 33,150 33,150 2008-2015 Arkansas 13,898 12,036 12,178 12,178 12,178 12,178 2008-2015 California 311,096 335,396 349,296 374,296 374,296 375,496

  6. Low Cost Injection Mold Creation via Hybrid Additive and Conventional Manufacturing

    SciTech Connect

    Dehoff, Ryan R.; Watkins, Thomas R.; List, III, Frederick Alyious; Carver, Keith; England, Roger

    2015-12-01

    The purpose of the proposed project between Cummins and ORNL is to significantly reduce the cost of the tooling (machining and materials) required to create injection molds to make plastic components. Presently, the high cost of this tooling forces the design decision to make cast aluminum parts because Cummins typical production volumes are too low to allow injection molded plastic parts to be cost effective with the amortized cost of the injection molding tooling. In addition to reducing the weight of components, polymer injection molding allows the opportunity for the alternative cooling methods, via nitrogen gas. Nitrogen gas cooling offers an environmentally and economically attractive cooling option, if the mold can be manufactured economically. In this project, a current injection molding design was optimized for cooling using nitrogen gas. The various components of the injection mold tooling were fabricated using the Renishaw powder bed laser additive manufacturing technology. Subsequent machining was performed on the as deposited components to form a working assembly. The injection mold is scheduled to be tested in a projection setting at a commercial vendor selected by Cummins.

  7. Summary of the Optics, IR, Injection, Operations, Reliability...

    Office of Scientific and Technical Information (OSTI)

    Summary of the Optics, IR, Injection, Operations, Reliability and Instrumentation Working Group Citation Details In-Document Search Title: Summary of the Optics, IR, Injection, ...

  8. Performance, Efficiency and Emissions Assessment of Natural Gas Direct

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Injection compared to Gasoline and Natural Gas Port-Fuel Injection in an Automotive Engine | Argonne National Laboratory Performance, Efficiency and Emissions Assessment of Natural Gas Direct Injection compared to Gasoline and Natural Gas Port-Fuel Injection in an Automotive Engine Title Performance, Efficiency and Emissions Assessment of Natural Gas Direct Injection compared to Gasoline and Natural Gas Port-Fuel Injection in an Automotive Engine Publication Type Journal Article Year of

  9. Virginia Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    Working Gas 4,980 5,251 5,202 3,591 3,573 3,438 1997-2016 Net Withdrawals -545 -270 48 1,612 17 135 1995-2016 Injections 1,077 722 392 1,258 1,471 653 1997-2016 Withdrawals 533 451 ...

  10. Ohio Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    Working Gas 181,373 192,681 184,926 165,463 118,381 86,221 1990-2016 Net Withdrawals -22,886 -11,308 7,717 19,441 47,082 32,160 1990-2016 Injections 23,451 13,257 2,530 1,632 70 ...

  11. Oregon Underground Injection Control Program Authorized Injection...

    OpenEI (Open Energy Information) [EERE & EIA]

    search OpenEI Reference LibraryAdd to library Web Site: Oregon Underground Injection Control Program Authorized Injection Systems Webpage Author Oregon Department of...

  12. Verification of electrical spin injection into InGaAs two-dimensional electron gas from CoFe electrode by four-terminal non-local geometry

    SciTech Connect

    Hidaka, S.; Kondo, T.; Akabori, M.; Yamada, S.

    2013-12-04

    We performed electrical spin injection into In{sub 0.75}Ga{sub 0.25}As two-dimensional electron gases from Co{sub 0.8}Fe{sub 0.2} electrodes by four-terminal non-local spin-valve (NLSV) measurement. We observed clear SV signals in NL resistance at 1.5 K. From the electrode spacing dependence of the signals, we estimated spin diffusion length and spin polarization to be ?5.1 ?m and ?5.7 %, respectively. These are larger than those reported in similar systems.

  13. Low-pressure injection molding

    SciTech Connect

    Mangels, J.A. (Ceradyne Inc., Costa Mesa, CA (United States))

    1994-05-01

    Ceramic injection molding experienced a revival in the 1970s and 1980s with the application of ceramics for gas turbine components. Concurrently, techniques were being developed for the injection molding of powdered metal compositions into complex shaped articles. The impetus for the development of injection molding as a ceramic fabrication process lay in the potential to produce complex-shaped components to near-net shape. In the ceramic injection molding process, ceramic powders are processed to obtain the desired particle size, distribution and morphology and blended to obtain a homogeneous distribution. These powders are then mixed with the organic binders, generally in a heated, highshear mixer at temperatures above the melting point of the organic binders. The injection molding mix is pelletized, cooled and fed into an injection molding machine. The molding mix is reheated to a fluid state and injected under high pressure (7--70 MPa) into a die cavity. The molded part is removed from the tooling after the molding mix has solidified in the die. The organic binders are then removed from the component at temperatures up to 400 C, generally by some combination of wicking and thermal decomposition. Finally, the component is sintered to obtain its final ceramic properties, using conventional ceramic processes.

  14. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    next heating season. Net injections reported in today's release of EIA's Weekly Natural Gas Storage Report brought natural gas storage supplies to 2,163 Bcf as of Friday, June 1,...

  15. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    of natural gas into storage. However, shut-in natural gas production in the Gulf of Mexico reduced available current supplies, and so limited net injections during the report...

  16. Burden distribution control for maintaining the central gas flow at No. 1 blast furnace in Pohang Works

    SciTech Connect

    Jung, S.K.; Lee, Y.J.; Suh, Y.K.; Ahn, T.J.; Kim, S.M.

    1995-12-01

    The causes for temperature lowering at the upper shaft center in Pohang No. 1 blast furnace were investigated. The test operation with charging notch change in the actual blast furnace and with a 1/12 scale model to Pohang No. 1 blast furnace were carried out in order to improve central gas flow in the shaft. Finally, rebuilding of the lower bunker interior was performed using the results of model experiments. It was confirmed that the main reason for the gas temperature lowering at the upper shaft center was the smaller particle size at center than the wall according to the discharging characteristics of center feed bunker with stone box. The central gas flow could be secured through modifying the stone box in the bunker.

  17. Diesel engine emissions reduction by multiple injections having increasing pressure

    SciTech Connect

    Reitz, Rolf D.; Thiel, Matthew P.

    2003-01-01

    Multiple fuel charges are injected into a diesel engine combustion chamber during a combustion cycle, and each charge after the first has successively greater injection pressure (a higher injection rate) than the prior charge. This injection scheme results in reduced emissions, particularly particulate emissions, and can be implemented by modifying existing injection system hardware. Further enhancements in emissions reduction and engine performance can be obtained by using known measures in conjunction with the invention, such as Exhaust Gas Recirculation (EGR).

  18. Evaluations of Radionuclides of Uranium, Thorium, and Radium Associated with Produced Fluids, Precipitates, and Sludges from Oil, Gas, and Oilfield Brine Injection Wells in Mississippi

    SciTech Connect

    Ericksen, R.L.

    1999-10-28

    There is an unsurpassed lack of scientific data with respect to the concentrations and isotopic compositions of uranium, thorium, and radium in the produced formation fluids (brine), precipitates, and sludges generated with the operation of oil and gas wells in Mississippi. These radioactive elements when contained in the formation fluids have been given the term NORM, which is an acronym for naturally occurring radioactive materials. When they are technologically enhanced during oil and gas production activities resulting in the formation of scale (precipitates) and sludges they are termed TENORM (technologically enhanced naturally occurring radioactive materials). As used in this document, NORM and TENORM will be considered equivalent terms and the occurrence of NORM in the oilfield will be considered the result of production operations. As a result of the lack of data no scientifically sound theses may be developed concerning the presence of these radionuclides in the fluid brine, precipitate (scale), or sludge phases. Over the period of just one year, 1997 for example, Mississippi produced over 39,372,963,584 liters (10,402,368,186 gallons or 247,675,433 barrels) of formation water associated with hydrocarbon production from 41 counties across the state.

  19. Natural Gas Underground Storage Capacity (Summary)

    Energy Information Administration (EIA) (indexed site)

    Salt Caverns Storage Capacity Aquifers Storage Capacity Depleted Fields Storage Capacity Total Working Gas Capacity Working Gas Capacity of Salt Caverns Working Gas Capacity of ...

  20. IGNITION IMPROVEMENT OF LEAN NATURAL GAS MIXTURES

    SciTech Connect

    Jason M. Keith

    2005-02-01

    This report describes work performed during a thirty month project which involves the production of dimethyl ether (DME) on-site for use as an ignition-improving additive in a compression-ignition natural gas engine. A single cylinder spark ignition engine was converted to compression ignition operation. The engine was then fully instrumented with a cylinder pressure transducer, crank shaft position sensor, airflow meter, natural gas mass flow sensor, and an exhaust temperature sensor. Finally, the engine was interfaced with a control system for pilot injection of DME. The engine testing is currently in progress. In addition, a one-pass process to form DME from natural gas was simulated with chemical processing software. Natural gas is reformed to synthesis gas (a mixture of hydrogen and carbon monoxide), converted into methanol, and finally to DME in three steps. Of additional benefit to the internal combustion engine, the offgas from the pilot process can be mixed with the main natural gas charge and is expected to improve engine performance. Furthermore, a one-pass pilot facility was constructed to produce 3.7 liters/hour (0.98 gallons/hour) DME from methanol in order to characterize the effluent DME solution and determine suitability for engine use. Successful production of DME led to an economic estimate of completing a full natural gas-to-DME pilot process. Additional experimental work in constructing a synthesis gas to methanol reactor is in progress. The overall recommendation from this work is that natural gas to DME is not a suitable pathway to improved natural gas engine performance. The major reasons are difficulties in handling DME for pilot injection and the large capital costs associated with DME production from natural gas.

  1. The influence of working gas pressure on interlayer mixing in magnetron-deposited Mo/Si multilayers

    SciTech Connect

    Pershyn, Yuriy; Gullikson, Erik; Artyukov, Igor; Kondratenko, Valeriy; Sevryukova, Victoriya; Voronov, Dmitriy; Zubarev, Evgeniy; Vinogradov, Alexander

    2011-08-08

    Impact of Ar gas pressure (1-4 mTorr) on the growth of amorphous interlayers in Mo/Si multilayers deposited by magnetron sputtering was investigated by small-angle x-ray scattering ({lambda} = 0.154 nm) and methods of cross-sectional transmission electron microscopy. Some reduction of thickness of the amorphous inter-layers with Ar pressure increase was found, while composition of the layers was enriched with molybdenum. The interface modification resulted in raise of EUV reflectance of the Mo/Si multilayers.

  2. Radiation Safety Work Control Form

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Radiation Safety Work Control Form (see instructions on pg-3) Rev. May 2014 Area: Form #: Date: Preliminary Applicability Screen: (a) Will closing the beam line injection stoppers mitigate the radiological hazards introduced by the proposed work? Yes No (b) Can the closed state of the beam line injection stoppers be assured during the proposed work (ie., work does NOT involve injection stoppers or associated HPS)? Yes No If the answers to both questions are yes, the work can be performed safely

  3. EVALUATIONS OF RADIONUCLIDES OF URANIUM, THORIUM, AND RADIUM ASSOCIATED WITH PRODUCED FLUIDS, PRECIPITATES, AND SLUDGES FROM OIL, GAS, AND OILFIELD BRINE INJECTION WELLS IN MISSISSIPPI

    SciTech Connect

    Charles Swann; John Matthews; Rick Ericksen; Joel Kuszmaul

    2004-03-01

    Naturally occurring radioactive materials (NORM) are known to be produced as a byproduct of hydrocarbon production in Mississippi. The presence of NORM has resulted in financial losses to the industry and continues to be a liability as the NORM-enriched scales and scale encrusted equipment is typically stored rather than disposed of. Although the NORM problem is well known, there is little publically available data characterizing the hazard. This investigation has produced base line data to fill this informational gap. A total of 329 NORM-related samples were collected with 275 of these samples consisting of brine samples. The samples were derived from 37 oil and gas reservoirs from all major producing areas of the state. The analyses of these data indicate that two isotopes of radium ({sup 226}Ra and {sup 228}Ra) are the ultimate source of the radiation. The radium contained in these co-produced brines is low and so the radiation hazard posed by the brines is also low. Existing regulations dictate the manner in which these salt-enriched brines may be disposed of and proper implementation of the rules will also protect the environment from the brine radiation hazard. Geostatistical analyses of the brine components suggest relationships between the concentrations of {sup 226}Ra and {sup 228}Ra, between the Cl concentration and {sup 226}Ra content, and relationships exist between total dissolved solids, BaSO{sub 4} saturation and concentration of the Cl ion. Principal component analysis points to geological controls on brine chemistry, but the nature of the geologic controls could not be determined. The NORM-enriched barite (BaSO{sub 4}) scales are significantly more radioactive than the brines. Leaching studies suggest that the barite scales, which were thought to be nearly insoluble in the natural environment, can be acted on by soil microorganisms and the enclosed radium can become bioavailable. This result suggests that the landspreading means of scale disposal

  4. Industrial Gas Turbines

    Energy.gov [DOE]

    A gas turbine is a heat engine that uses high-temperature, high-pressure gas as the working fluid. Part of the heat supplied by the gas is converted directly into mechanical work. High-temperature,...

  5. Underwater robotic work systems for Russian arctic offshore oil/gas industry: Final report. Export trade information

    SciTech Connect

    1997-12-15

    The study was performed in association with Rosshelf, a shelf developing company located in Moscow. This volume involves developing an underwater robotic work system for oil exploration in Russia`s Arctic waters, Sea of Okhotsk and the Caspian Sea. The contents include: (1) Executive Summary; (2) Study Background; (3) Study Outline and Results; (4) Conclusions; (5) Separately Published Elements; (6) List of Subcontractors.

  6. Fluid-Bed Testing of Greatpoint Energy's Direct Oxygen Injection Catalytic Gasification Process for Synthetic Natural Gas and Hydrogen Coproduction Year 6 - Activity 1.14 - Development of a National Center for Hydrogen Technology

    SciTech Connect

    Swanson, Michael; Henderson, Ann

    2012-04-01

    near-zero hazardous air or water pollution. This technology would also be conducive to the efficient coproduction of methane and hydrogen while also generating a relatively pure CO{sub 2} stream suitable for enhanced oil recovery (EOR) or sequestration. Specific results of bench-scale testing in the 4- to 38-lb/hr range in the EERC pilot system demonstrated high methane yields approaching 15 mol%, with high hydrogen yields approaching 50%. This was compared to an existing catalytic gasification model developed by GPE for its process. Long-term operation was demonstrated on both Powder River Basin subbituminous coal and on petcoke feedstocks utilizing oxygen injection without creating significant bed agglomeration. Carbon conversion was greater than 80% while operating at temperatures less than 1400°F, even with the shorter-than-desired reactor height. Initial designs for the GPE gasification concept called for a height that could not be accommodated by the EERC pilot facility. More gas-phase residence time should allow the syngas to be converted even more to methane. Another goal of producing significant quantities of highly concentrated catalyzed char for catalyst recovery and material handling studies was also successful. A Pd–Cu membrane was also successfully tested and demonstrated to produce 2.54 lb/day of hydrogen permeate, exceeding the desired hydrogen permeate production rate of 2.0 lb/day while being tested on actual coal-derived syngas that had been cleaned with advanced warm-gas cleanup systems. The membranes did not appear to suffer any performance degradation after exposure to the cleaned, warm syngas over a nominal 100-hour test.

  7. Radial lean direct injection burner

    DOEpatents

    Khan, Abdul Rafey; Kraemer, Gilbert Otto; Stevenson, Christian Xavier

    2012-09-04

    A burner for use in a gas turbine engine includes a burner tube having an inlet end and an outlet end; a plurality of air passages extending axially in the burner tube configured to convey air flows from the inlet end to the outlet end; a plurality of fuel passages extending axially along the burner tube and spaced around the plurality of air passage configured to convey fuel from the inlet end to the outlet end; and a radial air swirler provided at the outlet end configured to direct the air flows radially toward the outlet end and impart swirl to the air flows. The radial air swirler includes a plurality of vanes to direct and swirl the air flows and an end plate. The end plate includes a plurality of fuel injection holes to inject the fuel radially into the swirling air flows. A method of mixing air and fuel in a burner of a gas turbine is also provided. The burner includes a burner tube including an inlet end, an outlet end, a plurality of axial air passages, and a plurality of axial fuel passages. The method includes introducing an air flow into the air passages at the inlet end; introducing a fuel into fuel passages; swirling the air flow at the outlet end; and radially injecting the fuel into the swirling air flow.

  8. Alkaline sorbent injection for mercury control

    DOEpatents

    Madden, Deborah A.; Holmes, Michael J.

    2002-01-01

    A mercury removal system for removing mercury from combustion flue gases is provided in which alkaline sorbents at generally extremely low stoichiometric molar ratios of alkaline earth or an alkali metal to sulfur of less than 1.0 are injected into a power plant system at one or more locations to remove at least between about 40% and 60% of the mercury content from combustion flue gases. Small amounts of alkaline sorbents are injected into the flue gas stream at a relatively low rate. A particulate filter is used to remove mercury-containing particles downstream of each injection point used in the power plant system.

  9. Alkaline sorbent injection for mercury control

    DOEpatents

    Madden, Deborah A.; Holmes, Michael J.

    2003-01-01

    A mercury removal system for removing mercury from combustion flue gases is provided in which alkaline sorbents at generally extremely low stoichiometric molar ratios of alkaline earth or an alkali metal to sulfur of less than 1.0 are injected into a power plant system at one or more locations to remove at least between about 40% and 60% of the mercury content from combustion flue gases. Small amounts of alkaline sorbents are injected into the flue gas stream at a relatively low rate. A particulate filter is used to remove mercury-containing particles downstream of each injection point used in the power plant system.

  10. Pennsylvania Natural Gas Injections into Underground Storage...

    Energy Information Administration (EIA) (indexed site)

    335,966 303,286 315,183 321,757 265,901 332,183 293,596 364,262 372,402 357,234 1980's 212,048 360,752 405,477 284,948 362,878 350,022 249,028 335,166 377,046 572,180 1990's ...

  11. Operational considerations for high level blast furnace fuel injection

    SciTech Connect

    Poveromo, J.J.

    1996-12-31

    Injection levels of over 400 lbs/NTHM for coal, over 250 lbs/NTHM for natural gas and over 200 lbs/NTHM for oil have been achieved. Such high levels of fuel injection has a major impact on many aspects of blast furnace operation. In this paper the author begins by reviewing the fundamentals of fuel injection with emphasis on raceway thermochemical phenomena. The operational impacts which are generic to high level injection of any injectant are then outlined. The author will then focus on the particular characteristics of each injectant, with major emphasis on coal and natural gas. Operational considerations for coping with these changes and methods of maximizing the benefits of fuel injection will be reviewed.

  12. Injection Laser System

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Injection Laser System For each of NIF's 192 beams: The pulse shape as a function of time ... NIF's injection laser system (ILS) plays a key role in meeting these three requirements. ...

  13. Underground natural gas storage reservoir management: Phase 2. Final report, June 1, 1995--March 30, 1996

    SciTech Connect

    Ortiz, I.; Anthony, R.V.

    1996-12-31

    Gas storage operators are facing increased and more complex responsibilities for managing storage operations under Order 636 which requires unbundling of storage from other pipeline services. Low cost methods that improve the accuracy of inventory verification are needed to optimally manage this stored natural gas. Migration of injected gas out of the storage reservoir has not been well documented by industry. The first portion of this study addressed the scope of unaccounted for gas which may have been due to migration. The volume range was estimated from available databases and reported on an aggregate basis. Information on working gas, base gas, operating capacity, injection and withdrawal volumes, current and non-current revenues, gas losses, storage field demographics and reservoir types is contained among the FERC Form 2, EIA Form 191, AGA and FERC Jurisdictional databases. The key elements of this study show that gas migration can result if reservoir limits have not been properly identified, gas migration can occur in formation with extremely low permeability (0.001 md), horizontal wellbores can reduce gas migration losses and over-pressuring (unintentionally) storage reservoirs by reinjecting working gas over a shorter time period may increase gas migration effects.

  14. Miniaturized flow injection analysis system

    DOEpatents

    Folta, James A.

    1997-01-01

    A chemical analysis technique known as flow injection analysis, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38.times.25.times.3 mm, but can be designed for gas analysis and be substantially smaller in construction.

  15. Miniaturized flow injection analysis system

    DOEpatents

    Folta, J.A.

    1997-07-01

    A chemical analysis technique known as flow injection analysis is described, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38{times}25{times}3 mm, but can be designed for gas analysis and be substantially smaller in construction. 9 figs.

  16. Pressurized feed-injection spray-forming apparatus

    DOEpatents

    Berry, Ray A. (Idaho Falls, ID); Fincke, James R. (Idaho Falls, ID); McHugh, Kevin M. (Idaho Falls, ID)

    1995-01-01

    A spray apparatus and method for injecting a heated, pressurized liquid in a first predetermined direction into a pressurized gas flow that is flowing in a second predetermined direction, to provide for atomizing and admixing the liquid with the gas to form a two-phase mixture. A valve is also disposed within the injected liquid conduit to provide for a pulsed injection of the liquid and timed deposit of the atomized gas phase. Preferred embodiments include multiple liquid feed ports and reservoirs to provide for multiphase mixtures of metals, ceramics, and polymers.

  17. Pressurized feed-injection spray-forming apparatus

    DOEpatents

    Berry, R.A.; Fincke, J.R.; McHugh, K.M.

    1995-08-29

    A spray apparatus and method are disclosed for injecting a heated, pressurized liquid in a first predetermined direction into a pressurized gas flow that is flowing in a second predetermined direction, to provide for atomizing and admixing the liquid with the gas to form a two-phase mixture. A valve is also disposed within the injected liquid conduit to provide for a pulsed injection of the liquid and timed deposit of the atomized gas phase. Preferred embodiments include multiple liquid feed ports and reservoirs to provide for multiphase mixtures of metals, ceramics, and polymers. 22 figs.

  18. Natural Gas Weekly Update

    Annual Energy Outlook

    levels and 25 percent below the 5-year average. Natural gas prices are likely to stay high as long as above-normal storage injection demand competes with industrial and...

  19. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    suppliers a strong economic incentive to inject gas into storage in preparation for heating demand next winter. The 12-month strip, or the average price for contracts over the...

  20. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    (April 11). The first weekly report of the traditional injection season brought natural gas volumes in underground storage to 1,592 Bcf as of Friday, April 6, which is 28.4...

  1. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    than normal during the report week, freeing some gas for injections into storage. Other Market Trends: New Incentives to Help Boost Production in the Gulf of Mexico: In its first...

  2. Target injection methods for inertial fusion energy

    SciTech Connect

    Petzoldt, R.W.; Moir, R.W.

    1994-06-01

    We have studied four methods to inject IFE targets: the gas gun, electrostatic accelerator, induction accelerator, and rail gun. We recommend a gas gun for indirect drive targets because they can support a gas pressure load on one end and can slide along the gun barrel without damage. With the gas gun, the amount of gas required for each target (about 10 to 100 mg) is acceptable; for other types of targets, a sabot would be necessary. A cam and poppet valve arrangement is recommended for gas flow control. An electrostatic accelerator is attractive for use with lightweight spherical direct drive targets. Since there is no physical contact between the target and the injector, there will be no wear of either component during the injection process. An induction accelerator has an advantage of no electrical contact between the target and the injector. Physical contact is not even necessary, so the wear should be minimal. It requires a cylindrical conductive target sleeve which is a substantial added mass. A rail gun is a simpler device than an electrostatic accelerator or induction accelerator. It requires electrical contact between the target and the rails and may have a significant wear rate. The wear in a vacuum could be reduced by use of a solid lubricant such as MoS{sub 2}. The total required accuracy of target injection, tracking and beam pointing of {plus_minus}0.4 mm appears achievable but will require development and experimental verification.

  3. Underground CO2 Storage, Natural Gas Recovery Targeted by Virginia...

    Energy.gov [DOE] (indexed site)

    of injecting captured carbon dioxide (CO2) into organic-rich rocks, deep underground, to permanently store the greenhouse gas while simultaneously recovering natural gas. ...

  4. Future of Natural Gas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Natural Gas Bill Eisele, CEM SC Electric & Gas Co Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral. Florida Agenda * Gas Facts * ...

  5. Working Gas Capacity of Aquifers

    Energy Information Administration (EIA) (indexed site)

    64,228 363,521 367,108 453,054 452,044 452,287 2008-2015 Alabama 0 0 0 2012-2015 Arkansas 0 0 0 2012-2015 California 0 10,000 10,000 10,000 2009-2015 Colorado 0 0 0 2012-2015 Illinois 216,132 215,017 215,594 291,544 292,544 291,845 2008-2015 Indiana 19,437 19,479 19,215 19,215 19,215 20,048 2008-2015 Iowa 90,613 91,113 90,313 90,313 90,313 90,313 2008-2015 Kansas 0 0 0 2012-2015 Kentucky 6,629 6,629 6,629 6,629 4,619 4,619 2008-2015 Louisiana 0 0 0 2012-2015 Michigan 0 0 0 2012-2015 Minnesota

  6. Liquid Propane Injection Applications

    Energy.gov [DOE]

    Liquid propane injection technology meets manufacturing/assembly guidelines, maintenance/repair strategy, and regulations, with same functionality, horsepower, and torque as gasoline counterpart.

  7. Activated Carbon Injection

    ScienceCinema

    None

    2014-07-22

    History of the Clean Air Act and how the injection of carbon into a coal power plant's flu smoke can reduce the amount of mercury in the smoke.

  8. Activated Carbon Injection

    SciTech Connect

    2014-07-16

    History of the Clean Air Act and how the injection of carbon into a coal power plant's flu smoke can reduce the amount of mercury in the smoke.

  9. Summary of the Optics, IR, Injection, Operations, Reliability...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Summary of the Optics, IR, Injection, Operations, Reliability and Instrumentation Working Group Citation Details In-Document Search Title: Summary of the Optics, ...

  10. Total Natural Gas Underground Storage Capacity

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Storage Capacity Salt Caverns Storage Capacity Aquifers Storage Capacity Depleted Fields Storage Capacity Total Working Gas Capacity Working Gas Capacity of Salt Caverns Working...

  11. A high sensitivity fiber optic macro-bend based gas flow rate transducer for low flow rates: Theory, working principle, and static calibration

    SciTech Connect

    Schena, Emiliano; Saccomandi, Paola; Silvestri, Sergio

    2013-02-15

    A novel fiber optic macro-bend based gas flowmeter for low flow rates is presented. Theoretical analysis of the sensor working principle, design, and static calibration were performed. The measuring system consists of: an optical fiber, a light emitting diode (LED), a Quadrant position sensitive Detector (QD), and an analog electronic circuit for signal processing. The fiber tip undergoes a deflection in the flow, acting like a cantilever. The consequent displacement of light spot center is monitored by the QD generating four unbalanced photocurrents which are function of fiber tip position. The analog electronic circuit processes the photocurrents providing voltage signal proportional to light spot position. A circular target was placed on the fiber in order to increase the sensing surface. Sensor, tested in the measurement range up to 10 l min{sup -1}, shows a discrimination threshold of 2 l min{sup -1}, extremely low fluid dynamic resistance (0.17 Pa min l{sup -1}), and high sensitivity, also at low flow rates (i.e., 33 mV min l{sup -1} up to 4 l min{sup -1} and 98 mV min l{sup -1} from 4 l min{sup -1} up to 10 l min{sup -1}). Experimental results agree with the theoretical predictions. The high sensitivity, along with the reduced dimension and negligible pressure drop, makes the proposed transducer suitable for medical applications in neonatal ventilation.

  12. Integrated vacuum absorption steam cycle gas separation

    SciTech Connect

    Chen, Shiaguo; Lu, Yonggi; Rostam-Abadi, Massoud

    2011-11-22

    Methods and systems for separating a targeted gas from a gas stream emitted from a power plant. The gas stream is brought into contact with an absorption solution to preferentially absorb the targeted gas to be separated from the gas stream so that an absorbed gas is present within the absorption solution. This provides a gas-rich solution, which is introduced into a stripper. Low pressure exhaust steam from a low pressure steam turbine of the power plant is injected into the stripper with the gas-rich solution. The absorbed gas from the gas-rich solution is stripped in the stripper using the injected low pressure steam to provide a gas stream containing the targeted gas. The stripper is at or near vacuum. Water vapor in a gas stream from the stripper is condensed in a condenser operating at a pressure lower than the stripper to concentrate the targeted gas. Condensed water is separated from the concentrated targeted gas.

  13. Fuel injection characteristics and combustion behavior of a direct-injection stratified-charge engine

    SciTech Connect

    Balles, E.N.; Ekchian, J.A.; Heywood, J.B.

    1984-01-01

    High levels of hydrocarbon emissions during light load operation keep the direct injection stratified charge engine from commercial application. Previous analytical work has identified several possible hydrocarbon emissions mechanisms which can result from poor in-cylinder fuel distribution. Poor fuel distribution can be caused by erratic fuel injection. Experiments conducted on a single cylinder disc engine show a dramatic increase in the cycle to cycle variation in injection characteristics as engine load decreases. This is accompanied by an increase in cycle to cycle variation in combustion behavior suggesting that degradation in combustion results from the degradation in the quality of the injection event. Examination of combustion and injection characteristics on a cycle by cycle basis shows that, at light load, IMEP and heat release do not correlate with the amount of fuel injected into the cylinder. There are strong indications that individual cycles undergo partial or complete misfire.

  14. Combustor assembly in a gas turbine engine

    DOEpatents

    Wiebe, David J; Fox, Timothy A

    2013-02-19

    A combustor assembly in a gas turbine engine. The combustor assembly includes a combustor device coupled to a main engine casing, a first fuel injection system, a transition duct, and an intermediate duct. The combustor device includes a flow sleeve for receiving pressurized air and a liner disposed radially inwardly from the flow sleeve. The first fuel injection system provides fuel that is ignited with the pressurized air creating first working gases. The intermediate duct is disposed between the liner and the transition duct and defines a path for the first working gases to flow from the liner to the transition duct. An intermediate duct inlet portion is associated with a liner outlet and allows movement between the intermediate duct and the liner. An intermediate duct outlet portion is associated with a transition duct inlet section and allows movement between the intermediate duct and the transition duct.

  15. Orthogonal ion injection apparatus and process

    DOEpatents

    Kurulugama, Ruwan T; Belov, Mikhail E

    2014-04-15

    An orthogonal ion injection apparatus and process are described in which ions are directly injected into an ion guide orthogonal to the ion guide axis through an inlet opening located on a side of the ion guide. The end of the heated capillary is placed inside the ion guide such that the ions are directly injected into DC and RF fields inside the ion guide, which efficiently confines ions inside the ion guide. Liquid droplets created by the ionization source that are carried through the capillary into the ion guide are removed from the ion guide by a strong directional gas flow through an inlet opening on the opposite side of the ion guide. Strong DC and RF fields divert ions into the ion guide. In-guide orthogonal injection yields a noise level that is a factor of 1.5 to 2 lower than conventional inline injection known in the art. Signal intensities for low m/z ions are greater compared to convention inline injection under the same processing conditions.

  16. Pacific Region Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History Natural Gas in Storage 525,124 546,324 565,012 575,121 575,495 573,856 2013-2016 Base Gas 259,331 259,331 259,331 259,331 259,331 259,331 2013-2016 Working Gas 265,792 286,993 305,681 315,789 316,164 314,524 2013-2016 Net Withdrawals -3,232 -21,206 -22,310 -10,112 -906 2,142 2013-2016 Injections 16,892 23,819 27,387 15,867 11,961 10,000 2013-2016 Withdrawals 13,660 2,613 5,078 5,755 11,056 12,142 2013-2016 Change in Working Gas from Same

  17. Tevatron injection timing

    SciTech Connect

    Saritepe, S.; Annala, G.

    1993-06-01

    Bunched beam transfer from one accelerator to another requires coordination and synchronization of many ramped devices. During collider operation timing issues are more complicated since one has to switch from proton injection devices to antiproton injection devices. Proton and antiproton transfers are clearly distinct sequences since protons and antiprotons circulate in opposite directions in the Main Ring (MR) and in the Tevatron. The time bumps are different, the kicker firing delays are different, the kickers and lambertson magnets are different, etc. Antiprotons are too precious to be used for tuning purposes, therefore protons are transferred from the Tevatron back into the Main Ring, tracing the path of antiprotons backwards. This tuning operation is called ``reverse injection.`` Previously, the reverse injection was handled in one supercycle. One batch of uncoalesced bunches was injected into the Tevatron and ejected after 40 seconds. Then the orbit closure was performed in the MR. In the new scheme the lambertson magnets have to be moved and separator polarities have to be switched, activities that cannot be completed in one supercycle. Therefore, the reverse injection sequence was changed. This involved the redefinition of TVBS clock event $D8 as MRBS $D8 thus making it possible to inject 6 proton batches (or coalesced bunches) and eject them one at a time on command, performing orbit closure each time in the MR. Injection devices are clock event driven. The TCLK is used as the reference clock. Certain TCLK events are triggered by the MR beam synchronized clock (MRBS) events. Some delays are measured in terms of MRBS ticks and MR revolutions. See Appendix A for a brief description of the beam synchronized clocks.

  18. High pressure injection of dimethyl ether

    SciTech Connect

    Glensvig, M.; Sorenson, S.C.; Abata, D.

    1996-12-31

    Partially oxygenated hydrocarbons produced from natural gas have been shown to be viable alternate fuels for the diesel engine, showing favorable combustion characteristics similar to that of diesel fuel but without exhaust particulates and with significantly reduced NO{sub x} emissions and lower engine noise. Further, engine studies have demonstrated that such compounds, like dimethyl ether (DME), can be injected at much lower pressures than conventional diesel fuel with better overall performance. This experimental study compares the injection of DME to that of conventional diesel fuel. Both fuels were injected into a quiescent high pressure chamber containing Nitrogen at pressures up to 25 atmospheres at room temperature with a pintle nozzle and jerk pump. Comparisons were obtained with high speed photography using a Hycam camera. Results indicate that there are significant differences in spray geometry and penetration which are not predictable with analytical models currently used for diesel fuels.

  19. Pilot plant testing of Illinois coal for blast furnace injection. Quarterly report, 1 December 1994--28 February 1995

    SciTech Connect

    Crelling, J.C.

    1995-12-31

    A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of Illinois coal in the blast furnace injection process in a new and unique pilot plant test facility. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This study is unique in that it is the first North American effort to directly determine the nature of the combustion of coal injected into a blast furnace. This proposal is a follow-up to one funded for the 1993--94 period. It is intended to complete the study already underway with the Armco and Inland steel companies and to demonstrate quantitatively the suitability of both the Herrin No. 6 and Springfield No. 5 coals for blast furnace injection. The main feature of the current work is the testing of Illinois coals at CANMET`s (Canadian Centre for Mineral and Energy Technology) pilot plant coal combustion facility. This facility simulates blowpipe-tuyere conditions in an operating blast furnace, including blast temperature (900{degrees}C), flow pattern (hot velocity 200 m/s), geometry, gas composition, coal injection velocity (34 m/s) and residence time (20 ms). The facility is fully instrumented to measure air flow rate, air temperature, temperature in the reactor, wall temperature, preheater coil temperature and flue gas analysis. During this quarter there were two major accomplishments.

  20. Transonic Combustion ’ - Injection Strategy Development for...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Transonic Combustion - Injection Strategy Development for Supercritical Gasoline Injection-Ignition in a Light Duty Engine Transonic Combustion - Injection Strategy ...

  1. Spark gap switch with spiral gas flow

    DOEpatents

    Brucker, John P.

    1989-01-01

    A spark gap switch having a contaminate removal system using an injected gas. An annular plate concentric with an electrode of the switch defines flow paths for the injected gas which form a strong spiral flow of the gas in the housing which is effective to remove contaminates from the switch surfaces. The gas along with the contaminates is exhausted from the housing through one of the ends of the switch.

  2. Water spray ejector system for steam injected engine

    SciTech Connect

    Hines, W.R.

    1991-10-08

    This paper describes a method of increasing the power output of a steam injected gas turbine engine. It comprises: a compressor, a combustor having a dome which receives fuel and steam from a dual flow nozzle, and a turbine in series combination with a gas flow path passing therethrough, and a system for injection of superheated steam into the gas flow path, the method comprising spraying water into the steam injection system where the water is evaporated by the superheated steam, mixing the evaporated water with the existing steam in the steam injection system so that the resultant steam is at a temperature of at least 28 degrees celsius (50 degrees fahrenheit) superheat and additional steam is added to the dome from the fuel nozzle to obtain a resultant increased mass flow of superheated steam mixture for injection into the gas flow path, and controlling the amount of water sprayed into the steam injection system to maximize the mass flow of superheated steam without quenching the flame.

  3. Natural Gas Transmission and Distribution Module

    Energy Information Administration (EIA) (indexed site)

    July 31, 2012, Washington, DC Major assumption changes for AEO2013 Oil and Gas Working Group Natural Gas Transmission and Distribution Module DRAFT WORKING GROUP PRESENTATION DO ...

  4. Fuel injection apparatus

    SciTech Connect

    Suzuki, Y.; Kuroda, Y.; Ogata, K.

    1988-07-12

    A fuel injection apparatus is described for injecting fuel responsive to a rotary speed of an engine by utilizing the pressure of compressed air, the apparatus comprising means for regulating the supplying time of the compressed air responsive to at least one of the rotary speed of the engine and the load of the engine, and the regulating means including means for supplying the compressed air for a longer time at least one of low rotary speed and low load of the engine than at least one of high rotary speed and high load of the engine.

  5. Flue gas desulfurization

    DOEpatents

    Im, K.H.; Ahluwalia, R.K.

    1984-05-01

    The invention involves a combustion process in which combustion gas containing sulfur oxide is directed past a series of heat exchangers to a stack and in which a sodium compound is added to the combustion gas in a temparature zone of above about 1400 K to form Na/sub 2/SO/sub 4/. Preferably, the temperature is above about 1800 K and the sodium compound is present as a vapor to provide a gas-gas reaction to form Na/sub 2/SO/sub 4/ as a liquid. Since liquid Na/sub 2/SO/sub 4/ may cause fouling of heat exchanger surfaces downstream from the combustion zone, the process advantageously includes the step of injecting a cooling gas downstream of the injection of the sodium compound yet upstream of one or more heat exchangers to cool the combustion gas to below about 1150 K and form solid Na/sub 2/SO/sub 4/. The cooling gas is preferably a portion of the combustion gas downstream which may be recycled for cooling. It is further advantageous to utilize an electrostatic precipitator downstream of the heat exchangers to recover the Na/sub 2/SO/sub 4/. It is also advantageous in the process to remove a portion of the combustion gas cleaned in the electrostatic precipitator and recycle that portion upstream to use as the cooling gas. 3 figures.

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    Btu per cubic foot as published in Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage...

  7. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Btu per cubic foot as published in Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    Btu per cubic foot as published in Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage...

  9. Natural Gas Weekly Update

    Annual Energy Outlook

    gas in storage, as well as decreases in the price of crude oil. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,905 Bcf as of...

  10. Natural Gas Weekly Update

    Annual Energy Outlook

    Btu per cubic foot as published in Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in...

  11. Natural Gas Weekly Update

    Annual Energy Outlook

    of natural gas into storage, despite robust inventories. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 3,258 Bcf as of...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    to withdraw natural gas from storage to meet current demand. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage decreased to 2,406 Bcf as of...

  13. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Btu per cubic foot as published in Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas inventories...

  14. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Working gas in storage was 3,121 Bcf as of Friday, Oct 24, 2003, according to the Energy Information Administration (EIA) Weekly Natural Gas Storage Report. This is 2.7...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage was 2,414 Bcf as of Friday, January 9,...

  16. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage was 821 Bcf as of May 2, according to...

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage as of September 2 totaled 2,669 Bcf,...

  18. Natural Gas Weekly Update

    Annual Energy Outlook

    withdrawal from working gas storage reported last Thursday. A contributing factor to the run-up in natural gas prices could be climbing crude oil prices, which rallied late last...

  19. Flue gas desulfurization

    DOEpatents

    Im, Kwan H.; Ahluwalia, Rajesh K.

    1985-01-01

    A process and apparatus for removing sulfur oxide from combustion gas to form Na.sub.2 SO.sub.4 and for reducing the harmful effects of Na.sub.2 SO.sub.4 on auxiliary heat exchangers in which a sodium compound is injected into the hot combustion gas forming liquid Na.sub.2 SO.sub.4 in a gas-gas reaction and the resultant gas containing Na.sub.2 SO.sub.4 is cooled to below about 1150.degree. K. to form particles of Na.sub.2 SO.sub.4 prior to contact with at least one heat exchanger with the cooling being provided by the recycling of combustion gas from a cooled zone downstream from the introduction of the cooling gas.

  20. Modeling Leaking Gas Plume Migration

    SciTech Connect

    Silin, Dmitriy; Patzek, Tad; Benson, Sally M.

    2007-08-20

    In this study, we obtain simple estimates of 1-D plume propagation velocity taking into account the density and viscosity contrast between CO{sub 2} and brine. Application of the Buckley-Leverett model to describe buoyancy-driven countercurrent flow of two immiscible phases leads to a transparent theory predicting the evolution of the plume. We obtain that the plume does not migrate upward like a gas bubble in bulk water. Rather, it stretches upward until it reaches a seal or until the fluids become immobile. A simple formula requiring no complex numerical calculations describes the velocity of plume propagation. This solution is a simplification of a more comprehensive theory of countercurrent plume migration that does not lend itself to a simple analytical solution (Silin et al., 2006). The range of applicability of the simplified solution is assessed and provided. This work is motivated by the growing interest in injecting carbon dioxide into deep geological formations as a means of avoiding its atmospheric emissions and consequent global warming. One of the potential problems associated with the geologic method of sequestration is leakage of CO{sub 2} from the underground storage reservoir into sources of drinking water. Ideally, the injected green-house gases will stay in the injection zone for a geologically long time and eventually will dissolve in the formation brine and remain trapped by mineralization. However, naturally present or inadvertently created conduits in the cap rock may result in a gas leak from primary storage. Even in supercritical state, the carbon dioxide viscosity and density are lower than those of the indigenous formation brine. Therefore, buoyancy will tend to drive the CO{sub 2} upward unless it is trapped beneath a low permeability seal. Theoretical and experimental studies of buoyancy-driven supercritical CO{sub 2} flow, including estimation of time scales associated with plume evolution, are critical for developing technology

  1. Mountain Region Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    570,852 578,589 603,180 623,304 635,601 646,974 2013-2016 Base Gas 426,050 426,104 426,133 426,165 426,157 426,145 2013-2016 Working Gas 144,803 152,484 177,047 197,139 209,444 220,828 2013-2016 Net Withdrawals -910 -7,610 -24,696 -20,024 -12,418 -11,103 2013-2016 Injections 16,189 15,107 27,298 22,765 17,788 18,160 2013-2016 Withdrawals 15,279 7,497 2,602 2,741 5,370 7,057 2013-2016 Change in Working Gas from Same Period Previous Year Volume 31,462 36,352 41,855 42,528 37,629 33,712 2013-2016

  2. AGA Eastern Consuming Region Underground Natural Gas Storage - All

    Energy Information Administration (EIA) (indexed site)

    Operators 3,841,204 4,114,591 4,380,162 4,576,950 4,440,427 4,232,406 1994-2014 Base Gas 2,627,055 2,627,251 2,627,453 2,625,581 2,625,620 2,625,561 1994-2014 Working Gas 1,214,149 1,487,341 1,752,710 1,951,369 1,814,807 1,606,846 1994-2014 Net Withdrawals -261,830 -273,214 -265,508 -197,968 136,650 208,273 1994-2014 Injections 278,671 286,487 273,495 214,392 69,117 42,438 1994-2014 Withdrawals 16,841 13,273 7,987 16,424 205,766 250,711 1994-2014 Change in Working Gas from Same Period

  3. East Region Underground Natural Gas Storage - All Operators

    Energy Information Administration (EIA) (indexed site)

    1,548,115 1,573,767 1,667,782 1,766,857 1,847,563 1,917,286 2013-2016 Base Gas 1,111,752 1,111,114 1,111,399 1,112,116 1,112,301 1,112,465 2013-2016 Working Gas 436,363 462,653 556,383 654,741 735,262 804,821 2013-2016 Net Withdrawals 53,638 -26,243 -93,997 -99,152 -80,674 -69,715 2013-2016 Injections 35,986 68,951 108,757 110,810 100,101 90,867 2013-2016 Withdrawals 89,624 42,709 14,761 11,657 19,426 21,151 2013-2016 Change in Working Gas from Same Period Previous Year Volume 197,072 153,989

  4. Gas hydrates

    SciTech Connect

    Not Available

    1985-04-01

    There is a definite need for the US government to provide leadership for research in gas hydrates and to coordinate its activities with academia, industry, private groups, federal agencies, and their foreign counterparts. In response to this need, the DOE Morgantown Energy Technology Center implemented a gas hydrates R and D program. Understanding the resource will be achieved through: assessment of current technology; characterization of gas hydrate geology and reservoir engineering; and development of diagnostic tools and methods. Research to date has focused on geology. As work progressed, areas where gas hydrates are likely to occur were identified, and specific high potential areas were targeted for future detailed investigation. Initial research activities involved the development of the Geologic Analysis System (GAS); which will provide, through approximately 30 software packages, the capability to manipulate and correlate several types of geologic and petroleum data into maps, graphics, and reports. Preliminary mapping of hydrate prospects for the Alaskan North Slope is underway. Geological research includes physical system characterization which focuses on creating synthetic methane hydrates and developing synthetic hydrate cores using tetrahydrofuran, consolidated rock cores, frost base mixtures, water/ice base mixtures, and water base mixtures. Laboratory work produced measurements of the sonic velocity and electrical resistivity of these synthetic hydrates. During 1983, a sample from a natural hydrate core recovered from the Pacific coast of Guatemala was tested for these properties by METC. More recently, a natural hydrate sample from the Gulf of Mexico was also acquired and testing of this sample is currently underway. In addition to the development of GAS, modeling and systems analysis work focused on the development of conceptual gas hydrate production models. 16 figs., 6 tabs.

  5. Pilot plant testing of Illinois coal for blast furnace injection. Technical report, September 1--November 30, 1994

    SciTech Connect

    Crelling, J.C.

    1994-12-31

    The purpose of this study is to evaluate the combustion of Illinois coal in the blast furnace injection process in a new and unique pilot plant test facility. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This study is unique in that it is the first North American effort to directly determine the nature of the combustion of coal injected into a blast furnace. It is intended to complete the study already underway with the Armco and Inland steel companies and to demonstrate quantitatively the suitability of both the Herrin No. 6 and Springfield No. 5 coals for blast furnace injection. The main feature of the current work is the testing of Illinois coals at CANMET`s (Canadian Centre for Mineral and Energy Technology) pilot plant coal combustion facility. This facility simulates blowpipe-tuyere conditions in an operating blast furnace, including blast temperature (900 C), flow pattern (hot velocity 200 m/s), geometry, gas composition, coal injection velocity (34 m/s) and residence time (20 ms). The facility is fully instrumented to measure air flow rate, air temperature, temperature in the reactor, wall temperature, preheater coil temperature and flue gas analysis. During this quarter a sample of the Herrin No. 6 coal (IBCSP 112) was delivered to the CANMET facility and testing is scheduled for the week of 11 December 1994. Also at this time, all of the IBCSP samples are being evaluated for blast furnace injection using the CANMET computer model.

  6. Injection-controlled laser resonator

    DOEpatents

    Chang, J.J.

    1995-07-18

    A new injection-controlled laser resonator incorporates self-filtering and self-imaging characteristics with an efficient injection scheme. A low-divergence laser signal is injected into the resonator, which enables the injection signal to be converted to the desired resonator modes before the main laser pulse starts. This injection technique and resonator design enable the laser cavity to improve the quality of the injection signal through self-filtering before the main laser pulse starts. The self-imaging property of the present resonator reduces the cavity induced diffraction effects and, in turn, improves the laser beam quality. 5 figs.

  7. Injection-controlled laser resonator

    DOEpatents

    Chang, Jim J.

    1995-07-18

    A new injection-controlled laser resonator incorporates self-filtering and self-imaging characteristics with an efficient injection scheme. A low-divergence laser signal is injected into the resonator, which enables the injection signal to be converted to the desired resonator modes before the main laser pulse starts. This injection technique and resonator design enable the laser cavity to improve the quality of the injection signal through self-filtering before the main laser pulse starts. The self-imaging property of the present resonator reduces the cavity induced diffraction effects and, in turn, improves the laser beam quality.

  8. Stokes injected Raman capillary waveguide amplifier

    DOEpatents

    Kurnit, Norman A.

    1980-01-01

    A device for producing stimulated Raman scattering of CO.sub.2 laser radiation by rotational states in a diatomic molecular gas utilizing a Stokes injection signal. The system utilizes a cryogenically cooled waveguide for extending focal interaction length. The waveguide, in conjunction with the Stokes injection signal, reduces required power density of the CO.sub.2 radiation below the breakdown threshold for the diatomic molecular gas. A Fresnel rhomb is employed to circularly polarize the Stokes injection signal and CO.sub.2 laser radiation in opposite circular directions. The device can be employed either as a regenerative oscillator utilizing optical cavity mirrors or as a single pass amplifier. Additionally, a plurality of Raman gain cells can be staged to increase output power magnitude. Also, in the regenerative oscillator embodiment, the Raman gain cell cavity length and CO.sub.2 cavity length can be matched to provide synchronism between mode locked CO.sub.2 pulses and pulses produced within the Raman gain cell.

  9. Natural Gas Weekly Update

    Annual Energy Outlook

    on December 9, falling from somewhat higher intraweek levels. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage dropped 64 Bcf during the...

  10. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    and October 2010 contracts all fell by less than 1 cent. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas inventories set a new record,...

  11. Breathable gas distribution apparatus

    DOEpatents

    Garcia, E.D.

    The disclosure is directed to an apparatus for safely supplying breathable gas or air through individual respirators to personnel working in a contaminated area.

  12. Reversible Acid Gas Capture

    ScienceCinema

    Dave Heldebrant

    2012-12-31

    Pacific Northwest National Laboratory scientist David Heldebrant demonstrates how a new process called reversible acid gas capture works to pull carbon dioxide out of power plant emissions.

  13. Breathable gas distribution apparatus

    DOEpatents

    Garcia, Elmer D.

    1985-01-01

    The disclosure is directed to an apparatus for safely supplying breathable gas or air through individual respirators to personnel working in a contaminated area.

  14. Electrically Injected UV-Visible Nanowire Lasers

    SciTech Connect

    Wang, George T.; Li, Changyi; Li, Qiming; Liu, Sheng; Wright, Jeremy Benjamin; Brener, Igal; Luk, Ting -Shan; Chow, Weng W.; Leung, Benjamin; Figiel, Jeffrey J.; Koleske, Daniel D.; Lu, Tzu-Ming

    2015-09-01

    There is strong interest in minimizing the volume of lasers to enable ultracompact, low-power, coherent light sources. Nanowires represent an ideal candidate for such nanolasers as stand-alone optical cavities and gain media, and optically pumped nanowire lasing has been demonstrated in several semiconductor systems. Electrically injected nanowire lasers are needed to realize actual working devices but have been elusive due to limitations of current methods to address the requirement for nanowire device heterostructures with high material quality, controlled doping and geometry, low optical loss, and efficient carrier injection. In this project we proposed to demonstrate electrically injected single nanowire lasers emitting in the important UV to visible wavelengths. Our approach to simultaneously address these challenges is based on high quality III-nitride nanowire device heterostructures with precisely controlled geometries and strong gain and mode confinement to minimize lasing thresholds, enabled by a unique top-down nanowire fabrication technique.

  15. Waterflooding injectate design systems and methods (Patent) ...

    Office of Scientific and Technical Information (OSTI)

    Waterflooding injectate design systems and methods Citation Details In-Document Search Title: Waterflooding injectate design systems and methods A method of designing an injectate...

  16. Category:Injectivity Test | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Injectivity Test Jump to: navigation, search Geothermalpower.jpg Looking for the Injectivity Test page? For detailed information on Injectivity Test, click here....

  17. An experimental study of fuel injection strategies in CAI gasoline engine

    SciTech Connect

    Hunicz, J.; Kordos, P.

    2011-01-15

    Combustion of gasoline in a direct injection controlled auto-ignition (CAI) single-cylinder research engine was studied. CAI operation was achieved with the use of the negative valve overlap (NVO) technique and internal exhaust gas re-circulation (EGR). Experiments were performed at single injection and split injection, where some amount of fuel was injected close to top dead centre (TDC) during NVO interval, and the second injection was applied with variable timing. Additionally, combustion at variable fuel-rail pressure was examined. Investigation showed that at fuel injection into recompressed exhaust fuel reforming took place. This process was identified via an analysis of the exhaust-fuel mixture composition after NVO interval. It was found that at single fuel injection in NVO phase, its advance determined the heat release rate and auto-ignition timing, and had a strong influence on NO{sub X} emission. However, a delay of single injection to intake stroke resulted in deterioration of cycle-to-cycle variability. Application of split injection showed benefits of this strategy versus single injection. Examinations of different fuel mass split ratios and variable second injection timing resulted in further optimisation of mixture formation. At equal share of the fuel mass injected in the first injection during NVO and in the second injection at the beginning of compression, the lowest emission level and cyclic variability improvement were observed. (author)

  18. REGULATORY COOPERATION COUNCIL - WORK PLANNING FORMAT: Natural...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    COUNCIL - WORK PLANNING FORMAT: Natural Gas Use in Transportation PDF icon RCC Workplan NGV.PDF More Documents & Publications REGULATORY COOPERATION COUNCIL - WORK PLANNING ...

  19. DeNOx characteristics using two staged radical injection techniques

    SciTech Connect

    Kambara, S.; Kumano, Y.; Yukimura, K.

    2009-06-15

    Ammonia radical injection using pulsed dielectric barrier discharge (DBD) plasma has been investigated as a means to control NOx emissions from combustors. When DBD plasma-generated radicals (NH{sub 2}, NH, N, and H) are injected into a flue gas containing nitrogen oxide (NOx), NOx is removed efficiently by chain reactions in the gas phase. However, because the percentage of NOx removal gradually decreases with increasing oxygen concentrations beyond 1% O{sub 2}, improvement of the DeNOx (removal of nitrogen oxide) characteristics at high O{sub 2} concentrations was necessary for commercial combustors. A two-staged injection of the DeNOx agent was developed based on the detailed mechanisms of electron impact reactions and gas phase reactions. A concentration of H radical was observed to play an important role in NOx formation and removal. The effects of applied voltages, oxygen concentrations, and reaction temperatures on NOx removal were investigated under normal and staged injection. NOx removal was improved by approximately 20% using staged injection at O{sub 2} concentrations of 1 to 4%.

  20. Natural gas applications in waste management

    SciTech Connect

    Tarman, P.B.

    1991-01-01

    The Institute of Gas Technology (IGT) is engaged in several projects related to the use of natural gas for waste management. These projects can be classified into four categories: cyclonic incineration of gaseous, liquid, and solid wastes; fluidized-bed reclamation of solid wastes; two-stage incineration of liquid and solid wastes; natural gas injection for emissions control. 5 refs., 8 figs.

  1. Final Techical Report - "Determining How Magnetic Helicity Injection Really Works"

    SciTech Connect

    Paul M. Bellan

    2005-02-15

    This research program involved direct observation of the complicated plasma dynamics underlying spheromak formation. Spheromaks are self-organizing magnetically dominated plasma configurations which potentially offer a simple, low-cost means for confining the plasma in a controlled thermonuclear fusion reactor. The spheromak source used in these studies was a coaxial co-planar magnetized plasma gun which was specifically designed to have the simplest relevant geometry. The simplicity of the geometry facilitated understanding of the basic physics and minimized confusion that would otherwise have resulted from complexities due to the experimental geometry. The coaxial plasma gun was mounted on one end of a large vacuum tank that had excellent optical access so the spheromak formation process could be tracked in detail using ultra-high speed cameras. The main accomplishments of this research program were (1) obtaining experimental data characterizing the detailed physics underlying spheromak formation and the development of new theoretical models motivated by these observations, (2) determining the relationship between spheromak physics and astrophysical jets, (3) developing a new high-speed camera diagnostic for the SSPX spheromak at the Lawrence Livermore National Lab, and (4) training graduate students and postdoctoral fellows.

  2. One-Dimensional SO2 Predictions for Duct Injection

    Energy Science and Technology Software Center

    1993-10-05

    DIAN1D is a one-dimensional model that predicts SO2 absorption by slurry droplets injected into a flue gas stream with two-fluid atomizers. DIANUI is an interactive user interface for DIAN1D. It prepares the input file for DIAN1D from plant design specifications and process requirements.

  3. NOx reduction by electron beam-produced nitrogen atom injection

    DOEpatents

    Penetrante, Bernardino M.

    2002-01-01

    Deactivated atomic nitrogen generated by an electron beam from a gas stream containing more than 99% N.sub.2 is injected at low temperatures into an engine exhaust to reduce NOx emissions. High NOx reduction efficiency is achieved with compact electron beam devices without use of a catalyst.

  4. Premixed direct injection nozzle

    DOEpatents

    Zuo, Baifang; Johnson, Thomas Edward; Lacy, Benjamin Paul; Ziminsky, Willy Steve

    2011-02-15

    An injection nozzle having a main body portion with an outer peripheral wall is disclosed. The nozzle includes a plurality of fuel/air mixing tubes disposed within the main body portion and a fuel flow passage fluidly connected to the plurality of fuel/air mixing tubes. Fuel and air are partially premixed inside the plurality of the tubes. A second body portion, having an outer peripheral wall extending between a first end and an opposite second end, is connected to the main body portion. The partially premixed fuel and air mixture from the first body portion gets further mixed inside the second body portion. The second body portion converges from the first end toward said second end. The second body portion also includes cooling passages that extend along all the walls around the second body to provide thermal damage resistance for occasional flame flash back into the second body.

  5. Particle beam injection system

    DOEpatents

    Jassby, Daniel L.; Kulsrud, Russell M.

    1977-01-01

    This invention provides a poloidal divertor for stacking counterstreaming ion beams to provide high intensity colliding beams. To this end, method and apparatus are provided that inject high energy, high velocity, ordered, atomic deuterium and tritium beams into a lower energy, toroidal, thermal equilibrium, neutral, target plasma column that is magnetically confined along an endless magnetic axis in a strong restoring force magnetic field having helical field lines to produce counterstreaming deuteron and triton beams that are received bent, stacked and transported along the endless axis, while a poloidal divertor removes thermal ions and electrons all along the axis to increase the density of the counterstreaming ion beams and the reaction products resulting therefrom. By balancing the stacking and removal, colliding, strong focused particle beams, reaction products and reactions are produced that convert one form of energy into another form of energy.

  6. A Highly Efficient Six-Stroke Internal Combustion Engine Cycle with Water Injection for In-Cylinder Exhaust Heat Recovery

    SciTech Connect

    Conklin, Jim; Szybist, James P

    2010-01-01

    A concept is presented here that adds two additional strokes to the four-stroke Otto or Diesel cycle that has the potential to increase fuel efficiency of the basic cycle. The engine cycle can be thought of as a 4 stroke Otto or Diesel cycle followed by a 2-stroke heat recovery steam cycle. Early exhaust valve closing during the exhaust stroke coupled with water injection are employed to add an additional power stroke at the end of the conventional four-stroke Otto or Diesel cycle. An ideal thermodynamics model of the exhaust gas compression, water injection at top center, and expansion was used to investigate this modification that effectively recovers waste heat from both the engine coolant and combustion exhaust gas. Thus, this concept recovers energy from two waste heat sources of current engine designs and converts heat normally discarded to useable power and work. This concept has the potential of a substantial increase in fuel efficiency over existing conventional internal combustion engines, and under appropriate injected water conditions, increase the fuel efficiency without incurring a decrease in power density. By changing the exhaust valve closing angle during the exhaust stroke, the ideal amount of exhaust can be recompressed for the amount of water injected, thereby minimizing the work input and maximizing the mean effective pressure of the steam expansion stroke (MEPsteam). The value of this exhaust valve closing for maximum MEPsteam depends on the limiting conditions of either one bar or the dew point temperature of the expansion gas/moisture mixture when the exhaust valve opens to discard the spent gas mixture in the sixth stroke. The range of MEPsteam calculated for the geometry of a conventional gasoline spark-ignited internal combustion engine and for plausible water injection parameters is from 0.75 to 2.5 bars. Typical combustion mean effective pressures (MEPcombustion) of naturally aspirated gasoline engines are up to 10 bar, thus this

  7. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Advanced Gasoline Turbocharged Direct Injection (GTDI) ...

  8. Advanced Particulate Filter Technologies for Direct Injection...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Specific ...

  9. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Turbocharged Direct Injection (GTDI) Engine Development Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine ...

  10. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook

    of natural gas into storage. However, shut-in natural gas production in the Gulf of Mexico reduced available current supplies, and so limited net injections during the report...

  11. Expanded unconventional oil and gas (UOG) development has led...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Expanded unconventional oil and gas (UOG) development has led to increased seismicity in ... magnitude 3.0 to 6.0, is large-scale wastewater injection from oil and gas production. ...

  12. Premixed direct injection nozzle for highly reactive fuels

    DOEpatents

    Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin Paul; York, William David; Uhm, Jong Ho; Zuo, Baifang

    2013-09-24

    A fuel/air mixing tube for use in a fuel/air mixing tube bundle is provided. The fuel/air mixing tube includes an outer tube wall extending axially along a tube axis between an inlet end and an exit end, the outer tube wall having a thickness extending between an inner tube surface having a inner diameter and an outer tube surface having an outer tube diameter. The tube further includes at least one fuel injection hole having a fuel injection hole diameter extending through the outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

  13. Field Testing of Activated Carbon Injection Options for Mercury Control at TXU's Big Brown Station

    SciTech Connect

    John Pavlish; Jeffrey Thompson; Christopher Martin; Mark Musich; Lucinda Hamre

    2009-01-07

    time that enhanced AC was injected, the average mercury removal for the month long test was approximately 74% across the test baghouse module. ACI was interrupted frequently during the month long test because the test baghouse module was bypassed frequently to relieve differential pressure. The high air-to-cloth ratio of operations at this unit results in significant differential pressure, and thus there was little operating margin before encountering differential pressure limits, especially at high loads. This limited the use of sorbent injection as the added material contributes to the overall differential pressure. This finding limits sustainable injection of AC without appropriate modifications to the plant or its operations. Handling and storage issues were observed for the TOXECON ash-AC mixture. Malfunctioning equipment led to baghouse dust hopper plugging, and storage of the stagnant material at flue gas temperatures resulted in self-heating and ignition of the AC in the ash. In the hoppers that worked properly, no such problems were reported. Economics of mercury control at Big Brown were estimated for as-tested scenarios and scenarios incorporating changes to allow sustainable operation. This project was funded under the U.S. Department of Energy National Energy Technology Laboratory project entitled 'Large-Scale Mercury Control Technology Field Testing Program--Phase II'.

  14. Injectivity Test | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Geothermal Area (1979) Raft River Geothermal Area 1979 1979 Evaluation of testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho Injectivity Test...

  15. FUEL FORMULATION EFFECTS ON DIESEL FUEL INJECTION, COMBUSTION, EMISSIONS AND EMISSION CONTROL

    SciTech Connect

    Boehman, A; Alam, M; Song, J; Acharya, R; Szybist, J; Zello, V; Miller, K

    2003-08-24

    This paper describes work under a U.S. DOE sponsored Ultra Clean Fuels project entitled ''Ultra Clean Fuels from Natural Gas,'' Cooperative Agreement No. DE-FC26-01NT41098. In this study we have examined the incremental benefits of moving from low sulfur diesel fuel and ultra low sulfur diesel fuel to an ultra clean fuel, Fischer-Tropsch diesel fuel produced from natural gas. Blending with biodiesel, B100, was also considered. The impact of fuel formulation on fuel injection timing, bulk modulus of compressibility, in-cylinder combustion processes, gaseous and particulate emissions, DPF regeneration temperature and urea-SCR NOx control has been examined. The primary test engine is a 5.9L Cummins ISB, which has been instrumented for in-cylinder combustion analysis and in-cylinder visualization with an engine videoscope. A single-cylinder engine has also been used to examine in detail the impacts of fuel formulation on injection timing in a pump-line-nozzle fueling system, to assist in the interpretation of results from the ISB engine.

  16. Fuel injection for internal combustion engines. (Latest citations from the NTIS bibliographic database). Published Search

    SciTech Connect

    1996-08-01

    The bibliography contains citations concerning research and development of fuel injection systems applied to internal combustion engines and turbines. Gasoline, diesel, synthetic fuels, and liquid gas systems are discussed relative to systems` variations and performances. Fuel injection atomization and combustion are considered in theory, and fuel injection relative to emission control is included.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  17. Fuel injection for internal combustion engines. (Latest citations from the NTIS Bibliographic database). Published Search

    SciTech Connect

    Not Available

    1993-09-01

    The bibliography contains citations concerning research and development of fuel injection systems applied to internal combustion engines and turbines. Gasoline, diesel, synthetic fuels, and liquid gas systems are discussed relative to systems' variations and performances. Fuel injection atomization and combustion are considered in theory, and fuel injection relative to emission control is included. (Contains a minimum of 223 citations and includes a subject term index and title list.)

  18. EIA - Analysis of Natural Gas Storage

    Annual Energy Outlook

    Prices This presentation provides information about EIA's estimates of working gas peak storage capacity, and the development of the natural gas storage industry....

  19. EIA - Natural Gas Storage Data & Analysis

    Annual Energy Outlook

    Storage Weekly Working Gas in Underground Storage U.S. Natural gas inventories held in underground storage facilities by East, West, and Producing regions (weekly). Underground...

  20. DOE Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin

    Energy.gov [DOE]

    Building on an initial injection project of 10,000 metric tons of carbon dioxide into a Michigan geologic formation, a U.S. Department of Energy team of regional partners has begun injecting 50,000 additional tons into the formation, which is believed capable of storing hundreds of years worth of CO2, a greenhouse gas that contributes to climate change.

  1. Recirculating rotary gas compressor

    DOEpatents

    Weinbrecht, John F.

    1992-01-01

    A positive displacement, recirculating Roots-type rotary gas compressor which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits (24 and 26) which return compressed discharge gas to the compressor housing (14), where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers (10 and 12) and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor.

  2. Recirculating rotary gas compressor

    DOEpatents

    Weinbrecht, J.F.

    1992-02-25

    A positive displacement, recirculating Roots-type rotary gas compressor is described which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits which return compressed discharge gas to the compressor housing, where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor. 12 figs.

  3. Updates on the Interagency Task Force on Natural Gas Storage...

    Energy Saver

    Updates on the Interagency Task Force on Natural Gas Storage Safety - Working with Stakeholders Updates on the Interagency Task Force on Natural Gas Storage Safety - Working with ...

  4. High potential recovery -- Gas repressurization

    SciTech Connect

    Madden, M.P.

    1998-05-01

    The objective of this project was to demonstrate that small independent oil producers can use existing gas injection technologies, scaled to their operations, to repressurize petroleum reservoirs and increase their economic oil production. This report gives background information for gas repressurization technologies, the results of workshops held to inform small independent producers about gas repressurization, and the results of four gas repressurization field demonstration projects. Much of the material in this report is based on annual reports (BDM-Oklahoma 1995, BDM-Oklahoma 1996, BDM-Oklahoma 1997), a report describing the results of the workshops (Olsen 1995), and the four final reports for the field demonstration projects which are reproduced in the Appendix. This project was designed to demonstrate that repressurization of reservoirs with gas (natural gas, enriched gas, nitrogen, flue gas, or air) can be used by small independent operators in selected reservoirs to increase production and/or decrease premature abandonment of the resource. The project excluded carbon dioxide because of other DOE-sponsored projects that address carbon dioxide processes directly. Two of the demonstration projects, one using flue gas and the other involving natural gas from a deeper coal zone, were both technical and economic successes. The two major lessons learned from the projects are the importance of (1) adequate infrastructure (piping, wells, compressors, etc.) and (2) adequate planning including testing compatibility between injected gases and fluids, and reservoir gases, fluids, and rocks.

  5. The Armco/B and W coal injection technology

    SciTech Connect

    Sexton, J.R.

    1994-12-31

    A general presentation is given of the development of pulverized coal injection at the Ashland Works from the initial installation in 1963 to the present. An explanation of the flow sheets for pulverization and injection along with safety and explosion prevention will be discussed. The unique parameters of the Armco/B and W system will be explained and the operations at various steel plants presented.

  6. Injection nozzle for a turbomachine

    DOEpatents

    Uhm, Jong Ho; Johnson, Thomas Edward; Kim, Kwanwoo

    2012-09-11

    A turbomachine includes a compressor, a combustor operatively connected to the compressor, an end cover mounted to the combustor, and an injection nozzle assembly operatively connected to the combustor. The injection nozzle assembly includes a first end portion that extends to a second end portion, and a plurality of tube elements provided at the second end portion. Each of the plurality of tube elements defining a fluid passage includes a body having a first end section that extends to a second end section. The second end section projects beyond the second end portion of the injection nozzle assembly.

  7. Non-plugging injection valve

    DOEpatents

    Carey, Jr., Henry S.

    1985-01-01

    A valve for injecting fluid into a conduit carrying a slurry subject to separation to form deposits capable of plugging openings into the conduit. The valve comprises a valve body that is sealed to the conduit about an aperture formed through the wall of the conduit to receive the fluid to be injected and the valve member of the valve includes a punch portion that extends through the injection aperture to the flow passage, when the valve is closed, to provide a clear channel into the conduit, when the valve is opened, through deposits which might have formed on portions of the valve adjacent the conduit.

  8. Work Plan

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Work Plan NSSAB Members Vote on Work Plan Tasks; The Nevada Site Specific Advisory Board operates on a fiscal year basis and conducts work according to a NSSAB generated and U.S. ...

  9. Thief process for the removal of mercury from flue gas

    DOEpatents

    Pennline, Henry W.; Granite, Evan J.; Freeman, Mark C.; Hargis, Richard A.; O'Dowd, William J.

    2003-02-18

    A system and method for removing mercury from the flue gas of a coal-fired power plant is described. Mercury removal is by adsorption onto a thermally activated sorbent produced in-situ at the power plant. To obtain the thermally activated sorbent, a lance (thief) is inserted into a location within the combustion zone of the combustion chamber and extracts a mixture of semi-combusted coal and gas. The semi-combusted coal has adsorptive properties suitable for the removal of elemental and oxidized mercury. The mixture of semi-combusted coal and gas is separated into a stream of gas and semi-combusted coal that has been converted to a stream of thermally activated sorbent. The separated stream of gas is recycled to the combustion chamber. The thermally activated sorbent is injected into the duct work of the power plant at a location downstream from the exit port of the combustion chamber. Mercury within the flue gas contacts and adsorbs onto the thermally activated sorbent. The sorbent-mercury combination is removed from the plant by a particulate collection system.

  10. 13,279,806 Metric Tons of CO2 Injected as of October 3, 2016 | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy 13,279,806 Metric Tons of CO2 Injected as of October 3, 2016 13,279,806 Metric Tons of CO2 Injected as of October 3, 2016 This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is equivalent to the annual greenhouse gas emissions from 210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and

  11. A modeling of buoyant gas plume migration

    SciTech Connect

    Silin, D.; Patzek, T.; Benson, S.M.

    2008-12-01

    This work is motivated by the growing interest in injecting carbon dioxide into deep geological formations as a means of avoiding its atmospheric emissions and consequent global warming. Ideally, the injected greenhouse gas stays in the injection zone for a geologic time, eventually dissolves in the formation brine and remains trapped by mineralization. However, one of the potential problems associated with the geologic method of sequestration is that naturally present or inadvertently created conduits in the cap rock may result in a gas leakage from primary storage. Even in a supercritical state, the carbon dioxide viscosity and density are lower than those of the formation brine. Buoyancy tends to drive the leaked CO{sub 2} plume upward. Theoretical and experimental studies of buoyancy-driven supercritical CO{sub 2} flow, including estimation of time scales associated with plume evolution and migration, are critical for developing technology, monitoring policy, and regulations for safe carbon dioxide geologic sequestration. In this study, we obtain simple estimates of vertical plume propagation velocity taking into account the density and viscosity contrast between CO{sub 2} and brine. We describe buoyancy-driven countercurrent flow of two immiscible phases by a Buckley-Leverett type model. The model predicts that a plume of supercritical carbon dioxide in a homogeneous water-saturated porous medium does not migrate upward like a bubble in bulk water. Rather, it spreads upward until it reaches a seal or until it becomes immobile. A simple formula requiring no complex numerical calculations describes the velocity of plume propagation. This solution is a simplification of a more comprehensive theory of countercurrent plume migration (Silin et al., 2007). In a layered reservoir, the simplified solution predicts a slower plume front propagation relative to a homogeneous formation with the same harmonic mean permeability. In contrast, the model yields much higher

  12. Method and apparatus for preventing overspeed in a gas turbine

    DOEpatents

    Walker, William E.

    1976-01-01

    A method and apparatus for preventing overspeed in a gas turbine in response to the rapid loss of applied load is disclosed. The method involves diverting gas from the inlet of the turbine, bypassing the same around the turbine and thereafter injecting the diverted gas at the turbine exit in a direction toward or opposing the flow of gas through the turbine. The injected gas is mixed with the gas exiting the turbine to thereby minimize the thermal shock upon equipment downstream of the turbine exit.

  13. NSLS-II INJECTION CONCEPT.

    SciTech Connect

    SHAFTAN, T.; PINAYEV, I.; ROSE, J.; WANG, X.J.; ET AL.

    2005-05-16

    Currently the facility upgrade project is in progress at the NSLS (at Brookhaven National Laboratory). The goal of the NSLS-II is a 3 GeV ultra-low-emittance storage ring that will increase radiation brightness by three orders of magnitude over that of the present NSLS X-ray ring. The low emittance of the high brightness ring's lattice results in a short lifetime, so that a top-off injection mode becomes an operational necessity. Therefore, the NSLS-II injection system must provide, and efficiently inject, an electron beam at a high repetition rate. In this paper, we present our concept of the NSLS-II injection system and discuss the conditions for, and constraints on, its design.

  14. Philadelphia Gas Works- Home Rebates Program

    Energy.gov [DOE]

    PGW’s Home Rebate program is available for residential customers within the PGW service territory. To participate in the program, the homeowner must first obtain a discounted home energy audit from...

  15. Working Gas Capacity of Depleted Fields

    Annual Energy Outlook

    296,096 311,096 335,396 349,296 364,296 364,296 2008-2014 Colorado 48,129 49,119 48,709 60,582 60,582 63,774 2008-2014 Illinois 51,418 87,368 87,368 87,368 11,768 11,768...

  16. Working Natural Gas in Underground Storage (Summary)

    Energy Information Administration (EIA) (indexed site)

    Alabama 23,276 24,493 24,742 19,955 20,669 20,992 1995-2016 Alaska 24,595 24,461 24,319 24,295 24,790 25,241 2013-2016 Arkansas 2,222 2,132 1,808 1,374 1,057 619 1990-2016 ...

  17. Weekly Working Gas in Underground Storage

    Gasoline and Diesel Fuel Update

    Storage-test (Billion Cubic Feet) Period: Weekly Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Region 031816 032516 ...

  18. Working Gas Capacity of Salt Caverns

    Gasoline and Diesel Fuel Update

    271,785 312,003 351,017 488,268 455,729 488,698 2008-2014 Alabama 11,900 16,150 16,150 16,150 16,150 21,950 2008-2014 Arkansas 0 0 2012-2014 California 0 0 2012-2014 Colorado 0 0...

  19. Weekly Working Gas in Underground Storage

    Gasoline and Diesel Fuel Update

    7/16 10/14/16 10/21/16 10/28/16 11/04/16 11/11/16 View History Total Lower 48 States 3,759 3,836 3,909 3,963 4,017 4,047 2010-2016 East 913 925 939 940 946 944 2010-2016 Midwest 1,071 1,093 1,115 1,130 1,148 1,155 2010-2016 Mountain 240 243 245 249 253 257 2010-2016 Pacific 323 325 326 326 327 328 2010-2016 South Central 1,212 1,250 1,284 1,318 1,343 1,363 2010-2016 Salt 305 330 352 374 385 394 2010-2016 Nonsalt 907 920 931 944 958 969 2010-2016 - = No Data Reported; -- = Not Applicable; NA =

  20. Underground Natural Gas Working Storage Capacity - Methodology

    Gasoline and Diesel Fuel Update

    Jan Stuart +1-212-713-1074 jan.stuart@ubs.com Outline: EIA oil data on Wall Street, the UBS case ¨ Part A - Why we care - What we use the data for - Fundamentals more than anything else push oil prices around - What's even scarcer than oil is good timely data ¨ Part B - Quibbles - Year-over-year comparisons, growth rates or levels - "Revisions" - Filling-in-the-blanks ¨ Part C - I wish - Weekly crude oil imports by source - Inclusion of other federal stats driving oil demand 2 Jan

  1. Working Gas in Underground Storage Figure

    Gasoline and Diesel Fuel Update

    68.6 47.3 29.6 20.4 13.5 6.2 1973-2016 Alaska 3.5 10.2 18.0 23.6 30.8 38.3 2013-2016 Lower 48 States 69.7 47.8 29.7 20.3 13.4 6.0 2011-2016 Alabama 163.9 67.0 26.8 15.0 -4.6 -10.7 1996-2016 Arkansas -40.3 -34.0 -28.2 -25.9 -12.7 -4.4 1991-2016 California -3.3 -2.8 -7.1 -7.7 -10.5 -11.3 1991-2016 Colorado 10.8 14.3 13.5 7.7 7.2 4.4 1991-2016 Illinois 15.1 8.8 2.0 3.4 -0.3 -0.7 1991-2016 Indiana 56.6 45.0 34.1 23.1 14.8 4.5 1991-2016 Iowa 10.2 2.7 -9.5 -20.0 -20.3 -13.7 1991-2016 Kansas 52.9 59.7

  2. Working Gas % Change from Year Ago

    Energy Information Administration (EIA) (indexed site)

    Washington -0.6 -10.8 -20.6 -8.7 -21.2 -20.7 1991-2016 West Virginia 2.7 10.1 16.0 21.3 45.6 87.6 1991-2016 Wyoming 0.6 4.3 3.1 -0.8 -0.8 5.1 1991-2016 AGA Producing Region ...

  3. Working Gas Volume Change from Year Ago

    Energy Information Administration (EIA) (indexed site)

    West Virginia 5,456 18,992 25,179 21,224 26,766 34,404 1990-2016 Wyoming 173 1,291 872 -218 -200 1,161 1990-2016 AGA Producing Region 1994-2014 AGA Eastern Consuming Region ...

  4. Adaptive engine injection for emissions reduction

    DOEpatents

    Reitz, Rolf D. : Sun, Yong

    2008-12-16

    NOx and soot emissions from internal combustion engines, and in particular compression ignition (diesel) engines, are reduced by varying fuel injection timing, fuel injection pressure, and injected fuel volume between low and greater engine loads. At low loads, fuel is injected during one or more low-pressure injections occurring at low injection pressures between the start of the intake stroke and approximately 40 degrees before top dead center during the compression stroke. At higher loads, similar injections are used early in each combustion cycle, in addition to later injections which preferably occur between about 90 degrees before top dead center during the compression stroke, and about 90 degrees after top dead center during the expansion stroke (and which most preferably begin at or closely adjacent the end of the compression stroke). These later injections have higher injection pressure, and also lower injected fuel volume, than the earlier injections.

  5. Investigation and demonstration of dry carbon-based sorbent injection for mercury control. Quarterly technical report, April 1--June 30, 1996

    SciTech Connect

    Hunt, T.; Sjostrom, S.; Smith, J.; Chang, R.

    1996-07-27

    The overall objective this two phase program is to investigate the use of dry carbon-based sorbents for mercury control. During Phase 1, a bench-scale field test device that can be configured as an electrostatic precipitator, a pulse-jet baghouse, or a reverse-gas baghouse has been designed and will be integrated with an existing pilot-scale facility at PSCo`s Comanche Station. Up to three candidate sorbents will then be injected into the flue gas stream upstream of the test device to determine the mercury removal efficiency for each sorbent. During the Phase 11 effort, component integration for the most promising dry sorbent technology (technically and economically feasible) shall be tested at the 5000 acfm pilot-scale. An extensive work plan has been developed for the project. Three sorbents will be selected for evaluation at the facility through investigation, presentation, and discussion among team members: PSCO, EPRI, ADA, and DOE. The selected sorbents will be tested in the five primary bench-scale configurations: pulse `et baghouse, TOXECON, reverse-gas baghouse, electrostatic precipitator, and an ESP or fabric filter `with no Comanche ash in the flue gas stream. In the EPRI TOXECON system, mercury sorbents will be injected downstream of a primary particulate control device, and collected in a pulse-jet baghouse operated at air-to-cloth ratios of 12 to 16 ft/min, thus separating the mercury and sorbent from the captured flyash. In the no-ash configuration, an external flyash sample will be injected into a clean gas stream to investigate possible variations in sorbent effectiveness in the presence of different ashes. The use of an existing test facility, a versatile design for the test fixture, and installation of a continuous mercury analyzer will allow for the completion of this ambitious test plan. The primary activity during the quarter was to complete fabrication and installation of the facility.

  6. Development and Optimization of Gas-Assisted Gravity Drainage (GAGD) Process for Improved Light Oil Recovery

    SciTech Connect

    Dandina N. Rao; Subhash C. Ayirala; Madhav M. Kulkarni; Wagirin Ruiz Paidin; Thaer N. N. Mahmoud; Daryl S. Sequeira; Amit P. Sharma

    2006-09-30

    This is the final report describing the evolution of the project ''Development and Optimization of Gas-Assisted Gravity Drainage (GAGD) Process for Improved Light Oil Recovery'' from its conceptual stage in 2002 to the field implementation of the developed technology in 2006. This comprehensive report includes all the experimental research, models developments, analyses of results, salient conclusions and the technology transfer efforts. As planned in the original proposal, the project has been conducted in three separate and concurrent tasks: Task 1 involved a physical model study of the new GAGD process, Task 2 was aimed at further developing the vanishing interfacial tension (VIT) technique for gas-oil miscibility determination, and Task 3 was directed at determining multiphase gas-oil drainage and displacement characteristics in reservoir rocks at realistic pressures and temperatures. The project started with the task of recruiting well-qualified graduate research assistants. After collecting and reviewing the literature on different aspects of the project such gas injection EOR, gravity drainage, miscibility characterization, and gas-oil displacement characteristics in porous media, research plans were developed for the experimental work to be conducted under each of the three tasks. Based on the literature review and dimensional analysis, preliminary criteria were developed for the design of the partially-scaled physical model. Additionally, the need for a separate transparent model for visual observation and verification of the displacement and drainage behavior under gas-assisted gravity drainage was identified. Various materials and methods (ceramic porous material, Stucco, Portland cement, sintered glass beads) were attempted in order to fabricate a satisfactory visual model. In addition to proving the effectiveness of the GAGD process (through measured oil recoveries in the range of 65 to 87% IOIP), the visual models demonstrated three possible

  7. An update on blast furnace granular coal injection

    SciTech Connect

    Hill, D.G.; Strayer, T.J.; Bouman, R.W.

    1997-12-31

    A blast furnace coal injection system has been constructed and is being used on the furnace at the Burns Harbor Division of Bethlehem Steel. The injection system was designed to deliver both granular (coarse) and pulverized (fine) coal. Construction was completed on schedule in early 1995. Coal injection rates on the two Burns Harbor furnaces were increased throughout 1995 and was over 200 lbs/ton on C furnace in September. The injection rate on C furnace reached 270 lbs/ton by mid-1996. A comparison of high volatile and low volatile coals as injectants shows that low volatile coal replaces more coke and results in a better blast furnace operation. The replacement ratio with low volatile coal is 0.96 lbs coke per pound of coal. A major conclusion of the work to date is that granular coal injection performs very well in large blast furnaces. Future testing will include a processed sub-bituminous coal, a high ash coal and a direct comparison of granular versus pulverized coal injection.

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    a decrease of about 0.36, or 6.9 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage totaled 2,213 Bcf as...

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    by 0.409 or 8 percent per MMBtu to 4.850 since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,796 Bcf as of...

  10. Natural Gas Weekly Update

    Annual Energy Outlook

    supply disruptions during the remainder of the hurricane season. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage was 2,461 Bcf as of Friday,...

  11. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    (August 5) and the low price of 2.804 (August 21) per MMBtu. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 3,323 Bcf as of...

  12. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    2009 contract, which closed at 12.987 per MMBtu on May 28. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 1,701 Bcf as of...

  13. Natural Gas Weekly Update

    Annual Energy Outlook

    7.02 per MMBtu, an increase of about 0.24 since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage totaled 3,488 Bcf as of...

  14. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    5.06 per MMBtu, a decrease of only 0.01 per MMBtu on the week. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,762...

  15. Natural Gas Weekly Update

    Annual Energy Outlook

    a decrease of about 0.09, or 1.7 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage decreased to 1,737 Bcf as of...

  16. Natural Gas Weekly Update

    Annual Energy Outlook

    decreasing about 0.23, or 4.4 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,840...

  17. Natural Gas Weekly Update

    Annual Energy Outlook

    MMBtu lower than the final price of the November 2009 contract. Wellhead Prices Annual Energy Review More Price Data Storage As of Friday, September 24, working natural gas in...

  18. Natural Gas Weekly Update

    Annual Energy Outlook

    fell 31 cents, from 5.554 last Wednesday to 5.239 yesterday. Wellhead Prices Annual Energy Review More Price Data Storage Working natural gas in storage increased to 2,165...

  19. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    expectations of robust storage inventories in the coming months. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,886 Bcf as of...

  20. Natural Gas Weekly Update

    Annual Energy Outlook

    38 cents per MMBtu, or about 7 percent, during the report week. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage decreased to 1,996 Bcf as of...

  1. Natural Gas Weekly Update

    Annual Energy Outlook

    January 2009 contract, which closed at 12.74 per MMBtu on May 14. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 1,529 Bcf as of...

  2. Natural Gas Weekly Update

    Annual Energy Outlook

    2009 to September 2009 posting declines of more than 30 cents. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,116 Bcf as of...

  3. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    a decrease of about 0.25, or 5.1 percent, since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage totaled 1,823 Bcf as of...

  4. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    since last week, ending trading yesterday at 5.084 per MMBtu. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage totaled 2,089 Bcf as of...

  5. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    was 62 percent below the level reported last year at this time. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,013 Bcf as of...

  6. Natural Gas Weekly Update

    Annual Energy Outlook

    at 7.39 per MMBtu, which is 76 cents lower than last week. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 3,198 Bcf as of...

  7. Natural Gas Weekly Update

    Annual Energy Outlook

    9.08 per MMBtu, an increase of about 0.32 since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,757 Bcf as of...

  8. Natural Gas Weekly Update

    Annual Energy Outlook

    per MMBtu, 22 cents or 4.3 percent lower than last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage decreased to 1,615 Bcf as of...

  9. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update

    2009 contract, which closed at 13.84 per MMBtu on June 25. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,033 Bcf as of...

  10. Natural Gas Weekly Update

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    response was somewhat more pronounced (down 5.3 percent) with the September 2011 natural gas contract losing ground over the week, closing at 4.090 per MMBtu on Wednesday. Working...

  11. Natural Gas Weekly Update

    Annual Energy Outlook

    since last Wednesday in every region of the country except in the West. Working gas in storage was 623 Bcf as of April 11, which was 49 percent below the previous 5-year...

  12. Natural Gas Weekly Update

    Annual Energy Outlook

    9.34 per MMBtu, a decrease of about 0.32 since last Wednesday. Wellhead Prices Annual Energy Review More Price Data Storage Working gas in storage increased to 2,517 Bcf as of...

  13. Midwest Region Natural Gas in Underground Storage (Working Gas...

    Energy Information Administration (EIA) (indexed site)

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 449,673 237,999 142,513 179,338 317,901 471,765 625,764 788,930 935,822 1,047,609 972,803 854,545 2015 617,716 345,091 ...

  14. West Virginia Natural Gas in Underground Storage (Working Gas...

    Energy Information Administration (EIA) (indexed site)

    72,781 96,991 120,021 128,965 146,728 161,226 138,140 98,925 1996 58,862 28,134 5,245 ... 41,617 73,760 112,584 144,708 167,434 191,226 201,322 193,811 151,497 2004 93,076 59,499 ...

  15. Utah Natural Gas in Underground Storage (Working Gas) (Million...

    Energy Information Administration (EIA) (indexed site)

    19,120 11,915 6,118 7,419 9,193 10,977 15,226 20,591 26,089 27,689 23,281 16,335 1992 ... 20,126 22,061 29,069 34,478 40,280 42,226 45,097 47,826 46,870 38,220 2011 25,127 ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  17. Midwest Region Natural Gas Injections into Underground Storage...

    Energy Information Administration (EIA) (indexed site)

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2014 7,437 14,235 22,615 66,408 136,813 155,687 156,839 166,332 149,212 119,162 35,641 16,420 2015 7,171 4,815 20,994 74,813 ...

  18. Colorado Natural Gas Injections into Underground Storage (Million...

    Energy Information Administration (EIA) (indexed site)

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 538 235 252 265 1,274 4,266 6,279 5,212 5,012 1,957 1,734 650 1991 992 654 483 61 2,494 3,876 4,219 4,449 5,296 3,296 ...

  19. Michigan Natural Gas Injections into Underground Storage (Million...

    Energy Information Administration (EIA) (indexed site)

    76,718 72,178 53,824 26,587 11,504 2,212 1991 1,032 3,107 15,520 34,937 50,769 ... 55,631 32,359 9,649 4,881 2009 2,827 3,212 12,072 48,476 76,810 78,890 79,555 63,194 ...

  20. AGA Eastern Consuming Region Natural Gas Injections into Underground...

    Energy Information Administration (EIA) (indexed site)

    36,048 85,712 223,991 260,731 242,718 212,493 214,385 160,007 37,788 12,190 1996 ... 1999 18,032 8,946 26,228 111,081 229,212 205,889 185,349 217,043 223,192 146,647 ...