National Library of Energy BETA

Sample records for gas abatement study

  1. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Marnay, Chris

    2010-01-01

    BERKELEY NATIONAL LABORATORY Greenhouse Gas Abatement withan equal opportunity employer. Greenhouse Gas Abatement withgeneration (DG) in greenhouse gas reductions by * a p p l y

  2. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    Lai (2009b), “Control of Greenhouse Gas Emissions by Optimal2008), “Developing a Greenhouse Gas Tool for Buildings inERKELEY N ATIONAL L ABORATORY Greenhouse Gas Abatement with

  3. Fact #879: June 29, 2015 Greenhouse Gas Abatement Costs forEmployer...

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

    9: June 29, 2015 Greenhouse Gas Abatement Costs for Employer-Subsidized Commuting Options Fact 879: June 29, 2015 Greenhouse Gas Abatement Costs for Employer-Subsidized Commuting...

  4. Fact #879: June 29, 2015 Greenhouse Gas Abatement Costs forEmployer...

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

    Fact 879: June 29, 2015 Greenhouse Gas Abatement Costs for Employer-Subsidized Commuting Options - Dataset Fact 879: June 29, 2015 Greenhouse Gas Abatement Costs for...

  5. Abating Greenhouse Gas Emissions through Cash-for-Clunker Programs

    E-Print Network [OSTI]

    Allen, Alexander; Carpenter, Rachel; Morrison, Geoff

    2009-01-01

    Agency. Inventory of U.S. Greenhouse Gas Emissions andAdministration. Emissions of Greenhouse Gases in the UnitedAbating Greenhouse Gas Emissions through Cash-for-Clunker

  6. Brake Defect Causation and Abatement Study (BDCAS)

    E-Print Network [OSTI]

    cost with proper re- pairs being made the first time and reduction in out-of-service vehicles #12; corrective actions and validate true abatement of initial out-of- service causation the FMCSA began the BDCAS brake efficiency data as new brakes are burnished; and where possible, collect brake efficiency data

  7. Tax-versus-trading and efficient revenue recycling as issues for greenhouse gas abatement

    E-Print Network [OSTI]

    Pezzey, Jack

    Tax-versus-trading and efficient revenue recycling as issues for greenhouse gas abatement Final, climate policy, global Abstract. We give empirical welfare results for global greenhouse gas emission greenhouse abatement mechanism should thus consider the issues of tax-versus-trading and efficient revenue

  8. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    SciTech Connect (OSTI)

    Stadler, Michael; Marnay, Chris; Cardoso, Goncalo; Megel, Olivier; Siddiqui, Afzal; Lai, Judy

    2009-08-15

    Lawrence Berkeley National Laboratory (LBL) is working with the California Energy Commission (CEC) to determine the role of distributed generation (DG) in greenhouse gas reductions. The impact of DG on large industrial sites is well known, and mostly, the potentials are already harvested. In contrast, little is known about the impact of DG on commercial buildings with peak electric loads ranging from 100 kW to 5 MW. We examine how DG with combined heat and power (CHP) may be implemented within the context of a cost minimizing microgrid that is able to adopt and operate various smart energy technologies, such as thermal and photovoltaic (PV) on-site generation, heat exchangers, solar thermal collectors, absorption chillers, and storage systems. We use a mixed-integer linear program (MILP) that has the minimization of a site's annual energy costs as objective. Using 138 representative commercial sites in California (CA) with existing tariff rates and technology data, we find the greenhouse gas reduction potential for California's commercial sector. This paper shows results from the ongoing research project and finished work from a two year U.S. Department of Energy research project. To show the impact of the different technologies on CO2 emissions, several sensitivity runs for different climate zones within CA with different technology performance expectations for 2020 were performed. The considered sites can contribute between 1 Mt/a and 1.8 Mt/a to the California Air Resources Board (CARB) goal of 6.7Mt/a CO2 abatement potential in 2020. Also, with lower PV and storage costs as well as consideration of a CO2 pricing scheme, our results indicate that PV and electric storage adoption can compete rather than supplement each other when the tariff structure and costs of electricity supply have been taken into consideration. To satisfy the site's objective of minimizing energy costs, the batteries will be charged also by CHP systems during off-peak and mid-peak hours and not only by PV during sunny on-peak hours.

  9. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    cost (M$/a) abatement cost ($/t) CO2 emissions reduction (cost (M$/a) abatement cost ($/t) CO2 emissions reduction (cost (M$/a) abatement cost ($/t) CO2 emissions reduction (

  10. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    SciTech Connect (OSTI)

    Marnay, Chris; Stadler, Michael; Lipman, Tim; Lai, Judy; Cardoso, Goncalo; Megel, Olivier

    2009-09-01

    The motivation and objective of this research is to determine the role of distributed generation (DG) in greenhouse gas reductions by: (1) applying the Distributed Energy Resources Customer Adoption Model (DER-CAM); (2) using the California Commercial End-Use Survey (CEUS) database for commercial buildings; (3) selecting buildings with electric peak loads between 100 kW and 5 MW; (4) considering fuel cells, micro-turbines, internal combustion engines, gas turbines with waste heat utilization, solar thermal, and PV; (5) testing of different policy instruments, e.g. feed-in tariff or investment subsidies.

  11. Indonesia Greenhouse Gas Abatement Cost Curve | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimenMaking Energy Efficiency RealIndianaGreenhouse Gas

  12. Marginal Abatement Costs and Marginal Welfare Costs for Greenhouse Gas Emissions Reductions: Results from the EPPA Model

    E-Print Network [OSTI]

    Morris, Jennifer

    Marginal abatement cost (MAC) curves, relationships between tons of emissions abated and the CO2 (or GHG) price, have been widely used as pedagogic devices to illustrate simple economic concepts such as the benefits of ...

  13. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    MW Reciprocating Engine 3 MW Gas Turbine 1 MW ReciprocatingEngine 5 MW Gas Turbine 3MW Gas Turbine 40 MW Gas Turbine 1 MW Reciprocating Engine

  14. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    sources listed here, non-cogeneration natural gas sourcesthe conclusion that only non-cogeneration natural-gas-firedforecasted level of non-cogeneration natural gas generation

  15. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    considered, turbines, reciprocating engines, and one small3 MW Gas Turbine 1 MW Reciprocating Engine 5 MW Gas Turbine40 MW Gas Turbine 1 MW Reciprocating Engine 10 MW Gas

  16. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    natural-gas- fired combined cycle generation, and the othernatural-gas-fired combined cycle plants. This assumptionplants were efficient combined cycle plants. The four

  17. Emission Abatement System

    DOE Patents [OSTI]

    Bromberg, Leslie (Sharon, MA); Cohn, Daniel R. (Chestnut Hill, MA); Rabinovich, Alexander (Swampscott, MA)

    2003-05-13

    Emission abatement system. The system includes a source of emissions and a catalyst for receiving the emissions. Suitable catalysts are absorber catalysts and selective catalytic reduction catalysts. A plasma fuel converter generates a reducing gas from a fuel source and is connected to deliver the reducing gas into contact with the absorber catalyst for regenerating the catalyst. A preferred reducing gas is a hydrogen rich gas and a preferred plasma fuel converter is a plasmatron. It is also preferred that the absorber catalyst be adapted for absorbing NO.sub.x.

  18. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    efficiency natural gas power plant case, high penetrationgas and petroleum products as well as the remote power plant

  19. Fact #879: June 29, 2015 Greenhouse Gas Abatement Costs for Employer-Subsidized Commuting Options

    Broader source: Energy.gov [DOE]

    Providing workplace charging is one of the more effective ways for businesses to reduce the greenhouse gas emissions of their employees’ daily commute. Offering a bike purchase subsidy can be even...

  20. OPTIONS FOR ABATING GREENHOUSE GASES FROM EXHAUST STREAMS.

    SciTech Connect (OSTI)

    FTHENAKIS,V.

    2001-12-01

    This report examines different alternatives for replacing, treating, and recycling greenhouse gases. It is concluded that treatment (abatement) is the only viable short-term option. Three options for abatement that were tested for use in semiconductor facilities are reviewed, and their performance and costs compared. This study shows that effective abatement options are available to the photovoltaic (PV) industry, at reasonable cost.

  1. Potential Cost-Effective Opportunities for Methane Emission Abatement

    SciTech Connect (OSTI)

    Warner, Ethan; Steinberg, Daniel; Hodson, Elke; Heath, Garvin

    2015-08-01

    The energy sector was responsible for approximately 84% of carbon dioxide equivalent (CO2e) greenhouse gas (GHG) emissions in the U.S. in 2012 (EPA 2014a). Methane is the second most important GHG, contributing 9% of total U.S. CO2e emissions. A large portion of those methane emissions result from energy production and use; the natural gas, coal, and oil industries produce approximately 39% of anthropogenic methane emissions in the U.S. As a result, fossil-fuel systems have been consistently identified as high priority sectors to contribute to U.S. GHG reduction goals (White House 2015). Only two studies have recently attempted to quantify the abatement potential and cost associated with the breadth of opportunities to reduce GHG emissions within natural gas, oil, and coal supply chains in the United States, namely the U.S. Environmental Protection Agency (EPA) (2013a) and ICF (2014). EPA, in its 2013 analysis, estimated the marginal cost of abatement for non-CO2 GHG emissions from the natural gas, oil, and coal supply chains for multiple regions globally, including the United States. Building on this work, ICF International (ICF) (2014) provided an update and re-analysis of the potential opportunities in U.S. natural gas and oil systems. In this report we synthesize these previously published estimates as well as incorporate additional data provided by ICF to provide a comprehensive national analysis of methane abatement opportunities and their associated costs across the natural gas, oil, and coal supply chains. Results are presented as a suite of marginal abatement cost curves (MACCs), which depict the total potential and cost of reducing emissions through different abatement measures. We report results by sector (natural gas, oil, and coal) and by supply chain segment - production, gathering and boosting, processing, transmission and storage, or distribution - to facilitate identification of which sectors and supply chain segments provide the greatest opportunities for low cost abatement.

  2. FRASER POLLUTION ABATEMENT OFFICE

    E-Print Network [OSTI]

    #12;-. FRASER POLLUTION ABATEMENT OFFICE 1992-93 Progress Report By MaggieM. Paquet MAIAPublishingLtd. 302 E. 6th Street NorthVancouver,BC V7L 1P6 For FraserPollutionAbatementOffice EnvironmentCanada 224W objectives of FRAP is to clean up pollution in the Fraser River Basin. This objective depends on pollution

  3. FRASER POLLUTION ABATEMENT OFFICE

    E-Print Network [OSTI]

    #12;FRASER POLLUTION ABATEMENT OFFICE PROGRESS REPORT 1994-95 Prepared By Maggie M. Paquet MAIA Publishing Ltd. Vancouver, BC For Technology and Pollution Prevention Section Fraser River Action Plan Environment Canada, FPAO Progress Report 1994-1995 ACKNOWLEDGEMENTS The Fraser Pollution Abatement Office

  4. The impact of instrument choice on investment in abatement technologies: a case study of tax versus trade incentives for CCS and Biomass for electricity

    E-Print Network [OSTI]

    Laing, T.; Grubb, Michael

    opportunities for wider deployment of the technology, and may be externally funded, at least partially, through government support. CCS is an immature technology, in comparison with biomass for power, with greater uncertainty over costs and performance... K IN G P A P E R Abstract The impact of instrument choice on investment in abatement technologies: a case study of tax versus trade incentives for CCS and Biomass for electricity EPRG Working Paper 1004 Cambridge Working Paper...

  5. Emission abatement system utilizing particulate traps

    DOE Patents [OSTI]

    Bromberg, Leslie (Sharon, MA); Cohn, Daniel R. (Chestnut Hill, MA); Rabinovich, Alexander (Swampscott, MA)

    2004-04-13

    Emission abatement system. The system includes a source of emissions and a catalyst for receiving the emissions. Suitable catalysts are absorber catalysts and selective catalytic reduction catalysts. A plasma fuel converter generates a reducing gas from a fuel source and is connected to deliver the reducing gas into contact with the absorber catalyst for regenerating the catalyst. A preferred reducing gas is a hydrogen rich gas and a preferred plasma fuel converter is a plasmatron. It is also preferred that the absorber catalyst be adapted for absorbing NO.sub.x.

  6. Asia Least-Cost Greenhouse Gas Abatement Study | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A SOpenAshley, Ohio: Energy Resources JumpAshworthsLeast-Cost

  7. Modeling and managing separation for noise abatement arrival procedures

    E-Print Network [OSTI]

    Ren, Liling

    2007-01-01

    Aircraft noise is a significant concern to communities near airports, and therefore a constraint to the growth of aviation. Advanced noise abatement approach and arrival procedures have been shown in previous studies and ...

  8. Gas Saturation and Sensitivity Analysis Using CRiSP 1 Gas Saturation and Sensitivity Analysis Using CRiSP

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Gas Saturation and Sensitivity Analysis Using CRiSP 1 Gas Saturation and Sensitivity Analysis Using of Engineers began the Gas Abatement Study in order to address the problem of gas and its effects on the Snake and Columbia Rivers. One important question is how much gas reductions caused by structural changes at a few

  9. Flexible NOx Abatement from Power

    E-Print Network [OSTI]

    's Integrated Global System Model. Through this integrated model, the Program seeks to: discover new quality management strategies for NOx emissions from electric generating units. Results from a modelFlexible NOx Abatement from Power Plants in the Eastern United States* Lin Sun, Mort Webster, Gary

  10. Measuring Abatement Potentials When Multiple Change is Present: The Case of Greenhouse Gas Mitigation in U.S. Agriculture and Forestry

    E-Print Network [OSTI]

    McCarl, Bruce A.

    can also offset greenhouse gas (GHG) emissions by increasing production of energy crops, which can Professor Department of Agricultural Economics Texas A&M University Hamburg, Germany April 2003 1 #12 with conventional agricultural production. Competition among practices is examined under a wide range

  11. Gas Generation Equations for CRiSP 1.6 April 21, 1998 1 Gas Generation Equations for CRiSP 1.6

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Gas Generation Equations for CRiSP 1.6 April 21, 1998 1 Gas Generation Equations for CRiSP 1.6 Theory For CRiSP.1.6 new equations have been implemented for gas production from spill. As a part of the US Army Corps' Gas Abatement study, Waterways Experiment Station (WES) has developed these new

  12. Harris County- Property Tax Abatement for Green Commercial Buildings

    Broader source: Energy.gov [DOE]

    This type of tax abatement may be sought by an applicant of the County’s standard economic development tax abatement, or as a stand-alone tax abatement. When an applicant seeks only a LEED Certif...

  13. Passive Catalytic Approach to Low Temperature NOx Emission Abatement...

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

    Catalytic Approach to Low Temperature NOx Emission Abatement Passive Catalytic Approach to Low Temperature NOx Emission Abatement Numerically evaluated and optimized proposed...

  14. NO{sub x} Emission Abatement Technologies

    SciTech Connect (OSTI)

    Goles, R

    1991-10-01

    The Hanford Waste Vitrification Plant (HWVP) will convert Hanford Site high-level liquid defense waste to a solid vitrified (glass) form suitable for final disposal in a geological repository. Future process flow sheet developments may establish a need for a NO, scrubber in the melter off-gas system. Consequently, a technology review has been conducted to identify and compare applicable off-gas processing alternatives should NO, emission abatement be required. Denitrification processes can be separated into two distinct categories, wet or dry, depending upon whether or not NO{sub x} is absorbed into an aqueous solution. The dry methods of removal are generally more efficient (>90%) than wet scrubbing approaches (>60%); however, most dry approaches are applicable only to NO,. Of the dry removal methods, selective catalytic reduction (SCR) using NH3 reductant and a hydrogen zeolite catalyst appears to be the most suitable technology for reducing HWVP NO{sub x} emissions should emission abatement be required. SCR is a relatively simple, well established technology that produces no secondary waste stream and is applicable to a wide range of NO{sub x} concentrations (500 to 30,000 ppm). This technology has been successfully applied to uranium dissolver exhaust streams and has, more recently, been tested and evaluated as the best available control technology for reducing NO, emissions at the Idaho National Engineering Laboratory's waste calciner facility, and at DOE's West Valley Demonstration Project. Unlike dry NO, scrubbing methods, the wet techniques are not specific to NO{sub x}, so they may support the process in more than one way. This is the only major advantage associated with wet technologies. Their disadvantages are that they are not highly efficient at low NO{sub x} concentrations, they produce a secondary waste stream, and they may require complex chemical support to reduce equipment size. Wet scrubbing of HWVP process NO{sub x} emissions is an option that is justifiable only if the technology is needed to eliminate other process emissions and scrubbing compatibility can be established.

  15. FRASER POLLUTION ABATEMENT OFFICE PROGRESS REPORT 1995 -1996

    E-Print Network [OSTI]

    #12;FRASER POLLUTION ABATEMENT OFFICE PROGRESS REPORT 1995 - 1996 & PROGRESS REPORT 1996 - 1997 DOE FRAP 1997-21 Prepared for: Environment Canada Environmental Protection Fraser Pollution Abatement North by Environment Canada under the Fraser River Action Plan through its Fraser Pollution Abatement Office

  16. SEAPORT LIQUID NATURAL GAS STUDY

    SciTech Connect (OSTI)

    COOK,Z.

    1999-02-01

    The Seaport Liquid Natural Gas Study has attempted to evaluate the potential for using LNG in a variety of heavy-duty vehicle and equipment applications at the Ports of Los Angeles and Oakland. Specifically, this analysis has focused on the handling and transport of containerized cargo to, from and within these two facilities. In terms of containerized cargo throughput, Los Angeles and Oakland are the second and sixth busiest ports in the US, respectively, and together handle nearly 4.5 million TEUs per year. At present, the landside handling and transportation of containerized cargo is heavily dependent on diesel-powered, heavy-duty vehicles and equipment, the utilization of which contributes significantly to the overall emissions impact of port-related activities. Emissions from diesel units have been the subject of increasing scrutiny and regulatory action, particularly in California. In the past two years alone, particulate matter from diesel exhaust has been listed as a toxic air contaminant by CAM, and major lawsuits have been filed against several of California's largest supermarket chains, alleging violation of Proposition 65 statutes in connection with diesel emissions from their distribution facilities. CARE3 has also indicated that it may take further regulatory action relating to the TAC listing. In spite of these developments and the very large diesel emissions associated with port operations, there has been little AFV penetration in these applications. Nearly all port operators interviewed by CALSTART expressed an awareness of the issues surrounding diesel use; however, none appeared to be taking proactive steps to address them. Furthermore, while a less controversial issue than emissions, the dominance of diesel fuel use in heavy-duty vehicles contributes to a continued reliance on imported fuels. The increasing concern regarding diesel use, and the concurrent lack of alternative fuel use and vigorous emissions reduction activity at the Ports provide both the backdrop and the impetus for this study.

  17. Hanford Site Asbestos Abatement Plan. Revision 1

    SciTech Connect (OSTI)

    Mewes, B.S.

    1993-09-01

    The Hanford Site Asbestos Abatement Plan (Plan) lists priorities for asbestos abatement activities to be conducted in Hanford Site facilities. The Plan is based on asbestos assessment information gathered in fiscal year 1989 that evaluated all Hanford Site facilities for the presence and condition of asbestos. Of those facilities evaluated, 414 contain asbestos-containing materials and are classified according to the potential risk of asbestos exposure to building personnel. The Plan requires that asbestos condition update reports be prepared for all affected facilities. The reporting is completed by the asbestos coordinator for each of the 414 affected facilities and transmitted to the Plan manager annually. The Plan manager uses this information to reprioritize future project lists. Currently, five facilities are determined to be Class Al, indicating a high potential for asbestos exposure. Class Al and B1 facilities are the highest priority for asbestos abatement. Abatement of the Class A1 and Bl facilities is scheduled through fiscal year 1997. Removal of asbestos in B1 facilities will reduce the risk for further Class ``A`` conditions to arise.

  18. Directed Technical Change and the Adoption of CO2 Abatement Technology: The Case of CO2 Capture and Storage

    E-Print Network [OSTI]

    Otto, Vincent M.

    This paper studies the cost effectiveness of combining traditional environmental policy, such as CO2 trading schemes, and technology policy that has aims of reducing the cost and speeding the adoption of CO2 abatement ...

  19. Case Study - Compressed Natural Gas Refuse Fleets

    SciTech Connect (OSTI)

    Laughlin, M; Burnham, A.

    2014-02-01

    This case study explores the use of heavy-duty refuse trucks fueled by compressed natural gas highlighting three fleets from very different types of organizations.

  20. Experimental Study of High-Z Gas Buffers in Gas-Filled ICF Engines...

    Office of Scientific and Technical Information (OSTI)

    Experimental Study of High-Z Gas Buffers in Gas-Filled ICF Engines Citation Details In-Document Search Title: Experimental Study of High-Z Gas Buffers in Gas-Filled ICF Engines ...

  1. Program Review, Workplace Inspections, Hazards Analysis And Abatement

    Broader source: Energy.gov [DOE]

    This document provides guidance information and suggested procedures for performing program review, workplace inspections, hazards analysis, and abatement, successfully at DOE Federal employee worksites.

  2. Air Emission Regulations for the Prevention, Abatement, and Control...

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

    Siting and Permitting Provider Department of Environmental Quality The Air Emission Regulation for the Prevention, Abatement and Control of Air Contaminants is relevant to all...

  3. Energy efficiency and the cost of GHG abatement: A comparison of bottom-up and hybrid models for the US

    E-Print Network [OSTI]

    Energy efficiency and the cost of GHG abatement: A comparison of bottom-up and hybrid models February 2011 Accepted 16 August 2011 Available online 17 September 2011 Keywords: Energy efficiency that a large potential for profitable energy efficiency exists in the US, and that substantial greenhouse gas

  4. CECO Abatement Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:Energy IncToolTurboAbatement

  5. Managing lead-based paint abatement wastes

    SciTech Connect (OSTI)

    Steele, N.L.C.

    1994-12-31

    Renovation, remodeling, demolition, and surface preparation for painting, in addition to specified lead abatement, are all activities that have the potential to produce hazardous wastes if a property was painted with lead-based paint. Lead-based paint was used on residential structures until 1978, when most residential uses were banned by the Consumer Products Safety Council. Prior to the 1950s, paints for residential uses may have contained up to 50% lead by weight. Today, commercial and military paints may still contain lead and can be used on non-residential structures. The lead content of residential paints is limited to 0.06% lead (by weight) in the dried film. This paper provides an overview of some of the information needed to properly manage lead-based paint abatement wastes. The issues covered in this paper include waste classification, generator status, treatment, and land disposal restrictions. The author assumes that the reader is familiar with the provision of the Health and Safety Code and the California Code of Regulations that pertain to generation and management of hazardous wastes. Citations provided herein do not constitute an exhaustive list of all the regulations with which a generator of hazardous waste must comply.

  6. Lead paint abatement -- A technological review

    SciTech Connect (OSTI)

    Draper, A.C. III; Kapuscik, D.

    1994-12-31

    Abatement of lead from various surfaces proves to be a rapidly developing industry. Removal techniques and effectiveness varies greatly with varying substrates (wood, concrete, steel, etc.) and surface configurations including interior/exterior considerations, habitability and anticipated retrofit. Numerous technologies advances, and/or adaptations of long accepted removal techniques have recently emerged. Some of the more commonly used removal procedures including vacuum blasting, chemical stripping, scarifiers, grinders, sanders, etc. will be reviewed. Specific emphasis will be placed upon mode of application, positive and negative environmental aspects, and varying emissions generated. Personnel sampling data will be discussed with respect to associated personal protective equipment impact to derive the most cost productive environmentally conscious alternatives.

  7. Experimental studies on a natural gas vehicle

    SciTech Connect (OSTI)

    Ishii, Mitsunori; Ishizawa, Shizuo; Inada, Eiji; Idoguchi, Ryuichi; Sekiba, Toru

    1994-10-01

    This paper presents the results of several studies conducted on a natural gas vehicle. In one study of engine-out emissions performance, the exhaust emissions of the CNG engine were lower than those of the base gasoline engine. In another study of the conversion characteristics of three-way catalysts, it was found that the conversion efficiency of total hydrocarbons (THCs) was much lower in the lean-mixture region for the NGV. The reduced efficiency was traced to lower conversion and poor reactivity of low-end hydrocarbons and to a higher concentration of H2O. 12 refs., 20 figs., 2 tabs.

  8. Short-term CO? abatement in the European power sector

    E-Print Network [OSTI]

    Delarue, Erik D.

    2008-01-01

    This paper focuses on the possibilities for short term abatement in response to a CO2 price through fuel switching in the European power sector. The model E-Simulate is used to simulate the electricity generation in Europe ...

  9. Abatement of perfluorocompounds and chlorofluorocarbons using surface wave plasma technology 

    E-Print Network [OSTI]

    Frantzen, Michelle E. Gunn

    2007-04-25

    Application of surface wave plasma technology for effective abatement of environmentally harmful gases such as perfluorocompounds and chlorofluorocarbons is investigated. Perfluorocompounds (PFCs) are gases that contribute to forced global warming...

  10. Design of a Plasma Abatement System for Perfluoronated Compounds 

    E-Print Network [OSTI]

    Butler, Matthew

    2011-08-08

    The plasma abatement system co-developed by Rf Environmental, Inc. and Texas A & M University has been effective at destroying the global warming gases CF4 and C4F8. The destruction of greenhouse gases, specifically perfluorocompounds...

  11. Modelling air pollution abatement in deep street canyons by means of air scrubbers

    E-Print Network [OSTI]

    De Giovanni, Marina; Avveduto, Alessandro; Pace, Lorenzo; Salisburgo, Cesare Dari; Giammaria, Franco; Monaco, Alessio; Spanto, Giuseppe; Tripodi, Paolo

    2015-01-01

    Deep street canyons are characterized by weak ventilation and recirculation of air. In such environment, the exposure to particulate matter and other air pollutants is enhanced, with a consequent worsening of both safety and health. The main solution adopted by the international community is aimed at the reduction of the emissions. In this theoretical study, we test a new solution: the removal of air pollutants close to their sources by a network of Air Pollution Abatement (APA) devices. The APA technology depletes gaseous and particulate air pollutants by a portable and low-consuming scrubbing system, that mimics the processes of wet and dry deposition. We estimate the potential pollutant abatement efficacy of a single absorber by Computational Fluid Dynamics (CFD) method. The presence of the scrubber effectively creates an additional sink at the bottom of the canyon, accelerating its cleaning process by up to 70%, when an almost perfect scrubber (90% efficiency) is simulated. The efficacy of absorber is not...

  12. Gas-phase electron diffraction studies of unstable molecules 

    E-Print Network [OSTI]

    Noble-Eddy, Robert

    2009-01-01

    Gas-phase electron diffraction (GED) is the only viable technique for the accurate structural study of gas-phase molecules that contain more than ~10 atoms. Recent advances in Edinburgh have made it possible to study ...

  13. Abatement of Air Pollution: Greenhouse Gas Emissions Offset Projects...

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

    Projects that either capture and destroy landfill methane, avoid sulfur hexafluoride emissions, sequester carbon through afforestation, provide end-use energy efficiency, or avoid...

  14. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Marnay, Chris

    2010-01-01

    2020 S00 S/t of carbon mpared to CHP, PV a n d solar t h e rm a l as options in DE R-CAM only CHP as optioninDER-CAM CHP Capacity: 2.25 GW CHP Electricity: 10.05 TWh

  15. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    and may also be charged by CHP systems during off-peak andDarrow, K et al. (2009), “CHP Market Assessment”, Integratedwith combined heat and power (CHP) may be implemented within

  16. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    Modeling with Combined Heat and Power Applications”,Committee, Combined Heat and Power Workshop, CaliforniaJuly 23, 2009 Combined Heat and Power Installation

  17. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    Department of Energy research project. To show the impact ofResearch, Development, and Demonstration Projects”, IEEE power & energy

  18. Abatement of Air Pollution: Greenhouse Gas Emissions Offset Projects (Connecticut)

    Broader source: Energy.gov [DOE]

    Projects that either capture and destroy landfill methane, avoid sulfur hexafluoride emissions, sequester carbon through afforestation, provide end-use energy efficiency, or avoid methane emissions...

  19. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    N. et al. , (2007), “Microgrids, An Overview of Ongoingof Commercial-Building Microgrids,” IEEE Transactions onsuccessful deployment of microgrids will depend heavily on

  20. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    adoption and reduced PV adoption, but ICEs are still veryindicate that PV and electric storage adoption can competeindicate that PV and electric storage adoption can compete

  1. Abating Greenhouse Gas Emissions through Cash-for-Clunker Programs

    E-Print Network [OSTI]

    Allen, Alexander; Carpenter, Rachel; Morrison, Geoff

    2009-01-01

    by multiplying the passenger car emissions estimate by the36 MPG new car to achieve the same GHG emissions reduction.U.S. (CARS) Stimulate auto industry and reduce GHG emissions

  2. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    and does consider CHP in commercial buildings as an option.for CHP installations are office buildings, hospitals,building sector can install 1.4 GW of economic CHP capacity

  3. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    and not only by PV / solar thermal systems. To satisfy theheat exchangers, solar thermal collectors, absorptionphotovoltaics and solar thermal collectors; • electrical

  4. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    Effect of Heat and Electricity Storage and Reliability onsand_doc/2001/012022p.pdf). Electricity Storage Association,Symons and Butler 2001, Electricity Storage Association, own

  5. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    photovoltaics and solar thermal collectors; • electricalexchangers, solar thermal collectors, absorption chillers,

  6. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    exchangers, solar thermal collectors, absorption chillers,photovoltaics and solar thermal collectors; • electrical

  7. Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings

    E-Print Network [OSTI]

    Stadler, Michael

    2010-01-01

    lead acid absorption solar photo- storage batteries chillersolar thermal collectors, absorption chillers, and storageand solar thermal collectors; • electrical storage, flow

  8. Regional Analysis of Building Distributed Energy Costs and CO2 Abatement: A U.S. - China Comparison

    E-Print Network [OSTI]

    Mendes, Goncalo

    2014-01-01

    Analysis of Building Energy Costs and CO 2 Emissions, ACEEEDistributed   Energy  Costs  and  CO 2  Abatement:     A  of Building Distributed Energy Costs and CO 2 Abatement: A

  9. Harris County- Green Building Tax Abatement for New Commercial Construction (Texas)

    Broader source: Energy.gov [DOE]

    In 2008, the Harris County Commissioners Court adopted guidelines for partial tax abatements for new construction of commercial LEED-certified buildings. The tax abatement was renewed in 2009, and...

  10. Engineering analysis and economic impacts of air pollution abatement strategies for cotton gins 

    E-Print Network [OSTI]

    Ramaiyer, Anantharaman

    1997-01-01

    additional air pollution abatement strategies using combinations of cyclones, rotary drum filters, and baffle type pre-separators have been defined. Procedures to estimate costs of equipment and emission factors for various abatement equipment are described...

  11. Report on Abatement Activities Related to Agriculture and Waste Management

    E-Print Network [OSTI]

    #12;Report on Abatement Activities Related to Agriculture and Waste Management in the Lower Fraser Guidelines for Producers 9 2.3 Best Agricultural Waste Management Plans (BAWMPs) 9 3.0 AGRICULTURAL PRACTICES Agricultural Waste management Zones Used in the management of Agricultural Wastes in the Lower Fraser Valley

  12. Parametric Study of Gas Turbine Film-Cooling 

    E-Print Network [OSTI]

    Liu, Kevin

    2012-10-19

    OF GAS TURBINE FILM-COOLING A Dissertation by KEVIN LIU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2012 Major... Subject: Mechanical Engineering Parametric Study of Gas Turbine Blade Film-Cooling Copyright 2012 Kevin Liu PARAMETRIC STUDY OF GAS TURBINE FILM-COOLING A Dissertation by KEVIN LIU Submitted...

  13. Cost of lead-based-paint abatement in public housing. Volume 2. Appendix C-F

    SciTech Connect (OSTI)

    Not Available

    1986-07-01

    This study provides data on lead incidence and the estimated costs of abating lead hazards in public housing at several possible threshold levels of lead concentration in applied paint. The data were collected at a sample of family projects by cooperating Lead Paint Poisoning Prevention Programs using data collection forms designed for the study. National estimates are provided based on the assumption that the construction year of a dwelling or building is the only characteristic related to lead incidence. The estimates are provided for all family dwelling units, defined as those of two-bedrooms or larger; for all buildings in family projects; and for site-wide facilities in family projects.

  14. Cost of lead-based-paint abatement in public housing. Volume 1

    SciTech Connect (OSTI)

    Wallace, J.E.

    1986-07-01

    This study provides data on lead incidence and the estimated costs of abating lead hazards in public housing at several possible threshold levels of lead concentration in applied paint. The data were collected at a sample of family projects by cooperating Lead Paint Poisoning Prevention Programs using data collection forms designed for the study. National estimates are provided based on the assumption that the construction year of a dwelling or building is the only characteristic related to lead incidence. The estimates are provided for all family dwelling units, defined as those of two-bedrooms or larger; for all buildings in family projects; and for site-wide facilities in family projects.

  15. Applications of Modern Pyrolysis Gas Chromatography for the Study...

    Office of Scientific and Technical Information (OSTI)

    Book: Applications of Modern Pyrolysis Gas Chromatography for the Study of Degradation and Aging in Complex Silicone Elastomers Citation Details In-Document Search Title:...

  16. Building Commissioning: A Golden Opportunity for Reducing Energy Costs and Greenhouse-gas Emissions

    E-Print Network [OSTI]

    Mills, Evan

    2010-01-01

    2007. “Reducing U.S. Greenhouse Gas Emissions: How Much atDepartment of Energy. 2009. “Greenhouse gas abatement in thefor Reducing Energy Costs and Greenhouse Gas Emissions Evan

  17. Catalysts for lean burn engine exhaust abatement

    DOE Patents [OSTI]

    Ott, Kevin C. (Los Alamos, NM); Clark, Noline C. (Jemez Springs, NM); Paffett, Mark T. (Los Alamos, NM)

    2003-01-01

    The present invention provides a process for catalytically reducing nitrogen oxides in an exhaust gas stream containing nitrogen oxides and a reductant material by contacting the gas stream under conditions effective to catalytically reduce the nitrogen oxides with a catalyst comprising a aluminum-silicate type material and a minor amount of a metal, the catalyst characterized as having sufficient catalytic activity so as to reduce the nitrogen oxides by at least 60 percent under temperatures within the range of from about 200.degree. C. to about 400.degree. C.

  18. Study the gas sensing properties of boron nitride nanosheets

    SciTech Connect (OSTI)

    Sajjad, Muhammad; Feng, Peter, E-mail: p.feng@upr.edu

    2014-01-01

    Graphical abstract: - Highlights: • We synthesized boron nitride nanosheets (BNNSs) on silicon substrate. • We analyzed gas sensing properties of BNNSs-based gas-sensor device. • CH{sub 4} gas is used to measure gas-sensing properties of the device. • Quick response and recovery time of the device is recorded. • BNNSs showed excellent sensitivity to the working gas. - Abstract: In the present communication, we report on the synthesis of boron nitride nanosheets (BNNSs) and study of their gas sensing properties. BNNSs are synthesized by irradiating pyrolytic hexagonal boron nitride (h-BN) target using CO{sub 2} laser pulses. High resolution transmission electron microscopic measurements (HRTEM) revealed 2-dientional honeycomb crystal lattice structure of BNNSs. HRTEM, electron diffraction, XRD and Raman scattering measurements clearly identified h-BN. Gas sensing properties of synthesized BNNSs were analyzed with prototype gas sensor using methane as working gas. A systematic response curve of the sensor is recorded in each cycle of gas “in” and “out”; suggesting excellent sensitivity and high performance of BNNSs-based gas-sensor.

  19. HUD lead-based-paint abatement demonstration (FHA)

    SciTech Connect (OSTI)

    Not Available

    1991-08-01

    The toxic effects of lead on human beings, and particularly on young children, have been known for many years. Amendments to the Lead-Based Paint Poisoning Prevention Act (LPPPA) in 1987 and 1988 required the U.S. Department of Housing and Urban Development (HUD) to undertake a lead-based paint abatement demonstration program. The overall objective of the demonstration was to 'utilize a sufficient number of abatement methods in a sufficient number of areas and circumstances to demonstrate their relative cost-effectiveness...' One component of the demonstration was conducted in HUD-owned, vacant, single-family properties and was completed in the fall of 1990. A public housing component is expected to be completed in 1991. The report describes the objectives, research design, experience and findings of the completed component, which is generally known as the FHA demonstration, named after the Federal Housing Administration, which held title to the houses.

  20. Nitrogen oxide abatement by distributed fuel addition

    SciTech Connect (OSTI)

    Wendt, J.O.L.; Mereb, J.B.

    1991-09-20

    Reburning is examined as a means of NO{sub x} destruction in a 17 kW down-fired pulverized coal combustor. In reburning, a secondary fuel is introduced downstream of the primary flame to produce a reducing zone, favorable to NO destruction, and air is introduced further downstream to complete the combustion. Emphasis is on natural gas reburning and a bituminous coal primary flame. A parametric examination of reburning employing a statistical experimental design, is conducted, complemented by detailed experiments. Mechanisms governing the inter-conversion of nitrogenous species in the fuel rich reburn zone is explored. The effect of reburning on N{sub 2}O emissions, the effect of primary flame mode (premixed and diffusion) and the effect of distributing the reburning fuel, are also investigated.

  1. The liquefied natural gas pipeline: a system study 

    E-Print Network [OSTI]

    Hazel, Thomas Ray

    1972-01-01

    THE LIQUEFIED NATURAL GAS PIPELINE: A SYSTEM STUDY A Thesis by THOMAS RAY HAZEL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1972 Major Subject...: Mechanical Engineering THE LIQUEFIED NATURAL GAS PIPELINE: A SYSTEM STUDY A Thesis by THOMAS RAY HAZEL Approved as to style and content by: Chairman o 'Committee) (Head of Department) (Member) (Member) (Member) (Member) (Member) May 1972 ABSTRACT...

  2. A study of water driven oil encroachment into gas caps 

    E-Print Network [OSTI]

    Ritch, Harlan J

    1958-01-01

    A STUDY OF WATER DRIVEN OIL ENCROACHMENT INTO GAS CAPS LIBRARY A S I COLLEGE OF TEXAS A Thesis By HARLAN J. RITCH ~ ~ ~ Submitted to the Graduate School oi' the Agricultural and Mechanical College of Texas in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May, 1958 Major Subject: Petroleum Engineering A STUDY OF WATER DRIVEN OIL ENCROACHMENT INTO GAS CAPS A Thesis By HARLAN J. RITCH Approved as to style and content by: hairxnan of Coxnxnittee) (Head...

  3. North American Natural Gas Markets: Selected technical studies

    SciTech Connect (OSTI)

    Huntington, H.G.; Schuler, G.E.

    1989-04-01

    The Energy Modeling Forum (EMF) was established in 1976 at Stanford University to provide a structural framework within which energy experts, analysts, and policymakers could meet to improve their understanding of critical energy problems. The ninth EMF study, North American Natural Gas Markets, was conducted by a working group comprised of leading natural gas analysts and decision-makers from government, private companies, universities, and research and consulting organizations. The EMF 9 working group met five times from October 1986 through June 1988 to discuss key issues and analyze natural gas markets. This third volume includes technical papers that support many of the conclusions discussed in the EMF 9 summary report (Volume 1) and full working group report (Volume 2). These papers discuss the results from the individual models as well as some nonmodeling analysis related to US natural gas imports and industrial natural gas demand. Individual papers have been processed separately for inclusion in the Energy Science and Technology Database.

  4. North American Natural Gas Markets: Selected technical studies. Volume 3

    SciTech Connect (OSTI)

    Huntington, H.G.; Schuler, G.E.

    1989-04-01

    The Energy Modeling Forum (EMF) was established in 1976 at Stanford University to provide a structural framework within which energy experts, analysts, and policymakers could meet to improve their understanding of critical energy problems. The ninth EMF study, North American Natural Gas Markets, was conducted by a working group comprised of leading natural gas analysts and decision-makers from government, private companies, universities, and research and consulting organizations. The EMF 9 working group met five times from October 1986 through June 1988 to discuss key issues and analyze natural gas markets. This third volume includes technical papers that support many of the conclusions discussed in the EMF 9 summary report (Volume 1) and full working group report (Volume 2). These papers discuss the results from the individual models as well as some nonmodeling analysis related to US natural gas imports and industrial natural gas demand. Individual papers have been processed separately for inclusion in the Energy Science and Technology Database.

  5. Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

    SciTech Connect (OSTI)

    Loar, J.M.; Adams, S.M.; Allison, L.J.; Blaylock, B.G.; Boston, H.L.; Huston, M.A.; Kimmel, B.L.; Smith, J.G.; Southworth, G.R.; Stewart, A.J.; Walton, B.T.; Kitchings, J.T.; Olsen, C.R.

    1991-09-01

    On April 1, 1986, a National Pollutant Discharge Elimination System (NPDES) permit was issued for the Oak Ridge National Laboratory (ORNL) (EPA 1986). As specified in Part 3: Special Conditions (Item H) of the permit, a plan for biological monitoring of the Clinch River, White Oak Creek (WOC), Northwest Tributary (NWT) of WOC, Melton Branch (MB), Fifth Creek, and First Creek shall be submitted for approval to the US Environmental Protection Agency (EPA) and the Tennessee Department of Health and Environment (TDHE) within 90 days of the effective date of the permit. The plan, which is referred to in Part 3 (H) of the permit as the Biological Monitoring Plan and Abatement Program (BMPAP), describes characterization monitoring studies to be conducted for the duration of the permit (5 years). In order to be consistent with the terminology used for the Biological Monitoring and Abatement Programs for the Oak Ridge Y-12 Plan and the Oak Ridge K-25 Plant, BMPAP will subsequently be referred to as the Biological Monitoring and Abatement Program (BMAP). The proposed BMAP outlined in this document is based on preliminary discussions held on December 9, 1985, between staff of Martin Marietta Energy Systems, Inc. (ORNL and Central Management), the US Department of Energy (DOE), EPA, and TDHE. 232 refs., 11 figs., 7 tabs.

  6. Gas in developing countries: Volume 2, Country studies

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    This volume contains detailed case-studies of the history and prospects for natural gas utilization in eight developing countries: Argentina, Egypt, Malaysia, Nigeria, Pakistan, Tanzania, Thailand and Tunisia. All of these countries have been visited by members of the research team, with the exception of Pakistan. Running through all the case-histories is the importance of defining a clear market for the gas. In some cases this can prove remarkably difficult, especially when the oil price is relatively low. In other cases a market does exist, but is very limited in relation to the size of available reserves. The other theme which recurs over and over again is the importance of the relationship between the government and its agencies, and the foreign oil companies which are involved in exploration and development of gas reserves. These two issues are addressed in detail in each case study. But it is also the case that each country highlights specific aspects of the gas story.

  7. Review of H2S Abatement in Geothermal Plants and Laboratory Scale Design of

    E-Print Network [OSTI]

    Karlsson, Brynjar

    Review of H2S Abatement in Geothermal Plants and Laboratory Scale Design of Tray Plate Distillation Engineering ­ ISE December 2013 #12;ii Review of H2S Abatement Methods in Geothermal Plants and Laboratory having significantly lower emissions in comparison to traditional fossil fuel plants, geothermal power

  8. Heterogeneous capital stocks and the optimal timing for CO2 abatement

    E-Print Network [OSTI]

    Heterogeneous capital stocks and the optimal timing for CO2 abatement Mark Jaccard *, Nic Rivers assumptions, an early start at CO2 abatement for long-lived capital stocks would be economically optimal for achieving long run targets for atmospheric CO2 concentrations. If the target is a specific concentration

  9. Unconventional Gas Market Study 2018 | OpenEI Community

    Open Energy Info (EERE)

    technical recoverable shale gas reserves, but currently does not hold any shale gas production. However, the growth is expected to commence by 2015. Growth of Shale Gas, Tight...

  10. Studies of vertical annular gas-liquid flows

    SciTech Connect (OSTI)

    Zabaras, G.J.

    1985-01-01

    Three types of vertical flowing films were studied. These are the free falling film, the falling film in the presence of countercurrent gas flow, and the upward moving film due to concurrent flow of gas. An experimental program was performed based on a new electrochemical method for the dynamic measurement of the magnitude and the direction of the wall shear stress, and on a conductance wire probe for the simultaneous measurement of the film thickness. Pressure drop was measured over a short distance with a differential pressure transducer. The data obtained for the free falling film reveal a strong length effect on the wavy-film structure. The measured variation of the wall shear stress along a wave suggests that a mixing vortex exists in the wave front followed by the development of a hydrodynamic boundary layer in the wave back. Analysis of the data taken with counter current flow of gas shows that even at the flooding condition, the film flow is controlled by downward wave motion. Measured wall shear stress was found to be upward directed and decreasing in magnitude with increasing gas rate. Analyses of the upward film flow data in a variety of ways suggest that, at low gas rates, the motion of the interface is controlled by a process of switching between possible steady states of the system. This condition is usually designated as churn flow but bridging of the liquid across the pipe as associated with churning does not occur.

  11. General Equilibrium, Electricity Generation Technologies and the Cost of Carbon Abatement

    E-Print Network [OSTI]

    Lanz, Bruno, 1980-

    Electricity generation is a major contributor to carbon dioxide emissions, and a key determinant of abatement costs. Ex-ante assessments of carbon policies mainly rely on either of two modeling paradigms: (i) partial ...

  12. CO2 Abatement in the UK Power Sector: Evidence from the EU ETS Trial Period

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2008-01-01

    This paper provides an empirical assessment of CO2 emissions abatement in the UK power sector during the trial period of the EU ETS. Using an econometrically estimated model of fuel switching, it separates the impacts of ...

  13. Analysis of post-Kyoto CO? emissions trading using marginal abatement curves

    E-Print Network [OSTI]

    Ellerman, A. Denny.; Decaux, Annelène.

    Marginal abatement curves (MACs) are often used heuristically to demonstrate the advantages of emissions trading. In this paper, the authors derive MACs from EPPA, the MIT Joint Program's computable general equilibrium ...

  14. What Governmental Agencies Should Look for in a Mosquito Abatement Company 

    E-Print Network [OSTI]

    Renchie, Don L.

    2005-10-06

    mosquitoes around their individual properties to increase the overall effectiveness of the abatement program. Habitat modification and sanitation are two of the most effective means of controlling mosquitoes. What Governmental Agencies Should Look...

  15. Design of aircraft noise abatement approach procedures for near-term implementation

    E-Print Network [OSTI]

    Ho, Nhut Tan, 1974-

    2005-01-01

    Advanced aircraft noise abatement approach procedures -- characterized by decelerating, continuous descent approaches using idle thrust, and enabled by flight guidance technologies such as GPS and FMS -- have been shown ...

  16. CO? abatement by multi-fueled electric utilities: an analysis based on Japanese data

    E-Print Network [OSTI]

    Ellerman, A. Denny.; Tsukada, Natsuki.

    Multi-fueled electric utilities are commonly seen as offering relatively greater opportunities for reasonably priced carbon abatement through changes in the dispatch of generating units from capacity using high emission ...

  17. New York City- Property Tax Abatement for Photovoltaic (PV) Equipment Expenditures

    Office of Energy Efficiency and Renewable Energy (EERE)

    In August 2008 the State of New York enacted legislation allowing a property tax abatement for photovoltaic (PV) system expenditures made on buildings located in cities with a population of 1 mil...

  18. HUD lead-based-paint abatement demonstration (FHA). Volume 2. Appendices i-p

    SciTech Connect (OSTI)

    Not Available

    1991-08-01

    The document is volume 2 of the two-volume appendices accompanying 'The HUD Lead-Based Paint Abatement Demonstration' report. The document contains paint testing, abatement, cleanup and disposal guidelines; the part NIOSH plays in the project; health and safety training manual; tables from Tractor Technology Resources; list of manufacturers; quality assurance project plan for collection and analysis of air and wipe samples; and release of housing unit from the demonstration.

  19. HUD lead-based-paint abatement demonstration (FHA). Volume 1. Appendices a-h

    SciTech Connect (OSTI)

    Not Available

    1991-08-01

    The document is Volume 1 of the two-volume appendices accompanying 'The HUD Lead-Based Paint Abatement Demonstration' report. The document contains contract documents; management and work plan narrative in support of HUD 441.1-baseline plan; research design of the lead based paint abatement demonstration; field detection of lead; quality assurance plan of detection of lead; and different forms used in recording data.

  20. Experimental Characterization and Molecular Study of Natural Gas Mixtures 

    E-Print Network [OSTI]

    Cristancho Blanco, Diego Edison

    2011-08-08

    stream_source_info CRISTANCHO-BLANCO-DISSERTATION.pdf.txt stream_content_type text/plain stream_size 223298 Content-Encoding ISO-8859-1 stream_name CRISTANCHO-BLANCO-DISSERTATION.pdf.txt Content-Type text/plain; charset=ISO-8859...-1 EXPERIMENTAL CHARACTERIZATION AND MOLECULAR STUDY OF NATURAL GAS MIXTURES A Dissertation by DIEGO EDISON CRISTANCHO BLANCO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  1. Low-cost household paint abatement to reduce children's blood lead levels

    SciTech Connect (OSTI)

    Taha, T.; Kanarek, M.S.; Schultz, B.D.; Murphy, A.

    1999-11-01

    The purpose was to examine the effectiveness of low-cost abatement on children's blood lead levels. Blood lead was analyzed before and after abatement in 37 homes of children under 7 years old with initial blood lead levels of 25--44 {micro}g/dL. Ninety-five percent of homes were built before 1950. Abatement methods used were wet-scraping and repainting deteriorated surfaces and wrapping window wells with aluminum or vinyl. A control group was retrospectively selected. Control children were under 7 years old, had initial blood lead levels of 25--44 {micro}g/dL and a follow-up level at least 28 days afterward, and did not have abatements performed in their homes between blood lead levels. After abatement, statistically significant declines occurred in the intervention children's blood lead levels. The mean decline was 22%, 1 to 6 months after treatment. After adjustment for seasonality and child's age, the mean decline was 6.0 {micro}g/dL, or 18%. The control children's blood levels did not decline significantly. There was a mean decline of 0.25 {micro}g/dL, or 0.39%. After adjustment for seasonality and age, the mean decline for control children was 1.6 {micro}g/dL, or 1.8%. Low-cost abatement and education are effective short-term interim controls.

  2. Seventy-seventh annual convention Gas Processors Association: Proceedings

    SciTech Connect (OSTI)

    NONE

    1998-12-31

    The 42 papers in these proceedings discuss the following topics: gas hydrates; gas transport; emission abatement; acid gas disposal; control of processing plants; NGL and LPG recovery; marketing; underground storage; NGL fractionation; and plant optimization. Papers have been processed separately for inclusion on the data base.

  3. Studies related to gas metering accuracy in natural gas vehicle filling stations

    SciTech Connect (OSTI)

    Vradis, G.; Otugen, V.; Girlea, F. [Polytechnic Univ., Brooklyn, NY (United States)

    1995-12-31

    The present study concentrates on the identification of a parameters affecting the metering accuracy in Natural Gas Vehicle (NGV) fueling stations. The results of an on-site monitoring program designed to establish the effect of vibrations and pressure pulsations on the operation of mass flow and rotary positive displacement meters are presented. It is established that pressure fluctuations due to mean flow pulsations are weak in the immediate vicinity of the meters and, based on available experimental results, are not expected to have any impact on meter accuracy. However, vibrations in the operating environment of coriolis mass flow meters are shown to have potentially strong influence on their accuracy. Also, an analysis of available experimental data is performed to identify the source of instabilities observed in the output signal of coriolis mass flow meters. It is shown that such instabilities could be the result of hydrodynamic phenomena that need to be studied further.

  4. Study of the vapor-gas front of a variable conductance thermosyphon using advanced optical techniques 

    E-Print Network [OSTI]

    Doerksen, Glenn Robert

    1993-01-01

    The influence of noncondensable gases on the operation of a thermosyphon was studied experimentally. The operating characteristics were studied while varying the power input, gas quantity, and gas type. The results were compared with existing...

  5. Study of Multi-scale Transport Phenomena in Tight Gas and Shale Gas Reservoir Systems 

    E-Print Network [OSTI]

    Freeman, Craig Matthew

    2013-11-25

    . These challenges have impeded efficient economic development of shale resources. New fundamental insights and tools are needed to improve the state of shale gas development. Few attempts have been made to model the compositional behavior of fluids in shale gas...

  6. Contributed papers Study of gas-fluidization dynamics with laser-polarized 129

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    commercial fluidized beds operate in the bubbling fluidization regime, in which gas-filled particle, Amherst, MA 01003, USA Abstract We report initial NMR studies of gas dynamics in a particle bed fluidized characteristics: gas exchange between the bubble and emulsion phases and the gas velocity distribution in the bed

  7. Numerical Simulation and Multiple Realizations for Sensitivity Study of Shale Gas Reservoir

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 141058 Numerical Simulation and Multiple Realizations for Sensitivity Study of Shale Gas. The abstract must contain conspicuous acknowledgment of SPE copyright. Abstract Shale gas in the United States the largest conventional gas accumulations in the world. Shale gas success is directly the result

  8. First annual report on the Biological Monitoring and Abatement Program at Oak Ridge National Laboratory

    SciTech Connect (OSTI)

    Loar, J.M.; Adams, S.M.; Blaylock, B.G.; Boston, H.L.; Frank, M.L.; Garten, C.T.; Houston, M.A.; Kimmel, B.L.; Ryon, M.G.; Smith, J.G.; Southworth, G.R.; Stewart, A.J.; Walton, B.T.; Berry, J.B.; Talmage, S.S.; Amano, H.; Jimenez, B.D.; Kitchings, J.T.; Meyers-Schoene, L.; Mohrbacher, D.A.; Olsen, C.R.

    1992-08-01

    As a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC); selected tributaries of WOC, including Fifth Creek, First Creek, Melton Branch, and Northwest Tributary; and the Clinch River. BMAP consists of seven major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs on-site and the aquatic environs off-site. These tasks are (1) toxicity monitoring; (2) bioaccumulation monitoring of nonradiological contaminants in aquatic biota; (3) biological indicator studies; (4) instream ecological monitoring; (5) assessment of contaminants in the terrestrial environment; (6) radioecology of WOC and White Oak Lake (WOL); and (7) contaminant transport, distribution, and fate in the WOC embayment-Clinch River-Watts Bar Reservoir system. This document, the first of a series of annual reports presenting the results of BMAP, describes studies that were conducted from March through December 1986.

  9. Impact Studies Using a One Stage Light Gas Gun

    E-Print Network [OSTI]

    Jorge Carmona; Mike Cook; Jimmy Schmoke; Katie Harper; Jerry Reay; Lorin Matthews; Truell Hyde

    2004-01-29

    The Center for Astrophysics,Space Physics, and Engineering Research (CASPER) has completed construction and calibration of a Light Gas Gun (LGG), which is used for low velocity impact studies. At geosynchronous orbit, space debris can impact commercial satellites at velocities of 500 m/s [1] reducing their useful lifetime. Additionally, there is an ever-increasing population of abandoned nonoperational satellites and related debris in these orbits [2]. Therefore, it is important to clearly understand the physics behind how such collisions can cause structural damage. This is most easily determined by measuring the damage incurred on representative material exposed to test collisions in the laboratory. Data collected in this manner will not only help illuminate the shock physics involved but can also aid in providing methods for designing advanced shielding for satellites.

  10. Experimental Study of High-Z Gas Buffers in Gas-Filled ICF Engines...

    Office of Scientific and Technical Information (OSTI)

    and energetic ions released during target detonation. To reduce the uncertainties of cooling and beamtarget propagation through such gas-filled chambers, we present a pulsed...

  11. ARE RADON GAS MEASUREMENTS ADEQUATE FOR EPIDEMIOLOGICAL STUDIES AND CASE CONTROL

    E-Print Network [OSTI]

    Yu, Peter K.N.

    ARE RADON GAS MEASUREMENTS ADEQUATE FOR EPIDEMIOLOGICAL STUDIES AND CASE CONTROL STUDIES OF RADON 2004 The lung dose derived from radon is not attributed to the radon gas itself, but instead to its of the radon risk, the excess number of cancers are related to the radon gas exposure, and not to the radon

  12. Electronic copy available at: http://ssrn.com/abstract=1558744 The optimal portfolio of emissions abatement and

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Electronic copy available at: http://ssrn.com/abstract=1558744 The optimal portfolio of emissions abatement and low-carbon R&D depends on the expected availability of negative emission technologies Derek M optimal portfolio of emissions abatement and low-carbon R&D depends on the expected availability

  13. Health and environmental outcomes of traditional and modified practices for abatement of residential lead-based paint

    SciTech Connect (OSTI)

    Farfel, M.R.; Chisolm, J.J. Jr. )

    1990-10-01

    We evaluated traditional and modified practices for abating lead-based paint in homes of children with blood-lead concentrations (PbB) greater than 1.4 mumol/L (greater than 29 micrograms/dl). Traditional abatement resulted in acute increases in: (1) lead contaminated house dust (generally 3 to 6-fold over pre-abatement levels, but at abated sites typically 10 to 100-fold); and (2) the PbBs of nearly half of the occupant children. Modified practices represented modest short-term improvement compared to traditional practices but were also inadequate. By six months, it was clear that neither form of abatement resulted in long-term reductions of PbB or house dust lead levels, leaving children at continued risk of excessive exposure to lead and permanent adverse neurobehavioral effects. Windows were found to be high sources of lead contaminated house dust. Recommendations are made for improved abatement practices including more complete abatement of window units and more effective clean-up to remove lead-bearing dust. Thirteen million US children live in lead-painted dwellings. Research is needed to identify abatement strategies that will be practical and well suited to the current understanding of low-level lead toxicity.

  14. Electronic copy available at: http://ssrn.com/abstract=1558744 The Role of Abatement, Technology Policies, and

    E-Print Network [OSTI]

    Kammen, Daniel M.

    role of abatement, technology policies, and negative emission strategies in achieving climate goalsElectronic copy available at: http://ssrn.com/abstract=1558744 The Role of Abatement, Technology Policies, and Negative Emission Strategies in Achieving Climate Goals Derek M. Lemoine*, Sabine Fuss, Jana

  15. Study of gas flow dynamics in porous and granular media with laser-polarized ¹²?Xe NMR

    E-Print Network [OSTI]

    Wang, Ruopeng, 1972-

    2005-01-01

    This thesis presents Nuclear Magnetic Resonance (NMR) studies of gas flow dynamics in porous and granular media by using laser-polarized ¹²?Xe . Two different physical processes, the gas transport in porous rock cores and ...

  16. Thermal degradation of deoxybenzoin polymers studied by pyrolysis-gas chromatography/mass spectrometry

    E-Print Network [OSTI]

    Thermal degradation of deoxybenzoin polymers studied by pyrolysis-gas chromatography Available online 29 March 2008 Keywords: Flame-retardant polymers Thermal degradation Pyrolysis by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). The polymers were synthesized

  17. Experimental and simulation studies of water-alternating-enriched gas injection for San Francisco Field, Colombia 

    E-Print Network [OSTI]

    Soto Tavera, Claudia Patricia

    2003-01-01

    This thesis presents a complete investigation involving experimental and compositional reservoir simulation studies into enriched gas injection as a method to enhance oil recovery from the San Francisco field in Colombia. In enriched gas floods...

  18. NETL Gas Migration Study to Advance Understanding of Responsible...

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

    drinking water sources. Hydraulic fracturing is a process for producing oil and natural gas from shale formations. It uses water, sand and chemical additives pumped under high...

  19. A Study of Formation and Dissociation of Gas Hydrate 

    E-Print Network [OSTI]

    Badakhshan Raz, Sadegh

    2012-07-16

    The estimation of gas hydrate volume in closed systems such as pipelines during shut-in time has a great industrial importance. A method is presented to estimate the volume of formed or decomposed gas hydrate in closed systems. The method was used...

  20. Study Guide 2012 for Full-Time Students Master of Oil and Gas Engineering

    E-Print Network [OSTI]

    Tobar, Michael

    Study Guide 2012 for Full-Time Students Master of Oil and Gas Engineering Graduate Diploma in Oil Oil & Gas Economics PETR8503 Reservoir Engineering Possible Options (example only) PETR8510 Petroleum freedom to choose units from the available options listed in the Master of Oil and Gas Engineering Table

  1. Study Guide 2010 for Full-Time Students Master of Oil and Gas Engineering

    E-Print Network [OSTI]

    Tobar, Michael

    Study Guide 2010 for Full-Time Students Master of Oil and Gas Engineering Graduate Diploma in Oil Oil & Gas Economics PETR8503 Reservoir Engineering Possible Options (example only) CIVL4130 Offshore freedom to choose units from the available options listed in the Master of Oil and Gas Engineering Table

  2. Study of the spray to globular transition in gas metal arc welding: a spectroscopic investigation

    E-Print Network [OSTI]

    Study of the spray to globular transition in gas metal arc welding: a spectroscopic investigation of the spray to globular transition in gas metal arc welding: a spectroscopic investigation F Valensi1.iop.org/JPhysD/46/224005 Abstract The gas metal arc welding (GMAW) process is strongly influenced by the composition

  3. Noble gas temperature control of metal clusters: A molecular dynamics study

    E-Print Network [OSTI]

    Tománek, David

    Noble gas temperature control of metal clusters: A molecular dynamics study Jan Westergren a noble gas atmosphere. The simulations are performed using a many-body interaction scheme for the intra-cluster potential, while a pairwise Lennard-Jones potential is used to model the interaction between the noble gas

  4. A Case Study from Norway on Gas-Fired Power Plants, Carbon Sequestration, and Politics

    E-Print Network [OSTI]

    1 A Case Study from Norway on Gas-Fired Power Plants, Carbon Sequestration, and Politics Guillaume contended the gas-fired plants would slow Norway's dependence on imported electricity from Denmark, which 81-71 in favor of building Norway's first natural gas-fired power plant.1 As a result Bondevik

  5. A Quantum Chemistry Study of Natural Gas Hydrates Mert Atilhan,1

    E-Print Network [OSTI]

    Pala, Nezih

    1 A Quantum Chemistry Study of Natural Gas Hydrates Mert Atilhan,1 Nezih Pala,2 and Santiago.A.), npala@fiu.edu (N.P.) and sapar@ubu.es (S.A.) ABSTRACT The structure and properties of natural gas to take account of dispersion. Keywords: Natural gas, hydrates, quantum chemistry, density functional

  6. Emission factor estimation in regional air quality studies of residential natural gas fuel interchangeability

    E-Print Network [OSTI]

    Dabdub, Donald

    Emission factor estimation in regional air quality studies of residential natural gas fuel applicable to investigations of modeling the effect of natural gas interchangeability on urban air quality for natural gas burner emissions data. The method is built to compensate for the typically small sample size

  7. General equilibrium, electricity generation technologies and the cost of carbon abatement: A structural sensitivity analysis

    E-Print Network [OSTI]

    General equilibrium, electricity generation technologies and the cost of carbon abatement Institute of Technology, USA a b s t r a c ta r t i c l e i n f o Article history: Received 25 February 2011: C61 C68 D58 Q43 Keywords: Carbon policy Energy modeling Electric power sector Bottom-up Top

  8. Use of Simulation To Optimize NOx Abatement by Absorption and Selective Catalytic Reduction

    E-Print Network [OSTI]

    Liu, Y. A.

    Use of Simulation To Optimize NOx Abatement by Absorption and Selective Catalytic Reduction Andrew involving both absorption and selective catalytic reduction (SCR). The model helps identify operator The system under analysis involves two key pro- cesses: absorption and selective catalytic reduction (SCR

  9. Gas Jet Disruption Mitigation Studies on Alcator C-Mod and DIII-D

    E-Print Network [OSTI]

    Gas Jet Disruption Mitigation Studies on Alcator C-Mod and DIII-D R.S. Granetz1, E.M. Hollmann2, D-pressure noble gas jet High-pressure noble gas jets can mitigate 3 problems arising from disruptions, without molybdenum Be, W, C #12;Specific goals of these DIII-D and C-Mod gas jet experiments · Determine penetration

  10. A study of natural gas extraction in Marcellus shale

    E-Print Network [OSTI]

    Boswell, Zachary (Zachary Karol)

    2011-01-01

    With the dramatic increases in crude oil prices there has been a need to find reliable energy substitutions. One substitution that has been used in the United States is natural gas. However, with the increased use of natural ...

  11. Case Studies from the Climate Technology Partnership: Landfill Gas Projects in South Korea and Lessons Learned

    SciTech Connect (OSTI)

    Larney, C.; Heil, M.; Ha, G. A.

    2006-12-01

    This paper examines landfill gas projects in South Korea. Two case studies provide concrete examples of lessons learned and offer practical guidance for future projects.

  12. Energy Policy Act Transportation Study: Interim Report on Natural Gas Flows and Rates

    Reports and Publications (EIA)

    1995-01-01

    This report, summarized data and studies that could be used to address the impact of legislative and regulatory actions on natural gas transportation rates and flow patterns.

  13. Surface chemistry of bulk nanocrystalline pure iron and electrochemistry study in gas-flow physiological saline

    E-Print Network [OSTI]

    Zheng, Yufeng

    Surface chemistry of bulk nanocrystalline pure iron and electrochemistry study in gas greatly than that of MC-Fe. A further comparative study of corrosion and electrochemistry per- formance of bulk nanocrystalline pure iron and electrochemistry study in gas-flow physiological saline. J Biomed

  14. Tapping Landfill Gas to Provide Significant Energy Savings and Greenhouse Gas Reductions - Case Study

    SciTech Connect (OSTI)

    2013-04-30

    BroadRock Renewables, LLC built two high efficiency electricity generating facilities that utilize landfill gas in California and Rhode Island. The two projects received a total of $25 million in U.S. Department of Energy funding from the American Recovery and Reinvestment Act (ARRA) of 2009. Private-sector cost share for the projects totaled approximately $186 million.

  15. A CFD study of gas-solid jet in a CFB riser flow

    SciTech Connect (OSTI)

    Li, Tingwen; Guenther, Chris

    2012-03-01

    Three-dimensional high-resolution numerical simulations of a gas–solid jet in a high-density riser flow were conducted. The impact of gas–solid injection on the riser flow hydrodynamics was investigated with respect to voidage, tracer mass fractions, and solids velocity distribution. The behaviors of a gas–solid jet in the riser crossflow were studied through the unsteady numerical simulations. Substantial separation of the jetting gas and solids in the riser crossflow was observed. Mixing of the injected gas and solids with the riser flow was investigated and backmixing of gas and solids was evaluated. In the current numerical study, both the overall hydrodynamics of riser flow and the characteristics of gas–solid jet were reasonably predicted compared with the experimental measurements made at NETL.

  16. EMSP Final Report: Electrically Driven Technologies for Radioactive Aerosol Abatement

    SciTech Connect (OSTI)

    DePaoli, D.W.

    2003-01-22

    The purpose of this research project was to develop an improved understanding of how electrically driven processes, including electrocoalescence, acoustic agglomeration, and electric filtration, may be employed to efficiently treat problems caused by the formation of aerosols during DOE waste treatment operations. The production of aerosols during treatment and retrieval operations in radioactive waste tanks and during thermal treatment operations such as calcination presents a significant problem of cost, worker exposure, potential for release, and increased waste volume. There was anecdotal evidence in the literature that acoustic agglomeration and electrical coalescence could be used together to change the size distribution of aerosol particles in such a way as to promote easier filtration and less frequent maintenance of filtration systems. As such, those electrically driven technologies could potentially be used as remote technologies for improved treatment; however, existing theoretical models are not suitable for prediction and design. To investigate the physics of such systems, and also to prototype a system for such processes, a collaborative project was undertaken between Oak Ridge National Laboratory (ORNL) and the University of Texas at Austin (UT). ORNL was responsible for the larger-scale prototyping portion of the project, while UT was primarily responsible for the detailed physics in smaller scale unit reactors. It was found that both electrical coalescence and acoustic agglomeration do in fact increase the rate of aggregation of aerosols. Electrical coalescence requires significantly less input power than acoustic agglomeration, but it is much less effective in its ability to aggregate/coalesce aerosols. The larger-scale prototype showed qualitatively similar results as the unit reactor tests, but presented more difficulty in interpretation of the results because of the complex multi-physics coupling that necessarily occur in all larger-scale system tests. An additional finding from this work is that low-amplitude oscillation may provide an alternative, non-invasive, non-contact means of controlling settling and/or suspension of solids. Further investigation would be necessary to evaluate its utility for radioactive waste treatment applications. This project did not uncover a new technology for radioactive waste treatment. While it may be possible that an efficient electrically driven technology for aerosol treatment could be developed, it appears that other technologies, such as steel and ceramic HEPA filters, can suitably solve this problem. If further studies are to be undertaken, additional fundamental experimentation and modeling is necessary to fully capture the physics; in addition, larger-scale tests are needed to demonstrate the treatment of flowing gas streams through the coupling of acoustic agglomeration with electrocoalescence.

  17. THE CO2 ABATEMENT POTENTIAL OF CALIFORNIA'S MID-SIZED COMMERCIAL BUILDINGS

    SciTech Connect (OSTI)

    Stadler, Michael; Marnay, Chris; Cardoso, Goncalo; Lipman, Tim; Megel, Olivier; Ganguly, Srirupa; Siddiqui, Afzal; Lai, Judy

    2009-12-31

    The Ernest Orlando Lawrence Berkeley National Laboratory (LBNL) is working with the California Energy Commission (CEC) todetermine the potential role of commercial sector distributed generation (DG) with combined heat and power (CHP) capability deployment in greenhouse gas emissions (GHG) reductions. CHP applications at large industrial sites are well known, and a large share of their potential has already been harvested. In contrast, relatively little attention has been paid to the potential of medium-sized commercial buildings, i.e. ones with peak electric loads ranging from 100 kW to 5 MW. We examine how this sector might implement DG with CHP in cost minimizing microgrids that are able to adopt and operate various energy technologies, such as solar photovoltaics (PV), on-site thermal generation, heat exchangers, solar thermal collectors, absorption chillers, and storage systems. We apply a mixed-integer linear program (MILP) that minimizes a site?s annual energy costs as its objective. Using 138 representative mid-sized commercial sites in California (CA), existing tariffs of three major electricity distribution ultilities, and performance data of available technology in 2020, we find the GHG reduction potential for this CA commercial sector segment, which represents about 35percent of total statewide commercial sector sales. Under the assumptions made, in a reference case, this segment is estimated to be capable of economically installing 1.4 GW of CHP, 35percent of the California Air Resources Board (CARB) statewide 4 GW goal for total incremental CHP deployment by 2020. However, because CARB?s assumed utilization is far higher than is found by the MILP, the adopted CHP only contributes 19percent of the CO2 target. Several sensitivity runs were completed. One applies a simple feed-in tariff similar to net metering, and another includes a generous self-generation incentive program (SGIP) subsidy for fuel cells. The feed-in tariff proves ineffective at stimulating CHP deployment, while the SGIP buy down is more powerful. The attractiveness of CHP varies widely by climate zone and service territory, but in general, hotter inlandareas and San Diego are the more attractive regions because high cooling loads achieve higher equipment utilization. Additionally, large office buildings are surprisingly good hosts for CHP, so large office buildings in San Diego and hotter urban centers emerge as promising target hosts. Overall the effect on CO2 emissions is limited, never exceeding 27 percent of the CARB target. Nonetheless, results suggest that the CO2 emissions abatement potential of CHP in mid-sized CA buildings is significant, and much more promising than is typically assumed.

  18. Energy Economizer for Low Temperature Stack Gas: A Case Study 

    E-Print Network [OSTI]

    Tipton, J. A.

    1979-01-01

    , the burner air supply is preheated by passing through the heat exchanger. Sensitive design problems that had to be resolved were: Overall cost-effectiveness; below dew point cooling of stack gas causing acid corrosion; and selection of an effective heat...

  19. Study of a zirconium getter for purification of xenon gas

    E-Print Network [OSTI]

    Dobi, A; Hall, C; Kaufman, L; Langford, T; Slutsky, S; Yen, Y R

    2010-01-01

    Oxygen, nitrogen and methane purification efficiencies for a common zirconium getter are measured in 1050 Torr of xenon gas. Starting with impurity concentrations near 10^{-6} g/g, the outlet impurity level is found to be less than 120*10^{-12} g/g for O2 and less than 950*10^{-12} g/g for N2. For methane we find residual contamination of the purified gas at concentrations varying over three orders of magnitude, depending on the purifier temperature and the gas flow rate. A slight reduction in the purifier's methane efficiency is observed after 13 mg of this impurity has been absorbed, which we attribute to partial exhaustion of the purifier's capacity for this species. We also find that the purifier's ability to absorb N2 and methane can be extinguished long before any decrease in O2 performance is observed, and slower flow rates should be employed for xenon purification due to the cooling effect that the heavy gas has on the getter.

  20. A market and engineering study of a 3-kilowatt class gas turbine generator

    E-Print Network [OSTI]

    Monroe, Mark A. (Mark Alan)

    2003-01-01

    Market and engineering studies were performed for the world's only commercially available 3 kW class gas turbine generator, the IHI Aerospace Dynajet. The objectives of the market study were to determine the competitive ...

  1. Broadening the Appeal of Marginal Abatement Cost Curves: Capturing Both Carbon Mitigation and Development Benefits of Clean Energy Technologies; Preprint

    SciTech Connect (OSTI)

    Cowlin, S.; Cochran, J.; Cox, S.; Davison, C.; van der Gaast, Y.

    2012-08-01

    Low emission development strategies (LEDS) articulate policies and implementation plans that enable countries to advance sustainable, climate-resilient development and private sector growth while significantly reducing the greenhouse gas (GHG) emissions traditionally associated with economic growth. In creating a LEDS, policy makers often have access to information on abatement potential and costs for clean energy technologies, but there is a scarcity of economy-wide approaches for evaluating and presenting information on other dimensions of importance to development, such as human welfare, poverty alleviation, and energy security. To address this shortcoming, this paper proposes a new tool for communicating development benefits to policy makers as part of a LEDS process. The purpose of this tool is two-fold: 1. Communicate development benefits associated with each clean energy-related intervention; 2. Facilitate decision-making on which combination of interventions best contributes to development goals. To pilot this tool, the authors created a visual using data on developmental impacts identified through the Technology Needs Assessment (TNA) project in Montenegro. The visual will then be revised to reflect new data established through the TNA that provides information on cost, GHG mitigation, as well as the range and magnitude of developmental impacts.

  2. Review of current research and activities involving characterization, abatement, and disposal of lead-containing paint films

    SciTech Connect (OSTI)

    McKnight, M.E.

    1990-05-01

    In response to a recent regulation for abating lead-based paint in housing and other environmental regulations, research projects and other activities are being conducted to provide information on procedures for carrying out abatement and maintenance of lead-containing paint films in a safe and cost-effective manner. Relevant Federal regulations, and current research projects and other activities addressing the issues are reviewed.

  3. Status and integration of studies of gas generation in Hanford wastes

    SciTech Connect (OSTI)

    Pederson, L.R.; Bryan, S.A.

    1996-10-01

    The purpose of this report is to review recent progress in determining the mechanism, kinetics, and stoichiometry of gas generation in Hanford waste tanks. Information has been gathered from the results of (1) laboratory studies with simulated wastes; (2) laboratory studies with actual waste core samples (Tanks SY-101 and SY-103); (3) studies of thermal and radiolytic reactions in the gas phase; (4) gas solubility evaluations; and (5) in-tank gas composition data. The results of laboratory studies using simulated wastes, which were aimed at determining chemical mechanisms responsible for gas generation, are summarized in Section 2. Emphasized are findings from work performed at the Georgia Institute of Technology (GIT), which was conducted under subcontract to Pacific Northwest National Laboratory (PNNL) and completed in FY 1996. Thermally activated pathways for the decomposition of hydroxyethylethylene-diaminetriacetic acid (HEDTA, trisodium salt) in simulated wastes were established by this work, among other accomplishments.

  4. Abating climate change. What will be done and the consequences for investors

    SciTech Connect (OSTI)

    Raskin, A.; Mellquist, N.; Shah, S.; Winton, B.

    2008-01-15

    This report is meant for institutional investors. Sections discuss: the science of climate change; global emissions - abatement scenario; coal - the world's dominant fuel for electric generation; CO{sub 2} transport and storage; nuclear energy - the new green solution; renewable energy - harnessing the power of water, wind and sun; regulation; increasing energy efficiency - the lowest cost option; enhancing the efficiency of electric applications; enhancing the efficiency of transportation; macroeconomic implications; and investment implications.

  5. Renewable Energy Sales and Use Tax Abatement | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary From: v2.7 Multiple< Back Eligibility< Back Eligibility

  6. Property Tax Abatement for Green Buildings | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary AreasDepartmentImre Gyuk, U.S.Energymore than

  7. Property Tax Abatement for Production and Manufacturing Facilities |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary AreasDepartmentImre Gyuk, U.S.Energymore thanDepartment of

  8. City of Cincinnati - Property Tax Abatement for Green Buildings |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCaribElectricSouthApplying2-2002Joshua<Department<

  9. City of Cleveland - Residential Property Tax Abatement for Green Buildings

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCaribElectricSouthApplying2-2002Joshua<Department<< Back|

  10. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    2007- CEC, 2007b “California Power Plants Database” http://power to California are a mix of high efficiency combined cycle plants

  11. Preliminary Estimates of Combined Heat and Power Greenhouse Gas Abatement Potential for California in 2020

    E-Print Network [OSTI]

    Firestone, Ryan; Ling, Frank; Marnay, Chris; Hamachi LaCommare, Kristina

    2007-01-01

    For each building type, the installed capacity of CHP wasFor each building type, the installed capacity of CHP wasespecially smaller buildings. CHP has already penetrated

  12. Cost of Abating Greenhouse Gas Emissions with Cellulosic Ethanol Puneet Dwivedi,,

    E-Print Network [OSTI]

    DeLucia, Evan H.

    residues and different types of energy crops) that are expected to differ in their production costs and GHG Hudiburg,, Deepak Jaiswal, William Parton,§ Stephen Long,, Evan DeLucia,, and Madhu Khanna*,, Energy below the threshold of at least 60% for biofuels classified as cellulosic biofuels under the Renewable

  13. Capturing Waste Gas: Saves Energy, Lower Costs - Case Study, 2013 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a lCarib Energy (USA) LLCAdministrationAward-LNG -07-11-2014Department

  14. Feasibility study of Northeast Thailand Gas Pipeline Project. Final report. Part 2. Compressed natural gas. Export trade information

    SciTech Connect (OSTI)

    Not Available

    1989-09-01

    The volume is the second part of a three part study submitted to the Petroleum Authority of Thailand. Part II analyzes the potential use of compressed natural gas (CNG) as a transportation fuel for high mileage vehicles traveling the highway system of Thailand. The study provides an initial estimate of buses and trucks that are potential candidates for converting to natural gas vehicles (NGV). CNG technology is briefly reviewed. The types of refueling stations that may be sited along the highway are discussed. The estimated capital investments and typical layouts are presented. The report also discusses the issues involved in implementing a CNG program in Thailand, such as safety, user acceptability and the government's role.

  15. Mechanistic Studies on the Formation of Trifluoromethyl Sulfur Pentafluoride, SF5CF3sa Greenhouse Gas

    E-Print Network [OSTI]

    Kaiser, Ralf I.

    Mechanistic Studies on the Formation of Trifluoromethyl Sulfur Pentafluoride, SF5CF3sa Greenhouse that a source for this potentially dangerous greenhouse gas might be the recombination of SF5(X2A1) and CF3(X2A1 the strongest greenhouse gas trifluoromethyl sulfur pentafluoride (SF5CF3) with a radiative force of 0.59 W m-2

  16. STUDYING THE STREAMLINING OF A BLUNTED BODY BY A VIBRATIONAL-NONEQUILIBRIUM DISSOCIATED GAS

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    STUDYING THE STREAMLINING OF A BLUNTED BODY BY A VIBRATIONAL-NONEQUILIBRIUM DISSOCIATED GAS O. Yu body by a vibrational~nonequilibrium dissociated gas within the framework of the CVDV model [i, 2 situations: the streamlining of a body under conditions of free natural flight and the streamlining

  17. Study of gas production potential of New Albany Shale (group) in the Illinois basin

    SciTech Connect (OSTI)

    Hasenmueller, N.R.; Boberg, W.S.; Comer, J.; Smidchens, Z. (Indiana Geological Survey, Bloomington (United States)); Frankie, W.T.; Lumm, D.K. (Illinois State Geological Survey, Champaign (United States)); Hamilton-Smith, T.; Walker, J.D. (Kentucky Geological Survey, Lexington (United States))

    1991-08-01

    The New Albany Shale (Devonian and Mississippian) is recognized as both a source rock and gas-producing reservoir in the Illinois basin. The first gas discovery was made in 1885, and was followed by the development of several small fields in Harrison County, Indiana, and Meade County, Kentucky. Recently, exploration for and production of New Albany gas has been encouraged by the IRS Section 29 tax credit. To identify technology gaps that have restricted the development of gas production form the shale gas resource in the basin, the Illinois Basin Consortium (IBC), composed of the Illinois, Indiana, and Kentucky geological surveys, is conducting a cooperative research project with the Gas Research Institute (GRI). An earlier study of the geological and geochemical aspects of the New Albany was conducted during 1976-1978 as part of the Eastern Gas Shales Project (EGSP) sponsored by the Department of Energy (DOE). The current IBC/GRI study is designed to update and reinterpret EGSP data and incorporate new data obtained since 1978. During the project, relationships between gas production and basement structures are being emphasized by constructing cross sections and maps showing thickness, structure, basement features, and thermal maturity. The results of the project will be published in a comprehensive final report in 1992. The information will provide a sound geological basis for ongoing shale-gas research, exploration, and development in the basin.

  18. Nitrogen oxide abatement by distributed fuel addition. Final report

    SciTech Connect (OSTI)

    Wendt, J.O.L.; Mereb, J.B.

    1991-09-20

    Reburning is examined as a means of NO{sub x} destruction in a 17 kW down-fired pulverized coal combustor. In reburning, a secondary fuel is introduced downstream of the primary flame to produce a reducing zone, favorable to NO destruction, and air is introduced further downstream to complete the combustion. Emphasis is on natural gas reburning and a bituminous coal primary flame. A parametric examination of reburning employing a statistical experimental design, is conducted, complemented by detailed experiments. Mechanisms governing the inter-conversion of nitrogenous species in the fuel rich reburn zone is explored. The effect of reburning on N{sub 2}O emissions, the effect of primary flame mode (premixed and diffusion) and the effect of distributing the reburning fuel, are also investigated.

  19. Natural gas pipelines after field price decontrol : a study of risk, return and regulation

    E-Print Network [OSTI]

    Carpenter, Paul R.

    1984-01-01

    This is a study of a regulated industry undergoing rapid change. For the first time in its history, following the partial decontrol of field prices in 1978, natural gas is being priced at a level which places it in direct ...

  20. GE to Invest in Penn State Center to Study Natural Gas Supply...

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

    window) GE to Invest in Penn State Center to Study Natural Gas Supply Chains University Park, Pa. - GE announced it will invest up to 10 million in Penn State to establish a new...

  1. GREENHOUSE GAS EMISSION CONTROL OPTIONS: ASSESSING TRANSPORTATION AND ELECTRICITY GENERATION TECHNOLOGIES AND

    E-Print Network [OSTI]

    Kockelman, Kara M.

    1 GREENHOUSE GAS EMISSION CONTROL OPTIONS: ASSESSING TRANSPORTATION AND ELECTRICITY GENERATION, Environmental and Ecological Effects," August 2013. KEY WORDS: Greenhouse gases, transportation energy, electric options is an important step in formulating a cohesive strategy to abate U.S. greenhouse gas (GHG

  2. Second report on the Oak Ridge Y-12 Plant Biological Monitoring and Abatement Program for East Fork Poplar Creek

    SciTech Connect (OSTI)

    Hinzman, R.L.; Adams, S.M.; Black, M.C.

    1993-06-01

    As stipulated in the National Pollutant Discharge Elimination System (NDPES) permit issued to the Oak Ridge Y-12 Plant on May 24, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for the receiving stream, East Fork Poplar Creek (EFPC). The objectives of BMAP are (1) to demonstrate that the current effluent limitations established for the Y-12 Plant protect the classified uses of EFPC (e.g., the growth and propagation of fish and aquatic life), as designated by the Tennessee Department of Environment and Conservation (TDEC) and (2) to document the ecological effects resulting from implementation of a Water Pollution Control Program that includes construction of several large wastewater treatment facilities. BMAP consists of four major tasks: (1) ambient toxicity testing; (2) bioaccumulation studies; (3) biological indicator studies; and (4) ecological surveys of stream communities, including periphyton (attached algae), benthic (bottom-dwelling) macroinvertebrates, and fish. This document, the second in a series of reports on the results of the Y-12 Plant BMAP, describes studies that were conducted between July 1986 and July 1988, although additional data collected outside this time period are included, as appropriate.

  3. First report on the Oak Ridge Y-12 Plant Biological Monitoring and Abatement Program for East Fork Poplar Creek

    SciTech Connect (OSTI)

    Loar, J.M.; Adams, S.M.; Allison, L.J.; Boston, H.L.; Huston, M.A.; McCarthy, J.F.; Smith, J.G.; Southworth, G.R.; Stewart, A.J. (Oak Ridge National Lab., TN (United States)); Black, M.C. (Oklahoma State Univ., Stillwater, OK (United States)); Gatz, A.J. Jr. (Ohio Wesleyan Univ., Delaware, OH (United States)); Hinzman, R.L. (Oak Ridge Research Inst., TN (United States)); Jimenez, B.D. (Puerto Rico Univ.,

    1992-07-01

    As stipulated in the National Pollutant Discharge Elimination System (NPDES) permit issued to the Oak Ridge Y-12 Plant on May 24, 1985, a Biological Monitoring and Abatement Program (BMAP) was developed for the receiving stream, East Fork Poplar Creek (EFPC). The objectives of the BMAP are (1) to demonstrate that the current effluent limitations established for the Oak Ridge Y-12 Plant protect the uses of EFPC (e.g., the growth and propagation of fish and aquatic life), as designated by the Tennessee Department of Environment and Conservation (TDEC) [formerly the Tennessee Department of Health and Environment (TDHE)], and (2) to document the ecological effects resulting from implementation of a water pollution control program that includes construction of several large wastewater treatment facilities. The BMAP consists of four major tasks: (1) ambient toxicity testing, (2) bioaccumulation studies, (3) biological indicator studies, and (4) ecological surveys of stream communities, including periphyton (attached algae), benthic macroinvertebrates, and fish. This document, the first in a series of reports on the results of the Y-12 Plant BMAP, describes studies that were conducted from May 1985 through September 1986.

  4. Carbon offsets as a cost containment instrument : a case study of reducing emissions from deforestation and forest degradation

    E-Print Network [OSTI]

    Kim, Jieun, S.M. Massachusetts Institute of Technology

    2010-01-01

    Carbon offset is one type of flexibility mechanism in greenhouse gas emission trading schemes that helps nations meet their emission commitments at lower costs. Carbon offsets take advantage of lower abatement cost ...

  5. Petrographic, Mineralogic, and Geochemical Studies of Hydrocarbon-derived Authigenic Carbonate Rock from Gas Venting, Seepage, Free Gas, and Gas Hydrate Sites in the Gulf of Mexico and offshore India 

    E-Print Network [OSTI]

    Jung, Woodong

    2012-02-14

    . ACR collected from the seafloor in the Gulf of Mexico (GOM) and ACR recovered from drilled cores in the Krishna-Godawari (KG) basin offshore India were used. All study sites are associated with hydrocarbon gas venting, seepage, free gas, or gas hydrate...

  6. Slurry growth, gas retention, and flammable gas generation by Hanford radioactive waste tanks: Synthetic waste studies, FY 1991

    SciTech Connect (OSTI)

    Bryan, S.A.; Pederson, L.R.; Ryan, J.L.; Scheele, R.D.; Tingey, J.M.

    1992-08-01

    Of 177 high-level waste storage tanks on the Hanford Site, 23 have been placed on a safety watch list because they are suspected of producing flammable gases in flammable or explosive concentrate. One tankin particular, Tank 241-SY-101 (Tank 101-SY), has exhibited slow increases in waste volume followed by a rapid decrease accompanied by venting of large quantities of gases. The purpose of this study is to help determine the processes by which flammable gases are produced, retained, and eventually released from Tank 101-SY. Waste composition data for single- and double-shell waste tanks on the flammable gas watch listare critically reviewed. The results of laboratory studies using synthetic double-shell wastes are summarized, including physical and chemical properties of crusts that are formed, the stoichiometry and rate ofgas generation, and mechanisms responsible for formation of a floating crust.

  7. Integrated seismic study of naturally fractured tight gas reservoirs

    SciTech Connect (OSTI)

    Mavko, G.M.; Nur, A.

    1993-12-31

    Reflection seismic methods are, and will continue to be, the key geophysical tool for imaging these heterogeneities in the subsurface of the earth. However, in spite of great advances in field acquisition techniques and computer processing power, the primary product of conventional seismic work is still only the spatial pattern of reflectivity, which is a measure of velocity variations. Most of the amplitude information goes unused. Although fracture zones may have a reflectivity signature, more often they will not, because of steeply dipping angles, limited offset range in the acquisition, a subtle impedance mismatch, or too thin a fractured zone relative to the wavelength. In fact, there is probably no single seismic attribute that will always tell us what we need to know about fracture zones. Our objective, in the project, is to integrate the principles of rock physics into a quantitative interpretation scheme that exploits the broader spectrum of fracture zone signatures: anomalous compressional and shear wave velocities; Q and velocity dispersion; increased velocity anisotropy amplitude variation with offset (AVO) response. Our goal is to incorporate four key elements: Acquisition and processing of seismic reflection field data. Theoretical studies of the anisotropic signatures of fractured rocks. Laboratory measurements of seismic velocity, velocity anisotropy, and attenuation in reservoir and cap rocks. Integration and interpretation of seismic, well log, and laboratory data, incorporating forward modeling.

  8. Principal Component Analysis studies of turbulence in optically thick gas

    E-Print Network [OSTI]

    Correia, Caio; Burkhart, Blakesley; Pogosyan, Dmitri; De Medeiros, José Renan

    2015-01-01

    In this work we investigate the Principal Component Analysis (PCA) sensitivity to the velocity power spectrum in high opacity regimes of the interstellar medium (ISM). For our analysis we use synthetic Position-Position-Velocity (PPV) cubes of fractional Brownian motion (fBm) and magnetohydrodynamics (MHD) simulations, post processed to include radiative transfer effects from CO. We find that PCA analysis is very different from the tools based on the traditional power spectrum of PPV data cubes. Our major finding is that PCA is also sensitive to the phase information of PPV cubes and this allows PCA to detect the changes of the underlying velocity and density spectra at high opacities, where the spectral analysis of the maps provides the universal -3 spectrum in accordance with the predictions of Lazarian \\& Pogosyan (2004) theory. This makes PCA potentially a valuable tool for studies of turbulence at high opacities provided that the proper gauging of the PCA index is made. The later, however, we found t...

  9. Experimental studies of steam-propane and enriched gas injection for the Minas light crude oil 

    E-Print Network [OSTI]

    Yudishtira, Wan Dedi

    2003-01-01

    Experimental studies were carried out to compare the benefits of propane as an additive in steam injection and in lean gas injection to enhance production for the Minas light crude oil (34?API). The studies on steam-propane were specifically...

  10. Public Utility Regulatory Policies Act of 1978: Natural Gas Rate Design Study

    SciTech Connect (OSTI)

    None

    1980-05-01

    First, the comments on May 3, 1979 Notice of Inquiry of DOE relating to the Gas Utility Rate Design Study Required by Section 306 of PURPA are presented. Then, comments on the following are included: (1) ICF Gas Utility Model, Gas Utility Model Data Outputs, Scenario Design; (2) Interim Model Development Report with Example Case Illustrations; (3) Interim Report on Simulation of Seven Rate Forms; (4) Methodology for Assessing the Impacts of Alternative Rate Designs on Industrial Energy Use; (5) Simulation of Marginal-Cost-Based Natural Gas Rates; and (6) Preliminary Discussion Draft of the Gas Rate Design Study. Among the most frequent comments expressed were the following: (a) the public should be given the opportunity to review the final report prior to its submission to Congress; (b) results based on a single computer model of only four hypothetical utility situations cannot be used for policy-making purposes for individual companies or the entire gas industry; (c) there has been an unobjective treatment of traditional and economic cost rate structures; the practical difficulties and potential detrimental consequences of economic cost rates are not fully disclosed; and (d) it is erroneous to assume that end users, particularly residential customers, are influenced by price signals in the rate structure, as opposed to the total bill.

  11. Lead-based paint: Interim guidelines for hazard identification and abatement in public and Indian housing

    SciTech Connect (OSTI)

    Not Available

    1990-09-01

    The interim Guidelines provide information on the need for and appropriate methods of identifying and abating lead-based paint (LBP) in the Department of Housing and Urban Development's (HUD's) Public and Indian Housing program. It should be noted that these are interim Guidelines and are subject to change as new information becomes available. All requirements for Public Housing Authorities (PHAs) are considered to apply to Indian Housing Authorities (IHAs), except where specifically excluded by statute. Thus, these Guidelines apply to PHAs and IHAs inclusively. These Guidelines have been prepared by a panel of distinguished experts in the field of LBP and are an outgrowth of the National Institute of Building Sciences (NIBS) effort, which developed the first draft of these guidelines under contract to HUD. These Guidelines represent the first national compilation of technical protocols, practices, and procedures on testing, abatement, worker protection, clean-up, and disposal of LBP in residential structures. These Guidelines should be used in conjunction with the requirements of any State or local codes and regulations which may apply to the specific project under consideration.

  12. Abatement of Xenon and Iodine Emissions from Medical Isotope Production Facilities

    SciTech Connect (OSTI)

    Doll, Charles G.; Sorensen, Christina M.; Bowyer, Ted W.; Friese, Judah I.; Hayes, James C.; Hoffman, Emma L.; Kephart, Rosara F.

    2014-04-01

    The capability of the International Monitoring System (IMS) to detect xenon from underground nuclear explosions is dependent on the radioactive xenon background. Adding to the background, medical isotope production (MIP) by fission releases several important xenon isotopes including xenon-133 and iodine-133 that decays to xenon-133. The amount of xenon released from these facilities may be equivalent to or exceed that released from an underground nuclear explosion. Thus the release of gaseous fission products within days of irradiation makes it difficult to distinguish MIP emissions from a nuclear explosion. In addition, recent shortages in molybdenum-99 have created interest and investment opportunities to design and build new MIP facilities in the United States and throughout the world. Due to the potential increase in the number of MIP facilities, a discussion of abatement technologies provides insight into how the problem of emission control from MIP facilities can be tackled. A review of practices is provided to delineate methods useful for abatement of medical isotopes.

  13. Second report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

    SciTech Connect (OSTI)

    Loar, J.M.; Adams, S.M.; Bailey, R.D.; Blaylock, B.G.; Boston, H.L.; Cox, D.K.; Huston, M.A.; Kimmel, B.L.; Loar, J.M.; Olsen, C.R.; Ryon, M.G.; Shugart, L.R.; Smith, J.G.; Southworth, G.R.; Stewart, A.J.; Walton, B.T.; Talmage, S.S.; Murphy, J.B.; Valentine, C.K.; Appellanis, S.M.; Jimenez, B.D.; Huq, M.V.; Meyers-Schone, L.J.; Mohrbacher, D.A.; Olsen, C.R.; Stout, J.G.

    1992-12-01

    As a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC); selected tributaries of WOC, including Fifth Creek, First Creek, Melton Branch, and Northwest Tributary; and the Clinch River. BMAP consists of seven major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs on-site and the aquatic environs off-site. These tasks are (1) toxicity monitoring; (2) bioaccumulation monitoring of nonradiological contaminants in aquatic biota; (3) biological indicator studies; (4) instream ecological monitoring; (5) assessment of contaminants in the terrestrial environment; (6) radioecology of WOC and White Oak Lake (WOL); and (7) contaminant transport, distribution, and fate in the WOC embayment-Clinch River-Watts Bar Reservoir system. This document, the second of a series of annual reports, described the results of BMAP studies conducted in 1987.

  14. A study of the catalytic conversion of synthesis gas to low molecular weight hydrocarbons 

    E-Print Network [OSTI]

    Chan, Ting Yee

    1981-01-01

    A STUDY 0F THE CA'ALYTIC CONVERSION OF SYNTHESIS GAS TO LON NOIECULAR WEIGHT HYDROCARBONS A Thesis by TIN G YEE CHAN Submitted to the Graduate College of exas ARE University in partial fulf illment of the requirement f or the degree... of NASTER OF SCIENCE August 1981 Nejor Subject: Chemical Engineering A STUDY OF CATALYTIC CONVERSION OF SYNTHESIS GAS TO LOW MOLECULAR WEIGHT HYDROCARBONS A Thesis TING YEE CHAN Approved as to style and content by hairman o ommit ee Member ember...

  15. Fourth report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

    SciTech Connect (OSTI)

    Loar, J.M. [ed.] [ed.

    1994-04-01

    In response to a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC) and selected tributaries. BMAP currently consists of six major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs on-site and the aquatic environs off-site. These tasks are (1) toxicity monitoring, (2) bioaccumulation monitoring of nonradiological contaminants in aquatic biota, (3) biological indicator studies, (4) instream ecological monitoring, (5) assessment of contaminants in the terrestrial environment, and (6) radioecology of WOC and White Oak Lake. The ecological characterization of the WOC watershed will provide baseline data that can be used to document the ecological effects of the water pollution control program and the remedial action program. The long-term nature of BMAP ensures that the effectiveness of remedial measures will be properly evaluated.

  16. CO2-Driven Enhanced Gas Recovery and Storage in Depleted Shale Reservoir-A Numerical Simulation Study

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    1 CO2-Driven Enhanced Gas Recovery and Storage in Depleted Shale Reservoir- A Numerical Simulation for storage and enhanced gas recovery may be organic-rich shales, which CO2 is preferentially adsorbed comprehensive simulation studies to better understand CO2 injection process in shale gas reservoir. This paper

  17. Miscellaneous: Uruguay energy supply options study assessing the market for natural gas - executive summary.

    SciTech Connect (OSTI)

    Conzelmann, G.; Veselka, T.; Decision and Information Sciences

    2008-03-04

    Uruguay is in the midst of making critical decisions affecting the design of its future energy supply system. Momentum for change is expected to come from several directions, including recent and foreseeable upgrades and modifications to energy conversion facilities, the importation of natural gas from Argentina, the possibility for a stronger interconnection of regional electricity systems, the country's membership in MERCOSUR, and the potential for energy sector reforms by the Government of Uruguay. The objective of this study is to analyze the effects of several fuel diversification strategies on Uruguay's energy supply system. The analysis pays special attention to fuel substitution trends due to potential imports of natural gas via a gas pipeline from Argentina and increasing electricity ties with neighboring countries. The Government of Uruguay has contracted with Argonne National Laboratory (ANL) to study several energy development scenarios with the support of several Uruguayan institutions. Specifically, ANL was asked to conduct a detailed energy supply and demand analysis, develop energy demand projections based on an analysis of past energy demand patterns with support from local institutions, evaluate the effects of potential natural gas imports and electricity exchanges, and determine the market penetration of natural gas under various scenarios.

  18. Modeling studies of gas movement and moisture migration at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    Tsang, Y.W.; Pruess, K. [Lawrence Berkeley Lab., CA (United States)

    1991-06-01

    Modeling studies on moisture redistribution processes that are mediated by gas phase flow and diffusion have been carried out. The problem addressed is the effect of a lowered humidity of the soil gas at the land surface on moisture removal from Yucca Mountain, the potential site for a high-level nuclear waste repository. At the land surface, humid formation gas contacts much drier atmospheric air. Near this contact, the humidity of the soil gas may be considerably lower than at greater depth, where the authors expect equilibrium with the liquid phase and close to 100% humidity. The lower relative humidity of the soil gas may be modeled by imposing, at the land surface, an additional negative capillary suction corresponding to vapor pressure lowering according to Kelvin`s Equation, thus providing a driving force for the upward movement of moisture in both the vapor and liquid phases. Sensitivity studies show that moisture removal from Yucca Mountain arising from the lowered-relative-humidity boundary condition is controlled by vapor diffusion. There is much experimental evidence in the soil literature that diffusion of vapor is enhanced due to pore-level phase change effects by a few orders of magnitude. Modeling results presented here will account for this enhancement in vapor diffusion.

  19. Analysis of Post-Kyoto CO2 Emissions Trading Using Marginal Abatement Curves A. Denny Ellerman and Annelne Decaux

    E-Print Network [OSTI]

    Analysis of Post-Kyoto CO2 Emissions Trading Using Marginal Abatement Curves A. Denny Ellerman the advantages of emissions trading. In this paper, the authors derive MACs from EPPA, the MIT Joint Program the benefits of emissions trading in achieving the emission reduction targets implied by the Kyoto Protocol

  20. A Top-down and Bottom-up look at Emissions Abatement in Germany in response to the EU ETS

    E-Print Network [OSTI]

    Feilhauer, Stephan M. (Stephan Marvin)

    2008-01-01

    This paper uses top-down trend analysis and a bottom-up power sector model to define upper and lower boundaries on abatement in Germany in the first phase of the EU Emissions Trading Scheme (2005-2007). Long-term trend ...

  1. Health-hazard evaluation report HETA 90-070-2181, HUD Lead-Based Paint Abatement Demonstration Project

    SciTech Connect (OSTI)

    Sussell, A.L.

    1992-02-01

    In response to a request from the Department of Housing and Urban Development (HUD) Officer for Policy Development and Research, an investigation was made into possible hazardous working conditions during the HUD Lead Based Paint Abatement Demonstration (SIC-1521). The demonstration took place in 172 vacant housing units in several different cities. The abatement methods used included abrasive removal, chemical removal, heat gun removal, encapsulation, enclosure, and replacement. Evaluations were made during the demonstrations and it was determined that the workers were exposed to lead (7439921) with the highest exposure levels coming during the heat gun method of removal. Exposures to volatile organic compounds were low. Maximum personal and general area airborne lead concentrations were 916 micrograms/cubic meter and 1296 micrograms/cubic meter, respectively. Soil sampling indicated that lead paint abatement in some cases resulted in increases in soil lead levels 1 to 3 feet from the exterior walls. The author concludes that workers were potentially overexposed to lead during lead abatement. The author recommend specific measures concerning training, work practices, engineering controls, safety programs, risk assessment, respiratory protection programs, medical monitoring and surveillance.

  2. A bottom-up method to develop pollution abatement cost curves for coal-fired utility boilers

    E-Print Network [OSTI]

    Barlaz, Morton A.

    costs depend, in part, on a complex combination of coal type, coal composition, boiler design, plantA bottom-up method to develop pollution abatement cost curves for coal-fired utility boilers. The Coal Utility Environmental Cost (CUECost) model is used to estimate retrofit costs for five different

  3. Numerical study of the unitary Fermi gas across the superfluid transition

    E-Print Network [OSTI]

    Goulko, Olga

    2015-01-01

    We present results from Monte Carlo calculations investigating the properties of the homogeneous, spin-balanced unitary Fermi gas in three dimensions. The temperature is varied across the superfluid transition allowing us to determine the temperature dependence of the chemical potential, the energy per particle and the contact density. Numerical artifacts due to finite volume and discretization are systematically studied and removed.

  4. Interdependencies of Electricity Markets with Gas Markets A Case Study of Transmission System Operators

    E-Print Network [OSTI]

    Dixon, Juan

    ISO-NE PJM Chile Chile Chile USA USA SUMMARY Electricity Energy markets do not operate in isolation1 Interdependencies of Electricity Markets with Gas Markets ­ A Case Study of Transmission System USA Brazil Canada Columbia S. Mocarquer, R. Moreno, H. Rudnick, P. Wong, A. DiCaprio Systep Systep PUC

  5. A study of the polyethylene membrane used in diffusion chambers for radon gas concentration measurements

    E-Print Network [OSTI]

    Yu, Peter K.N.

    A study of the polyethylene membrane used in diffusion chambers for radon gas concentration. Thoron can also be deterred from entering the diffusion chamber by using a polyethylene (PE) membrane rights reserved. PACS: 29.40; 23.60 Keywords: Diffusion chamber; Polyethylene membrane; Radon and thoron

  6. City Profile: Los Angeles A part of the study entitled: Reducing greenhouse gas emissions through local

    E-Print Network [OSTI]

    California at Davis, University of

    City Profile: Los Angeles A part of the study entitled: Reducing greenhouse gas emissions through in multifamily housing and more than 10 percent of households do not own a car. 61 percent of Los Angelenos over. Los Angeles Commute Mode Split Car Transit Walk Other Source: US Census Figure 1 Approximately three

  7. City Profile: Berkeley A part of the study entitled: Reducing greenhouse gas emissions through local government

    E-Print Network [OSTI]

    California at Davis, University of

    City Profile: Berkeley A part of the study entitled: Reducing greenhouse gas emissions through activism and a liberal political bent. Berkeley Commute Mode Split (2000) Car Transit Walk Other Source: US not own a car. 56 percent of Berkeley residents over 16 years of age are employed. The US Census reports

  8. Alternative Fuel Tool Kit Case Study on Compressed Natural Gas (CNG)

    E-Print Network [OSTI]

    1 5/2014 Alternative Fuel Tool Kit Case Study on Compressed Natural Gas (CNG): Build retrofit services to its clients. Its fleet consists of the following vehicles: Two 2011 CNG Ford Transit Connects Three 2009 CNG Ford Escapes Two 2012 CNG Ford E-350 Vans Three light-duty diesel vehicles

  9. Study of the Anomalous Thermochemical Behavior of 1,2-Diazines by Correlation-Gas Chromatography

    E-Print Network [OSTI]

    Chickos, James S.

    Study of the Anomalous Thermochemical Behavior of 1,2-Diazines by Correlation-Gas Chromatography of Maryland, Baltimore County, Baltimore, Maryland 21250 The vaporization enthalpies and liquid vapor literature vaporization, sublimation, and fusion enthalpy data. Good agreement with the literature

  10. Dry gas zone, Elk Hills Field, Kern County, California: General reservoir study: Engineering data, effective August 1, 1988

    SciTech Connect (OSTI)

    Not Available

    1989-01-10

    This reservoir study of the dry gas zone of Elk Hills Field is a data compilation with information relating to well: completion; production; pressure; and back pressure. (JF)

  11. A study of the effects of stimulation on Devonian Shale gas well performance 

    E-Print Network [OSTI]

    Zuber, Michael Dean

    1985-01-01

    A STUDY OF THE EFFECTS OF STIMULATION ON DEVONIAN SHALE GAS WELL PERFORMANCE A Thesis by MICHAEL DEAN ZUBER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... of Devonian Shale reser- voir types. This paper presents the results of a study of the effect of borehole shooting, hydraulic fracturing and radial fracturing techniques on typical Devonian Shale reservoirs and compares the economics of the stimulation...

  12. Energy policy act transportation study: Interim report on natural gas flows and rates

    SciTech Connect (OSTI)

    1995-11-17

    This report, Energy Policy Act Transportation Study: Interim Report on Natural Gas Flows and Rates, is the second in a series mandated by Title XIII, Section 1340, ``Establishment of Data Base and Study of Transportation Rates,`` of the Energy Policy Act of 1992 (P.L. 102--486). The first report Energy Policy Act Transportation Study: Availability of Data and Studies, was submitted to Congress in October 1993; it summarized data and studies that could be used to address the impact of legislative and regulatory actions on natural gas transportation rates and flow patterns. The current report presents an interim analysis of natural gas transportation rates and distribution patterns for the period from 1988 through 1994. A third and final report addressing the transportation rates and flows through 1997 is due to Congress in October 2000. This analysis relies on currently available data; no new data collection effort was undertaken. The need for the collection of additional data on transportation rates will be further addressed after this report, in consultation with the Congress, industry representatives, and in other public forums.

  13. Study of Flow Regimes in Multiply-Fractured Horizontal Wells in Tight Gas and Shale Gas Reservoir Systems 

    E-Print Network [OSTI]

    Freeman, Craig M.

    2010-07-14

    Various analytical, semi-analytical, and empirical models have been proposed to characterize rate and pressure behavior as a function of time in tight/shale gas systems featuring a horizontal well with multiple hydraulic fractures. Despite a small...

  14. Gas-phase study of the reactivity of optical coating materials with hydrocarbons by use of a

    E-Print Network [OSTI]

    Rocca, Jorge J.

    Gas-phase study of the reactivity of optical coating materials with hydrocarbons by use with hydrocarbons is studied in the gas phase by use of mass spectroscopy of metal-oxide clusters. We report-layer materials with hydrocarbons. An increased understanding of these reactions could lead to the development

  15. Feasibility Study of Gas Electron Multiplier Detector as an X-Ray Image Sensor

    E-Print Network [OSTI]

    Shin, Sukyoung; Lee, Soonhyouk

    2015-01-01

    For its ease manufacturing, flexible geometry, and cheap manufacturing cost, the gas electron multiplier (GEM) detector can be used as an x-ray image sensor. For this purpose, we acquired relative detection efficiencies and suggested a method to increase the detection efficiency in order to study the possibility of GEM detector as an x-ray image sensor. The GEM detector system is composed of GEM foils, the instrument system, the gas system, and the negative power supply. The instrument system consists of the A225 charge sensitive preamp, A206 discriminator, and MCA8000D multichannel analyzer. For the gas system, Argon gas was mixed with CO2 to the ratio of 8:2, and for the negative 2,000 volts, the 3106D power supply was used. The CsI-coated GEM foil was used to increase the detection efficiency. Fe-55 was used as an x-ray source and the relative efficiency was acquired by using the ratio of GEM detector to the CdTe detector. The total count method and the energy spectrum method were used to calculate the rel...

  16. Facility Configuration Study of the High Temperature Gas-Cooled Reactor Component Test Facility

    SciTech Connect (OSTI)

    S. L. Austad; L. E. Guillen; D. S. Ferguson; B. L. Blakely; D. M. Pace; D. Lopez; J. D. Zolynski; B. L. Cowley; V. J. Balls; E.A. Harvego, P.E.; C.W. McKnight, P.E.; R.S. Stewart; B.D. Christensen

    2008-04-01

    A test facility, referred to as the High Temperature Gas-Cooled Reactor Component Test Facility or CTF, will be sited at Idaho National Laboratory for the purposes of supporting development of high temperature gas thermal-hydraulic technologies (helium, helium-Nitrogen, CO2, etc.) as applied in heat transport and heat transfer applications in High Temperature Gas-Cooled Reactors. Such applications include, but are not limited to: primary coolant; secondary coolant; intermediate, secondary, and tertiary heat transfer; and demonstration of processes requiring high temperatures such as hydrogen production. The facility will initially support completion of the Next Generation Nuclear Plant. It will secondarily be open for use by the full range of suppliers, end-users, facilitators, government laboratories, and others in the domestic and international community supporting the development and application of High Temperature Gas-Cooled Reactor technology. This pre-conceptual facility configuration study, which forms the basis for a cost estimate to support CTF scoping and planning, accomplishes the following objectives: • Identifies pre-conceptual design requirements • Develops test loop equipment schematics and layout • Identifies space allocations for each of the facility functions, as required • Develops a pre-conceptual site layout including transportation, parking and support structures, and railway systems • Identifies pre-conceptual utility and support system needs • Establishes pre-conceptual electrical one-line drawings and schedule for development of power needs.

  17. Study on systems based on coal and natural gas for producing dimethyl ether

    SciTech Connect (OSTI)

    Zhou, L.; Hu, S.Y.; Chen, D.J.; Li, Y.R.; Zhu, B.; Jin, Y.

    2009-04-15

    China is a coal-dependent country and will remain so for a long time. Dimethyl ether (DME), a potential substitute for liquid fuel, is a kind of clean diesel motor fuel. The production of DME from coal is meaningful and is studied in this article. Considering the C/H ratios of coal and natural gas (NG), the cofeed (coal and NG) system (CFS), which does not contain the water gas shift process, is studied. It can reduce CO{sub 2} emission and increase the conversion rate of carbon, producing more DME. The CFS is simulated and compared with the coal-based and NG-based systems with different recycling ratios. The part of the exhaust gas that is not recycled is burned, producing electricity. On the basis of the simulation results, the thermal efficiency, economic index, and CO{sub 2} emission ratio are calculated separately. The CFS with a 100% recycling ratio has the best comprehensive evaluation index, while the energy, economy, and environment were considered at the same time.

  18. A Long Term Field Emissions Study of Natural Gas Fueled Refuse Haulers in New York City

    SciTech Connect (OSTI)

    Nigel N. Clark; Byron l. Rapp; Mridul Gautam; Wenguang Wang; Donald W. Lyons

    1998-10-19

    New York City Department of Sanitation has operated natural gas fueled refuse haulers in a pilot study: a major goal of this study was to compare the emissions from these natural gas vehicles with their diesel counterparts. The vehicles were tandem axle trucks with GVW (gross vehicle weight) rating of 69,897 pounds. The primary use of these was for street collection and transporting the refuse to a landfill. West Virginia University Transportable Heavy Duty Emissions Testing Laboratories have been engaged in monitoring the tailpipe emissions from these trucks for seven-years. In the later years of testing the hydrocarbons were speciated for non-methane and methane components. Six of these vehicles employed the older technology (mechanical mixer) Cummins L-10 lean burn natural gas engines. Five trucks were equipped with electronically controlled Detroit Diesel Series 50 lean burn engines, while another five were powered by Caterpillar stoichiometric burn 3306 natural gas engines, The Ca terpillar engines employed an exhaust oxygen sensor feedback and three way catalysts. Since the refuse haulers had automatic Allison transmissions, and since they were employed in stop-and-go city service, initial emissions measurements were made using the Central Business Cycle (SAE Jl376) for buses at 42,000 pound test weight. Some additional measurements were made using an ad hoc cycle that has been designed to be more representative of the real refuse hauler use that included several compaction cycles. The Cummins powered natural gas vehicles showed oxides of nitrogen and carbon monoxide emission variations typically associated with variable fuel mixer performance. In the first Year of testing, the stoichiometric Caterpillar engines yielded low emission levels, but in later years two of these refuse haulers had high carbon monoxide attributed to failure of the feedback system. For example, carbon monoxide on these two vehicles rose from 1.4 g/mile and 10 g/mile in 1995 to 144.9 g/mile and 57.8 g/mile in 1996. These stoichiometric engines were also less fuel efficient than their lean burn counterparts. The Detroit Diesel Series 50 powered refuse haulers produced high levels of oxides of nitrogen. However, it was found that changing the shifting patterns of the transmission lowered the oxides of nitrogen. All three engine types showed the potential for low emissions operation and the particulate matter reduction advantage offered by natural gas was evident from the results.

  19. Systems Study for Improving Gas Turbine Performance for Coal/IGCC Application

    SciTech Connect (OSTI)

    Ashok K. Anand

    2005-12-16

    This study identifies vital gas turbine (GT) parameters and quantifies their influence in meeting the DOE Turbine Program overall Integrated Gasification Combined Cycle (IGCC) plant goals of 50% net HHV efficiency, $1000/kW capital cost, and low emissions. The project analytically evaluates GE advanced F class air cooled technology level gas turbine conceptual cycle designs and determines their influence on IGCC plant level performance including impact of Carbon capture. This report summarizes the work accomplished in each of the following six Tasks. Task 1.0--Overall IGCC Plant Level Requirements Identification: Plant level requirements were identified, and compared with DOE's IGCC Goal of achieving 50% Net HHV Efficiency and $1000/KW by the Year 2008, through use of a Six Sigma Quality Functional Deployment (QFD) Tool. This analysis resulted in 7 GT System Level Parameters as the most significant. Task 2.0--Requirements Prioritization/Flow-Down to GT Subsystem Level: GT requirements were identified, analyzed and prioritized relative to achieving plant level goals, and compared with the flow down of power island goals through use of a Six Sigma QFD Tool. This analysis resulted in 11 GT Cycle Design Parameters being selected as the most significant. Task 3.0--IGCC Conceptual System Analysis: A Baseline IGCC Plant configuration was chosen, and an IGCC simulation analysis model was constructed, validated against published performance data and then optimized by including air extraction heat recovery and GE steam turbine model. Baseline IGCC based on GE 207FA+e gas turbine combined cycle has net HHV efficiency of 40.5% and net output nominally of 526 Megawatts at NOx emission level of 15 ppmvd{at}15% corrected O2. 18 advanced F technology GT cycle design options were developed to provide performance targets with increased output and/or efficiency with low NOx emissions. Task 4.0--Gas Turbine Cycle Options vs. Requirements Evaluation: Influence coefficients on 4 key IGCC plant level parameters (IGCC Net Efficiency, IGCC Net Output, GT Output, NOx Emissions) of 11 GT identified cycle parameters were determined. Results indicate that IGCC net efficiency HHV gains up to 2.8 pts (40.5% to 43.3%) and IGCC net output gains up to 35% are possible due to improvements in GT technology alone with single digit NOx emission levels. Task 5.0--Recommendations for GT Technical Improvements: A trade off analysis was conducted utilizing the performance results of 18 gas turbine (GT) conceptual designs, and three most promising GT candidates are recommended. A roadmap for turbine technology development is proposed for future coal based IGCC power plants. Task 6.0--Determine Carbon Capture Impact on IGCC Plant Level Performance: A gas turbine performance model for high Hydrogen fuel gas turbine was created and integrated to an IGCC system performance model, which also included newly created models for moisturized syngas, gas shift and CO2 removal subsystems. This performance model was analyzed for two gas turbine technology based subsystems each with two Carbon removal design options of 85% and 88% respectively. The results show larger IGCC performance penalty for gas turbine designs with higher firing temperature and higher Carbon removal.

  20. Comprehensive and workable plan for the abatement of lead-based paint in privately owned housing. Report to the Congress

    SciTech Connect (OSTI)

    Weitz, S.; Clickner, R.P.; Blackburn, A.; Buches, D.

    1991-01-01

    The report proposes a balanced and comprehensive plan designed to overcome the barriers that have inhibited efforts to address the hazards of lead-based paint in the past, and to support State and local governments and the private sector in the difficult but necessary task of reducing these hazards in American homes. The report focuses on lead paint abatement, as mandated by the Congress.

  1. Risk analysis in oil and gas projects : a case study in the Middle East

    E-Print Network [OSTI]

    Zand, Emad Dolatshahi

    2009-01-01

    Global demand for energy is rising around the world. Middle East is a major supplier of oil and gas and remains an important region for any future oil and gas developments. Meanwhile, managing oil and gas projects are ...

  2. Experimental and numerical studies of neutral gas depletion in an inductively coupled plasma

    E-Print Network [OSTI]

    Shimada, Masashi

    2006-01-01

    on Rare?ed Gas Dynamics, St. Petersburg, Russia (2006),on Rare?ed Gas Dynamics, St. Petersburg, Russia, to beRar- e?ed Gas Dynamics, St. Petersburg, Russia. In Chapter

  3. Carbon sequestration with enhanced gas recovery: Identifying candidate sites for pilot study

    E-Print Network [OSTI]

    Oldenburg, C.M.; Benson, S.M.

    2001-01-01

    Process modeling of carbon sequestration with enhanced gas2001. Reichle, D. et al.. Carbon sequestration research andCarbon Sequestration with Enhanced Gas Recovery: Identifying

  4. Study of direct-drive, deuteriumtritium gas-filled plastic capsule implosions using nuclear diagnostics at OMEGA

    E-Print Network [OSTI]

    Study of direct-drive, deuterium­tritium gas-filled plastic capsule implosions using nuclear Received 24 April 2001; accepted 31 July 2001 Implosions of direct-drive, deuterium­tritium DT gas. Specifically, with a two-dimensional 2D single-color-cycle, 1-THz-bandwidth smoothing by spectral dispersion

  5. The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study

    E-Print Network [OSTI]

    Ghosh, Ruby N.

    active transition metals such as platinum and palladium, show great promise as sen- sors for hydrogenThe role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study Yung

  6. Biological Monitoring and Abatement Program for the Oak Ridge K-25 Site

    SciTech Connect (OSTI)

    Kszos, L.A.; Adams, S.M.; Ashwood, T.L.; Blaylock, B.G.; Greeley, M.S.; Loar, J.M.; Peterson, M.J.; Ryon, M.G.; Smith, J.G.; Southworth, G.R.; Hinzman, R.L.; Shoemaker, B.A.

    1993-04-01

    A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge K-25 Site was prepared in December 1992 as required by the renewed National Pollutant Discharge Elimination System permit that was issued on October 1, 1992. The proposed BMAP is based on results of biological monitoring conducted from 1986 to 1992 and discussions held on November 12, 1992, between staff of Martin Marietta Energy Systems, Inc. (Oak Ridge National Laboratory and the K-25 Site), and the Tennessee Department of Environment and Conservation, Department of Energy Oversight Division. The proposed BMAP consists of four tasks that reflect different but complementary approaches to evaluating the effects of K-25 Site effluents on the ecological integrity of Mitchell Branch, Poplar Creek, and the Poplar Creek embayment of the Clinch River. These tasks include (1) ambient toxicity monitoring, (2) bioaccumulation monitoring, (3) assessment of fish health, and (4) instream monitoring of biological communities. This overall BMAP plan combines established protocols with current biological monitoring techniques to assess environmental compliance and quantify ecological recovery. The BMAP will also determine whether the effluent limits established for the K-25 Site protect the designated use of the receiving streams (Mitchell Branch, Poplar Creek, and Clinch River) for growth and propagation of fish and other aquatic life. Results obtained from this biological monitoring program will also be used to document the ecological effects (and effectiveness) of remedial actions.

  7. Monitoring Fish Contaminant Responses to Abatement Actions: Factors that Affect Recovery

    SciTech Connect (OSTI)

    Southworth, George R [ORNL; Peterson, Mark J [ORNL; Roy, W Kelly [ORNL; Mathews, Teresa J [ORNL

    2011-01-01

    Monitoring of contaminant accumulation in fish has been conducted in East Fork Poplar Creek (EFPC) in Oak Ridge, Tennessee since 1985. Bioaccumulation trends are examined over a twenty year period coinciding with major pollution abatement actions by a Department of Energy facility at the stream s headwaters. Although EFPC is enriched in many contaminants relative to other local streams, only polychlorinated biphenyls (PCBs) and mercury (Hg) were found to accumulate in the edible portions of fish to levels of human health concern. Mercury concentrations in redbreast sunfish were found to vary with season of collection, sex and size of individual fish. Over the course of the monitoring, waterborne Hg concentrations were reduced[80%; however, this did not translate into a comparable decrease in Hg bioaccumulation at most sites. Mercury bioaccumulation in fish did respond to decreased inputs in the industrialized headwater reach, but paradoxically increased in the lowermost reach of EFPC. As a result, the downstream pattern of Hg concentration in fish changed from one resembling dilution of a headwater point source in the 1980s to a uniform distribution in the 2000s. The reason for this remains unknown, but is hypothesized to involve changes in the chemical form and reactivity of waterborne Hg associated with the removal of residual chlorine and the addition of suspended particulates to the streamflow. PCB concentrations in fish varied greatly from year-to-year, but always exhibited a pronounced downstream decrease, and appeared to respond to management practices that limited episodic inputs from legacy sources within the facility.

  8. A blasting additive that renders wastes non hazardous in lead paint abatement projects

    SciTech Connect (OSTI)

    Clark, R.; Rapp, D.J.; McGrew, M.

    1994-12-31

    Maintenance of steel structures often produces abrasive wastes that are considered toxic and hazardous due to the lead content of the old paint system present in spent abrasives. Environmental regulations in the US and Canada effectively preclude on-site treatment and disposal of these wastes, thereby forcing them into costly transport and secure disposal options. The authors have developed an abrasive additive that allows dry or wet blasting to remove old paint systems, but the resultant wastes are considered non-hazardous and are eligible for recycling or non-hazardous waste disposal, both at sharply reduced costs. The agent does not ``mask`` environmental test results, but does produce a stable residue suitable for long term disposal or reuse. Surface conditions after application of abrasives appear to be amenable to virtually all paint systems tested. The process is in use on an estimated 10% of all steel based lead paint abatement projects in the US, and is experiencing considerable growth in market acceptance. The technology may allow disposal cost reductions in excess of 50%.

  9. Feasibility Study of Gas Electron Multiplier Detector as an X-Ray Image Sensor

    E-Print Network [OSTI]

    Sukyoung Shin; Jaehoon Jung; Soonhyouk Lee

    2015-03-12

    For its ease manufacturing, flexible geometry, and cheap manufacturing cost, the gas electron multiplier (GEM) detector can be used as an x-ray image sensor. For this purpose, we acquired relative detection efficiencies and suggested a method to increase the detection efficiency in order to study the possibility of GEM detector as an x-ray image sensor. The GEM detector system is composed of GEM foils, the instrument system, the gas system, and the negative power supply. The instrument system consists of the A225 charge sensitive preamp, A206 discriminator, and MCA8000D multichannel analyzer. For the gas system, Argon gas was mixed with CO2 to the ratio of 8:2, and for the negative 2,000 volts, the 3106D power supply was used. The CsI-coated GEM foil was used to increase the detection efficiency. Fe-55 was used as an x-ray source and the relative efficiency was acquired by using the ratio of GEM detector to the CdTe detector. The total count method and the energy spectrum method were used to calculate the relative efficiency. The relative detection efficiency of GEM detector for Fe-55 by using total count method was 32 % and by using energy spectrum method, the relative efficiencies were 5, 43, 33, 37, 35, and 36 % respectively according to the energy spectrum of 2, 3, 4, 5, 6, and 7 KeV. In conclusion, we found that the detection efficiency of the two layered GEM detector is insufficient for the x-ray image sensor, so we suggested a CsI coated GEM foil to increase the efficiency rate and the result value was increased to 41 %.

  10. Mercury Speciation in Coal-Fired Power Plant Flue Gas-Experimental Studies and Model Development

    SciTech Connect (OSTI)

    Radisav Vidic; Joseph Flora; Eric Borguet

    2008-12-31

    The overall goal of the project was to obtain a fundamental understanding of the catalytic reactions that are promoted by solid surfaces present in coal combustion systems and develop a mathematical model that described key phenomena responsible for the fate of mercury in coal-combustion systems. This objective was achieved by carefully combining laboratory studies under realistic process conditions using simulated flue gas with mathematical modeling efforts. Laboratory-scale studies were performed to understand the fundamental aspects of chemical reactions between flue gas constituents and solid surfaces present in the fly ash and their impact on mercury speciation. Process models were developed to account for heterogeneous reactions because of the presence of fly ash as well as the deliberate addition of particles to promote Hg oxidation and adsorption. Quantum modeling was used to obtain estimates of the kinetics of heterogeneous reactions. Based on the initial findings of this study, additional work was performed to ascertain the potential of using inexpensive inorganic sorbents to control mercury emissions from coal-fired power plants without adverse impact on the salability fly ash, which is one of the major drawbacks of current control technologies based on activated carbon.

  11. Studies on the practical application of producer gas from agricultural residues as supplementary fuel for diesel engines

    SciTech Connect (OSTI)

    Cruz, I.E.

    1980-01-01

    Gasification of various agricultural residues in down-draft, fixed bed gas producers and the utilization of the gas in small diesel engines converted for dual-fuel operation were studied at the College of Engineering, University of the Philippines. Such agricultural residues as coconut shells, wood waste, rice hulls and corn cobs were readily gasified in gas producers of simple design. Cleaning of the gas before its use in diesel engines presented some problems. Use of charcoal in the gas producers to provide gas to a 5-brake horsepower single cylinder engine and a 65-brake horsepower six cylinder engine proved satisfactory. With charcoal as fuel, the percentage of the total energy from diesel oil replaced by producer gas and utilized in the single cylinder engine was higher (79%) compared to that in the six cylinder engine (73%). The thermal efficiency of the bigger gas producer, however was significantly better (85%) compared to the smaller gas producer (70%). The total gasification rate of the bigger reactor (20 kg/h) was 8 times that (2.5 kg/h) of the smaller reactor.

  12. Texas Bi-Fuel Liquefied Petroleum Gas Pickup Study: Final Report

    SciTech Connect (OSTI)

    Huang, Y.; Matthews, R. D.; Popova, E. T.

    1999-05-24

    Alternative fuels may be an effective means for decreasing America's dependence on imported oil; creating new jobs; and reducing emissions of greenhouse gases, exhaust toxics, and ozone-forming hydrocarbons. However, data regarding in-use fuel economy and maintenance characteristics of alternative fuel vehicles (AFVs) have been limited in availability. This study was undertaken to compare the operating and maintenance characteristics of bi-fuel vehicles (which use liquefied petroleum gas, or propane, as the primary fuel) to those of nominally identical gasoline vehicles. In Texas, liquefied petroleum gas is one of the most widely used alternative fuels. The largest fleet in Texas, operated by the Texas Department of Transportation (TxDOT), has hundred of bi-fuel (LPG and gasoline) vehicles operating in normal daily service. The project was conducted over a 2-year period, including 18 months (April 1997-September 1998) of data collection on operations, maintenance, and fuel consumption of the vehicles under study. This report summarizes the project and its results.

  13. Third report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

    SciTech Connect (OSTI)

    Loar, J.M. [ed.] [ed.; Adams, S.M.; Bailey, R.D. [and others] [and others

    1994-03-01

    As a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1985, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC); selected tributaries of WOC, including Fifth Creek, First Creek, Melton Branch, and Northwest Tributary; and the Clinch River. The BMAP currently consists of six major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs at ORNL. These are (1) toxicity monitoring, (2) bioaccumulation monitoring of nonradiological contaminants in aquatic biota, (3) biological indicator studies, (4) instream ecological monitoring, (5) assessment of contaminants in the terrestrial environment, and (6) radioecology of WOC and White Oak Lake (WOL). The investigation of contaminant transport, distribution, and fate in the WOC embayment-Clinch River-Watts Bar Reservoir system was originally a task of the BMAP but, in 1988, was incorporated into the Resource Conservation and Recovery Act Facility Investigation for the Clinch River, a separate study to assess offsite contamination from all three Department of Energy facilities in Oak Ridge.

  14. Gas jet disruption mitigation studies on Alcator C-Mod and DIII-D

    E-Print Network [OSTI]

    Hollmann, E. M.

    High-pressure noble gas jet injection is a mitigation technique which potentially satisfies the requirements of fast response time and reliability, without degrading subsequent discharges. Previously reported gas jet ...

  15. Experimental study of rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine 

    E-Print Network [OSTI]

    Na, Uhn Joo

    1996-01-01

    The rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine were investigated experimentally. Rotordynamic model(XLROTOR) for Gas Generator and Power Turbine were constructed. The XLROTOR response plots with changing...

  16. Technology Solutions Case Study: Improving the Field Performance of Natural Gas Furnaces

    SciTech Connect (OSTI)

    2013-11-01

    The objective of this project is to examine the impact that common installation practices and age-induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE. PARR identified twelve furnaces of various ages and efficiencies that were operating in residential homes in the Des Moines Iowa metropolitan area and worked with a local HVAC contractor to retrieve them and test them for steady-state efficiency and AFUE in the lab. Prior to removal, system airflow, static pressure, equipment temperature rise, and flue loss measurements were recorded for each furnace. After removal from the field the furnaces were transported to the Gas Technology Institute (GTI) laboratory, where PARR conducted steady-state efficiency and AFUE testing. The test results show that steady-state efficiency in the field was 6.4% lower than that measured for the same furnaces under standard conditions in the lab, which included tuning the furnace input and air flow rate. Comparing AFUE measured under ASHRAE standard conditions with the label value shows no reduction in efficiency for the furnaces in this study over their 15 to 24 years of operation when tuned to standard conditions. Further analysis of the data showed no significant correlation between efficiency change and the age or the rated efficiency of the furnace.

  17. Studies Related to Chemical Mechanisms of Gas Formation in Hanford High-Level Nuclear Wastes

    SciTech Connect (OSTI)

    E. Kent Barefield; Charles L. Liotta; Henry M. Neumann

    2002-04-08

    The objective of this work is to develop a more detailed mechanistic understanding of the thermal reactions that lead to gas production in certain high-level waste storage tanks at the Hanford, Washington site. Prediction of the combustion hazard for these wastes and engineering parameters for waste processing depend upon both a knowledge of the composition of stored wastes and the changes that they undergo as a result of thermal and radiolytic decomposition. Since 1980 when Delagard first demonstrated that gas production (H2and N2O initially, later N2 and NH3)in the affected tanks was related to oxidative degradation of metal complexants present in the waste, periodic attempts have been made to develop detailed mechanisms by which the gases were formed. These studies have resulted in the postulation of a series of reactions that account for many of the observed products, but which involve several reactions for which there is limited, or no, precedent. For example, Al(OH)4 has been postulated to function as a Lewis acid to catalyze the reaction of nitrite ion with the metal complexants, NO is proposed as an intermediate, and the ratios of gaseous products may be a result of the partitioning of NO between two or more reactions. These reactions and intermediates have been the focus of this project since its inception in 1996.

  18. Studies on gas breakdown in pulsed radio frequency atmospheric pressure glow discharges

    SciTech Connect (OSTI)

    Huo, W. G. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China) [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China); School of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029 (China); Jian, S. J.; Yao, J.; Ding, Z. F., E-mail: zfding@dlut.edu.cn [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China)

    2014-05-15

    In pulsed RF atmospheric pressure glow discharges, the gas breakdown judged by the rapid drop in the amplitude of the pulsed RF voltage is no longer universally true. The steep increment of the plasma-absorbed RF power is proposed to determine the gas breakdown. The averaged plasma-absorbed RF power over a pulse period is used to evaluate effects of the preceding pulsed RF discharge on the breakdown voltage of the following one, finding that the breakdown voltage decreases with the increment in the averaged plasma-absorbed RF power under constant pulse duty ratio. Effects of the pulse off-time on the breakdown voltage and the breakdown delay time are also studied. The obtained dependence of the breakdown voltage on the pulse off-time is indicative of the transitional plasma diffusion processes in the afterglow. The breakdown voltage varies rapidly as the plasma diffuses fast in the region of moderate pulse off-time. The contribution of nitrogen atom recombination at the alumina surface is demonstrated in the prolonged memory effect on the breakdown delay time vs. the pulse off-time and experimentally validated by introducing a trace amount of nitrogen into argon at short and long pulse off-times.

  19. Landfill gas study performance on a IC Engine with addition Liubov Melnikova

    E-Print Network [OSTI]

    Columbia University

    of the methods of catalytic reforming of portion of landfill gas and an experiment conducted to validate

  20. MULTI-TRANSITION STUDY OF M51'S MOLECULAR GAS SPIRAL ARMS

    SciTech Connect (OSTI)

    Schinnerer, E. [MPI for Astronomy, Koenigstuhl 17, 69117 Heidelberg (Germany); Weiss, A. [MPI for Radioastronomy, Auf dem Huegel 69, 53121 Bonn (Germany); Aalto, S. [Department of Radio and Space Science, Chalmers University of Technology, SE-412 96 Goeteborg (Sweden); Scoville, N. Z. [California Institute of Technology, MC 249-17, Pasadena, CA 91125 (United States)

    2010-08-20

    Two selected regions in the molecular gas spiral arms in M51 were mapped with the Owens Valley Radio Observatory (OVRO) mm-interferometer in the {sup 12}CO(2-1), {sup 13}CO(1-0), C{sup 18}O(1-0), HCN(1-0), and HCO+(1-0) emission lines. The CO data have been combined with the {sup 12}CO(1-0) data from Aalto et al. covering the central 3.5 kpc to study the physical properties of the molecular gas. All CO data cubes were short spacing corrected using IRAM 30 m ({sup 12}CO(1-0): NRO 45 m) single-dish data. A large velocity gradient analysis finds that the giant molecular clouds (GMCs) are similar to Galactic GMCs when studied at 180 pc (120 pc) resolution with an average kinetic temperature of T{sub kin} = 20(16) K and H{sub 2} density of n(H{sub 2}) = 120(240) cm{sup -3} when assuming virialized clouds (a constant velocity gradient dv/dr). The associated conversion factor between H{sub 2} mass and CO luminosity is close to the Galactic value for most regions analyzed. Our findings suggest that the GMC population in the spiral arms of M51 is similar to those of the Milky Way and therefore the strong star formation occurring in the spiral arms has no strong impact on the molecular gas in the spiral arms. Extinction inferred from the derived H{sub 2} column density is very high (A{sub V} about 15-30 mag), about a factor of 5-10 higher than the average value derived toward H II regions. Thus, a significant fraction of the ongoing star formation could be hidden inside the dust lanes of the spiral arms. A comparison of MIPS 24 {mu}m and H{alpha} data, however, suggests that this is not the case and most of the GMCs studied here are not (yet) forming stars. We also present low (4.''5) resolution OVRO maps of the HCN(1-0) and HCO+(1-0) emission at the location of the brightest {sup 12}CO(1-0) peak.

  1. Estimating U.S. Methane Emissions from the Natural Gas Supply Chain. Approaches, Uncertainties, Current Estimates, and Future Studies

    SciTech Connect (OSTI)

    Heath, Garvin; Warner, Ethan; Steinberg, Daniel; Brandt, Adam

    2015-08-01

    A growing number of studies have raised questions regarding uncertainties in our understanding of methane (CH4) emissions from fugitives and venting along the natural gas (NG) supply chain. In particular, a number of measurement studies have suggested that actual levels of CH4 emissions may be higher than estimated by EPA" tm s U.S. GHG Emission Inventory. We reviewed the literature to identify the growing number of studies that have raised questions regarding uncertainties in our understanding of methane (CH4) emissions from fugitives and venting along the natural gas (NG) supply chain.

  2. Overview of Two Hydrogen Energy Storage Studies: Wind Hydrogen in California and Blending in Natural Gas Pipelines (Presentation)

    SciTech Connect (OSTI)

    Melaina, M. W.

    2013-05-01

    This presentation provides an overview of two NREL energy storage studies: Wind Hydrogen in California: Case Study and Blending Hydrogen Into Natural Gas Pipeline Networks: A Review of Key Issues. The presentation summarizes key issues, major model input assumptions, and results.

  3. Experimental and theoretical studies of isothermal upward gas-liquid flows in vertical tubes

    SciTech Connect (OSTI)

    Fernandes, R.C.

    1981-01-01

    In two-phase flow technolgy, two important problems exist which must be solved as a function of the various physical and system parameters associated with the phenomenon, and which stand as prerequisites for proper modelling of two-phase processes: Prediction of the flow pattern under existing operating conditions and prediction of the holdup for each given flow pattern. Modelling studies of steady isothermal upward gas-liquid flows in vertical pipes, at low pressures, were undertaken. Experimental data on liquid holdup over a wide range of flow rates were taken for all observed flow patterns-bubbly, slug, churn, and annular - by means of a specially designed Quick-Closing Valves System. This technique also allowed the detection of a unique phenomenon occurring in the form of fast-flowing slugs of gas-liquid mixture, in both the churn and annular flow patterns, which was called the lump phenomenon. The lump holdup was measured and a qualitative theory regarding the nature, formation and propagation of these structures was proposed. A photographic method was applied to the slug flow pattern in order to determine both the rise velocity and length of Taylor bubbles and liquid slugs characteristic of this flow regime. Assisted by the measured data, flow pattern-based physical models were developed for predicting holdup of bubbly flows and the detailed structure of slug flows. The latter was accomplished by means of a fairly complete analysis which enabled the prediction of several variables of interest such as void fractions, velocities, film thicknesses and the length ratio between Taylor bubbles and liquid slugs. The average holdup for churn flow was predicted by directly applying the slug flow model to that flow pattern. A simplified framework for calculating the holdup in annular flows was also proposed. The comparison between theory and experiment showed that for bubbly, slug and churn flows the predicted results are in good agreement with the data.

  4. Analysis and Methane Gas Separations Studies for City of Marsing, Idaho An Idaho National Laboratory Technical Assistance Program Study

    SciTech Connect (OSTI)

    Christopher Orme

    2012-08-01

    Introduction and Background Large amounts of methane in well water is a wide spread problem in North America. Methane gas from decaying biomass and oil and gas deposits escape into water wells typically through cracks or faults in otherwise non-porous rock strata producing saturated water systems. This methane saturated water can pose several problems in the delivery of drinking water. The problems range from pumps vapor locking (cavitating), to pump houses exploding. The City of Marsing requested Idaho National Laboratory (INL) to assist with some water analyses as well as to provide some engineering approaches to methane capture through the INL Technical Assistance Program (TAP). There are several engineering approaches to the removal of methane and natural gas from water sources that include gas stripping followed by compression and/or dehydration; membrane gas separators coupled with dehydration processes, membrane water contactors with dehydration processes.

  5. Preliminary Study of Strong-Sludge Gas Retention and Release Mechanisms in Clay Simulants

    SciTech Connect (OSTI)

    Gauglitz, Phillip A.; Buchmiller, William C.; Probert, Samuel G.; Owen, Antionette T.

    2010-10-12

    The Hanford Site has 28 double-shell tanks (DSTs) and 149 single-shell tanks (SSTs) containing radioactive wastes that are complex mixes of radioactive and chemical products. The mission of the Department of Energy’s River Protection Project is to retrieve and treat the Hanford tank waste for disposal and close the tank farms. A key aspect of the mission is to retrieve and transfer waste from the SSTs, which are at greater risk for leaking, into DSTs for interim storage until the waste is transferred to and treated in the Waste Treatment and Immobilization Plant. There is, however, limited space in the existing DSTs to accept waste transfers from the SSTs, and approaches to overcoming the limited DST space will benefit the overall mission. The purpose of this study is to summarize and analyze the key previous experiment that forms the basis for the relaxed controls and to summarize initial progress and results on new experiments focused on understanding the conditions that result in low gas retention. The work is ongoing; this report provides a summary of the initial findings. The previous large-scale test used about 50 m3 of sediment, which would be unwieldy for doing multiple parametric experiments. Accordingly, experiments will begin with smaller-scale tests to determine whether the desired mechanisms can be studied without the difficulty of conducting very large experiments.

  6. Experimental and numerical study of gas dynamic window for electron beam transport into the space with increased pressure

    SciTech Connect (OSTI)

    Skovorodko, P. A.; Sharafutdinov, R. G.

    2014-12-09

    The paper is devoted to experimental and numerical study of the gas jet technical device for obtaining axisymmetric flow with low pressure in its near axis region. The studied geometry of the device is typical of that used in the plasma generator consisting of an electron gun with a hollow (plasma) cathode and a double supersonic ring nozzle. The geometry of the nozzles as well as the relation between the gas flow rates through the nozzles providing the electron beam extraction into the region with increased pressure are tested both experimentally and numerically. The maximum external pressure of about 0.25 bar that does not disturb the electron beam is achieved.

  7. Wax precipitation for gas condensate fluids was studied in detail with a thermodynamic model. It was found that the precipitated

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    Summary Wax precipitation for gas condensate fluids was studied in detail with a thermodynamic model. It was found that the precipitated wax phase can exhibit retrograde phenomena similar of precipitated wax may first increase, then decrease, then increase again. The effect of pressure on wax

  8. Experimental and theoretical study of the gas phase reaction of ethynyl radical with methane HCBC CH4

    E-Print Network [OSTI]

    Nguyen, Minh Tho

    Experimental and theoretical study of the gas phase reaction of ethynyl radical with methane HCBC September 2000 Abstract Absolute rate coecients of the reaction of ethynyl radical with methane were importance. In this work, we set out to investigate the reactivity of ethynyl radicals to- wards methane

  9. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Climate Action Partnership. Contribution of Food Greenhouse Gas Emissions

    E-Print Network [OSTI]

    similar to the Land and Food Systems (LFS) Orchard Garden, 0.019 tons of Carbon Dioxide (CO2) emissions an external source. This study attempts to quantify the GHG emissions from the transportation of the food Partnership. Contribution of Food Greenhouse Gas Emissions Reductions: Moving UBC Beyond Climate Neutral

  10. A setup for Ba-ion extraction from high pressure Xe gas for double-beta decay studies with EXO

    E-Print Network [OSTI]

    Gratta, Giorgio

    . Efficient extraction and detection of Ba ions, the decay product of 136 Xe, would allow for a background of the decay product 136 Ba++ allows dif- ferentiation between bb decays and natural background and henceA setup for Ba-ion extraction from high pressure Xe gas for double-beta decay studies with EXO T

  11. Decreasing Soft Costs for Solar Photovoltaics by Improving the Interconnection Process. A Case Study of Pacific Gas and Electric

    SciTech Connect (OSTI)

    Ardani, Kristen; Margolis, Robert

    2015-09-01

    As of the end of 2014, Pacific Gas and Electric (PG&E) had connected over 130,000 DG PV systems in its service territory, more than any other utility in the U.S. In this case study, we examine how PG&E achieved a faster, more efficient interconnection approval process despite rising application volumes.

  12. The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study

    E-Print Network [OSTI]

    Tobin, Roger G.

    active transition metals such as platinum and palladium, show great promise as sen- sors for hydrogenThe role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh with nonporous platinum gates. The devices studied are shown to be sensitive both to hydrogen and to propene. All

  13. An integrated assessment of air pollutant abatement opportunities in a computable general equilibrium framework

    E-Print Network [OSTI]

    Waugh, C. (Caleb Joseph)

    2012-01-01

    Air pollution and anthropogenic greenhouse gas emission reduction policies are desirable to reduce smog, tropospheric concentrations of ozone precursors, acid rain, and other adverse effects on human health, the environment, ...

  14. A study of the effects of eccentricity on honeycomb annular gas seals 

    E-Print Network [OSTI]

    Weatherwax, Mark

    2001-01-01

    Results are presented which show the effects of eccentricity on high pressure honeycomb and smooth annular gas seals. The results of the experiments indicate the ability to utilize centered seal solutions for rotordynamic coefficients and seal...

  15. Experimental and simulation studies of sequestration of supercritical carbon dioxide in depleted gas reservoirs 

    E-Print Network [OSTI]

    Seo, Jeong Gyu

    2004-09-30

    he feasibility of sequestering supercritical CO2 in depleted gas reservoirs. The experimental runs involved the following steps. First, the 1 ft long by 1 in. diameter carbonate core is inserted into a viton Hassler sleeve and placed inside...

  16. Meeting an 80% Reduction in Greenhouse Gas Emissions from Transportation by 2050: A Case Study in California

    E-Print Network [OSTI]

    Yang, Christopher; McCollum, David L; McCarthy, Ryan; Leighty, Wayne

    2009-01-01

    an 80% reduction in greenhouse gas emissions from ,Board, 2008. California Greenhouse Gas Emission Inventory.A. , 2003. Reducing Greenhouse Gas Emissions from US

  17. Study of the one dimensional electron gas arrays confined by steps in vicinal GaN/AlGaN heterointerfaces

    SciTech Connect (OSTI)

    Li, Huijie E-mail: sh-yyang@semi.ac.cn; Zhao, Guijuan; Liu, Guipeng; Wei, Hongyuan; Jiao, Chunmei; Yang, Shaoyan E-mail: sh-yyang@semi.ac.cn; Wang, Lianshan; Zhu, Qinsheng

    2014-05-21

    One dimensional electron gas (1DEG) arrays in vicinal GaN/AlGaN heterostructures have been studied. The steps at the interface would lead to the lateral barriers and limit the electron movement perpendicular to such steps. Through a self-consistent Schrödinger-Poisson approach, the electron energy levels and wave functions were calculated. It was found that when the total electron density was increased, the lateral barriers were lowered due to the screening effects by the electrons, and the electron gas became more two-dimension like. The calculated 1DEG densities were compared to the experimental values and good agreements were found. Moreover, we found that a higher doping density is more beneficial to form 1-D like electron gas arrays.

  18. Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish

    SciTech Connect (OSTI)

    Neitzel, Duane A.

    2009-09-14

    Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including changes in pressure as they pass through turbines and dissolved gas supersaturation (resulting from the release of water from the spillway). To examine pressure changes as a source of turbine-passage injury and mortality, Pacific Northwest National Laboratory scientists conducted specific tests using a hyperbaric chamber. Tests were designed to simulate Kaplan turbine passage conditions and to quantify the response of fish to rapid pressure changes, with and without the complication of fish being acclimated to gas-supersaturated water.

  19. What is shale gas? | Department of Energy

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

    What is shale gas? What is shale gas? What is shale gas? More Documents & Publications Natural Gas from Shale: Questions and Answers Shale Gas Glossary Natural Gas Study Guide -...

  20. The Effects of CO2 Abatement Policies on Power System Expansion

    E-Print Network [OSTI]

    Victoria, University of

    owes a great debt to cheap plentiful energy. Historically, abundant and energy dense materials such as coal, oil and more recently natural gas, have played an important role in powering our economies prices and load profiles. - Investment in nuclear capacity is very responsive to the severity of CO2

  1. Water–gas shift on gold catalysts: catalyst systems and fundamental studies

    E-Print Network [OSTI]

    Tao, Franklin Feng; Ma, Zhen

    2013-06-18

    attention. The water–gas shift reaction (WGSR: CO + H2O = CO2 + H2) is important for removing CO and upgrading the purity of H2 for fuel cell applications, ammonia synthesis, and selective hydrogenation processes. In recent years, much attention has been...

  2. Automatic isochoric apparatus for PVT and phase equilibrium studies of natural gas mixtures 

    E-Print Network [OSTI]

    Zhou, Jingjun

    2009-05-15

    We have developed a new automatic apparatus for the measurement of the phase equilibrium and pVT properties of natural gas mixtures in our laboratory. Based on the isochoric method, the apparatus can operate at temperature from 200 K to 500 K...

  3. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Induction versus Gas Stovetops

    E-Print Network [OSTI]

    ...........................................................................Page. 3 2.1 Materials of Construction 2.1.1 Induction Stove Materials 2.1.2 Gas Stove Materials 2.2 Energy Kouwenhoven Kjell Raemdonck #12;ii ABSTRACT The new Student Union Building being constructed at the University of British Columbia will have several new kitchens in order to cook for the growing population of students

  4. Impact study on the use of biomass-derived fuels in gas turbines for power generation

    SciTech Connect (OSTI)

    Moses, C.A.; Bernstein, H.

    1994-01-01

    This report evaluates the properties of fuels derived from biomass, both gaseous and liquid, against the fuel requirements of gas turbine systems for gernating electrical power. The report attempts to be quantitative rather than merely qualitative to establish the significant variations in the properties of biomass fuels from those of conventional fuels. Three general categories are covered: performance, durability, and storage and handling.

  5. Numerical-based Study of Spent Acid Blockage Damage in Acidized Gas Wells 

    E-Print Network [OSTI]

    Zhang, Qi

    2013-12-04

    Aqueous fluids introduced by different stimulation treatments cause water blockage in the near-wellbore region of wells. This water blockage acts the same as formation damage when the well is put back on production. One of the examples is when gas...

  6. Kinetic simulation studies of laser-triggering in the Z gas switch

    SciTech Connect (OSTI)

    Welch, D. R.; Rose, D. V.; Thoma, C.; Clark, R. E.; Miller, C.; Madrid, E. A.; Zimmerman, W. R. [Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States)] [Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States); Rambo, P. K.; Schwarz, J.; Savage, M.; Atherton, B. W. [Sandia National Laboratories, Albuquerque, New Mexico 87185-1196 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185-1196 (United States)

    2013-08-15

    Advanced z-pinch accelerators require precise timing of multiple mega-ampere drivers to deliver terawatt power. The triggering of these drivers is now largely initiated by laser ionization of gas switches. In this paper, we discuss detailed fully kinetic simulation of the Z laser-triggered gas switch involving detailed finite-difference time-domain particle-in-cell Monte Carlo modeling of the trigger section of the switch. Other components of the accelerator from the Marx bank through the pulse-forming line are described as circuit elements. The simulations presented here build on a recently developed model of electro-negative gas breakdown and streamer propagation that included photons produced from de-excited neutrals. New effects include multi-photon ionization of the gas in a prescribed laser field. The simulations show the sensitivity of triggering to laser parameters including focal plane within the anode-cathode gap of the trigger section of the switch, intensity at focus, and laser pulse length. Detailed electromagnetic simulations of the trigger section with circuit modeling of the upstream and downstream components are largely in agreement with Z data and demonstrate a new capability.

  7. Alternative fuel trucks case studies: Running refuse haulers on compressed natural gas

    SciTech Connect (OSTI)

    Norton, P.; Kelly, K.

    1996-07-01

    This document details the experience of New York City`s compressed natural gas refuse haulers. These 35 ton vehicles have engines that displace 10 liters and provide 240 horsepower. Fuel economy, range, cost, maintenance, repair issues, and emissions are discussed. Photographs and figures illustrate the attributes of these alternative fuel vehicles.

  8. A study on the effect of inlet turbulence on gas mixing for single point aerosol sampling 

    E-Print Network [OSTI]

    Mohan, Anand

    2001-01-01

    of statistically steady developing flow in a straight duct. Mixing is evaluated for inlet intensities of 1.5%, 10% and 20%, achieved by introducing various bi-plane grids and for a commercial static gas mixer. Reynolds number is varied between 5000 and 16000...

  9. First-principles study of noble gas impurities and defects in UO{sub 2}

    SciTech Connect (OSTI)

    Thompson, Alexander E.; Wolverton, C.

    2011-10-01

    We performed a series of density functional theory + U (DFT + U) calculations to explore the energetics of various defects in UO{sub 2}, i.e., noble gases (He, Ne, Ar, Kr, Xe), Schottky defects, and the interaction between these defects. We found the following: (1) collinear antiferromagnetic UO{sub 2} has an energy-lowering distortion of the oxygen sublattice from ideal fluorite positions; (2) DFT + U qualitatively affects the formation volume of Schottky defect clusters in UO{sub 2} (without U the formation volume is negative, but including U the formation volume is positive); (3) the configuration of the Schottky defect cluster is dictated by a competition between electrostatic and surface energy effects; (4) the incorporation energy of inserting noble gas atoms into an interstitial site has a strong dependence on the volume of the noble gas atom, corresponding to the strain it causes in the interstitial site, from He (0.98 eV) to Xe (9.73 eV); (5) the energetics of each of the noble gas atoms incorporated in Schottky defects show strong favorable binding, due to strain relief associated with moving the noble gas atom from the highly strained interstitial position into the vacant space of the Schottky defect; and (6) for argon, krypton, and xenon, the binding energy of a noble gas impurity with the Schottky defect is larger than the formation energy of a Schottky defect, thereby making the formation of Schottky defects thermodynamically favorable in the presence of these large impurities.

  10. Stratified charge and homogeneous charge flowfields in natural gas fueled rotary engines. Interim report on task 2. 1. 7 combustion/stratification studies'

    SciTech Connect (OSTI)

    Abraham, J.

    1988-12-09

    Natural gas stratification and combustion in a rotary engine are studied with a three-dimensional model. The validated model could be employed as a useful tool in selection of optimum spark plug locations, number of spark plugs, spark timings, pocket geometry, and optimization studies of natural gas fired rotary engines.

  11. Development of the CD symcap platform to study gas-shell mix in implosions at the National Ignition Facility

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

    Casey, D. T.; Smalyuk, V. A.; Tipton, R. E.; Pino, J. E.; Grim, G. P.; Remington, B. A.; Rowley, D. P.; Weber, S. V.; Barrios, M.; Benedetti, L. R.; et al

    2014-09-09

    Surrogate implosions play an important role at the National Ignition Facility (NIF) for isolating aspects of the complex physical processes associated with fully integrated ignition experiments. The newly developed CD Symcap platform has been designed to study gas-shell mix in indirectly driven, pure T?-gas filled CH-shell implosions equipped with 4 ?m thick CD layers. This configuration provides a direct nuclear signature of mix as the DT yield (above a characterized D contamination background) is produced by D from the CD layer in the shell, mixing into the T-gas core. The CD layer can be placed at different locations within themore »CH shell to probe the depth and extent of mix. CD layers placed flush with the gas-shell interface and recessed up to 8 ?m have shown that most of the mix occurs at the inner-shell surface. In addition, time-gated x-ray images of the hotspot show large brightly-radiating objects traversing through the hotspot around bang-time, which are likely chunks of CH/CD plastic. This platform is a powerful new capability at the NIF for understanding mix, one of the key performance issues for ignition experiments.« less

  12. Development of the CD symcap platform to study gas-shell mix in implosions at the National Ignition Facility

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

    Casey, D. T. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Smalyuk, V. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Tipton, R. E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Pino, J. E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Grim, G. P. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Remington, B. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Rowley, D. P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Weber, S. V. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Barrios, M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Benedetti, L. R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bleuel, D. L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bond, E. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bradley, D. K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Caggiano, J. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Callahan, D. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Cerjan, C. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Chen, K. C. [General Atomics, San Diego, CA (United States); Edgell, D. H. [Laboratory for Laser Energetics, University of Rochester, Rochester, NY (United States); Edwards, M. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Fittinghoff, D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Frenje, J. A. [MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States); Gatu-Johnson, M. [MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States); Glebov, V. Y. [Laboratory for Laser Energetics, University of Rochester, Rochester, NY (United States); Glenn, S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Guler, N. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Haan, S. W. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Hamza, A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Hatarik, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Herrmann, H. W. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Hoover, D. [General Atomics, San Diego, CA (United States); Hsing, W. W. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Izumi, N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kervin, P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Khan, S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kilkenny, J. D. [General Atomics, San Diego, CA (United States); Kline, J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Knauer, J. [Laboratory for Laser Energetics, University of Rochester, Rochester, NY (United States); Kyrala, G. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Landen, O. L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Ma, T. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); MacPhee, A. G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); McNaney, J. M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Mintz, M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Moore, A. [AWE Aldermaston, Reading, Berkshire, (United Kingdom); Nikroo, A. [General Atomics, San Diego, CA (United States); Pak, A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Parham, T. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Petrasso, R. [MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States); Rinderknecht, H. G. [MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States)

    2014-09-01

    Surrogate implosions play an important role at the National Ignition Facility (NIF) for isolating aspects of the complex physical processes associated with fully integrated ignition experiments. The newly developed CD Symcap platform has been designed to study gas-shell mix in indirectly driven, pure T?-gas filled CH-shell implosions equipped with 4 ?m thick CD layers. This configuration provides a direct nuclear signature of mix as the DT yield (above a characterized D contamination background) is produced by D from the CD layer in the shell, mixing into the T-gas core. The CD layer can be placed at different locations within the CH shell to probe the depth and extent of mix. CD layers placed flush with the gas-shell interface and recessed up to 8 ?m have shown that most of the mix occurs at the inner-shell surface. In addition, time-gated x-ray images of the hotspot show large brightly-radiating objects traversing through the hotspot around bang-time, which are likely chunks of CH/CD plastic. This platform is a powerful new capability at the NIF for understanding mix, one of the key performance issues for ignition experiments.

  13. Development of the CD symcap platform to study gas-shell mix in implosions at the National Ignition Facility

    SciTech Connect (OSTI)

    Casey, D. T.; Smalyuk, V. A.; Tipton, R. E.; Pino, J. E.; Grim, G. P.; Remington, B. A.; Rowley, D. P.; Weber, S. V.; Barrios, M.; Benedetti, L. R.; Bleuel, D. L.; Bond, E. J.; Bradley, D. K.; Caggiano, J. A.; Callahan, D. A.; Cerjan, C. J.; Chen, K. C.; Edgell, D. H.; Edwards, M. J.; Fittinghoff, D.; Frenje, J. A.; Gatu-Johnson, M.; Glebov, V. Y.; Glenn, S.; Guler, N.; Haan, S. W.; Hamza, A.; Hatarik, R.; Herrmann, H. W.; Hoover, D.; Hsing, W. W.; Izumi, N.; Kervin, P.; Khan, S.; Kilkenny, J. D.; Kline, J.; Knauer, J.; Kyrala, G.; Landen, O. L.; Ma, T.; MacPhee, A. G.; McNaney, J. M.; Mintz, M.; Moore, A.; Nikroo, A.; Pak, A.; Parham, T.; Petrasso, R.; Rinderknecht, H. G.; Sayre, D. B.; Schneider, M.; Stoeffl, W.; Tommasini, R.; Town, R. P.; Widmann, K.; Wilson, D. C.; Yeamans, C. B.

    2014-09-09

    Surrogate implosions play an important role at the National Ignition Facility (NIF) for isolating aspects of the complex physical processes associated with fully integrated ignition experiments. The newly developed CD Symcap platform has been designed to study gas-shell mix in indirectly driven, pure T?-gas filled CH-shell implosions equipped with 4 ?m thick CD layers. This configuration provides a direct nuclear signature of mix as the DT yield (above a characterized D contamination background) is produced by D from the CD layer in the shell, mixing into the T-gas core. The CD layer can be placed at different locations within the CH shell to probe the depth and extent of mix. CD layers placed flush with the gas-shell interface and recessed up to 8 ?m have shown that most of the mix occurs at the inner-shell surface. In addition, time-gated x-ray images of the hotspot show large brightly-radiating objects traversing through the hotspot around bang-time, which are likely chunks of CH/CD plastic. This platform is a powerful new capability at the NIF for understanding mix, one of the key performance issues for ignition experiments.

  14. Development of the CD Symcap platform to study gas-shell mix in implosions at the National Ignition Facility

    SciTech Connect (OSTI)

    Casey, D. T.; Smalyuk, V. A.; Tipton, R. E.; Pino, J. E.; Remington, B. A.; Rowley, D. P.; Weber, S. V.; Barrios, M.; Benedetti, L. R.; Bleuel, D. L.; Bond, E. J.; Bradley, D. K.; Caggiano, J. A.; Callahan, D. A.; Cerjan, C. J.; Edwards, M. J.; Fittinghoff, D.; Glenn, S.; Haan, S. W.; Hamza, A.; and others

    2014-09-15

    Surrogate implosions play an important role at the National Ignition Facility (NIF) for isolating aspects of the complex physical processes associated with fully integrated ignition experiments. The newly developed CD Symcap platform has been designed to study gas-shell mix in indirectly driven, pure T{sub 2}-gas filled CH-shell implosions equipped with 4 ?m thick CD layers. This configuration provides a direct nuclear signature of mix as the DT yield (above a characterized D contamination background) is produced by D from the CD layer in the shell, mixing into the T-gas core. The CD layer can be placed at different locations within the CH shell to probe the depth and extent of mix. CD layers placed flush with the gas-shell interface and recessed up to 8??m have shown that most of the mix occurs at the inner-shell surface. In addition, time-gated x-ray images of the hotspot show large brightly radiating objects traversing through the hotspot around bang-time, which are likely chunks of CH/CD plastic. This platform is a powerful new capability at the NIF for understanding mix, one of the key performance issues for ignition experiments.

  15. A Mechanistic Study of Chemically Modified Inorganic Membranes for Gas and Liquid Separations

    SciTech Connect (OSTI)

    Way, J Douglas

    2011-01-21

    This final report will summarize the progress made during the period August 1, 1993 - October 31, 2010 with support from DOE grant number DE-FG03-93ER14363. The objectives of the research have been to investigate the transport mechanisms in micro- and mesoporous, metal oxide membranes and to examine the relationship between the microstructure of the membrane, the membrane surface chemistry, and the separation performance of the membrane. Examples of the membrane materials under investigation are the microporous silica hollow fiber membrane manufactured by PPG Industries, chemically modified mesoporous oxide membranes, and polymer membranes containing microporous oxides (mixed matrix membranes). Analytical techniques such as NMR, FTIR and Raman spectroscopy, thermal analysis, and gas adsorption were used to investigate membrane microstructure and to probe the chemical interactions occurring at the gas-membrane interface.

  16. Study of high pressure gas filled RF cavities for muon collider

    E-Print Network [OSTI]

    Yonehara, Katsuya

    2015-01-01

    Muon collider is a considerable candidate of the next-generation high-energy lepton collider machine. Operating an RF cavity in a multi-Tesla magnet is a critical requirement in a muon accelerator and a cooling channel. However, the maximum RF gradient in a vacuum RF cavity is strongly limited by an external magnetic field. Dense hydrogen gas filled RF cavity has been proposed since it is functional of generating a high RF accelerating gradient in a strong magnetic field and making an ionization cooling process at the same time. A critical issue of the cavity is a beam- induced plasma that consumes a considerable amount of RF power. The gas filled RF test cell was made and measured the RF loading due to a beam-induced plasma by using an intense proton beam at Fermilab. By doping an electronegative gas in dense hydrogen, the plasma loading effect is significantly mitigated. The result shows that the cavity is functional with a muon collider beam. Recent progress is shown in this presentation.

  17. X-ray photoelectron spectroscopy studies on Pd doped SnO{sub 2} liquid petroleum gas sensor

    SciTech Connect (OSTI)

    Phani, A.R.

    1997-10-01

    The present investigation deals with the electrical response of palladium doped tin oxide, as a means of improving the selectivity for liquid petroleum gas (LPG) in the presence of CO, CH{sub 4}. The sensor element with the composition of Pd(1.5 wt{percent}) in the base material SnO{sub 2} sintered at 800{degree}C, has shown a high sensitivity towards LPG with a negligible cross interference of CO and CH{sub 4} at an operating temperature of 350{degree}C. This greatly suggests the possibility of utilizing the sensor for the detection of LPG. X-ray photoelectron spectroscopy studies have been carried out to determine the possible chemical species involved in the gas-solid interaction and the enhancing mechanism of the Pd doped SnO{sub 2} sensor element, towards LPG sensitivity. {copyright} {ital 1997 American Institute of Physics.}

  18. NETL Gas Migration Study to Advance Understanding of Responsible Oil and

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment of Energy009 248.2 254.8QuestionnaireNESTNETL FNatural

  19. Review of U.S. and European Regional Modeling Studies of Policies Intended to Reduce Transportation Greenhouse Gas Emissions

    E-Print Network [OSTI]

    Johnston, Robert A.

    2008-01-01

    emissions of pollutants and greenhouse gases are possible (accidents, noise, and greenhouse gas emissions. We reviewto Reduce Transportation Greenhouse Gas Emissions Robert A.

  20. Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study

    SciTech Connect (OSTI)

    Shenker, J.; Garland, R.; Horazak, D.; Seifert, F.; Wenglarz, R.

    1992-07-01

    Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100[degrees]F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600[degrees]F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.

  1. Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine industrial plant study

    SciTech Connect (OSTI)

    Shenker, J.; Garland, R.; Horazak, D.; Seifert, F.; Wenglarz, R.

    1992-07-01

    Second-Generation Pressurized Fluidized Bed Combustion (PFBC) plants provide a coal-fired, high-efficiency, combined-cycle system for the generation of electricity and steam. The plants use lime-based sorbents in PFB combustors to meet environmental air standards without back-end gas desulfurization equipment. The second-generation system is an improvement over earlier PFBC concepts because it can achieve gas temperatures of 2100{degrees}F and higher for improved cycle efficiency while maintaining the fluidized beds at 1600{degrees}F for enhanced sulfur capture and minimum alkali release. Second-generation PFBC systems are capable of supplying the electric and steam process needs of industrial plants. The basic second-generation system can be applied in different ways to meet a variety of process steam and electrical requirements. To evaluate the potential of these systems in the industrial market, conceptual designs have been developed for six second-generation PFBC plants. These plants cover a range of electrical outputs from 6.3 to 41.5 MWe and steam flows from 46,067 to 442,337 lb/h. Capital and operating costs have been estimated for these six plants and for equivalent (in size) conventional, coal-fired atmospheric fluidized bed combustion cogeneration plants. Economic analyses were conducted to compare the cost of steam for both the second-generation plants and the conventional plants.

  2. The gas-rich disk of HR 4049: A study of the infrared spectrum

    SciTech Connect (OSTI)

    Malek, Sarah E. [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada); Cami, Jan [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 Canada and SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, CA 94034 (United States)

    2014-05-02

    Here, we present a summary of our analyses of the mid-and near-infrared spectrum of the unusual evolved binary HR 4049. We f nd that the disk is massive (M > 8 × 10{sup ?3} M{sub ?}), warm and radially extended. We also report some enrichment in {sup 17}O and {sup 18}O and a comparison of observations from Spitzer-IRS to those obtained by ISO-SWS 10 years earlier reveals that the CO{sub 2} f ux has more than doubled in this time, indicating active and ongoing chemical evolution in the circumbinary disk. Given the high column densities of the gas in the disk, we expect that the molecular gas plays a crucial role in the thermal properties of the circumbinary disk by allowing visible light to heat the dust and then trapping the IR photons emitted by the dust. This will result in higher temperatures and a more homogeneous temperature structure in the disk. Finally, we estimate a mass for the primary in HR 4049 which is too low for the star to have experienced a typical evolutionary path.

  3. A Bench Study of Intensive Care Unit Ventilators: New versus Old and Turbine-Based versus Compressed Gas-Based Ventilators

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Material: Four turbine- based ventilators and nine conventional servo-valve compressed-gas ventilators were1 A Bench Study of Intensive Care Unit Ventilators: New versus Old and Turbine-Based versus Compressed Gas-Based Ventilators Arnaud W. Thille,1 MD; Aissam Lyazidi,1 Biomed Eng MS; Jean-Christophe M

  4. Practical ways to abate air and water pollution worldwide including a unique way to significantly curb global warming

    SciTech Connect (OSTI)

    Snell, J.R.

    1998-07-01

    This paper points out that in the next 50 years it will largely be the developing countries of the world which will continue to industrialize rapidly and hence pollute the water and air of not only their countries but that this pollution is becoming global (80% of the World's population.) From the author's 25 years of consulting experience in the developing countries, their greatest need is to have available to them low cost, innovative processes for pollution abatement will be neglected and the whole world will suffer immensely. The paper discusses in some detail the type of innovative low cost methods which have successfully been used in the categories of wastewater and solid wastes and names 6 other categories where many others exist. All these innovative methods need to be discovered, listed, and tested for quality and dependability, and then made widely available. Large Environmental Engineering Universities and International Consulting Engineering firms need to be organized to undertake these important tasks. The paper also points out the connection between Global Warming and the Solid waste industry and shows how it can be controlled inexpensively by employing a new, unique, and rapid method of converting municipal refuse into methane and then using that to make electricity. Information given in this paper could lead to a vast reduction in future pollution, with the resulting better global health and at the same time save trillions of dollars.

  5. Numerical modeling of carrier gas flow in atomic layer deposition vacuum reactor: A comparative study of lattice Boltzmann models

    SciTech Connect (OSTI)

    Pan, Dongqing; Chien Jen, Tien [Department of Mechanical Engineering, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201 (United States); Li, Tao [School of Mechanical Engineering, Dalian University of Technology, Dalian 116024 (China); Yuan, Chris, E-mail: cyuan@uwm.edu [Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin 53211 (United States)

    2014-01-15

    This paper characterizes the carrier gas flow in the atomic layer deposition (ALD) vacuum reactor by introducing Lattice Boltzmann Method (LBM) to the ALD simulation through a comparative study of two LBM models. Numerical models of gas flow are constructed and implemented in two-dimensional geometry based on lattice Bhatnagar–Gross–Krook (LBGK)-D2Q9 model and two-relaxation-time (TRT) model. Both incompressible and compressible scenarios are simulated and the two models are compared in the aspects of flow features, stability, and efficiency. Our simulation outcome reveals that, for our specific ALD vacuum reactor, TRT model generates better steady laminar flow features all over the domain with better stability and reliability than LBGK-D2Q9 model especially when considering the compressible effects of the gas flow. The LBM-TRT is verified indirectly by comparing the numerical result with conventional continuum-based computational fluid dynamics solvers, and it shows very good agreement with these conventional methods. The velocity field of carrier gas flow through ALD vacuum reactor was characterized by LBM-TRT model finally. The flow in ALD is in a laminar steady state with velocity concentrated at the corners and around the wafer. The effects of flow fields on precursor distributions, surface absorptions, and surface reactions are discussed in detail. Steady and evenly distributed velocity field contribute to higher precursor concentration near the wafer and relatively lower particle velocities help to achieve better surface adsorption and deposition. The ALD reactor geometry needs to be considered carefully if a steady and laminar flow field around the wafer and better surface deposition are desired.

  6. A thermodynamic tank model for studying the effect of higher hydrocarbons on natural gas storage in metal-organic frameworks

    SciTech Connect (OSTI)

    Zhang, HD; Deria, P; Farha, OK; Hupp, JT; Snurr, RQ

    2015-01-01

    Metal-organic frameworks (MOFs) are promising materials for storing natural gas in vehicular applications. Evaluation of these materials has focused on adsorption of pure methane, although commercial natural gas also contains small amounts of higher hydrocarbons such as ethane and propane, which adsorb more strongly than methane. There is, thus, a possibility that these higher hydrocarbons will accumulate in the MOF after multiple operating (adsorption/desorption) cycles, and reduce the storage capacity. To study the net effect of ethane and propane on the performance of an adsorbed natural gas (ANG) tank, we developed a mathematical model based on thermodynamics and mass balance equations that describes the state of the tank at any instant. The required inputs are the pure-component isotherms, and mixture adsorption data are calculated using the Ideal Adsorbed Solution Theory (IAST). We focused on how the "deliverable energy'' provided by the ANG tank to the engine changed over 200 operating cycles for a sample of 120 MOF structures. We found that, with any MOF, the ANG tank performance monotonically declines during early operating cycles until a "cyclic steady state'' is reached. We determined that the best materials when the fuel is 100% methane are not necessarily the best when the fuel includes ethane and propane. Among the materials tested, some top MOFs are MOF-143 > NU-800 > IRMOF-14 > IRMOF-20 > MIL-100 > NU-125 > IRMOF-1 > NU-111. MOF-143 is predicted to deliver 5.43 MJ L-1 of tank to the engine once the cyclic steady state is reached. The model also provided insights that can assist in future work to discover more promising adsorbent materials for natural gas storage.

  7. Dry Gas Zone, Elk Hills field, Kern County, California: General reservoir study: Engineering text and exhibits: (Final report)

    SciTech Connect (OSTI)

    Not Available

    1988-08-01

    The Dry Gas Zone in the Elk Hills field is comprised of fourteen separate productive horizons deposited in the MYA Group of the San Joaquin Formation of Pliocene Age. Eighty-six separate Reservoir Units have been identified within the interval over an area roughly ten miles long and four miles wide. One basal Tulare sand, the Tulare B, was also included in the geologic study. Five earlier studies have been made of the Dry Gas Zone; each is referenced in the Appendix of this report. Most of these studies were geologic in nature, and none provided in-depth reservoir analyses. This report is made up of ten (10) separate volumes which include: engineering text and exhibits (white dot); engineering data (black dot); geologic text and tables (green dot); structure and isochore maps (light blue dot); structural cross sections (dark blue dot); stratigraphic cross sections (brown dot); geologic data sheets -book 1 (yellow dot); geologic data sheets - book 2 (orange dot); geologic data sheets - book 3 (red dot); and geologic data sheets - book 4 (pink or coral dot). Basic production, injection, pressure, and other assorted technical data were provided by the US Department of Energy engineering staff at Elk Hills. These data were accepted as furnished with no attempt being made at independent verification.

  8. Study of void fraction and mixing of immiscible liquids in a pool configuration by an upward gas flow

    SciTech Connect (OSTI)

    Casas, J.C.; Corradini, M.L. (Univ. of Wisconsin-Madison, Nuclear Engineering and Engineering Physics Dept., Madison, WI (US))

    1992-07-01

    In this paper, investigations are performed to study the mixing between immiscible liquids in a pool configuration due to an upward gas flow. A water-R113 system is sued in the bubbly/churn-turbulent regimes to determine the effects of the unagitated pool depth on layer mixing. The superficial gas velocity at which full mixing is attained is observed to increase with the pool depth, although it is concluded that this is a weak dependency. Mixing in the churn-turbulent regime is studied with Wood's metal-water and Wood's metal-silicone fluid (100 cS) as pairs of fluids. Additional past mixing data from six other fluids are also included in the data base. A criterion is proposed to determine if two liquids will entrain in bubbly or churn-turbulent flow. Correlations are derived that, for a set of given conditions, allow prediction of the mixing state (mixed or segregated) of a system. Because of the indirect method of measuring the mixed layer thickness, pool void fraction experiments are also performed. For the case of water and R113, the effect of unagitated pool depth on the void fraction is studied.

  9. Geohydrologic study of the Michigan Basin for the applicability of Jack W. McIntyre`s patented process for simultaneous gas recovery and water disposal in production wells

    SciTech Connect (OSTI)

    Maryn, S.

    1994-03-01

    Geraghty & Miller, Inc. of Midland, Texas conducted a geohydrologic study of the Michigan Basin to evaluate the applicability of Jack McIntyre`s patented process for gas recovery and water disposal in production wells. A review of available publications was conducted to identify, (1) natural gas reservoirs which generate large quantities of gas and water, and (2) underground injection zones for produced water. Research efforts were focused on unconventional natural gas formations. The Antrim Shale is a Devonian gas shale which produces gas and large quantities of water. Total 1992 production from 2,626 wells was 74,209,916 Mcf of gas and 25,795,334 bbl of water. The Middle Devonian Dundee Limestone is a major injection zone for produced water. ``Waterless completion`` wells have been completed in the Antrim Shale for gas recovery and in the Dundee Limestone for water disposal. Jack McIntyre`s patented process has potential application for the recovery of gas from the Antrim Shale and simultaneous injection of produced water into the Dundee Limestone.

  10. SC4250: Probabilistic Models in the Life Sciences Instructor: A. Abate

    E-Print Network [OSTI]

    Abate, Alessandro

    ) and Gillespie's scheme Case study: chemical reaction networks [G77, W06], gene expression and regulation [W06E) Case study: chemical reaction networks · Lecture 6 (May 30, [G96]): Conclusion of Lecture 5. Continuous/2 (see end of document) Time permitting [W06]: alternative graphical representations: Stochastic Petri

  11. Scaling Studies for High Temperature Test Facility and Modular High Temperature Gas-Cooled Reactor

    SciTech Connect (OSTI)

    Richard R. Schult; Paul D. Bayless; Richard W. Johnson; James R. Wolf; Brian Woods

    2012-02-01

    The Oregon State University (OSU) High Temperature Test Facility (HTTF) is an integral experimental facility that will be constructed on the OSU campus in Corvallis, Oregon. The HTTF project was initiated, by the U.S. Nuclear Regulatory Commission (NRC), on September 5, 2008 as Task 4 of the 5-year High Temperature Gas Reactor Cooperative Agreement via NRC Contract 04-08-138. Until August, 2010, when a DOE contract was initiated to fund additional capabilities for the HTTF project, all of the funding support for the HTTF was provided by the NRC via their cooperative agreement. The U.S. Department of Energy (DOE) began their involvement with the HTTF project in late 2009 via the Next Generation Nuclear Plant (NGNP) project. Because the NRC's interests in HTTF experiments were only centered on the depressurized conduction cooldown (DCC) scenario, NGNP involvement focused on expanding the experimental envelope of the HTTF to include steady-state operations and also the pressurized conduction cooldown (PCC).

  12. Advanced turbine systems program conceptual design and product development task 5 -- market study of the gas fired ATS. Topical report

    SciTech Connect (OSTI)

    1995-05-01

    Solar Turbines Incorporated (Solar), in partnership with the Department of Energy, will develop a family of advanced gas turbine-based power systems (ATS) for widespread commercialization within the domestic and international industrial marketplace, and to the rapidly changing electric power generation industry. The objective of the jointly-funded Program is to introduce an ATS with high efficiency, and markedly reduced emissions levels, in high numbers as rapidly as possible following introduction. This Topical Report is submitted in response to the requirements outlined in Task 5 of the Department of Energy METC Contract on Advanced Combustion Systems, Contract No, DE AC21-93MC30246 (Contract), for a Market Study of the Gas Fired Advanced Turbine System. It presents a market study for the ATS proposed by Solar, and will examine both the economic and siting constraints of the ATS compared with competing systems in the various candidate markets. Also contained within this report is an examination and analysis of Solar`s ATS and its ability to compete in future utility and industrial markets, as well as factors affecting the marketability of the ATS.

  13. Experimental Study of Gas Turbine Blade Film Cooling and Heat Transfer 

    E-Print Network [OSTI]

    Narzary, Diganta P.

    2010-10-12

    of compressor discharge air exacts a penalty on engine performance, the cooling functions must be accomplished with the smallest possible secondary air injection. This necessitates a detailed and systematic study of the various flow and geometrical parameters...

  14. Gas release during salt-well pumping: Model predictions and laboratory validation studies for soluble and insoluble gases

    SciTech Connect (OSTI)

    Peurrung, L.M.; Caley, S.M.; Gauglitz, P.A.

    1997-08-01

    The Hanford Site has 149 single-shell tanks (SSTs) containing radioactive wastes that are complex mixes of radioactive and chemical products. Of these, 67 are known or suspected to have leaked liquid from the tanks into the surrounding soil. Salt-well pumping, or interim stabilization, is a well-established operation for removing drainable interstitial liquid from SSTs. The overall objective of this ongoing study is to develop a quantitative understanding of the release rates and cumulative releases of flammable gases from SSTs as a result of salt-well pumping. The current study is an extension of the previous work reported by Peurrung et al. (1996). The first objective of this current study was to conduct laboratory experiments to quantify the release of soluble and insoluble gases. The second was to determine experimentally the role of characteristic waste heterogeneities on the gas release rates. The third objective was to evaluate and validate the computer model STOMP (Subsurface Transport over Multiple Phases) used by Peurrung et al. (1996) to predict the release of both soluble (typically ammonia) and insoluble gases (typically hydrogen) during and after salt-well pumping. The fourth and final objective of the current study was to predict the gas release behavior for a range of typical tank conditions and actual tank geometry. In these models, the authors seek to include all the pertinent salt-well pumping operational parameters and a realistic range of physical properties of the SST wastes. For predicting actual tank behavior, two-dimensional (2-D) simulations were performed with a representative 2-D tank geometry.

  15. A Technical and Economic Study of Completion Techniques In Five Emerging U.S. Gas Shale Plays 

    E-Print Network [OSTI]

    Agrawal, Archna

    2010-07-14

    , energy companies, both majors and independents, are turning to unconventional resources to produce the hydrocarbons required to meet market demand. From coalbed methane to low permeability (tight) gas reservoirs and gas shales, energy companies are making...

  16. Selective CO2 Capture from Flue Gas Using Metal-Organic Frameworks?A Fixed Bed Study

    SciTech Connect (OSTI)

    Liu, Jian; Tian, Jian; Thallapally, Praveen K.; McGrail, B. Peter

    2012-05-03

    It is important to capture carbon dioxide from flue gas which is considered to be the main reason to cause global warming. CO2/N2 separation by novel adsorbents is a promising method to reduce CO2 emission but effect of water and CO2/N2 selectivity is critical to apply the adsorbents into practical applications. A very well known, Metal Organic Framework, NiDOBDC (Ni-MOF-74 or CPO-27-Ni) was synthesized through a solvothermal reaction and the sample (500 to 800 microns) was used in a fixed bed CO2/N2 breakthrough study with and without H2O. The Ni/DOBDC pellet has a high CO2 capacity of 3.74 mol/kg at 0.15 bar and a high CO2/N2 selectivity of 38, which is much higher than those of reported MOFs and zeolites under dry condition. Trace amount of water can impact CO2 adsorption capacity as well as CO2/N2 selectivity for the Ni/DOBDC. However, Ni/DOBDC can retain a significant CO2 capacity and CO2/N2 selectivity at 0.15 bar CO2 with 3% RH water. These results indicate a promising future to use the Ni/DOBDC in CO2 capture from flue gas.

  17. Integrated seismic study of naturally fractured tight gas reservoirs. Final report, September 1991--January 1995

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1995-01-01

    The approach in this project has been to integrate the principles of rock physics into a quantitative processing and interpretation scheme that exploits, where possible, the broader spectrum of fracture zone signatures: (1) anomalous compressional and shear wave velocity; (2) Q and velocity dispersion; (3) increased velocity anisotropy; (4) amplitude vs. offset (AVO) response, and (5) variations in frequency content. As part of this the authors have attempted to refine some of the theoretical rock physics tools that should be applied in any field study to link the observed seismic signatures to the physical/geologic description of the fractured rock. The project had 3 key elements: (1) rock physics studies of the anisotropic viscoelastic signatures of fractured rocks, (2) acquisition and processing of seismic reflection field data, and (3) interpretation of seismic and well log data. The study site is in a producing field operated by Amoco and Arco at the southern boundary of the Powder River basin in Wyoming. During the winter of 1992--1993 the authors collected about 50 km of 9-component reflection seismic data and obtained existing log data from several wells in the vicinity. The paper gives background information on laboratory studies, seismic field studies of fracture anisotropy, and the problem of upscaling from the laboratory to the field. It discusses fluid effects on seismic anisotropy and a method for predicting stress-induced seismic anisotropy. Then results from the field experiment are presented and discussed: regional geologic framework and site description; seismic data acquisition; shear wave data and validation; and P-wave data analysis. 106 refs., 52 figs.

  18. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Introduction into Induction and Natural Gas Stoves

    E-Print Network [OSTI]

    into Induction and Natural Gas Stoves: A Triple Bottom Line Analysis for the new Student Union Building Jordan Ho of a project/report". #12;APSC 262 An Introduction Into Induction and Natural Gas Stoves A triple-bottom line, 2011 #12;Page 2 of 21 ABSTRACT This report compares the attributes of induction and natural gas stoves

  19. DOE-Sponsored Project to Study Shale Gas Production | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 20153 METHODS DERIVATION MODULEApril 30,Departmentto Study

  20. Feasibility study for lowering the minimum gas pressure in solution-mined caverns based on geomechanical analyses of creep-induced damage and healing

    SciTech Connect (OSTI)

    Ratigan, J.L.; Nieland, J.D.; Devries, K.L.

    1998-12-31

    Geomechanical analyses were made to determine the minimum gas pressure allowable based on an existing stress-based criterion (Damage Potential) and an advanced constitutive model (MDCF model) capable of quantifying the level of damage and healing in rock salt. The MDCF model is a constitutive model developed for the WIPP to provide a continuum description of the dislocation and damage deformation of salt. The purpose of this study was to determine if the MDCF model is applicable for evaluating the minimum gas pressure of CNG storage caverns. Specifically, it was to be determined if this model would predict that the minimum gas pressure in the caverns could be lowered without compromising the stability of the cavern. Additionally, the healing behavior of the salt was analyzed to determine if complete healing of the damaged rock zone would occur during the period the cavern was at maximum gas pressure. Significant findings of this study are reported.

  1. A Study on a Tritium Separation Process Using Self-Developing Gas Chromatography with Pd-Pt Alloy

    SciTech Connect (OSTI)

    Kojima, S. [JGC Corporation (Japan); Yokosawa, M. [JGC Corporation (Japan); Matsuyama, M. [Toyama University (Japan); Numata, M. [JGC Corporation (Japan); Kato, T. [JGC Corporation (Japan); Watanabe, K. [Toyama University (Japan)

    2005-07-15

    To study the practical application of a tritium separation process using Self-Developing Gas Chromatography (SDGC) using a Pd-Pt alloy, intermediate scale-up experiments (22 mm ID x 2 m length column) and the development of a computational simulation method have been conducted. In addition, intermediate scale production of Pd-Pt powder has been developed for the scale-up experiments.The following results were obtained: (1) a 50-fold scale-up from 3 mm to 22 mm causes no significant impact on the SDGC process; (2) the Pd-Pt alloy powder is applicable to a large size SDGC process; and (3) the simulation enables preparation of a conceptual design of a SDGC process for tritium separation.

  2. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1994-04-29

    The study area is located at the southern end of the Powder River Basin in Converse County in east-central Wyoming. It is a low permeability fractured site, with both gas and oil present. Reservoirs are highly compartmentalized due to the low permeabilities, and fractures provide the only practical drainage paths for production. The two formations of interest are: The Niobrara, a fractured shale and limey shale to chalk, which is a reservoir rock, but also its own source rock; and the Frontier, a tight sandstone lying directly below the Niobrara, brought into contact with it by an unconformity. This was the tenth quarter of the contract. During this quarter the investigators (1) continued processing the seismic data, and (2) continued modeling some of the P-wave amplitude anomalies that we see in the data.

  3. Preliminary formation analysis for compressed air energy storage in depleted natural gas reservoirs : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Gardner, William Payton

    2013-06-01

    The purpose of this study is to develop an engineering and operational understanding of CAES performance for a depleted natural gas reservoir by evaluation of relative permeability effects of air, water and natural gas in depleted natural gas reservoirs as a reservoir is initially depleted, an air bubble is created, and as air is initially cycled. The composition of produced gases will be evaluated as the three phase flow of methane, nitrogen and brine are modeled. The effects of a methane gas phase on the relative permeability of air in a formation are investigated and the composition of the produced fluid, which consists primarily of the amount of natural gas in the produced air are determined. Simulations of compressed air energy storage (CAES) in depleted natural gas reservoirs were carried out to assess the effect of formation permeability on the design of a simple CAES system. The injection of N2 (as a proxy to air), and the extraction of the resulting gas mixture in a depleted natural gas reservoir were modeled using the TOUGH2 reservoir simulator with the EOS7c equation of state. The optimal borehole spacing was determined as a function of the formation scale intrinsic permeability. Natural gas reservoir results are similar to those for an aquifer. Borehole spacing is dependent upon the intrinsic permeability of the formation. Higher permeability allows increased injection and extraction rates which is equivalent to more power per borehole for a given screen length. The number of boreholes per 100 MW for a given intrinsic permeability in a depleted natural gas reservoir is essentially identical to that determined for a simple aquifer of identical properties. During bubble formation methane is displaced and a sharp N2methane boundary is formed with an almost pure N2 gas phase in the bubble near the borehole. During cycling mixing of methane and air occurs along the boundary as the air bubble boundary moves. The extracted gas mixture changes as a function of time and proximity of the bubble boundary to the well. For all simulations reported here, with a formation radius above 50 m the maximum methane composition in the produced gas phase was less than 0.5%. This report provides an initial investigation of CAES in a depleted natural gas reservoir, and the results will provide useful guidance in CAES system investigation and design in the future.

  4. Exhaust Gas Recirculation Cooler Fouling in Diesel Applications: Fundamental Studies Deposit Properties and Microstructure

    SciTech Connect (OSTI)

    Storey, John Morse [ORNL; Sluder, Scott [ORNL; Lance, Michael J [ORNL; Styles, Dan [Ford Motor Company; Simko, Steve [Ford Motor Company

    2013-01-01

    This paper reports on the results of experimental efforts aimed at improving the understanding of the mechanisms and conditions at play in the fouling of EGR coolers. An experimental apparatus was constructed to utilize simplified surrogate heat exchanger tubes in lieu of full-size heat exchangers. The use of these surrogate tubes allowed removal of the tubes after exposure to engine exhaust for study of the deposit layer and its properties. The exhaust used for fouling the surrogate tubes was produced using a modern medium-duty diesel engine fueled with both ultra-low sulfur diesel and biodiesel blends. At long exposure times, no significant difference in the fouling rate was observed between fuel types and HC levels. Surface coatings for the tubes were also evaluated to determine their impact on deposit growth. No surface treatment or coating produced a reduction in the fouling rate or any evidence of deposit removal. In addition, microstructural analysis of the fouling layers was performed using optical and electron microscopy in order to better understand the deposition mechanism. The experimental results are consistent with thermophoretic deposition for deposit formation, and van der Waals attraction between the deposit surface and exhaust-borne particulate.

  5. Long-Term Benthic Macroinvertebrate Community Monitoring to Assess Pollution Abatement Effectiveness

    SciTech Connect (OSTI)

    Smith, John G; Brandt, Craig C; Christensen, Sigurd W

    2011-01-01

    The benthic macroinvertebrate community of East Fork Poplar Creek (EFPC) in East Tennessee was monitored for 18 years to evaluate the effectiveness of a water pollution control program implemented at a major United States (U.S.) Department of Energy facility. Several actions were implemented to reduce and control releases of pollutants into the headwaters of the stream. Four of the most significant actions were implemented during different time periods, which allowed assessment of each action. Macroinvertebrate samples were collected annually in April from three locations in EFPC (EFK24, EFK23, and EFK14) and two nearby reference streams from 1986 through 2003. Significant improvements occurred in the macroinvertebrate community at the headwater sites (EFK24 and EFK23) after implementation of each action, while changes detected 9 km further downstream (EFK14) could not be clearly attributed to any of the actions. Because the stream was impacted at its origin, invertebrate recolonization was primarily limited to aerial immigration, thus, recovery has been slow. As recovery progressed, abundances of small pollution-tolerant taxa (e.g., Orthocladiinae chironomids) decreased and longer lived taxa colonized (e.g., hydropsychid caddisflies, riffle beetles, Baetis). While assessments lasting three to four years may be long enough to detect a response to new pollution controls at highly impacted locations, more time may be needed to understand the full effects. Studies on the effectiveness of pollution controls can be improved if impacted and reference sites are selected to maximize spatial and temporal trending, and if a multidisciplinary approach is used to broadly assess environmental responses (e.g., water quality trends, invertebrate and fish community assessments, toxicity testing, etc.).

  6. Development and application of the EPIC model for carbon cycle, greenhouse-gas mitigation, and biofuel studies

    SciTech Connect (OSTI)

    Izaurralde, Roberto C.; Mcgill, William B.; Williams, J.R.

    2012-06-01

    This chapter provides a comprehensive review of the EPIC model in relation to carbon cycle, greenhouse-gas mitigation, and biofuel applications. From its original capabilities and purpose (i.e., quantify the impacts or erosion on soil productivity), the EPIC model has evolved into a comprehensive terrestrial ecosystem model for simulating with more or less process-level detail many ecosystem processes such as weather, hydrology, plant growth and development, carbon cycle (including erosion), nutrient cycling, greenhouse-gas emissions, and the most complete set of manipulations that can be implemented on a parcel of land (e.g. tillage, harvest, fertilization, irrigation, drainage, liming, burning, pesticide application). The chapter also provides details and examples of the latest efforts in model development such as the coupled carbon-nitrogen model, a microbial denitrification model with feedback to the carbon decomposition model, updates on calculation of ecosystem carbon balances, and carbon emissions from fossil fuels. The chapter has included examples of applications of the EPIC model in soil carbon sequestration, net ecosystem carbon balance, and biofuel studies. Finally, the chapter provides the reader with an update on upcoming improvements in EPIC such as the additions of modules for simulating biochar amendments, sorption of soluble C in subsoil horizons, nitrification including the release of N2O, and the formation and consumption of methane in soils. Completion of these model development activities will render an EPIC model with one of the most complete representation of biogeochemical processes and capable of simulating the dynamic feedback of soils to climate and management in terms not only of transient processes (e.g., soil water content, heterotrophic respiration, N2O emissions) but also of fundamental soil properties (e.g. soil depth, soil organic matter, soil bulk density, water limits).

  7. Regional Analysis of Building Distributed Energy Costs and CO2 Abatement: A U.S. - China Comparison

    E-Print Network [OSTI]

    Mendes, Goncalo

    2014-01-01

    Gas- Fired Distributed Energy Resource Characterizations,R. Fan, Building Distributed Energy Performance Optimizationand power; DER – Distributed energy resources; DER-CAM –

  8. Equation of state of a weakly interacting two-dimensional Bose gas studied at zero temperature by means of quantum Monte Carlo methods

    SciTech Connect (OSTI)

    Astrakharchik, G. E.; Boronat, J.; Casulleras, J.; Kurbakov, I. L.; Lozovik, Yu. E.

    2009-05-15

    The equation of state of a weakly interacting two-dimensional Bose gas is studied at zero temperature by means of quantum Monte Carlo methods. Going down to as low densities as na{sup 2}{proportional_to}10{sup -100} permits us to obtain agreement on beyond mean-field level between predictions of perturbative methods and direct many-body numerical simulation, thus providing an answer to the fundamental question of the equation of state of a two-dimensional dilute Bose gas in the universal regime (i.e., entirely described by the gas parameter na{sup 2}). We also show that the measure of the frequency of a breathing collective oscillation in a trap at very low densities can be used to test the universal equation of state of a two-dimensional Bose gas.

  9. A Study of Strain Rate Effects for Turbulent Premixed Flames with Application to LES of a Gas Turbine Combustor Model

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

    Kemenov, Konstantin A.; Calhoon, William H.

    2015-03-24

    Large-scale strain rate field, a resolved quantity which is easily computable in large-eddy simulations (LES), could have profound effects on the premixed flame properties by altering the turbulent flame speed and inducing local extinction. The role of the resolved strain rate has been investigated in a posterior LES study of GE lean premixed dry low NOx emissions LM6000 gas turbine combustor model. A novel approach which is based on the coupling of the lineareddy model with a one-dimensional counter-flow solver has been applied to obtain the parameterizations of the resolved premixed flame properties in terms of the reactive progress variable,more »the local strain rate measure, and local Reynolds and Karlovitz numbers. The strain rate effects have been analyzed by comparing LES statistics for several models of the turbulent flame speed, i.e, with and without accounting for the local strain rate effects, with available experimental data. The sensitivity of the simulation results to the inflow velocity conditions as well as the grid resolution have been also studied. Overall, the results suggest the necessity to represent the strain rate effects accurately in order to improve LES modeling of the turbulent flame speed.« less

  10. A Study of Strain Rate Effects for Turbulent Premixed Flames with Application to LES of a Gas Turbine Combustor Model

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

    Kemenov, Konstantin A.; Calhoon, William H.

    2015-03-24

    Large-scale strain rate field, a resolved quantity which is easily computable in large-eddy simulations (LES), could have profound effects on the premixed flame properties by altering the turbulent flame speed and inducing local extinction. The role of the resolved strain rate has been investigated in a posterior LES study of GE lean premixed dry low NOx emissions LM6000 gas turbine combustor model. A novel approach which is based on the coupling of the lineareddy model with a one-dimensional counter-flow solver has been applied to obtain the parameterizations of the resolved premixed flame properties in terms of the reactive progress variable, the local strain rate measure, and local Reynolds and Karlovitz numbers. The strain rate effects have been analyzed by comparing LES statistics for several models of the turbulent flame speed, i.e, with and without accounting for the local strain rate effects, with available experimental data. The sensitivity of the simulation results to the inflow velocity conditions as well as the grid resolution have been also studied. Overall, the results suggest the necessity to represent the strain rate effects accurately in order to improve LES modeling of the turbulent flame speed.

  11. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report, April 1, 1993--June 31, 1993

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1993-07-26

    This was the seventh quarter of the contract. During this quarter we (1) continued the large task of processing the seismic data, (2) collected additional geological information to aid in the interpretation, (3) tied the well log data to the seismic via generation of synthetic seismograms, (4) began integrating regional structural information and fracture trends with our observations of structure in the study area, (5) began constructing a velocity model for time-to-depth conversion and subsequent AVO and raytrace modeling experiments, and (6) completed formulation of some theoretical tools for relating fracture density to observed elastic anisotropy. The study area is located at the southern end of the Powder River Basin in Converse County in east-central Wyoming. It is a low permeability fractured site, with both gas and oil present. Reservoirs are highly compartmentalized due to the low permeabilities, and fractures provide the only practical drainage paths for production. The two formations of interest are: The Niobrara: a fractured shale and limey shale to chalk, which is a reservoir rock, but also its own source rock. The Frontier: a tight sandstone lying directly below the Niobrara, brought into contact with it by an unconformity. A basemap is presented with the seismic lines being analyzed for this project plus locations of 13 wells that we are using to supplement the analysis. The arrows point to two wells for which we have constructed synthetic seismograms.

  12. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report, January 1, 1993--March 31, 1993

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1993-04-26

    During this quarter we (1) received the last of the field tapes and survey information for the seismic field data acquisition which was finished at the very end of the previous quarter, (2) began the large task of processing the seismic data, (3) collected well logs and other informination to aid in the interpretation, and (4) initiated some seismic modeling studies. As already reported, the field data acquisition was at Amoco`s Powder River Basin site in southeast Wyoming. This is a low permeability fractured site, with both gas and oil present. The reservoir is highly compartmentalized, due to the low permeability, with the fractures providing the only practical drainage paths for production. The two formations of interest are: The Niobrara: a fractured shale and limey shale to chalk, which is a reservoir rock, but also its own source rock. The Frontier: a tight sandstone lying directly below the Niobrara, brought into contact with it by an unconformity. The fractures are thought to lie in a roughly northwest-southeast trend, along the strike of a flexure, which forms one of the boundaries of the basin.

  13. Ruthenium trisbipyridine as a candidate for gas-phase spectroscopic studies in a Fourier transform mass spectrometer

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

    Scott, Jill R.; Ham, Jason E.; Durham, Bill; Tremblay, Paul L.

    2004-01-01

    Metal polypyridines are excellent candidates for gas-phase optical experiments where their intrinsic properties can be studied without complications due to the presence of solvent. The fluorescence lifetimes of [Ru(bpy)3]1+trapped in an optical detection cell within a Fourier transform mass spectrometer were obtained using matrix-assisted laser desorption/ionization to generate the ions with either 2,5-dihydroxybenzoic acid (DHB) or sinapinic acid (SA) as matrix. All transients acquired, whether using DHB or SA for ion generation, were best described as approximately exponential decays. The rate constant for transients derived using DHB as matrix was 4×107s?1, while the rate constant using SA was 1×107s?1. Somemore »suggestions of multiple exponential decay were evident although limited by the quality of the signals. Photodissociation experiments revealed that [Ru(bpy)3]1+generated using DHB can decompose to [Ru(bpy)2]1+, whereas ions generated using SA showed no decomposition. Comparison of the mass spectra with the fluorescence lifetimes illustrates the promise of incorporating optical detection with trapped ion mass spectrometry techniques.« less

  14. FEMAXI-V benchmarking study on peak temperature and fission gas release prediction of PWR rod fuel

    SciTech Connect (OSTI)

    Suwardi; Dewayatna, W.; Briyatmoko, B.

    2012-06-06

    The present paper reports a study of FEMAXI-V code and related report on code benchmarking. Capabilities of the FEMAXI-V code to predict the thermal and fission gas release have been tested on MOX fuels in LWRs which has been done in SCK{center_dot}CEN and Belgonucleaire by using PRIMO MOX rod BD8 irradiation experiment after V Sobolev as reported O. J. Ott. Base irradiation in the BR3 reactor, the BD8 rod was transported to CEA-Saclay for irradiation in the OSIRIS reactor (ramp power excursion). The irradiation device used for the PRIMO ramps was the ISABELLE 1 loop, installed on a movable structure of the core periphery. The power variations were obtained by inwards/backwards movements of the loop in the core water. The preconditioning phase for rod BD8 occurred at a peak power level of 189 W/cm with a hold time of 27 hours. The subsequent power excursion rate amounted to 77 W/ (cm.min), reaching a terminal peak power level of 395 W/cm that lasted for 20 hours.

  15. Impacts of Imported Liquefied Natural Gas on Residential Appliance Components: Literature Review

    E-Print Network [OSTI]

    Lekov, Alex

    2010-01-01

    Gas Quality and Liquefied Natural Gas Research Study. LosGas Quality and Liquefied Natural Gas Research Study. LosGas Quality and Liquefied Natural Gas Research Study. Los

  16. Building new power plants in a CO2 constrained world: A Case Study from Norway on Gas-Fired Power Plants, Carbon Sequestration, and

    E-Print Network [OSTI]

    Building new power plants in a CO2 constrained world: A Case Study from Norway on Gas-Fired Power director. Most of the material used in this work are either courtesy of the persons I talked to in Norway, or the results of interviews the author conducted in Norway, between August 26 and August 30.The author

  17. Study of the Heating Load of a Manufactured Space with a Gas-fired Radiant Heating System 

    E-Print Network [OSTI]

    Zheng, X.; Dong, Z.

    2006-01-01

    A thermal balance mathematics model of a manufactured space with a gas-fired radiant heating system is established to calculate the heating load. Computer programs are used to solve the model. Envelope internal surface temperatures under different...

  18. An experimental study of heat transfer in the rectangular coolant passages of a gas turbine rotor blade 

    E-Print Network [OSTI]

    Uddin, Mohammed Jalal

    2000-01-01

    Modern gas turbines have high inlet temperatures to harness maximum power output, which causes different components to experience severe thermal stresses and fatigue. To achieve turbine blade durability goals, the blades are cooled with air...

  19. Implications of Cost Effectiveness Screening Practices in a Low Natural Gas Price Environment: Case Study of a Midwestern Residential Energy Upgrade Program

    E-Print Network [OSTI]

    Hoffman, Ian M.

    2014-01-01

    Practices in a Low Natural Gas Price Environment: Case Studyare now resulting in some natural gas efficiency programscriteria in the new low natural gas price environment.

  20. Implications of Cost Effectiveness Screening Practices in a Low Natural Gas Price Environment: Case Study of a Midwestern Residential Energy Upgrade Program

    E-Print Network [OSTI]

    Hoffman, Ian M.

    2014-01-01

    Practices in a Low Natural Gas Price Environment: Case Studyin the new low natural gas price environment. Regulators arelow to moderate natural gas prices, and a second assessing

  1. Point flow sensor study for electronic gas energy metering. Phase 1. Thermophysical and fluid-dynamic data. Final report, March 15, 1994-July 15, 1996

    SciTech Connect (OSTI)

    Bonne, U.; Vesovic, V.; Wakeham, W.A.

    1996-07-15

    The set published properties of gases constituting natural gas, at pressures up to 300 basr (4500 psi) ad for -40 less than or equal to T less than or equal to 250 deg C, is not accurate or consistent enough for members of hte gas industry, research groups, NGV-automotive engineers, and meter manufacturers to nondestructively calibrate existing, affordable, combustionless, on-line and in situ microsensors for their applications. Therefore, this study was set up to (1) establish a consistent set of thermophysical properties (thermal conductivity, viscosity, and isobaric heat capacity) of pure and mixed gas constituents of natural gases and (2) prove the validity and limitations of using one or more point sensors in suitable flow channels for the determination of total fluid flow.

  2. Process studies for a new method of removing H/sub 2/S from industrial gas streams

    SciTech Connect (OSTI)

    Neumann, D.W.; Lynn, S.

    1986-07-01

    A process for the removal of hydrogen sulfide from coal-derived gas streams has been developed. The basis for the process is the absorption of H/sub 2/S into a polar organic solvent where it is reacted with dissolved sulfur dioxide to form elemental sulfur. After sulfur is crystallized from solution, the solvent is stripped to remove dissolved gases and water formed by the reaction. The SO/sub 2/ is generated by burning a portion of the sulfur in a furnace where the heat of combustion is used to generate high pressure steam. The SO/sub 2/ is absorbed into part of the lean solvent to form the solution necessary for the first step. The kinetics of the reaction between H/sub 2/S and SO/sub 2/ dissolved in mixtures of N,N-Dimethylaniline (DMA)/ Diethylene Glycol Monomethyl Ether and DMA/Triethylene Glycol Dimethyl Ether was studied by following the temperature rise in an adiabatic calorimeter. This irreversible reaction was found to be first-order in both H/sub 2/S and SO/sub 2/, with an approximates heat of reaction of 28 kcal/mole of SO/sub 2/. The sole products of the reaction appear to be elemental sulfur and water. The presence of DMA increases the value of the second-order rate constant by an order of magnitude over that obtained in the glycol ethers alone. Addition of other tertiary aromatic amines enhances the observed kinetics; heterocyclic amines (e.g., pyridine derivatives) have been found to be 10 to 100 times more effective as catalysts when compared to DMA.

  3. An Aging Study of a Gas Electron Multiplier with Micro-Strip Gas Chamber Readout J. Miyamoto and I.P.J Shipsey

    E-Print Network [OSTI]

    ]. At high energy colliders and in certain imaging applications the MSGC is exposed to large radiation doses of intense research, in particular for use as a precision tracker for high rate particle physics experiments]. Aging studies are performed in the laboratory using low energy X-ray beams. However, the conditions

  4. Contribution of cooperative sector recycling to greenhouse gas emissions reduction: A case study of Ribeirão Pires, Brazil

    SciTech Connect (OSTI)

    King, Megan F.; Gutberlet, Jutta

    2013-12-15

    Highlights: • Cooperative recycling achieves environmental, economic and social objectives. • We calculate GHG emissions reduction for a recycling cooperative in São Paulo, Brazil. • The cooperative merits consideration as a Clean Development Mechanism (CDM) project. • A CDM project would enhance the achievements of the recycling cooperative. • National and local waste management policies support the recycling cooperative. - Abstract: Solid waste, including municipal waste and its management, is a major challenge for most cities and among the key contributors to climate change. Greenhouse gas emissions can be reduced through recovery and recycling of resources from the municipal solid waste stream. In São Paulo, Brazil, recycling cooperatives play a crucial role in providing recycling services including collection, separation, cleaning, stocking, and sale of recyclable resources. The present research attempts to measure the greenhouse gas emission reductions achieved by the recycling cooperative Cooperpires, as well as highlight its socioeconomic benefits. Methods include participant observation, structured interviews, questionnaire application, and greenhouse gas accounting of recycling using a Clean Development Mechanism methodology. The results show that recycling cooperatives can achieve important energy savings and reductions in greenhouse gas emissions, and suggest there is an opportunity for Cooperpires and other similar recycling groups to participate in the carbon credit market. Based on these findings, the authors created a simple greenhouse gas accounting calculator for recyclers to estimate their emissions reductions.

  5. Dry Gas Zone, Elk Hills Field, Kern County, California: General reservoir study: Geologic text and tables: Final report

    SciTech Connect (OSTI)

    Not Available

    1988-06-29

    The Dry Gas Zone was defined by US Naval Petroleum Reserve No. 1 Engineering Committee (1957) as ''/hor ellipsis/all sands bearing dry gas above the top of the Lower Scalez marker bed. The term is used to include the stratigraphic interval between the Scalez Sand Zone and the Tulare Formation - the Mya Sand Zone. The reservoirs in this upper zone are thin, lenticular, loosely cemented sandstones with relatively high permeabilities.'' Other than the limited Tulare production in the western part of the field, the Dry Gas Zone is the shallowest productive zone in the Elk Hills Reserve and is not included in the Shallow Oil Zone. It is Pliocene in age and makes up approximately eighty percent of the San Joaquin Formation as is summarized in Exhibit TL-1. The lithologic character of the zone is one of interbedded shales and siltstones with intermittent beds of various thickness sands. The stratigraphic thickness of the Dry Gas Zone ranges from 950 to 1150 feet with a general thickening along the flanks and thinning over the crests of the anticlines. The productive part of the Dry Gas Zone covers portions of 30 sections in an area roughly 10 miles long by 4 miles wide. 4 refs.

  6. Regional Analysis of Building Distributed Energy Costs and CO2 Abatement: A U.S. - China Comparison

    SciTech Connect (OSTI)

    Mendes, Goncalo; Feng, Wei; Stadler, Michael; Steinbach, Jan; Lai, Judy; Zhou, Nan; Marnay, Chris; Ding, Yan; Zhao, Jing; Tian, Zhe; Zhu, Neng

    2014-04-09

    The following paper conducts a regional analysis of the U.S. and Chinese buildings? potential for adopting Distributed Energy Resources (DER). The expected economics of DER in 2020-2025 is modeled for a commercial and a multi-family residential building in different climate zones. The optimal building energy economic performance is calculated using the Distributed Energy Resources Customer Adoption Model (DER CAM) which minimizes building energy costs for a typical reference year of operation. Several DER such as combined heat and power (CHP) units, photovoltaics, and battery storage are considered. The results indicate DER have economic and environmental competitiveness potential, especially for commercial buildings in hot and cold climates of both countries. In the U.S., the average expected energy cost savings in commercial buildings from DER CAM?s suggested investments is 17percent, while in Chinese buildings is 12percent. The electricity tariffs structure and prices along with the cost of natural gas, represent important factors in determining adoption of DER, more so than climate. High energy pricing spark spreads lead to increased economic attractiveness of DER. The average emissions reduction in commercial buildings is 19percent in the U.S. as a result of significant investments in PV, whereas in China, it is 20percent and driven by investments in CHP. Keywords: Building Modeling and Simulation, Distributed Energy Resources (DER), Energy Efficiency, Combined Heat and Power (CHP), CO2 emissions 1. Introduction The transition from a centralized and fossil-based energy paradigm towards the decentralization of energy supply and distribution has been a major subject of research over the past two decades. Various concerns have brought the traditional model into question; namely its environmental footprint, its structural inflexibility and inefficiency, and more recently, its inability to maintain acceptable reliability of supply. Under such a troubled setting, distributed energy resources (DER) comprising of small, modular, electrical renewable or fossil-based electricity generation units placed at or near the point of energy consumption, has gained much attention as a viable alternative or addition to the current energy system. In 2010, China consumed about 30percent of its primary energy in the buildings sector, leading the country to pay great attention to DER development and its applications in buildings. During the 11th Five Year Plan (FYP), China has implemented 371 renewable energy building demonstration projects, and 210 photovoltaics (PV) building integration projects. At the end of the 12th FYP, China is targeting renewable energy to provide 10percent of total building energy, and to save 30 metric tons of CO2 equivalents (mtce) of energy with building integrated renewables. China is also planning to implement one thousand natural gas-based distributed cogeneration demonstration projects with energy utilization rates over 70percent in the 12th FYP. All these policy targets require significant DER systems development for building applications. China?s fast urbanization makes building energy efficiency a crucial economic issue; however, only limited studies have been done that examine how to design and select suitable building energy technologies in its different regions. In the U.S., buildings consumed 40percent of the total primary energy in 2010 [1] and it is estimated that about 14 billion m2 of floor space of the existing building stock will be remodeled over the next 30 years. Most building?s renovation work has been on building envelope, lighting and HVAC systems. Although interest has emerged, less attention is being paid to DER for buildings. This context has created opportunities for research, development and progressive deployment of DER, due to its potential to combine the production of power and heat (CHP) near the point of consumption and delivering multiple benefits to customers, such as cost

  7. H. R. 527: A Bill to authorize research and evaluation programs for monitoring, detecting, and abating lead based paint and other lead exposure hazards in housing, and for other purposes, introduced in the House of Representatives, One Hundred Second Congress, First Session, January 14, 1991

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    Lead poses a significant environmental health problem since adverse effects have been conclusively demonstrated at relatively low exposures. H.R.527 was introduced into the US House of Representatives on January 14 1991 to authorize research and evaluation programs for monitoring, detecting, and abating lead based paint and other lead exposure hazards in housing. Attention is focused on the following: laboratory analysis standardization; detection technologies; research on abatement and in-place management techniques; abatement products; lead exposure in children; public education; and authorization of appropriations.

  8. Preliminary experimental study on cold fusion using deuterium gas and deuterium plasma in the presence of palladium

    SciTech Connect (OSTI)

    Gu, A.G.; Teng, R.K.F.; Miller, M.S.; Sprouse, W.J. )

    1989-09-01

    The authors describe a series of experiments using deuterium gas and deuterium plasma in the presence of palladium designed to observe the possibility of cold fusion. Two kinds of preliminary experiments were recently performed. One involved the diffusion of deuterium gas into paladium. The gas was cooled by liquid nitrogen, and then the temperature was permitted to rise to room temperature, going from near -34 to 19{sup 0}C (-30 to 67{sup 0}F) in 75 min. A spherical lithium neutron detector, 21 cm from the palladium gave an audible indication of neutron levels approximately equal to, but above, background. A second experiment used a deuterium ion beam (1 keV) that bombarded a palladium target.

  9. Study of the Effects of Ambient Conditions Upon the Performance of Fan Powered, Infrared Natural Gas Burners

    SciTech Connect (OSTI)

    Clark Atlanta University

    2002-12-02

    The objective of this investigation was to characterize the operation of a fan-powered, infrared burner (IR burner) at various gas compositions and ambient conditions, develop numerical model to simulate the burner performances, and provide design guidelines for appliances containing PIR burners for satisfactory performance.

  10. Design, analyses and experimental study of a foil gas bearing with compression springs as a compliance support 

    E-Print Network [OSTI]

    Song, Ju Ho

    2009-06-02

    of compression springs was developed and showed a good level of agreement with the experimental results. The spring dynamics model was combined with a non-linear orbit simulation to investigate the non-linear behavior of foil gas bearings. The approach could also...

  11. Radcalc for windows benchmark study: A comparison of software results with Rocky Flats hydrogen gas generation data

    SciTech Connect (OSTI)

    MCFADDEN, J.G.

    1999-07-19

    Radcalc for Windows Version 2.01 is a user-friendly software program developed by Waste Management Federal Services, Inc., Northwest Operations for the U.S. Department of Energy (McFadden et al. 1998). It is used for transportation and packaging applications in the shipment of radioactive waste materials. Among its applications are the classification of waste per the US. Department of Transportation regulations, the calculation of decay heat and daughter products, and the calculation of the radiolytic production of hydrogen gas. The Radcalc program has been extensively tested and validated (Green et al. 1995, McFadden et al. 1998) by comparison of each Radcalc algorithm to hand calculations. An opportunity to benchmark Radcalc hydrogen gas generation calculations to experimental data arose when the Rocky Flats Environmental Technology Site (RFETS) Residue Stabilization Program collected hydrogen gas generation data to determine compliance with requirements for shipment of waste in the TRUPACT-II (Schierloh 1998). The residue/waste drums tested at RFETS contain contaminated, solid, inorganic materials in polyethylene bags. The contamination is predominantly due to plutonium and americium isotopes. The information provided by Schierloh (1 998) of RFETS includes decay heat, hydrogen gas generation rates, calculated G{sub eff} values, and waste material type, making the experimental data ideal for benchmarking Radcalc. The following sections discuss the RFETS data and the Radcalc cases modeled with the data. Results are tabulated and also provided graphically.

  12. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report for the period: 7/1/93--9/31/93

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1993-10-23

    The study area is located at the southern end of the Powder River Basin in Converse County in east-central Wyoming. It is a low permeability fractured site, with both gas and oil present. Reservoirs are highly compartmentalized due to the low permeabilities, and fractures provide the only practical paths of production. During this eighth quarter of the seismic study of this area, work continued in processing seismic data, collecting additional geological information to aid in the interpretation, and integrating regional structural information and fracture trends with observations of structure in the study area.

  13. Economics of Condensing Gas Furnaces and Water Heaters Potential in Residential Single Family Homes

    E-Print Network [OSTI]

    Lekov, Alex

    2011-01-01

    to develop condensing gas storage water heaters to qualifyboth a gas furnace and gas storage water heater. This study

  14. Russian Policy on Methane Emissions in the Oil and Gas Sector: A Case Study in Opportunities and Challenges in Reducing Short-Lived Forcers

    SciTech Connect (OSTI)

    Evans, Meredydd; Roshchanka, Volha

    2014-08-04

    This paper uses Russian policy in the oil and gas sector as a case study in assessing options and challenges for scaling-up emission reductions. We examine the challenges to achieving large-scale emission reductions, successes that companies have achieved to date, how Russia has sought to influence methane emissions through its environmental fine system, and options for helping companies achieve large-scale emission reductions in the future through simpler and clearer incentives.

  15. Development of a high-density gas-jet target for nuclear astrophysics and reaction studies with rare isotope beams. Final Report

    SciTech Connect (OSTI)

    Uwe, Greife

    2014-08-12

    The purpose of this project was to develop a high-density gas jet target that will enable a new program of transfer reaction studies with rare isotope beams and targets of hydrogen and helium that is not currently possible and will have an important impact on our understanding of stellar explosions and of the evolution of nuclear shell structure away from stability. This is the final closeout report for the project.

  16. The gas-rich circumbinary disk of HR 4049. I. A detailed study of the mid-infrared spectrum

    SciTech Connect (OSTI)

    Malek, S. E.; Cami, J., E-mail: sarahemalek@gmail.com, E-mail: jcami@uwo.ca [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada)

    2014-01-01

    We present a detailed analysis of the mid-infrared spectrum of the peculiar evolved object HR 4049. The full Spitzer-IRS high-resolution spectrum shows a wealth of emission with prominent features from CO{sub 2} and H{sub 2}O and possible contributions from HCN and OH. We model the molecular emission and find that it originates from a massive (M ? 8 × 10{sup –3} M {sub ?}), warm (T {sub ex} ? 500 K) and radially extended gas disk that is optically thick at infrared wavelengths. We also report less enrichment in {sup 17}O and {sup 18}O than previously found and a comparison of the Spitzer observations to earlier data obtained by the Short Wavelength Spectrometer on board the Infrared Space Observatory reveals that the CO{sub 2} flux has more than doubled in 10 yr time, indicating active and ongoing chemical evolution in the circumbinary disk. If the gas originates from interaction between the stellar wind and the dust, this suggests that the dust could be oxygen-rich in nature. The molecular gas plays a crucial role in the thermal properties of the circumbinary disk by allowing visible light to heat the dust and then trapping the infrared photons emitted by the dust. This results in higher temperatures and a more homogeneous temperature structure in the disk.

  17. Development of a fast cyclotron gas stopper for intense rare isotope beams from projectile fragmentation: Study of ion extraction with a radiofrequency carpet

    SciTech Connect (OSTI)

    Bollen, Georg; Morrissey, David

    2011-01-16

    Research and development has been performed in support of the design of a future rare isotope beam facility in the US. An important aspect of plans for earlier RIA (Rare Isotope Accelerator) and a requirement of FRIB (Facility of Rare Isotope Beams) to be built at Michigan State University are the availability of so-called “stopped beams” for research that contributes to answering questions like how elements in the universe are created and to provide better insight into the nature of Fundamental Interactions. In order to create “stopped beams” techniques are required that transform fast rare isotopes beams as they are available directly after addresses questions like the origin of that will allow and High priority is given to the evaluation of intensity limitations and the efficiency of stopping of fast fragment beams in gas cells and to the exploration of options to increase the efficiency and the reduction of space charge effects. Systematic studies performed at MSU as part of the RIA R&D with a linear gas cell under conditions close to those expected at RIA and related simulations confirm that the efficiency of stopping and extracting ions decreases with increasing beam intensity. Similar results have also been observed at RIKEN in Japan. These results indicate the concepts presently under study will not be able to cover the full range of intensities of fast beams expected at RIA without major losses. The development of a more robust concept is therefore critical to the RIA concept. Recent new beam simulation studies performed at the NSCL show that the stopping of heavy ions in a weakly focusing gas-filled magnetic field can overcome the intensity limitation of present systems while simultaneously providing a much faster ion extraction. We propose to design and build such a cyclotron gas stopper and to test it at the NSCL under conditions as close as possible to those found at RIA.

  18. Gas Mask 

    E-Print Network [OSTI]

    Unknown

    2011-09-05

    The gas industry fostered more efficient energy utilization long before the idea of energy conservation became fashionable. It became apparent in the late '60's that misguided Federal Legislation was discouraging necessary search for new gas...

  19. Gas separating

    DOE Patents [OSTI]

    Gollan, Arye Z.

    1990-12-25

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing.

  20. Gas separating

    DOE Patents [OSTI]

    Gollan, Arye (Newton, MA)

    1988-01-01

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing.

  1. Tapping Landfill Gas to Provide Significant Energy Savings and...

    Office of Environmental Management (EM)

    Tapping Landfill Gas to Provide Significant Energy Savings and Greenhouse Gas Reductions - Case Study, 2013 Tapping Landfill Gas to Provide Significant Energy Savings and...

  2. Increase Natural Gas Energy Efficiency | OpenEI Community

    Open Energy Info (EERE)

    Unconventional Gas Market Type Term Title Author Replies Last Post sort icon Blog entry Global Unconventional Gas Market Unconventional Gas Market Study 2018 John55364 12 May 2015...

  3. Development of a Novel Gas Pressurized Process-Based Technology for CO2 Capture from Post-Combustion Flue Gases Preliminary Year 1 Techno-Economic Study Results and Methodology for Gas Pressurized Stripping Process

    SciTech Connect (OSTI)

    Chen, Shiaoguo

    2013-03-01

    Under the DOE’s Innovations for Existing Plants (IEP) Program, Carbon Capture Scientific, LLC (CCS) is developing a novel gas pressurized stripping (GPS) process to enable efficient post-combustion carbon capture (PCC) from coal-fired power plants. A technology and economic feasibility study is required as a deliverable in the project Statement of Project Objectives. This study analyzes a fully integrated pulverized coal power plant equipped with GPS technology for PCC, and is carried out, to the maximum extent possible, in accordance to the methodology and data provided in ATTACHMENT 3 – Basis for Technology Feasibility Study of DOE Funding Opportunity Number: DE-FOA-0000403. The DOE/NETL report on “Cost and Performance Baseline for Fossil Energy Plants, Volume 1: Bituminous Coal and Natural Gas to Electricity (Original Issue Date, May 2007), NETL Report No. DOE/NETL-2007/1281, Revision 1, August 2007” was used as the main source of reference to be followed, as per the guidelines of ATTACHMENT 3 of DE-FOA-0000403. The DOE/NETL-2007/1281 study compared the feasibility of various combinations of power plant/CO2 capture process arrangements. The report contained a comprehensive set of design basis and economic evaluation assumptions and criteria, which are used as the main reference points for the purpose of this study. Specifically, Nexant adopted the design and economic evaluation basis from Case 12 of the above-mentioned DOE/NETL report. This case corresponds to a nominal 550 MWe (net), supercritical greenfield PC plant that utilizes an advanced MEAbased absorption system for CO2 capture and compression. For this techno-economic study, CCS’ GPS process replaces the MEA-based CO2 absorption system used in the original case. The objective of this study is to assess the performance of a full-scale GPS-based PCC design that is integrated with a supercritical PC plant similar to Case 12 of the DOE/NETL report, such that it corresponds to a nominal 550 MWe supercritical PC plant with 90% CO2 capture. This plant has the same boiler firing rate and superheated high pressure steam generation as the DOE/NETL report’s Case 12 PC plant. However, due to the difference in performance between the GPS-based PCC and the MEA-based CO2 absorption technology, the net power output of this plant may not be exactly at 550 MWe.

  4. Equation of state of an interacting Bose gas at finite temperature: A path-integral Monte Carlo study

    SciTech Connect (OSTI)

    Pilati, S.; Giorgini, S.; Sakkos, K.; Boronat, J.; Casulleras, J.

    2006-10-15

    By using exact path-integral Monte Carlo methods we calculate the equation of state of an interacting Bose gas as a function of temperature both below and above the superfluid transition. The universal character of the equation of state for dilute systems and low temperatures is investigated by modeling the interatomic interactions using different repulsive potentials corresponding to the same s-wave scattering length. The results obtained for the energy and the pressure are compared to the virial expansion for temperatures larger than the critical temperature. At very low temperatures we find agreement with the ground-state energy calculated using the diffusion Monte Carlo method.

  5. Regional Analysis of Building Distributed Energy Costs and CO2 Abatement: A U.S. - China Comparison

    E-Print Network [OSTI]

    Mendes, Goncalo

    2014-01-01

    Study on Energy Efficiency in Buildings, Pacific Grove,Study on Energy Efficiency in Buildings, Pacific Grove,DOE), Energy Efficiency & Renewable Energy, Buildings Energy

  6. A Study of Three Dimensional Bubble Velocities at Co-current Gas-liquid Vertical Upward Bubbly Flows

    E-Print Network [OSTI]

    Kuntoro, Hadiyan Yusuf; Deendarlianto,

    2015-01-01

    Recently, experimental series of co-current gas-liquid upward bubbly flows in a 6 m-height and 54.8 mm i.d. vertical titanium pipe had been conducted at the TOPFLOW thermal hydraulic test facility, Helmholtz-Zentrum Dresden-Rossendorf, Germany. The experiments were initially performed to develop a high quality database of two-phase flows as well as to validate new CFD models. An ultrafast dual-layer electron beam X-ray tomography, named ROFEX, was used as measurement system with high spatial and temporal resolutions. The gathered cross sectional grey value image results from the tomography scanning were reconstructed, segmented and evaluated to acquire gas bubble parameters for instance bubble position, size and holdup. To assign the correct paired bubbles from both measurement layers, a bubble pair algorithm was implemented on the basis of the highest probability values of bubbles in position, volume and velocity. Hereinafter, the individual characteristics of bubbles were calculated include instantaneous th...

  7. Fluid placement of fixated scrubber sludge to reduce surface subsidence and to abate acid mine drainage in abandoned underground coal mines

    SciTech Connect (OSTI)

    Meiers, R.J.; Golden, D.; Gray, R.; Yu, W.C.

    1995-12-31

    Indianapolis Power and Light Company (IPL) began researching the use of fluid placement techniques of the fixated scrubber sludge (FSS) to reduce surface subsidence from underground coal mines to develop an economic alternative to low strength concrete grout. Abandoned underground coal mines surround property adjacent to IPL`s coal combustion by-product (CCBP) landfill at the Petersburg Generating Station. Landfill expansion into these areas is in question because of the high potential for sinkhole subsidence to develop. Sinkholes manifesting at the surface would put the integrity of a liner or runoff pond containment structure for a CCBP disposal facility at risk. The fluid placement techniques of the FSS as a subsidence abatement technology was demonstrated during an eight week period in September, October, and November 1994 at the Petersburg Generating Station. The success of this technology will be determined by the percentage of the mine void filled, strength of the FSS placed, and the overall effects on the hydrogeologic environment. The complete report for this project will be finalized in early 1996.

  8. Development of Novel CO2 Adsorbents for Capture of CO2 from Flue Gas

    SciTech Connect (OSTI)

    Fauth, D.J.; Filburn, T.P.; Gray, M.L.; Hedges, S.W.; Hoffman, J.; Pennline, H.W.; Filburn, T.

    2007-06-01

    Capturing CO2 emissions generated from fossil fuel-based power plants has received widespread attention and is considered a vital course of action for CO2 emission abatement. Efforts are underway at the Department of Energy’s National Energy Technology Laboratory to develop viable energy technologies enabling the CO2 capture from large stationary point sources. Solid, immobilized amine sorbents (IAS) formulated by impregnation of liquid amines within porous substrates are reactive towards CO2 and offer an alternative means for cyclic capture of CO2 eliminating, to some degree, inadequacies related to chemical absorption by aqueous alkanolamine solutions. This paper describes synthesis, characterization, and CO2 adsorption properties for IAS materials previously tested to bind and release CO2 and water vapor in a closed loop life support system. Tetraethylenepentamine (TEPA), acrylonitrile-modified tetraethylenepentamine (TEPAN), and a single formulation consisting of TEPAN and N, N’-bis(2-hydroxyethyl)ethylenediamine (BED) were individually supported on a poly (methyl methacrylate) (PMMA) substrate and examined. CO2 adsorption profiles leading to reversible CO2 adsorption capacities were obtained using thermogravimetry. Under 10% CO2 in nitrogen at 25°C and 1 atm, TEPA supported on PMMA over 60 minutes adsorbed ~3.2 mmol/g{sorbent} whereas, TEPAN supported on PMMA along with TEPAN and BED supported on PMMA adsorbed ~1.7 mmol/g{sorbent} and ~2.3 mmol/g{sorbent} respectively. Cyclic experiments with a 1:1 weight ratio of TEPAN and BED supported on poly (methyl methacrylate) beads utilizing a fixed-bed flow system with 9% CO2, 3.5% O2, nitrogen balance with trace gas constituents were studied. CO2 adsorption capacity was ~ 3 mmols CO2/g{sorbent} at 40°C and 1.4 atm. No beneficial effect on IAS performance was found using a moisture-laden flue gas mixture. Tests with 750 ppmv NO in a humidified gas stream revealed negligible NO sorption onto the IAS. A high SO2 concentration resulted in incremental loss in IAS performance and revealed progressive degrees of “staining” upon testing. Adsorption of SO2 by the IAS necessitates upstream removal of SO2 prior to CO2 capture.

  9. Quantum Monte Carlo Study of the Ground-State Properties of a Fermi Gas in the BCS-BEC Crossover

    SciTech Connect (OSTI)

    Giorgini, S.; Astrakharchik, G. E.; Boronat, J.; Casulleras, J.

    2006-11-07

    The ground-state properties of a two-component Fermi gas with attractive short-range interactions are calculated using the fixed-node diffusion Monte Carlo method. The interaction strength is varied over a wide range by tuning the value of the s-wave scattering length of the two-body potential. We calculate the ground-state energy per particle and we characterize the equation of state of the system. Off-diagonal long-range order is investigated through the asymptotic behavior of the two-body density matrix. The condensate fraction of pairs is calculated in the unitary limit and on both sides of the BCS-BEC crossover.

  10. Gas separating

    DOE Patents [OSTI]

    Gollan, A.Z.

    1990-12-25

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing. 3 figs.

  11. Gas separating

    DOE Patents [OSTI]

    Gollan, A.

    1988-03-29

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing. 3 figs.

  12. A Study of Advanced Materials for Gas Turbine Coatings at Elevated Temperatures Using Selected Microstructures and Characteristic Environments for Syngas Combustion

    SciTech Connect (OSTI)

    Ravinder Diwan; Patrick Mensah; Guoqiang Li; Nalini Uppu; Strphen Akwaboa; Monica Silva; Ebubekir Beyazoglu; Ogad Agu; Naresh Polasa; Lawrence Bazille; Douglas Wolfe; Purush Sahoo

    2011-02-10

    Thermal barrier coatings (TBCs) that can be suitable for use in industrial gas turbine engines have been processed and compared with electron beam physical vapor deposition (EBPVD) microstructures for applications in advanced gas turbines that use coal-derived synthesis gas. Thermo-physical properties have been evaluated of the processed air plasma sprayed TBCs with standard APS-STD and vertically cracked APS-VC coatings samples up to 1300 C. Porosity of these selected coatings with related microstructural effects have been analyzed in this study. Wet and dry thermal cycling studies at 1125 C and spalling resistance thermal cycling studies to 1200 C have also been carried out. Type I and Type II hot corrosion tests were carried out to investigate the effects of microstructure variations and additions of alumina in YSZ top coats in multi-layered TBC structures. The thermal modeling of turbine blade has also been carried out that gives the capability to predict in-service performance temperature gradients. In addition to isothermal high temperature oxidation kinetics analysis in YSZ thermal barrier coatings of NiCoCrAlY bond coats with 0.25% Hf. This can affect the failure behavior depending on the control of the thermally grown oxide (TGO) growth at the interface. The TGO growth kinetics is seen to be parabolic and the activation energies correspond to interfacial growth kinetics that is controlled by the diffusion of O{sub 2} in Al{sub 2}O{sub 3}. The difference between oxidation behavior of the VC and STD structures are attributed to the effects of microstructure morphology and porosity on oxygen ingression into the zirconia and TGO layers. The isothermal oxidation resistance of the STD and VC microstructures is similar at temperatures up to 1200 C. However, the generally thicker TGO layer thicknesses and the slightly faster oxidation rates in the VC microstructures are attributed to the increased ingression of oxygen through the grain boundaries of the vertically cracked microstructures. The plasma sprayed TBC microstructure (VC and STD) with NiCoCrAlY-Hf bond coat are stable up to 1100 C. However, as with other TBC structures, a considerable amount of interdiffusion was observed in the different layers, although the TBC growth was self-limiting and parabolic. The addition of Hf to the VC microstructure appears to have some potential for the future development of robust TBCs with improved isothermal and service temperatures in advanced gas turbines.

  13. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report, October 1, 1992--December 31, 1992

    SciTech Connect (OSTI)

    Nur, A.

    1993-01-21

    This was the fifth quarter of the contract. During this quarter we (1) got approval for the NEPA requirements related to the field work, (2) placed the subcontract for the field data acquisition, (3) completed the field work, and (4) began processing the seismic data. As already reported, the field data acquisition was at Acomo`s Powder River Basin site in southeast Wyoming. This is a low permeability fractured site, with both gas and oil present. The reservoir is highly compartmentalized, due to the low permeability, with the fractures providing the only practical drainage paths for production. The two formations of interest are: The Niobrara: a fractured shale and limey shale to chalk, which is a reservoir rock, but also its own source rock. The Frontier: a tight sandstone lying directly below the Niobrara, brought into contact with it by an unconformity. The fractures are thought to lie in a roughly northwest-southeast trend, along the strike of a flexure, which forms one of the boundaries of the basin.

  14. Gas-phase study of the reactivity of optical coating materials with hydrocarbons by use of a desktop-size extreme-ultraviolet laser

    SciTech Connect (OSTI)

    Heinbuch, Scott; Rocca, Jorge J. [Department of Electrical and Computer Engineering, Colorado State University, 1320 Campus Delivery, Fort Collins, Colorado 80523-1320 (United States); National Science Foundation, Engineering Research Center for Extreme Ultraviolet Science and Technology, Colorado State University, 1320 Campus Delivery, Fort Collins, Colorado 80523-1320 (United States); Dong Feng; Bernstein, Elliot R. [National Science Foundation, Engineering Research Center for Extreme Ultraviolet Science and Technology, Colorado State University, 1320 Campus Delivery, Fort Collins, Colorado 80523-1320 (United States); Department of Chemistry, Colorado State University, 1872 Campus Delivery, Fort Collins, Colorado 80523-1872 (United States)

    2008-07-15

    The reactivity of prospective capping-layer extreme-ultraviolet (EUV) mirror materials with hydrocarbons is studied in the gas phase by use of mass spectroscopy of metal-oxide clusters. We report the results of chemistry studies for Si{sub m}, Ti{sub m}, Hf{sub m}, and Zr{sub m}O{sub n} metal-oxide clusters in which the reaction products were ionized with little or no fragmentation by 26.5 eV photons from a desktop-size 46.9 nm Ne-like Ar laser. Hf and Zr oxides are found to be much less reactive than Si or Ti oxides in the presence of EUV light. The results are relevant to the design of EUV mirror capping layers that are resistant to carbon contamination.

  15. Conceptual design study on very small long-life gas cooled fast reactor using metallic natural Uranium-Zr as fuel cycle input

    SciTech Connect (OSTI)

    Monado, Fiber; Ariani, Menik; Su'ud, Zaki; Waris, Abdul; Basar, Khairul; Permana, Sidik; Aziz, Ferhat; Sekimoto, Hiroshi

    2014-02-12

    A conceptual design study of very small 350 MWth Gas-cooled Fast Reactors with Helium coolant has been performed. In this study Modified CANDLE burn-up scheme was implemented to create small and long life fast reactors with natural Uranium as fuel cycle input. Such system can utilize natural Uranium resources efficiently without the necessity of enrichment plant or reprocessing plant. The core with metallic fuel based was subdivided into 10 regions with the same volume. The fresh Natural Uranium is initially put in region-1, after one cycle of 10 years of burn-up it is shifted to region-2 and the each region-1 is filled by fresh Natural Uranium fuel. This concept is basically applied to all axial regions. The reactor discharge burn-up is 31.8% HM. From the neutronic point of view, this design is in compliance with good performance.

  16. Kalman-filtered compressive sensing for high resolution estimation of anthropogenic greenhouse gas emissions from sparse measurements.

    SciTech Connect (OSTI)

    Ray, Jaideep; Lee, Jina; Lefantzi, Sophia; Yadav, Vineet; Michalak, Anna M.; van Bloemen Waanders, Bart Gustaaf; McKenna, Sean Andrew

    2013-09-01

    The estimation of fossil-fuel CO2 emissions (ffCO2) from limited ground-based and satellite measurements of CO2 concentrations will form a key component of the monitoring of treaties aimed at the abatement of greenhouse gas emissions. The limited nature of the measured data leads to a severely-underdetermined estimation problem. If the estimation is performed at fine spatial resolutions, it can also be computationally expensive. In order to enable such estimations, advances are needed in the spatial representation of ffCO2 emissions, scalable inversion algorithms and the identification of observables to measure. To that end, we investigate parsimonious spatial parameterizations of ffCO2 emissions which can be used in atmospheric inversions. We devise and test three random field models, based on wavelets, Gaussian kernels and covariance structures derived from easily-observed proxies of human activity. In doing so, we constructed a novel inversion algorithm, based on compressive sensing and sparse reconstruction, to perform the estimation. We also address scalable ensemble Kalman filters as an inversion mechanism and quantify the impact of Gaussian assumptions inherent in them. We find that the assumption does not impact the estimates of mean ffCO2 source strengths appreciably, but a comparison with Markov chain Monte Carlo estimates show significant differences in the variance of the source strengths. Finally, we study if the very different spatial natures of biogenic and ffCO2 emissions can be used to estimate them, in a disaggregated fashion, solely from CO2 concentration measurements, without extra information from products of incomplete combustion e.g., CO. We find that this is possible during the winter months, though the errors can be as large as 50%.

  17. Decreasing Soft Costs for Solar Photovoltaics by Improving the Interconnection Process. A Case Study of Pacific Gas and Electric

    SciTech Connect (OSTI)

    Ardani, Kristen; Margolis, Robert

    2015-09-01

    In this case study, we examine how PG&E achieved a faster, more efficient interconnection approval process despite rising application volumes. Our goal is to draw insights from PG&E's experience that can help to inform decision making at other utilities across the U.S. that may face similar trajectories for DG PV market growth.

  18. www.myresources.com.au OIL & GAS BULLETIN VOL. 15, NO. 11 PAGE 9 Safety first: Oil rigs off the north west shelf will be studied for

    E-Print Network [OSTI]

    , petrophysics, geomechanics and drilling issues and map the tight gas sweet spots of the Whicher Range field

  19. A Well Performance Study of Eagle Ford Shale Gas Wells Integrating Empirical Time-Rate and Analytical Time-Rate-Pressure Analysis 

    E-Print Network [OSTI]

    Davis, Avery S

    2015-08-10

    estimated flowrate decline and historic gas flowrate data (qg) versus production time. ............................................................................................................................ 69 4.14 (Log-log Plot): PVT revised gas 30.... ................................................................................................................. 80 4.28 (Log-log Plot): PVT revised gas 30-year estimated cumulative production volume model comparison –– Arps modified hyperbolic decline model, power-law exponential decline model, and 50 percent and 100 percent completion efficiency RTA model...

  20. Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li, Center for Gravity, Electrical, and Magnetic Studies, Colorado School of Mines

    E-Print Network [OSTI]

    Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li basins and have strong remanent magnetization. The appli- cation arises in exploration of natural gas identify the volcanic units at large depths. INTRODUCTION Exploration for natural gas hosted in volcanics

  1. Feasibility study to evaluate plasma quench process for natural gas conversion applications. [Quarterly report], July 1, 1993--September 30, 1993

    SciTech Connect (OSTI)

    Thomas, C.P.; Kong, P.C.; Detering, B.A.

    1993-12-31

    The objective of this work was to conduct a feasibility study on a new process, called the plasma quench process, for the conversion of methane to acetylene. FY-1993 efforts were focused on determining the economic viability of this process using bench scale experimental data which was previously generated. This report presents the economic analysis and conclusions of the analysis. Future research directions are briefly described.

  2. Pulse studies to decipher the role of surface morphology in CuO/CeO? nanocatalysts for the water gas shift reaction

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

    Rodriguez, Jose A.; Zhao, Fuzhen; Liu, Zongyuan; Xu, Wenqian; Yao, Siyu; Si, Rui; Johnston-Peck, Aaron C.; Martinez-Arias, Arturo; Hanson, Jonathan C.; Senanayake, Sanjaya D.

    2015-01-23

    The water-gas shift reaction (WGS, CO + H?O ? CO?) was studied over CuO/CeO? catalysts with two different ceria particle morphohologies, in the form of nanospheres (ns) and nanocubes (nc). To understand the strong dependence of the WGS reaction activity on the ceria nanoshapes, pulses of CO (without and with water vapor) were employed during in situ X-ray diffraction (XRD) and X-ray absoprtion near edge structure (XANES) measurements done to characterize the catalysts. The results showed that CuO/CeO? (ns) exhibited a substantially better activity than CuO/CeO? (nc). The higher activity was associated with the unique properties of CuO/CeO? (ns), suchmore »as the easier reduction of highly dispersed CuO to metallic Cu, the stability of metallic Cu and a larger concentration Ce³? in CeO? (ns).« less

  3. Pulse studies to decipher the role of surface morphology in CuO/CeO? nanocatalysts for the water gas shift reaction

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

    Rodriguez, Jose A. [Brookhaven National Lab. (BNL), Upton, NY (United States); Zhao, Fuzhen [South-Central Univ. for Nationalities, Wuhan, Hubei (China); Brookhaven National Lab., Upton, NY (United States); Liu, Zongyuan [Brookhaven National Lab. (BNL), Upton, NY (United States); Xu, Wenqian [Brookhaven National Lab. (BNL), Upton, NY (United States); Yao, Siyu [Brookhaven National Lab. (BNL), Upton, NY (United States); Si, Rui [Brookhaven National Lab. (BNL), Upton, NY (United States); Johnston-Peck, Aaron C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Martinez-Arias, Arturo [Inst. de Catalisis y Petroleoquimica, Consejo Superior de Investigaciones Cientificas, Madrid (Spain); Hanson, Jonathan C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Senanayake, Sanjaya D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-03-01

    The water-gas shift reaction (WGS, CO + H?O ? CO?) was studied over CuO/CeO? catalysts with two different ceria particle morphohologies, in the form of nanospheres (ns) and nanocubes (nc). To understand the strong dependence of the WGS reaction activity on the ceria nanoshapes, pulses of CO (without and with water vapor) were employed during in situ X-ray diffraction (XRD) and X-ray absoprtion near edge structure (XANES) measurements done to characterize the catalysts. The results showed that CuO/CeO? (ns) exhibited a substantially better activity than CuO/CeO? (nc). The higher activity was associated with the unique properties of CuO/CeO? (ns), such as the easier reduction of highly dispersed CuO to metallic Cu, the stability of metallic Cu and a larger concentration Ce³? in CeO? (ns).

  4. Evaluation of asbestos abatement techniques. Phase 2. Encapsulation with latex paint. Final report, May 1984-November 1985

    SciTech Connect (OSTI)

    Chesson, J.; Margeson, D.P.; Ogden, J.; Bauer, K.; Bergman, F.J.

    1986-07-01

    Airborne asbestos levels were measured by transmission electron microscopy (TEM) before, during and after encapsulation of asbestos-containing material with latex paint in a suburban junior high school. The ceilings of the school were covered with a sprayed-on material containing chrysotile asbestos. Air samples were collected at four types of sites: indoor sites with unpainted asbestos material scheduled for painting, indoor sites with asbestos material which had been painted 16 months prior to the study, indoor sites with no asbestos material, and outdoor sites on the roof of the building. Bulk samples were collected prior to painting and analyzed by polarized light microscopy (PLM) to characterize the asbestos-containing material.

  5. Gas hydrates

    SciTech Connect (OSTI)

    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.

  6. Integrated seismic study of naturally fractured tight gas reservoirs. Technical progress report, October 1, 1993--December 31, 1993

    SciTech Connect (OSTI)

    Mavko, G.; Nur, A.

    1994-01-29

    This was the ninth quarter of the contract. During this quarter we (1) continued processing the seismic data, (2) collected additional logs to aid in the interpretation, and (3)began modeling some of the P-wave amplitude anomalies that we see in the data. The study area is located at the southern end of the powder river Basin in Converse county in east-central Wyoming. It is a low permeability fractured site, with both has and oil present. Reservoirs are highly compartmentalized due tot he low permeabilities, and fractures provide the only practical drainage paths for production. The two formations of interest are: The Niobrara; a fractured shale and limey shale to chalk, which is a reservoir rock, but also its own source rock. The Frontier, a tight sandstone lying directly below the Niobrara, brought into contract with it by an unconformity.

  7. PREDICTION OF TOTAL DISSOLVED GAS EXCHANGE AT HYDROPOWER DAMS

    SciTech Connect (OSTI)

    Hadjerioua, Boualem; Pasha, MD Fayzul K; Stewart, Kevin M; Bender, Merlynn; Schneider, Michael L.

    2012-07-01

    Total dissolved gas (TDG) supersaturation in waters released at hydropower dams can cause gas bubble trauma in fisheries resulting in physical injuries and eyeball protrusion that can lead to mortality. Elevated TDG pressures in hydropower releases are generally caused by the entrainment of air in spillway releases and the subsequent exchange of atmospheric gasses into solution during passage through the stilling basin. The network of dams throughout the Columbia River Basin (CRB) are managed for irrigation, hydropower production, flood control, navigation, and fish passage that frequently result in both voluntary and involuntary spillway releases. These dam operations are constrained by state and federal water quality standards for TDG saturation which balance the benefits of spillway operations designed for Endangered Species Act (ESA)-listed fisheries versus the degradation to water quality as defined by TDG saturation. In the 1970s, the United States Environmental Protection Agency (USEPA), under the federal Clean Water Act (Section 303(d)), established a criterion not to exceed the TDG saturation level of 110% in order to protect freshwater and marine aquatic life. The states of Washington and Oregon have adopted special water quality standards for TDG saturation in the tailrace and forebays of hydropower facilities on the Columbia and Snake Rivers where spillway operations support fish passage objectives. The physical processes that affect TDG exchange at hydropower facilities have been studied throughout the CRB in site-specific studies and routine water quality monitoring programs. These data have been used to quantify the relationship between project operations, structural properties, and TDG exchange. These data have also been used to develop predictive models of TDG exchange to support real-time TDG management decisions. These empirically based predictive models have been developed for specific projects and account for both the fate of spillway and powerhouse flows in the tailrace channel and resultant exchange in route to the next downstream dam. Currently, there exists a need to summarize the general finding from operational and structural TDG abatement programs conducted throughout the CRB and for the development of a generalized prediction model that pools data collected at multiple projects with similar structural attributes. A generalized TDG exchange model can be tuned to specific projects and coupled with water regulation models to allow the formulation of optimal daily water regulation schedules subject to water quality constraints for TDG supersaturation. A generalized TDG exchange model can also be applied to other hydropower dams that affect TDG pressures in tailraces and can be used to develop alternative operational and structural measures to minimize TDG generation. It is proposed to develop a methodology for predicting TDG levels downstream of hydropower facilities with similar structural properties as a function of a set of variables that affect TDG exchange; such as tailwater depth, spill discharge and pattern, project head, and entrainment of powerhouse releases. TDG data from hydropower facilities located throughout the northwest region of the United States will be used to identify relationships between TDG exchange and relevant dependent variables. Data analysis and regression techniques will be used to develop predictive TDG exchange expressions for various structural categories.

  8. Sustainable gasificationbiochar systems? A case-study of rice-husk gasification in Cambodia, Part II: Field trial results, carbon abatement,

    E-Print Network [OSTI]

    Haszeldine, Stuart

    of the criteria of sustainability, but requires better waste water management and more field trials to demonstrate, in particular, that RHC should not be mixed with the waste water from the process but should be discharged

  9. Gas Drill 

    E-Print Network [OSTI]

    Unknown

    2011-09-05

    .C. Wang, B.T. Lovell, Program, Summary Report TE4258-5-84, J. McCrank, "Topping of a Combined Gas DOE/ET/11292, Oct. 1984. and Steam Turbine Powerplant using a TAM Combustor," Thermo Electron [4J Final Report: "Thermionic Energy Report No. 4258... for each Btu fired in the burners has been cal culated with the process gas temperature as a variable. It was shown [2 ] that the maximum thermionic power produced is 18 kW per million Btu fired per hour. All com bustors are similar but progressively...

  10. Gas sensor

    DOE Patents [OSTI]

    Schmid, Andreas K.; Mascaraque, Arantzazu; Santos, Benito; de la Figuera, Juan

    2014-09-09

    A gas sensor is described which incorporates a sensor stack comprising a first film layer of a ferromagnetic material, a spacer layer, and a second film layer of the ferromagnetic material. The first film layer is fabricated so that it exhibits a dependence of its magnetic anisotropy direction on the presence of a gas, That is, the orientation of the easy axis of magnetization will flip from out-of-plane to in-plane when the gas to be detected is present in sufficient concentration. By monitoring the change in resistance of the sensor stack when the orientation of the first layer's magnetization changes, and correlating that change with temperature one can determine both the identity and relative concentration of the detected gas. In one embodiment the stack sensor comprises a top ferromagnetic layer two mono layers thick of cobalt deposited upon a spacer layer of ruthenium, which in turn has a second layer of cobalt disposed on its other side, this second cobalt layer in contact with a programmable heater chip.

  11. NOx Abatement Research and Development

    Broader source: Energy.gov [DOE]

    Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

  12. Tax Abatement for Solar Manufacturers

    Broader source: Energy.gov [DOE]

    In May 2009, Washington enacted SB 6170, effective July 1, 2009. This bill reduced the B&O tax rate to 0.275%, effective October 1, 2009. This tax rate is 43% lower than the standard...

  13. CO2-Binding Organic Liquids Gas Capture with Polarity-Swing-Assisted Regeneration Full Technology Feasibility Study B1 - Solvent-based Systems

    SciTech Connect (OSTI)

    Heldebrant, David J

    2014-08-31

    PNNL, Fluor Corporation and Queens University (Kingston, ON) successfully completed a three year comprehensive study of the CO2BOL water-lean solvent platform with Polarity Swing Assisted Regeneration (PSAR). This study encompassed solvent synthesis, characterization, environmental toxicology, physical, thermodynamic and kinetic property measurements, Aspen Plus™ modeling and bench-scale testing of a candidate CO2BOL solvent molecule. Key Program Findings The key program findings are summarized as follows: • PSAR favorably reduced stripper duties and reboiler temperatures with little/no impact to absorption column • >90% CO2 capture was achievable at reasonable liquid-gas ratios in the absorber • High rich solvent viscosities (up to 600 cP) were successfully demonstrated in the bench-scale system. However, the projected impacts of high viscosity to capital cost and operational limits compromised the other levelized cost of electricity benefits. • Low thermal conductivity of organics significantly increased the required cross exchanger surface area, and potentially other heat exchange surfaces. • CO2BOL had low evaporative losses during bench-scale testing • There was no evidence of foaming during bench scale testing • Current CO2BOL formulation costs project to be $35/kg • Ecotoxicity (Water Daphnia) was comparable between CO2BOL and MEA (169.47 versus 103.63 mg/L) • Full dehydration of the flue gas was determined to not be economically feasible. However, modest refrigeration (13 MW for the 550 MW reference system) was determined to be potentially economically feasible, and still produce a water-lean condition for the CO2BOLs (5 wt% steady-state water loading). • CO2BOLs testing with 5 wt% water loading did not compromise anhydrous performance behavior, and showed actual enhancement of CO2 capture performance. • Mass transfer of CO2BOLs was not greatly impeded by viscosity • Facile separation of antisolvent from lean CO2BOL was demonstrated on the bench cart • No measurable solvent degradation was observed over 4 months of testing – even with 5 wt% water present

  14. Case Study - Liquefied Natural Gas

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center Home PageBlenderBusiness Case for E85California State Fire

  15. Excimer laser photolysis of V(CO)/sub 6/: time-resolved infrared studies of gas-phase V(CO)/sub x/ (x = 5-2)

    SciTech Connect (OSTI)

    Ishikawa, Y.; Hackett, P.A.; Rayner, D.M.

    1987-10-28

    The photolysis of gas-phase vanadium hexacarbonyl V(CO)/sub 6/, has been studied at excimer laser wavelengths (351, 308, 248, and 193 nm) by observing the coordinatively unsaturated transient products, V(CO)/sub x/ (x = 5-3 and possibly 2), via time-resolved infrared kinetic absorption spectroscopy. The dependence of the initial fragment distribution on photolysis wavelength is consistent with the model of sequential CO elimination established by similar studies on Fe(CO)/sub 5/, Cr(CO)/sub 6/, and Co(CO)/sub 3/NO. The high reactivity of unsaturated metal carbonyl species with saturated carbonyls to form binuclear complexes is again observed, with rate constants for the reaction of V(CO)/sub 3/ and V(CO)/sub 4/ with V(CO)/sub 6/ found to be of the order 3 x 10/sup -10/ cm/sup 3/ molecule/sup -1/ s/sup -1/. Infrared assignments for V(CO)/sub x/ are supported by kinetic measurements in the presence of added CO. Rate constants for the reaction of CO with V(CO)/sub 3/, V(CO)/sub 4/, and V(CO)/sub 5/ are found as (0.4 +/- 0.1) x 10/sup -10/, (0.5 +/- 0.1) x 10/sup -10/, and (0.5 +/- 0.1) x 10/sup -10/ cm/sup 3/ molecule/sup -1/ s/sup -1/, respectively, leading to the expectation that ground-state V(CO)/sub 3-5/ share the doublet character of V(CO)/sub 6/. The infrared assignments are in disagreement with infrared absorption and some ESR studies of V(CO)/sub x/ fragments in low-temperature matrices.

  16. A Study of Interstellar Gas and Stars in the Gravitationally Lensed Galaxy `The Cosmic Eye' from Rest-Frame Ultraviolet Spectroscopy

    E-Print Network [OSTI]

    Quider, Anna M; Pettini, Max; Steidel, Charles C; Stark, Daniel P

    2009-01-01

    We report the results of a study of the rest-frame UV spectrum of the Cosmic Eye, a luminous Lyman break galaxy at z=3.07331 gravitationally lensed by a factor of 25. The spectrum, recorded with the ESI spectrograph on the Keck II telescope, is rich in absorption features from the gas and massive stars in this galaxy. The interstellar absorption lines are resolved into two components of approximately equal strength and each spanning several hundred km/s in velocity. One component has a net blueshift of -70 km/s relative to the stars and H II regions and presumably arises in a galaxy-scale outflow similar to those seen in most star-forming galaxies at z = 2-3. The other is more unusual in showing a mean redshift of +350 km/s relative to the systemic redshift; possible interpretations include a merging clump, or material ejected by a previous star formation episode and now falling back onto the galaxy, or more simply a chance alignment with a foreground galaxy. In the metal absorption lines, both components onl...

  17. NATURAL GAS MARKET ASSESSMENT

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION NATURAL GAS MARKET ASSESSMENT PRELIMINARY RESULTS In Support.................................................................................... 6 Chapter 2: Natural Gas Demand.................................................................................................. 10 Chapter 3: Natural Gas Supply

  18. Natural Gas Applications

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Gas Applications. If you need assistance viewing this page, please call (202) 586-8800. Energy Information Administration Home Page Home > Natural Gas > Natural Gas Applications...

  19. "Assessment of the Adequacy of Natural Gas Pipeline Capacity...

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

    Related Articles QER Update and New Reports On-Line DOE-Sponsored Project to Study Shale Gas Production Favorable Supplies, Costs, Environmental Profile for Natural Gas...

  20. Blending Hydrogen into Natural Gas Pipeline Networks: A Review...

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

    extend from the Rocky Mountain region. This study assesses the potential to deliver hydrogen through the existing natural gas pipeline network as a hydrogen and natural gas...

  1. Implications of Cost Effectiveness Screening Practices in a Low Natural Gas Price Environment: Case Study of a Midwestern Residential Energy Upgrade Program

    E-Print Network [OSTI]

    Hoffman, Ian M.

    2014-01-01

    benefits, including avoided energy, capacity, transmissionKrop, R. (May 2010). Non-Energy Benefits: Status, Findings,costs. Screening a Home Energy Upgrade Program in a Low Gas

  2. CONCEPTUAL STUDIES OF A FUEL-FLEXIBLE LOW-SWIRL COMBUSTION SYSTEM FOR THE GAS TURBINE IN CLEAN COAL POWER PLANTS

    SciTech Connect (OSTI)

    Smith, K.O.; Littlejohn, David; Therkelsen, Peter; Cheng, Robert K.; Ali, S.

    2009-11-30

    This paper reports the results of preliminary analyses that show the feasibility of developing a fuel flexible (natural gas, syngas and high-hydrogen fuel) combustion system for IGCC gas turbines. Of particular interest is the use of Lawrence Berkeley National Laboratory's DLN low swirl combustion technology as the basis for the IGCC turbine combustor. Conceptual designs of the combustion system and the requirements for the fuel handling and delivery circuits are discussed. The analyses show the feasibility of a multi-fuel, utility-sized, LSI-based, gas turbine engine. A conceptual design of the fuel injection system shows that dual parallel fuel circuits can provide range of gas turbine operation in a configuration consistent with low pollutant emissions. Additionally, several issues and challenges associated with the development of such a system, such as flashback and auto-ignition of the high-hydrogen fuels, are outlined.

  3. ,"Natural Gas Consumption",,,"Natural Gas Expenditures"

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

    Census Division, 1999" ,"Natural Gas Consumption",,,"Natural Gas Expenditures" ,"per Building (thousand cubic feet)","per Square Foot (cubic feet)","per Worker (thousand cubic...

  4. Natural Gas

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963Residential2, 2014ProvedYear Jan Feb MarNGPL Production,Energy Office

  5. Studies Related to the Oregon State University High Temperature Test Facility: Scaling, the Validation Matrix, and Similarities to the Modular High Temperature Gas-Cooled Reactor

    SciTech Connect (OSTI)

    Richard R. Schultz; Paul D. Bayless; Richard W. Johnson; William T. Taitano; James R. Wolf; Glenn E. McCreery

    2010-09-01

    The Oregon State University (OSU) High Temperature Test Facility (HTTF) is an integral experimental facility that will be constructed on the OSU campus in Corvallis, Oregon. The HTTF project was initiated, by the U.S. Nuclear Regulatory Commission (NRC), on September 5, 2008 as Task 4 of the 5 year High Temperature Gas Reactor Cooperative Agreement via NRC Contract 04-08-138. Until August, 2010, when a DOE contract was initiated to fund additional capabilities for the HTTF project, all of the funding support for the HTTF was provided by the NRC via their cooperative agreement. The U.S. Department of Energy (DOE) began their involvement with the HTTF project in late 2009 via the Next Generation Nuclear Plant project. Because the NRC interests in HTTF experiments were only centered on the depressurized conduction cooldown (DCC) scenario, NGNP involvement focused on expanding the experimental envelope of the HTTF to include steady-state operations and also the pressurized conduction cooldown (PCC). Since DOE has incorporated the HTTF as an ingredient in the NGNP thermal-fluids validation program, several important outcomes should be noted: 1. The reference prismatic reactor design, that serves as the basis for scaling the HTTF, became the modular high temperature gas-cooled reactor (MHTGR). The MHTGR has also been chosen as the reference design for all of the other NGNP thermal-fluid experiments. 2. The NGNP validation matrix is being planned using the same scaling strategy that has been implemented to design the HTTF, i.e., the hierarchical two-tiered scaling methodology developed by Zuber in 1991. Using this approach a preliminary validation matrix has been designed that integrates the HTTF experiments with the other experiments planned for the NGNP thermal-fluids verification and validation project. 3. Initial analyses showed that the inherent power capability of the OSU infrastructure, which only allowed a total operational facility power capability of 0.6 MW, is inadequate to permit steady-state operation at reasonable conditions. 4. To enable the HTTF to operate at a more representative steady-state conditions, DOE recently allocated funding via a DOE subcontract to HTTF to permit an OSU infrastructure upgrade such that 2.2 MW will become available for HTTF experiments. 5. Analyses have been performed to study the relationship between HTTF and MHTGR via the hierarchical two-tiered scaling methodology which has been used successfully in the past, e.g., APEX facility scaling to the Westinghouse AP600 plant. These analyses have focused on the relationship between key variables that will be measured in the HTTF to the counterpart variables in the MHTGR with a focus on natural circulation, using nitrogen as a working fluid, and core heat transfer. 6. Both RELAP5-3D and computational fluid dynamics (CD-Adapco’s STAR-CCM+) numerical models of the MHTGR and the HTTF have been constructed and analyses are underway to study the relationship between the reference reactor and the HTTF. The HTTF is presently being designed. It has ¼-scaling relationship to the MHTGR in both the height and the diameter. Decisions have been made to design the reactor cavity cooling system (RCCS) simulation as a boundary condition for the HTTF to ensure that (a) the boundary condition is well defined and (b) the boundary condition can be modified easily to achieve the desired heat transfer sink for HTTF experimental operations.

  6. Georgia Tech Dangerous Gas

    E-Print Network [OSTI]

    Li, Mo

    1 Georgia Tech Dangerous Gas Safety Program March 2011 #12;Georgia Tech Dangerous Gas Safety.......................................................................................................... 5 6. DANGEROUS GAS USAGE REQUIREMENTS................................................. 7 6.1. RESTRICTED PURCHASE/ACQUISITION RULES: ................................................ 7 7. FLAMMABLE GAS

  7. Demonstration of a Carbonate Fuel Cell on Coal Derived Gas 

    E-Print Network [OSTI]

    Rastler, D. M.; Keeler, C. G.; Chi, C. V.

    1993-01-01

    Several studies indicate that carbonate fuel cell systems have the potential to offer efficient, cost competitive, and environmentally preferred power plants operating on natural gas or coal derived gas (“syn-gas”). To date, however, no fuel cell...

  8. Natural Gas Basics

    SciTech Connect (OSTI)

    NREL Clean Cities

    2010-04-01

    Fact sheet answers questions about natural gas production and use in transportation. Natural gas vehicles are also described.

  9. Easing the natural gas crisis: Reducing natural gas prices through increased deployment of renewable energy and energy efficiency

    E-Print Network [OSTI]

    Wiser, Ryan; Bolinger, Mark; St. Clair, Matt

    2004-01-01

    10% Figure A-3. Annual Natural Gas Heat Rates, by Study UCSBarret, C. 1992. “U.S. Natural Gas Market: A DisequilibriumCalifornia’s Reliance on Natural Gas. Santa Monica, Calif. :

  10. Unconventional gas outlook: resources, economics, and technologies

    SciTech Connect (OSTI)

    Drazga, B.

    2006-08-15

    The report explains the current and potential of the unconventional gas market including country profiles, major project case studies, and new technology research. It identifies the major players in the market and reports their current and forecasted projects, as well as current volume and anticipated output for specific projects. Contents are: Overview of unconventional gas; Global natural gas market; Drivers of unconventional gas sources; Forecast; Types of unconventional gas; Major producing regions Overall market trends; Production technology research; Economics of unconventional gas production; Barriers and challenges; Key regions: Australia, Canada, China, Russia, Ukraine, United Kingdom, United States; Major Projects; Industry Initiatives; Major players. Uneconomic or marginally economic resources such as tight (low permeability) sandstones, shale gas, and coalbed methane are considered unconventional. However, due to continued research and favorable gas prices, many previously uneconomic or marginally economic gas resources are now economically viable, and may not be considered unconventional by some companies. Unconventional gas resources are geologically distinct in that conventional gas resources are buoyancy-driven deposits, occurring as discrete accumulations in structural or stratigraphic traps, whereas unconventional gas resources are generally not buoyancy-driven deposits. The unconventional natural gas category (CAM, gas shales, tight sands, and landfill) is expected to continue at double-digit growth levels in the near term. Until 2008, demand for unconventional natural gas is likely to increase at an AAR corresponding to 10.7% from 2003, aided by prioritized research and development efforts. 1 app.

  11. Carbon sequestration in natural gas reservoirs: Enhanced gas recovery and natural gas storage

    E-Print Network [OSTI]

    Oldenburg, Curtis M.

    2003-01-01

    cushion gas for natural gas storage, Energy and Fuels, 17(RECOVERY AND NATURAL GAS STORAGE Curtis M. Oldenburg Eartheffective cushion gas for gas storage reservoirs. Thus at

  12. Gas-Phase Spectroscopy of Biomolecular

    E-Print Network [OSTI]

    de Vries, Mattanjah S.

    Gas-Phase Spectroscopy of Biomolecular Building Blocks Mattanjah S. de Vries1 and Pavel Hobza2 1, REMPI, computational chemistry, spectral hole burning, jet cooling Abstract Gas-phase spectroscopy lends. In recent years, we have seen enormous progress in the study of biomolecular building blocks in the gas

  13. Analysis of Restricted Natural Gas Supply Cases

    Reports and Publications (EIA)

    2004-01-01

    The four cases examined in this study have progressively greater impacts on overall natural gas consumption, prices, and supply. Compared to the Annual Energy Outlook 2004 reference case, the no Alaska pipeline case has the least impact; the low liquefied natural gas case has more impact; the low unconventional gas recovery case has even more impact; and the combined case has the most impact.

  14. Joint Program Report 164 Appendix B page 1 Appendix B: Comparison of U.S. Marginal Abatement Cost Curves from a

    E-Print Network [OSTI]

    by fuel type and overall reductions in energy use. We cannot easily assign distinct technologies 60 Energyuse(EJ) Coal Petrol. Prod. Gas Nuclear Hydro Renewables Biomass liquids Reduced Use -60 -50 Program Report 164 Appendix B ­ page 3 energy. Similarly, some uses of coal are reduced at low costs

  15. Fuel gas conditioning process

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A. (Union City, CA)

    2000-01-01

    A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

  16. Studies on the impact, detection, and control of microbiology influenced corrosion related to pitting failures in the Russian oil and gas industry. Final CRADA report.

    SciTech Connect (OSTI)

    Ehst, D.

    2006-09-30

    The objectives of the Project are: (1) to design effective anti-corrosion preparations (biocides, inhibitors, penetrants and their combinations) for gas- and oil-exploration industries; (2) to study a possibility of development of environmentally beneficial ('green') biocides and inhibitors of the new generation; (3) to develop chemical and microbiological methods of monitoring of sites at risk of corrosion; and (4) to evaluate potentialities in terms of technology, raw materials and material and technical basis to set up a production of effective anti-corrosion preparations of new generation in Russia. During the four years of the project 228 compounds and formulations were synthesized and studied in respect to their corrosion inhibiting activity. A series of compounds which were according to the Bubble tests more efficient (by a factor of 10-100) than the reference inhibitor SXT-1102, some possessing the similar activity or slightly better activity than new inhibitor ??-1154? (company ONDEO/Nalco). Two synthetic routes for the synthesis of mercaptopyrimidines as perspective corrosion inhibitors were developed. Mercaptopyrimidine derivatives can be obtained in one or two steps from cheap and easily available precursors. The cost for their synthesis is not high and can be further reduced after the optimization of the production processes. A new approach for lignin utilization was proposed. Water-soluble derivative of lignin can by transformed to corrosion protective layer by its electropolymerization on a steel surface. Varying lignosulfonates from different sources, as well as conditions of electrooxidation we proved, that drop in current at high anodic potentials is due to electropolymerization of lignin derivative at steel electrode surface. The electropolymerization potential can be sufficiently decreased by an increase in ionic strength of the growing solution. The lignosulfonate electropolymerization led to the considerable corrosion protection effect of carbon steel. More than three times decrease of corrosion rate on steel surface was observed after lignosulfonate electropolymerization, exceeding protective effect of standard commercially available corrosion inhibitor. Solikamsky lignin could be a promising candidate as a base for the development of the future green corrosion inhibitor. A protective effect of isothiazolones in compositions with other biocides and inhibitors was investigated. Additionally to high biocidal properties, combination of kathon 893 and copper sulfate may also produce a strong anticorrosion effect depending on concentrations of the biocides. Based on its joint biocidal and anticorrosion properties, this combination can be recommended for protection of pipelines against carbon dioxide-induced corrosion. By means of linear polarization resistance test, corrosion properties of biocides of different classes were studied. Isothiazolones can be recommended for treating oil-processing waters in Tatarstan to curb carbon dioxide - induced corrosion. A laboratory research on evaluation of the efficiency of biocides, inhibitors and penetrants by biological and physical-and-chemical methods has been carried out. It was shown that action of corrosion inhibitors and biocides strongly depends on character of their interaction with mineral substances available in waters on oil-exploration sites. It was found that one of approaches to designing environmentally safe ('green') antimicrobial formulations may be the use of synergetic combinations, which allow one to significantly decrease concentrations of biocides. It was shown that the efficacy of biocides and inhibitors depends on physicochemical characteristics of the environment. Anticorrosion and antimicrobial effects of biocides and inhibitors depended in much on the type of medium and aeration regimen. Effects of different biocides, corrosion inhibitors. penetrants and their combinations on the biofilm were investigated. It has been shown that minimal inhibiting concentrations of the reagents for the biofilm are much higher than those for aquatic mic

  17. Pennsylvania's Natural Gas Future

    E-Print Network [OSTI]

    Lee, Dongwon

    1 Pennsylvania's Natural Gas Future Penn State Natural Gas Utilization Workshop Bradley Hall sales to commercial and industrial customers ­ Natural gas, power, oil · Power generation ­ FossilMMBtuEquivalent Wellhead Gas Price, $/MMBtu Monthly US Spot Oil Price, $/MMBtu* U.S. Crude Oil vs. Natural Gas Prices, 2005

  18. System and process for the abatement of casting pollution, reclaiming resin bonded sand, and/or recovering a low BTU fuel from castings

    DOE Patents [OSTI]

    Scheffer, Karl D. (121 Governor Dr., Scotia, NY 12302)

    1984-07-03

    Air is caused to flow through the resin bonded mold to aid combustion of the resin binder to form a low BTU gas fuel. Casting heat is recovered for use in a waste heat boiler or other heat abstraction equipment. Foundry air pollution is reduced, the burned portion of the molding sand is recovered for immediate reuse and savings in fuel and other energy is achieved.

  19. System and process for the abatement of casting pollution, reclaiming resin bonded sand, and/or recovering a low Btu fuel from castings

    DOE Patents [OSTI]

    Scheffer, K.D.

    1984-07-03

    Air is caused to flow through the resin bonded mold to aid combustion of the resin binder to form a low Btu gas fuel. Casting heat is recovered for use in a waste heat boiler or other heat abstraction equipment. Foundry air pollutis reduced, the burned portion of the molding sand is recovered for immediate reuse and savings in fuel and other energy is achieved. 5 figs.

  20. The Geopolitics of Oil, Gas, and Ecology in the Caucasus and Caspian Sea Basin. 1998 Caucasus Conference Report.

    E-Print Network [OSTI]

    Garcelon, Marc; Walker, Edward W.; Patten-Wood, Alexandra; Radovich, Aleksandra

    1998-01-01

    Energy Agency, Caspian Oil and Gas. Paris: Energy Charterforecasting studies on oil and gas projects in Kazakhstan33 Map of oil and gas

  1. A Cointegration Rank Test of Market Linkages with an Application to the U.S. Natural Gas Industry

    E-Print Network [OSTI]

    Walls, W. David

    1993-01-01

    integra- tion in the natural gas industry: Evidence fromand the topology of the natural gas market." Working paperOpen Access Rights System for natural gas pipelines." Study

  2. Packed-Bed Reactor Study of NETL Sample 196c for the Removal of Carbon Dioxide from Simulated Flue Gas Mixture

    SciTech Connect (OSTI)

    Hoffman, James S.; Hammache, Sonia; Gray, McMahan L.; Fauth Daniel J.; Pennline, Henry W.

    2012-04-24

    An amine-based solid sorbent process to remove CO2 from flue gas has been investigated. The sorbent consists of polyethylenimine (PEI) immobilized onto silica (SiO2) support. Experiments were conducted in a packed-bed reactor and exit gas composition was monitored using mass spectrometry. The effects of feed gas composition (CO2 and H2O), temperature, and simulated steam regeneration were examined for both the silica support as well as the PEI-based sorbent. The artifact of the empty reactor was also quantified. Sorbent CO2 capacity loading was compared to thermogravimetric (TGA) results to further characterize adsorption isotherms and better define CO2 working capacity. Sorbent stability was monitored by periodically repeating baseline conditions throughout the parametric testing and replacing with fresh sorbent as needed. The concept of the Basic Immobilized Amine Sorbent (BIAS) Process using this sorbent within a system where sorbent continuously flows between the absorber and regenerator was introduced. The basic tenet is to manipulate or control the level of moisture on the sorbent as it travels around the sorbent circulation path between absorption and regeneration stages to minimize its effect on regeneration heat duty.

  3. Study on multiphase flow and mixing in semidry flue gas desulfurization with a multifluid alkaline spray generator using particle image velocimetry

    SciTech Connect (OSTI)

    Zhou, Y.G.; Wang, D.F.; Zhang, M.C. [Shanghai Jiao Tong University, Shanghai (China)

    2009-06-15

    Particle image velocimetry (PIV) technique was used to measure the velocity fields of gas-droplet-solid multiphase flow in the experimental setup of a novel semidry flue gas desulfurization process with a multifluid alkaline spray generator. The flow structure, mixing characteristic, and interphase interaction of gas-droplet-solid multiphase flow were investigated both in the confined alkaline spray generator and in the duct bent pipe section. The results show that sorbent particles in the confined alkaline spray generator are entrained into the spray core zone by a high-speed spray jet and most of the sorbent particles can be effectively humidified by spray water fine droplets to form aqueous lime slurry droplets. Moreover, a minimum amount of air stream in the generator is necessary to achieve higher collision humidification efficiency between sorbent particles and spray water droplets and to prevent the possible deposition of fine droplets on the wall. The appropriate penetration length of the slurry droplets from the generator can make uniform mixing between the formed slurry droplets and main air stream in the duct bent pipe section, which is beneficial to improving sulfur dioxide removal efficiency and to preventing the deposition of droplets on the wall.

  4. Model Catalysis of Ammonia Synthesis ad Iron-Water Interfaces - ASum Frequency Generation Vibrational Spectroscopic Study of Solid-GasInterfaces and Anion Photoelectron Spectroscopic Study of Selected Anionclusters

    SciTech Connect (OSTI)

    Ferguson, Michael James

    2005-12-15

    The ammonia synthesis reaction has been studied using single crystal model catalysis combined with sum frequency generation (SFG) vibrational spectroscopy. The adsorption of gases N{sub 2}, H{sub 2}, O{sub 2} and NH{sub 3} that play a role in ammonia synthesis have been studied on the Fe(111) crystal surface by sum frequency generation vibrational spectroscopy using an integrated Ultra-High Vacuum (UHV)/high-pressure system. SFG spectra are presented for the dissociation intermediates, NH{sub 2} ({approx}3325 cm{sup -1}) and NH ({approx}3235 cm{sup -1}) under high pressure of ammonia or equilibrium concentrations of reactants and products on Fe(111) surfaces. Special attention was paid to understand how potassium promotion of the iron catalyst affects the intermediates of ammonia synthesis. An Fe(111) surface promoted with 0.2 monolayers of potassium red shifts the vibrational frequencies of the reactive surface intermediates, NH and NH{sub 2}, providing evidence for weakened the nitrogen-hydrogen bonds relative to clean Fe(111). Spectral features of these surface intermediates persisted to higher temperatures for promoted iron surfaces than for clean Fe(111) surfaces implying that nitrogen-iron bonds are stronger for the promoted surface. The ratio of the NH to NH{sub 2} signal changed for promoted surfaces in the presence of equilibrium concentrations of reactants and products. The order of adding oxygen and potassium to promoted surfaces does not alter the spectra indicating that ammonia induces surface reconstruction of the catalyst to produce the same surface morphology. When oxygen is co-adsorbed with nitrogen, hydrogen, ammonia or potassium on Fe(111), a relative phase shift of the spectra occurs as compared to the presence of adsorbates on clean iron surfaces. Water adsorption on iron was also probed using SFG vibrational spectroscopy. For both H{sub 2}O and D{sub 2}O, the only spectral feature was in the range of the free OH or free OD. From the absence of SFG spectra of ice-like structure we conclude that surface hydroxides are formed and no liquid water is present on the surface. Other than model catalysis, gas phase anion photoelectron spectroscopy of the Cl + H{sub 2} van der Waals well, silicon clusters, germanium clusters, aluminum oxide clusters and indium phosphide clusters were studied. The spectra help to map out the neutral potential energy surfaces of the clusters. For aluminum oxide, the structures of the anions and neutrals were explored and for silicon, germanium and indium phosphide the electronic structure of larger clusters was mapped out.

  5. Supervisory Natural Gas Analyst

    Broader source: Energy.gov [DOE]

    The Department of Energys Office of Fossil Energy, Office of Oil and Natural Gas, Office of Oil and Gas Global Security and Supply (FE) is responsible for regulating natural gas imports and exports...

  6. Industrial Gas Turbines

    Broader source: 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,...

  7. Future of Natural Gas

    Energy Savers [EERE]

    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 *...

  8. Gas Kick Mechanistic Model 

    E-Print Network [OSTI]

    Zubairy, Raheel

    2014-04-18

    Gas kicks occur during drilling when the formation pressure is greater than the wellbore pressure causing influx of gas into the wellbore. Uncontrolled gas kicks could result in blowout of the rig causing major financial ...

  9. ,"Total Natural Gas Consumption

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

    Gas Consumption (billion cubic feet)",,,,,"Natural Gas Energy Intensity (cubic feetsquare foot)" ,"Total ","Space Heating","Water Heating","Cook- ing","Other","Total ","Space...

  10. Natural gas dehydration apparatus

    DOE Patents [OSTI]

    Wijmans, Johannes G; Ng, Alvin; Mairal, Anurag P

    2006-11-07

    A process and corresponding apparatus for dehydrating gas, especially natural gas. The process includes an absorption step and a membrane pervaporation step to regenerate the liquid sorbent.

  11. Understanding the Distributed Intra-Catalyst Impact of Sulfation on Water Gas Shift in a Lean NOx Trap Catalyst

    Broader source: Energy.gov [DOE]

    The Lean NOx Trap catalyst is an aftertreatment technology for abatement of nitrogen-oxide emissions from lean-burn vehicle engines.

  12. The efficient use of natural gas in transportation

    SciTech Connect (OSTI)

    Stodolsky, F.; Santini, D.J.

    1992-04-01

    Concerns over air quality and greenhouse gas emissions have prompted discussion as well as action on alternative fuels and energy efficiency. Natural gas and natural gas derived fuels and fuel additives are prime alternative fuel candidates for the transportation sector. In this study, we reexamine and add to past work on energy efficiency and greenhouse gas emissions of natural gas fuels for transportation (DeLuchi 1991, Santini et a. 1989, Ho and Renner 1990, Unnasch et al. 1989). We add to past work by looking at Methyl tertiary butyl ether (from natural gas and butane component of natural gas), alkylate (from natural gas butanes), and gasoline from natural gas. We also reexamine compressed natural gas, liquified natural gas, liquified petroleum gas, and methanol based on our analysis of vehicle efficiency potential. We compare the results against nonoxygenated gasoline.

  13. The efficient use of natural gas in transportation

    SciTech Connect (OSTI)

    Stodolsky, F.; Santini, D.J.

    1992-01-01

    Concerns over air quality and greenhouse gas emissions have prompted discussion as well as action on alternative fuels and energy efficiency. Natural gas and natural gas derived fuels and fuel additives are prime alternative fuel candidates for the transportation sector. In this study, we reexamine and add to past work on energy efficiency and greenhouse gas emissions of natural gas fuels for transportation (DeLuchi 1991, Santini et a. 1989, Ho and Renner 1990, Unnasch et al. 1989). We add to past work by looking at Methyl tertiary butyl ether (from natural gas and butane component of natural gas), alkylate (from natural gas butanes), and gasoline from natural gas. We also reexamine compressed natural gas, liquified natural gas, liquified petroleum gas, and methanol based on our analysis of vehicle efficiency potential. We compare the results against nonoxygenated gasoline.

  14. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH[sub 3] as a reductant. Oxidized Green River oil shale heated at 10[degree]C/min in an Ar/O[sub 2]/NO/NH[sub 3] mixture ([approximately]93%/6%/2000 ppM/4000 ppM) with a gas residence time of [approximately]0.6 sec removed NO between 250 and 500[degree]C, with maximum removal of 70% at [approximately]400[degree]C. Under isothermal conditions with the same gas mixture, the maximum NO removal was [approximately]64%. When CO[sub 2] was added to the gas mixture at [approximately]8%, the NO removal dropped to [approximately]50%. However, increasing the gas residence time to [approximately]1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH[sub 3] as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH[sub 3] as the reductant. Parameters calculated for implementing oxidized oil shale for NO[sub x] remediation on the current HRS retort indicate an abatement device is practical to construct.

  15. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH{sub 3} as a reductant. Oxidized Green River oil shale heated at 10{degree}C/min in an Ar/O{sub 2}/NO/NH{sub 3} mixture ({approximately}93%/6%/2000 ppM/4000 ppM) with a gas residence time of {approximately}0.6 sec removed NO between 250 and 500{degree}C, with maximum removal of 70% at {approximately}400{degree}C. Under isothermal conditions with the same gas mixture, the maximum NO removal was {approximately}64%. When CO{sub 2} was added to the gas mixture at {approximately}8%, the NO removal dropped to {approximately}50%. However, increasing the gas residence time to {approximately}1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH{sub 3} as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH{sub 3} as the reductant. Parameters calculated for implementing oxidized oil shale for NO{sub x} remediation on the current HRS retort indicate an abatement device is practical to construct.

  16. Experimental apparatus for simultaneous dehydration and sweetening of natural gas 

    E-Print Network [OSTI]

    Pace, Christopher Lee

    1997-01-01

    An experimental apparatus was designed and built for the purpose of studying the feasibility of solvent mixtures for the simultaneous dehydration and sweetening of natural gas. The apparatus is versatile and can be used to study gas-solvent systems...

  17. Comparative Analysis of Modeling Studies on China's Future Energy and Emissions Outlook

    SciTech Connect (OSTI)

    Zheng, Nina; Zhou, Nan; Fridley, David

    2010-09-01

    The past decade has seen the development of various scenarios describing long-term patterns of future Greenhouse Gas (GHG) emissions, with each new approach adding insights to our understanding of the changing dynamics of energy consumption and aggregate future energy trends. With the recent growing focus on China's energy use and emission mitigation potential, a range of Chinese outlook models have been developed across different institutions including in China's Energy Research Institute's 2050 China Energy and CO2 Emissions Report, McKinsey & Co's China's Green Revolution report, the UK Sussex Energy Group and Tyndall Centre's China's Energy Transition report, and the China-specific section of the IEA World Energy Outlook 2009. At the same time, the China Energy Group at Lawrence Berkeley National Laboratory (LBNL) has developed a bottom-up, end-use energy model for China with scenario analysis of energy and emission pathways out to 2050. A robust and credible energy and emission model will play a key role in informing policymakers by assessing efficiency policy impacts and understanding the dynamics of future energy consumption and energy saving and emission reduction potential. This is especially true for developing countries such as China, where uncertainties are greater while the economy continues to undergo rapid growth and industrialization. A slightly different assumption or storyline could result in significant discrepancies among different model results. Therefore, it is necessary to understand the key models in terms of their scope, methodologies, key driver assumptions and the associated findings. A comparative analysis of LBNL's energy end-use model scenarios with the five above studies was thus conducted to examine similarities and divergences in methodologies, scenario storylines, macroeconomic drivers and assumptions as well as aggregate energy and emission scenario results. Besides directly tracing different energy and CO{sub 2} savings potential back to the underlying strategies and combination of efficiency and abatement policy instruments represented by each scenario, this analysis also had other important but often overlooked findings.

  18. Carbon sequestration in natural gas reservoirs: Enhanced gas recovery and natural gas storage

    E-Print Network [OSTI]

    Oldenburg, Curtis M.

    2003-01-01

    Hydrogen production from natural gas, sequestration ofunderground storage of natural gas, Jour. Petrol. Tech. 943,dioxide as cushion gas for natural gas storage, Energy and

  19. Formation of porous gas hydrates

    E-Print Network [OSTI]

    Salamatin, Andrey N

    2015-01-01

    Gas hydrates grown at gas-ice interfaces are examined by electron microscopy and found to have a submicron porous texture. Permeability of the intervening hydrate layers provides the connection between the two counterparts (gas and water molecules) of the clathration reaction and makes further hydrate formation possible. The study is focused on phenomenological description of principal stages and rate-limiting processes that control the kinetics of the porous gas hydrate crystal growth from ice powders. Although the detailed physical mechanisms involved in the porous hydrate formation still are not fully understood, the initial stage of hydrate film spreading over the ice surface should be distinguished from the subsequent stage which is presumably limited by the clathration reaction at the ice-hydrate interface and develops after the ice grain coating is finished. The model reveals a time dependence of the reaction degree essentially different from that when the rate-limiting step of the hydrate formation at...

  20. Underground natural gas storage reservoir management

    SciTech Connect (OSTI)

    Ortiz, I.; Anthony, R.

    1995-06-01

    The objective of this study is to research technologies and methodologies that will reduce the costs associated with the operation and maintenance of underground natural gas storage. This effort will include a survey of public information to determine the amount of natural gas lost from underground storage fields, determine the causes of this lost gas, and develop strategies and remedial designs to reduce or stop the gas loss from selected fields. Phase I includes a detailed survey of US natural gas storage reservoirs to determine the actual amount of natural gas annually lost from underground storage fields. These reservoirs will be ranked, the resultant will include the amount of gas and revenue annually lost. The results will be analyzed in conjunction with the type (geologic) of storage reservoirs to determine the significance and impact of the gas loss. A report of the work accomplished will be prepared. The report will include: (1) a summary list by geologic type of US gas storage reservoirs and their annual underground gas storage losses in ft{sup 3}; (2) a rank by geologic classifications as to the amount of gas lost and the resultant lost revenue; and (3) show the level of significance and impact of the losses by geologic type. Concurrently, the amount of storage activity has increased in conjunction with the net increase of natural gas imports as shown on Figure No. 3. Storage is playing an ever increasing importance in supplying the domestic energy requirements.

  1. Danish Energy Authority Poland -Electricity and gas

    E-Print Network [OSTI]

    Danish Energy Authority Poland - Electricity and gas market development study and practical guidelines for using EU Funds Electricity sector analyses December 2004 #12;Danish Energy Authority Poland - Electricity and gas market development study and practical guidelines for using EU Funds Electricity sector

  2. Using multi-layer models to forecast gas flow rates in tight gas reservoirs 

    E-Print Network [OSTI]

    Jerez Vera, Sergio Armando

    2007-04-25

    USING MULTI-LAYER MODELS TO FORECAST GAS FLOW RATES IN TIGHT GAS RESERVOIRS A Thesis by SERGIO ARMANDO JEREZ VERA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2006 Major Subject: Petroleum Engineering USING MULTI-LAYER MODELS TO FORECAST GAS FLOW RATES IN TIGHT GAS RESERVOIRS A Thesis by SERGIO ARMANDO JEREZ VERA Submitted...

  3. Accounting for Adsorbed gas and its effect on production bahavior of Shale Gas Reservoirs 

    E-Print Network [OSTI]

    Mengal, Salman Akram

    2010-10-12

    FOR ADSORBED GAS AND ITS EFFECT ON PRODUCTION BEHAVIOR OF SHALE GAS RESERVOIRS A Thesis by SALMAN AKRAM MENGAL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 2010 Major Subject: Petroleum Engineering ACCOUNTING FOR ADSORBED GAS AND ITS EFFECT ON PRODUCTION BEHAVIOR OF SHALE GAS RESERVOIRS A Thesis by SALMAN AKRAM MENGAL Submitted to the Office...

  4. Noble gas magnetic resonator

    DOE Patents [OSTI]

    Walker, Thad Gilbert; Lancor, Brian Robert; Wyllie, Robert

    2014-04-15

    Precise measurements of a precessional rate of noble gas in a magnetic field is obtained by constraining the time averaged direction of the spins of a stimulating alkali gas to lie in a plane transverse to the magnetic field. In this way, the magnetic field of the alkali gas does not provide a net contribution to the precessional rate of the noble gas.

  5. Compressed gas manifold

    DOE Patents [OSTI]

    Hildebrand, Richard J. (Edgemere, MD); Wozniak, John J. (Columbia, MD)

    2001-01-01

    A compressed gas storage cell interconnecting manifold including a thermally activated pressure relief device, a manual safety shut-off valve, and a port for connecting the compressed gas storage cells to a motor vehicle power source and to a refueling adapter. The manifold is mechanically and pneumatically connected to a compressed gas storage cell by a bolt including a gas passage therein.

  6. OIL & GAS INSTITUTE Introduction

    E-Print Network [OSTI]

    Strathclyde, University of

    OIL & GAS INSTITUTE CONTENTS Introduction Asset Integrity Underpinning Capabilities 2 4 4 6 8 9 10 COMPETITIVENESS UNIVERSITY of STRATHCLYDE OIL & GAS INSTITUTE OIL & GAS EXPERTISE AND PARTNERSHIPS #12;1 The launch of the Strathclyde Oil & Gas Institute represents an important step forward for the University

  7. Ideal Gas Carnot Engines and Efficiency Chemistry 223

    E-Print Network [OSTI]

    Ronis, David M.

    Ideal Gas Carnot Engines and Efficiency Chemistry 223 Fig. 1. The Carnot Cycle The Carnot engine parts of the Carnot cycle for an ideal gas. 1. Energy in an Ideal Gas: Joule's Experiment In his study depicted below: Fall Term, 2014 #12;Ideal Gas Carnot Engines and Efficiency -2- Chemistry 223 P=0

  8. Natural Gas and the Transformation of the U.S. Energy Sector: A Program Studying Multi-sector Opportunities and Impacts

    SciTech Connect (OSTI)

    Gossett, S.

    2013-01-01

    In recognition of the major transitions occurring within the U.S. energy economy, the Joint Institute for Strategic Energy Analysis (JISEA) and Stanford University's Precourt Institute for Energy (PIE) engaged energy system stakeholders from government, industry, academia, and the environmental community in a discussion about the priority issues for a program of rigorous research relating to natural gas. Held December 10-11, 2012 on the Golden, CO campus of the National Renewable Energy Laboratory, the workshop provided invited experts opportunity to describe the state of current knowledge in defined topic areas, and to suggest analytic priorities for that topic area. Following discussion, all stakeholders then contributed potential research questions for each topic, and then determined priorities through an interactive voting process. This record of proceedings focuses on the outcomes of the discussion.

  9. Gas hydrates: Technology status report

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    In 1983, the US Department of Energy (DOE) assumed the responsibility for expanding the knowledge base and for developing methods to recover gas from hydrates. These are ice-like mixtures of gas and water where gas molecules are trapped within a framework of water molecules. This research is part of the Unconventional Gas Recovery (UGR) program, a multidisciplinary effort that focuses on developing the technology to produce natural gas from resources that have been classified as unconventional because of their unique geologies and production mechanisms. Current work on gas hydrates emphasizes geological studies; characterization of the resource; and generic research, including modeling of reservoir conditions, production concepts, and predictive strategies for stimulated wells. Complementing this work is research on in situ detection of hydrates and field tests to verify extraction methods. Thus, current research will provide a comprehensive technology base from which estimates of reserve potential can be made, and from which industry can develop recovery strategies. 7 refs., 3 figs., 6 tabs.

  10. RADIOLYTIC GAS PRODUCTION RATES OF POLYMERS EXPOSED TO TRITIUM GAS

    SciTech Connect (OSTI)

    Clark, E.

    2013-08-31

    Data from previous reports on studies of polymers exposed to tritium gas is further analyzed to estimate rates of radiolytic gas production. Also, graphs of gas release during tritium exposure from ultrahigh molecular weight polyethylene (UHMW-PE), polytetrafluoroethylene (PTFE, a trade name is Teflon®), and Vespel® polyimide are re-plotted as moles of gas as a function of time, which is consistent with a later study of tritium effects on various formulations of the elastomer ethylene-propylene-diene monomer (EPDM). These gas production rate estimates may be useful while considering using these polymers in tritium processing systems. These rates are valid at least for the longest exposure times for each material, two years for UHMW-PE, PTFE, and Vespel®, and fourteen months for filled and unfilled EPDM. Note that the production “rate” for Vespel® is a quantity of H{sub 2} produced during a single exposure to tritium, independent of length of time. The larger production rate per unit mass for unfilled EPDM results from the lack of filler- the carbon black in filled EPDM does not produce H{sub 2} or HT. This is one aspect of how inert fillers reduce the effects of ionizing radiation on polymers.

  11. Supply Chain Management and Economic Valuation of Real Options in the Natural Gas

    E-Print Network [OSTI]

    Sadeh, Norman M.

    options in the natural gas and liquefied natural gas (LNG) industry, including gas pipeline transportation, ocean LNG shipping logistics, and downstream stor- age. Chapter 1 briefly introduces the natural gas and LNG industries, and the topics studied in this thesis. Chapter 2 studies how to value U.S. natural gas

  12. A modeling study of the effect of depth of burial of depleted uranium and thorium on radon gas flux at a dry desert alluvial soil radioactive waste management site (RWMS)

    SciTech Connect (OSTI)

    Lindstrom, F.T.; Cawlfield, D.E.; Emer, D.F.; Shott, G.J.

    1993-08-01

    An integral part of designing low-level waste (LLW) disposal pits and their associated closure covers in very dry desert alluvium is the use of a radon gas transport and fate model. Radon-222 has the potential to be a real heath hazard. The production of radon-222 results from the radioactive decay (a particle emission) of radium-226 in the uranium-235 and 238 Bateman chains. It is also produced in the thorium-230 series. Both long lived radionuclides have been proposed for disposal in the shallow land burial pits in Area 5 RWMS compound of Nevada Test Site (NTS). The constructed physics based model includes diffusion and barometric pressure-induced advection of an M-chain of radionuclides. The usual Bateman decay mechanics are included for each radionuclide. Both linear reversible and linear irreversible first order sorption kinetics are assumed for each radionuclide. This report presents the details of using the noble gas transport model, CASCADR9, in an engineering design study mode. Given data on the low-level waste stream, which constitutes the ultimate source of radon-222 in the RWMS, CASCADR9 is used to generate the surface flux (pCi/cm{sup 2}-sec) of radon-222 under the realistic atmospheric and alluvial soil conditions found in the RWMS at Area 5, of the NTS. Specifically, this study examines the surface flux of radon-222 as a function of the depth of burial below the land surface.

  13. GAS/LIQUID MEMBRANES FOR NATURAL GAS UPGRADING

    SciTech Connect (OSTI)

    Howard S. Meyer

    2004-10-01

    Efforts this quarter have concentrated on design and planning for of a 50 MM scf/d dehydration skid testing at ChevronTexaco's Headlee Gas Plant in Odessa, TX. Potting and module materials testing concluded. Construction of the bench-scale equipment continued and a pre-engineering study on a subsea application of the technology was performed cofunded contracts with Research Partnership for Secure Energy for America and Gas Research Institute. GTI has decreased the effort under this contract pending DOE's obligation of the total contract funding.

  14. EK424 THERMODYNAMICS AND STATISTICAL MECHANICS (Spring 2015) Thermodynamics is the study of processes (e.g., expansion of a gas, boiling of water, or diffusion

    E-Print Network [OSTI]

    Vajda, Sandor

    EK424 THERMODYNAMICS AND STATISTICAL MECHANICS (Spring 2015) Thermodynamics is the study in order to take place? We will study the thermodynamics of two types of processes: mechanical, or the chemical conversion of glucose into useful work), and a good understanding of thermodynamics is essential

  15. Historical Natural Gas Annual

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    State, 1980-1998 PDF 12 Supplemental Gas Supplies by State, 1980-1998 PDF 13 Natural Gas Production, Transmission, and Consumption by State, 1967-1998 PDF 14 Consumption of...

  16. Historical Natural Gas Annual

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    State, 1980-1997 PDF 12 Supplemental Gas Supplies by State, 1980-1997 PDF 13 Natural Gas Production, Transmission, and Consumption by State, 1967-1997 PDF 14 Consumption of...

  17. Historical Natural Gas Annual

    Gasoline and Diesel Fuel Update (EIA)

    State, 1980-1996 PDF 12 Supplemental Gas Supplies by State, 1980-1996 PDF 13 Natural Gas Production, Transmission, and Consumption by State, 1967-1996 PDF 14 Consumption of...

  18. Microminiature gas chromatograph

    DOE Patents [OSTI]

    Yu, C.M.

    1996-12-10

    A microminiature gas chromatograph ({mu}GC) comprising a least one silicon wafer, a gas injector, a column, and a detector. The gas injector has a normally closed valve for introducing a mobile phase including a sample gas in a carrier gas. The valve is fully disposed in the silicon wafer(s). The column is a microcapillary in silicon crystal with a stationary phase and is mechanically connected to receive the mobile phase from the gas injector for the molecular separation of compounds in the sample gas. The detector is mechanically connected to the column for the analysis of the separated compounds of sample gas with electronic means, e.g., ion cell, field emitter and PIN diode. 7 figs.

  19. EIA - Natural Gas Publications

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    these data from 2005 to 2009 are presented for each State. (12282010) U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Proved Reserves: 2009 National and State...

  20. Recirculating rotary gas compressor

    DOE Patents [OSTI]

    Weinbrecht, John F. (601 Oakwood Loop, NE., Albuquerque, NM 87123)

    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.

  1. Recirculating rotary gas compressor

    DOE Patents [OSTI]

    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.

  2. Natural gas annual 1996

    SciTech Connect (OSTI)

    1997-09-01

    This document provides information on the supply and disposition of natural gas to a wide audience. The 1996 data are presented in a sequence that follows natural gas from it`s production to it`s end use.

  3. Implementing a time- and location-differentiated cap-and-trade program : flexible nitrogen oxide abatement from power plants in the eastern United States

    E-Print Network [OSTI]

    Martin, Katherine C

    2007-01-01

    Studies suggest that timing and location of emissions can change the amount of ozone formed from a given amount of nitrogen oxide (NOx) by a factor of five (Mauzerall et al. 2005). Yet existing NOx cap-and-trade programs ...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Photovoltaics, Wind (All), Biomass, Hydroelectric, Hydrogen, Landfill Gas, Wind (Small), Anaerobic Digestion Property Tax Abatement for Production and Manufacturing...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    Municipal Solid Waste, Landfill Gas, Hydroelectric (Small) Property Tax Abatement for Production and Manufacturing Facilities Qualifying renewable energy manufacturing...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Hydrogen, Landfill Gas, Wind (Small), Anaerobic Digestion Property Tax Abatement for Production and Manufacturing Facilities Qualifying renewable energy manufacturing...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Municipal Solid Waste, Landfill Gas, Anaerobic Digestion Property Tax Abatement for Production and Manufacturing Facilities Qualifying renewable energy manufacturing...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat & Power, Landfill Gas, Wind (Small), Anaerobic Digestion Property Tax Abatement for Production and Manufacturing Facilities Qualifying renewable energy manufacturing...

  9. Natural gas annual 1995

    SciTech Connect (OSTI)

    1996-11-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1995 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1991 to 1995 for each Census Division and each State. Annual historical data are shown at the national level.

  10. Residual gas analysis device

    DOE Patents [OSTI]

    Thornberg, Steven M. (Peralta, NM)

    2012-07-31

    A system is provided for testing the hermeticity of a package, such as a microelectromechanical systems package containing a sealed gas volume, with a sampling device that has the capability to isolate the package and breach the gas seal connected to a pulse valve that can controllably transmit small volumes down to 2 nanoliters to a gas chamber for analysis using gas chromatography/mass spectroscopy diagnostics.

  11. Natural gas annual 1994

    SciTech Connect (OSTI)

    NONE

    1995-11-17

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1994 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1990 to 1994 for each Census Division and each State. Annual historical data are shown at the national level.

  12. Emission and chemistry of organic carbon in the gas and aerosol phase at a sub-urban site near Mexico City in March 2006 during the MILAGRO study

    E-Print Network [OSTI]

    2009-01-01

    Manage. , 57, 596–599, 2007. Peltier, R. E. , Weber, R. J. ,MILAGRO Sullivan, A. P. , Peltier, R. E. , Brock, C. A. , deR. J. , Sullivan, A. P. , Peltier, R. E. , et al. : A study

  13. Abstract--A new dual-fluid concept was studied that could eventually find application for cold-gas propulsion for small space

    E-Print Network [OSTI]

    Lightsey, Glenn

    Abstract--A new dual-fluid concept was studied that could eventually find application for cold characteristics. An automotive-type electronic fuel injector was used to meter and deliver the propellant. Ejected

  14. Rotational-translational relaxation effects in diatomic-gas flows

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    Rotational-translational relaxation effects in diatomic-gas flows V.V. Riabov Department the nonequilibrium gas dynamic equations from the first prin- ciples of the kinetic theory of gases was studied exchange ratio was analyzed in [2], [3], [4], [5] for polyatomic gas mixtures. In the present study

  15. Multiscale non-adiabatic dynamics with radiative decay, case study on the post-ionization fragmentation of rare-gas tetramers

    E-Print Network [OSTI]

    Ivan Jane?ek; Tomáš Jan?a; Pavel Naar; Frederic Renard; René Kalus; Florent X. Gadéa

    2012-03-08

    In this supplementary material, we recollect, for reader's convenience, the general scheme of suggested multiscale model (Sec. 1), and basic informations about approaches used for pilot study: a detailed description of the interaction model (Sec. 2) and dynamical methods used for the dark dynamics step (Sec. 3) reported previously in two preceding studies [1, 2]. In addition, a detailed description of the treatment of radiative processes is also given (Sec. 4).

  16. Multiscale non-adiabatic dynamics with radiative decay, case study on the post-ionization fragmentation of rare-gas tetramers

    E-Print Network [OSTI]

    Jane?ek, Ivan; Naar, Pavel; Renard, Frederic; Kalus, René; Gadéa, Florent X

    2012-01-01

    In this supplementary material, we recollect, for reader's convenience, the general scheme of suggested multiscale model (Sec. 1), and basic informations about approaches used for pilot study: a detailed description of the interaction model (Sec. 2) and dynamical methods used for the dark dynamics step (Sec. 3) reported previously in two preceding studies [1, 2]. In addition, a detailed description of the treatment of radiative processes is also given (Sec. 4).

  17. Hot Gas Halos in Galaxies

    SciTech Connect (OSTI)

    Mulchaey, John S. [Carnegie Observatories (United States); Jeltema, Tesla E. [UCO/Lick Observatories (United States)

    2010-06-08

    We use Chandra and XMM-Newton to study how the hot gas content in early-type galaxies varies with environment. We find that the L{sub X}-L{sub K} relationship is steeper for field galaxies than for comparable galaxies in groups and clusters. This suggests that internal processes such as supernovae driven winds or AGN feedback may expel hot gas from low mass field galaxies. Such mechanisms are less effective in groups and clusters where the presence of an intragroup or intracluster medium may confine outflowing material.

  18. Natural gas industry directory

    SciTech Connect (OSTI)

    1999-11-01

    This directory has information on the following: associations and organizations; exploration and production; gas compression; gas processors; gathering and transmission companies; liquefied natural gas; local distribution companies; marketing firms; regulatory agencies; service companies; suppliers and manufacturers; and regional buyer`s guide.

  19. Gas Chromatography -Mass Spectrometry

    E-Print Network [OSTI]

    Nizkorodov, Sergey

    GCMS - 1 Gas Chromatography - Mass Spectrometry GC-MS ANALYSIS OF ETHANOL AND BENZENE IN GASOLINE Last updated: June 17, 2014 #12;GCMS - 2 Gas Chromatography - Mass Spectrometry GC-MS ANALYSIS). The goal of this experiment is to separate the components in a sample of gasoline using Gas Chromatography

  20. Valve for gas centrifuges

    DOE Patents [OSTI]

    Hahs, C.A.; Rurbage, C.H.

    1982-03-17

    The invention is pneumatically operated valve assembly for simulatenously (1) closing gas-transfer lines connected to a gas centrifuge or the like and (2) establishing a recycle path between two on the lines so closed. The value assembly is especially designed to be compact, fast-acting, reliable, and comparatively inexpensive. It provides large reductions in capital costs for gas-centrifuge cascades.

  1. Static gas expansion cooler

    DOE Patents [OSTI]

    Guzek, J.C.; Lujan, R.A.

    1984-01-01

    Disclosed is a cooler for television cameras and other temperature sensitive equipment. The cooler uses compressed gas ehich is accelerated to a high velocity by passing it through flow passageways having nozzle portions which expand the gas. This acceleration and expansion causes the gas to undergo a decrease in temperature thereby cooling the cooler body and adjacent temperature sensitive equipment.

  2. Renewable Natural Gas (Biomethane)

    E-Print Network [OSTI]

    California at Davis, University of

    to Landfill Owner $6.18 Total Cost Per MMBtu #12;Index Price of Natural Gas NYMEX Natural Gas Futures PricesRenewable Natural Gas (Biomethane) #12;Critical Barriers Impeding RNG as a Transportation Fuel-developer of largest RNG production project in U.S. at McCommas Bluff Landfill in Dallas, Texas · Chairman and co

  3. Atlas of major Appalachian basin gas plays

    SciTech Connect (OSTI)

    Aminian, K.; Avary, K.L.; Baranoski, M.T.; Flaherty, K.; Humphreys, M.; Smosna, R.A.

    1995-06-01

    This regional study of gas reservoirs in the Appalachian basin has four main objectives: to organize all of the -as reservoirs in the Appalachian basin into unique plays based on common age, lithology, trap type and other geologic similarities; to write, illustrate and publish an atlas of major gas plays; to prepare and submit a digital data base of geologic, engineering and reservoir parameters for each gas field; and technology transfer to the oil and gas industry during the preparation of the atlas and data base.

  4. The Canoe Ridge Natural Gas Storage Project

    SciTech Connect (OSTI)

    Reidel, Steve P.; Spane, Frank A.; Johnson, Vernon G.

    2003-06-18

    In 1999 the Pacific Gas and Electric Gas Transmission Northwest (GTN) drilled a borehole to investigate the feasibility of developing a natural gas-storage facility in a structural dome formed in Columbia River basalts in the Columbia Basin of south-central Washington State. The proposed aquifer storage facility will be an unconventional one where natural gas will be initially injected (and later retrieved) in one or multiple previous horizons (interflow zones) that are confined between deep (>700 meters) basalt flows of the Columbia River Basalt Group. This report summarizes the results of joint investigations on that feasibility study by GTN and the US Department of Energy.

  5. The impacts of technology on global unconventional gas supply 

    E-Print Network [OSTI]

    Yanty, Evi

    2009-06-02

    As energy supplies from known resources are declining, the development of new energy sources is mandatory. One reasonable source is natural gas from unconventional resources. This study focus on three types of unconventional gas resources: coalbeds...

  6. Economics and Politics of Shale Gas in Europe

    E-Print Network [OSTI]

    Chyong, Chi Kong; Reiner, David M.

    2015-01-01

    In the wake of the dramatic growth in shale gas production in the United States, interest in shale gas exploration in Europe has been driven primarily by concerns over industrial competitiveness and energy security. A number of studies have been...

  7. The Weak Tie Between Natural Gas and Oil Prices

    E-Print Network [OSTI]

    Ramberg, David J.

    Several recent studies establish that crude oil and natural gas prices are cointegrated, so that changes in the price of oil appear to translate into changes in the price of natural gas. Yet at times in the past, and very ...

  8. Transportation and Greenhouse Gas Mitigation

    E-Print Network [OSTI]

    Lutsey, Nicholas P.; Sperling, Dan

    2008-01-01

    Summary of transportation greenhouse gas mitigation optionsof alternative fuels. Low greenhouse gas fuels Mixing ofMAC) refrigerant replacement. Greenhouse gas budgets for

  9. Transportation and Greenhouse Gas Mitigation

    E-Print Network [OSTI]

    Lutsey, Nicholas P.; Sperling, Dan

    2008-01-01

    natural gas and liquefied petroleum gas have continued to make small contributions to transportation,transportation actions include electric power sector actions, eg coal to natural gas

  10. Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems: A North American Study of Energy Use, Greenhouse Gas Emissions, and Criteria Pollutant Emissions

    SciTech Connect (OSTI)

    Brinkman, Norman; Wang, Michael; Weber, Trudy; Darlington, Thomas

    2005-05-01

    An accurate assessment of future fuel/propulsion system options requires a complete vehicle fuel-cycle analysis, commonly called a well-to-wheels (WTW) analysis. This WTW study analyzes energy use and emissions associated with fuel production (or well-to-tank [WTT]) activities and energy use and emissions associated with vehicle operation (or tank-to-wheels [TTW]) activities.

  11. A new chemodynamical tool to study the evolution of galaxies in the local Universe: a quick and accurate numerical technique to compute gas cooling rate for any chemical composition

    E-Print Network [OSTI]

    Nicolas Champavert; Hervé Wozniak

    2007-03-13

    We have developed a quick and accurate numerical tool to compute gas cooling whichever its chemical composition.

  12. Natural gas leak mapper

    DOE Patents [OSTI]

    Reichardt, Thomas A. (Livermore, CA); Luong, Amy Khai (Dublin, CA); Kulp, Thomas J. (Livermore, CA); Devdas, Sanjay (Albany, CA)

    2008-05-20

    A system is described that is suitable for use in determining the location of leaks of gases having a background concentration. The system is a point-wise backscatter absorption gas measurement system that measures absorption and distance to each point of an image. The absorption measurement provides an indication of the total amount of a gas of interest, and the distance provides an estimate of the background concentration of gas. The distance is measured from the time-of-flight of laser pulse that is generated along with the absorption measurement light. The measurements are formated into an image of the presence of gas in excess of the background. Alternatively, an image of the scene is superimosed on the image of the gas to aid in locating leaks. By further modeling excess gas as a plume having a known concentration profile, the present system provides an estimate of the maximum concentration of the gas of interest.

  13. Greenhouse gas and air pollutant emission reduction potentials of renewable energy - case studies on photovoltaic and wind power introduction considering interactions among technologies in Taiwan

    SciTech Connect (OSTI)

    Yu-Ming Kuo; Yasuhiro Fukushima

    2009-03-15

    To achieve higher energy security and lower emission of greenhouse gases (GHGs) and pollutants, the development of renewable energy has attracted much attention in Taiwan. In addition to its contribution to the enhancement of reliable indigenous resources, the introduction of renewable energy such as photovoltaic (PV) and wind power systems reduces the emission of GHGs and air pollutants by substituting a part of the carbon- and pollutant-intensive power with power generated by methods that are cleaner and less carbon-intensive. To evaluate the reduction potentials, consequential changes in the operation of different types of existing power plants have to be taken into account. In this study, a linear mathematical programming model is constructed to simulate a power mix for a given power demand in a power market sharing a cost-minimization objective. By applying the model, the emission reduction potentials of capacity extension case studies, including the enhancement of PV and wind power introduction at different scales, were assessed. In particular, the consequences of power mix changes in carbon dioxide, nitrogen oxides, sulfur oxides, and particulates were discussed. Seasonally varying power demand levels, solar irradiation, and wind strength were taken into account. In this study, we have found that the synergetic reduction of carbon dioxide emission induced by PV and wind power introduction occurs under a certain level of additional installed capacity. Investigation of a greater variety of case studies on scenario development with emerging power sources becomes possible by applying the model developed in this study. 15 refs., 8 figs., 11 tabs.

  14. Reliability of natural gas cogeneration systems

    SciTech Connect (OSTI)

    1995-12-01

    Cogeneration systems fueled by natural gas exceed the reliability of most central station power generating units, according to a study conducted by RINC Corporation for Gas Research Institute (GRI). In the study, researchers obtained operating data from 122 natural gas cogeneration units nationwide representing 2,200 megawatts (MW) of capacity and nearly 2 million hours of operating time at 37 facilities. Units were grouped into categories reflecting size (from 60 kilowatts to 100 MW), type of system (gas engine or gas turbine technology), use of emission controls, and type of thermal application. Various types and sizes of gas systems reported average availability factors ranging from 90.0 to 95.8 versus a weighted average of 85.9 percent for fossil-fuel steam, nuclear, and gas-turbine-based central station power generating units. Comparisons are based on study data and data reported by the North American Electric Reliability Council for utility power plants. Gas cogeneration can improve utility operations because as a group the relatively small, dispersed cogeneration units are more reliable than one or more large central station units of similar capacity.

  15. Development of Alaskan gas hydrate resources

    SciTech Connect (OSTI)

    Kamath, V.A.; Sharma, G.D.; Patil, S.L.

    1991-06-01

    The research undertaken in this project pertains to study of various techniques for production of natural gas from Alaskan gas hydrates such as, depressurization, injection of hot water, steam, brine, methanol and ethylene glycol solutions through experimental investigation of decomposition characteristics of hydrate cores. An experimental study has been conducted to measure the effective gas permeability changes as hydrates form in the sandpack and the results have been used to determine the reduction in the effective gas permeability of the sandpack as a function of hydrate saturation. A user friendly, interactive, menu-driven, numerical difference simulator has been developed to model the dissociation of natural gas hydrates in porous media with variable thermal properties. A numerical, finite element simulator has been developed to model the dissociation of hydrates during hot water injection process.

  16. Flue gas desulfurization

    DOE Patents [OSTI]

    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.

  17. Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Systems

    E-Print Network [OSTI]

    Lieth, J. Heinrich

    299 Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Abstract The objective of this study was to get more information about the root zone, mainly the gas and ethylene, a gas sampling system was used to get gas samples from the root zone. CO2 gas samples of 20 ml

  18. Marine Electromagnetic Methods for Gas Hydrate Characterization

    E-Print Network [OSTI]

    Weitemeyer, Karen A

    2008-01-01

    data: an electromagnetic survey at Hydrate Ridge, Oregon made possible by funding from Exxon MobilExxon Mobil and from GERD, Japan to study gas hydrates. We only had 3 days of data

  19. Marine electromagnetic methods for gas hydrate characterization

    E-Print Network [OSTI]

    Weitemeyer, Karen Andrea

    2008-01-01

    data: an electromagnetic survey at Hydrate Ridge, Oregon made possible by funding from Exxon MobilExxon Mobil and from GERD, Japan to study gas hydrates. We only had 3 days of data

  20. NATURAL GAS RESOURCES IN DEEP SEDIMENTARY BASINS

    SciTech Connect (OSTI)

    Thaddeus S. Dyman; Troy Cook; Robert A. Crovelli; Allison A. Henry; Timothy C. Hester; Ronald C. Johnson; Michael D. Lewan; Vito F. Nuccio; James W. Schmoker; Dennis B. Riggin; Christopher J. Schenk

    2002-02-05

    From a geological perspective, deep natural gas resources are generally defined as resources occurring in reservoirs at or below 15,000 feet, whereas ultra-deep gas occurs below 25,000 feet. From an operational point of view, ''deep'' is often thought of in a relative sense based on the geologic and engineering knowledge of gas (and oil) resources in a particular area. Deep gas can be found in either conventionally-trapped or unconventional basin-center accumulations that are essentially large single fields having spatial dimensions often exceeding those of conventional fields. Exploration for deep conventional and unconventional basin-center natural gas resources deserves special attention because these resources are widespread and occur in diverse geologic environments. In 1995, the U.S. Geological Survey estimated that 939 TCF of technically recoverable natural gas remained to be discovered or was part of reserve appreciation from known fields in the onshore areas and State waters of the United. Of this USGS resource, nearly 114 trillion cubic feet (Tcf) of technically-recoverable gas remains to be discovered from deep sedimentary basins. Worldwide estimates of deep gas are also high. The U.S. Geological Survey World Petroleum Assessment 2000 Project recently estimated a world mean undiscovered conventional gas resource outside the U.S. of 844 Tcf below 4.5 km (about 15,000 feet). Less is known about the origins of deep gas than about the origins of gas at shallower depths because fewer wells have been drilled into the deeper portions of many basins. Some of the many factors contributing to the origin of deep gas include the thermal stability of methane, the role of water and non-hydrocarbon gases in natural gas generation, porosity loss with increasing thermal maturity, the kinetics of deep gas generation, thermal cracking of oil to gas, and source rock potential based on thermal maturity and kerogen type. Recent experimental simulations using laboratory pyrolysis methods have provided much information on the origins of deep gas. Technologic problems are one of the greatest challenges to deep drilling. Problems associated with overcoming hostile drilling environments (e.g. high temperatures and pressures, and acid gases such as CO{sub 2} and H{sub 2}S) for successful well completion, present the greatest obstacles to drilling, evaluating, and developing deep gas fields. Even though the overall success ratio for deep wells is about 50 percent, a lack of geological and geophysical information such as reservoir quality, trap development, and gas composition continues to be a major barrier to deep gas exploration. Results of recent finding-cost studies by depth interval for the onshore U.S. indicate that, on average, deep wells cost nearly 10 times more to drill than shallow wells, but well costs and gas recoveries vary widely among different gas plays in different basins. Based on an analysis of natural gas assessments, many topical areas hold significant promise for future exploration and development. One such area involves re-evaluating and assessing hypothetical unconventional basin-center gas plays. Poorly-understood basin-center gas plays could contain significant deep undiscovered technically-recoverable gas resources.

  1. Compressed natural gas and liquefied petroleum gas as alternative fuels

    SciTech Connect (OSTI)

    Moussavi, M.; Al-Turk, M. . Civil Engineering Dept.)

    1993-12-01

    The use of alternative fuels in the transportation industry has gained a strong support in recent years. In this paper an attempt was made to evaluate the use of liquefied petroleum gas (LPG) and compressed natural gas (NG) by 25 LPG-bifuel and 14 NG-bifuel vehicles that are operated by 33 transit systems throughout Nebraska. A set of performance measures such as average fuel efficiency in kilometers per liter, average fuel cost per kilometer, average oil consumption, and average operation and maintenance cost for alternatively fueled vehicles were calculated and compared with similar performance measures of gasoline powered vehicles. The results of the study showed that the average fuel efficiency of gasoline is greater than those of LPG and NG, and the average fuel costs (dollars per kilometer) for LPG and NG are smaller than those for gasoline for most of the vehicles under this study.

  2. Comparative study of some methods of determining from experimental data the parameters for the growth and decay functions and the adiabatic gas law 

    E-Print Network [OSTI]

    Chvatal, Leland A

    1961-01-01

    ?. n+1' If this gives improvement let b I ? bc ? Qb and proceed to calculate n+1 c 1. If b = bc ? 4 b doss not show improvement, let b I ? bn and proceed n+1' n+1 to study c 1. Then comparing the sum of the squares of the residuals n+1 using c = c... , c ) = G (B , c ) = 0 or (1) 2 Zi nBo co Z Xi = 0 i=1 i=I (2) Z ZiX Bo Z Xi ? co g X2i = 0 Wl i=1 i=1 For G(B? co) to be a minimum it cuff'ices (see p4 7, p. 161) to show that at (Bod cc)d (QB gc) ~Bz ~z & 0 where G 0 G Now ~Bz ? 2n, ~z ? 2 g X...

  3. Gas shielding apparatus

    DOE Patents [OSTI]

    Brandt, D.

    1984-06-05

    An apparatus for preventing oxidation by uniformly distributing inert shielding gas over the weld area of workpieces such as pipes being welded together. The apparatus comprises a chamber and a gas introduction element. The chamber has an annular top wall, an annular bottom wall, an inner side wall and an outer side wall connecting the top and bottom walls. One side wall is a screen and the other has a portion defining an orifice. The gas introduction element has a portion which encloses the orifice and can be one or more pipes. The gas introduction element is in fluid communication with the chamber and introduces inert shielding gas into the chamber. The inert gas leaves the chamber through the screen side wall and is dispersed evenly over the weld area.

  4. Gas shielding apparatus

    DOE Patents [OSTI]

    Brandt, D.

    1985-12-31

    An apparatus is disclosed for preventing oxidation by uniformly distributing inert shielding gas over the weld area of workpieces such as pipes being welded together. The apparatus comprises a chamber and a gas introduction element. The chamber has an annular top wall, an annular bottom wall, an inner side wall and an outer side wall connecting the top and bottom walls. One side wall is a screen and the other has a portion defining an orifice. The gas introduction element has a portion which encloses the orifice and can be one or more pipes. The gas introduction element is in fluid communication with the chamber and introduces inert shielding gas into the chamber. The inert gas leaves the chamber through the screen side wall and is dispersed evenly over the weld area. 3 figs.

  5. Gas shielding apparatus

    DOE Patents [OSTI]

    Brandt, Daniel (Los Alamos, NM)

    1985-01-01

    An apparatus for preventing oxidation by uniformly distributing inert shielding gas over the weld area of workpieces such as pipes being welded together. The apparatus comprises a chamber and a gas introduction element. The chamber has an annular top wall, an annular bottom wall, an inner side wall and an outer side wall connecting the top and bottom walls. One side wall is a screen and the other has a portion defining an orifice. The gas introduction element has a portion which encloses the orifice and can be one or more pipes. The gas introduction element is in fluid communication with the chamber and introduces inert shielding gas into the chamber. The inert gas leaves the chamber through the screen side wall and is dispersed evenly over the weld area.

  6. Field studies of beach cones as coastal erosion control/reversal devices for areas with significant oil and gas activities. Final report, February 24, 1992--September 18, 1995

    SciTech Connect (OSTI)

    Law, V.J.

    1995-09-18

    The primary objective of this project was to evaluate the utility of a device called the {open_quotes}beach cone{close_quotes} in combating coastal erosion. Seven initial sites were selected for testing beach cones in a variety of geometric configurations. Permits were obtained from the State of Louisiana and the U.S. Army Corps of Engineers to perform the work associated with this study. Six hundred beach cones were actually installed at six of the sites in late July and early August, 1992. Findings indicate that beach cones accreted significant amounts of materials along the beach of a barrier island, and they might have been instrumental in repairing an approximately 200 meter gap in the island. At the eighth installation the amount of accreted material was measured by surveys to be 2200 cubic meters (2900 cubic yards) in February of 1993, when the cones were found to have been completely covered by the material. At other test sites, accretion rates have been less dramatic but importantly, no significant additional erosion has occurred, which is a positive result. The cost of sediment accretion using beach cones was found to be about $13.72 per cubic yard, which would be much lower if the cones were mass produced (on the order of $3.00 per cubic yard). The survival of the cones through the fringes of Hurricane Andrew indicates that they can be anchored sufficiently to survive significant storms. The measurements of the cones settling rates indicate that this effect is not significant enough to hinder their effectiveness. A subcontract to Xavier University to assess the ecological quality of the experimental sites involved the study of the biogeochemical cycle of trace metals. The highest concentration of heavy metals were near a fishing camp while the lowest levels were in the beach sand of a barrier island. This suggests that the metals do not occur naturally in these areas, but have been placed in the sediments by man`s activities.

  7. Seismic Absorption and Modulus Measurements in Porous Rocks Under Fluid and Gas Flow-Physical and Chemical Effects: a Laboratory Study

    SciTech Connect (OSTI)

    Harmut Spetzler

    2005-11-28

    This paper describes the culmination of a research project in which we investigated the complex modulus change in partially fluid saturated porous rocks. The investigation started with simple flow experiments over ''clean'' and ''contaminated'' surfaces, progressed to moduli measurements on partially filled single cracks, to measurements in ''clean'' and ''contaminated'' porous rocks and finally to a feasibility study in the field. For the experiments with the simple geometries we were able to measure fundamental physical properties such as contact angles of the meniscus and time dependent forces required to get the meniscus moving and to keep it moving at various velocities. From the data thus gathered we were able to interpret the complex elastic moduli data we measured in the partially saturated single cracks. While the geometry in real rocks is too complex to make precise calculations we determined that we had indeed identified the mechanisms responsible for the changes in the moduli we had measured. Thus encouraged by the laboratory studies we embarked on a field experiment in the desert of Arizona. The field site allowed for controlled irrigation. Instrumentation for fluid sampling and water penetration were already in place. The porous loosely consolidated rocks at the site were not ideal for finding the effects of the attenuation mechanism we had identified in the lab, but for logistic and cost constraint reasons we chose to field test the idea at that site. Tiltmeters and seismometers were installed and operated nearly continuously for almost 3 years. The field was irrigated with water in the fall of 2003 and with water containing a biosurfactant in the fall of 2004. We have indications that the biosurfactant irrigation has had a notable effect on the tilt data.

  8. Thermodynamics of Chaplygin gas

    E-Print Network [OSTI]

    Yun Soo Myung

    2011-05-11

    We clarify thermodynamics of the Chaplygin gas by introducing the integrability condition. All thermal quantities are derived as functions of either volume or temperature. Importantly, we find a new general equation of state, describing the Chaplygin gas completely. We confirm that the Chaplygin gas could show a unified picture of dark matter and energy which cools down through the universe expansion without any critical point (phase transition).

  9. Pulsed gas laser

    DOE Patents [OSTI]

    Anderson, Louis W. (Madison, WI); Fitzsimmons, William A. (Madison, WI)

    1978-01-01

    A pulsed gas laser is constituted by Blumlein circuits wherein space metal plates function both as capacitors and transmission lines coupling high frequency oscillations to a gas filled laser tube. The tube itself is formed by spaced metal side walls which function as connections to the electrodes to provide for a high frequency, high voltage discharge in the tube to cause the gas to lase. Also shown is a spark gap switch having structural features permitting a long life.

  10. Valve for gas centrifuges

    DOE Patents [OSTI]

    Hahs, Charles A. (Oak Ridge, TN); Burbage, Charles H. (Oak Ridge, TN)

    1984-01-01

    The invention is a pneumatically operated valve assembly for simultaneously (1) closing gas-transfer lines connected to a gas centrifuge or the like and (2) establishing a recycle path between two of the lines so closed. The valve assembly is especially designed to be compact, fast-acting, reliable, and comparatively inexpensive. It provides large reductions in capital costs for gas-centrifuge cascades.

  11. Carbon sequestration in natural gas reservoirs: Enhanced gas recovery and natural gas storage

    E-Print Network [OSTI]

    Oldenburg, Curtis M.

    2003-01-01

    gas reservoirs for carbon sequestration and enhanced gasproduction and carbon sequestration, Society of Petroleumfeasibiilty of carbon sequestration with enhanced gas

  12. Modification of the EIC hydrogen sulfide abatement process to produce valuable by-products. Final report, May 4, 1981-May 4, 1982

    SciTech Connect (OSTI)

    Offenhartz, P. O'D.

    1982-06-01

    A program of analytical and experimental studies has been carried out to develop modifications of the CUPROSUL process for the desulfurization of geothermal steam. The objective of the program was to devise practical means to manipulate the chemistry of the process so that the consumption of raw materials could be controlled and a variety of valuable by-products could be produced. The process had been demonstrated, at one-tenth commercial scale, for steam of the Geysers' average composition in a configuration which resulted in essentially complete oxidation of sulfide to sulfate. The ability to control the extent of oxidation would increase process flexibility and extend its range of applicability to steams of widely varying composition. Preliminary market surveys of raw materials required for the process and by-products which could be produced indicated that controlling the oxidation of sulfides to produce elemental sulfur would probably be the preferred process option. Use of lime to treat sulfate-containing purge streams to produce by-product gypsum and ammonia for recycle or sale could also be justified for certain steam compositions. Recovery of ammonium sulfate alone from the purge stream would not normally be justified unless corecovery of other valuable by-products, such as boric acid, was possible at incremental cost. It was found that ferric sulfate was a highly effective, selective oxidant for the controlled oxidation of copper sulfide solids to produce elemental sulfur for sale and copper sulfate for recycle.

  13. Compressed Gas Cylinder Policy

    E-Print Network [OSTI]

    of pressure from a compressed gas cylinder and pose a serious threat to life and property. To minimize risk cylinders to and from a designated work are

  14. Gas venting system

    DOE Patents [OSTI]

    Khan, Amjad; Dreier, Ken Wayne; Moulthrop, Lawrence Clinton; White, Erik James

    2010-06-29

    A system to vent a moist gas stream is disclosed. The system includes an enclosure and an electrochemical cell disposed within the enclosure, the electrochemical cell productive of the moist gas stream. A first vent is in fluid communication with the electrochemical cell for venting the moist gas stream to an exterior of the enclosure, and a second vent is in fluid communication with an interior of the enclosure and in thermal communication with the first vent for discharging heated air to the exterior of the enclosure. At least a portion of the discharging heated air is for preventing freezing of the moist gas stream within the first vent.

  15. String Gas Baryogenesis

    E-Print Network [OSTI]

    G. L. Alberghi

    2010-02-19

    We describe a possible realization of the spontaneous baryogenesis mechanism in the context of extra-dimensional string cosmology and specifically in the string gas scenario.

  16. Natural gas annual 1997

    SciTech Connect (OSTI)

    1998-10-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs.

  17. Reversible Acid Gas Capture

    ScienceCinema (OSTI)

    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.

  18. Home Safety: Radon Gas 

    E-Print Network [OSTI]

    Shaw, Bryan W.; Denny, Monica L.

    1999-11-12

    Every home should be tested for radon, an invisible, odorless, radioactive gas that occurs naturally. This publication explains the health risks, testing methods, and mitigation and reduction techniques....

  19. Shale Gas Production

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

    Gas Production (Billion Cubic Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2009 2010 2011 2012...

  20. Infrared spectroscopic and modeling studies of H{sub 2}/CH{sub 4} microwave plasma gas phase from low to high pressure and power

    SciTech Connect (OSTI)

    Rond, C. Lombardi, G.; Gicquel, A.; Hamann, S.; Röpcke, J.; Wartel, M.

    2014-09-07

    InfraRed Tunable Diode Laser Absorption Spectroscopy technique has been implemented in a H{sub 2}/CH{sub 4} Micro-Wave (MW frequency f?=?2.45 GHz) plasma reactor dedicated to diamond deposition under high pressure and high power conditions. Parametric studies such as a function of MW power, pressure, and admixtures of methane have been carried out on a wide range of experimental conditions: the pressure up to 270 mbar and the MW power up to 4?kW. These conditions allow high purity Chemical Vapor Deposition diamond deposition at high growth rates. Line integrated absorption measurements have been performed in order to monitor hydrocarbon species, i.e., CH{sub 3}, CH{sub 4}, C{sub 2}H{sub 2}, C{sub 2}H{sub 4}, and C{sub 2}H{sub 6}. The densities of the stable detected species were found to vary in the range of 10{sup 12}–10{sup 17} molecules cm{sup ?3}, while the methyl radical CH{sub 3} (precursor of diamond growth under these conditions) measured into the plasma bulk was found up to 10{sup 14} molecules cm{sup ?3}. The experimental densities have been compared to those provided by 1D-radial thermochemical model for low power and low pressure conditions (up to 100 mbar/2?kW). These densities have been axially integrated. Experimental measurements under high pressure and power conditions confirm a strong increase of the degree of dissociation of the precursor, CH{sub 4}, associated to an increase of the C{sub 2}H{sub 2} density, the most abundant reaction product in the plasma.

  1. Graduate Opportunities in Atmospheric Modeling to Understand Greenhouse Gas Emissions

    E-Print Network [OSTI]

    Lin, John Chun-Han

    Graduate Opportunities in Atmospheric Modeling to Understand Greenhouse Gas Emissions University://www.atmos.utah.edu/) seeks multiple graduate students to study greenhouse gas emissions associated with urban development greenhouse gas emissions. Samples of guiding questions as part of the projects include: · What can explain

  2. Videos of Experiments from ORNL Gas Hydrate Research

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Gas hydrate research performed by the Environmental Sciences Division utilizes the ORNL Seafloor Process Simulator, the Parr Vessel, the Sapphire Cell, a fiber optic distributed sensing system, and Raman spectroscopy. The group studies carbon sequestration in the ocean, desalination, gas hydrates in the solar system, and nucleation and dissociation kinetics. The videos available at the gas hydrates website are very short clips from experiments.

  3. Gas & Galaxy Evolution ASP Conference Series, Vol. **VOLUME**, 2000

    E-Print Network [OSTI]

    Mihos, Chris

    Gas & Galaxy Evolution ASP Conference Series, Vol. **VOLUME**, 2000 J. E. Hibbard, M. P. Rupen and J. H. van Gorkom, eds. Gas/Star O#11;sets in Tidal Tails J. C. Mihos Case Western Reserve University, Cleveland, OH 44106 Abstract. We use numerical simulations to study the development of gas/star o#11;sets

  4. Knowledge-Intensive Work in the Oil and Gas Industry

    E-Print Network [OSTI]

    Knowledge-Intensive Work in the Oil and Gas Industry: A Case Study Thesis for the degree collaborative work practices within a large international oil and gas company (OGC). The work is founded empirical findings, we argue that in knowledge-intensive, interdisciplinary work such as oil and gas

  5. Energy Transitions: A Systems Approach Including Marcellus Shale Gas Development

    E-Print Network [OSTI]

    Angenent, Lars T.

    hydrocarbons such as natural gas. Whereas an over- all goal for the century is to achieve a sustainable system to increased use of unconventional gas resources as a result of declining supplies of conventional resources case study of energy transitions we focused on the case of un- conventional natural gas recovery from

  6. "Metal-oxide gas sensors have been around for

    E-Print Network [OSTI]

    Diebold, Ulrike

    Publishing "Metal-oxide gas sensors have been around for over 40 years, but only now we have: Surface Studies of Gas Sensing Metal Oxides 21 February 2007 1. Could you explain the significance of your article to the non-specialist? Metal oxide-gas sensors are practical devices used in a variety of every

  7. Laboratory scale studies of Pd/{gamma}-Al{sub 2}O{sub 3} sorbents for the removal of trace contaminants from coal-derived fuel gas at elevated temperatures

    SciTech Connect (OSTI)

    Rupp, Erik C.; Granite, Evan J.; Stanko, Dennis C.

    2013-01-01

    The Integrated Gasification Combined Cycle (IGCC) is a promising technology for the use of coal in a clean and efficient manner. In order to maintain the overall efficiency of the IGCC process, it is necessary to clean the fuel gas of contaminants (sulfur, trace compounds) at warm (150–540 °C) to hot (>540 °C) temperatures. Current technologies for trace contaminant (such as mercury) removal, primarily activated carbon based sorbents, begin to lose effectiveness above 100 °C, creating the need to develop sorbents effective at elevated temperatures. As trace elements are of particular environmental concern, previous work by this group has focused on the development of a Pd/?-Al{sub 2}O{sub 3} sorbent for Hg removal. This paper extends the research to Se (as hydrogen selenide, H{sub 2}Se), As (as arsine, AsH{sub 3}), and P (as phosphine, PH{sub 3}) which thermodynamic studies indicate are present as gaseous species under gasification conditions. Experiments performed under ambient conditions in He on 20 wt.% Pd/?-Al{sub 2}O{sub 3} indicate the sorbent can remove the target contaminants. Further work is performed using a 5 wt.% Pd/?-Al{sub 2}O{sub 3} sorbent in a simulated fuel gas (H{sub 2}, CO, CO{sub 2}, N{sub 2} and H{sub 2}S) in both single and multiple contaminant atmospheres to gauge sorbent performance characteristics. The impact of H{sub 2}O, Hg and temperature on sorbent performance is explored.

  8. Gas pump with movable gas pumping panels

    DOE Patents [OSTI]

    Osher, John E. (Alamo, CA)

    1984-01-01

    Apparatus for pumping gas continuously a plurality of articulated panels of getter material, each of which absorbs gases on one side while another of its sides is simultaneously reactivated in a zone isolated by the panels themselves from a working space being pumped.

  9. Oil and Gas Exploration

    E-Print Network [OSTI]

    Tingley, Joseph V.

    , oil and gas, and geothermal activities and accomplishments in Nevada: production statistics Products 23. Sloan dolomite quarry 24. Weiser gypsum quarry Oil Fields 1. Blackburn field 2. North WillowMetals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing Nevada

  10. GAS EXPLORATION Winter 2006 GasTIPS 5

    E-Print Network [OSTI]

    Rubin, Yoram

    GAS EXPLORATION Winter 2006 · GasTIPS 5 T he prediction of reservoir parameters such as gas or oil, but is particularly challenging in the case of gas exploration. Current seismic imaging technol- ogy cannot accurately discriminate between economic and non-eco- nomic concentrations of gas. This is primarily because

  11. Shale gas production: potential versus actual greenhouse gas emissions*

    E-Print Network [OSTI]

    Shale gas production: potential versus actual greenhouse gas emissions* Francis O Environ. Res. Lett. 7 (2012) 044030 (6pp) doi:10.1088/1748-9326/7/4/044030 Shale gas production: potential gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level

  12. Thermoacoustic natural gas liquefier

    SciTech Connect (OSTI)

    Swift, G.; Gardner, D.; Hayden, M.; Radebaugh, R.; Wollan, J.

    1996-07-01

    This is the final report of a two-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project sought to develop a natural-gas-powered natural-gas liquefier that has absolutely no moving parts and requires no electrical power. It should have high efficiency, remarkable reliability, and low cost. The thermoacoustic natural-gas liquefier (TANGL) is based on our recent invention of the first no-moving-parts cryogenic refrigerator. In short, our invention uses acoustic phenomena to produce refrigeration from heat, with no moving parts. The required apparatus comprises nothing more than heat exchangers and pipes, made of common materials, without exacting tolerances. Its initial experimental success in a small size lead us to propose a more ambitious application: large-energy liquefaction of natural gas, using combustion of natural gas as the energy source. TANGL was designed to be maintenance-free, inexpensive, portable, and environmentally benign.

  13. Cryogenic treatment of gas

    DOE Patents [OSTI]

    Bravo, Jose Luis (Houston, TX); Harvey, III, Albert Destrehan (Kingwood, TX); Vinegar, Harold J. (Bellaire, TX)

    2012-04-03

    Systems and methods of treating a gas stream are described. A method of treating a gas stream includes cryogenically separating a first gas stream to form a second gas stream and a third stream. The third stream is cryogenically contacted with a carbon dioxide stream to form a fourth and fifth stream. A majority of the second gas stream includes methane and/or molecular hydrogen. A majority of the third stream includes one or more carbon oxides, hydrocarbons having a carbon number of at least 2, one or more sulfur compounds, or mixtures thereof. A majority of the fourth stream includes one or more of the carbon oxides and hydrocarbons having a carbon number of at least 2. A majority of the fifth stream includes hydrocarbons having a carbon number of at least 3 and one or more of the sulfur compounds.

  14. Supersonic gas compressor

    DOE Patents [OSTI]

    Lawlor, Shawn P. (Bellevue, WA); Novaresi, Mark A. (San Diego, CA); Cornelius, Charles C. (Kirkland, WA)

    2007-11-13

    A gas compressor based on the use of a driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. In using this method to compress inlet gas, the supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdyanamic flow path formed between the rim of the rotor, the strakes, and a stationary external housing. Part load efficiency is enhanced by the use of a pre-swirl compressor, and using a bypass stream to bleed a portion of the intermediate pressure gas after passing through the pre-swirl compressor back to the inlet of the pre-swirl compressor. Inlet guide vanes to the compression ramp enhance overall efficiency.

  15. Physical Properties of Gas Hydrates: A Review

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

    Gabitto, Jorge F.; Tsouris, Costas

    2010-01-01

    Methane gas hydrates in sediments have been studied by several investigators as a possible future energy resource. Recent hydrate reserves have been estimated at approximately 10 16 ? m 3 of methane gas worldwide at standard temperature and pressure conditions. In situ dissociation of natural gas hydrate is necessary in order to commercially exploit the resource from the natural-gas-hydrate-bearing sediment. The presence of gas hydrates in sediments dramatically alters some of the normal physical properties of the sediment. These changes can be detectedmore »by field measurements and by down-hole logs. An understanding of the physical properties of hydrate-bearing sediments is necessary for interpretation of geophysical data collected in field settings, borehole, and slope stability analyses; reservoir simulation; and production models. This work reviews information available in literature related to the physical properties of sediments containing gas hydrates. A brief review of the physical properties of bulk gas hydrates is included. Detection methods, morphology, and relevant physical properties of gas-hydrate-bearing sediments are also discussed. « less

  16. Natural Gas Prices Forecast Comparison--AEO vs. Natural Gas Markets

    E-Print Network [OSTI]

    Wong-Parodi, Gabrielle; Lekov, Alex; Dale, Larry

    2005-01-01

    Natural Gas Prices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Natural Gas Prices . . . . . . . . . . . . . . . . . . . . . . . . . .versus AEO and Henry Hub Natural Gas Prices . . . . . .

  17. Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal...

    Open Energy Info (EERE)

    Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal System- A Case Study Of The Geysers Geothermal Field, Usa Jump to: navigation, search OpenEI Reference...

  18. Sandia Energy - More California Gas Stations Can Provide Hydrogen...

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

    More California Gas Stations Can Provide Hydrogen than Previously Thought, Sandia Study Says Home Infrastructure Security Energy Transportation Energy CRF Facilities News News &...

  19. Shale gas production: potential versus actual greenhouse gas emissions

    E-Print Network [OSTI]

    O’Sullivan, Francis Martin

    Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during ...

  20. Baltimore Gas & Electric Company (Gas)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    The Baltimore Gas & Electric Company (BGE) offers Natural Gas Connection program to residential customers to switch from electric to natural gas for heat. The program waives connection charge (...