56 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Natural Gas"  
Results: 1 - 24 next
open access

Sensitivity of natural gas HCCI combustion to fuel and operating parameters using detailed kinetic modeling

Description: This paper uses the HCT (Hydrodynamics, Chemistry and Transport) chemical kinetics code to analyze natural gas HCCI combustion in an engine. The HCT code has been modified to better represent the conditions existing inside an engine, including a wall heat transfer correlation. Combustion control and low power output per displacement remain as two of the biggest challenges to obtaining satisfactory performance out of an HCCI engine, and these are addressed in this paper. The paper considers the … more
Date: July 19, 1999
Creator: Aceves, S.; Dibble, R.; Flowers, D.; Smith, J. R. & Westbrook, C. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Comparison of AEO 2006 Natural Gas Price Forecast to NYMEX FuturesPrices

Description: On December 12, 2005, the reference case projections from ''Annual Energy Outlook 2006'' (AEO 2006) were posted on the Energy Information Administration's (EIA) web site. We at LBNL have in the past compared the EIA's reference case long-term natural gas price forecasts from the AEO series to contemporaneous natural gas prices that can be locked in through the forward market, with the goal of better understanding fuel price risk and the role that renewables play in mitigating such risk (see, fo… more
Date: December 19, 2005
Creator: Bolinger, Mark & Wiser, Ryan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low Pressure Storage of Natural Gas for Vehicular Applications

Description: Natural gas is an attractive fuel for vehicles because it is a relatively clean-burning fuel compared with gasoline. Moreover, methane can be stored in the physically adsorbed state [at a pressure of 3.5 MPa (500 psi)] at energy densities comparable to methane compressed at 24.8 MPa (3600 psi). Here we report the development of natural gas storage monoliths [1]. The monolith manufacture and activation methods are reported along with pore structure characterization data. The storage capacities o… more
Date: June 19, 2000
Creator: Burchell, Tim & Rogers, Mike
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of In-SITU Stress and Permeability in Fractured Reservoirs

Description: Expanded details and additional results are presented on two methods for estimating fracture orientation and density in subsurface reservoirs from scattered seismic wavefield signals. In the first, fracture density is estimated from the wavenumber spectra of the integrated amplitudes of the scattered waves as a function of offset in pre-stack data. Spectral peaks correctly identified the 50m, 35m, and 25m fracture spacings from numerical model data using a 40Hz source wavelet. The second method… more
Date: July 19, 2004
Creator: Burns, Daniel R. & Toksoz, M. Nafi
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE ORIGIN OF LIFE ON EARTH AND ELSEWHERE. II

Description: The synthesis of relatively complex organic molecules by ionizing and radical mechanisms (induced by high energy radiations, ultraviolet and electric discharge) from methane, ammonia, water, and hydrogen is described, both theoretically and experimentally. It is shown that the molecules which tend to be formed under such random conditions are the very ones which today are the common building blocks in the biological reconstruction of organic material. Such molecules are the amino acids, the sim… more
Date: October 19, 1960
Creator: Calvin, Melvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Natural Gas for Cars and Trucks: Options and Challenges

Description: The increase in domestic supplies of natural gas has raised new interest in expanding its use in the transportation sector. This report considers issues related to wider use of natural gas as a fuel in passenger cars and commercial vehicles.
Date: November 19, 2014
Creator: Canis, Bill; Pirog, Robert & Yacobucci, Brent D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

1999 annual progress report -- Energy conservation team

Description: This report highlights progress achieved during FY 1999 under the Light-duty Fuels Utilization R and D Program. The program is comprised of two elements: the Advanced Petroleum-Based APB Fuels Program which focused on developing and testing advanced fuels for use with compression-ignition direct-injection (CIDI) engines and fuel cells and the Alternative Fuels Program which focused on Natural gas and natural gas derived fuels. The report contains 17 summaries of industry and National Laboratory… more
Date: October 19, 1999
Creator: Chalk, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

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

Description: New York City Department of Sanitation has operated natural gas fueled refuse haulers in a pilot study: a major goal of this study was to compare the emissions from these natural gas vehicles with their diesel counterparts. The vehicles were tandem axle trucks with GVW (gross vehicle weight) rating of 69,897 pounds. The primary use of these was for street collection and transporting the refuse to a landfill. West Virginia University Transportable Heavy Duty Emissions Testing Laboratories have b… more
Date: October 19, 1998
Creator: Clark, Nigel N.; Rapp, Byron l.; Gautam, Mridul; Wang, Wenguang & Lyons, Donald W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Particulate Measurements and Emissions Characterization of Alternative Fuel Vehicle Exhaust

Description: The objective of this project was to measure and characterize particulate emissions from light-duty alternative fuel vehicles (AFVs) and equivalent gasoline-fueled vehicles. The project included emission testing of a fleet of 129 gasoline-fueled vehicles and 19 diesel vehicles. Particulate measurements were obtained over Federal Test Procedure and US06 cycles. Chemical characterization of the exhaust particulate was also performed. Overall, the particulate emissions from modern technology compr… more
Date: November 19, 1998
Creator: Durbin, T. D.; Truex, T. J. & Norbeck, J. M. (Center for Environmental Research and Technology College of Engineering, University of California - Riverside, California)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dodge B2500 dedicated CNG van

Description: The US Department of Energy (DOE) is promoting the use of alternative fuels and alternative fuel vehicles (AFVs). To support this activity, DOE has directed the National Renewable Energy Laboratory (NREL) to conduct projects to evaluate the performance and acceptability of light-duty AFVs. The authors tested a 1999 B2500 dedicated CNG Ram Wagon with a 5.2L V8 engine. The vehicle was run through a series of tests explained briefly in this fact sheet.
Date: April 19, 2000
Creator: Eudy, L.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Direct FuelCell/Turbine Power Plant Annual Technical Progress Report: 2004

Description: This report includes the progress in development of Direct Fuel Cell/Turbine. (DFC/T.) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas… more
Date: November 19, 2004
Creator: Ghezel-Ayagh, Hossein
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Hydraulic Fracturing Technology for Unconventional Tight Gas Reservoirs

Description: The objectives of this project are to develop and test new techniques for creating extensive, conductive hydraulic fractures in unconventional tight gas reservoirs by statistically assessing the productivity achieved in hundreds of field treatments with a variety of current fracturing practices ranging from 'water fracs' to conventional gel fracture treatments; by laboratory measurements of the conductivity created with high rate proppant fracturing using an entirely new conductivity test - the… more
Date: June 19, 2007
Creator: Holditch, Stephen; Hill, A. Daniel & Zhu, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DETECTION OF UNAUTHORIZED CONSTRUCTION EQUIPMENT IN PIPELINE RIGHT-OF-WAYS

Description: Natural gas transmission companies mark the right-of-way areas where pipelines are buried with warning signs to prevent accidental third-party damage. Nevertheless, pipelines are sometimes damaged by third-party construction equipment. A single incident can be devastating, causing death and millions of dollars of property loss. This damage would be prevented if potentially hazardous construction equipment could be detected, identified, and an alert given before the pipeline was damaged. The Gas… more
Date: July 19, 2002
Creator: Huebler, James E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heavy Vehicle Propulsion Materials Program: Progress and Highlights

Description: The Heavy Vehicle Propulsion Materials Program was begun in 1997 to support the enabling materials needs of the DOE Office of Heavy Vehicle Technologies (OHVT). The technical agenda for the program grew out of the technology roadmap for the OHVT and includes efforts in materials for: fuel systems, exhaust aftertreatment, valve train, air handling, structural components, electrochemical propulsion, natural gas storage, and thermal management. A five-year program plan was written in early 2000, f… more
Date: June 19, 2000
Creator: Johnson, D. Ray & Diamond, Sidney
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Comanche Peak]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1985
Duration: 3 minutes 23 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Gas Suit]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 19, 1978, 10:00 p.m.
Duration: 2 minutes 17 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Gas suit]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 19, 1978, 6:00 p.m.
Duration: 2 minutes 09 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Natural gas evacuation]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1985, 5:00 p.m.
Duration: 1 minute 01 second
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Clean Cities Award Winning Coalition: Atlanta

Description: The Atlanta Clean City was the first to join the program in 1993, and has been successfully spreading the word about the benefits of alternative fuels ever since. They have already surpassed their year 2000 goal of operating more than 2,600 alternative fuel vehicles (AFVs). More than 30 stakeholders continue to help spur the Atlanta AFV market development by implementing innovative alternative fuel projects. Stakeholders actively support legislation that encourages the use of AFVs and sponsor w… more
Date: May 19, 1999
Creator: Kaiser, ICF
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Clean Cities Award Winning Coalition: Chicago

Description: The Chicago area coalition marks its five-year anniversary in 1999 as a member of the Clean Cities Program. Their progress in the last five years has been remarkable as they advance the alternative fuel and vehicle markets, increase coalition membership, help support new alternative fuel vehicle (AFV) legislation, and educate fleet managers. The coalition boasts more than 90 stakeholders, including industry, government, environmental and academic organizations, and membership continues to grow.… more
Date: May 19, 1999
Creator: Kaiser, ICF
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Clean Cities Award Winning Coalition: Denver

Description: The cities of Denver and Boulder comprise the Denver Clean Cities Coalition. They are committed to cleaner fuels, greener fleets, and bluer skies. More than 25 active stakeholders, including local government agencies, utilities, and private organizations, work together to advance alternative fuels and alternative fuel vehicles in the region. The city of Denver boasts several neighborhood electric vehicles for employees' use around town. The coalition has also sponsored alternative fuel workshop… more
Date: May 19, 1999
Creator: Kaiser, ICF
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Clean Cities Award Winning Coalition: Los Angeles

Description: As the second largest city in the United States, Los Angeles has more than 9 million motor vehicles on the road, accounting for up to 60% of the region's air pollution. Clean Cities Los Angeles has pioneered efforts in implementing innovation pollution reduction strategies, using alternative fuels and alternative fuel vehicles (AFVs). More than 475 compressed natural gas, liquefied natural gas, and electric vehicles (EVs) have been incorporated into city fleets. They've also launched Quick Char… more
Date: May 19, 1999
Creator: Kaiser, ICF
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Clean Cities Award Winning Coalition: San Diego

Description: Stakeholders in the San Diego coalition have already helped remove about 125 tons of nitrogen oxides and 867 tons of carbon dioxide every year since their inception in 1996. They are proud of their numerous accomplishments, including the San Diego Gas and Electric's installation of a solar chargeport, which can charge up to six electric vehicles simultaneously and at no cost. San Diego Regional Clean Cities Coalition will also soon be home to the first alternative fuel vehicle (AFV) showroom in… more
Date: May 19, 1999
Creator: Kaiser, ICF
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Displacing Coal with Generation from Existing Natural Gas-Fired Power Plants

Description: This report provides an overview of the issues involved in displacing coal-fired generation with electricity from existing and underutilized natural gas plants in order to cut greenhouse gas emissions. Reducing carbon dioxide emissions from coal plants is a focus of many proposals for cutting greenhouse gas emissions.
Date: January 19, 2010
Creator: Kaplan, Stan M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen