Alternative Fuels in Public Transit: A Match Made on the Road (open access)

Alternative Fuels in Public Transit: A Match Made on the Road

Brochure addressing alternative fuel modes of transportation for public transit, challenges, fuels, infrastructure, cast studies, guidance, and resources.
Date: March 1, 2002
Creator: unknown
System: The UNT Digital Library
State-of-the-Art Building Concepts Lower Energy Bills: Pulte Homes -- Las Vegas, Nevada (open access)

State-of-the-Art Building Concepts Lower Energy Bills: Pulte Homes -- Las Vegas, Nevada

Houses built by Pulte Homes as part of the U.S. Department of Energy's Building America program in Las Vegas, Nevada, save money for the home owners by reducing electric air-conditioning costs and gas heating costs with little or no additional investment.
Date: March 1, 2002
Creator: unknown
System: The UNT Digital Library
Improve Your Boiler's Combustion Efficiency: Office of Industrial Technologies (OIT) Steam Energy Tips No.4 (open access)

Improve Your Boiler's Combustion Efficiency: Office of Industrial Technologies (OIT) Steam Energy Tips No.4

Operating your boiler with an optimum amount of excess air will minimize heat loss up the stack and improve combustion efficiency. Combustion efficiency is a measure of how effectively the heat content of a fuel is transferred into usable heat. The stack temperature and flue gas oxygen (or carbon dioxide) concentrations are primary indicators of combustion efficiency. Given complete mixing, a precise or stoichiometric amount of air is required to completely react with a given quantity of fuel. In practice, combustion conditions are never ideal, and additional or ''excess'' air must be supplied to completely burn the fuel. The correct amount of excess air is determined from analyzing flue gas oxygen or carbon dioxide concentrations. Inadequate excess air results in unburned combustibles (fuel, soot, smoke, and carbon monoxide) while too much results in heat lost due to the increased flue gas flow--thus lowering the overall boiler fuel-to-steam efficiency. The table relates stack readings to boiler performance. On well-designed natural gas-fired systems, an excess air level of 10% is attainable. An often stated rule of thumb is that boiler efficiency can be increased by 1% for each 15% reduction in excess air or 40 F reduction in stack gas temperature.
Date: March 1, 2002
Creator: unknown
System: The UNT Digital Library
Fred Hutchinson Cancer Research Center, Seattle, Washington: Laboratories for the 21st Century Case Studies (Revision) (open access)

Fred Hutchinson Cancer Research Center, Seattle, Washington: Laboratories for the 21st Century Case Studies (Revision)

This case study was prepared by participants in the Laboratories for the 21st Century program, a joint endeavor of the U.S. Environmental Protection Agency and the U.S. Department of Energy's Federal Energy Management Program. The goal of this program is to foster greater energy efficiency in new laboratory buildings for both the public and the private sectors. Retrofits of existing laboratories are also encouraged. The energy-efficient features of the laboratories in the Fred Hutchinson Cancer Research Center complex in Seattle, Washington, include extensive use of efficient lighting, variable-air-volume controls, variable-speed drives, motion sensors, and high-efficiency chillers and motors. With about 532,000 gross square feet, the complex is estimated to use 33% less electrical energy than most traditional research facilities consume because of its energy-efficient design and features.
Date: March 1, 2002
Creator: unknown
System: The UNT Digital Library
Millwater Pumping System Optimization Improves Efficiency and Saves Energy at an Automotive Glass Plant (open access)

Millwater Pumping System Optimization Improves Efficiency and Saves Energy at an Automotive Glass Plant

In 2001, the Visteon automotive glass plant in Nashville, Tennessee renovated its millwater pumping system. This improvement saved the plant $280,000 annually in energy and operating costs, reduced annual energy consumption by 3.2 million kilowatt-hours, reduced water consumption, improved system performance, and reduced use of water treatment chemicals.
Date: March 1, 2003
Creator: United States. Department of Energy. Office of Energy Efficiency and Renewable Energy. Office of Industrial Technologies.
System: The UNT Digital Library
Techni-Cast: Foundry Saves Energy with Compressed Air System Retrofit (open access)

Techni-Cast: Foundry Saves Energy with Compressed Air System Retrofit

In 2002, Techni-Cast improved its compressed air system at its foundry in Southgate, California. The project allowed the foundry to reduce its compressor capacity by 50%, which greatly reduced the foundry's energy and maintenance costs. The annual energy and maintenance savings from the project implementation are 242,000 kWh and $24,200, and the projects cost was $38,000. Because the plant received a $10,000 incentive payment from the California Public Utilities Commission, the total project cost was reduced to $28,000, yielding a 14-month simple payback.
Date: March 1, 2001
Creator: unknown
System: The UNT Digital Library
Studies in Low-Energy Nuclear Science (open access)

Studies in Low-Energy Nuclear Science

This report presents a summary of research projects in the area of low energy nuclear reactions and structure, carried out between 1 January 2003 and 31 December 2005 and supported by U.S. DOE grant number DE-FG03-03NA00074. Cross sections measured with high resolution have been subjected to an Ericson theory analysis to infer information about the nuclear level density. Other measurements were made of the spectral shape of particles produced in evaporation processes; these also yield level density information. A major project was the development of a new Hauser-Feshbach code for analyzing such spectra. Other measurements produced information on the spectra of gamma rays emitted in reactions on heavy nuclei and gave a means of refining our understanding of gamma-ray strength functions. Finally,reactions on light nuclei were studied and subjected to an R-matrix analysis. Cross sections fora network of nuclear reactions proceedingthrough a given compound nucleus shouldgreatly constrain the family of allowed parameters. Modifications to the formalism andcomputer code are also discussed.
Date: March 30, 2006
Creator: Brune, Carl R. & Grimes, Steven M.
System: The UNT Digital Library
HBTprogs Version 1.0 (open access)

HBTprogs Version 1.0

This is the manual for a collection of programs that can be used to invert angled-averaged (i.e. one dimensional) two-particle correlation functions. This package consists of several programs that generate kernel matrices (basically the relative wavefunction of the pair, squared), programs that generate test correlation functions from test sources of various types and the program that actually inverts the data using the kernel matrix.
Date: March 15, 2002
Creator: Brown, D. A. & Danielewicz, P.
System: The UNT Digital Library
The Ohio River Valley CO2 Storage Project AEP Mountaineer Plant, West Virginia Numerical Simulation and Risk Assessment Report (open access)

The Ohio River Valley CO2 Storage Project AEP Mountaineer Plant, West Virginia Numerical Simulation and Risk Assessment Report

A series of numerical simulations of carbon dioxide (CO{sub 2}) injection were conducted as part of a program to assess the potential for geologic sequestration in deep geologic reservoirs (the Rose Run and Copper Ridge formations), at the American Electric Power (AEP) Mountaineer Power Plant outside of New Haven, West Virginia. The simulations were executed using the H{sub 2}O-CO{sub 2}-NaCl operational mode of the Subsurface Transport Over Multiple Phases (STOMP) simulator (White and Oostrom, 2006). The objective of the Rose Run formation modeling was to predict CO{sub 2} injection rates using data from the core analysis conducted on the samples. A systematic screening procedure was applied to the Ohio River Valley CO{sub 2} storage site utilizing the Features, Elements, and Processes (FEP) database for geological storage of CO{sub 2} (Savage et al., 2004). The objective of the screening was to identify potential risk categories for the long-term geological storage of CO{sub 2} at the Mountaineer Power Plant in New Haven, West Virginia. Over 130 FEPs in seven main classes were assessed for the project based on site characterization information gathered in a geological background study, testing in a deep well drilled on the site, and general site conditions. In evaluating …
Date: March 31, 2008
Creator: Gupta, Neeraj
System: The UNT Digital Library