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Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Oil and Gas Supply Module (OGSM), 2009, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Dana Van-Wagener

2009-07-07T23:59:59.000Z

2

Oil and Gas Supply Module (OGSM), 2007, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2007-08-14T23:59:59.000Z

3

Oil and Gas Supply Module (OGSM), 2002, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2002-03-01T23:59:59.000Z

4

Oil and Gas Supply Module (OGSM), 1998, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

1998-01-01T23:59:59.000Z

5

Oil and Gas Supply Module (OGSM), 1995, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

1996-01-01T23:59:59.000Z

6

Oil and Gas Supply Module (OGSM), 2008, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Dana Van-Wagener

2008-10-14T23:59:59.000Z

7

Oil and Gas Supply Module (OGSM), 2006, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2006-03-01T23:59:59.000Z

8

Oil and Gas Supply Module (OGSM), 1999, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

1999-02-01T23:59:59.000Z

9

Oil and Gas Supply Module (OGSM), 1997, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

1997-01-01T23:59:59.000Z

10

Oil and Gas Supply Module (OGSM), 2000, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2000-01-01T23:59:59.000Z

11

Oil and Gas Supply Module (OGSM), 2004, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2004-03-01T23:59:59.000Z

12

Oil and Gas Supply Module (OGSM), 2001, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2001-01-01T23:59:59.000Z

13

Oil and Gas Supply Module (OGSM), 2005, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2005-05-01T23:59:59.000Z

14

Natural Gas Supply in Denmark -A Model of Natural Gas Transmission and the  

E-Print Network (OSTI)

Natural Gas Supply in Denmark - A Model of Natural Gas Transmission and the Liberalized Gas Market of the markets of natural gas and electricity and the existence of an abundance of de-centralized combined heat and power generators of which most are natural gas fired, leads to the natural assumption that the future

15

Oil and Gas Supply Module  

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

Oil and Gas Supply Module Oil and Gas Supply Module This page inTenTionally lefT blank 119 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2013 Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze crude oil and natural gas exploration and development on a regional basis (Figure 8). The OGSM is organized into 4 submodules: Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule[1], and Alaska Oil and Gas Supply Submodule. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2011), (Washington, DC, 2011). The OGSM provides

16

Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

1 1 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2012 Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze crude oil and natural gas exploration and development on a regional basis (Figure 8). The OGSM is organized into 4 submodules: Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule[1], and Alaska Oil and Gas Supply Submodule. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2011), (Washington, DC, 2011). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum

17

Impacts of a gas cartel on the European gas market – selected results from the supply model EUGAS  

E-Print Network (OSTI)

b, * This article introduces the simulation model EUGAS which allows a quantitative analysis of the long-term natural gas supply of Europe. Based on chosen parameter specifications, the simulation shows that no discernible physical gas scarcity at least for the next 20-30 years will occur in Europe. Significant investments in new production and transport facilities will be necessary during the next decades. Diversification of supplies and political considerations will have a significant impact on the development of new natural gas resources. Possibly, a new built gas cartel similar to the OPEC may modify the gas supply pattern of Europe.

J. Perner A; A. Seeliger

2003-01-01T23:59:59.000Z

18

Oil and Gas Supply Module (OGSM), 2003 Vol. I, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2003-04-01T23:59:59.000Z

19

Oil and Gas Supply Module (OGSM), 2003 Vol. II, Model Documentation  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Information Center

2003-04-01T23:59:59.000Z

20

Oil and Gas Supply Module  

Annual Energy Outlook 2012 (EIA)

Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply Submodule, and Alaska Oil and Gas Supply Submodule. A detailed description of...

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

States, acquire natural gas from foreign producers for resale States, acquire natural gas from foreign producers for resale in the United States, or sell U.S. gas to foreign consumers. OGSM encompasses domestic crude oil and natural gas supply by both conventional and nonconventional recovery techniques. Nonconventional recovery includes unconventional gas recovery from low permeability formations of sandstone and shale, and coalbeds. Foreign gas transactions may occur via either pipeline (Canada or Mexico) or transport ships as liquefied natural gas (LNG). Energy Information Administration/Assumptions to the Annual Energy Outlook 2006 89 Figure 7. Oil and Gas Supply Model Regions Source: Energy Information Administration, Office of Integrated Analysis and Forecasting. Report #:DOE/EIA-0554(2006) Release date: March 2006

22

The National Energy Modeling System: An Overview 1998 - Oil and Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

OIL AND GAS SUPPLY MODULE OIL AND GAS SUPPLY MODULE blueball.gif (205 bytes) Lower 48 Onshore and Shallow Offshore Supply Submodule blueball.gif (205 bytes) Deep Water Offshore Supply Submodule blueball.gif (205 bytes) Alaska Oil and Gas Submodule blueball.gif (205 bytes) Enhanced Oil Recovery Submodule blueball.gif (205 bytes) Foreign Natural Gas Supply Submodule The oil and gas supply module (OGSM) consists of a series of process submodules that project the availability of: Domestic crude oil production and dry natural gas production from onshore, offshore, and Alaskan reservoirs Imported pipeline-quality gas from Mexico and Canada Imported liquefied natural gas. The OGSM regions are shown in Figure 12. The driving assumption of the OGSM is that domestic oil and gas exploration and development are undertaken if the discounted present value of the

23

Supplemental Gas Supplies  

Gasoline and Diesel Fuel Update (EIA)

. . Supplemental Gas Supplies by State, 1996 (Million Cubic Feet) Table State Synthetic Natural Gas Propane- Air Refinery Gas Biomass Gas Other Total Alabama ...................... 0 18 0 0 0 18 Colorado...................... 0 344 0 0 a 6,443 6,787 Connecticut ................. 0 48 0 0 0 48 Delaware ..................... 0 1 0 0 0 1 Georgia........................ 0 94 0 0 0 94 Hawaii.......................... 2,761 0 0 0 0 2,761 Illinois .......................... 0 488 3,423 0 0 3,912 Indiana......................... 0 539 0 0 b 2,655 3,194 Iowa............................. 0 301 0 0 0 301 Kentucky...................... 0 45 0 0 0 45 Maine........................... 0 61 0 0 0 61 Maryland...................... 0 882 0 0 0 882 Massachusetts ............ 0 426 0 0 0 426 Michigan ...................... 0 0 0 0 c 21,848 21,848 Minnesota.................... 0 709 0 0 0 709 Missouri

24

The National Energy Modeling System: An Overview 2000 - Oil and Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

oil and gas supply module (OGSM) consists of a series of process submodules that project the availability of: oil and gas supply module (OGSM) consists of a series of process submodules that project the availability of: Domestic crude oil production and dry natural gas production from onshore, offshore, and Alaskan reservoirs Imported pipeline-quality gas from Mexico and Canada Imported liquefied natural gas. The OGSM regions are shown in Figure 12. Figure 12. Oil and Gas Supply Module Regions The driving assumption of OGSM is that domestic oil and gas exploration and development are undertaken if the discounted present value of the recovered resources at least covers the present value of taxes and the cost of capital, exploration, development, and production. In contrast, international gas trade is determined in part by scenario-dependent, noneconomic factors. Crude oil is transported to refineries, which are simulated in the petroleum market module, for conversion and blending into refined petroleum products. The individual submodules of the oil and gas supply module are solved independently, with feedbacks achieved through NEMS solution iterations (Figure 13).

25

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

NANGAS (North American Natural Gas Analysis System), E2020 (Modeling Forum (EMF). 2003. Natural Gas, Fuel Diversity and2003. Increasing U.S. Natural Gas Supplies: A Discussion

Wiser, Ryan

2005-01-01T23:59:59.000Z

26

Oil and Gas Supply Module (OGSM)  

Reports and Publications (EIA)

Defines the objectives of the Oil and Gas Supply Model (OGSM), to describe the model's basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public.

Dana Van-Wagener

2013-07-05T23:59:59.000Z

27

Natural Gas Supply Conference - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Natural Gas Supply Conference. William Trapmann Energy Information Administration. American Public Gas Association January 30 & 31, 2001

28

Natural Gas Supply SBIR Program  

SciTech Connect

The Small Business Innovation Research (SBIR) program was created in 1982 by Public Law 97-219 and reauthorized in 1992 until the year 2000 by Public Law 102-564. The purposes of the new law are to (1) expand and improve the SBIR program, 2) emphasize the program`s goal of increasing private sector commercialization of technology developed through Federal R&D, (3) increase small business participation in Federal R&D, and (4) improve the Federal Government`s dissemination of information concerning the SBIR program. DOE`s SBIR pro-ram has two features that are unique. In the 1995 DOE SBIR solicitation, the DOE Fossil Energy topics were: environmental technology for natural gas, oil, and coal; advanced recovery of oil; natural gas supply; natural gas utilization; advanced coal-based power systems; and advanced fossil fuels research. The subtopics for this solicitation`s Natural Gas Supply topic are (1) drilling, completion, and stimulation; (2) low-permeability Formations; (3) delivery and storage; and (4) natural gas upgrading.

Shoemaker, H.D.; Gwilliam, W.J.

1995-07-01T23:59:59.000Z

29

Modelling the demand and supply of natural gas from Cyprus and Israel.  

E-Print Network (OSTI)

?? The use of natural gas as a primary energy source has increased over time and is expected to increase even further in the near… (more)

Taliotis, Constantinos

2012-01-01T23:59:59.000Z

30

EIA - Assumptions to the Annual Energy Outlook 2010 - Oil and Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module Assumptions to the Annual Energy Outlook 2010 Oil and Gas Supply Module Figure 8. Natural Gas Transmission and Distribution Model Regions. The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas natural gas exploration and development on a regional basis (Figure 7). The OGSM is organized into 4 submodules: Onshore Lower 48 Oil and Gas Supply Submodule, Offshore Oil and Gas Supply Submodule, Oil Shale Supply submodule, and Alaska Oil and Gas Supply Submodule. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2010), (Washington, DC, 2010). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural

31

NETL: Oil and Natural Gas Supply  

NLE Websites -- All DOE Office Websites (Extended Search)

Technologies Oil and Natural Gas Supply Water Treatment System Cleans Marcellus Shale Wastewater Additional Information Onsite operations and water quality testing of the...

32

Total Supplemental Supply of Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Product: Total Supplemental Supply Synthetic Propane-Air Refinery Gas Biomass Other Period: Monthly Annual Download Series History Download Series History Definitions, Sources &...

33

Documentation of the Oil and Gas Supply Module (OGSM)  

Science Conference Proceedings (OSTI)

The purpose of this report is to define the objectives of the Oil and Gas Supply Model (OGSM), to describe the model`s basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public. Projected production estimates of US crude oil and natural gas are based on supply functions generated endogenously within National Energy Modeling System (NEMS) by the OGSM. OGSM encompasses domestic crude oil and natural gas supply by both conventional and nonconventional recovery techniques. Nonconventional recovery includes enhanced oil recovery (EOR), and unconventional gas recovery (UGR) from tight gas formations, Devonian/Antrim shale and coalbeds. Crude oil and natural gas projections are further disaggregated by geographic region. OGSM projects US domestic oil and gas supply for six Lower 48 onshore regions, three offshore regions, and Alaska. The general methodology relies on forecasted profitability to determine exploratory and developmental drilling levels for each region and fuel type. These projected drilling levels translate into reserve additions, as well as a modification of the production capacity for each region. OGSM also represents foreign trade in natural gas, imports and exports by entry region. Foreign gas trade may occur via either pipeline (Canada or Mexico), or via transport ships as liquefied natural gas (LNG). These import supply functions are critical elements of any market modeling effort.

NONE

1998-01-01T23:59:59.000Z

34

EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins...  

Annual Energy Outlook 2012 (EIA)

with selected updates U.S. Natural Gas Supply Basins Relative to Major Natural Gas Pipeline Transportation Corridors, 2008 U.S. Natural Gas Transporation Corridors out of Major...

35

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

imbalance between natural gas supply and demand will clearlywell the shape of the natural gas supply curve (measured byprice elasticity of natural gas supply, or the percentage

Wiser, Ryan

2005-01-01T23:59:59.000Z

36

Analysis of Restricted Natural Gas Supply Cases  

Reports and Publications (EIA)

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.

James Kendell

2004-03-01T23:59:59.000Z

37

The 'Supply-of-Storage' for Natural Gas in California  

E-Print Network (OSTI)

Commission. (2002). “Natural Gas Supply and Infrastructure013 “THE ‘SUPPLY-OF-STORAGE’ FOR NATURAL GAS IN CALIFORNIA”THE “SUPPLY-OF-STORAGE” FOR NATURAL GAS IN CALIFORNIA Rocío

Uria, Rocio; Williams, Jeffrey

2005-01-01T23:59:59.000Z

38

natural gas supply | OpenEI  

Open Energy Info (EERE)

natural gas supply natural gas supply Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 13, and contains only the reference case. The dataset uses gigawatts. The data is broken down into production, net imports, consumption by sector and price. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO disposition EIA natural gas supply prices Data application/vnd.ms-excel icon AEO2011: Natural Gas Supply, Disposition, and Prices - Reference Case (xls, 91.8 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL)

39

EIA-Assumptions to the Annual Energy Outlook - Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module Assumptions to the Annual Energy Outlook 2007 Oil and Gas Supply Module Figure 7. Oil and Gas Supply Model Regions. Need help, contact the National Energy Information Center at 202-586-8800. The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas supply on a regional basis (Figure 7). A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2006), (Washington, DC, 2006). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum Market Module. The OGSM simulates the activity of numerous firms that produce oil and natural

40

Documentation of the Oil and Gas Supply Module (OGSM)  

Science Conference Proceedings (OSTI)

The purpose of this report is to define the objectives of the Oil and Gas Supply Model (OGSM), to describe the model`s basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public. It is prepared in accordance with the Energy Information Administration`s (EIA) legal obligation to provide adequate documentation in support of its statistical and forecast reports (Public Law 93-275, Section 57(b)(2)). Projected production estimates of U.S. crude oil and natural gas are based on supply functions generated endogenously within National Energy Modeling System (NEMS) by the OGSM. OGSM encompasses domestic crude oil and natural gas supply by both conventional and nonconventional recovery techniques. Nonconventional recovery includes enhanced oil recovery (EOR), and unconventional gas recovery (UGR) from tight gas formations, Devonian shale and coalbeds. Crude oil and natural gas projections are further disaggregated by geographic region. OGSM projects U.S. domestic oil and gas supply for six Lower 48 onshore regions, three offshore regions, and Alaska. The general methodology relies on forecasted drilling expenditures and average drilling costs to determine exploratory and developmental drilling levels for each region and fuel type. These projected drilling levels translate into reserve additions, as well as a modification of the production capacity for each region. OGSM also represents foreign trade in natural gas, imports and exports by entry region. Foreign gas trade may occur via either pipeline (Canada or Mexico), or via transport ships as liquefied natural gas (LNG). These import supply functions are critical elements of any market modeling effort.

NONE

1995-10-24T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Future of natural gas supply  

E-Print Network (OSTI)

This paper provides many data for the web reader and only some graphs will be presented at the conference.-World-production of natural gas (NG) Reliable data s very difficult to get, as very often the data does not specify if it is gross or gross minus reinjected or marketed, wet or dry values. The loss is usually hidden. Nonhydrocarbons gases are important in some fields. Production data varies from sources for what is called marketed World Production marketed 2001 2002

Jean Laherrere

2003-01-01T23:59:59.000Z

42

Assumptions to the Annual Energy Outlook 2002 - Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas supply. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2002), (Washington, DC, January 2002). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum Market Module. The OGSM simulates the activity of numerous firms that produce oil and natural gas from domestic fields throughout the United States, acquire natural gas from foreign producers for resale in the United States, or sell U.S. gas to foreign consumers. OGSM encompasses domestic crude oil and natural gas supply by both

43

Assumptions to the Annual Energy Outlook 2001 - Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas supply. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2001), (Washington, DC, January 2001). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum Market Module. The OGSM simulates the activity of numerous firms that produce oil and natural gas from domestic fields throughout the United States, acquire natural gas from foreign producers for resale in the United States, or sell U.S. gas to foreign consumers. OGSM encompasses domestic crude oil and natural gas supply by both

44

Gas supplies of interstate natural gas pipeline companies, 1986  

SciTech Connect

The publication provides information on the total reserves, production, and deliverability capabilities of the 90 interstate pipeline companies. The gas supplies of interstate pipeline companies consist of the certificated, dedicated, recoverable, salable natural gas available from domestic in-the-ground reserves; gas purchased under contracts with other interstate pipeline companies; domestically produced coal gas, liquefied natural gas (LNG), and synthetic natural gas (SNG); and imported natural gas and LNG. The domestic in-the-ground reserves consist of company-owned reserves including natural gas in underground storage, reserves dedicated to or warranted under contracts with independent producers, and supplemental or short-term supplies purchased from independent producers and intrastate pipeline companies. To avoid duplicate reporting of domestic in-the-ground reserves, the volumes of gas under contract agreement between jurisdictional pipelines have been excluded in summarizing State and national reserves. Volumes contracted under agreements with foreign suppliers include pipeline imports from Canada and Mexico. 7 figs., 18 tabs.

Not Available

1987-12-18T23:59:59.000Z

45

EIA - Assumptions to the Annual Energy Outlook 2008 - Oil and Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module Assumptions to the Annual Energy Outlook 2008 Oil and Gas Supply Module Figure 7. Oil and Gas Supply Module. Need help, contact the National Energy Information Center at 202-586-8800. The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas supply on a regional basis (Figure 7). A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(2007), (Washington, DC, 2007). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum Market Module. The OGSM simulates the activity of numerous firms that produce oil and natural

46

Method and apparatus for reliable gas supply  

SciTech Connect

A method is described for supplying gas to a receiving point at a flowrate at least equal to a design gas usage rate comprising: (A) passing liquid from a liquid reservoir into an atmospheric vaporizer having a rated capacity at least equal to the design gas usage rate; (B) passing the liquid through the atmospheric vaporizer while heating the liquid by indirect heat exchange with ambient air to produce heated fluid; (C) passing substantially all of the heated fluid from the atmospheric vaporizer into a powered heat exchanger having a rated capacity at least equal to the design gas usage rate; (D) passing the heated fluid through the powered heat exchanger while heating the heated fluid by indirect heat exchange with hot fluid to produce product gas; and (E) passing product gas to the receiving point at a flowrate at least equal to the design gas usage rate.

Borcuch, J.P.; Thompson, D.R.

1989-04-18T23:59:59.000Z

47

The 'Supply-of-Storage' for Natural Gas in California  

E-Print Network (OSTI)

the Hedging Effectiveness of Natural Gas Futures. ” EnergyCommission. (2002). “Natural Gas Supply and Infrastructureand Price Dynamics in Natural Gas City Gate Markets. ”

Uria, Rocio; Williams, Jeffrey

2005-01-01T23:59:59.000Z

48

BC gas takes new approach to gas supply optimization  

Science Conference Proceedings (OSTI)

Wide-ranging changes have taken place in the US and Canada since the mid-1980s in the way that local gas distribution utilities and large industrial customers contract for their gas supplies. This paper reports that these changes have been brought about by open-access policies, the intent of which was to allow customers more latitude to make their gas purchase and transportation arrangements and to improve the access of shippers to available gas transmission capacity. The effects of the new open-access regime have been profound on both sides of the border. More than 70% of North American gas supplies are now sold under unbundled arrangements in which gas supply is contracted under separate commodity and transportation agreements. For local distribution utilities, the numbers of potential supply options have become extremely large. Analysis of these options has become increasingly complex with the need to take account of complicated contract provisions, a wider range of storage options and swap arrangements with other utilities, opportunities for some customers to purchase gas directly and uncertainty about future demand, prices and supplier reliability.

Cawdery, J.; Swoveland, C. (Quantalytics Inc., Vancouver, British Columbia (CA))

1992-04-01T23:59:59.000Z

49

Documentation of the oil and gas supply module (OGSM)  

Science Conference Proceedings (OSTI)

The purpose of this report is to define the objectives of the Oil and Gas Supply Model (OGSK, to describe the model`s basic approach, and to provide detail on how the model works. This report is intended as a reference document for model analysts, users, and the public. It is prepared in accordance with the Energy Information Administration`s (EIA) legal obligation to provide adequate documentation in support of its statistical and forecast reports (Public Law 93-275, Section 57(b)(2). OGSM is a comprehensive framework with which to analyze oil and gas supply potential and related issues. Its primary function is to produce forecast of crude oil, natural gas production, and natural gas imports and exports in response to price data received endogenously (within NEMS) from the Natural Gas Transmission and Distribution Model (NGTDM) and the Petroleum Market Model (PMM). To accomplish this task, OGSM does not provide production forecasts per se, but rather parameteres for short-term domestic oil and gas production functions and natural gas import functions that reside in PMM and NGTDM.

NONE

1996-01-01T23:59:59.000Z

50

Thai gas demand seen outstripping supply  

SciTech Connect

Thailand's demand for gas will outstrip supplies in the late 1990s as rapid economic growth continues. Gas will be a cornerstone for Thai energy policy throughout the growth, although sources in neighboring countries need development. Thai gas production will rise 25% from 1992 to average 1 bcfd by 1995. Including production from new discoveries, production could rise to 1.5 bcfd by 2000, up almost 90% from the 1992 level. Increased gas flow output in the mid-1990s will be due largely to development of Gulf of Thailand fields. By 1998, production from Gulf of Thailand fields will not be enough to offset the decline in today's fields. Thailand will need to import more than 1 bcfd by 2005 in the absence of future discoveries in the country. The paper discusses new pipelines and imports.

1993-05-03T23:59:59.000Z

51

Gas supplies of interstate natural gas pipeline companies 1985  

SciTech Connect

This publication provides information on the total reserves, production, and deliverability capabilities of the 91 interstate pipeline companies. The gas supplies of interstate pipeline companies consist of the certificated, dedicated, recoverable, salable natural gas available from domestic in-the-ground reserves; gas purchased under contracts with other interstate pipeline companies; domestically produced coal gas, liquefied natural gas (LNG), and synthetic natural gas (SNG); and imported natural gas and LNG. The domestic in-the-ground reserves consist of company owned reserves including natural gas in underground storage, reserves dedicated to or warranted under contracts with independent producers, and supplemental or short-term supplies purchased from independent producers and intrastate pipeline companies. To avoid duplicate reporting of domestic in-the-ground reserves, the volumes of gas under contract agreement between jurisdictional pipelines have been excluded in summarizing state and national reserves. Volumes contracted under agreements with foreign suppliers include pipeline imports from Canada and Mexico and LNG from Algeria. 7 figs., 18 tabs.

Not Available

1986-11-14T23:59:59.000Z

52

Gas supplies of interstate natural gas pipeline companies, 1984  

SciTech Connect

This publication provides information on the total reserves, production, and deliverability capabilities of 89 interstate pipeline companies. The gas supplies of interstate pipeline companies consist of the certificated, dedicated, recoverable, salable natural gas available from domestic in-the-ground reserves; gas purchased under contracts with other interstate pipeline companies; domestically produced coal gas, liquefied natural gas (LNG), and synthetic natural gas (SNG); and imported natural gas and LNG. The domestic in-the-ground reserves consist of company-owned reserves including natural gas in underground storage, reserves dedicated to or warranted under contracts with independent producers, and supplemental or short-term supplies purchased from independent producers and intrastate pipeline companies. To avoid duplicate reporting of domestic in-the-ground reserves, the volumes of gas under contract agreement between jurisdictional pipelines have been excluded in summarizing state and national reserves. Volumes contracted under agreements with foreign suppliers include pipeline imports from Canada and Mexico and LNG from Algeria. 8 figs., 18 tabs.

Price, R.

1985-12-04T23:59:59.000Z

53

Analysis of natural gas supply strategies at Fort Drum  

SciTech Connect

This analysis investigates strategies for Fort Drum to acquire a reliable natural gas supply while reducing its gas supply costs. The purpose of this study is to recommend an optimal supply mix based on the life-cycle costs of each strategy analyzed. In particular, this study is intended to provide initial guidance as to whether or not the building and operating of a propane-air mixing station is a feasible alternative to the current gas acquisition strategy. The analysis proceeded by defining the components of supply (gas purchase, gas transport, supplemental fuel supply); identifying alternative options for each supply component; constructing gas supply strategies from different combinations of the options available for each supply component and calculating the life-cycle costs of each supply strategy under a set of different scenarios reflecting the uncertainty of future events.

Stucky, D.J.; Shankle, S.A.; Anderson, D.M.

1992-07-01T23:59:59.000Z

54

Restricted Natural Gas Supply Case (released in AEO2005)  

Reports and Publications (EIA)

The restricted natural gas supply case provides an analysis of the energy-economic implications of a scenario in which future gas supply is significantly more constrained than assumed in the reference case. Future natural gas supply conditions could be constrained because of problems with the construction and operation of large new energy projects, and because the future rate of technological progress could be significantly lower than the historical rate. Although the restricted natural gas supply case represents a plausible set of constraints on future natural gas supply, it is not intended to represent what is likely to happen in the future.

Information Center

2005-02-01T23:59:59.000Z

55

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Natural Gas Prices Through Electricity Supply Diversification Testimony Prepared for a Hearing on Power Generation

Wiser, Ryan

2005-01-01T23:59:59.000Z

56

ME EET Seminar: Modeling of Supply Chain Energy Efficiency and...  

NLE Websites -- All DOE Office Websites (Extended Search)

ME EET Seminar: Modeling of Supply Chain Energy Efficiency and Greenhouse Gas Mitigation Potentials Speaker(s): Eric Masanet Date: March 17, 2010 - 1:30pm Location: Campus: 3110...

57

The growing world LP-gas supply  

Science Conference Proceedings (OSTI)

The possible range of future (LPG) export availabilities is huge, but actual production levels depend on factors, many of which are beyond our direct control - world demand for crude oil and gas, developments in technology, and the price of both energy in general and LPG specifically. Although these factors limit some of the potential developments, a substantial increase in LPG supply is certain, and this is likely to depress its price relative to other products. Over the last few years, a dramatic expansion has taken place in the industry. From 1980 to 1987, non-Communist world production of LPG increased by close to 35%, to a total of 115 million tonnes. If this is set against the general energy scene, LPG represented 3.7% of crude oil production by weight in 1980, rising to 5.4% in 1987. This growth reflects rise in consciousness around the world of the value of the product. LPG is no longer regarded as a byproduct, which is flared or disposed of at low value, but increasingly as a co-product, and much of the growth in production has been due to the installation of tailored recovery systems. LPG markets historically developed around sources of supply, constrained by the costs of transportation. The major exceptions, of course, were the Middle East, the large exporter, and Japan, the large importer.

Hoare, M.C.

1988-11-01T23:59:59.000Z

58

Supply Chain Greenhouse Gas Management Strategy for Ford Motor Company.  

E-Print Network (OSTI)

??The processing of raw materials and the manufacturing of components for the automotive supply chain results in significant life cycle energy consumption and greenhouse gas… (more)

Bosch, Christina

2011-01-01T23:59:59.000Z

59

Cost Curves for Gas Supply Security: The Case of Bulgaria  

E-Print Network (OSTI)

.6% Natural gas* 5.7% Liquid fuels 1.2% Notes and sources: SEWRC, December 2008; * cogeneration 6 3.2 Bulgaria is unable to cope with gas supply disruptions Bulgaria was unable to cope with the gas supply disruption of January 2009... of an explanation. First, the Bulgarian gas industry is organised as a de-facto monopoly, with Bulgargaz part of the 100% government-owned Bulgarian Energy Holding. Accordingly, the company is very well...

Silve, Florent; Noël, Pierre

60

Natural Gas Supply Vulnerability in Europe.  

E-Print Network (OSTI)

??Demand for natural gas has been increasing steadily the past few years. Most European countries depend heavily on natural gas imports due to insufficient gas… (more)

Gungor, Bekir

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Natural Gas Prices Through Electricity Supply Diversification Testimony Prepared for a Hearing on Power Generation Resource Incentives &

Wiser, Ryan

2005-01-01T23:59:59.000Z

62

U.S. Natural Gas Supply Equation and Price Envelope  

Science Conference Proceedings (OSTI)

This report presents a composite assessment of U.S. natural gas supply and demand balance for the time period 2005 to 2011. The key elements in this outlook, or equation, are changes in supply (rapidly increasing LNG [liquefied natural gas] imports, modest U.S. supply growth, and declining imports from Canada) and in demand (notably, growth for electric power generation and small increases in other sectors). Uncertainties concerning each component are identified and analyzed. While LNG will account for t...

2007-11-05T23:59:59.000Z

63

Assumptions to the Annual Energy Outlook 1999 - Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

oil.gif (4836 bytes) oil.gif (4836 bytes) The NEMS Oil and Gas Supply Module (OGSM) constitutes a comprehensive framework with which to analyze oil and gas supply. A detailed description of the OGSM is provided in the EIA publication, Model Documentation Report: The Oil and Gas Supply Module (OGSM), DOE/EIA-M063(99), (Washington, DC, January 1999). The OGSM provides crude oil and natural gas short-term supply parameters to both the Natural Gas Transmission and Distribution Module and the Petroleum Market Module. The OGSM simulates the activity of numerous firms that produce oil and natural gas from domestic fields throughout the United States, acquire natural gas from foreign producers for resale in the United States, or sell U.S. gas to foreign consumers. OGSM encompasses domestic crude oil and natural gas supply by both conventional and nonconventional recovery techniques. Nonconventional recovery includes enhanced oil recovery and unconventional gas recovery from tight gas formations, gas shale, and coalbeds. Foreign gas transactions may occur via either pipeline (Canada or Mexico) or transport ships as liquefied natural gas (LNG).

64

Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Favorable Supplies, Costs, Environmental Profile for Natural Gas Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study August 23, 2012 - 1:00pm Addthis Washington, DC - The nation's large resource base of natural gas can be used for cost-effective power generation, with environmental burdens coming primarily from fuel combustion, not resource extraction, according to a new Department of Energy (DOE) study. The report, Role of Alternative Energy Sources: Natural Gas Power Technology Assessment, was prepared by the Office of Fossil Energy's National Energy Technology Laboratory (NETL). Analysts focused on seven criteria to evaluate the role of natural gas in the U.S. energy supply

65

Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Favorable Supplies, Costs, Environmental Profile for Natural Gas Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study Favorable Supplies, Costs, Environmental Profile for Natural Gas Revealed in New Department of Energy Study August 23, 2012 - 1:00pm Addthis Washington, DC - The nation's large resource base of natural gas can be used for cost-effective power generation, with environmental burdens coming primarily from fuel combustion, not resource extraction, according to a new Department of Energy (DOE) study. The report, Role of Alternative Energy Sources: Natural Gas Power Technology Assessment, was prepared by the Office of Fossil Energy's National Energy Technology Laboratory (NETL). Analysts focused on seven criteria to evaluate the role of natural gas in the U.S. energy supply

66

Natural Gas Consumption (Annual Supply & Disposition)  

Gasoline and Diesel Fuel Update (EIA)

New Reservoir Discoveries in Old Fields Estimated Production Number of Producing Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil...

67

Natural Gas Consumption (Annual Supply & Disposition)  

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

Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

68

Natural Gas Consumption (Annual Supply & Disposition)  

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

Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

69

Investigation of air supply conditions in the room of a B11type gas appliance  

Science Conference Proceedings (OSTI)

In Hungary, the prevalently used "B11" type gas appliances equipped with atmospheric burner and they have a draught hood beyond the outlet of the appliance. For the appropriate adjustment of the gas boiler to the conditions of the building, ... Keywords: CFD method, air supply, chimney, design requirements, gas appliances, numerical modelling

Lajos Barna; Róbert Goda

2007-05-01T23:59:59.000Z

70

EIA - Assumptions to the Annual Energy Outlook 2009 - Oil and Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module Assumptions to the Annual Energy Outlook 2009 Oil and Gas Supply Module Figure 7. Oil and Gas Supply Model Regions. Need help, contact the National Energy Information Center at 202-586-8800. Table 9.1. Crude Oil Technically Recoverable Resources. Need help, contact the Naitonal Energy Information Center at 202-586-8800. printer-friendly version Table 9.2. Natural Gas Technically Recoverable Resources. Need help, contact the National Energy Information Center at 202-586-8800. Table 9.2. Continued printer-friendly version Table 9.3. Assumed Size and Initial Production year of Major Announced Deepwater Discoveries. Need help, contact the National Energy Information Center at 202-586-8800. printer-friendly version Table 9.4. Assumed Annual Rates of Technological Progress for Conventional Crude Oil and Natural Gas Sources. Need help, contact the National Energy Information Center at 202-586-8800.

71

Short-term supply chain management in upstream natural gas systems  

E-Print Network (OSTI)

Natural gas supply chain planning and optimization is important to ensure security and reliability of natural gas supply. However, it is challenging due to the distinctive features of natural gas supply chains. These ...

Selot, Ajay

2009-01-01T23:59:59.000Z

72

EIA Data: 2009 United States Oil and Gas Supply  

Open Energy Info (EERE)

EIA Data: 2009 United States Oil and Gas Supply This dataset is the 2009...

73

EIA Data: 2010 United States Oil and Gas Supply  

Open Energy Info (EERE)

EIA Data: 2010 United States Oil and Gas Supply This dataset is the 2010...

74

Total supply chain cost model  

E-Print Network (OSTI)

Sourcing and outsourcing decisions have taken on increased importance within Teradyne to improve efficiency and competitiveness. This project delivered a conceptual framework and a software tool to analyze supply chain ...

Wu, Claudia

2005-01-01T23:59:59.000Z

75

Natural Gas Dry Production (Annual Supply & Disposition)  

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

Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production Natural Gas Processed NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG...

76

EIA - Natural Gas Pipeline Network - Natural Gas Supply Basins ...  

U.S. Energy Information Administration (EIA)

About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates

77

Supply chain management simulation: modelling a continuous process with discrete simulation techniques and its application to LNG supply chains  

Science Conference Proceedings (OSTI)

This paper discusses the problem of modelling an LNG supply chain efficiently. The production, processing, transportation and consumption of LNG (Liquid National Gas) and the associated products are a topic of major interest in the energy industry. While ...

Niels Stchedroff; Russell C. H. Cheng

2003-12-01T23:59:59.000Z

78

Illinois Supplemental Supplies of Natural Gas  

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

11 15 20 17 1 1 1967-2012 Synthetic 0 1980-2012 Propane-Air 11 15 20 17 1 1 1980-2012 Refinery Gas 1980-2005 Biomass 0 1999-2012 Other 0 2005...

79

EU Gas Supply Security: Unfinished Business  

E-Print Network (OSTI)

country in Europe for shale gas production. Exploration work was suspended after hydraulic fracturing-induced seismic activity was reported but the government allowed companies to resume work in late 2012. The UK enjoys a relatively wide political... of factors: rapid growth in Europe’s natural gas consumption until 2005; even more rapid growth of imports as European production declined; Europe’s reliance on a very small number of external suppliers; dominance of long- term, bilateral contracts between...

Noël, Pierre

2013-04-01T23:59:59.000Z

80

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification  

E-Print Network (OSTI)

anticipated future growth in imported natural gas, reducing natural gas prices may well enhance social welfareEasing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply on the findings of a recent study that I helped manage and conduct, a study titled "Easing the Natural Gas Crisis

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Gas Hydrate: A Realistic Future Source of Gas Supply? | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gas Hydrate: A Realistic Future Source of Gas Supply? Gas Hydrate: A Realistic Future Source of Gas Supply? Gas Hydrate: A Realistic Future Source of Gas Supply? August 24, 2009 - 1:00pm Addthis Washington, D.C - A Department of Energy scientist writes in this week's Science magazine that a search is underway for a potentially immense untapped energy resource that, given its global distribution, has the potential to alter existing energy production and supply paradigms. In the article, Is Gas Hydrate Energy Within Reach?, Dr. Ray Boswell, technology manager for the Office of Fossil Energy's National Energy Technology Laboratory methane hydrates program, discusses recent findings and new research approaches that are clarifying gas hydrates energy potential. Driving the current interest in gas hydrate resource appraisal is the focus

82

Gas Hydrate: A Realistic Future Source of Gas Supply? | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gas Hydrate: A Realistic Future Source of Gas Supply? Gas Hydrate: A Realistic Future Source of Gas Supply? Gas Hydrate: A Realistic Future Source of Gas Supply? August 24, 2009 - 1:00pm Addthis Washington, D.C - A Department of Energy scientist writes in this week's Science magazine that a search is underway for a potentially immense untapped energy resource that, given its global distribution, has the potential to alter existing energy production and supply paradigms. In the article, Is Gas Hydrate Energy Within Reach?, Dr. Ray Boswell, technology manager for the Office of Fossil Energy's National Energy Technology Laboratory methane hydrates program, discusses recent findings and new research approaches that are clarifying gas hydrates energy potential. Driving the current interest in gas hydrate resource appraisal is the focus

83

Assumptions to the Annual Energy Outlook - Oil and Gas Supply Module  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module Assumption to the Annual Energy Outlook Oil and Gas Supply Module Figure 7. Oil and Gas Supply Model Regions. Having problems, call our National Energy Information Center at 202-586-8800 for help. Table 50. Crude Oil Technically Recoverable Resources (Billion barrels) Printer Friendly Version Crude Oil Resource Category As of January 1, 2002 Undiscovered 56.02 Onshore 19.33 Northeast 1.47 Gulf Coast 4.76 Midcontinent 1.12 Southwest 3.25 Rocky Moutain 5.73 West Coast 3.00 Offshore 36.69 Deep (>200 meter W.D.) 35.01 Shallow (0-200 meter W.D.) 1.69 Inferred Reserves 49.14 Onshore 37.78 Northeast 0.79 Gulf Coast 0.80 Midcontinent 3.73 Southwest 14.61 Rocky Mountain 9.91 West Coast 7.94

84

New Jersey Supplemental Supplies of Natural Gas  

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

379 489 454 457 392 139 1967-2012 Synthetic 0 0 1980-2012 Propane-Air 0 1980-2012 Refinery Gas 1980-2005 Biomass 0 1993-2012 Other 379 489 454 457 392 139 1980-2012...

85

U.S. Natural Gas Markets: Mid-Term Prospects for Natural Gas Supply  

Reports and Publications (EIA)

This service report describes the recent behavior of natural gas markets with respect to natural gas prices, their potential future behavior, the potential future supply contribution of liquefied natural gas and increased access to Federally restricted resources, and the need for improved natural gas data.

Philip Budzik

2001-12-01T23:59:59.000Z

86

California's LNG Terminals: The Promise of New Gas Supplies  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

LNG Terminals: The LNG Terminals: The Promise of New Gas Supplies November 28, 2007 © 2005 San Diego Gas and Electric and Southern California Gas Company. All copyright and trademark rights reserved What is LNG? LNG is natural gas that has been liquefied, by cooling it to a temperature of -260°F, so it can be shipped across oceans. The gas is then re-vaporized and delivered to customers. 2 Why Do We Need LNG? California Energy Commission * 2007 Integrated Energy Policy Report -North American gas demand to increase at annual rate of 2.1% over next decade -Domestic production expected to remain flat -LNG imports to US expected to increase 14% annually by 2017 3 4 Benefits of LNG * Reduced energy costs for customers * Increased competition between gas suppliers * Improved reliability for customers

87

Staff Listing - Office for Oil and Gas Global Security and Supply...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Staff Listing - Office for Oil and Gas Global Security and Supply Staff Listing - Office for Oil and Gas Global Security and Supply Director of the Office for Oil and Gas Global...

88

The impacts of technology on global unconventional gas supply  

E-Print Network (OSTI)

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, tight sands, and shales. Whereas these resources are abundant, they have largely been overlooked and understudied, especially outside of North America. New technologies, including those needed to unlock unconventional gas (UCG) resources, have been acknowledged to be the most significant factor in increasing natural gas supply in the United States. This study evaluates advances in critical technology that will most likely increase supply the most. Advanced technology is one of the main drivers in increasing unconventional natural gas production, as observed in the United States, Canada, and Australia. 3D seismic, horizontal drilling, multilateral completion, water and gel based fracturing, coiled tubing rig, enhanced recovery, and produced water treatments are current important technologies critical in developing unconventional gas resources. More advanced technologies with significant impacts are expected to be available in the next decades. Fit-to-purpose technology reduces the cost to recover gas from unconventional resources. The better the unconventional gas resources are characterized, the better we can tailor specific technology to recover the gas, and less cost are needed. Analogy assumption is a good start in deciding which critical technology to be transferred to undeveloped unconventional reservoirs. If the key properties of two unconventional gas basins or formations are more or less similar, it is expected that the impact of certain technology applied in one basin or formation will resemble the impact to the other basin or formation.

Yanty, Evi

2007-08-01T23:59:59.000Z

89

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

NANGAS (North American Natural Gas Analysis System), E2020 (MARKet ALlocation), NARG (North American Regional Gas model)Forum (EMF). 2003. Natural Gas, Fuel Diversity and North

Wiser, Ryan

2005-01-01T23:59:59.000Z

91

Kalimantan field development hikes gas supply for LNG export  

Science Conference Proceedings (OSTI)

This paper reports on the development of Tambora and Tunu gas fields in Kalimantan that have increased available gas supply for the export of liquefied natural gas (LNG) from Indonesia. The demand for LNG is increasing in the energy thirsty Far East market. And Indonesia, the world's largest exporter, is keeping pace by expanding the Bontang liquefaction plant in East Kalimantan. A fifth train, with a capacity of around 2.5 million tons/year, began operating in January 1990. Start-up of a sixth train, of identical capacity, is planned for January 1994. The Bontang plant is operated by PT Badak on behalf of Pertamina, the Indonesian state oil and gas mining company. The feed to the fifth train comes primarily from the first-phase development of Total Indonesie's two gas fields, Tambora and Tunu. The sixth train will be fed by a second-phase development of the Tunu field.

Suharmoko, G.R. (Total Indonesie, Balikpapan (ID))

1991-10-14T23:59:59.000Z

92

Economics of gas supply: the effects of decontrol-policy options  

Science Conference Proceedings (OSTI)

A model for interpreting the effects of four alternatives to the Natural Gas Policy Act covers the options of accelerated partial decontrol, early full decontrol, and phased decontrol. The effects of these gas-pricing options on the development of domestic supplies of both conventional and unconventional sources, as well as the forecast under current policy, are examined in detail. All of the alternatives have a positive effect on supply relative to continuing controls indefinitely. The methodology for production forecasting appears in the appendix. 6 figures, 5 tables. (DCK)

Muzzo, S.E.

1982-10-01T23:59:59.000Z

93

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Energy Modeling System); POEMS (Policy Office Electricity Modeling System), CRA (Charles River Associates), NANGAS (North American Natural Gas Analysis

Wiser, Ryan

2005-01-01T23:59:59.000Z

94

Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply  

Reports and Publications (EIA)

This report addresses the potential impact of rotating electrical outages on petroleum product and natural gas supply in California.

Information Center

2001-06-01T23:59:59.000Z

95

National gas survey. Volume I, Chapter 9. Future domestic natural gas supplies. Preliminary draft  

SciTech Connect

This report presents four separate forecasts for the future gas supplies for the 1971--1990 period. The forecasts were prepared by the Federal Power Commission staff, and all forecasts are made with the assumption that the domestic market will be able to absorb all the gas that might become available during the specified period. Information is included for future available supplies from the U.S. Outer Continental Shelf as well as from conventional sources and from gas that might be produced as a result of stimulation of low-permeability reservoirs. The general assumptions used for the future gas supply projections are included in the appendix of the report. The data are presented in 65 separate tables and 14 figures. (BLM)

1974-01-01T23:59:59.000Z

96

Gas Supply: Outlook for Critical New Sources to Meet Growing Gas Requirements: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

The outlook for natural gas supplies is pivotal to long-term changes in the U.S. generation mix and to immediate costs of electricity. The price shock of 2000-01 was followed by another in 2002-03, and prices remain anomalously high. A sea change in expectations for natural gas is taking place, driven primarily by persistent difficulties expanding supplies in the face of accelerating depletion. This report assesses the lackluster recent gas supply response and the outlook for two major emerging sources, ...

2004-01-27T23:59:59.000Z

97

AEO2011: Oil and Gas Supply | OpenEI  

Open Energy Info (EERE)

Supply Supply Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 14, and contains only the reference case. The dataset uses gigawatts. The data is broken down into production, net imports, consumption by sector and price. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO EIA gas oil Data Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote

98

Neutron generator power supply modeling in EMMA  

SciTech Connect

Sandia National Laboratories has prime responsibility for neutron generator design and manufacturing, and is committed to developing predictive tools for modeling neutron generator performance. An important aspect of understanding component performance is explosively driven ferroelectric power supply modeling. EMMA (ElectroMechanical Modeling in ALEGRA) is a three dimensional compile time version of Sandia`s ALEGRA code. The code is built on top of the general ALEGRA framework for parallel shock-physics computations but also includes additional capability for modeling the electric potential field in dielectrics. The overall package includes shock propagation due to explosive detonation, depoling of ferroelectric ceramics, electric field calculation and coupling with a general lumped element circuit equation system. The AZTEC parallel iterative solver is used to solve for the electric potential. The DASPK differential algebraic equation package is used to solve the circuit equation system. Sample calculations are described.

Robinson, A.C.; Farnsworth, A.V.; Montgomery, S.T.; Peery, J.S; Merewether, K.O.

1996-12-01T23:59:59.000Z

99

Impact of Natural Gas Price Decontrol on Gas Supply, Demand and Prices  

E-Print Network (OSTI)

Major analysis completed recently by the gas transmission and distribution industry concludes that available supplies of gas energy will fall into the range of 23-31 trillion cubic feet (Tcf) by the year 2000, as conventional gas production is increasingly supplemented by supplies from coal gasification, Alaska, unconventional sources, LNG, Canada, and Mexico. At the same time, however, gas demand is characterized by price-induced conservation in all markets, together with continuing gas demand constraints and financial burdens imposed by Government regulators at all levels. With these restrictions and burdens eased, the gas industry can rebuild its marketing acumen and capacity. Thus, gas demand may likely increase in both the traditional heating and industrial fuel and feedstock applications, as well as such new non-traditional uses as cogeneration, natural gas vehicles and select gas use with coal. With regard to impending gas price decontrol, analyses conducted by the American Gas Association (A.G.A.), as well as studies by the U.S. Department of Energy and other groups, concur in the important finding that natural gas will be able to compete with alternate fuels in the energy marketplace after decontrol, as long as indefinite price escalators and other rigidities in gas purchase contracts can be defused so as to enable the market system to operate successfully. A.G.A.'s analysis, indeed, concluded that gas prices are rising rapidly enough under the existing law between now and 1985, so that concerns of a sudden price increase after deregulation in that year may be somewhat overstated, as long as the indefinite price escalators are defused.

Schlesinger, B.

1982-01-01T23:59:59.000Z

100

Oil and Gas Supply Module - Energy Information Administration  

U.S. Energy Information Administration (EIA)

production of oil shale being economically feasible. Consequently, the Oil Shale Supply Submodule assumes that large-

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

EIA Data: 2009 United States Oil and Gas Supply | OpenEI  

Open Energy Info (EERE)

Login | Sign Up Search Facebook icon Twitter icon EIA Data: 2009 United States Oil and Gas Supply Dataset Summary Description This dataset is the 2009 United States Oil...

102

EIA Data: 2010 United States Oil and Gas Supply | OpenEI  

Open Energy Info (EERE)

Login | Sign Up Search Facebook icon Twitter icon EIA Data: 2010 United States Oil and Gas Supply Dataset Summary Description This dataset is the 2010 United States Oil...

103

Natural Gas Withdrawals from Underground Storage (Annual Supply...  

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

Gas Wells Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

104

Understanding the Impacts of Incremental Gas Supply on the Flow ...  

U.S. Energy Information Administration (EIA)

High natural gas prices and sharply higher oil and natural gas field revenues are expected to drive a resurgence in natural gas-directed drilling activity this year ...

105

The 'Supply-of-Storage' for Natural Gas in California  

E-Print Network (OSTI)

95616 Abstract: Do natural gas storage decisions inCHARACTERISTICS OF NATURAL GAS STORAGE FACILITIES Apart fromofficial seasons in natural gas storage, one for injection

Uria, Rocio; Williams, Jeffrey

2005-01-01T23:59:59.000Z

106

Cover and startup gas supply system for solid oxide fuel cell generator  

DOE Patents (OSTI)

A cover and startup gas supply system for a solid oxide fuel cell power generator is disclosed. Hydrocarbon fuel, such as natural gas or diesel fuel, and oxygen-containing gas are supplied to a burner. Combustion gas exiting the burner is cooled prior to delivery to the solid oxide fuel cell. The system mixes the combusted hydrocarbon fuel constituents with hydrogen which is preferably stored in solid form to obtain a non-explosive gas mixture. The system may be used to provide both non-explosive cover gas and hydrogen-rich startup gas to the fuel cell.

Singh, Prabhakar (Export, PA); George, Raymond A. (Pittsburgh, PA)

1999-01-01T23:59:59.000Z

107

Cover and startup gas supply system for solid oxide fuel cell generator  

DOE Patents (OSTI)

A cover and startup gas supply system for a solid oxide fuel cell power generator is disclosed. Hydrocarbon fuel, such as natural gas or diesel fuel, and oxygen-containing gas are supplied to a burner. Combustion gas exiting the burner is cooled prior to delivery to the solid oxide fuel cell. The system mixes the combusted hydrocarbon fuel constituents with hydrogen which is preferably stored in solid form to obtain a non-explosive gas mixture. The system may be used to provide both non-explosive cover gas and hydrogen-rich startup gas to the fuel cell. 4 figs.

Singh, P.; George, R.A.

1999-07-27T23:59:59.000Z

108

Aluminum Scrap Supply and Environmental Impact Model  

Science Conference Proceedings (OSTI)

Aug 1, 2000 ... It has been applied to the USA to forecast sources of aluminum scrap ... good balance between supply and demand on average over the years.

109

Figure 6. Electricity Market Model Supply Regions  

E-Print Network (OSTI)

The NEMS Electricity Market Module (EMM) represents the capacity planning, dispatching, and pricing of electricity. It is composed of four submodules—electricity capacity planning, electricity fuel dispatching, load and demand electricity, and electricity finance and pricing. It includes nonutility capacity and generation, and electricity transmission and trade. A detailed description of the EMM is provided in the EIA publication, Electricity Market Module of the National Energy Modeling System 2010, DOE/EIA-M068(2010). Based on fuel prices and electricity demands provided by the other modules of the NEMS, the EMM determines the most economical way to supply electricity, within environmental and operational constraints. There are assumptions about the operations of the electricity sector and the costs of various options in each of the EMM submodules. This section describes the model parameters and assumptions used in EMM. It includes a discussion of legislation and regulations that are incorporated in EMM as well as information about the climate change action plan. The various electricity and technology cases are also described.

unknown authors

2010-01-01T23:59:59.000Z

110

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

policies on the natural gas market. References American Council for an Energy-Energy Modeling System); POEMS (Policy Office Electricity Modeling System), CRA (Charles River Associates), NANGAS (North American

Wiser, Ryan

2005-01-01T23:59:59.000Z

111

EIA Data: 2011 United States Oil and Gas Supply | OpenEI  

Open Energy Info (EERE)

Oil and Gas Supply Oil and Gas Supply Dataset Summary Description This dataset is the 2011 United States Oil and Gas Supply, part of the Annual Energy Outlook that highlights changes in the AEO Reference case projections for key energy topics. Source EIA Date Released December 16th, 2010 (3 years ago) Date Updated Unknown Keywords AEO EIA energy gas oil Supply Data application/vnd.ms-excel icon Oil and Gas Supply (xls, 32.3 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment http://www.eia.gov/abouteia/copyrights_reuse.cfm Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote

112

DOE, States Seek Closer Collaboration on Oil and Gas Supply and Delivery,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE, States Seek Closer Collaboration on Oil and Gas Supply and DOE, States Seek Closer Collaboration on Oil and Gas Supply and Delivery, Climate Change Mitigation DOE, States Seek Closer Collaboration on Oil and Gas Supply and Delivery, Climate Change Mitigation October 1, 2009 - 1:00pm Addthis Washington, DC - An agreement aimed at improving cooperation and collaboration in the areas of oil and natural gas supply, delivery, and climate change mitigation, has been signed by the U.S. Department of Energy (DOE) and the Interstate Oil and Gas Compact Commission (IOGCC). The Memorandum of Understanding (MOU) provides a framework for states and DOE to work more closely on "responsible domestic production of oil and natural gas; carbon capture, transport and geologic storage; and other topics of mutual interest." The document was signed by DOE's Assistant

113

The 'Supply-of-Storage' for Natural Gas in California  

E-Print Network (OSTI)

cycle imposed by natural gas demand. Over the last twentyseasonal cycle in natural gas demand makes price at theCalifornia increase demand for natural gas, which is partly

Uria, Rocio; Williams, Jeffrey

2005-01-01T23:59:59.000Z

114

Performance and supply of fluids in a modern gas turbine.  

E-Print Network (OSTI)

??This thesis considers the role fluids play in improving the efficiency and reducing the environmental impact of modern gas turbines. This includes gas turbines used… (more)

Askins, John Stephen

2010-01-01T23:59:59.000Z

115

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

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

Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

116

Natural Gas Withdrawals from Underground Storage (Annual Supply...  

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

Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells...

117

Model for Energy Supply System Alternatives and their General Environmental  

Open Energy Info (EERE)

Model for Energy Supply System Alternatives and their General Environmental Model for Energy Supply System Alternatives and their General Environmental Impacts (MESSAGE) (Redirected from Model for Energy Supply System Alternatives and their General Environmental Impacts) Jump to: navigation, search Tool Summary Name: Model for Energy Supply System Alternatives and their General Environmental Impacts Agency/Company /Organization: International Atomic Energy Agency Sector: Energy Focus Area: Renewable Energy, Energy Efficiency Topics: Pathways analysis Resource Type: Software/modeling tools Website: www-tc.iaea.org/tcweb/abouttc/strategy/Thematic/pdf/presentations/ener References: Overview of IAEA PESS Models [1] "MESSAGE combines technologies and fuels to construct so-called "energy chains", making it possible to map energy flows from supply (resource

118

Modeling Structural Changes in Market Demand and Supply  

E-Print Network (OSTI)

Economic events may cause structural changes in markets. To know the effect of the economic event we should analyze the structural changes in the market demand and supply. The purpose of this dissertation is to analyze the effect of selected economic events on market demand and supply using econometric models. Structural changes can be modeled according to the types of changes. For an abrupt and instantaneous break, a dummy variable model can be used. For a smooth and gradual movement, proxy variables which represent the event can be applied, if we know the variables. If we don?t know the appropriate proxy variables, a smooth transition regression model can be employed. The BSE (Bovine Spongiform Encephalopathy) outbreak in the U.S. in 2003 is assumed to make abrupt and instantaneous changes in Korean meat consumption. To analyze the effect on Korean meat consumption, the Korean demands of beef, pork, chicken, and U.S. beef are estimated using an LA/AIDS (Linear Approximate Almost Ideal Demand System) model with the dummy variable specifying the time before and after the BSE. From the results we can confirm that food safety concerns caused by the BSE case changed Korean meat consumption structure. Korean beef and U.S. beef became less elastic, and pork and chicken got more elastic to budget. Korean beef became less price elastic, but pork and U.S. beef got more price elastic. The changes of U.S. natural gas supply caused by technology development and depletion in reserves are analyzed using a smooth transition regression model. From the results, we can confirm that the productivity improvement by technology development is greater than the labor cost increase by depletion, but not greater than the capital cost increase by depletion in mid-2000s. The effects of posting the winning bid in a repeated Vickrey auction are examined using a proxy variable. By applying an unobserved effect Tobit model to the experimental auction done by Corrigan and Rousu (2006) for a candy bar, we can confirm that the changes of bidding behavior are significant, especially when the winning bid is high. By extracting the bid affiliation effects, we showed that true willingness to pay can be estimated.

Park, Beom Su

2010-08-01T23:59:59.000Z

119

Documentation of the Oil and Gas Supply Module (OGSM)  

U.S. Energy Information Administration (EIA)

Tight Gas Production ..... 3-B-10 3B-3 Tight Sand Resource Base ..... 3B-1-2 3B-4 Gas Shale Resource Base..... 3B-1-4 3B-5 ...

120

EIA - The National Energy Modeling System: An Overview 2003-Oil and Gas  

Gasoline and Diesel Fuel Update (EIA)

Oil and Gas Supply Module Oil and Gas Supply Module The National Energy Modeling System: An Overview 2003 Oil and Gas Supply Module The oil and gas supply module (OGSM) consists of a series of process submodules that project the availability of: Domestic crude oil production and dry natural gas production from onshore, offshore, and Alaskan reservoirs Imported pipeline–quality gas from Mexico and Canada Imported liquefied natural gas. Figure 12. Oil and Gas Supply Module Regions. Need help, contact the National Energy Information Center at 202-202-586-8800. Figure 13. Oil and Gas Suppply Module Structure. Need help, contact the National Energy Information Center at 202-586-8800. Oil and Gas Supply Module Table. Need help, contact the National Energy Information Center at 202-586-8800.

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Natural Gas Withdrawals from Underground Storage (Annual Supply &  

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

Citygate Price Residential Price Commercial Price Industrial Price Electric Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports By Pipeline LNG Exports Underground Storage Capacity Gas in Underground Storage Base Gas in Underground Storage Working Gas in Underground Storage Underground Storage Injections Underground Storage Withdrawals Underground Storage Net Withdrawals Total Consumption Lease and Plant Fuel Consumption Pipeline & Distribution Use Delivered to Consumers Residential Commercial Industrial Vehicle Fuel Electric Power Period: Monthly Annual

122

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

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

Citygate Price Residential Price Commercial Price Industrial Price Electric Power Price Gross Withdrawals Gross Withdrawals From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas Wells Gross Withdrawals From Coalbed Wells Repressuring Nonhydrocarbon Gases Removed Vented and Flared Marketed Production NGPL Production, Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports By Pipeline LNG Exports Underground Storage Capacity Gas in Underground Storage Base Gas in Underground Storage Working Gas in Underground Storage Underground Storage Injections Underground Storage Withdrawals Underground Storage Net Withdrawals Total Consumption Lease and Plant Fuel Consumption Pipeline & Distribution Use Delivered to Consumers Residential Commercial Industrial Vehicle Fuel Electric Power Period: Monthly Annual

123

Model for Energy Supply System Alternatives and their General Environmental  

Open Energy Info (EERE)

Model for Energy Supply System Alternatives and their General Environmental Model for Energy Supply System Alternatives and their General Environmental Impacts (MESSAGE) Jump to: navigation, search Tool Summary Name: Model for Energy Supply System Alternatives and their General Environmental Impacts Agency/Company /Organization: International Atomic Energy Agency Sector: Energy Focus Area: Renewable Energy, Energy Efficiency Topics: Pathways analysis Resource Type: Software/modeling tools Website: www-tc.iaea.org/tcweb/abouttc/strategy/Thematic/pdf/presentations/ener References: Overview of IAEA PESS Models [1] "MESSAGE combines technologies and fuels to construct so-called "energy chains", making it possible to map energy flows from supply (resource extraction) to demand (energy services). The model can help design long

124

AEO2011: Oil and Gas Supply

Open Energy Info (EERE)

Oil and Gas Supply This dataset comes from...

125

EIA Data: 2011 United States Oil and Gas Supply  

Open Energy Info (EERE)

small;" class"Apple-style-span">This dataset is the 2011 United States Oil and Gas Supply<...

126

Small turbines in distributed utility application: Natural gas pressure supply requirements  

SciTech Connect

Implementing distributed utility can strengthen the local distribution system and help avoid or delay the expense of upgrading transformers and feeders. The gas turbine-generator set is an attractive option based on its low front-end capital cost, reliable performance at unmanned stations, and environmental performance characteristics. This report assesses gas turbine utilization issues from a perspective of fuel supply pressure requirements and discusses both cost and operational factors. A primary operational consideration for siting gas turbines on the electric distribution system is whether the local gas distribution company can supply gas at the required pressure. Currently available gas turbine engines require gas supply pressures of at least 150 pounds per square inch gauge, more typically, 250 to 350 psig. Few LDCs maintain line pressure in excess of 125 psig. One option for meeting the gas pressure requirements is to upgrade or extend an existing pipeline and connect that pipeline to a high-pressure supply source, such as an interstate transmission line. However, constructing new pipeline is expensive, and the small volume of gas required by the turbine for the application offers little incentive for the LDC to provide this service. Another way to meet gas pressure requirements is to boost the compression of the fuel gas at the gas turbine site. Fuel gas booster compressors are readily available as stand-alone units and can satisfactorily increase the supply pressure to meet the turbine engine requirement. However, the life-cycle costs of this equipment are not inconsequential, and maintenance and reliability issues for boosters in this application are questionable and require further study. These factors may make the gas turbine option a less attractive solution in DU applications than first indicated by just the $/kW capital cost. On the other hand, for some applications other DU technologies, such as photovoltaics, may be the more attractive option.

Goldstein, H.L.

1996-05-01T23:59:59.000Z

127

A Stochastic Unit Commitment Model for Integrating Renewable Supply  

E-Print Network (OSTI)

A Stochastic Unit Commitment Model for Integrating Renewable Supply and Demand Response Anthony from the large-scale integration of renewable energy sources and deferrable demand in power systems. We- sorbing the uncertainty and variability associated with renewable supply: centralized co

Oren, Shmuel S.

128

Systems thinking benefits in supply change management: an illustration of the viable systems model in a Supply Chain  

Science Conference Proceedings (OSTI)

Existing product development models are solely an organisational matter. They do not take into consideration the whole Supply Chain (SC) and its different actors. In this article, we investigate how Supply Chain Management and Viable System Model ... Keywords: SCM, VSM, lead user, process industry, product development, supply chain management, viable system model

Diana Chroneer; Anita Mirijamdotter

2009-03-01T23:59:59.000Z

129

Coke battery with 51-m{sup 3} furnace chambers and lateral supply of mixed gas  

SciTech Connect

The basic approaches employed in the construction of coke battery 11A at OAO Magnitogorskii Metallurgicheskii Kombinat are outlined. This battery includes 51.0-m{sup 3} furnaces and a dust-free coke-supply system designed by Giprokoks with lateral gas supply; it is heated exclusively by low-calorific mixed gas consisting of blast-furnace gas with added coke-oven gas. The 82 furnaces in the coke battery are divided into two blocks of 41. The gross coke output of the battery (6% moisture content) is 1140000 t/yr.

V.I. Rudyka; N.Y. Chebotarev; O.N. Surenskii; V.V. Derevich [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

130

Emerging Oil & Gas Supplies: Future Prospects for Oil ...  

U.S. Energy Information Administration (EIA)

The shale gas & tight oil technology story is only beginning, with much yet to be written • Technology is creating new resources out of rocks

131

Staff Listing - Office for Oil and Gas Global Security and Supply |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Staff Listing - Office for Staff Listing - Office for Oil and Gas Global Security and Supply Staff Listing - Office for Oil and Gas Global Security and Supply Director of the Office for Oil and Gas Global Security and Supply (Vacant) Natural Gas Regulatory Activities Division John A. Anderson, Director Room 3E-042 Lisa Craig Room 3E-042 Telephone (202)586-9484 FAX (202) 586-6050 Case Management Beverly Howard Room 3E-042 Telephone (202) 586-9387 FAX (202) 586-6050 Lisa Tracy Room 3E-052 Telephone (202) 586-4523 FAX (202) 586-6050 Marc Talbert Room 3E-042 Telephone (202) 586-7991 FAX (202) 586-6050 Office of Natural Gas Docket Room Larine Moore Docket Room Manager Room 3E-042 Telephone (202) 586-9478 FAX (202) 586-6050 International Activities Division Sally Kornfeld, Director Room 3E-042 Telephone (202) 586-3814

132

,"U.S. Natural Gas Annual Supply and Disposition Balance"  

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

cekey","N9070US2","N9090US2","NA1240NUS2","NA1270NUS2","N5060US2" "Date","U.S. Dry Natural Gas Production (MMcf)","U.S. Natural Gas Input Supplemental Fuels (MMcf)","U.S....

133

Portugal Egypt Figure 2. Natural gas supply and disposition in the United States, 2012  

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

Portugal Egypt Figure 2. Natural gas supply and disposition in the United States, 2012 (trillion cubic feet) Natural Gas Plant Liquids Production Gross Withdrawals From Gas and Oil Wells Nonhydrocarbon Gases Removed Vented/Flared Reservoir Repressuring Production Dry Gas Imports Canada Trinidad/Tobago Natural Gas Storage Facilities Exports Japan Canada Mexico Additions Withdrawals Gas Industry Use Residential Commercial Industrial Vehicle Fuel Electric Power 29.5 0.8 0.2 3.3 2.963 0.112 0.620 0.971 0.014 24.1 1.3 2.9 2.8 2.5 2.9 7.2 0.03 9.1 0.003 Sources: Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition"; Form EIA-895, "Annual Quantity and

134

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

present concerns about natural gas prices and the findingsEconomy (ACEEE). 2003. Natural Gas Price Effects of EnergyGas Crisis: Reducing Natural Gas Prices through Increased

Wiser, Ryan

2005-01-01T23:59:59.000Z

135

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

concerns about natural gas prices and the findings reportedACEEE). 2003. Natural Gas Price Effects of Energy EfficiencyGas Crisis: Reducing Natural Gas Prices Through Electricity

Wiser, Ryan

2005-01-01T23:59:59.000Z

136

Fuel cell power supply with oxidant and fuel gas switching  

DOE Patents (OSTI)

This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation.

McElroy, James F. (Hamilton, MA); Chludzinski, Paul J. (Swampscott, MA); Dantowitz, Philip (Peabody, MA)

1987-01-01T23:59:59.000Z

137

Fuel cell power supply with oxidant and fuel gas switching  

DOE Patents (OSTI)

This invention relates to a fuel cell vehicular power plant. Fuel for the fuel stack is supplied by a hydrocarbon (methanol) catalytic cracking reactor and CO shift reactor. A water electrolysis subsystem is associated with the stack. During low power operation part of the fuel cell power is used to electrolyze water with hydrogen and oxygen electrolysis products being stored in pressure vessels. During peak power intervals, viz, during acceleration or start-up, pure oxygen and pure hydrogen from the pressure vessel are supplied as the reaction gases to the cathodes and anodes in place of air and methanol reformate. This allows the fuel cell stack to be sized for normal low power/air operation but with a peak power capacity several times greater than that for normal operation. 2 figs.

McElroy, J.F.; Chludzinski, P.J.; Dantowitz, P.

1987-04-14T23:59:59.000Z

138

The Research Path to Determining the Natural Gas Supply Potential of Marine Gas Hydrates  

Science Conference Proceedings (OSTI)

A primary goal of the U.S. National Interagency Gas Hydrates R&D program is to determine the natural gas production potential of marine gas hydrates. In pursuing this goal, four primary areas of effort are being conducted in parallel. First, are wide-ranging basic scientific investigations in both the laboratory and in the field designed to advance the understanding of the nature and behavior of gas hydrate bearing sediments (GHBS). This multi-disciplinary work has wide-ranging direct applications to resource recovery, including assisting the development of exploration and production technologies through better rock physics models for GHBS and also in providing key data for numerical simulations of productivity, reservoir geomechanical response, and other phenomena. In addition, fundamental science efforts are essential to developing a fuller understanding of the role gas hydrates play in the natural environment and the potential environmental implications of gas hydrate production, a critical precursor to commercial extraction. A second area of effort is the confirmation of resource presence and viability via a series of multi-well marine drilling expeditions. The collection of data in the field is essential to further clarifying what proportion of the likely immense in-place marine gas hydrate resource exists in accumulations of sufficient quality to represent potential commercial production prospects. A third research focus area is the integration of geologic, geophysical, and geochemical field data into an effective suite of exploration tools that can support the delineation and characterization commercial gas hydrate prospects prior to drilling. The fourth primary research focus is the development and testing of well-based extraction technologies (including drilling, completion, stimulation and production) that can safely deliver commercial gas production rates from gas hydrate reservoirs in a variety of settings. Initial efforts will take advantage of the relatively favorable economics of conducting production tests in Arctic gas-hydrate bearing sandstones with the intent of translating the knowledge gained to later testing in marine sandstone reservoirs. The full and concurrent pusuit of each of these research topics is essential to the determining the future production potential of naturally-occuring gas hydrates.

Boswell, R.M.; Rose, K.K.; Baker, R.C.

2008-06-01T23:59:59.000Z

139

Worldwide Natural Gas Supply and Demand and the Outlook for Global LNG Trade  

Reports and Publications (EIA)

This article is adapted from testimony by Jay Hakes, Administrator of the Energy Information Administration, before the Senate Energy and Natural Resources Committee on July 23, 1997. The hearing focused on the examination of certain aspects of natural gas into the next century with special emphasis on world natural gas supply and demand to 2015.

Information Center

1997-08-01T23:59:59.000Z

140

AEO2011: Lower 48 Natural Gas Production and Wellhead Prices by Supply  

Open Energy Info (EERE)

Natural Gas Production and Wellhead Prices by Supply Natural Gas Production and Wellhead Prices by Supply Region Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 133, and contains only the reference case. The data is broken down into Production, lower 48 onshore and lower 48 offshore. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO EIA Natural Gas Wellhead prices Data application/vnd.ms-excel icon AEO2011: Lower 48 Natural Gas Production and Wellhead Prices by Supply Region- Reference Case (xls, 59.1 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Understanding the Impacts of Incremental Gas Supply on the Flow Dynamics Across the North American Grid  

Reports and Publications (EIA)

The presentation "Understanding the Impacts of Incremental Gas Supply on the Flow Dynamics Across the North American Grid" was given at the Canadian Institute's BC LNG Forum on November 20, 2006. The presentation provides an overview of EIA's long-term natural gas projections under reference case and sensitivity cases from the Annual Energy Outlook 2006, with special emphasis on natural gas flows in the West Coast.

Information Center

2006-12-14T23:59:59.000Z

142

Limited Electricity Generation Supply and Limited Natural Gas Supply Cases (released in AEO2008)  

Reports and Publications (EIA)

Development of U.S. energy resources and the permitting and construction of large energy facilities have become increasingly difficult over the past 20 years, and they could become even more difficult in the future. Growing public concern about global warming and CO2 emissions also casts doubt on future consumption of fossil fuelsparticularly coal, which releases the largest amount of CO2 per unit of energy produced. Even without regulations to limit greenhouse gas emissions in the United States, the investment community may already be limiting the future use of some energy options. In addition, there is considerable uncertainty about the future availability of, and access to, both domestic and foreign natural gas resources.

Information Center

2008-06-26T23:59:59.000Z

143

U.S. Natural Gas Monthly Supply and Disposition Balance  

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

Monthly Supply and Disposition Balance Monthly Supply and Disposition Balance (Billion Cubic Feet) Period: Monthly Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Data Series Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History Gross Withdrawals 2,473 2,541 2,444 2,550 2,540 2,465 1973-2013 Marketed Production 2,086 2,166 2,097 2,188 2,188 2,105 1973-2013 NGPL Production, Gaseous Equivalent 107 110 107 113 117 116 1973-2013 Dry Production 1,979 2,056 1,990 2,076 2,071 1,989 1973-2013 Supplemental Gaseous Fuels 5 5 3 3 5 5 1973-2013 Net Imports 95 92 103 108 106 123 1973-2013 Net Storage Withdrawals -136 -418 -372 -275 -270 -355 1973-2013 Balancing Item 14 12 9 7 6 -5 2001-2013

144

Comparing Price Forecast Accuracy of Natural Gas Models and Futures Markets  

E-Print Network (OSTI)

information about natural gas supply and demand. As amarket Calibrating natural gas supply and demand conditionsnation-wide natural gas market, equalizing supply with

Wong-Parodi, Gabrielle; Dale, Larry; Lekov, Alex

2005-01-01T23:59:59.000Z

145

Ruby Pipeline ramps up rapidly to supply natural gas to ...  

U.S. Energy Information Administration (EIA)

A B C D E F G H I J K L M N O P Q R S T U V W XYZ. Today in Energy. ... PG&E's overall natural gas needs have changed little since late July when Ruby began flowing ...

146

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

2003a. Balancing Natural Gas Policy – Fueling the Demands of2003b. Balancing Natural Gas Policy – Fueling the Demands ofsector diversification policies on the natural gas market.

Wiser, Ryan

2005-01-01T23:59:59.000Z

147

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

that by reducing natural gas demand, deployment of renewableto drive, growth in natural gas demand. For example, fromby reducing natural gas demand, increased diversification

Wiser, Ryan

2005-01-01T23:59:59.000Z

148

AEO2011: Natural Gas Supply, Disposition, and Prices | OpenEI  

Open Energy Info (EERE)

Supply, Disposition, and Prices Supply, Disposition, and Prices Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 13, and contains only the reference case. The dataset uses gigawatts. The data is broken down into production, net imports, consumption by sector and price. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO disposition EIA natural gas supply prices Data application/vnd.ms-excel icon AEO2011: Natural Gas Supply, Disposition, and Prices - Reference Case (xls, 91.8 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL)

149

,"U.S. Natural Gas Monthly Supply and Disposition Balance"  

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

Monthly Supply and Disposition Balance" Monthly Supply and Disposition Balance" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Monthly Supply and Disposition Balance",9,"Monthly","9/2013","1/15/1973" ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","ng_sum_sndm_s1_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/ng/ng_sum_sndm_s1_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

150

Safety research plan for gas-supply technologies. Final report, March 1982-February 1983  

SciTech Connect

The objective of this study was to develop a multiyear research plan addressing the safety issues of the following gas supply technologies: conventional natural gas, including deep and sour gas wells; unconventional natural gas (Devonian shale, tight gas sands, coalbed methane, and geopressured methane); SNG from coal (surface and in situ), and SNG from biomass. A total of 51 safety issues were identified in the initial review. These safety issues were screened to eliminate those hazards which appeared to be relatively insignificant in terms of accident severity or frequency, or because the potential for resolving the problem through research was considered very low. Twenty-six remaining safety issues were prioritized, and of these, 9 were selected as priority research projects: two under conventional gas; one under unconventional natural gas; and six under SNG from coal. No safety research issues in the biomass area appear to warrant priority consideration.

Tipton, L.M.; Junkin, P.D.

1983-06-01T23:59:59.000Z

151

Microsoft Word - Petroleum Products Supply Model.docx  

Gasoline and Diesel Fuel Update (EIA)

Petroleum Products Supply Module Petroleum Products Supply Module Short-Term Energy Outlook Model May 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Petroleum Products Supply Module - Short-Term Energy Outlook Model i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or

152

Optimization models of gas recovery and gas condensate processing  

Science Conference Proceedings (OSTI)

We present a complex of mathematical models that formalize gas recovery and processing. Optimization problems for gas recovery and gas condensate processing are stated and corresponding solution algorithms are suggested. These mathematical models provide ...

M. Kh. Prilutskii; V. E. Kostyukov

2012-05-01T23:59:59.000Z

153

A Model to Optimize Green Energy Supply Chain  

Science Conference Proceedings (OSTI)

Bioenergy is renewable energy derived from biological sources, to be used for production of heat, electricity and transportation fuels. The collection of biomass is a logistic process from different source locations to energy plants. The biomass-to-energy ... Keywords: supply chain, green, optimize, model

Na Liu

2012-10-01T23:59:59.000Z

154

SNG (Substitute Natural Gas) supply research program status report. December 1985  

SciTech Connect

The status (1985) report contains information on activities within GRI's Substitute Natural Gas (SNG) Supply Research Program. Contract summary reports are provided for research projects in the Gasification of Fossil Fuels (Coal Gasification Processes, Associated Coal Gasification Technology, and In Situ Coal Gasification Technology); and Methane From Biomass and Wastes (Methane From Wastes, and Methane From Biomass).

Not Available

1985-12-01T23:59:59.000Z

155

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

SciTech Connect

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.

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

2008-03-04T23:59:59.000Z

156

Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply  

Gasoline and Diesel Fuel Update (EIA)

Electricity Shortage in Electricity Shortage in California: Issues for Petroleum and Natural Gas Supply 1. Summary 2. Electricity Reliability Issues in California 3. Petroleum Refineries 4. Constraints Outside the Refinery Gate 5. Petroleum Product Prices and Supply Disruptions 6. Natural Gas 7. End Notes 8. Contacts 1. Summary Industry electric reliability organizations, the California Energy Commission, and the California Independent System Operator, expect California to be subject to rotating electricity outages in the summer of 2001 during the peak afternoon demand hours. These outages are expected to affect almost all sectors of the State's economy, including crude oil and natural gas producers, petroleum refineries, and pipelines. This report addresses the potential impact of rotating electrical

157

Easing the Natural Gas Crisis: Reducing Natural Gas Prices Through Electricity Supply Diversification -- Testimony  

E-Print Network (OSTI)

Change in Consumer Electricity Bills Net Impact of RPS onon Natural Gas and Electricity Bills (2003-2020, 7% realelectricity sector should consider the potentially beneficial cross-sector impact of that diversification on natural gas prices and bills.

Wiser, Ryan

2005-01-01T23:59:59.000Z

158

Model documentation: Natural gas transmission and distribution model of the National Energy Modeling System. Volume 1  

SciTech Connect

The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of integrated Analysis and Forecasting of the Energy information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The methodology employed allows the analysis of impacts of regional capacity constraints in the interstate natural gas pipeline network and the identification of pipeline capacity expansion requirements. There is an explicit representation of core and noncore markets for natural gas transmission and distribution services, and the key components of pipeline tariffs are represented in a pricing algorithm. Natural gas pricing and flow patterns are derived by obtaining a market equilibrium across the three main elements of the natural gas market: the supply element, the demand element, and the transmission and distribution network that links them. The NGTDM consists of four modules: the Annual Flow Module, the Capacity F-expansion Module, the Pipeline Tariff Module, and the Distributor Tariff Module. A model abstract is provided in Appendix A.

NONE

1995-02-17T23:59:59.000Z

159

Real natural gas reservoir data Vs. natural gas reservoir models  

Science Conference Proceedings (OSTI)

The gas reservoir per se model is an exceedingly simple model of a natural gas reservoir designed to develop the physical relationship between ultimate recovery and rate(s) of withdrawal for production regulation policy assessment. To be responsive, ...

Ellis A. Monash; John Lohrenz

1979-03-01T23:59:59.000Z

160

Comparing Price Forecast Accuracy of Natural Gas Models and Futures Markets  

E-Print Network (OSTI)

about natural gas supply and demand. As a result, someCalibrating natural gas supply and demand conditions withelectricity and natural gas markets, demand-side management

Wong-Parodi, Gabrielle; Dale, Larry; Lekov, Alex

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

The National Energy Modeling System: An Overview 1998 - Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

NATURAL GAS TRANSMISSION AND DISTRIBUTION MODULE NATURAL GAS TRANSMISSION AND DISTRIBUTION MODULE blueball.gif (205 bytes) Annual Flow Submodule blueball.gif (205 bytes) Capacity Expansion Submodule blueball.gif (205 bytes) Pipeline Tariff Submodule blueball.gif (205 bytes) Distributor Tariff Submodule The natural gas transmission and distribution module (NGTDM) is the component of NEMS that represents the natural gas market. The NGTDM models the natural gas transmission and distribution network in the lower 48 States, which links suppliers (including importers) and consumers of natural gas. The module determines regional market-clearing prices for natural gas supplies (including border prices) and end-use consumption. The NGTDM has four primary submodules: the annual flow submodule, the capacity expansion submodule, the pipeline tariff submodule, and the

162

Model selection with considering the CO2 emission alone the global supply chain  

Science Conference Proceedings (OSTI)

This study formulates a model for analyzing eco-environmental impact on global supply chain network. The multi-criteria optimization model is applied to seek optimal solutions that not only can achieve predetermined objectives, but also can satisfy constraints ... Keywords: CO2 emission, Environmental management, Global supply chain, Integer linear programming, Multi-criteria optimization model, Supply chain management

Thi Phuong Le; Tzong-Ru Lee

2013-08-01T23:59:59.000Z

163

MODEL BASED BIOMASS SYSTEM DESIGN OF FEEDSTOCK SUPPLY SYSTEMS FOR BIOENERGY PRODUCTION  

SciTech Connect

Engineering feedstock supply systems that deliver affordable, high-quality biomass remains a challenge for the emerging bioenergy industry. Cellulosic biomass is geographically distributed and has diverse physical and chemical properties. Because of this feedstock supply systems that deliver cellulosic biomass resources to biorefineries require integration of a broad set of engineered unit operations. These unit operations include harvest and collection, storage, preprocessing, and transportation processes. Design decisions for each feedstock supply system unit operation impact the engineering design and performance of the other system elements. These interdependencies are further complicated by spatial and temporal variances such as climate conditions and biomass characteristics. This paper develops an integrated model that couples a SQL-based data management engine and systems dynamics models to design and evaluate biomass feedstock supply systems. The integrated model, called the Biomass Logistics Model (BLM), includes a suite of databases that provide 1) engineering performance data for hundreds of equipment systems, 2) spatially explicit labor cost datasets, and 3) local tax and regulation data. The BLM analytic engine is built in the systems dynamics software package PowersimTM. The BLM is designed to work with thermochemical and biochemical based biofuel conversion platforms and accommodates a range of cellulosic biomass types (i.e., herbaceous residues, short- rotation woody and herbaceous energy crops, woody residues, algae, etc.). The BLM simulates the flow of biomass through the entire supply chain, tracking changes in feedstock characteristics (i.e., moisture content, dry matter, ash content, and dry bulk density) as influenced by the various operations in the supply chain. By accounting for all of the equipment that comes into contact with biomass from the point of harvest to the throat of the conversion facility and the change in characteristics, the BLM evaluates economic performance of the engineered system, as well as determining energy consumption and green house gas performance of the design. This paper presents a BLM case study delivering corn stover to produce cellulosic ethanol. The case study utilizes the BLM to model the performance of several feedstock supply system designs. The case study also explores the impact of temporal variations in climate conditions to test the sensitivity of the engineering designs. Results from the case study show that under certain conditions corn stover can be delivered to the cellulosic ethanol biorefinery for $35/dry ton.

David J. Muth, Jr.; Jacob J. Jacobson; Kenneth M. Bryden

2013-08-01T23:59:59.000Z

164

A Dynamic Supply-Demand Model for Electricity Prices Manuela Buzoianu  

E-Print Network (OSTI)

played a role during the crisis period. 1 Introduction The energy industry provides electrical powerA Dynamic Supply-Demand Model for Electricity Prices Manuela Buzoianu , Anthony E. Brockwell of supply and demand equilibrium. The model includes latent supply and demand curves, which may vary over

165

Modeling dynamic substitution processes in energy supply systems  

SciTech Connect

Dynamic substitution processes between energy-conversion techniques are very important phenomena for the restructuring of energy systems. Using the method of synergetics, the authors develop a probabilistic model framework for individual decisions and their effects on the macroscopic configuration of energy supply systems. The derived probability transition rates are associated with socioeconomic parameters that are the basis for individual decisions. The authors state preliminary results of a case study for the room heating of private households in the former West Germany, which are based on a small data sample and a nonrepresentative poll. They find that the number of heating systems of one type, which are already installed, their ease of use, and the cost are the most important parameters for the selection of a new heating system. Using the estimated parameters, they simulate the diffusion of a new type of heating system, which is regarded as better than all the others, into the energy supply system. Its market share will reach 11--18% after 35 years.

Christian, M.; Groscurth, H.M.

1995-05-01T23:59:59.000Z

166

Factors that will influence oil and gas supply and demand in the 21st century  

Science Conference Proceedings (OSTI)

A recent report published by the National Petroleum Council (NPC) in the United States predicted a 50-60% growth in total global demand for energy by 2030. Because oil, gas, and coal will continue to be the primary energy sources during this time, the energy industry will have to continue increasing the supply of these fuels to meet this increasing demand. Achieving this goal will require the exploitation of both conventional and unconventional reservoirs of oil and gas in (including coalbed methane) an environmentally acceptable manner. Such efforts will, in turn, require advancements in materials science, particularly in the development of materials that can withstand high-pressure, high-temperature, and high-stress conditions.

Holditch, S.A.; Chianelli, R.R. [Texas A& amp; M University, College Station, TX (United States)

2008-04-15T23:59:59.000Z

167

Economic benefits of R and D on gas supply technologies. [Unconventioal natural gas resources which are tight sands, Devonian shale, coal seam gas, and gas co-produced with water  

SciTech Connect

Advanced natural gas supply technologies, if successful, could lower the average cost of gas to consumers by 18% and increase the expected gas demand by 2 quads/year by the year 2000. Advanced production techniques for unconventional gas will have by far the greatest impact on future gas prices, providing economic benefits of between $200 billion and $320 billion. Advanced SNG from coal will provide only a $9 billion benefit if unconventional gas meets all of its performance targets. However, higher demand and failure of unconventional gas R and D could raise the benefits of SNG research to $107 billion. SNG research provides a hedge value that increases the likelihood of receiving a positive payoff from gas supply R and D. Changing the performance goals for SNG research to emphasize cost reduction rather than acceleration of the date of commercialization would greatly increase the potential benefits of the program. 9 references, 8 figures, 5 tables.

Darrow, K.G.; Ashby, A.B.; Nesbitt, D.M.; Marshalla, R.A.

1985-01-01T23:59:59.000Z

168

Manhole Event Gas Explosion Modeling  

Science Conference Proceedings (OSTI)

This report provides the second update on work reported in the December 2007 report, Manhole Event Risk Management: Mitigation Strategies (1013886), and the March 2008 report, Manhole Event Gas Explosion Modeling: Phase I (1016476). The report summarizes the status of the software development effort and identifies some unexpected phenomena, difficulties, and explosion characteristics. Theories to explain these phenomena are proposed, and code modifications are outlined that achieve reasonable agreement b...

2008-12-22T23:59:59.000Z

169

Manhole Event Gas Explosion Modeling  

Science Conference Proceedings (OSTI)

This report provides an update on work reported in December 2007 in Manhole Event Risk Management: Mitigation Strategies (EPRI report 1013886). It summarizes software development efforts to model gas-related explosion events in manholes and identifies some unexpected phenomena, difficulties, and explosion characteristics revealed during tests at the Lenox facility. The report proposes theories to explain these phenomena and outlines code modifications to achieve reasonable agreement between computed and ...

2008-03-26T23:59:59.000Z

170

Model for Energy Supply System Alternatives and their General...  

Open Energy Info (EERE)

by analysing cost optimal energy mixes, investment needs and other costs for new infrastructure, energy supply security, energy resource utilization, rate of introduction...

171

Assessing Reliability In Hydrogen Supply Pathways  

E-Print Network (OSTI)

but increasing portion of natural gas supply – As percentagehighly dependent on natural gas supply infrastructure LNGpercentage of natural gas supply Dependence of other systems

McCarthy, Ryan; Ogden, Joan M

2005-01-01T23:59:59.000Z

172

Assessing reliability in energy supply systems  

E-Print Network (OSTI)

Term Prospects for Natural Gas Supply. Energy Informationin coming decades, natural gas supply will increasingly facefunctional zones of natural gas supply, such as reserves and

McCarthy, Ryan W.; Ogden, Joan M.; Sperling, Daniel

2007-01-01T23:59:59.000Z

173

Assessing Reliability in Energy Supply Systems  

E-Print Network (OSTI)

Term Prospects for Natural Gas Supply. Energy Informationin coming decades, natural gas supply will increasingly facefunctional zones of natural gas supply, such as reserves and

McCarthy, Ryan; Ogden, Joan M.; Sperling, Dan

2008-01-01T23:59:59.000Z

174

Model Documentation Report: Natural Gas Transmission and ...  

U.S. Energy Information Administration (EIA)

National Energy Modeling System: An Overview 2009,” DOE/EIA-0581(2009), October 2009. 8 Natural gas exports are also accounted for within the model. January 2013

175

A general water supply planning model: Evaluation of decentralized treatment  

Science Conference Proceedings (OSTI)

Increasing population, diminishing supplies and variable climatic conditions can cause difficulties in meeting water demands; especially in arid regions where water resources are limited. Given the complexity of the system and the interactions among ... Keywords: Decentralized wastewater treatment system, System dynamics, Water conservation, Water supply

G. Chung; K. Lansey; P. Blowers; P. Brooks; W. Ela; S. Stewart; P. Wilson

2008-07-01T23:59:59.000Z

176

Mathematical models of natural gas consumption  

E-Print Network (OSTI)

Mathematical models of natural gas consumption Kristian Sabo, Rudolf Scitovski, Ivan of natural gas consumption Kristian Sabo, Rudolf Scitovski, Ivan Vazler , Marijana Zeki-Susac ksabo of natural gas consumption hourly fore- cast on the basis of hourly movement of temperature and natural gas

Scitovski, Rudolf

177

Oil and Natural Gas Market Supply and Renewable Portfolio Standard Impacts of Selected Provisions of H.R. 3221  

Gasoline and Diesel Fuel Update (EIA)

Oil and Natural Gas Market Supply and Renewable Portfolio Standard Impacts of Selected Provisions of Oil and Natural Gas Market Supply and Renewable Portfolio Standard Impacts of Selected Provisions of H.R. 3221 1 Oil and Natural Gas Market Supply and Renewable Portfolio Standard Impacts of Selected Provisions of H.R. 3221 November 2007 This paper responds to an October 31, 2007, request from Representatives Barton, McCrery, and Young. Their letter, a copy of which is provided as Appendix A, asks the Energy Information Administration (EIA) to assess selected provisions of H.R. 3221, the energy bill adopted by the House of Representatives in early August 2007. EIA was asked to focus on Title VII, dealing with energy on Federal lands; Section 9611, which would establish a Federal renewable portfolio standard (RPS) for certain electricity sellers; and Section 13001, which would eliminate the

178

Conclusion of a Contract for the Supply of Natural Gas for the Prévessin Site between CERN and Gaz-de-France (GDF)  

E-Print Network (OSTI)

Conclusion of a Contract for the Supply of Natural Gas for the Prévessin Site between CERN and Gaz-de-France (GDF)

1991-01-01T23:59:59.000Z

179

Proposal to Negotiate, without Competitive Tendering, a Contract for the Supply of Natural Gas for the Heating Plant on the Meyrin Site  

E-Print Network (OSTI)

Proposal to Negotiate, without Competitive Tendering, a Contract for the Supply of Natural Gas for the Heating Plant on the Meyrin Site

1992-01-01T23:59:59.000Z

180

Proposal to Negotiate, without competitive tendering, the renewal of hte contract for hte supply of natural gas for the heating plant on the Prévessin Site  

E-Print Network (OSTI)

Proposal to Negotiate, without competitive tendering, the renewal of hte contract for hte supply of natural gas for the heating plant on the Prévessin Site

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1  

Science Conference Proceedings (OSTI)

The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. Subsequent chapters of this report provide: an overview of NGTDM; a description of the interface between the NEMS and NGTDM; an overview of the solution methodology of the NGTDM; the solution methodology for the Annual Flow Module; the solution methodology for the Distributor Tariff Module; the solution methodology for the Capacity Expansion Module; the solution methodology for the Pipeline Tariff Module; and a description of model assumptions, inputs, and outputs.

NONE

1998-01-01T23:59:59.000Z

182

Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM-FR)  

E-Print Network (OSTI)

Analyzing water supply in future energy systems using the TIMES Integrated Assessment Model (TIAM is required to maintain water supplies while water is essential to produce energy. However, the models and energy generally dealt with them separately, the two resources are highly interconnected. Energy

183

ORTAP: a nuclear steam supply system simulation for the dynamic analysis of high temperature gas cooled reactor transients  

SciTech Connect

ORTAP was developed to predict the dynamic behavior of the high temperature gas cooled reactor (HTGR) Nuclear Steam Supply System for normal operational transients and postulated accident conditions. It was developed for the Nuclear Regulatory Commission (NRC) as an independent means of obtaining conservative predictions of the transient response of HTGRs over a wide range of conditions. The approach has been to build sufficient detail into the component models so that the coupling between the primary and secondary systems can be accurately represented and so that transients which cover a wide range of conditions can be simulated. System components which are modeled in ORTAP include the reactor core, a typical reheater and steam generator module, a typical helium circulator and circulator turbine and the turbine generator plant. The major plant control systems are also modeled. Normal operational transients which can be analyzed with ORTAP include reactor start-up and shutdown, normal and rapid load changes. Upset transients which can be analyzed with ORTAP include reactor trip, turbine trip and sudden reduction in feedwater flow. ORTAP has also been used to predict plant response to emergency or faulted conditions such as primary system depressurization, loss of primary coolant flow and uncontrolled removal of control poison from the reactor core.

Cleveland, J.C.; Hedrick, R.A.; Ball, S.J.; Delene, J.G.

1977-08-10T23:59:59.000Z

184

Assumptions to the Annual Energy Outlook 2000 - Oil and Gas Supply...  

Annual Energy Outlook 2012 (EIA)

Resources Table 46. Natural Gas Technically Recoverable Resources Alaskan Natural Gas The outlook for natural gas production from the North Slope of Alaska is affected...

185

Frigid weather reduces U.S. natural gas supply - Today in ...  

U.S. Energy Information Administration (EIA)

... imbalance warnings, and other emergency measures. Rolling blackouts in ERCOT. In response to the electricity supply shortage, ERCOT ...

186

Modeling EU electricity market competition using the residual supply index  

Science Conference Proceedings (OSTI)

An econometric approach to related hourly Residual Supply Index to price-cost margins in the major EU electricity generation markets suggests that market structure, as measured by the RSI, is a significant explanatory factor for markups, even when scarcity and other explanatory variables are included. (author)

Swinand, Gregory; Scully, Derek; Ffoulkes, Stuart; Kessler, Brian

2010-11-15T23:59:59.000Z

187

Numerical modeling of well performance in shale gas reservoirs: the impact of fracture spacing on production of adsorbed gas .  

E-Print Network (OSTI)

??Shale gas became an important source of natural gas in the United States and is expected to contribute significantly to worldwide energy supply. This has… (more)

Kalantarli, A.E.

2011-01-01T23:59:59.000Z

188

Agegraphic Chaplygin gas model of dark energy  

E-Print Network (OSTI)

We establish a connection between the agegraphic models of dark energy and Chaplygin gas energy density in non-flat universe. We reconstruct the potential of the agegraphic scalar field as well as the dynamics of the scalar field according to the evolution of the agegraphic dark energy. We also extend our study to the interacting agegraphic generalized Chaplygin gas dark energy model.

Ahmad Sheykhi

2010-02-07T23:59:59.000Z

189

A General Simulation Framework for Supply Chain Modeling: State of the Art and Case Study  

E-Print Network (OSTI)

Nowadays there is a large availability of discrete event simulation software that can be easily used in different domains: from industry to supply chain, from healthcare to business management, from training to complex systems design. Simulation engines of commercial discrete event simulation software use specific rules and logics for simulation time and events management. Difficulties and limitations come up when commercial discrete event simulation software are used for modeling complex real world-systems (i.e. supply chains, industrial plants). The objective of this paper is twofold: first a state of the art on commercial discrete event simulation software and an overview on discrete event simulation models development by using general purpose programming languages are presented; then a Supply Chain Order Performance Simulator (SCOPS, developed in C++) for investigating the inventory management problem along the supply chain under different supply chain scenarios is proposed to readers.

Cimino, Antonio; Mirabelli, Giovanni

2010-01-01T23:59:59.000Z

190

Worldwide Natural Gas Supply and Demand and the Outlook for Global ...  

U.S. Energy Information Administration (EIA)

Liquefied natural gas (LNG) is a proven commercial technology for transporting natural gas across oceans. The international trade in LNG is more than 30 years old.

191

Improving the resiliency of the natural gas supply and distribution network .  

E-Print Network (OSTI)

??To accommodate the nationâ s escalating demand for natural gas, which is expected to increase 700% by 2030, the natural gas industry will likely build… (more)

Nadeau, John P.

2007-01-01T23:59:59.000Z

192

Coordinated inventory models with compensation policy in a three level supply chain  

Science Conference Proceedings (OSTI)

In this paper, we develop inventory models for the three level supply chain (one supplier, one warehouse, and one retailer) and consider the problem of determining the optimal integer multiple n of time interval, time interval between successive ...

Jeong Hun Lee; Il Kyeong Moon

2006-05-01T23:59:59.000Z

193

Gas Supply Outlook - Gauging Wellhead Deliverability Now and in the Future: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

While developers are postponing or cutting back plans for new natural gas-fired plants, the next few years will record additions of gas-fired capacity. Over the long term, this growth is expected to continue, causing a 30 percent increase in U.S. natural gas demand by 2015. Are there any limits to the U.S. "dash to gas"? Extraordinarily high gas prices during the winter of 2000-01 offered a warning. The current study investigates the availability of natural gas, asking what is reasonable to expect.

2002-02-12T23:59:59.000Z

194

EIA - The National Energy Modeling System: An Overview 2003-Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Transmission and Distribution Module Natural Gas Transmission and Distribution Module The National Energy Modeling System: An Overview 2003 Natural Gas Transmission and Distribution Module Figure 15. Natural Gas Transmission and Distribution Module Structure. Need help, contact the National Energy Information Center at 202-586-8800. Figure 16. Natural Gas Transmission and distribution Module Network. Need help, contact the National Energy Information Center at 202-586-8800. Natural Gas Transmission and distribution Module Table. Need help, contact the National Energy Information Center at 202-586-8800. The natural gas transmission and distribution module (NGTDM) of NEMS represents the natural gas market and determines regional market–clearing prices for natural gas supplies and for end–use consumption, given the

195

Simple Cosmological Model with Relativistic Gas  

E-Print Network (OSTI)

We construct simple and useful approximation for the relativistic gas of massive particles. The equation of state is given by an elementary function and admits analytic solution of the Friedmann equation, including more complex cases when the relativistic gas of massive particles is considered together with radiation or with dominating cosmological constant. The model of relativistic gas may be interesting for the description of primordial Universe, especially as a candidate for the role of a Dark Matter.

Guilherme de Berredo-Peixoto; Ilya L. Shapiro; Flavia Sobreira

2004-12-11T23:59:59.000Z

196

The National Energy Modeling System: An Overview 2000 - Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

natural gas transmission and distribution module (NGTDM) of NEMS represents the natural gas market and determines regional market-clearing prices for natural gas supplies and for end-use consumption, given the information passed from other NEMS modules. A transmission and distribution network (Figure 15), composed of nodes and arcs, is used to simulate the interregional flow and pricing of gas in the contiguous United States and Canada in both the peak (December through March) and offpeak (April through November) period. This network is a simplified representation of the physical natural gas pipeline system and establishes the possible interregional flows and associated prices as gas moves from supply sources to end users. natural gas transmission and distribution module (NGTDM) of NEMS represents the natural gas market and determines regional market-clearing prices for natural gas supplies and for end-use consumption, given the information passed from other NEMS modules. A transmission and distribution network (Figure 15), composed of nodes and arcs, is used to simulate the interregional flow and pricing of gas in the contiguous United States and Canada in both the peak (December through March) and offpeak (April through November) period. This network is a simplified representation of the physical natural gas pipeline system and establishes the possible interregional flows and associated prices as gas moves from supply sources to end users. Figure 15. Natural Gas Transmission and Distribution Module Network

197

A Game-Dynamic Model of Gas Transportation Routes and Its Application . . .  

E-Print Network (OSTI)

The purpose of this paper is to study an optimal structure of a system of international gas pipelines competing for a gas market. We develop a game-dynamic model of the operation of several interacting gas pipeline projects with project owners acting as players in the game. The model treats the projects' commercialization times as major players' controls. Current quantities of gas supply are modeled as approximations to Nash equilibrium points in instantaneous "gas supply games", in which each player maximizes his/her current netprofit due to the sales of gas. We use the model to analyze the Turkish gas market, on which gas routes originating from Russia, Turkmenistan and Iran are competing. The analysis is carried out in three steps. At step 1, we model the operation of the pipelines as planned and estimate the associated profits. At step 2, we optimize individual projects, with respect to their profits, assuming that the other pipelines operate as planned. At step 3, we find numerical Nash equilibrium commercialization policies for the entire group of the pipelines. The simulations show the degrees to which the planned regimes are not optimal compared to the Nash equilibrium ones. Another observation is that in equilibrium regimes the pipelines are not always being run at their full capacities, which implies that the proposed pipeline capacities might not be optimal. The simulation results turn out to be moderately sensitive to changes in the discount rate and highly sensitive to changes in the price elasticity of gas demand.

Ger Klaassen; Ivan Matrosov; Alexander Roehrl; Alexander Tarasyev; Arkadii Kryazhimskii

2003-01-01T23:59:59.000Z

198

Discrete, recursive supply chain model for solar panel manufacturing  

E-Print Network (OSTI)

A computer model to optimize global expansion of the production of solar panels is presented. The model is modular, extensible, and fast compared to existing specialized optimization software which use integer linear ...

Páez, Daýan

2010-01-01T23:59:59.000Z

199

Can Deployment of Renewable Energy and Energy Efficiency Put Downward Pressure on Natural Gas Prices  

E-Print Network (OSTI)

Supply Models of Natural Gas. ” The Bell Journal ofCalifornia’s Reliance on Natural Gas. Santa Monica, Calif. :Forum (EMF). 2003. Natural Gas, Fuel Diversity and North

Wiser, Ryan; Bolinger, Mark

2005-01-01T23:59:59.000Z

200

,"U.S. Natural Gas Annual Supply and Disposition Balance"  

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

Annual Supply and Disposition Balance" Annual Supply and Disposition Balance" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Supply",5,"Annual",2012,"6/30/1930" ,"Data 2","Disposition",5,"Annual",2012,"6/30/1930" ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","ng_sum_snd_dcu_nus_a.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/ng/ng_sum_snd_dcu_nus_a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

emissions rate from natural gas supply that occurs upstreamassociated with natural gas supply to the power plant weresuggest natural gas-fired power plants will supply

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

202

Modeling well performance in compartmentalized gas reservoirs  

E-Print Network (OSTI)

Predicting the performance of wells in compartmentalized reservoirs can be quite challenging to most conventional reservoir engineering tools. The purpose of this research is to develop a Compartmentalized Gas Depletion Model that applies not only to conventional consolidated reservoirs (with constant formation compressibility) but also to unconsolidated reservoirs (with variable formation compressibility) by including geomechanics, permeability deterioration and compartmentalization to estimate the OGIP and performance characteristics of each compartment in such reservoirs given production data. A geomechanics model was developed using available correlation in the industry to estimate variable pore volume compressibility, reservoir compaction and permeability reduction. The geomechanics calculations were combined with gas material balance equation and pseudo-steady state equation and the model was used to predict well performance. Simulated production data from a conventional gas Simulator was used for consolidated reservoir cases while synthetic data (generated by the model using known parameters) was used for unconsolidated reservoir cases. In both cases, the Compartmentalized Depletion Model was used to analyze data, and estimate the OGIP and Jg of each compartment in a compartmentalized gas reservoir and predict the subsequent reservoir performance. The analysis was done by history-matching gas rate with the model using an optimization technique. The model gave satisfactory results with both consolidated and unconsolidated reservoirs for single and multiple reservoir layers. It was demonstrated that for unconsolidated reservoirs, reduction in permeability and reservoir compaction could be very significant especially for unconsolidated gas reservoirs with large pay thickness and large depletion pressure.

Yusuf, Nurudeen

2007-12-01T23:59:59.000Z

203

Project Title Economic Modeling & Unconventional Gas Resource Appraisal Program Line Tough Gas  

E-Print Network (OSTI)

support to assess the economic viability of new tough gas plays (tight gas, shale gas, CBM). Project are illustrated using the US shale gas plays as case templates. Discounted cash flow models are applied1 Project Title Economic Modeling & Unconventional Gas Resource Appraisal Program Line Tough Gas

Santos, Juan

204

The United Kingdom’s natural gas supply mix is changing - Today ...  

U.S. Energy Information Administration (EIA)

LNG's role, however, has grown significantly since then. At times, LNG deliveries in the U.K. have provided up to 4 Bcf/d of total supply and accounted for 20% of ...

205

Natural Gas Prices Forecast Comparison--AEO vs. Natural Gas Markets  

E-Print Network (OSTI)

coal supply. The natural gas supply covers six categories:renewables, oil supply, natural gas supply, natural gasnation-wide natural gas market, equalizing supply with

Wong-Parodi, Gabrielle; Lekov, Alex; Dale, Larry

2005-01-01T23:59:59.000Z

206

World Energy Projection System Plus Model Documentation: Natural Gas Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Natural Gas Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

207

Gas network model allows full reservoir coupling  

Science Conference Proceedings (OSTI)

The gas-network flow model (Gasnet) developed for and added to an existing Qatar General Petroleum Corp. (OGPC) in-house reservoir simulator, allows improved modeling of the interaction among the reservoir, wells, and pipeline networks. Gasnet is a three-phase model that is modified to handle gas-condensate systems. The numerical solution is based on a control volume scheme that uses the concept of cells and junctions, whereby pressure and phase densities are defined in cells, while phase flows are defined at junction links. The model features common numerical equations for the reservoir, the well, and the pipeline components and an efficient state-variable solution method in which all primary variables including phase flows are solved directly. Both steady-state and transient flow events can be simulated with the same tool. Three test cases show how the model runs. One case simulates flow redistribution in a simple two-branch gas network. The second simulates a horizontal gas well in a waterflooded gas reservoir. The third involves an export gas pipeline coupled to a producing reservoir.

Methnani, M.M. [Qatar General Petroleum Corp., Doha (Qatar)

1998-02-23T23:59:59.000Z

208

Modeling the national chlorinated hydrocarbon supply chain and effects of disruption.  

SciTech Connect

Chlorinated hydrocarbons represent the precursors for products ranging from PVC and refrigerants to pharmaceuticals. Natural or manmade disruptions that affect the availability of these products nationally have the potential to affect a wide range of markets, from healthcare to construction. Sandia National Laboratories (Sandia) has developed datasets and models that allow the analysis of the interdependencies within the chlorine chemical supply chain and consequences of disruptions. Combining data on plant locations, transportation, utilities, and the chemical supply chain itself, with modeling tools such as N-ABLE, a Sandia-developed agent based modeling system, allows Sandia to model this complex system dynamically. Sandia has used the N-ABLE technology to simulate a disruption to the chlorinated hydrocarbon supply chain caused by a hurricane striking the Louisiana coast. This paper presents results and conclusions from this analysis.

Sun, Amy Cha-Tien; Downes, Paula Sue; Blair, Angela S. (United States Department of Homeland Security Science & Technology Directorate); Welk, Margaret Ellen

2010-03-01T23:59:59.000Z

209

Modelling the South African fresh fruit export supply chain  

E-Print Network (OSTI)

apply the model to Permian and Triassic communities of the Karoo Basin, South Africa, and show Keywords: mass extinction; end-Permian extinction; Karoo Basin; food webs; extinction cascades 1 Palaeozoic and Early Mesozoic of the Beaufort Group, Karoo Basin, South Africa: the Middle Permian

van Vuuren, Jan H.

210

A supply forecasting model for Zimbabwe's corn sector: a time series and structural analysis  

E-Print Network (OSTI)

The Zimbabwean government utilizes the corn supply forecasts to establish producer prices for the following growing season, estimate corn storage and handling costs, project corn import needs and associated costs, and to assess the Grain Marketing Board's financial resource needs. Thus, the corn supply forecasts are important information used by the government for contingency planning, decision-making, policy-formulation and implementation. As such, the need for accurate forecasts is obvious. The objectives of the study are: (a) determine how changes in the government-established producer price affects the quantity of corn supplied to the Grain Marketing Board by the large-scale corn-producing sector and (b) whether including rainfall or rainfall probabilities into econometric models would result in an improvement of corn supply forecasts compared to current forecasts by the government. In order to accomplish the first objective a supply elasticity model was specified and estimated using ordinary least squares. This model is intended to provide 'de insight to the government regarding the influence of the government-established corn price and other related variables on corn supplied to the Grain Marketing Board by the large-scale producers. Thus, the estimated model would be useful to the government when establishing corn prices in March/April for production in the following growing season (October - February). To achieve the second objective, preliminary analysis was carried out to verify whether there is statistical evidence to support the hypothesis that rainfall cause" corn production and supply, and also corn prices and sales. Specifically the preliminary analysis involved using the Granger causality tests, stationarity tests and innovation accounting (impulse responses and forecast error decomposition). Having verified and quantified the causal effects of rainfall on corn production and supply, the next task was to investigate whether including rainfall and/or drought probabilities into forecasting econometric models would help provide improved out-of-sample forecasts compared to the government's forecasts. The forecasting accuracy of the models (short-run) was evaluated using standard statistical measures such as, the mean square error (MSE), mean absolute percentage error (MAPEI), improved mean absolute percentage error (IMAPE) and Theil's U-statistic, and thereupon select the best model. The results indicated that by incorporating rainfall and/or rainfall probabilities into econometric forecasting models, there was substantial improvement in corn supply forecasts. It follows that the the government would likely find it beneficial to incorporate the rainfall variable into their forecasting effort.

Makaudze, Ephias

1993-01-01T23:59:59.000Z

211

The Agricultural Sector and Greenhouse Gas Mitigation Model (ASMGHG)  

E-Print Network (OSTI)

The Agricultural Sector and Greenhouse Gas Mitigation Model (ASMGHG) Uwe A. Schneider Bruce A. Mc Sector and Greenhouse Gas Mitigation Model (ASMGHG Taxes and Sequestration Subsidies...............................66 3.8.2.4 Special Greenhouse Gas

McCarl, Bruce A.

212

Performance Evaluation of Dense Gas Dispersion Models  

Science Conference Proceedings (OSTI)

This paper summarizes the results of a study to evaluate the performance of seven dense gas dispersion models using data from three field experiments. Two models (DEGADIS and SLAB) are in the public domain and the other five (AIRTOX, CHARM, FOCUS,...

Jawad S. Touma; William M. Cox; Harold Thistle; James G. Zapert

1995-03-01T23:59:59.000Z

213

Short-Term Supply Chain Management in Upstream Natural Gas Systems  

E-Print Network (OSTI)

Consumers LNG Tanker Fleet Regasification Terminals LNGStorage Storage (Long,medium,short-term) Inter. LNG tankers unload the liquid at LNG termi- nals (also called regasification terminals). LNG it to markets or supplied directly to bulk consumers. LNG regasification terminals may also have storage

Barton, Paul I.

214

Combustion modeling in advanced gas turbine systems  

DOE Green Energy (OSTI)

Goal of DOE`s Advanced Turbine Systems program is to develop and commercialize ultra-high efficiency, environmentally superior, cost competitive gas turbine systems for base-load applications in utility, independent power producer, and industrial markets. Primary objective of the program here is to develop a comprehensive combustion model for advanced gas turbine combustion systems using natural gas (coal gasification or biomass fuels). The efforts included code evaluation (PCGC-3), coherent anti-Stokes Raman spectroscopy, laser Doppler anemometry, and laser-induced fluorescence.

Smoot, L.D.; Hedman, P.O.; Fletcher, T.H.; Brewster, B.S.; Kramer, S.K. [Brigham Young Univ., Provo, UT (United States). Advanced Combustion Engineering Research Center

1995-12-31T23:59:59.000Z

215

Modeling the motion of a hot, turbulent gas  

Science Conference Proceedings (OSTI)

Keywords: animation, convection, gas simulations, gaseous phenomena, physics-based modeling, smoke, steam, turbulent flow

Nick Foster; Dimitris Metaxas

1997-08-01T23:59:59.000Z

216

Development of the Integrated Biomass Supply Analysis and Logistics Model (IBSAL)  

DOE Green Energy (OSTI)

The Integrated Biomass Supply & Logistics (IBSAL) model is a dynamic (time dependent) model of operations that involve collection, harvest, storage, preprocessing, and transportation of feedstock for use at a biorefinery. The model uses mathematical equations to represent individual unit operations. These unit operations can be assembled by the user to represent the working rate of equipment and queues to represent storage at facilities. The model calculates itemized costs, energy input, and carbon emissions. It estimates resource requirements and operational characteristics of the entire supply infrastructure. Weather plays an important role in biomass management and thus in IBSAL, dictating the moisture content of biomass and whether or not it can be harvested on a given day. The model calculates net biomass yield based on a soil conservation allowance (for crop residue) and dry matter losses during harvest and storage. This publication outlines the development of the model and provides examples of corn stover harvest and logistics.

Sokhansanj, Shahabaddine [ORNL; Webb, Erin [ORNL; Turhollow Jr, Anthony F [ORNL

2008-06-01T23:59:59.000Z

217

Structuring energy supply and demand networks in a general equilibrium model to simulate global warming control strategies  

Science Conference Proceedings (OSTI)

Global warming control strategies which mandate stringent caps on emissions of greenhouse forcing gases can substantially alter a country's demand, production, and imports of energy products. Although there is a large degree of uncertainty when attempting to estimate the potential impact of these strategies, insights into the problem can be acquired through computer model simulations. This paper presents one method of structuring a general equilibrium model, the ENergy and Power Evaluation Program/Global Climate Change (ENPEP/GCC), to simulate changes in a country's energy supply and demand balance in response to global warming control strategies. The equilibrium model presented in this study is based on the principle of decomposition, whereby a large complex problem is divided into a number of smaller submodules. Submodules simulate energy activities and conversion processes such as electricity production. These submodules are linked together to form an energy supply and demand network. Linkages identify energy and fuel flows among various activities. Since global warming control strategies can have wide reaching effects, a complex network was constructed. The network represents all energy production, conversion, transportation, distribution, and utilization activities. The structure of the network depicts interdependencies within and across economic sectors and was constructed such that energy prices and demand responses can be simulated. Global warming control alternatives represented in the network include: (1) conservation measures through increased efficiency; and (2) substitution of fuels that have high greenhouse gas emission rates with fuels that have lower emission rates. 6 refs., 4 figs., 4 tabs.

Hamilton, S.; Veselka, T.D.; Cirillo, R.R.

1991-01-01T23:59:59.000Z

218

Gas  

Science Conference Proceedings (OSTI)

... Implements a gas based on the ideal gas law. It should be noted that this model of gases is niave (from many perspectives). ...

219

Resource planning for gas utilities: Using a model to analyze pivotal issues  

Science Conference Proceedings (OSTI)

With the advent of wellhead price decontrols that began in the late 1970s and the development of open access pipelines in the 1980s and 90s, gas local distribution companies (LDCs) now have increased responsibility for their gas supplies and face an increasingly complex array of supply and capacity choices. Heretofore this responsibility had been share with the interstate pipelines that provide bundled firm gas supplies. Moreover, gas supply an deliverability (capacity) options have multiplied as the pipeline network becomes increasing interconnected and as new storage projects are developed. There is now a fully-functioning financial market for commodity price hedging instruments and, on interstate Pipelines, secondary market (called capacity release) now exists. As a result of these changes in the natural gas industry, interest in resource planning and computer modeling tools for LDCs is increasing. Although in some ways the planning time horizon has become shorter for the gas LDC, the responsibility conferred to the LDC and complexity of the planning problem has increased. We examine current gas resource planning issues in the wake of the Federal Energy Regulatory Commission`s (FERC) Order 636. Our goal is twofold: (1) to illustrate the types of resource planning methods and models used in the industry and (2) to illustrate some of the key tradeoffs among types of resources, reliability, and system costs. To assist us, we utilize a commercially-available dispatch and resource planning model and examine four types of resource planning problems: the evaluation of new storage resources, the evaluation of buyback contracts, the computation of avoided costs, and the optimal tradeoff between reliability and system costs. To make the illustration of methods meaningful yet tractable, we developed a prototype LDC and used it for the majority of our analysis.

Busch, J.F.; Comnes, G.A.

1995-11-01T23:59:59.000Z

220

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models  

E-Print Network (OSTI)

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models Saif Benjaafar1, we illustrate how carbon emission concerns could be integrated into operational decision-making with regard to procurement, production, and inventory management. We show how, by associating carbon emission

Benjaafar, Saifallah

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Greenhouse Gas Training Program for Inventory and Mitigation Modeling |  

Open Energy Info (EERE)

Greenhouse Gas Training Program for Inventory and Mitigation Modeling Greenhouse Gas Training Program for Inventory and Mitigation Modeling Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Greenhouse Gas Training Program for Inventory and Mitigation Modeling Agency/Company /Organization: Future Perfect Sector: Climate Focus Area: GHG Inventory Development, Greenhouse Gas Topics: GHG inventory, Low emission development planning, -LEDS Resource Type: Case studies/examples, Training materials Website: www.gpstrategiesltd.com/divisions/future-perfect/ Country: South Korea Eastern Asia Language: English References: Greenhouse Gas Training Program for Inventory and Mitigation Modeling[1] Logo: Greenhouse Gas Training Program for Inventory and Mitigation Modeling Jointly sponsored by Greenhouse Gas Inventory & Research (GIR) Center of

222

Production Cost Modeling of Cogenerators in an Interconnected Electric Supply System  

E-Print Network (OSTI)

The Optimal State Electricity Supply System in Texas (OSEST) research project is part of the continuing Public Utility Commission of Texas (PUCT) effort to identify possible improvements in the production, transmission, and use of electricity in the state. The OSEST project is designed to identify the general configuration of the optimal electric supply system resulting from coordinated system planning and operation from a statewide perspective. The Optimized Generation Planning Program (OGP) and Multi-Area Production Simulation Program with Megawatt Flow (MAPS/MWFLOW) are two computer programs developed by General Electric that are being used in the study. Both of these programs perform production costing calculations to evaluate the performance of various electric supply system configurations necessary to appropriately model the present and future cogeneration activity in the service areas of the electric utilities that compose the Electric Reliability Council of Texas (ERCOT).

Ragsdale, K.

1989-09-01T23:59:59.000Z

223

Natural gas production problems : solutions, methodologies, and modeling.  

Science Conference Proceedings (OSTI)

Natural gas is a clean fuel that will be the most important domestic energy resource for the first half the 21st centtuy. Ensuring a stable supply is essential for our national energy security. The research we have undertaken will maximize the extractable volume of gas while minimizing the environmental impact of surface disturbances associated with drilling and production. This report describes a methodology for comprehensive evaluation and modeling of the total gas system within a basin focusing on problematic horizontal fluid flow variability. This has been accomplished through extensive use of geophysical, core (rock sample) and outcrop data to interpret and predict directional flow and production trends. Side benefits include reduced environmental impact of drilling due to reduced number of required wells for resource extraction. These results have been accomplished through a cooperative and integrated systems approach involving industry, government, academia and a multi-organizational team within Sandia National Laboratories. Industry has provided essential in-kind support to this project in the forms of extensive core data, production data, maps, seismic data, production analyses, engineering studies, plus equipment and staff for obtaining geophysical data. This approach provides innovative ideas and technologies to bring new resources to market and to reduce the overall environmental impact of drilling. More importantly, the products of this research are not be location specific but can be extended to other areas of gas production throughout the Rocky Mountain area. Thus this project is designed to solve problems associated with natural gas production at developing sites, or at old sites under redevelopment.

Rautman, Christopher Arthur; Herrin, James M.; Cooper, Scott Patrick; Basinski, Paul M. (El Paso Production Company, Houston, TX); Olsson, William Arthur; Arnold, Bill Walter; Broadhead, Ronald F. (New Mexico Bureau of Geology and Mineral Resources, Socorro, NM); Knight, Connie D. (Consulting Geologist, Golden, CO); Keefe, Russell G.; McKinney, Curt (Devon Energy Corporation, Oklahoma City, OK); Holm, Gus (Vermejo Park Ranch, Raton, NM); Holland, John F.; Larson, Rich (Vermejo Park Ranch, Raton, NM); Engler, Thomas W. (New Mexico Institute of Mining and Technology, Socorro, NM); Lorenz, John Clay

2004-10-01T23:59:59.000Z

224

Primer on gas integrated resource planning  

Science Conference Proceedings (OSTI)

This report discusses the following topics: gas resource planning: need for IRP; gas integrated resource planning: methods and models; supply and capacity planning for gas utilities; methods for estimating gas avoided costs; economic analysis of gas utility DSM programs: benefit-cost tests; gas DSM technologies and programs; end-use fuel substitution; and financial aspects of gas demand-side management programs.

Goldman, C.; Comnes, G.A.; Busch, J.; Wiel, S. [Lawrence Berkeley Lab., CA (United States)

1993-12-01T23:59:59.000Z

225

Cooling supply system for stage 3 bucket of a gas turbine  

DOE Patents (OSTI)

In a land based gas turbine including a compressor, a combustor and turbine section including at least three stages, an improvement comprising an inlet into a third stage nozzle from the compressor for feeding cooling air from the compressor to the third stage nozzle; at least one passageway running substantially radially through each airfoil of the third stage nozzle and an associated diaphragm, into an annular space between the rotor and the diaphragm; and passageways communicating between the annular space and individual buckets of the third stage.

Eldrid, Sacheverel Quentin (Saratoga Springs, NY); Burns, James Lee (Schenectady, NY); Palmer, Gene David (Clifton Park, NY); Leone, Sal Albert (Scotia, NY); Drlik, Gary Joseph (Fairfield, OH); Gibler, Edward Eugene (Cincinnati, OH)

2002-01-01T23:59:59.000Z

226

The Cost of Improving Gas Supply Security in the Baltic States  

E-Print Network (OSTI)

with Estonian Competition Authority (Konkurentsamiet). 27 Based on an energy amount of 123TJ to replace natural gas fired heat in one day, an oil truck capable of carrying 14,300Kg, a calorific value of light fuel oil of 38.68GJ/1.0017m3 and a density of 980... by the geographical concentration of the oil processing and electricity generation industry. Source: authors’ phone interviews with energy industry and energy regulatory agency representatives in Finland and Singapore. HEAT GENERATION AND FUEL INPUT Heat demand for one "peak" day (TJ...

Noel, Pierre; Findlater, Sachi; Chyong, Chi Kong

2012-01-23T23:59:59.000Z

227

Gas Storage for Power Generation -- Critical New Bridge Between Power Demand and Gas Supply: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

Natural gas storage is a "sleeper" issue for the power industry that will demand a great deal of attention very soon as the building boom of gas-fired capacity draws to a close and these plants begin to operate. While an entire industry has emerged in recent years to develop high-deliverability gas storage, the new facilities are likely the tip of an iceberg. Pipelines will be taxed to meet fluctuating requirements of new units, and companies will turn to gas storage for reliability at an affordable cost...

2002-11-11T23:59:59.000Z

228

Updated U.S. Geothermal Supply Characterization and Representation for Market Penetration Model Input  

NLE Websites -- All DOE Office Websites (Extended Search)

Updated U.S. Geothermal Updated U.S. Geothermal Supply Characterization and Representation for Market Penetration Model Input C. Augustine Technical Report NREL/TP-6A20-47459 October 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Updated U.S. Geothermal Supply Characterization and Representation for Market Penetration Model Input C. Augustine Prepared under Task No. GT09.3002 Technical Report NREL/TP-6A20-47459 October 2011 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

229

Work Costs and Nonconvex Preferences in the Estimation of Labor Supply Models  

E-Print Network (OSTI)

We first critique the manner in which work costs have been introduced into labor supply estimation, and note the difficulty of incorporating a realistic rendering of the costs of work. We then show that, if work costs are not acounted for in the budget and time constraints in a structural labor supply model, they will be subsumed into the data generating preferences. We show that even if underlying preferences over consumption and leisure are convex, the presence of unobservable work costs can make these preferences appear nonconvex. Absent strong functional form assumptions, these work costs are not identified in data commonly used for labor supply estimation. However, we show that even if work costs cannot be separately identified, policy relevant calculations, such as estimates of the effect of tax changes on labor supply and deadweight loss calculations, are not affected by the fact that estimated preferences incorporate work costs. We would like to thank Joe Altonji and Chris Taber for valuable conversations, and seminar participants

Bradley T. Heim; Bruce D. Meyer

2004-01-01T23:59:59.000Z

230

Settlement Prediction, Gas Modeling and Slope Stability Analysis  

E-Print Network (OSTI)

Settlement Prediction, Gas Modeling and Slope Stability Analysis in Coll CardĂşs Landfill Li Yu using mechanical models Simulation of gas generation, transport and extraction in MSW landfill 1 models Simulation of gas generation, transport and extraction in MSW landfill 1) Analytical solution

Politècnica de Catalunya, Universitat

231

PRISM 2.0: Modeling Technology Learning for Electricity Supply Technologies  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) developed the U.S. Regional Economy, Greenhouse Gas, and Energy (US-REGEN) model, under the PRISM 2.0 Project. This model can assess the impact of various climate, energy, and environmental policies on the electric power sector, the energy system, and the overall U.S. economy.  This report compares the technology learning rates implied by the exogenous cost specifications used in the US-REGEN model to those found in a literature ...

2013-09-19T23:59:59.000Z

232

Assessing Reliability in Transportation Energy Supply Pathways: A Hydrogen Case Study  

E-Print Network (OSTI)

term prospects for natural gas supply. Washington DC: SR/worldwide, subjecting natural gas supply to many of the samenatural gas and petroleum infrastructure: (1) primary energy supply, (

McCarthy, Ryan; Ogden, Joan M

2005-01-01T23:59:59.000Z

233

Nonlinear Dynamics in an OLG Growth Model with Young and Old Age Labour Supply: The Role of Public Health Expenditure  

Science Conference Proceedings (OSTI)

This study analyses the dynamics of a two-dimensional overlapping generations economy with young and old age labour supply. We show that the public provision of investments in health, which, in turn, affects the demand for material consumption of the ... Keywords: C62, C68, Chaos, I18, J22, Labour supply, O41, OLG model, Public health expenditure

Luca Gori; Mauro Sodini

2011-10-01T23:59:59.000Z

234

Gas transport model for chemical vapor infiltration  

Science Conference Proceedings (OSTI)

A node-bond percolation model is presented for the gas permeability and pore surface area of the coarse porosity in woven fiber structures during densification by chemical vapor infiltration (CVI). Model parameters include the number of nodes per unit volume and their spatial distribution, and the node and bond radii and their variability. These parameters relate directly to structural features of the weave. Some uncertainty exists in the proper partition of the porosity between ``node`` and ``bond`` and between intra-tow and inter-tow, although the total is constrained by the known fiber loading in the structure. Applied to cloth layup preforms the model gives good agreement with the limited number of available measurements.

Starr, T.L. [School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (United States)

1995-09-01T23:59:59.000Z

235

A supply-demand model for OPEC oil-pricing policies  

SciTech Connect

OPEC and its pricing policies have been subjected to constant international attention as well as criticism since 1973. Consumers find OPEC behavior irrational, while OPEC tries to justify its policies as rational and in accordance with the realities of the international oil market. The focus of this study is to contribute toward an analytical and empirical work on OPEC pricing behavior, and highlight the various factors believed to affect the future oil policies of OPEC member countries. After a survey of literature on the theoretical framework of world oil models in general, and OPEC models in particular, a linear econometric model for pricing OPEC oil is formulated which is a supply-demand equilibrium model comprising of supply, demand, and inflation-rate functions. Estimation of the behavioral equations are carried out by Ordinary and Two-Stage Least Square estimators. Econometric results from the estimation and simulation of the model seem to indicate that OPEC's pricing behavior is market-responsive and may best be explained by employing the theoretical framework of market-equilibrium condition.

Heiat, N.

1988-01-01T23:59:59.000Z

236

SPINTHIR: An ignition model for gas turbines  

E-Print Network (OSTI)

(for both laminar and turbulent flames) and some of the findings are reviewed in Ref. [1] and, for sprays in particular, in Ref. [2]. A physics-based model with low computational cost was presented in Ref. [3] that aimed at estimating the growth of a... . is a constant taken equal to 2.0 [9]. Knowledge of ?~ ?C p? enables the calculation of and in turn of . The computation of the laminar flame speed as a function of the local mixture fraction for a gas flame is trivial, while in a spray is more...

Neophytou, A; Mastorakos, E

2012-08-28T23:59:59.000Z

237

Experimental Study of Main Gas Ingestion and Purge Gas Egress Flow in Model Gas Turbine Stages.  

E-Print Network (OSTI)

??Efficient performance of gas turbines depends, among several parameters, on the mainstream gas entry temperature. At the same time, transport of this high temperature gas… (more)

Balasubramanian, Jagdish Harihara

2010-01-01T23:59:59.000Z

238

Atomistic modeling of gas adsorption in nanocarbons  

Science Conference Proceedings (OSTI)

Carbon nanostructures are currently under investigation as possible ideal media for gas storage and mesoporous materials for gas sensors. The recent scientific literature concerning gas adsorption in nanocarbons, however, is affected by a significant ...

G. Zollo, F. Gala

2012-01-01T23:59:59.000Z

239

Multiscale Modelling of Single Crystal Superalloys for Gas Turbine Blades  

E-Print Network (OSTI)

Multiscale Modelling of Single Crystal Superalloys for Gas Turbine Blades PROEFSCHRIFT ter Multiscale Modelling of Single Crystal Superalloys for Gas Turbine Blades / by Tiedo Tinga. ­ Eindhoven accumulation 120 5.5 Application 121 5.6 Summary and conclusions 128 6. Application to gas turbine parts 131 6

240

Multivariable model predictive control for a gas turbine power plant  

Science Conference Proceedings (OSTI)

In this brief, constrained multi variable model predictive control (MPC) strategy is investigated for a GE9001E gas turbine power plant. So the rotor speed and exhaust gas temperature are controlled manipulating the fuel command and compressor inlet ... Keywords: ARX, gas turbine, identification, modeling, multivariable control, power plant, predictive control

Hadi Ghorbani; Ali Ghaffari; Mehdi Rahnama

2008-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Capacity modelling of the coal value chain at Sasol coal supply  

Science Conference Proceedings (OSTI)

Sasol, a petrochemical company in the Republic of South Africa, uses coal to produce oil and chemical products. The coal is mined in the area surrounding the Sasol plants and is transported with conveyor belts to the stockpiles at the gas production ... Keywords: coal conveyor simulation, modelling

Marthi Harmse; Johan Janse v Rensburg

2007-05-01T23:59:59.000Z

242

Rock-physics Models for Gas-hydrate Systems Associated  

E-Print Network (OSTI)

at Austin, Austin, Texas, U.S.A. ABSTRACT R ock-physics models are presented describing gas-hydrate systems. Knapp, and R. Boswell, eds., Natural gas hydrates--Energy resource potential and associated geologic

Texas at Austin, University of

243

Model Documentation Report: International Natural Gas Model 2011  

U.S. Energy Information Administration (EIA)

gas-to-liquid (GTL) plants, ... • Natural gas production for five resource categories, ... while LNG contracts may constrain trade in

244

Evaluation of the gas production economics of the gas hydrate cyclic thermal injection model  

SciTech Connect

The objective of the work performed under this directive is to assess whether gas hydrates could potentially be technically and economically recoverable. The technical potential and economics of recovering gas from a representative hydrate reservoir will be established using the cyclic thermal injection model, HYDMOD, appropriately modified for this effort, integrated with economics model for gas production on the North Slope of Alaska, and in the deep offshore Atlantic. The results from this effort are presented in this document. In Section 1, the engineering cost and financial analysis model used in performing the economic analysis of gas production from hydrates -- the Hydrates Gas Economics Model (HGEM) -- is described. Section 2 contains a users guide for HGEM. In Section 3, a preliminary economic assessment of the gas production economics of the gas hydrate cyclic thermal injection model is presented. Section 4 contains a summary critique of existing hydrate gas recovery models. Finally, Section 5 summarizes the model modification made to HYDMOD, the cyclic thermal injection model for hydrate gas recovery, in order to perform this analysis.

Kuuskraa, V.A.; Hammersheimb, E.; Sawyer, W.

1985-05-01T23:59:59.000Z

245

Forecasting Natural Gas Prices Using Time Series Models .  

E-Print Network (OSTI)

??The objective of this thesis is to estimate the natural gas component of the All Urban Consumer Price Index (CP-U) using time series forecasting models.… (more)

Berg, Andrew

2006-01-01T23:59:59.000Z

246

Fuel Industry Response to Power Industry Environmental Pressures: An Analysis of Risk and Investment in the Coal Supply Chain and Na tural Gas Industry  

Science Conference Proceedings (OSTI)

This report examines the question of how mounting environmental pressures on coal-fired generation will impact investment in fuel supply and transportation. If destined for demise, are coal companies cutting back investments or exiting the business? Alternatively, are natural gas companies gearing up for a financial boom? The study specifically investigates a "clean coal" case of greatly tightened NOx and SO2 limits as well as a "low coal" case of much reduced coal use to meet CO2 control objectives.

1999-07-02T23:59:59.000Z

247

GASCAP: Wellhead Gas Productive Capacity Model documentation, June 1993  

SciTech Connect

The Wellhead Gas Productive Capacity Model (GASCAP) has been developed by EIA to provide a historical analysis of the monthly productive capacity of natural gas at the wellhead and a projection of monthly capacity for 2 years into the future. The impact of drilling, oil and gas price assumptions, and demand on gas productive capacity are examined. Both gas-well gas and oil-well gas are included. Oil-well gas productive capacity is estimated separately and then combined with the gas-well gas productive capacity. This documentation report provides a general overview of the GASCAP Model, describes the underlying data base, provides technical descriptions of the component models, diagrams the system and subsystem flow, describes the equations, and provides definitions and sources of all variables used in the system. This documentation report is provided to enable users of EIA projections generated by GASCAP to understand the underlying procedures used and to replicate the models and solutions. This report should be of particular interest to those in the Congress, Federal and State agencies, industry, and the academic community, who are concerned with the future availability of natural gas.

Not Available

1993-07-01T23:59:59.000Z

248

Modelling the natural gas consumption in a changing environment  

Science Conference Proceedings (OSTI)

A composite function was used successfully for modelling the Natural Gas (NG) consumption in 16 European energy markets. Background of the model is a logistic function where the upper limit is also a logistic function of time, with secondary parameters ...

F. A. Batzias; N. P. Nikolaou; A. S. Kakos; I. Michailides

2003-09-01T23:59:59.000Z

249

CFD Modelling of Generic Gas Turbine Combustor.  

E-Print Network (OSTI)

??New computational methods are continuously developed in order to solve problems in different engineering fields. One of these fields is gas turbines, where the challenge… (more)

KHODABANDEH, AMIR

2011-01-01T23:59:59.000Z

250

Gas Turbine Plant Modeling for Dynamic Simulation.  

E-Print Network (OSTI)

?? Gas turbines have become effective in industrial applications for electric and thermal energy production partly due to their quick response to load variations. A… (more)

Endale Turie, Samson

2012-01-01T23:59:59.000Z

251

H. R. 4604: a bill to promote competition in the natural gas market, to ensure open access to transportation service, to encourage production of natural gas, to provide natural gas consumers with adequate supplies at reasonable prices, to eliminate demand restraints, and for other purposes. Introduced in the House of Representatives, Ninety-Ninth Congress, Second Session, April 16, 1986  

Science Conference Proceedings (OSTI)

The Natural Gas Policy Act Amendments of 1986 promotes competition in the natural gas market. Title I ensures open access to transportation service by requiring that interstate pipelines not discriminate in providing transportation services. Title II encourages production of natural gas by removing wellhead price controls and repealing jurisdiction over first sales. Title III provides natural gas consumers with adequate supplies at reasonable prices and eliminates demand restraints. The bill was referred to the House Committee on Energy and Commerce.

Not Available

1986-01-01T23:59:59.000Z

252

Accuracy of Petroleum Supply Data  

Annual Energy Outlook 2012 (EIA)

Accuracy of Petroleum Supply Data by Tammy G. Heppner and Carol L. French Overview Petroleum supply data collected by the Petroleum Division (PD) in the Office of Oil and Gas (OOG)...

253

The addition of a US Rare Earth Element (REE) supply-demand model improves the characterization and scope of the United States Department of Energy's effort to forecast US REE Supply and Demand  

E-Print Network (OSTI)

This paper presents the development of a new US Rare Earth Element (REE) Supply-Demand Model for the explicit forecast of US REE supply and demand in the 2010 to 2025 time period. In the 2010 Department of Energy (DOE) ...

Mancco, Richard

2012-01-01T23:59:59.000Z

254

Prod. of Oil, Gas & Coal - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Production of oil, gas, and coal. Projected supply and disposition of crude oil. The model now uses the EIA’s projections of production, imports, and consumption of ...

255

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site  

E-Print Network (OSTI)

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site

1994-01-01T23:59:59.000Z

256

Development of a natural Gas Systems Analysis Model (GSAM). Annual report  

Science Conference Proceedings (OSTI)

Lacking a detailed characterization of the resource base and a comprehensive borehole-to-burnertip evaluation model of the North American natural gas system, past R&D, tax and regulatory policies have been formulated without a full understanding of their likely direct and indirect impacts on future gas supply and demand. The recent disappearance of the deliverability surplus, pipeline deregulation, and current policy debates about regulatory initiatives in taxation, environmental compliance and leasing make the need for a comprehensive gas evaluation system critical. Traditional econometric or highly aggregated energy models are increasingly regarded as unable to incorporate available geologic detail and explicit technology performance and costing algorithms necessary to evaluate resource-technology-economic interactions in a market context. The objective of this research is to create a comprehensive, non-proprietary, microcomputer model of the North American natural gas system. GSAM explicitly evaluates the key components of the natural gas system, including resource base, exploration and development, extraction technology performance and costs, transportation and storage and end use. The primary focus is the detailed characterization of the resource base at the reservoir and sub-reservoir level and the impact of alternative extraction technologies on well productivity and economics. GSAM evaluates the complex interactions of current and alternative future technology and policy initiatives in the context of the evolving gas markets. Scheduled for completion in 1995, a prototype is planned for early 1994. ICF Resources reviewed relevant natural gas upstream, downstream and market models to identify appropriate analytic capabilities to incorporate into GSAM. We have reviewed extraction technologies to better characterize performance and costs in terms of GSAM parameters.

Not Available

1994-02-01T23:59:59.000Z

257

Modeling threat assessments of water supply systems using markov latent effects methodology.  

SciTech Connect

Recent amendments to the Safe Drinking Water Act emphasize efforts toward safeguarding our nation's water supplies against attack and contamination. Specifically, the Public Health Security and Bioterrorism Preparedness and Response Act of 2002 established requirements for each community water system serving more than 3300 people to conduct an assessment of the vulnerability of its system to a terrorist attack or other intentional acts. Integral to evaluating system vulnerability is the threat assessment, which is the process by which the credibility of a threat is quantified. Unfortunately, full probabilistic assessment is generally not feasible, as there is insufficient experience and/or data to quantify the associated probabilities. For this reason, an alternative approach is proposed based on Markov Latent Effects (MLE) modeling, which provides a framework for quantifying imprecise subjective metrics through possibilistic or fuzzy mathematics. Here, an MLE model for water systems is developed and demonstrated to determine threat assessments for different scenarios identified by the assailant, asset, and means. Scenario assailants include terrorists, insiders, and vandals. Assets include a water treatment plant, water storage tank, node, pipeline, well, and a pump station. Means used in attacks include contamination (onsite chemicals, biological and chemical), explosives and vandalism. Results demonstrated highest threats are vandalism events and least likely events are those performed by a terrorist.

Silva, Consuelo Juanita

2006-12-01T23:59:59.000Z

258

Modeling supplier selection and the use of option contracts for global supply chain design  

Science Conference Proceedings (OSTI)

As supply chains become more and more dependent on the efficient movement of materials among facilities that are geographically dispersed there is more opportunity for disruption. One of the common disruptions is the loss of production capability at ... Keywords: Stochastic programming, Supply chain

Ningxiong Xu; Linda Nozick

2009-10-01T23:59:59.000Z

259

Lattice gas models derived from effective field theory  

E-Print Network (OSTI)

We start from a low-energy effective field theory for interacting fermions on the lattice and expand in the hopping parameter to derive the nearest-neighbor interactions for a lattice gas model. In this model the renormalization of couplings for different lattice spacings is inherited from the effective field theory, systematic errors can be estimated a priori, and the breakdown of the lattice gas model description at low temperatures can be understood quantitatively. We apply the lattice gas method to neutron matter and compare with results from a recent quantum simulation.

Matthew Hamilton; Iyam Lynch; Dean Lee

2004-12-03T23:59:59.000Z

260

Lab Supplies  

Science Conference Proceedings (OSTI)

reference materials, bleaching clay, activated bleaching earth and refining cups. Lab Supplies Lab Supplies Lab Supplies Laboratory Services analysis analytical methods aocs certified Certified Reference Materials (CRM) chemist chemists fats lab

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Holographic Dark Energy Model with Modified Variable Chaplygin Gas  

E-Print Network (OSTI)

In this letter we consider a correspondence between holographic dark energy and variable modified Chaplygin gas to obtain a holographic dark energy model of the universe. The corresponding potential of the scalar field has been reconstructed which describes the modified variable Chaplygin gas. The stability of the holographic dark energy in this case is also discussed.

B. C. Paul

2010-06-17T23:59:59.000Z

262

The Development of Simulation Model for D2O Supply System in Heavy Water Nuclear Power Plant  

Science Conference Proceedings (OSTI)

The main purpose of this research is improvement of performance in control system for heavy water supply system of nuclear fuel change machine. Before started design of control system, the model of target system is needed because it is hard to test and ... Keywords: simulation, nuclear, heavy-water, D2O, MATLAB

Sung-Won Choi; Seong-Geun Kwak; Ji-Hyoung Ryu; Kil-To Chong; Chang-Goo Lee

2012-05-01T23:59:59.000Z

263

Revisions to the hydrogen gas generation computer model  

DOE Green Energy (OSTI)

Waste Management Technology has requested SRTC to maintain and extend a previously developed computer model, TRUGAS, which calculates hydrogen gas concentrations within the transuranic (TRU) waste drums. TRUGAS was written by Frank G. Smith using the BASIC language and is described in the report A Computer Model of gas Generation and Transport within TRU Waste Drums (DP- 1754). The computer model has been partially validated by yielding results similar to experimental data collected at SRL and LANL over a wide range of conditions. The model was created to provide the capability of predicting conditions that could potentially lead to the formation of flammable gas concentrations within drums, and to assess proposed drum venting methods. The model has served as a tool in determining how gas concentrations are affected by parameters such as filter vent sizes, waste composition, gas generation values, the number and types of enclosures, water instrusion into the drum, and curie loading. The success of the TRUGAS model has prompted an interest in the program`s maintenance and enhancement. Experimental data continues to be collected at various sites on such parameters as permeability values, packaging arrangements, filter designs, and waste contents. Information provided by this data is used to improve the accuracy of the model`s predictions. Also, several modifications to the model have been made to enlarge the scope of problems which can be analyzed. For instance, the model has been used to calculate hydrogen concentrations inside steel cabinets containing retired glove boxes (WSRC-RP-89-762). The revised TRUGAS computer model, H2GAS, is described in this report. This report summarizes all modifications made to the TRUGAS computer model and provides documentation useful for making future updates to H2GAS.

Jerrell, J.W.

1992-08-31T23:59:59.000Z

264

Can Deployment of Renewable Energy and Energy Efficiency Put Downward Pressure on Natural Gas Prices  

E-Print Network (OSTI)

Supply Models of Natural Gas. ” The Bell Journal ofEnergy Can Help Ease the Natural Gas Crunch. Cambridge,California’s Reliance on Natural Gas. Santa Monica, Calif. :

Wiser, Ryan; Bolinger, Mark

2005-01-01T23:59:59.000Z

265

Updated U.S. Geothermal Supply Characterization and Representation for Market Penetration Model Input  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) Geothermal Technologies Program (GTP) tasked the National Renewable Energy Laboratory (NREL) with conducting the annual geothermal supply curve update. This report documents the approach taken to identify geothermal resources, determine the electrical producing potential of these resources, and estimate the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs from these geothermal resources at present and future timeframes under various GTP funding levels. Finally, this report discusses the resulting supply curve representation and how improvements can be made to future supply curve updates.

Augustine, C.

2011-10-01T23:59:59.000Z

266

Revisions to the hydrogen gas generation computer model  

DOE Green Energy (OSTI)

Waste Management Technology has requested SRTC to maintain and extend a previously developed computer model, TRUGAS, which calculates hydrogen gas concentrations within the transuranic (TRU) waste drums. TRUGAS was written by Frank G. Smith using the BASIC language and is described in the report A Computer Model of gas Generation and Transport within TRU Waste Drums (DP- 1754). The computer model has been partially validated by yielding results similar to experimental data collected at SRL and LANL over a wide range of conditions. The model was created to provide the capability of predicting conditions that could potentially lead to the formation of flammable gas concentrations within drums, and to assess proposed drum venting methods. The model has served as a tool in determining how gas concentrations are affected by parameters such as filter vent sizes, waste composition, gas generation values, the number and types of enclosures, water instrusion into the drum, and curie loading. The success of the TRUGAS model has prompted an interest in the program's maintenance and enhancement. Experimental data continues to be collected at various sites on such parameters as permeability values, packaging arrangements, filter designs, and waste contents. Information provided by this data is used to improve the accuracy of the model's predictions. Also, several modifications to the model have been made to enlarge the scope of problems which can be analyzed. For instance, the model has been used to calculate hydrogen concentrations inside steel cabinets containing retired glove boxes (WSRC-RP-89-762). The revised TRUGAS computer model, H2GAS, is described in this report. This report summarizes all modifications made to the TRUGAS computer model and provides documentation useful for making future updates to H2GAS.

Jerrell, J.W.

1992-08-31T23:59:59.000Z

267

Empirical Math Model: Ideal Gas Law | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Empirical Math Model: Ideal Gas Law Empirical Math Model: Ideal Gas Law Empirical Math Model: Ideal Gas Law January 29, 2013 - 9:54am Addthis What are the key facts? Empirical models are generally most useful in describing conditions close to the experiments used to develop or calibrate them. Predictive tools are essential to understanding phenomena that can not be described experimentally, like used fuel behavior over thousands of years in a repository. Predictability is measured by understanding errors where they are introduced as well as to what degree they are quantified. To appreciate the distinction between curve fitting and what it means for a tool to be truly predictive it might help to consider how the ideal gas law was developed. In 1663, Robert Boyle performed a series of experiments at room temperature

268

Empirical Math Model: Ideal Gas Law | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Empirical Math Model: Ideal Gas Law Empirical Math Model: Ideal Gas Law Empirical Math Model: Ideal Gas Law January 29, 2013 - 9:54am Addthis What are the key facts? Empirical models are generally most useful in describing conditions close to the experiments used to develop or calibrate them. Predictive tools are essential to understanding phenomena that can not be described experimentally, like used fuel behavior over thousands of years in a repository. Predictability is measured by understanding errors where they are introduced as well as to what degree they are quantified. To appreciate the distinction between curve fitting and what it means for a tool to be truly predictive it might help to consider how the ideal gas law was developed. In 1663, Robert Boyle performed a series of experiments at room temperature

269

Using Coupled Harmonic Oscillators to Model Some Greenhouse Gas Molecules  

Science Conference Proceedings (OSTI)

Common greenhouse gas molecu les SF 6 NO 2 CH 4 and CO 2 are modeled as harmonic oscillators whose potential and kinetic energies are derived. Using the Euler?Lagrange equation

Clark Kendrick C. Go; Joel T. Maquiling

2010-01-01T23:59:59.000Z

270

Using multi-layer models to forecast gas flow rates in tight gas reservoirs  

E-Print Network (OSTI)

The petroleum industry commonly uses single-layer models to characterize and forecast long-term production in tight gas reservoir systems. However, most tight gas reservoirs are layered systems where the permeability and porosity of each layer can vary significantly, often over several orders of magnitude. In addition, the drainage areas of each of the layers can be substantially different. Due to the complexity of such reservoirs, the analysis of pressure and production history using single-layer analyses techniques provide incorrect estimates of permeability, fracture conductivity, drainage area, and fracture half-length. These erroneous values of reservoir properties also provide the reservoir engineer with misleading values of forecasted gas recovery. The main objectives of this research project are: (1) to demonstrate the typical errors that can occur in reservoir properties when single-layer modeling methods are used to history match production data from typical layered tight gas reservoirs, and (2) to use the single-layer match to demonstrate the error that can occur when forecasting long-term gas production for such complex gas reservoirs. A finite-difference reservoir simulator was used to simulate gas production from various layered tight gas reservoirs. These synthetic production data were analyzed using single-layer models to determine reservoir properties. The estimated reservoir properties obtained from the history matches were then used to forecast ten years of cumulative gas production and to find the accuracy of gas reserves estimated for tight gas reservoirs when a single-layer model is used for the analysis. Based on the results obtained in this work, I conclude that the accuracy in reservoir properties and future gas flow rates in layered tight gas reservoirs when analyzed using a single-layer model is a function of the degree of variability in permeability within the layers and the availability of production data to be analyzed. In cases where there is an idea that the reservoir presents a large variability in ��k�, using a multi-layer model to analyze the production data will provide the reservoir engineer with more accurate estimates of long-term production recovery and reservoir properties.

Jerez Vera, Sergio Armando

2006-12-01T23:59:59.000Z

271

Numerical modeling of gas migration into and through faulted sand reservoirs in Pabst Field (Main Pass East Block 259), northern Gulf of Mexico  

E-Print Network (OSTI)

The further exploration and development of Pabst Gas Field with faulted sand reservoirs require an understanding of the properties and roles of faults, particularly Low Throw near Vertical Faults (LTNVFs), in gas migration and accumulation at a reservoir scale. This study presents numerical modeling of gas migration and accumulation processes in Pabst Field. Based on studies of the reservoirs, structure, faults, and fluid properties of the field, reservoir scale modeling was performed to determine the gas supply style and the fault properties by means of hundreds of iterations in which the fault properties and gas supply pattern were modified to match the gas distribution obtained from modeling with the gas distribution inferred from seismic data constrained by well data and production data. This study finds that in the main three sand reservoirs of Pabst Field the overlying younger sands cut down into the underlying older sands, so that partial connections between the three sands allow gas communication among the sands. Meanwhile, three fault families break up the three sands into numerous compartments. A primary fault and large synthetic and antithetic faults act as gas migration pathways: the synthetic and antithetic faults are inlets for gas flow and the primary fault is an outlet, and LTNVFs act as barriers to gas flow. Modeling requires fault properties in the field to change while the field is formed. The porosity and permeability of the faults in Pabst Field are 10% and 0.1 md, respectively, during gas charging of the sand reservoirs. But when there is no gas charging and large gas columns are maintained, the porosity and permeability of the faults decrease to 6% and 0.001 md, respectively. Pabst Field probably has an impulse gas charge history. Fault opening and closing, gas charge and recharge, and replacement of gas by formation water may occur. A combination of stratigraphy, structure, overpressure and gas charge rate control gas migration style, gas charge history, and gas distribution in the field. The significance of the study is that this improved numerical approach for modeling gas migration into and through specifically faulted sand reservoirs fills the gap between basin modeling and production modeling.

Li, Yuqian

2005-05-01T23:59:59.000Z

272

How good are supply function equilibrium models: an empirical analysis of the ERCOT balancing market  

E-Print Network (OSTI)

Protecting the Market from “Hockey Stick” Pricing: How thethat some ?rms opt to ‘hockey-stick’ their supply functions—giving their o?er curve a hockey-stick shape—even more than

Sioshansi, Ramteen; Oren, Shmuel

2007-01-01T23:59:59.000Z

273

How Good are Supply Function Equilibrium Models: An Empirical Analysis of the ERCOT Balancing Market  

E-Print Network (OSTI)

Protecting the Market from "Hockey Stick" Pricing: How thesome firms opt to 'hockey-stick' their supply functions—giving their offer curve a hockey-stick shape—even more than

Sioshansi, Ramteen; Oren, Shmuel S

2006-01-01T23:59:59.000Z

274

Assessing the viability of the bundled energy efficiency/electricity supply business model.  

E-Print Network (OSTI)

??The restructuring of the U.S. electricity economy has enabled the emergence of a unique form of energy efficiency provision, the bundled energy efficiency/electricity supply contract.… (more)

Benson, C.L.

2013-01-01T23:59:59.000Z

275

Sensitivity analysis of the fission gas behavior model in BISON.  

Science Conference Proceedings (OSTI)

This report summarizes the result of a NEAMS project focused on sensitivity analysis of a new model for the fission gas behavior (release and swelling) in the BISON fuel performance code of Idaho National Laboratory. Using the new model in BISON, the sensitivity of the calculated fission gas release and swelling to the involved parameters and the associated uncertainties is investigated. The study results in a quantitative assessment of the role of intrinsic uncertainties in the analysis of fission gas behavior in nuclear fuel.

Swiler, Laura Painton; Pastore, Giovanni [Idaho National Laboratory, Idaho Fall, ID; Perez, Danielle [Idaho National Laboratory, Idaho Fall, ID; Williamson, Richard [Idaho National Laboratory, Idaho Fall, ID

2013-05-01T23:59:59.000Z

276

Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1  

Science Conference Proceedings (OSTI)

The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

NONE

1996-02-26T23:59:59.000Z

277

Infrastructure investments and resource adequacy in the restructured US natural gas market : is supply security at risk?  

E-Print Network (OSTI)

The objective of this paper is to analyze the development of US natural gas infrastructure over the last two decades and to discuss its perspectives. In particular, we focus on the relationship between the regulatory ...

Hirschhausen, Christian von

2006-01-01T23:59:59.000Z

278

Effect of Energy Efficiency Standards on Natural Gas Prices  

E-Print Network (OSTI)

2003. "Balancing Natural Gas Supply Policy, Fueling theconstruct its supply curve for natural gas facilitates thatnatural gas reflects the interaction of its demand and supply

Carnall, Michael

2012-01-01T23:59:59.000Z

279

Dynamic Absorption Model for Off-Gas Separation  

Science Conference Proceedings (OSTI)

Modeling and simulations will aid in the future design of U.S. advanced reprocessing plants for the recovery and recycle of actinides in used nuclear fuel. The specific fuel cycle separation process discussed in this report is the off-gas treatment system. The off-gas separation consists of a series of scrubbers and adsorption beds to capture constituents of interest. Dynamic models are being developed to simulate each unit operation involved so each unit operation can be used as a stand-alone model and in series with multiple others. Currently, a rate based, dynamic absorption model is being developed in gPROMS software. Inputs include liquid and gas stream constituents, column properties, liquid and gas phase reactions, number of stages, and inlet conditions. It simulates multiple component absorption with countercurrent flow and accounts for absorption by mass transfer and chemical reaction. The assumption of each stage being a discrete well-mixed entity was made. Therefore, the model is solved stagewise. The simulation outputs component concentrations in both phases as a function of time from which the rate of absorption is determined. Temperature of both phases is output as a function of time also. The model will be used able to be used as a standalone model in addition to in series with other off-gas separation unit operations. The current model is being generated based on NOx absorption; however, a future goal is to develop a CO2 specific model. The model will have the capability to be modified for additional absorption systems. The off-gas models, both adsorption and absorption, will be made available via the server or web for evaluation by customers.

Veronica J. Rutledge

2011-07-01T23:59:59.000Z

280

Gas permeation carbon capture --- Process modeling and optimization  

SciTech Connect

A multi-staged gas permeation carbon capture process model was developed in Aspen Custom Modeler{reg_sign} (ACM) and optimized in the context of the retrofit of a 550 MW subcritical pulverized coal (PC) power plant. The gas permeation stages in the process are described by a custom multi-component, hollowfiber membrane model. Gas transport across the asymmetric membrane was modeled according to the solution-diffusion model for the selective skin layer and the assumption of negligible flux resistance by the porous support. Counter-current, one-dimensional plug flow was assumed with permeate pressure drop in the fiber lumen side due to capillary constrained flow. A modular optimization framework was used to minimize the levelized cost of electricity (LCOE) by optimizing a set of key process variables. The framework allows the external control of multiple simulation modules from different software packages from a common interface.

Morinelly, Juan; Miller, David

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Supplier selection using fuzzy AHP and fuzzy multi-objective linear programming for developing low carbon supply chain  

Science Conference Proceedings (OSTI)

Environmental sustainability of a supply chain depends on the purchasing strategy of the supply chain members. Most of the earlier models have focused on cost, quality, lead time, etc. issues but not given enough importance to carbon emission for supplier ... Keywords: Carbon emission, Fuzzy AHP, Fuzzy multi-objective linear programming, Green house gas, Supplier selection, Textile supply chain

Krishnendu Shaw; Ravi Shankar; Surendra S. Yadav; Lakshman S. Thakur

2012-07-01T23:59:59.000Z

282

Nuclear liquid-gas phase transition within the lattice gas model  

E-Print Network (OSTI)

We study the nuclear liquid-gas phase transition on the basis of a two-component lattice gas model. A Metropolis type of sampling method is used to generate microscopic states in the canonical ensemble. The effective equation of state and fragment mass distributions are evaluated in a wide range of temperatures and densities. A definition of the phase coexistence region appropriate for mesoscopic systems is proposed. The caloric curve resulting from different types of freeze-out conditions are presented.

J. Borg; I. N. Mishustin; J. P. Bondorf

1998-09-25T23:59:59.000Z

283

Signposts of Change in Evolving Natural Gas Markets: Key Factors Affecting Expected Future Supply and Demand for Natural Gas in the United States  

Science Conference Proceedings (OSTI)

In recent years, the North American natural gas industry has undergone a major restructuring as a result of the so-called “shale revolution.” This is an amazing situation when one considers the magnitude of the changes the shale revolution has spurred not only in domestic natural gas markets, but across many sectors of the overall economy. In essence, the shale revolution is a “black swan” event that many industry observers consider to have been a once in more than ...

2013-12-18T23:59:59.000Z

284

CERTS customer adoption model  

E-Print Network (OSTI)

120. Mall Low Natural Gas Price Marginal Supply Cost (121. Mall Low Natural Gas Price Marginal Supply Cost (122. Mall Low Natural Gas Price Marginal Supply Cost (

Rubio, F. Javier; Siddiqui, Afzal S.; Marnay, Chris; Hamachi, Kristina S.

2000-01-01T23:59:59.000Z

285

Buildings, Energy, Greenhouse Gas, Industrial and Policy Modeling and  

NLE Websites -- All DOE Office Websites (Extended Search)

Buildings, Energy, Greenhouse Gas, Industrial and Policy Modeling and Buildings, Energy, Greenhouse Gas, Industrial and Policy Modeling and Simulation Tools Available from Energy Analysis and Environmental Impacts Department Tools header image January 2014 Tools and models to find the best way to save energy and reduce greenhouse gas emissions in cities and industries, to follow the transport of pollutants through the environment, and to calculate the cost of power interruptions are among those available on a new Lawrence Berkeley National Laboratory (Berkeley Lab) web site. The site brings together models and simulation tools developed by the Energy Analysis and Environmental Impacts (EAEI) Department of the Lab's Environmental Energy Technologies Division. "Our hope is that the site will facilitate greater technical awareness of

286

Joint Modelling of Gas and Electricity spot prices  

E-Print Network (OSTI)

The recent liberalization of the electricity and gas markets has resulted in the growth of energy exchanges and modelling problems. In this paper, we modelize jointly gas and electricity spot prices using a mean-reverting model which fits the correlations structures for the two commodities. The dynamics are based on Ornstein processes with parameterized diffusion coefficients. Moreover, using the empirical distributions of the spot prices, we derive a class of such parameterized diffusions which captures the most salient statistical properties: stationarity, spikes and heavy-tailed distributions. The associated calibration procedure is based on standard and efficient statistical tools. We calibrate the model on French for electricity and on UK market for gas, and then simulate some trajectories which reproduce well the observed prices behavior. Finally, we illustrate the importance of the correlation structure and of the presence of spikes by measuring the risk on a power plant portfolio.

Frikha, Noufel

2009-01-01T23:59:59.000Z

287

A Supply Chain Network Perspective for Electric Power Generation, Supply, Transmission, and Consumption  

E-Print Network (OSTI)

and less costly than older coal-fired power plants. In addition, technological advances in electricity, supply, trans- mission, and consumption is developed. The model is sufficiently general to handle the economics of power production. For example, new gas-fired combined cycle power plants are more effi- cient

Nagurney, Anna

288

Analyzing money distributions in `ideal gas' models of markets  

E-Print Network (OSTI)

We analyze an ideal gas like models of a trading market. We propose a new fit for the money distribution in the fixed or uniform saving market. For the marketwith quenched random saving factors for its agents we show that the steady state income ($m$) distribution $P(m)$ in the model has a power law tail with Pareto index $\

Chatterjee, A; Stinchcombe, Robert B; Chatterjee, Arnab; Chakrabarti, Bikas K.; Stinchcombe, Robin B.

2005-01-01T23:59:59.000Z

289

Isospin Lattice-Gas Model and Liquid-Gas Phase Transition in Asymmetric Nuclear Matter  

E-Print Network (OSTI)

An isospin lattice-gas model, which is a spin-1 Ising model, is employed to investigate the liquid-gas phase transition in asymmetric nuclear matter. We consider nuclear matter as a lattice where each lattice site can be either empty or occupied by a proton or a neutron, with a nearest-neighbor interaction among the nucleons. With the Bragg-Williams mean field approximation, we calculate various thermodynamic properties of nuclear matter for different densities and different proton-neutron asymmetry parameter $s$. Our model exhibits liquid-gas phase transition below a critical temperature $T_c$, and predicts a monotonic decreasing of $T_c$ as the magnitude of $s$ is increased. The dependence of the nuclear matter isotherms on the asymmetry parameter $s$ is discussed.

S. Ray; J. Shamanna; T. T. S. Kuo

1996-08-13T23:59:59.000Z

290

Isospin Lattice-Gas Model and Liquid-Gas Phase Transition in Asymmetric Nuclear Matter  

E-Print Network (OSTI)

An isospin lattice-gas model, which is a spin-1 Ising model, is employed to investigate the liquid-gas phase transition in asymmetric nuclear matter. We consider nuclear matter as a lattice where each lattice site can be either empty or occupied by a proton or a neutron, with a nearest-neighbor interaction among the nucleons. With the Bragg-Williams mean field approximation, we calculate various thermodynamic properties of nuclear matter for different densities and different proton-neutron asymmetry parameter s. Our model exhibits liquidgas phase transition below a critical temperature Tc, and predicts a monotonic decreasing of Tc as the magnitude of s is increased. The dependence of the nuclear matter isotherms on the asymmetry parameter s is discussed. Ray, Shamanna and Kuo / Liquid-gas phase transition in Nuclear matter 2 1.

S. Ray; J. Shamanna; T. T. S. Kuo

2008-01-01T23:59:59.000Z

291

Computer modeling of gas flow and gas loading of rock in a bench blasting environment  

SciTech Connect

Numerical modeling can contribute greatly to an understanding of the physics involved in the blasting process. This paper will describe the latest enhancements to the blast modeling code DMC (Distinct Motion Code) (Taylor and Preece, 1989) and will demonstrate the ability of DMC to model gas flow and rock motion in a bench blasting environment. DMC has been used previously to model rock motion associated with blasting in a cratering environment (Preece and Taylor, 1990) and in confined volume blasting associated with in-situ oil shale retorting (Preece, 1990 a b). These applications of DMC treated the explosive loading as force versus time functions on specific spheres which were adjusted to obtain correct face velocities. It was recognized that a great need in explosives modeling was the coupling of an ability to simulate gas flow with the rock motion simulation capability of DMC. This was accomplished by executing a finite difference code that computes gas flow through a porous media (Baer and Gross, 1989) in conjunction with DMC. The marriage of these two capabilities has been documented by Preece and Knudsen, 1991. The capabilities that have been added recently to DMC and which will be documented in this paper include: (1) addition of a new equation of state for the explosive gases; (2) modeling of gas flow and sphere loading in a bench environment. 8 refs., 5 figs.

Preece, D.S.; Baer, M.R. (Sandia National Labs., Albuquerque, NM (United States)); Knudsen, S.D. (RE/SPEC, Inc., Albuquerque, NM (United States))

1991-01-01T23:59:59.000Z

292

Adjusting to Overcapacity: Impacts of New Gas-Fired Units on Power Supply and Fuel Use: Report Series on Natural Gas and Power Relia bility  

Science Conference Proceedings (OSTI)

Capacity additions of gas-fired combined-cycle units reached a peak in 2003 and will drop sharply in 2004. While the extraordinary boom of merchant capacity is now largely over, it has resulted in overbuilding in many regions and will have impacts that are widespread. The overall efficiency of this new capacity has been strong, but trends toward greater capacity utilization have been arrested by the combination of overbuilding and high natural gas prices. Capacity premiums have been driven to low levels,...

2004-03-22T23:59:59.000Z

293

A Dark Energy model combining DGP gravity and Chaplygin gas  

E-Print Network (OSTI)

The expansion of the Universe is accelerating, as testified by observations of supernovae of type Ia as a function of redshift. Explanations are of two types: modifications of Einstein gravity or new forms of energy, coined dark energy.The accelerated expansion is explained here by a combination of Dvali-Gabadadze-Porrati (DGP) model gravity and Chaplygin gas dark energy. Both models are characterized by a length scale L which may be the same. The continuity equation for the combined model is derived in flat geometry, and solved by numerical methods. The solution is shown to have the expected properties: at very small scales (aenergy density behaves as pressureless dust, at very large scales (a>>L) as a cosmological constant. The modifications to the DGP model and the Chaplygin gas model occur for values of a L. The results show an increase in the present dark energy density relative to the plain DGP model.

Matts Roos

2007-04-06T23:59:59.000Z

294

Outlook for Capacity Retirements Following U.S. Boom in New Supplies: Report Series on Natural Gas and Power Reliability  

Science Conference Proceedings (OSTI)

While entrepreneurial exuberance for power plant development has evaporated in the face of market saturation, depressed power prices, and tightening credit, the legacy of the power plant building boom is record additions of gas-fired turbines and combined cycle units between 1998 and 2007. These are contributing to a wave of fossil plant retirements, projected for the first time in this report. The combination of recent cancellations and impending retirements reduces the outlook for overbuilding, yet res...

2003-02-04T23:59:59.000Z

295

Model documentation: Natural Gas Transmission and Distribution Model of the National Energy Modeling System; Volume 1  

SciTech Connect

The Natural Gas Transmission and Distribution Model (NGTDM) is a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

NONE

1994-02-24T23:59:59.000Z

296

Recurrent radio emission and gas supply: the case of the radio galaxy B2 0258+35  

E-Print Network (OSTI)

Outlined is the discovery of a very faint, diffuse, low surface-brightness (0.5 \\mJybeam, 1.4 \\mJyarcminsq on average) structure around the radio source B2 0258+35 hosted by an HI-rich early-type galaxy (NGC 1167). Since B2 0258+35 is a young Compact Steep Spectrum (CSS) source, the newly discovered structure could represent a remnant from an earlier stage of AGN activity. We go on by explaining in detail all the possibilities for triggering the radio activity in B2 0258+35 regarding gas accretion in a recurrent AGN activity framework. NGC 1167 hosts a very regular, extended and massive \\HI\\ disc that has been studied in great detail. Previous studies of the \\HI\\ closer to the core seem to go against the assumption of a circum-nuclear disc of \\HI\\ as the source of the accreting gas. We consider the cooling of gas from the hot, X-ray halo as a possible alternative option for the fueling of the AGN, as suggested in the case of other sources of similar radio power as B2 0258+35. Estimates are given for the age o...

Shulevski, Aleksandar; Oosterloo, Tom; Struve, Christian

2012-01-01T23:59:59.000Z

297

Power Supplies  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 5 Typical medium-frequency induction power supply incorporating (a) a parallel inverter and (b) a series inverter...

298

An Equilibrium-Based Model of Gas Reaction and Detonation  

Science Conference Proceedings (OSTI)

During gaseous diffusion plant operations, conditions leading to the formation of flammable gas mixtures may occasionally arise. Currently, these could consist of the evaporative coolant CFC-114 and fluorinating agents such as F2 and ClF3. Replacement of CFC-114 with a non-ozone-depleting substitute is planned. Consequently, in the future, the substitute coolant must also be considered as a potential fuel in flammable gas mixtures. Two questions of practical interest arise: (1) can a particular mixture sustain and propagate a flame if ignited, and (2) what is the maximum pressure that can be generated by the burning (and possibly exploding) gas mixture, should it ignite? Experimental data on these systems, particularly for the newer coolant candidates, are limited. To assist in answering these questions, a mathematical model was developed to serve as a tool for predicting the potential detonation pressures and for estimating the composition limits of flammability for these systems based on empirical correlations between gas mixture thermodynamics and flammability for known systems. The present model uses the thermodynamic equilibrium to determine the reaction endpoint of a reactive gas mixture and uses detonation theory to estimate an upper bound to the pressure that could be generated upon ignition. The model described and documented in this report is an extended version of related models developed in 1992 and 1999.

Trowbridge, L.D.

2000-04-01T23:59:59.000Z

299

Aspects on Bioenergy as a Technical Measure to Reduce Energy Related Greenhouse Gas Emissions.  

E-Print Network (OSTI)

??Greenhouse gas emission assessments of energy supply systems have traditionally included the CO2 emissions produced as the fuel is burned. A lot of models and… (more)

Wihersaari, Margareta

2005-01-01T23:59:59.000Z

300

Aspects on bioenergy as a technical measure to reduce energy related greenhouse gas emissions.  

E-Print Network (OSTI)

??Greenhouse gas emission assessments of energy supply systems have traditionally included the CO2 emissions produced as the fuel is burned. A lot of models and… (more)

Wihersaari, Margareta

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Gas Centrifuge Enrichment Plant Safeguards System Modeling  

SciTech Connect

The U.S. Department of Energy (DOE) is interested in developing tools and methods for potential U.S. use in designing and evaluating safeguards systems used in enrichment facilities. This research focuses on analyzing the effectiveness of the safeguards in protecting against the range of safeguards concerns for enrichment plants, including diversion of attractive material and unauthorized modes of use. We developed an Extend simulation model for a generic medium-sized centrifuge enrichment plant. We modeled the material flow in normal operation, plant operational upset modes, and selected diversion scenarios, for selected safeguards systems. Simulation modeling is used to analyze both authorized and unauthorized use of a plant and the flow of safeguards information. Simulation tracks the movement of materials and isotopes, identifies the signatures of unauthorized use, tracks the flow and compilation of safeguards data, and evaluates the effectiveness of the safeguards system in detecting misuse signatures. The simulation model developed could be of use to the International Atomic Energy Agency IAEA, enabling the IAEA to observe and draw conclusions that uranium enrichment facilities are being used only within authorized limits for peaceful uses of nuclear energy. It will evaluate improved approaches to nonproliferation concerns, facilitating deployment of enhanced and cost-effective safeguards systems for an important part of the nuclear power fuel cycle.

Elayat, H A; O'Connell, W J; Boyer, B D

2006-06-05T23:59:59.000Z

302

Off-gas Adsorption Model and Simulation - OSPREY  

Science Conference Proceedings (OSTI)

The absence of industrial scale nuclear fuel reprocessing in the U.S. has precluded the necessary driver for developing the advanced simulation capability now prevalent in so many other countries. Thus, it is essential to model complex series of unit operations to simulate, understand, and predict inherent transient behavior. A capability of accurately simulating the dynamic behavior of advanced fuel cycle separation processes is expected to provide substantial cost savings and many technical benefits. To support this capability, a modeling effort focused on the off-gas treatment system of a used nuclear fuel recycling facility is in progress. The off-gas separation consists of a series of scrubbers and adsorption beds to capture constituents of interest. Dynamic models are being developed to simulate each unit operation involved so each unit operation can be used as a stand-alone model and in series with multiple others. Currently, an adsorption model has been developed within Multi-physics Object Oriented Simulation Environment (MOOSE) developed at the Idaho National Laboratory (INL). Off-gas Separation and REcoverY (OSPREY) models the adsorption of offgas constituents for dispersed plug flow in a packed bed under non-isothermal and non-isobaric conditions. Inputs to the model include gas composition, sorbent and column properties, equilibrium and kinetic data, and inlet conditions. The simulation outputs component concentrations along the column length as a function of time from which breakthrough data can be obtained. The breakthrough data can be used to determine bed capacity, which in turn can be used to size columns. In addition to concentration data, the model predicts temperature along the column length as a function of time and pressure drop along the column length. A description of the OSPREY model, results from krypton adsorption modeling and plans for modeling the behavior of iodine, xenon, and tritium will be discussed.

Veronica J Rutledge

2013-10-01T23:59:59.000Z

303

Petroleum Supply Monthly  

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

6 6 September 2013 Table 20. PAD District 4 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 511 - - - - 289 -169 -49 4 579 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 316 0 13 11 -264 - - 2 16 15 44 Pentanes Plus .................................................. 50 0 - - 0 -38 - - 0 6 13 -7 Liquefied Petroleum Gases ..............................

304

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 19. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 393 - - - - 330 -111 -46 4 562 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 406 0 2 15 -333 - - 0 20 9 61 Pentanes Plus .................................................. 58 0 - - - -33 - - 0 6 9 10 Liquefied Petroleum Gases .............................. 348 - - 2 15 -299 - -

305

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 23. PAD District 5 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,197 - - - - 1,186 - -47 -4 2,340 0 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 69 0 14 4 - - - -60 83 20 43 Pentanes Plus .................................................. 32 0 - - - - - - -1 26 2 5 Liquefied Petroleum Gases .............................. 37 - - 14 4 - - - -59

306

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 7. PAD District 1 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 24 - - - - 854 -10 42 -28 935 3 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 42 0 27 67 119 - - -30 26 1 259 Pentanes Plus .................................................. 7 0 - - - - - - 0 - 0 7 Liquefied Petroleum Gases .............................. 35 - - 27 67 119 - - -30 26

307

Oil and Gas Supply Module of the National Energy Modeling System ...  

U.S. Energy Information Administration (EIA)

Advanced technology impacts ... • regulatory or legislatively mandated environmental costs ... as the 1984 Enhanced Oil Recovery Study completed by the National ...

308

Regional maps Figure F4. Oil and gas supply model regions Figure ...  

U.S. Energy Information Administration (EIA)

75 95 100 0 5 25 75 95 100 0 5 25 75 95 Source: U.S. Energy Information Administration, Office of Energy Analysis. 100. Created Date: 4/30/2013 2:24:47 PM ...

309

Modeling acid-gas generation from boiling chloride brines  

Science Conference Proceedings (OSTI)

This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative concentration as a result of the heat released by spent nuclear fuel. Processes that are modeled include boiling of highly concentrated solutions, gas transport, and gas condensation accompanied by the dissociation of acid gases, causing low-pH condensate. Simple calculations are first carried out to evaluate condensate pH as a function of HCl gas fugacity and condensed water fraction for a vapor equilibrated with saturated calcium chloride brine at 50-150 C and 1 bar. The distillation of a calcium-chloride-dominated brine is then simulated with a reactive transport model using a brine composition representative of partially evaporated calcium-rich pore waters at Yucca Mountain. Results show a significant increase in boiling temperature from evaporative concentration, as well as low pH in condensates, particularly for dynamic systems where partial condensation takes place, which result in enrichment of HCl in condensates. These results are in qualitative agreement with experimental data from other studies. The combination of reactive transport with multicomponent brine chemistry to study evaporation, boiling, and the potential for acid gas generation at the proposed Yucca Mountain repository is seen as an improvement relative to previously applied simpler batch evaporation models. This approach allows the evaluation of thermal, hydrological, and chemical (THC) processes in a coupled manner, and modeling of settings much more relevant to actual field conditions than the distillation experiment considered. The actual and modeled distillation experiments do not represent expected conditions in an emplacement drift, but nevertheless illustrate the potential for acid-gas generation at moderate temperatures (<150 C).

Zhang, Guoxiang; Spycher, Nicolas; Sonnenthal, Eric; Steefel, Carl

2009-11-16T23:59:59.000Z

310

Modeling the Gas By-products of Metalorganic Chemical Vapor ...  

Science Conference Proceedings (OSTI)

The fiber then proceeds through an inert gas seal, inlet cross, hot-wall reactor, ... The effluent flows through a burn box (heated to greater than 500°C) before ... involve transport-kinetic modeling that describes the fluid flow, heat transfer, and  ...

311

Modeling Swtichgrass Biomass Production and Associated Greenhouse Gas Emissions  

E-Print Network (OSTI)

Modeling Swtichgrass Biomass Production and Associated Greenhouse Gas Emissions Weiyuan Zhu, Johan in the atmosphere have led to renewed interest in energy from plant biomass. Surfing the internet or flipping to a series of concerns, apprehensions and challenges presented by a shift to a heavier reliance on biomass

California at Davis, University of

312

Microeconomics of the ideal gas like market models  

E-Print Network (OSTI)

We develop a framework based on microeconomic theory from which the ideal gas like market models can be addressed. A kinetic exchange model based on that framework is proposed and its distributional features have been studied by considering its moments. Next, we derive the moments of the CC model (Eur. Phys. J. B 17 (2000) 167) as well. Some precise solutions are obtained which conform with the solutions obtained earlier. Finally, an output market is introduced with global price determination in the model with some necessary modifications.

Chakrabarti, Anindya S

2009-01-01T23:59:59.000Z

313

Calculation of gas hydrate dissociation with finite-element model  

SciTech Connect

In situ gas hydrates have been found abundantly in the Arctic regions of the US, Canada, and Russia. Gas recovery from such a hydrate reservoir under permafrost conditions is described in the present paper. The technique is based upon a finite-element transient heat-conduction model that includes the ability to handle phase change. That model is applied to field data available from the North Slope of Alaska for predicting natural-gas production. Parametric studies have also been conducted to explore the effects of hydrate zone thickness, wellbore temperature, wellbore radius, porosity, etc., on the gas production rate. Comparisons of temperature distributions throughout the medium, and the propagation of the moving dissociation front with respect to time predicted by the present scheme and a finite-difference scheme, show good agreement. The data generated in the present study may be useful in deciding on the most optimal technique for gas recovery from hydrates. Additionally, it may provide drilling engineers with valuable information to establish guidelines for safe drilling in the presence of hydrates.

Das, D.K.; Srivastava, V. (Univ. of Alaska, Fairbanks, AK (United States). Mechanical Engineering Dept.)

1993-12-01T23:59:59.000Z

314

Opportunities for LNG supply infrastructure and demand growth in US and International markets; Opportunities for liquefied natural gas supply infrastructure and demand growth in United States and International markets.  

E-Print Network (OSTI)

??Countries are looking beyond their borders for options to satiate a forecasted increase in natural gas consumption. A strong option for importing natural gas is… (more)

Connell, Richard Perry

2004-01-01T23:59:59.000Z

315

Comparing Price Forecast Accuracy of Natural Gas Models and Futures Markets  

E-Print Network (OSTI)

Update on Petroleum, Natural Gas, Heating Oil and Gasoline.of the Market for Natural Gas Futures. Energy Journal 16 (Modeling Forum. 2003. Natural Gas, Fuel Diversity and North

Wong-Parodi, Gabrielle; Dale, Larry; Lekov, Alex

2005-01-01T23:59:59.000Z

316

System dynamics modelling of product carbon footprint life cycles for collaborative green supply chains  

Science Conference Proceedings (OSTI)

Governments, environmental groups and industry associations are reducing greenhouse gas emissions to insure environmental sustainability. Manufacturing plays an important role in economic development but is a main cause of global warming since production ... Keywords: economic input–output life cycle assessment, mass customisation, product carbon footprint, system dynamics

AmyJ. C. Trappey; CharlesV. Trappey; Chih-Tung Hsiao; JerryJ. R. Ou; Chin-Tsung Chang

2012-10-01T23:59:59.000Z

317

Numerical Modeling of Fractured Shale-Gas and Tight-Gas Reservoirs Using Unstructured Grids  

E-Print Network (OSTI)

Various models featuring horizontal wells with multiple induced fractures have been proposed to characterize flow behavior over time in tight gas and shale gas systems. Currently, there is little consensus regarding the effects of non-ideal fracture geometries and coupled primary-secondary fracture interactions on reservoir performance in these unconventional gas reservoirs. This thesis provides a grid construction tool to generate high-resolution unstructured meshes using Voronoi grids, which provides the flexibility required to accurately represent complex geologic domains and fractures in three dimensions. Using these Voronoi grids, the interaction between propped hydraulic fractures and secondary "stress-release" fractures were evaluated. Additionally, various primary fracture configurations were examined, where the fractures may be non-planar or non-orthogonal. For this study, a numerical model was developed to assess the potential performance of tight gas and shale gas reservoirs. These simulations utilized up to a half-million grid-blocks and consider a period of up to 3,000 years in some cases. The aim is to provide very high-definition reference numerical solutions that will exhibit virtually all flow regimes we can expect in these unconventional gas reservoirs. The simulation results are analyzed to identify production signatures and flow regimes using diagnostic plots, and these interpretations are confirmed using pressure maps where useful. The coupled primary-secondary fracture systems with the largest fracture surface areas are shown to give the highest production in the traditional "linear flow" regime (which occurs for very high conductivity vertical fracture cases). The non-ideal hydraulic fracture geometries are shown to yield progressively lower production as the angularity of these fractures increases. Hence, to design optimum fracture completions, we should endeavor to keep the fractures as orthogonal to the horizontal well as possible. This work expands the current understanding of flow behavior in fractured tight-gas and shale-gas systems and may be used to optimize fracture and completion design, to validate analytical models and to facilitate more accurate reserves estimation.

Olorode, Olufemi Morounfopefoluwa

2011-12-01T23:59:59.000Z

318

A model-based approach to intelligent control of gas metal arc welding  

SciTech Connect

This paper discusses work on a model-based intelligent process controller for gas metal arc welding. Four sensors input to a neural network, which communicates to a reference model-based adaptive controller that controls process parameters. Reference model derivation and validation are discussed. The state of an arch weld is determined by the composition of the weld and base metal and the weld's thermomechanical history. The composition of the deposited weld metal depends primarily on the amount of filler metal dilution; heat input to the weld, comprising pre-heat and process heat, is the controlling factor in the thermal cycle. Thus, control of the arc welding process should focus on rational specification and in-process control of the heat and mass input to the weld. A control model has been developed in which the governing equations are solved for the process parameters as functions of the desired heat input (in terms of heat input unit weld length) and mass input (in terms of transverse reinforcement area) to the weld. The model includes resistive and arc heating of the electrode wire, characteristics of the welding power supply, and a volumetric heat balance on the electrode material, as well as latent and superheat of the electrode material. Extension of the model to include dynamics of individual droplet transfer events, based on incorporating a nonlinear, lumped parameter droplet analysis, is discussed. A major emphasis has been placed on computational simplicity; model solutions are required at the rate of about 10 Hz during welding. Finally, a process control scheme has been developed for the gas metal arc welding process using the above nonlinear model with a proportional-integral controller with adaptive coefficients to control the weld heat input and reinforcement area independently. Performance of the resulting control method is discussed. 10 refs., 5 figs.

Smartt, H.B.; Johnson, J.A.; Einerson, C.J.; Watkins, A.D.; Carlson, N.M.

1990-01-01T23:59:59.000Z

319

Supply Implications  

U.S. Energy Information Administration (EIA)

Supply Implications. European export gasoline volumes likely to remain unchanged Uncertainties are weighted towards less availability But the quality of the available ...

320

Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model (Released in the STEO March 1998)  

Reports and Publications (EIA)

The blending of oxygenates, such as fuel ethanol and methyl tertiary butyl ether (MTBE), into motor gasoline has increased dramatically in the last few years because of the oxygenated and reformulated gasoline programs. Because of the significant role oxygenates now have in petroleum product markets, the Short-Term Integrated Forecasting System (STIFS) was revised to include supply and demand balances for fuel ethanol and MTBE. The STIFS model is used for producing forecasts in the Short-Term Energy Outlook. A review of the historical data sources and forecasting methodology for oxygenate production, imports, inventories, and demand is presented in this report.

Information Center

1998-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Evaluation of the gas production economics of the gas hydrate cyclic thermal injection model. [Cyclic thermal injection  

SciTech Connect

The objective of the work performed under this directive is to assess whether gas hydrates could potentially be technically and economically recoverable. The technical potential and economics of recovering gas from a representative hydrate reservoir will be established using the cyclic thermal injection model, HYDMOD, appropriately modified for this effort, integrated with economics model for gas production on the North Slope of Alaska, and in the deep offshore Atlantic. The results from this effort are presented in this document. In Section 1, the engineering cost and financial analysis model used in performing the economic analysis of gas production from hydrates -- the Hydrates Gas Economics Model (HGEM) -- is described. Section 2 contains a users guide for HGEM. In Section 3, a preliminary economic assessment of the gas production economics of the gas hydrate cyclic thermal injection model is presented. Section 4 contains a summary critique of existing hydrate gas recovery models. Finally, Section 5 summarizes the model modification made to HYDMOD, the cyclic thermal injection model for hydrate gas recovery, in order to perform this analysis.

Kuuskraa, V.A.; Hammersheimb, E.; Sawyer, W.

1985-05-01T23:59:59.000Z

322

Natural gas production from hydrate dissociation: An axisymmetric model  

Science Conference Proceedings (OSTI)

This paper describes an axisymmetric model for natural gas production from the dissociation of methane hydrate in a confined reservoir by a depressurizing well. During the hydrate dissociation, heat and mass transfer in the reservoir are analyzed. The system of governing equations is solved by a finite difference scheme. For different well pressures and reservoir temperatures, distributions of temperature and pressure in the reservoir, as well as the natural gas production from the well are evaluated. The numerical results are compared with those obtained by a linearization method. It is shown that the gas production rate is a sensitive function of well pressure. The simulation results are compared with the linearization approach and the shortcomings of the earlier approach are discussed.

Ahmadi, G. (Clarkson Univ., Pottsdam, NY); Ji, Chuang (Clarkson Univ., Pottsdam, NY); Smith, D.H.

2007-08-01T23:59:59.000Z

323

Impact of injecting inert cushion gas into a gas storage reservoir.  

E-Print Network (OSTI)

??Underground natural gas storage is a process which ensures constant supply of natural gas by storing the excess gas produced and quickly supply when required.… (more)

Lekkala, Sudheer R.

2009-01-01T23:59:59.000Z

324

Holographic Dark Energy Model with Modified Generalized Chaplygin Gas  

E-Print Network (OSTI)

We present a holographic dark energy model of the universe considering modified generalized Chaplygin gas (GCG). The modified GCG behaves as an ordinary barotropic fluid in the early epoch when the universe was tiny but behaves subsequently as a $\\Lambda$CDM model at late epoch. An equivalent model with scalar field is obtained here by constructing the corresponding potential. The holographic dark energy is identified with the modified GCG and we determine the corresponding holographic dark energy field and its potential. The stability of the holographic dark energy in this case is also discussed.

B. C. Paul; P. Thakur; A. Saha

2007-07-31T23:59:59.000Z

325

Can Deployment of Renewable Energy and Energy Efficiency Put Downward Pressure on Natural Gas Prices  

E-Print Network (OSTI)

price elasticity of natural gas supply implied by theour key findings. NATURAL GAS SUPPLY AND DEMAND: A CURSORYprice elasticity of natural gas supply, and discuss the

Wiser, Ryan; Bolinger, Mark

2005-01-01T23:59:59.000Z

326

The potential impact of renewable energy deployment on natural gas prices in New England  

E-Print Network (OSTI)

economics literature on natural gas supply elasticities. Wescenarios. Given that natural gas supply is generallyhas little native natural gas supply, and is therefore

Wiser, Ryan; Bolinger, Mark

2004-01-01T23:59:59.000Z

327

Lifecycle impacts of natural gas to hydrogen pathways on urban air quality  

E-Print Network (OSTI)

following three natural gas to hydrogen supply pathways areHFCVs. Three natural gas-based hydrogen supply pathways areof the hy- drogen supply pathway: natural gas extraction,

Wang, Guihua; Ogden, Joan M; Nicholas, Michael A

2007-01-01T23:59:59.000Z

328

Implications of a Regime-Switching Model on Natural Gas Storage Valuation and Optimal Operation  

E-Print Network (OSTI)

Implications of a Regime-Switching Model on Natural Gas Storage Valuation and Optimal Operation-switching model for the risk adjusted natural gas spot price and study the implications of the model on the valuation and optimal operation of natural gas storage facilities. We calibrate the model parameters to both

Forsyth, Peter A.

329

Constrained model predictive control implementation for a heavy-duty gas turbine power plant  

Science Conference Proceedings (OSTI)

In this paper, model predictive control (MPC) strategy is implemented to a GE9001E gas turbine power plant. A linear model is developed for the gas turbine using conventional mathematical models and ARX identification procedure. Also a process control ... Keywords: ARX, PID, gas turbine, identification, modeling, multivariable control, power plant, predictive control

Hadi Ghorbani; Ali Ghaffari; Mehdi Rahnama

2008-06-01T23:59:59.000Z

330

Numerical Early Warning Model Research of Landfill Gas Permeation and Diffusion Considering Flow-Temperature Coupling  

Science Conference Proceedings (OSTI)

Based on seepage mechanics in porous medium gas and heat transfer theory, numerical early warning model is established, which is on quantitative description of migration and release of landfill gas and penetration and diffusion of energy, and dynamic ... Keywords: component, landfill gas, flow-temperature coupling, gas pressure and temperature distribution, numerical early warning model

Xue Qiang; Feng Xia-ting; Ma Shi-jin; Zhou Xiao-jun

2009-10-01T23:59:59.000Z

331

Gas-Liquid Coexistence in the Primitive Model for Water  

E-Print Network (OSTI)

We evaluate the location of the gas-liquid coexistence line and of the associated critical point for the primitive model for water (PMW), introduced by Kolafa and Nezbeda [J. Kolafa and I. Nezbeda, Mol. Phys. 61, 161 (1987)]. Besides being a simple model for a molecular network forming liquid, the PMW is representative of patchy proteins and novel colloidal particles interacting with localized directional short-range attractions. We show that the gas-liquid phase separation is metastable, i.e. it takes place in the region of the phase diagram where the crystal phase is thermodynamically favored, as in the case of articles interacting via short-range attractive spherical potentials. Differently from spherical potentials, we do not observe crystallization close to the critical point. The region of gas-liquid instability of this patchy model is significantly reduced as compared to equivalent models of spherically interacting particles, confirming the possibility of observing kinetic arrest in an homogeneous sample driven by bonding as opposed to packing.

F. Romano; P. Tartaglia; F. Sciortino

2007-03-14T23:59:59.000Z

332

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

Electricity and Natural Gas Prices from Supply- side modulesElectricity and Natural Gas Prices from Supply- side modulesfour supply modules (oil and gas, natural gas transmission

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

333

Liquid-gas phase transition in a two-components isospin lattice gas model for asymmetric nuclear matter  

E-Print Network (OSTI)

A two-components isospin lattice gas model has been employed to study the liquid-gas phase transition for asymmetric nuclear matter. An additional degree of freedom, namely, the asymmetry parameter alpha has been considered carefully for studying the phase transition. We have shown that under the mean field approximation, the liquid-gas phase transition given by this model is of second order. The entropy continues at the phase transition point. The binodal surface is addressed.

Wei Liang Qian; Ru-Keng Su

2002-10-04T23:59:59.000Z

334

A physics-based emissions model for aircraft gas turbine combustors  

E-Print Network (OSTI)

In this thesis, a physics-based model of an aircraft gas turbine combustor is developed for predicting NO. and CO emissions. The objective of the model is to predict the emissions of current and potential future gas turbine ...

Allaire, Douglas L

2006-01-01T23:59:59.000Z

335

How good are supply function equilibrium models: an empirical analysis of the ERCOT balancing market  

E-Print Network (OSTI)

Equilibrium in Electricity Markets,” Journal of RegulatoryModels for Electricity Markets: Stability, Non-DecreasingBritish Electricity Spot Market,” The Journal of Industrial

Sioshansi, Ramteen; Oren, Shmuel

2007-01-01T23:59:59.000Z

336

The Natural Gas Market Model: Equations and data sources  

SciTech Connect

In 1981, EIA began a major study of the impact of natural gas deregulation. Through 1981, the major product of that study was the August 1981 EIA analysis paper entitled ''Analysis of Economic Effects of Accelerated Deregulation of Natural Gas Prices.'' That paper will be referred to as the ''Deregulation Study'' below. The Natural Gas Market Model (NGMM) was the primary model used to produce the forecasts discussed in the Deregulation Study. A modified version of NGMM has been used in the initial runs of the EIA Extended Short-term Forecasting System (ESFS), which is still under development. The purpose of this paper is to provide a comprehensive description of what NGMM is, and of the inputs used with NGMM for the Deregulation Study. The Deregulation Study, and the many documentation reports it cites, contain much information about the substantive studies which led up to the forecasts; however, it does not provide enough detail on how these studies were brought together to permit either a replication or an in-depth evaluation of the forecasts. EIA standards require that models be documented in enough detail to permit replication. This report attempts to fill that gap in documentation, on the basis of a line-by-line audit of the model code, interviews with the model developers, and a replication of the model in the user-oriented system Troll. The report mentions the mechanics of how the solutions are obtained, but not in complete detail. 2 figs., 6 tabs.

Werbos, P.J.

1981-11-01T23:59:59.000Z

337

Economic Modeling of Mid-Term Gas Demand and Electric Generation Capacity Trends  

Science Conference Proceedings (OSTI)

The U.S. power sector natural gas use over the next 10 to 20 years is a topic of significant uncertainty and debate. The industry expects the power sector to be the principal source of growth in national gas demand in the short run; and the manner in which it drives demand and affects the market over the "mid term," to 2020-2030, is an important consideration for planners in both the electric and gas industries. With abundant, relatively low-priced supplies, gas-fired generation can be a strong competito...

2009-12-22T23:59:59.000Z

338

Accuracy of Petroleum Supply Data  

Gasoline and Diesel Fuel Update (EIA)

Accuracy of Petroleum Supply Data Accuracy of Petroleum Supply Data by Tammy G. Heppner and Carol L. French Overview Petroleum supply data collected by the Petroleum Division (PD) in the Office of Oil and Gas (OOG) of the Energy Information Administration (EIA) showed an improvement in the accuracy of the 2005 data from initial estimates, to interim values, to final values. These data were presented in a series of PD products: the Weekly Petroleum Status Report (WPSR), This Week in Petroleum (TWIP), the Petroleum Supply Monthly (PSM), and the Petroleum Supply Annual (PSA). Weekly estimates in the WPSR and TWIP were the first values available. Figure FE1 illustrates that as reporting and review time passes from the weekly estimates to the interim monthly values to the final petroleum supply values, the EIA is able to produce more accurate petroleum supply data. For the monthly-from-weekly (MFW) data, respondents

339

Integrated observations and modelling of greenhouse gas budgets at the ecosystem  

E-Print Network (OSTI)

Mitigation KvR 055/12 Integrated observations and modelling of greenhouse gas budgets Nol | Christy van Beek #12;Integrated observations and modelling of greenhouse gas budgets and modelling of greenhouse gas budgets at the ecosystem level in The Netherlands) was carried out

Stoffelen, Ad

340

An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England  

E-Print Network (OSTI)

with fuel supply markets that captures both the economic network transactions in energy supply chains markets to quantify the interactions in electric power/energy supply chains and their effects on flows% of domestic primary energy [17, 18]. Currently, the electric power industry in the US is undergoing

Nagurney, Anna

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Frontier-based performance analysis models for supply chain management: State of the art and research directions  

Science Conference Proceedings (OSTI)

Effective supply chain management relies on information integration and implementation of best practice techniques across the chain. Supply chains are examples of complex multi-stage systems with temporal and causal interrelations, operating multi-input ... Keywords: Bi-level programming, Data envelopment analysis, Game theory, Supply chain management, Two-stage process

Per J. Agrell, Adel Hatami-Marbini

2013-11-01T23:59:59.000Z

342

Model of medical supply demand and astronaut health for long-duration human space flight  

E-Print Network (OSTI)

The medical care of space crews is the primary limiting factor in the achievement of long-duration space missions. (Nicogossian 2003) The goal of this thesis was to develop a model of long-duration human space flight ...

Assad, Albert

2009-01-01T23:59:59.000Z

343

Reverse supply chain forecasting and decision modeling for improved inventory management  

E-Print Network (OSTI)

This thesis details research performed during a six-month engagement with Verizon Wireless (VzW) in the latter half of 2012. The key outcomes are a forecasting model and decision-support framework to improve management of ...

Petersen, Brian J. (Brian Jude)

2013-01-01T23:59:59.000Z

344

Modeling of solar receiver for cracking of liquid petroleum gas  

SciTech Connect

The paper presents the model of an industrial solar receiver/reactor for thermal cracking of liquid petroleum gas (LPG) at the typical temperature range of 800--850 C. The concentrated solar radiation enters the receiver located on the ground and provided with a compound parabolic concentrator (CPC) at the ceiling. This is achieved with a reflecting solar tower. The radiative model uses the classical concept of equivalent gray plane to represent a panel of 40 cracking tubes placed in parallel of a refractory wall of the receiver. The radiative flux distribution on each wall is calculated and the chemistry in each reactor tube is evaluated until convergence is achieved. The design of an industrial size receiver, its behavior, and performance have been evaluated using this model. The computer program based on this model was run for a variety of flow conditions, feed compositions, and pressures.

Segal, A.; Epstein, M. [Weizmann Inst. of Science, Rehovot (Israel). Solar Research Facilities Unit

1997-02-01T23:59:59.000Z

345

A dark energy model alternative to generalized Chaplygin gas  

E-Print Network (OSTI)

We propose a new fluid model of dark energy for $-1 \\leq \\omega_{\\text{eff}} \\leq 0$ as an alternative to the generalized Chaplygin gas models. The energy density of dark energy fluid is severely suppressed during barotropic matter dominant epochs, and it dominates the universe evolution only for eras of small redshift. From the perspective of fundamental physics, the fluid is a tachyon field with a scalar potential flatter than that of power-law decelerated expansion. Different from the standard $\\Lambda\\text{CDM}$ model, the suggested dark energy model claims that the cosmic acceleration at present epoch can not continue forever but will cease in the near future and a decelerated cosmic expansion will recover afterwards.

Hova, Hoavo

2010-01-01T23:59:59.000Z

346

Natural Gas  

Energy.gov (U.S. Department of Energy (DOE))

The Energy Department supports research and policy options to ensure environmentally sustainable domestic and global supplies of oil and natural gas.

347

Coupled rock motion and gas flow modeling in blasting  

SciTech Connect

The spherical element computer code DMC (Distinct Motion Code) used to model rock motion resulting from blasting has been enhanced to allow routine computer simulations of bench blasting. The enhancements required for bench blast simulation include: (1) modifying the gas flow portion of DMC, (2) adding a new explosive gas equation of state capability, (3) modifying the porosity calculation, and (4) accounting for blastwell spacing parallel to the face. A parametric study performed with DMC shows logical variation of the face velocity as burden, spacing, blastwell diameter and explosive type are varied. These additions represent a significant advance in the capability of DMC which will not only aid in understanding the physics involved in blasting but will also become a blast design tool. 8 refs., 7 figs., 1 tab.

Preece, D.S. (Sandia National Labs., Albuquerque, NM (United States)); Knudsen, S.D. (RE/SPEC, Inc., Albuquerque, NM (United States))

1991-01-01T23:59:59.000Z

348

Supplies of Biomass Natural Gas  

Annual Energy Outlook 2012 (EIA)

Iowa 46 38 3 0 1993-2011 Louisiana 249 435 2010-2011 Nebraska 0 1999-2011 New Jersey 0 1993-2011 New York 1993-2005 Ohio 412 337 379 456 313 269 1993-2011 South Dakota 1999-2005...

349

Supplies of Biomass Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

375 382 508 1,294 1,405 1,573 1993-2012 Alabama 1993-2003 Georgia 52 732 701 660 1993-2012 Illinois 0 1999-2012 Iowa 38 3 1993-2008 Louisiana 249 435 553 2010-2012 Nebraska 0...

350

Supplies of Refinery Natural Gas  

U.S. Energy Information Administration (EIA)

-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: See Definitions ...

351

Econometric Modelling of World Oil Supplies: Terminal Price and the Time to Depletion  

E-Print Network (OSTI)

demand, it is dependent on the world real interest rate and the total life-time stock of oil resources, as well as on the marginal extraction and scarcity cost parameters. The theoretical predictions of this model are evaluated using data on the cost...

Mohaddes, Kamiar

2012-03-02T23:59:59.000Z

352

MODELING AND CONTROL OF A O2/CO2 GAS TURBINE CYCLE FOR CO2 CAPTURE  

E-Print Network (OSTI)

MODELING AND CONTROL OF A O2/CO2 GAS TURBINE CYCLE FOR CO2 CAPTURE Lars Imsland Dagfinn Snarheim and control of a semi-closed O2/CO2 gas turbine cycle for CO2 capture. In the first part the process predictive control, Gas turbines, CO2 capture 1. INTRODUCTION Gas turbines are widely used for power

Foss, Bjarne A.

353

Accounting for fuel price risk: Using forward natural gas prices instead of gas price forecasts to compare renewable to natural gas-fired generation  

E-Print Network (OSTI)

CEC). 2002. Natural Gas Supply and Infrastructureincluded a long-term natural gas supply deal for years 2004fixed-price gas supply contracts and natural gas storage. As

Bolinger, Mark; Wiser, Ryan; Golove, William

2003-01-01T23:59:59.000Z

354

Gas transport model for chemical vapor infiltration. Topical report  

Science Conference Proceedings (OSTI)

A node-bond percolation model is presented for the gas permeability and pore surface area of the coarse porosity in woven fiber structures during densification by chemical vapor infiltration (CVI). Model parameters include the number of nodes per unit volume and their spatial distribution, and the node and bond radii and their variability. These parameters relate directly to structural features of the weave. Some uncertainty exists in the proper partition of the porosity between {open_quotes}node{close_quotes} and{open_quote}bond{close_quotes} and between intra-tow and inter-tow, although the total is constrained by the known fiber loading in the structure. Applied to cloth layup preforms the model gives good agreement with the limited number of available measurements.

Starr, T.L. [Georgia Institute of Technology, Atlanta, GA (United States). School of Materials Science and Engineering

1995-05-01T23:59:59.000Z

355

Arbitrage free cointegrated models in gas and oil future markets  

E-Print Network (OSTI)

In this article we present a continuous time model for natural gas and crude oil future prices. Its main feature is the possibility to link both energies in the long term and in the short term. For each energy, the future returns are represented as the sum of volatility functions driven by motions. Under the risk neutral probability, the motions of both energies are correlated Brownian motions while under the historical probability, they are cointegrated by a Vectorial Error Correction Model. Our approach is equivalent to defining the market price of risk. This model is free of arbitrage: thus, it can be used for risk management as well for option pricing issues. Calibration on European market data and numerical simulations illustrate well its behavior.

Benmenzer, Grégory; Jérusalem, Céline

2007-01-01T23:59:59.000Z

356

A Regional-Scale GIS-Based Modeling System for Evaluating the Potential Costs and Supplies of Biomass from Biomass Crops  

DOE Green Energy (OSTI)

A GIS-based modeling system was developed for analyzing the geographic variation in potential bioenergy feedstock supplies and optimal locations for siting bioenergy facilities. The modeling system is designed for analyzing individual US states but could readily be adapted to any geographic region.

Graham, R.L.; English, B.C.; Noon, C.E.; Liu, W.; Daly, M.J.; Jager, H.I.

1996-06-24T23:59:59.000Z

357

Petroleum Supply Annual  

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

1. TABLE1.PDF 1. TABLE1.PDF Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 190,109 - - - - 264,348 6,359 12,794 445,596 2,425 0 1,039,424 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 73,905 -587 13,044 6,935 - - -11,335 15,883 8,313 80,436 118,039 Pentanes Plus .................................................. 8,824 -587 - - 1,699 - - -805 4,946 2,754 3,041 16,791 Liquefied Petroleum Gases

358

Petroleum Supply Annual  

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

2.PDF 2.PDF Table 12. PAD District 5 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,180 - - - - 1,014 - 146 29 2,312 - 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 69 0 33 6 - - - -25 83 20 30 Pentanes Plus .................................................. 33 0 - - - - - - -1 27 4 3 Liquefied Petroleum Gases .............................. 37 - - 33 6 - - - -24 56 17 27 Ethane/Ethylene

359

Petroleum Supply Monthly  

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

September 2013 Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 233,810 - - - - 237,344 8,334 7,688 468,825 2,975 0 1,067,149 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 81,196 -552 19,023 4,020 - - 3,027 16,794 13,937 69,929 189,672 Pentanes Plus .................................................. 11,167 -552 - - 772 - - -700 5,666 2,989 3,432 18,036 Liquefied Petroleum Gases

360

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 1. U.S. Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 182,188 - - - - 270,188 2,576 -6,767 460,074 1,646 0 1,026,829 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 72,869 -607 11,545 7,801 - - -12,921 17,534 6,391 80,604 128,709 Pentanes Plus .................................................. 9,170 -607 - - 2,421 - - 1,146 5,321 2,200 2,317 17,598 Liquefied Petroleum Gases

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 17. PAD District 4 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 12,175 - - - - 10,226 -3,426 -1,436 132 17,407 1 0 15,969 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 12,584 -10 52 460 -10,314 - - -12 611 282 1,891 1,375 Pentanes Plus .................................................. 1,788 -10 - - - -1,036 - - -15 174 273 310 180 Liquefied Petroleum Gases

362

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 15. PAD District 3 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 3,327 - - - - 4,646 -720 39 -191 7,482 - 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,380 -1 304 84 227 - - -113 306 108 1,693 Pentanes Plus .................................................. 155 -1 - - 77 -58 - - 35 106 1 31 Liquefied Petroleum Gases ..............................

363

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 9. PAD District 2 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 29,019 - - - - 52,699 26,041 2,973 12 109,175 1,544 0 93,189 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 14,079 -560 812 2,541 -423 - - -6,605 4,051 2,114 16,889 48,197 Pentanes Plus .................................................. 1,354 -560 - - 21 2,843 - - 110 1,049

364

Petroleum Supply Monthly  

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

2 2 September 2013 Table 16. PAD District 3 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 4,354 - - - - 3,718 -413 345 75 7,905 24 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,615 0 454 39 170 - - 62 282 267 1,666 Pentanes Plus .................................................. 195 0 - - 36 -65 - - 15 113 4 35 Liquefied Petroleum Gases

365

Petroleum Supply Annual  

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

TABLE9.PDF TABLE9.PDF Table 9. PAD District 4 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 12,961 - - - - 10,783 -3,879 896 2,868 17,893 0 0 18,695 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 12,770 -9 127 502 -11,116 - - -50 621 280 1,423 1,326 Pentanes Plus .................................................. 1,484 -9 - - - -1,152 - - 7 122 264 -70 187 Liquefied Petroleum Gases

366

Petroleum Supply Annual  

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

.PDF .PDF Table 3. PAD District 1 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 734 - - - - 26,368 419 -1,209 627 25,554 130 0 10,529 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,314 -6 923 1,606 2,621 - - -1,556 707 53 7,254 6,409 Pentanes Plus .................................................. 213 -6 - - - - - - 3 5 6 193 34 Liquefied Petroleum Gases ..............................

367

Petroleum Supply Annual  

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

TABLE5.PDF TABLE5.PDF Table 5. PAD District 2 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 29,902 - - - - 53,695 23,732 5,619 2,406 108,247 2,295 0 95,547 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 13,989 -544 1,333 2,797 949 - - -6,644 3,628 2,687 18,853 41,545 Pentanes Plus .................................................. 1,274 -544 - - 11 4,162 - - 233 966

368

Petroleum Supply Monthly  

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

September 2013 Table 4. U.S. Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 7,340 - - - - 7,778 239 25 15,229 104 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,516 -18 716 175 - - 133 465 434 2,358 Pentanes Plus .................................................. 340 -18 - - 38 - - 20 168 134 38 Liquefied Petroleum Gases .............................. 2,176 - - 716

369

Petroleum Supply Monthly  

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

4 4 September 2013 Table 18. PAD District 4 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 139,573 - - - - 79,019 -46,108 -13,333 1,073 158,068 10 0 19,287 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 86,184 -86 3,535 3,052 -71,945 - - 423 4,378 4,054 11,885 1,893 Pentanes Plus ..................................................

370

Petroleum Supply Monthly  

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

30 30 September 2013 Table 24. PAD District 5 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 1,101 - - - - 1,091 - 115 -14 2,320 1 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 65 0 67 5 - - - 13 63 14 47 Pentanes Plus .................................................. 29 0 - - - - - - 1 21 4 3 Liquefied Petroleum Gases ..............................

371

Petroleum Supply Annual  

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

.PDF .PDF Table 2. U.S. Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 6,133 - - - - 8,527 205 413 14,374 78 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,384 -19 421 224 - - -366 512 268 2,595 Pentanes Plus .................................................. 285 -19 - - 55 - - -26 160 89 98 Liquefied Petroleum Gases .............................. 2,099 - - 421 169 - - -340 353 179 2,497 Ethane/Ethylene

372

Petroleum Supply Monthly  

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

6 6 September 2013 Table 10. PAD District 2 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 366,285 - - - - 501,418 159,175 -109,633 -12,929 918,349 11,825 0 102,610 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 122,918 -4,579 37,556 21,926 4,444 - - 15,132 24,244 34,819 108,070 58,830 Pentanes Plus ..................................................

373

Petroleum Supply Monthly  

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

20 20 September 2013 Table 14. PAD District 3 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 1,188,751 - - - - 1,015,091 -112,708 94,064 20,399 2,158,191 6,608 0 882,207 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 440,766 -88 123,986 10,625 46,383 - - 16,960 76,972 72,880 454,860 114,138 Pentanes Plus ..................................................

374

Petroleum Supply Monthly  

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

September 2013 Table 2. U.S. Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 2,003,948 - - - - 2,123,490 65,265 6,899 4,157,486 28,318 0 1,067,149 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 686,936 -4,909 195,516 47,812 - - 36,219 127,051 118,364 643,721 189,672 Pentanes Plus .................................................. 92,842 -4,909 - - 10,243 - -

375

Petroleum Supply Annual  

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

1.PDF 1.PDF Table 11. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 36,593 - - - - 31,429 - 4,534 890 71,666 - 0 55,877 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,154 -11 1,013 192 - - - -786 2,587 629 918 3,544 Pentanes Plus .................................................. 1,013 -11 - - - - - - -35 842 110 85 36 Liquefied Petroleum Gases ..............................

376

Petroleum Supply Annual  

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

TABLE7.PDF TABLE7.PDF Table 7. PAD District 3 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil 6 ............................................................ 109,919 - - - - 142,073 -20,272 -3,481 6,003 222,236 - 0 858,776 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 43,678 -17 9,648 1,838 7,546 - - -2,299 8,340 4,663 51,989 65,215 Pentanes Plus .................................................. 4,840 -17 - - 1,688 -3,010 - -

377

Petroleum Supply Monthly  

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

4 4 September 2013 Table 8. PAD District 1 - Year-to-Date Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 32 - - - - 843 -1 230 8 1,061 35 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 71 0 45 40 77 - - 1 16 10 205 Pentanes Plus .................................................. 12 0 - - 1 0 - - 0 0 2 9 Liquefied Petroleum Gases ..............................

378

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 3. U.S. Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply Disposition Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 5,877 - - - - 8,716 83 -218 14,841 53 0 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 2,351 -20 372 252 - - -417 566 206 2,600 Pentanes Plus .................................................. 296 -20 - - 78 - - 37 172 71 75 Liquefied Petroleum Gases .............................. 2,055 - - 372 174 - - -454 394 135 2,525

379

Petroleum Supply Monthly  

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

8 8 September 2013 Table 22. PAD District 5 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 300,668 - - - - 297,837 - 31,342 -3,713 633,292 267 0 52,719 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 17,739 -73 18,288 1,401 - - - 3,536 17,170 3,791 12,858 8,270 Pentanes Plus .................................................. 7,914

380

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 Table 5. PAD District 1 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 751 - - - - 26,471 -300 1,308 -869 28,999 100 0 9,902 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 1,313 -7 839 2,091 3,702 - - -929 816 33 8,018 7,618 Pentanes Plus .................................................. 225 -7 - - - - - - 3 - 11 204 31 Liquefied Petroleum Gases

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381

Petroleum Supply Monthly  

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

September 2013 Table 6. PAD District 1 - Year-to-Date Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, January-September 2013 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports (PADD of Entry) 1 Net Receipts 2 Adjust- ments 3 Stock Change 4 Refinery and Blender Net Inputs Exports Products Supplied 5 Crude Oil ............................................................. 8,672 - - - - 230,125 -359 62,824 2,069 289,586 9,606 0 10,326 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 19,329 -83 12,151 10,808 21,118 - - 168 4,287 2,821 56,047 6,541 Pentanes Plus ..................................................

382

Natural gas transmission and distribution model of the National Energy Modeling System  

SciTech Connect

The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of Integrated Analysis and Forecasting of the Energy Information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. From 1982 through 1993, the Intermediate Future Forecasting System (IFFS) was used by the EIA for its analyses, and the Gas Analysis Modeling System (GAMS) was used within IFFS to represent natural gas markets. Prior to 1982, the Midterm Energy Forecasting System (MEFS), also referred to as the Project Independence Evaluation System (PIES), was employed. NEMS was developed to enhance and update EIA`s modeling capability by internally incorporating models of energy markets that had previously been analyzed off-line. In addition, greater structural detail in NEMS permits the analysis of a broader range of energy issues. The time horizon of NEMS is the midterm period (i.e., through 2015). In order to represent the regional differences in energy markets, the component models of NEMS function at regional levels appropriate for the markets represented, with subsequent aggregation/disaggregation to the Census Division level for reporting purposes.

1997-02-01T23:59:59.000Z

383

Gas-Phase Diffusion in Porous Media: Comparison of Models Stephen W. Webb  

Office of Scientific and Technical Information (OSTI)

Gas-Phase Diffusion in Porous Media: Comparison of Models Gas-Phase Diffusion in Porous Media: Comparison of Models Stephen W. Webb Sandia National Laboratories Albuquerque, New Mexico 87 185 ABSTRACT Two models are commonly used to analyze gas- phase diffusion in porous media in the presence of advection, the Advective-Dispersive Model (ADM) and the Dusty-gas Model (DGM). The ADM, which is used in TOUGH2, is based on a simple linear addition of advection calculated by Darcy's law and ordinary diffusion using Fick's law with a porosity- tortuosity-gas saturation multiplier to account for the porous medium. Another approach for gas-phase transport in porous media is the Dusty-Gas Model. This model applies the kinetic theory of gases to the gaseous components and the porous media (or "dust") to combine transport due to diffusion and

384

Motor Systems Efficiency Supply Curves  

NLE Websites -- All DOE Office Websites (Extended Search)

expert opinion and available data from the United States, Canada, the European Union, Thailand, Vietnam, and Brazil, bottom-up energy efficiency supply curve models were...

385

Application of RBF-type ARX Modeling and Control to Gas Turbine Combined Cycle SCR Systems  

E-Print Network (OSTI)

Application of RBF-type ARX Modeling and Control to Gas Turbine Combined Cycle SCR Systems Y, nonlinear model-based predictive control, energy saving. 1. INTRODUCTION In Japan, GTCC(Gas Turbine Combined gas-firing GTCC power plant is most effective in terms of thermal efficiency and lower CO2 energy

Ozaki, Tohru

386

Power supply  

DOE Patents (OSTI)

A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

2007-12-04T23:59:59.000Z

387

Observational Constraints of New Variable Modified Chaplygin Gas Model  

E-Print Network (OSTI)

Assuming the flat FRW universe in Einstein's gravity filled with New Variable Modified Chaplygin gas (NVMCG) dark energy and dark matter having negligible pressure. In this research work we analyze the viability on the basis of recent observation. Hubble parameter $H$ is expressed in terms of the observable parameters $H_0$, $\\Omega_m^0$ and the model parameters $A_0$, $B_0$, $C_0$, $m$, $n$, $\\alpha$ and the red shift parameter $z$. Here we find a best fitted parameter range of $A_0$, $B_0$ keeping $0\\leq \\alpha \\leq 1$ and using Stern data set (12 points) by minimizing the $\\chi^2$ test at 66%, 90% and 99% confidence levels. Next we do the joint analysis with BAO and CMB observations. Again evaluating the distance modulus $\\mu(z)$ vs redshift ($z$) curve obtained in the model NVMCG with dark matter with the best fitted value of the parameters and comparing with that derived from the union2 compilation data.

Jhumpa Bhadra; Ujjal Debnath

2012-11-09T23:59:59.000Z

388

Conserved number fluctuations in a hadron resonance gas model  

E-Print Network (OSTI)

Net-baryon, net-charge and net-strangeness number fluctuations in high energy heavy-ion collisions are discussed within the framework of a hadron resonance gas (HRG) model. Ratios of the conserved number susceptibilities calculated in HRG are being compared to the corresponding experimental measurements to extract information about the freeze-out condition and the phase structure of systems with strong interactions. We emphasize the importance of considering the actual experimental acceptances in terms of kinematics (pseudorapidity ($\\eta$) and transverse momentum ($p_{T}$)), the detected charge state, effect of collective motion of particles in the system and the resonance decay contributions before comparisons are made to the theoretical calculations. In this work, based on HRG model, we report that the net-baryon number fluctuations are least affected by experimental acceptances compared to the net-charge and net-strangeness number fluctuations.

P. Garg; D. K. Mishra; P. K. Netrakanti; B. Mohanty; A. K. Mohanty; B. K. Singh; N. Xu

2013-04-26T23:59:59.000Z

389

Econometric Modelling of World Oil Supplies: Terminal Price and the Time to Depletion  

E-Print Network (OSTI)

This paper develops a novel approach by which to identify the price of oil at the time of depletion; the so-called "terminal price " of oil. It is shown that while the terminal price is independent of both GDP growth and the price elasticity of energy demand, it is dependent on the world real interest rate and the total life-time stock of oil resources, as well as on the marginal extraction and scarcity cost parameters. The theoretical predictions of this model are evaluated using data on the cost of extraction, cumulative production, and proven reserves. The predicted terminal prices seem sensible for a range of parameters and variables, as illustrated by the sensitivity analysis. Using the terminal price of oil, we calculate the time to depletion, and determine the extraction and price pro…les over the life-time of the resource. The extraction pro…les generated seem to be in line with the actual production and the predicted prices are generally in line with those currently observed.

Kamiar Mohaddes

2013-01-01T23:59:59.000Z

390

An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England  

E-Print Network (OSTI)

the prices of fuels at energy markets and the transportation/distribution costs in making their economic the fuel price at each energy fuel market am. Since this paper focuses on the electric power supply chain markets that captures both the economic network transactions in energy supply markets and the physical

Nagurney, Anna

391

NETL: Oil & Natural Gas Events  

NLE Websites -- All DOE Office Websites (Extended Search)

Home > Technologies > Oil and Natural Gas Supply > Events Oil and Natural Gas Supply Events The following is a listing of events of interest to the oil and natural gas community....

392

Ammonia concentration modeling based on retained gas sampler data  

Science Conference Proceedings (OSTI)

The vertical ammonia concentration distributions determined by the retained gas sampler (RGS) apparatus were modeled for double-shell tanks (DSTs) AW-101, AN-103, AN-104, and AN-105 and single-shell tanks (SSTs) A-101, S-106, and U-103. One the vertical transport of ammonia in the tanks were used for the modeling. Transport in the non-convective settled solids and floating solids layers is assumed to occur primarily via some type of diffusion process, while transport in the convective liquid layers is incorporated into the model via mass transfer coefficients based on empirical correlations. Mass transfer between the top of the waste and the tank headspace and the effects of ventilation of the headspace are also included in the models. The resulting models contain a large number of parameters, but many of them can be determined from known properties of the waste configuration or can be estimated within reasonable bounds from data on the waste samples themselves. The models are used to extract effective diffusion coefficients for transport in the nonconvective layers based on the measured values of ammonia from the RGS apparatus. The modeling indicates that the higher concentrations of ammonia seen in bubbles trapped inside the waste relative to the ammonia concentrations in the tank headspace can be explained by a combination of slow transport of ammonia via diffusion in the nonconvective layers and ventilation of the tank headspace by either passive or active means. Slow transport by diffusion causes a higher concentration of ammonia to build up deep within the waste until the concentration gradients between the interior and top of the waste are sufficient to allow ammonia to escape at the same rate at which it is being generated in the waste.

Terrones, G.; Palmer, B.J.; Cuta, J.M.

1997-09-01T23:59:59.000Z

393

EIA - Natural Gas Publications  

Annual Energy Outlook 2012 (EIA)

and a weather snapshot. Monthly Natural Gas Monthly Natural and supplemental gas production, supply, consumption, disposition, storage, imports, exports, and prices in the...

394

Historical Natural Gas Annual  

Annual Energy Outlook 2012 (EIA)

8 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

395

Historical Natural Gas Annual  

Gasoline and Diesel Fuel Update (EIA)

7 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

396

Historical Natural Gas Annual  

Annual Energy Outlook 2012 (EIA)

6 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

397

Power supply  

SciTech Connect

An electric power supply employs a striking means to initiate ferroelectric elements which provide electrical energy output which subsequently initiates an explosive charge which initiates a second ferroelectric current generator to deliver current to the coil of a magnetic field current generator, creating a magnetic field around the coil. Continued detonation effects compression of the magnetic field and subsequent generation and delivery of a large output current to appropriate output loads.

Hart, Edward J. (Albuquerque, NM); Leeman, James E. (Albuquerque, NM); MacDougall, Hugh R. (Albuquerque, NM); Marron, John J. (Albuquerque, NM); Smith, Calvin C. (Amarillo, TX)

1976-01-01T23:59:59.000Z

398

California GAMA Special Study: An isotopic and dissolved gas investigation of nitrate source and transport to a public supply well in California's Central Valley  

Science Conference Proceedings (OSTI)

This study investigates nitrate contamination of a deep municipal drinking water production well in Ripon, CA to demonstrate the utility of natural groundwater tracers in constraining the sources and transport of nitrate to deep aquifers in the Central Valley. The goal of the study was to investigate the origin (source) of elevated nitrate and the potential for the deep aquifer to attenuate anthropogenic nitrate. The site is ideal for such an investigation. The production well is screened from 165-325 feet below ground surface and a number of nearby shallow and deep monitoring wells were available for sampling. Furthermore, potential sources of nitrate contamination to the well had been identified, including a fertilizer supply plant located approximately 1000 feet to the east and local almond groves. A variety of natural isotopic and dissolved gas tracers including {sup 3}H-{sup 3}He groundwater age and the isotopic composition of nitrate are applied to identify nitrate sources and to characterize nitrate transport. An advanced method for sampling production wells is employed to help identify contaminant contributions from specific screen intervals. Nitrate transport: Groundwater nitrate at this field site is not being actively denitrified. Groundwater parameters indicate oxic conditions, the dissolved gas data shows no evidence for excess nitrogen as the result of denitrification, and nitrate-N and -O isotope compositions do not display patterns typical of denitrification. Contaminant nitrate source: The ambient nitrate concentration in shallow groundwater at the Ripon site ({approx}12 mg/L as nitrate) is typical of shallow groundwaters affected by recharge from agricultural and urban areas. Nitrate concentrations in Ripon City Well 12 (50-58 mg/L as nitrate) are significantly higher than these ambient concentrations, indicating an additional source of anthropogenic nitrate is affecting groundwater in the capture zone of this municipal drinking water well. This study provides two new pieces of evidence that the Ripon Farm Services Plant is the source of elevated nitrate in Ripon City Well 12. (1) Chemical mass balance calculations using nitrate concentration, nitrate isotopic composition, and initial tritium activity all indicate that that the source water for elevated nitrate to Ripon City Well 12 is a very small component of the water produced by City Well 12 and thus must have extremely high nitrate concentration. The high source water nitrate concentration ({approx}1500 mg/L as nitrate) required by these mass balance calculations precludes common sources of nitrate such as irrigated agriculture, dairy wastewater, and septic discharge. Shallow groundwater under the Ripon Farm Services RFS plant does contain extremely high concentrations of nitrate (>1700 mg/L as nitrate). (2) Nitrogen and oxygen isotope compositions of nitrate indicate that the additional anthropogenic nitrate source to Ripon City Well 12 is significantly enriched in {delta}{sup 18}O-NO{sub 3}, an isotopic signature consistent with synthetic nitrate fertilizer, and not with human or animal wastewater discharge (i.e. dairy operations, septic system discharge, or municipal wastewater discharge), or with organic fertilizer. Monitoring wells on and near the RFS plant also have high {delta}{sup 18}O-NO{sub 3}, and the plant has handled and stored synthetic nitrate fertilizer that will have this isotopic signature. The results described here highlight the complexity of attributing nitrate found in long screened, high capacity wells to specific sources. In this case, the presence of a very high concentration source near the well site combined with sampling using multiple isotopic tracer techniques and specialized depth-specific techniques allowed fingerprinting of the source in the mixed-age samples drawn from the production well.

Singleton, M J; Moran, J E; Esser, B K; Roberts, S K; Hillegonds, D J

2010-04-14T23:59:59.000Z

399

Critical Feynman-Wilson gas: A model for multiparticle physics  

SciTech Connect

We develop a model in which hadron production in the true asymptotic region proceeds via the exchange of a factorizable singularity at J = 1, which implies a sensible meson spectrum. The rise of the hadronic total cross section and the inclusive plateau are ascribed to threshold effects of this mechanism, which is estimated to take effect at Fermilab energies. In the true asymptotic region the total cross section decreases like a small power of the rapidity, while fireball structure appears in the one-particle distribution. Both the exclusive (multiperipheral) and inclusive (Mueller) approaches are exploited. The discussion is in the language of statistical mechanics and our key assumptions are (i) existence of sensible thermodynamic limit, (ii) Koba-Nielsen-Olesen scaling, and (iii) factorization. We show that the nearest-neighbour interaction implied in the Feynman-Wilson ''gas'' by our factorizable singularity is responsible for its critical behaviour at infinite rapidity.

Antoniou, N.G.; Vlassopulos, S.D.P.

1978-12-01T23:59:59.000Z

400

System Modeling of Gas Engine Driven Heat Pump  

SciTech Connect

To improve the system performance of the GHP, modeling and experimental study has been made by using desiccant system in cooling operation (particularly in high humidity operations) and suction line waste heat recovery to augment heating capacity and efficiency. The performance of overall GHP system has been simulated by using ORNL Modulating Heat Pump Design Software, which is used to predict steady-state heating and cooling performance of variable-speed vapor compression air-to-air heat pumps for a wide range of operational variables. The modeling includes: (1) GHP cycle without any performance improvements (suction liquid heat exchange and heat recovery) as a baseline (both in cooling and heating mode), (2) the GHP cycle in cooling mode with desiccant system regenerated by waste heat from engine incorporated, (3) GHP cycle in heating mode with heat recovery (recovered heat from engine). According to the system modeling results, by using desiccant system regenerated by waste heat from engine, the SHR can be lowered to 40%. The waste heat of the gas engine can boost the space heating efficiency by 25% in rated operating conditions.

Mahderekal, Isaac [Oak Ridge National Laboratory (ORNL); Shen, Bo [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Modeling Gas Transport in the Shallow Subsurface During the ZERT CO2 Release Test  

E-Print Network (OSTI)

Research Forum (PERF) Dense Gas Dispersion Modeling Project,Atmospheric dispersion of dense gases, Ann. Rev. Fluidgas (LNG) terminals and transport, and emphasize atmospheric dispersion

Oldenburg, Curtis M.

2009-01-01T23:59:59.000Z

402

Gas generation and bubble formation model for crystalline silicotitanate ion exchange columns  

SciTech Connect

The authors developed a transient model to describe the process of gas generation due to radiolysis and bubble formation in crystalline silicotitanate (CST) ion exchange (IX) columns using the Aspen Custom Modeler (ACM) software package. The model calculates gas concentrations and onset of bubble formation for large CST IX columns. The calculations include cesium loading as a function of time, gas generation as a function of cesium loading, and bubble formation as a function of gas solubility. This report summarizes the model development and predictions.

Hang, T.

2000-07-19T23:59:59.000Z

403

A model for stratified gas-liquid turbulent flow in ducts of arbitrary cross-section  

E-Print Network (OSTI)

93 A model for stratified gas-liquid turbulent flow in ducts of arbitrary cross-section J. M the pressure gradient and the liquid fraction in two-phase gas- liquid fully developed stratified flow.60 Nomenclature. - TWO-PHASE VARIABLES. Definition densities statistical average (gas, liquid) mass average phase

Paris-Sud XI, Université de

404

The Hybrid Solid Oxide Fuel Cell (SOFC) and Gas Turbine (GT) Systems Steady State Modeling  

E-Print Network (OSTI)

The Hybrid Solid Oxide Fuel Cell (SOFC) and Gas Turbine (GT) Systems Steady State Modeling Penyarat plants offer high cycle efficiencies. In this work a hybrid solid oxide fuel cell and gas turbine power, Gas turbine, Hybrid, Solid Oxide Fuel Cell hal-00703135,version1-31May2012 Author manuscript

Paris-Sud XI, Université de

405

A Mixed Complementarity-Based Equilibrium Model of Natural Gas Markets  

Science Conference Proceedings (OSTI)

We present a new multiseasonal, multiyear, natural gas market equilibrium model based on the concept of a competitive equilibrium involving the market participants: producers, storage reservoir operators, peak gas operators, pipeline operators, marketers, ... Keywords: games/group decisions: noncooperative, industries: petroleum/natural gas, marketing: competitive strategy, natural resources: energy, programming: complementarity

Steven A. Gabriel; Supat Kiet; Jifang Zhuang

2005-09-01T23:59:59.000Z

406

Hybrid modeling of industrial energy consumption and greenhouse gas emissions with an application to Canada  

E-Print Network (OSTI)

Hybrid modeling of industrial energy consumption and greenhouse gas emissions with an application explore the implications for Canada's industrial sector of an economy-wide, compulsory greenhouse gas of these strengths is linked to challenges when it comes to forecasting the impact of greenhouse gas policy. We

407

Field validation of the DNDC model for greenhouse gas emissions in East Asian cropping systems  

E-Print Network (OSTI)

Field validation of the DNDC model for greenhouse gas emissions in East Asian cropping systems annual variations of greenhouse gas emissions from cropping systems and effects of land management a powerful tool for estimating greenhouse gas emissions from terrestrial ecosystems. INDEX TERMS: 1610 Global

408

Kinetic Model of Gas Bubble Dissolution in Groundwater and Its  

E-Print Network (OSTI)

appear to be more important for the composition of the gas excess than the differences between molecular in both natural and technical gas exchange processes. In chemical engineering systems, the dissolution that the composition of the excess gas does not correspond to atmospheric air (8). Excess air and its fractionation

Aeschbach-Hertig, Werner

409

Petroleum supply monthly, February 1994  

Science Conference Proceedings (OSTI)

The Petroleum Supply Monthly presents data describing the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the US. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders; operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. Data are divided into two sections: Summary statistics and Detailed statistics.

Not Available

1994-03-01T23:59:59.000Z

410

Petroleum supply monthly, April 1994  

Science Conference Proceedings (OSTI)

Data presented in the Petroleum Supply Monthly (PSM) describe the supply and disposition of petroleum products in the United States and major US geographical regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the US. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the US.

Not Available

1994-04-01T23:59:59.000Z

411

Assessment of Supply Chain Energy Efficiency Potentials: A U.S. Case Study  

E-Print Network (OSTI)

for average natural gas-related supply chain GHG emissions.3: E STIMATED 2002 SUPPLY CHAIN NATURAL GAS - RELATED GHGsupply chain GHG emissions attributable to electricity and natural gas

Masanet, Eric

2010-01-01T23:59:59.000Z

412

Grain Boundary Percolation Modeling of Fission Gas Release in Oxide Fuels  

Science Conference Proceedings (OSTI)

We present a new approach to fission gas release modeling in oxide fuels based on grain boundary network percolation. The method accounts for variability in the bubble growth and coalescence rates on individual grain boundaries, and the resulting effect on macroscopic fission gas release. Two-dimensional representa- tions of fuel pellet microstructures are considered, and the resulting gas release rates are compared with traditional two-stage Booth models, which do not account for long-range percolation on grain boundary net- works. The results show that the requirement of percolation of saturated grain boundaries can considerably reduce the total gas release rates, particularly when gas resolution is considered.

Paul C. Millett; Michael R. Tonks; S. B. Biner

2012-05-01T23:59:59.000Z

413

Evaluation of Efficiency Activities in the Industrial Sector Undertaken in Response to Greenhouse Gas Emission Reduction Targets  

E-Print Network (OSTI)

to reduce energy use. Natural Gas Supply System: Two majorenergy used by the natural gas supply system. These include

Price, Lynn

2010-01-01T23:59:59.000Z

414

Overview of Avista GHG Modeling NPCC Greenhouse Gas and the Regional Power System Conference  

E-Print Network (OSTI)

6/5/2013 1 Overview of Avista GHG Modeling NPCC Greenhouse Gas and the Regional Power System Natural Gas CO2 Emissions A Bridge to a Low Carbon Future, or the Future? 815 1,190 lbs/MWh Gas CCCT has ~35% of coal emissions on a per-MWh basis Gas CT has ~50% of coal emissions on a per-MWh basis 119 119

415

Petroleum Supply Annual  

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

January 2012 January 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 190,109 - - - - 264,348 6,359 12,794 445,596 2,425 0 1,039,424 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 73,905 -587 13,044 6,935 - - -11,335 15,883 8,313 80,436 118,039 Pentanes Plus .................................................. 8,824 -587 - - 1,699 - - -805 4,946 2,754 3,041 16,791 Liquefied Petroleum Gases .............................. 65,081 - - 13,044 5,236 - - -10,530 10,937 5,559 77,395 101,248 Ethane/Ethylene

416

Petroleum Supply Annual  

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

2012 2012 (Thousand Barrels) Commodity Supply Disposition Ending Stocks Field Production Renewable Fuels and Oxygenate Plant Net Production Refinery and Blender Net Production Imports Adjust- ments 1 Stock Change 2 Refinery and Blender Net Inputs Exports Products Supplied 3 Crude Oil 4 ............................................................ 2,374,021 - - - - 3,120,755 53,567 34,134 5,489,516 24,693 0 1,060,764 Natural Gas Plant Liquids and Liquefied Refinery Gases ................................................... 881,306 -6,534 230,413 62,192 - - 23,894 186,270 115,054 842,159 153,268 Pentanes Plus .................................................. 116,002 -6,534 - - 10,680 - - -4,857 63,596 43,136 18,273 12,739 Liquefied Petroleum Gases .............................. 765,304 - - 230,413 51,512 - - 28,751 122,674 71,918

417

A practical model to predict gas hydrate formation, dissociation and transportability in oil and gas flowlines.  

E-Print Network (OSTI)

??The oil and gas industry is facing very challenging production issues with offshore explorations in deeper and colder waters. Longer subsea tiebacks will be required… (more)

Zerpa, Luis Eduardo

2013-01-01T23:59:59.000Z

418

Implications of a Regime-Switching Model on Natural Gas Storage Valuation and Optimal Operation  

E-Print Network (OSTI)

In this paper, we propose a one-factor regime-switching model for the risk adjusted natural gas spot price and study the implications of the model on the valuation and optimal operation of natural gas storage facilities. We calibrate the model parameters to both market futures and options on futures. Calibration results indicate that the regime-switching model is a better fit to market data compared to a one-factor mean-reverting model similar to those used by other authors to value gas storage. We extend a semi-Lagrangian timestepping scheme from Chen and Forsyth (2007) to solve the gas storage pricing problem, essentially a stochastic control problem, and conduct a convergence analysis of the scheme. Numerical results also indicate that the regime-switching model can generate operational strategies for gas storage facilities that reflect the existence of multiple regimes in the market as well as the regime shifts due to various exogenous events.

Zhuliang Chen; Peter A. Forsyth

2007-01-01T23:59:59.000Z

419

An Algorithm for Identification of Reduced-Order Dynamic Models of Gas Turbines  

Science Conference Proceedings (OSTI)

Model based approaches show a lot of advantages for fault detection and condition monitoring. Particularly, it is true in employing reduced order models for real-time parameter identification and output prediction of gas turbines. Many algorithms have ...

Xuewu Dai; Tim Breikin; Hong Wang

2006-08-01T23:59:59.000Z

420

A Coupled CFD-Thermodynamic-Kinetic Model to Simulate a Gas ...  

Science Conference Proceedings (OSTI)

For this purpose, argon gas stirring is commonly used. ... Modeling of Solidification Benchmark of Sn-3% Pb Wt. Alloy under Natural Convection ... CFD Model for Prediction of Liquid Steel Temperature in Ladle during Steel Making and Casting.

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Implications of a Regime-Switching Model on Natural Gas Storage Valuation and Optimal Operation  

E-Print Network (OSTI)

approximate the seasonality trend in the futures price data. Meanwhile, the table reveals a strong annual-switching model for the risk adjusted natural gas spot price and study the implications of the model) to solve the gas storage pricing problem, essentially a stochastic control problem, and conduct

Forsyth, Peter A.

422

Mixed Integer Model Predictive Control of Multiple Shale Gas Wells.  

E-Print Network (OSTI)

?? Horizontal wells with multistage hydraulic fracturing are today the most important drilling technology for shale gas extraction. Considered unprofitable before, the production has now… (more)

Nordsveen, Espen T

2012-01-01T23:59:59.000Z

423

Gas turbine combustion modeling for a Parametric Emissions Monitoring System.  

E-Print Network (OSTI)

??Oxides of nitrogen (NOx), carbon monoxide (CO) and other combustion by-products of gas turbines have long been identified as harmful atmospheric pollutants to the environment… (more)

Honegger, Ueli

2007-01-01T23:59:59.000Z

424

Modeling Of Hydraulic Fracture Network Propagation In Shale Gas Reservoirs.  

E-Print Network (OSTI)

??The most effective method for stimulating shale gas reservoirs is massive hydraulic fracture treatments. Recent fracture diagnostic technologies such as microseismic technology have shown that… (more)

Ahn, Chong

2012-01-01T23:59:59.000Z

425

Numerical Modeling of Gas Recovery from Methane Hydrate Reservoirs.  

E-Print Network (OSTI)

??ABSTRACTClass 1 hydrate deposits are characterized by a hydrate bearing layer underlain by a two phase, free-gas and water, zone. A Class 1 hydrate reservoir… (more)

Silpngarmlert, Suntichai

2007-01-01T23:59:59.000Z

426

Modeling Injection and Ignition in Direct Injection Natural Gas Engines.  

E-Print Network (OSTI)

??With increasing concerns about the harmful effects of conventional liquid fossil fuel emissions, natural gas has become a very attractive alternative fuel to power prime… (more)

Cheng, Xu Jr.

2008-01-01T23:59:59.000Z

427

REGIONAL WATER SUPPLY PLANNING AND  

E-Print Network (OSTI)

accepted standards, which is an important planning aspect for water supply agencies. Yeh et al. (2000CHAPTER 3 REGIONAL WATER SUPPLY PLANNING AND CAPACITY EXPANSION MODELS Messele Z. Ejeta California Department of Water Resources Sacramento, California Larry W. Mays Department of Civil and Environmental

Mays, Larry W.

428

The Polyakov loop and the hadron resonance gas model  

E-Print Network (OSTI)

The Polyakov loop has been used repeatedly as an order parameter in the deconfinement phase transition in QCD. We argue that, in the confined phase, its expectation value can be represented in terms of hadronic states, similarly to the hadron resonance gas model for the pressure. Specifically, L(T) \\approx 1/2\\sum_\\alpha g_\\alpha e^(-\\Delta_\\alpha/T), where g_\\alpha are the degeneracies and \\Delta_\\alpha are the masses of hadrons with exactly one heavy quark (the mass of the heavy quark itself being subtracted). We show that this approximate sum rule gives a fair description of available lattice data with N_f=2+1 at low temperatures by using the spectrum of hadrons containing one charmed quark, and the \\bar{MS}-scheme charmed quark mass. A direct fit to this latter quantity yields a close value, m_c=1280_{-44}^{+29}MeV. The lattice data are well reproduced by a simplified version of this formula, L(T)= N_f(2N_f+3)e^(-\\Delta/T), for T < 200 MeV and Delta=913(2)MeV. We argue that this number should be Delta ...

Megias, E; Salcedo, L L

2012-01-01T23:59:59.000Z

429

Quantifying the value that wind power provides as a hedge against volatile natural gas prices  

E-Print Network (OSTI)

supply contracts and natural gas storage. Lacking sufficientsupply contracts and natural gas storage facilities. Since,

Bolinger, Mark; Wiser, Ryan; Golove, William

2002-01-01T23:59:59.000Z

430

Why Supply Chain  

E-Print Network (OSTI)

Why supply chain explains the importance of supply chains. It includes an introduction to ERP as designed by SAP.

Datta, Shoumen

2000-01-01T23:59:59.000Z

431

Steady-state model for estimating gas production from underground coal gasification  

Science Conference Proceedings (OSTI)

A pseudo-one-dimensional channel model has been developed to estimate gas production from underground coal gasification. The model incorporates a zero-dimensional steady-state cavity growth submodel and models mass transfer from the bulk gas to the coal wall using a correlation for natural convection. Simulations with the model reveal that the gas calorific value is sensitive to coal reactivity and the exposed reactive surface area per unit volume in the channel. A comparison of model results with several small-scale field trials conducted at Centralia in the U.S.A. show that the model can make good predictions of the gas production and composition under a range of different operating conditions, including operation with air and steam/oxygen mixtures. Further work is required to determine whether the model formulation is also suitable for simulating large-scale underground coal gasification field trials.

Greg Perkins; Veena Sahajwalla [University of New South Wales, Sydney, NSW (Australia). School of Materials Science and Engineering

2008-11-15T23:59:59.000Z

432

Easing the natural gas crisis: Reducing natural gas prices through increased deployment of renewable energy and energy efficiency  

E-Print Network (OSTI)

1 2. Natural Gas Supply and Demand: A Review of Economicand the shape of the natural gas supply curve (measured byprice elasticity of natural gas supply). The reduction is

Wiser, Ryan; Bolinger, Mark; St. Clair, Matt

2004-01-01T23:59:59.000Z

433

Long Term World Oil Supply  

Gasoline and Diesel Fuel Update (EIA)

0 0 Notes: The following pages summarize a recent EIA presentation on estimates of the world conventional oil resource base and the year when production from it will peak and then begin to decline. A version of this presentation was given by former EIA Administrator Jay Hakes to the April 18, 2000 meeting of the American Association of Petroleum Geologists in New Orleans, Louisiana. Specific information about this presentation may be obtained from John Wood (john.wood@eia.doe.gov), Gary Long (gary.long@eia.doe.gov) or David Morehouse (david.morehouse@eia.doe.gov). Long Term World Oil Supply http://www.eia.doe.gov/pub/oil_gas/petroleum/presentations/2000/long_term_supply/sld001.htm [8/10/2000 4:56:23 PM] Slide 2 of 20 http://www.eia.doe.gov/pub/oil_gas/petroleum/presentations/2000/long_term_supply/sld002.htm [8/10/2000 4:56:24 PM]

434

Accuracy of Petroleum Supply Data  

Gasoline and Diesel Fuel Update (EIA)

in in the Office of Oil and Gas (OOG) of the Energy Information Administration (EIA) showed an improvement in the accuracy of the 2006 data from initial estimates, to interim values, to final values. These data were presented in a series of PD products: the Weekly Petroleum Status Report (WPSR), This Week in Petroleum (TWIP), the Petroleum Supply Monthly (PSM), and the Petroleum Supply Annual (PSA). Weekly estimates in the WPSR and TWIP were the first values available. Figure FE1 illustrates that just as there was an improvement in gas mileage over time, there was an improvement in petroleum supply data accuracy with increasing review time. For the monthly-from-weekly (MFW) data, respondents have the shortest reporting time, analysts have the shortest review time, and the data are least accurate. For the PSM data, respondents have a longer reporting time than the weekly, analysts have

435

Assessment of Supply Chain Energy Efficiency Potentials: A U.S. Case Study  

SciTech Connect

This paper summarizes a modeling framework that characterizes the key underlying technologies and processes that contribute to the supply chain energy use and greenhouse gas (GHG) emissions of a variety of goods and services purchased by U.S. consumers. The framework couples an input-output supply chain modeling approach with"bottom-up" fuel end use models for individual IO sectors. This fuel end use modeling detail allows energy and policy analysts to better understand the underlying technologies and processes contributing to the supply chain energy and GHG"footprints" of goods and services. To illustrate the policy-relevance of thisapproach, a case study was conducted to estimate achievable household GHG footprint reductions associated with the adoption of best practice energy-efficient supply chain technologies.

Masanet, Eric; Kramer, Klaas Jan; Homan, Gregory; Brown, Richard; Worrell, Ernst

2009-01-01T23:59:59.000Z

436

The 3He Supply Problem  

Science Conference Proceedings (OSTI)

One of the main uses for 3He is in gas proportional counters for neutron detection. Radiation portal monitors deployed for homeland security and non-proliferation use such detectors. Other uses of 3He are for research detectors, commercial instruments, well logging detectors, dilution refrigerators, for targets or cooling in nuclear research, and for basic research in condensed matter physics. The US supply of 3He comes almost entirely from the decay of tritium used in nuclear weapons by the US and Russia. A few other countries contribute a small amount to the world’s 3He supply. Due to the large increase in use of 3He for homeland security, the supply has dwindled, and can no longer meet the demand. This white paper reviews the problems of supply, utilization, and alternatives.

Kouzes, Richard T.

2009-05-01T23:59:59.000Z

437

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

E-Print Network (OSTI)

the Changing U.S. Natural Gas Supply. Dallas, TX, Americanthe Changing U.S. Natural Gas Supply. Dallas, TX, Tiax LLC.LNG and Changing U.S. Natural Gas Supply. Dallas, TX, Gas

Lekov, Alex

2010-01-01T23:59:59.000Z

438

Quantifying the value that wind power provides as a hedge against volatile natural gas prices  

E-Print Network (OSTI)

hedges include fixed-price natural gas supply contractsfixed-price gas supply contracts and natural gas storage.natural gas storage facilities. Since, in contrast to many financial hedges, physical supply

Bolinger, Mark; Wiser, Ryan; Golove, William

2002-01-01T23:59:59.000Z

439

Estimating Policy-Driven Greenhouse Gas Emissions Trajectories in California: The California Greenhouse Gas Inventory Spreadsheet (GHGIS) Model  

NLE Websites -- All DOE Office Websites (Extended Search)

Estimating Policy-Driven Greenhouse Estimating Policy-Driven Greenhouse Gas Emissions Trajectories in California: The California Greenhouse Gas Inventory Spreadsheet (GHGIS) Model Jeffery B. Greenblatt Energy Analysis and Environmental Impacts Department Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, CA 94720 November 2013 This work was supported by the Research Division, California Air Resources Board under ARB Agreement No. 12-329. LBNL-6451E DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of

440

Models, Simulators, and Data-driven Resources for Oil and Natural Gas Research  

DOE Data Explorer (OSTI)

NETL provides a number of analytical tools to assist in conducting oil and natural gas research. Software, developed under various DOE/NETL projects, includes numerical simulators, analytical models, databases, and documentation.[copied from http://www.netl.doe.gov/technologies/oil-gas/Software/Software_main.html] Links lead users to methane hydrates models, preedictive models, simulators, databases, and other software tools or resources.

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Natural gas annual 1994  

SciTech Connect

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.

NONE

1995-11-17T23:59:59.000Z

442

Natural gas annual 1995  

Science Conference Proceedings (OSTI)

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.

NONE

1996-11-01T23:59:59.000Z

443

Rip Singularity Scenario and Bouncing Universe in a Chaplygin Gas Dark Energy Model  

E-Print Network (OSTI)

We choose a modified Chaplygin Gas Dark energy model for considering some its cosmological behaviors. In this regards, we study different Rip singularity scenarios and bouncing model of the universe in context of this model. We show that by using suitable parameters can explain some cosmological aspects of the model.

S. Davood Sadatian

2013-09-28T23:59:59.000Z

444

Natural Gas - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Natural Gas Explained Factors affecting natural gas prices. Natural gas prices are a function of market supply and demand. Due to limited alternatives for natural gas ...

445

Assessing Reliability In Hydrogen Supply Pathways  

E-Print Network (OSTI)

gas and petroleum exports Other suppliers pose greater threats (Potential) importsImport terminals – Global LNG tanker fleet – Domestic natural gasgas supply LNG dependence on other systems Essentially 100% imports

McCarthy, Ryan; Ogden, Joan M

2005-01-01T23:59:59.000Z

446

NETL: Oil and Natural Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Supply Technologies Oil and Natural Gas Supply Oil and natural gas are the lifeblood of our economy, accounting for more than 60 percent of the energy consumed in the United...

447

Caloric curve for nuclear liquid-gas phase transition in relativistic mean-field hadronic model  

E-Print Network (OSTI)

The main thermodynamical properties of the nuclear liquid-gas phase transition were explored in the framework of the relativistic mean-field hadronic model in three statistical ensembles: canonical, grand canonical and isobaric. We have found that the liquid-gas phase transition, i.e., the first order phase transition which is defined by the plateau in the isotherms, cannot contain the plateau in the caloric curves in the canonical and microcanonical ensembles. The plateau in the isotherms is incompatible with the plateau in the caloric curves at fixed baryon density. Moreover, for the nuclear liquid-gas phase transition the caloric curve has a plateau only at fixed pressure or chemical potential. The results of the statistical multifragmentation models for the nuclear liquid-gas phase transition were reanalyzed. It was revealed that one class of statistical multifragmentation models do indeed predict the nuclear liquid-gas phase transition for the nuclear multifragmentation. However, there is another class o...

Parvan, A S

2011-01-01T23:59:59.000Z

448

Impact of Rotor Surface Velocity, Leakage Models and Real Gas Properties on Rotordynamic Force Predictions of Gas Labyrinth Seals  

E-Print Network (OSTI)

Rotordynamic coefficients of a gas labyrinth seal are assumed to be frequency independent. However, this assumption loses its validity as rotor surface velocity approaches Mach 1. The solution procedure of 1CV model by Childs and Scharrer which assumes frequency independent force coefficients is modified to allow for calculating frequency dependent force coefficients. A comparative study of the impact of using frequency-dependent model and the original frequency-independent model on stability analysis is made. The results indicate that frequency dependency of force coefficients should be accounted for in stability analysis as rotor surface velocity approaches a significant fraction of Mach number. The bulk flow rotordynamic analysis model by Childs and Scharrer is modified to investigate the impact of leakage-flow models on predictions. A number of leakage models are incorporated in the one-control volume model, and a comparative study is made. Kinetic energy carryover factor of a leakage equation is one of the dominant factors in seal cross-force generation. A leakage equation based on a model proposed by Gamal which uses Hodkinson?s kinetic energy carryover factor is found to improve predictions of direct damping and cross-coupled stiffness. A test case is implemented to study the impact of variation of seal axial radial clearance on stability characteristics. The 1CV model by Childs and Scharrer and subsequent bulk flow models are based on the assumption of isothermal flow across the labyrinth seal. The 1CV model by Childs and Scharrer is modified to include energy equation, and the flow process is assumed to be adiabatic. However, predicted cross-coupled stiffness and direct damping coefficients using the new model do not compare well with the experimental results by Picardo as compared to the isothermal model. The impact of using real gas properties on static and rotordynamic characteristics of the seal is studied.

Thorat, Manish R.

2010-05-01T23:59:59.000Z

449

Interacting polytropic gas model of phantom dark energy in non-flat universe  

E-Print Network (OSTI)

By introducing the polytropic gas model of interacting dark energy, we obtain the equation of state for the polytropic gas energy density in a non-flat universe. We show that for even polytropic index by choosing $K>Ba^{\\frac{3}{n}}$, one can obtain $\\omega^{\\rm eff}_{\\Lambda}dark energy.

K. Karami; S. Ghaffari; J. Fehri

2009-11-25T23:59:59.000Z

450

MathematicalGeology, Vol. 11,No. I,1979 Modeling and Optimizing a Gas-Water Reservoir  

E-Print Network (OSTI)

Recovery with waterflooding'*- Mark E.Johnson,2EllisA. Mona&: and Michael S. Watermad Accepted practice the optimal production strategy. Essentially, this strategy is to refrain from waterflooding until the minimum strategy to be optimal. THE GAS-WATERFLOOD RESERVOIR MODEL The mathematical details of the gas-waterflood

Waterman, Michael S.

451

Historical Natural Gas Annual 1999  

Gasoline and Diesel Fuel Update (EIA)

1999 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

452

CFD modeling of a gas turbine combustor from compressor exit to turbine inlet  

SciTech Connect

Gas turbine combustor CFD modeling has become an important combustor design tool in the past few years, but CFD models are generally limited to the flow field inside the combustor liner at the diffuser/combustor annulus region. Although strongly coupled in reality, the two regions have rarely been coupled in CFD modeling. A CFD calculation for a full model combustor from compressor diffuser exit to turbine inlet is described. The coupled model accomplishes the following two main objectives: (1) implicit description of flow splits and flow conditions for openings into the combustor liner, and (2) prediction of liner wall temperatures. Conjugate heat transfer with nonluminous gas radiation (appropriate for lean, low emission combustors) is utilized to predict wall temperatures compared to the conventional approach of predicting only near wall gas temperatures. Remaining difficult issues such as generating the grid, modeling swirler vane passages, and modeling effusion cooling are also discussed.

Crocker, D.S.; Nickolaus, D.; Smith, C.E. [CFD Research Corp., Huntsville, AL (United States)

1999-01-01T23:59:59.000Z

453

Phenomenological Varying Modified Chaplygin Gas with Variable $G$ and $?$: Toy Models for Our Universe  

E-Print Network (OSTI)

This article motivated by the recent articles and results of two authors. Recently, J. Sadeghi and H. Farahani presented a work [1], where they include viscosity and analyze general model, by this way they extended models considered by M. Khurshudyan [2] and [3]. In this article, We tempt to consider varying Modified Chaplygin gas model in case of variable $G$ and $\\Lambda$. It is well known, that varying $G$ and $\\Lambda$ gives rise to modified field equations and modified conservation laws. We will consider two different toy models. First model is a Universe with one component phenomenological gas of our consideration, while for the second model we assume existence of a composed fluid of gas and a matter with $P=\\omega(t)\\rho_{m}$. Sign changeable interaction between fluids is accepted. We will analyze important cosmological parameters like EoS parameter of a fluid, deceleration parameter $q$ of the model.

J. Sadeghi; M. Khurshudyan; H. Farahani

2013-08-08T23:59:59.000Z

454

Statefinder diagnostic and $w-w^{\\prime}$ analysis for interacting polytropic gas dark energy model  

E-Print Network (OSTI)

The interacting polytropic gas dark energy model is investigated from the viewpoint of statefinder diagnostic tool and $w-w^{\\prime}$ analysis. The dependency of the statefinder parameters on the parameter of the model as well as the interaction parameter between dark matter and dark energy is calculated. We show that different values of the parameters of model and different values of interaction parameter result different evolutionary trajectories in $s-r$ and $w-w^{\\prime}$ planes. The polytropic gas model of dark energy mimics the standard $\\Lambda$CDM model at the early time.

M. Malekjani; A. Khodam-Mohammadi

2012-01-03T23:59:59.000Z

455

Quantifying the value that energy efficiency and renewable energy provide as a hedge against volatile natural gas prices  

E-Print Network (OSTI)

supply contracts and natural gas storage. Lacking sufficientsupply contracts and natural gas storage facilities. Since,

Bolinger, Mark; Wiser, Ryan; Bachrach, Devra; Golove, William

2002-01-01T23:59:59.000Z

456

Compilation of gas intrusion measurements, variations, and consequence modeling for SPR caverns.  

Science Conference Proceedings (OSTI)

The intrusion of gas into oils stored within the SPR has been examined. When oil is stored in domal salts, gases intrude into the stored oil from the surrounding salt. Aspects of the mechanism of gas intrusion have been examined. In all cases, this gas intrusion results in increases in the oil vapor pressure. Data that have been gathered from 1993 to August 2002 are presented to show the resultant increases in bubble-point pressure on a cavern-by-cavern as well as on a stream basis. The measurement techniques are presented with particular emphasis on the TVP 95. Data analysis methods are presented to show the methods required to obtain recombined cavern oil compositions. Gas-oil ratios are also computed from the data and are presented on a cavern-by-cavern and stream basis. The observed increases in bubble-point pressure and gas-oil ratio are further statistically analyzed to allow data interpretation. Emissions plume modeling is used to determine adherence to state air regulations. Gas intrusion is observed to be variable among the sites and within each dome. Gas intrusions at Bryan Mound and Big Hill have resulted in the largest increases in bubble-point pressure for the Strategic Petroleum Reserve (SPR). The streams at Bayou Choctaw and West Hackberry show minimal bubble-point pressure increases. Emissions plume modeling, using the state mandated ISCST code, of oil storage tanks showed that virtually no gas may be released when H2S standards are considered. DOE plans to scavenge H2S to comply with the very tight standards on this gas. With the assumption of scavenging, benzene releases become the next most controlling factor. Model results show that a GOR of 0.6 SCF/BBL may be emissions that are within standards. Employing the benzene gas release standard will significantly improve oil deliverability. New plume modeling using the computational fluid dynamics code, FLUENT, is addressing limitations of the state mandated ISCST model.

Hinkebein, Thomas E.

2003-03-01T23:59:59.000Z

457

Petroleum supply monthly, January 1994  

SciTech Connect

Data presented describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States. The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States.

Not Available

1994-01-01T23:59:59.000Z

458

Accounting for fuel price risk: Using forward natural gas prices instead of gas price forecasts to compare renewable to natural gas-fired generation  

E-Print Network (OSTI)

supply contracts and natural gas storage. As shown below insupply contracts and natural gas storage. As shown below in

Bolinger, Mark; Wiser, Ryan; Golove, William

2003-01-01T23:59:59.000Z

459

GAS TURBINES  

E-Print Network (OSTI)

In the age of volatile and ever increasing natural gas fuel prices, strict new emission regulations and technological advancements, modern IGCC plants are the answer to growing market demands for efficient and environmentally friendly power generation. IGCC technology allows the use of low cost opportunity fuels, such as coal, of which there is a more than a 200-year supply in the U.S., and refinery residues, such as petroleum coke and residual oil. Future IGCC plants are expected to be more efficient and have a potential to be a lower cost solution to future CO2 and mercury regulations compared to the direct coal fired steam plants. Siemens has more than 300,000 hours of successful IGCC plant operational experience on a variety of heavy duty gas turbine models in Europe and the U.S. The gas turbines involved range from SGT5-2000E to SGT6-3000E (former designations are shown on Table 1). Future IGCC applications will extend this experience to the SGT5-4000F and SGT6-4000F/5000F/6000G gas turbines. In the currently operating Siemens ’ 60 Hz fleet, the SGT6-5000F gas turbine has the most operating engines and the most cumulative operating hours. Over the years, advancements have increased its performance and decreased its emissions and life cycle costs without impacting reliability. Development has been initiated to verify its readiness for future IGCC application including syngas combustion system testing. Similar efforts are planned for the SGT6-6000G and SGT5-4000F/SGT6-4000F models. This paper discusses the extensive development programs that have been carried out to demonstrate that target emissions and engine operability can be achieved on syngas operation in advanced F-class 50 Hz and 60 Hz gas turbine based IGCC applications.

Power For L; Satish Gadde; Jianfan Wu; Anil Gulati; Gerry Mcquiggan; Berthold Koestlin; Bernd Prade

2006-01-01T23:59:59.000Z

460

An integrated performance model for high temperature gas cooled reactor coated particle fuel  

E-Print Network (OSTI)

The performance of coated fuel particles is essential for the development and deployment of High Temperature Gas Reactor (HTGR) systems for future power generation. Fuel performance modeling is indispensable for understanding ...

Wang, Jing, 1976-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Strategic Eurasian Natural Gas Model for Energy Security  

E-Print Network (OSTI)

fossil fuels (such as coal or oil).4 In 2009, natural gas consumption in the EU totalled 503 billion cubic metres (bcm) (or about a quarter of total primary energy consumption) (IEA, 2010). By 2030, consumption was projected to grow at an average...

Chyong, Chi-Kong; Hobbs, Benjamin F.

2011-04-06T23:59:59.000Z

462

A computer model of gas generation and transport within TRU waste drums  

DOE Green Energy (OSTI)

A computer model has been developed to predict radiolytic gas generation and transport within Transuranic (TRU) waste drums and surrounding enclosures. Gas generation from the radiolytic decomposition of organic material contaminated with plutonium is modeled and the concentrations of gas throughout the waste drum and enclosures are determined using a diffusional transport model. The model accurately reproduces experimentally measured gas concentrations. With polyethylene waste in unvented drums, the model predicts that the concentration of hydrogen gas can exceed 4 mole percent (lower flammable limit) with only about 5 curies of plutonium. If the drum liner is punctured and an unrestricted 0.75-in. carbon composite filter vent is installed in the drum lid, the plutonium loading can be increased to 240 Ci without generating flammable gas mixtures. Larger diameter filters can be used to increase the curie loading. The model has been used to show that shipments of 1000 Ci of plutonium-238 contaminated waste from Savannah River to the WIPP site are feasible using the TRUPACT shipping container. 10 refs., 17 figs., 6 tabs.

Smith, F.G. III

1988-06-01T23:59:59.000Z

463

Analytical model of the temperature dependent properties of microresonators immersed in a gas  

SciTech Connect

A comprehensive theoretical model of microresonators immersed in a viscous gas of varying temperature is presented and verified by experiments. Analytical expressions for both the temperature dependent resonant frequency and quality factor of the first flexural eigenmode were derived extending Sader's theory of viscous damping to small temperature variations. The model provides useful implications for the thermal stabilization of microresonators immersed in a gas as well as for the reduction in the influence of the temperature dependent gas properties on the resonant frequency. Finally, an analytical expression is deduced for the mass detection capability of a microresonator that undergoes temperature variations.

Ilin, E. A.; Kehrbusch, J.; Radzio, B.; Oesterschulze, E. [Physics and Technology of Nanostructures, Nano-Bio-Center, University of Kaiserslautern, Erwin-Schroedinger Strasse 46, 67663 Kaiserslautern (Germany)

2011-02-01T23:59:59.000Z

464

Petroleum Supply Annual  

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

0.PDF Table 10. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

465

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 Table 21. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition...

466

Petroleum Supply Annual  

Annual Energy Outlook 2012 (EIA)

TABLE8.PDF Table 8. PAD District 3 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

467

Petroleum Supply Annual  

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

TABLE4.PDF Table 4. PAD District 1 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

468

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

May 2013 Table 21. PAD District 5 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, May 2013 (Thousand Barrels) Commodity Supply Disposition Ending...

469

Petroleum Supply Monthly  

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

5 May 2013 Table 19. PAD District 4 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, May 2013 (Thousand Barrels per Day) Commodity Supply Disposition...

470

Petroleum Supply Monthly  

Gasoline and Diesel Fuel Update (EIA)

December 2011 Table 11. PAD District 2 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels per Day) Commodity Supply...

471

Petroleum Supply Annual  

Gasoline and Diesel Fuel Update (EIA)

TABLE6.PDF Table 6. PAD District 2 - Daily Average Supply and Disposition of Crude Oil and Petroleum Products, January 2011 (Thousand Barrels per Day) Commodity Supply Disposition...

472

Petroleum Supply Monthly  

Annual Energy Outlook 2012 (EIA)

December 2011 Table 13. PAD District 3 - Supply, Disposition, and Ending Stocks of Crude Oil and Petroleum Products, December 2011 (Thousand Barrels) Commodity Supply Disposition...

473

Modeling twin-screw multiphase pump performance during periods of high gas volume fraction  

E-Print Network (OSTI)

Multiphase pumping is a new technology used for reducing capital investments, increasing production rates, and improving recoveries in many on-shore projects. Interest is also growing in the subsea/offshore application of this technology. Multiphase pumping adds energy to an unprocessed effluent stream acting as a combined pump and compressor, permitting the recovery of oil and gas on an economical basis. In practice, multiphase production is characterized by wide fluctuations in the gas and liquid mass flow rates. During periods of substantial gas flow, temperature becomes the critical variable determining the performance of the pump. Without the liquid phase to remove the gas compression heat, temperatures in the discharge gas stream begin to rise causing a decrease in efficiency, a high temperature shut-in of the pump, and damage to the pump. While this behavior has been observed in lab experiments and in the field, a review of literature reveals that no mechanistic model exists for predicting the performance of a twin-screw pump under high gas volume flow conditions. Also, very few data are available under high GVF conditions. Both large-scale experiments and mechanistic modeling were performed as part of this research. This thesis models the behavior of a twin-screw multiphase pump under high gas volume fraction conditions. The model of the pump is based on fundamental principles of thermodynamic and fluid mechanics. The specific experimental tasks undertaken in this work include studying the volumetric pump performance during periods of high gas volume fractions, the observation of temperature increase with time under periods of 100% gas volume fraction and studying the effect of viscosity on high GVF performance. The results indicate that the pump can be operated during periods of 100% gas volume fractions. The volumetric efficiency of the twin-screw multiphase pump during periods of high to 100% gas volume fractions can be improved by increasing the viscosity of the process stream or by injecting high viscosity fluids into the pump casing. At 94-95% gas volume fraction the system transitions from isothermal conditions. And the system moves from isothermal to adiabatic (uncooled) conditions with time. A model has been generated that predicts temperature increase with time as a function of the key parameters of pump speed, differential pressure, mass flow rate, specific heat and slip flow. This model can be used to develop novel control philosophies for operating multiphase pumps during high gas volume fractions.

Singh, Aditya

2003-01-01T23:59:59.000Z

474

Valuing a gas-fired power plant: A comparison of ordinary linear models, regime-switching approaches, and models with stochastic volatility  

E-Print Network (OSTI)

and natural gas daily spot prices and suggests that with the aim of valuing a gas-fired power plant, there is limited information about modelling electricity and natural gas spot prices distinctly, i.e., taking-run evolution of energy prices, such as oil, coal, and natural gas, and suggests that although the long

475

Quantifying the value that energy efficiency and renewable energy provide as a hedge against volatile natural gas prices  

E-Print Network (OSTI)

hedges include fixed- price natural gas supply contractsfixed-price gas supply contracts and natural gas storage.natural gas storage facilities. Since, in contrast to many financial hedges, physical supply

Bolinger, Mark; Wiser, Ryan; Bachrach, Devra; Golove, William

2002-01-01T23:59:59.000Z

476

Reducing the Environmental Footprint and Economic Costs of Automotive Manufacturing through an Alternative Energy Supply  

E-Print Network (OSTI)

fuel cell power plants use natural gas as their fuel tothe natural gas supplied to the fuel cell power plant is

Yuan, Chris; Dornfeld, David

2009-01-01T23:59:59.000Z

477

Petroleum supply monthly, July 1993  

SciTech Connect

Data presented in the Petroleum Supply Monthly (PSM) describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in primary supply. Included are: Petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States.

1993-07-29T23:59:59.000Z

478

Development of a natural gas systems analysis model (GSAM). Annual report, July 1994--June 1995  

SciTech Connect

North American natural gas markets have changed dramatically over the past decade. A competitive, cost-conscious production, transportation, and distribution system has emerged from the highly regulated transportation wellhead pricing structure of the 1980`s. Technology advances have played an important role in the evolution of the gas industry, a role likely to expand substantially as alternative fuel price competition and a maturing natural gas resource base force operators to maximize efficiency. Finally, significant changes continue in regional gas demand patterns, industry practices, and infrastructure needs. As the complexity of the gas system grows so does the need to evaluate and plan for alternative future resource, technology, and market scenarios. Traditional gas modeling systems focused solely on the econometric aspects of gas marketing. These systems, developed to assess a regulated industry at a high level of aggregation, rely on simple representation of complex and evolving systems, thereby precluding insight into how the industry will change over time. Credible evaluations of specific policy initiatives and research activities require a different approach. Also, the mounting pressure on energy producers from environmental compliance activities requires development of analysis that incorporates relevant geologic, engineering, and project economic details. The objective of policy, research and development (R&D), and market analysis is to integrate fundamental understanding of natural gas resources, technology, and markets to fully describe the potential of the gas resource under alternative future scenarios. This report summarizes work over the past twelve months on DOE Contract DE-AC21-92MC28138, Development of a Natural Gas Systems Analysis Model (GSAM). The products developed under this project directly support the Morgantown Energy Technology Center (METC) in carrying out its natural gas R&D mission.

NONE

1995-07-01T23:59:59.000Z

479

DEVELOPMENT AND VALIDATION OF A MULTIFIELD MODEL OF CHURN-TURBULENT GAS/LIQUID FLOWS  

DOE Green Energy (OSTI)

The accuracy of numerical predictions for gas/liquid two-phase flows using Computational Multiphase Fluid Dynamics (CMFD) methods strongly depends on the formulation of models governing the interaction between the continuous liquid field and bubbles of different sizes. The purpose of this paper is to develop, test and validate a multifield model of adiabatic gas/liquid flows at intermediate gas concentrations (e.g., churn-turbulent flow regime), in which multiple-size bubbles are divided into a specified number of groups, each representing a prescribed range of sizes. The proposed modeling concept uses transport equations for the continuous liquid field and for each bubble field. The overall model has been implemented in the NPHASE-CMFD computer code. The results of NPHASE-CMFD simulations have been validated against the experimental data from the TOPFLOW test facility. Also, a parametric analysis on the effect of various modeling assumptions has been performed.

Elena A. Tselishcheva; Steven P. Antal; Michael Z. Podowski; Donna Post Guillen

2009-07-01T23:59:59.000Z

480

Abstract--Modelling and control of gas turbines (GTs) have always been a controversial issue because of the complex  

E-Print Network (OSTI)

Abstract--Modelling and control of gas turbines (GTs) have always been a controversial issue that there is no end to the efforts for performance optimization of gas turbines. A variety of analytical and experimental models as well as control systems has been built so far for gas turbines. However, the need

Sainudiin, Raazesh

Note: This page contains sample records for the topic "gas supply model" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Supplies of Natural Gas Supplemental Fuels (Annual Supply & Dispositio...  

Annual Energy Outlook 2012 (EIA)

Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2007 2008 2009 2010 2011...

482

LPG fuel supply system. [Patent for automotive  

SciTech Connect

A fuel supply system for an internal combustion engine operated on gaseous fuels, for example, liquid petroleum gas (Lpg). The system includes a housing having a chamber for vaporizing liquid gas, including means for heating the vaporizing chamber. Also included in the housing is a mixing chamber for mixing the vaporized gas with incoming air for delivery to the intake manifold of an internal combustion engine through a standard carburetor. The fuel supply system includes means for mounting the system on the carburetor, including means for supporting an air filter circumjacent the mixing chamber.

Pierson, W.V.

1982-09-07T23:59:59.000Z

483

Enhanced Generic Phase-field Model of Irradiation Materials: Fission Gas Bubble Growth Kinetics in Polycrystalline UO2  

SciTech Connect

Experiments show that inter-granular and intra-granular gas bubbles have different growth kinetics which results in heterogeneous gas bubble microstructures in irradiated nuclear fuels. A science-based model predicting the heterogeneous microstructure evolution kinetics is desired, which enables one to study the effect of thermodynamic and kinetic properties of the system on gas bubble microstructure evolution kinetics and morphology, improve the understanding of the formation mechanisms of heterogeneous gas bubble microstructure, and provide the microstructure to macroscale approaches to study their impact on thermo-mechanical properties such as thermo-conductivity, gas release, volume swelling, and cracking. In our previous report 'Mesoscale Benchmark Demonstration, Problem 1: Mesoscale Simulations of Intra-granular Fission Gas Bubbles in UO2 under Post-irradiation Thermal Annealing', we developed a phase-field model to simulate the intra-granular gas bubble evolution in a single crystal during post-irradiation thermal annealing. In this work, we enhanced the model by incorporating thermodynamic and kinetic properties at grain boundaries, which can be obtained from atomistic simulations, to simulate fission gas bubble growth kinetics in polycrystalline UO2 fuels. The model takes into account of gas atom and vacancy diffusion, vacancy trapping and emission at defects, gas atom absorption and resolution at gas bubbles, internal pressure in gas bubbles, elastic interaction between defects and gas bubbles, and the difference of thermodynamic and kinetic properties in matrix and grain boundaries. We applied the model to simulate gas atom segregation at grain boundaries and the effect of interfacial energy and gas mobility on gas bubble morphology and growth kinetics in a bi-crystal UO2 during post-irradiation thermal annealing. The preliminary results demonstrate that the model can produce the equilibrium thermodynamic properties and the morphology of gas bubbles at grain boundaries for given grain boundary properties. More validation of the model capability in polycrystalline is underway.

Li, Yulan; Hu, Shenyang Y.; Montgomery, Robert O.; Gao, Fei; Sun, Xin

2012-05-30T23:59:59.000Z

484

HIGH DETAIL STATIONARY OPTIMIZATION MODELS FOR GAS NETWORKS --PART 1: MODEL COMPONENTS.  

E-Print Network (OSTI)

SCHMIDT, MARC C. STEINBACH, BERNHARD M. WILLERT Abstract. Economic reasons and the regulation of gas markets create a growing need for mathematical optimization in natural gas networks. Real life planning after fixing discrete decisions with coarsely approximated physics. 1. Introduction Natural gas plays

Steinbach, Marc

485

Petroleum Supply Monthly, August 1990  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of three publications produced by the Petroleum Supply Division within the Energy Information administration (EIA) reflecting different levels of data timeliness and completeness. The other two publications are the Weekly Petroleum Status Report (WPSR) and the Petroleum Supply Annual (PSA). Data presented in the PSM describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) district movements, and inventories by the primary suppliers of petroleum products in the United States (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in Primary Supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States. Data presented in the PSM are divided into two sections (1) the Summary Statistics and (2) the Detailed Statistics.

Not Available

1990-10-30T23:59:59.000Z

486

Petroleum supply monthly, September 1991  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of three publications produced by the Petroleum Supply Division within the Energy Information Administration (EIA) reflecting different levels of data timeliness and completeness. The other two publications are the Weekly Petroleum Status Report (WPSR) and the Petroleum Supply Annual (PSA). Data presented in PSM describe the supply and disposition of petroleum products in the United States and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administrations for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States (50 states and the District of Columbia). The reporting universe includes those petroleum sectors in Primary Supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. When aggregated, the data reported by these sectors approximately represent the consumption of petroleum products in the United States. Data presented in the PSM are divided into two sections (1) the Summary Statistics and (2) the Detailed Statistics. 65 tabs.

Not Available

1991-09-30T23:59:59.000Z

487

Petroleum supply monthly, January 1996  

SciTech Connect

The Petroleum Supply Monthly (PSM) is one of a family of four publications produced by the Petroleum Supply</