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HC quench layer formation in combustion processes. Technical progress report, September-December 1979

Description: The project is aimed at understanding wall quenching and other processes responsible for surface generated hydrocarbons in combustion under engine-like conditions. The study concerns the effects of turbulence on the evolution of hydrocarbons. At the conclusion of the program, significant new experimental information will have been generated and an analytical model of the fluid mechanics and some aspects of the chemistry of quenching will be formulated. The work is divided into three tasks: (1) … more
Date: February 1, 1980
Creator: Lavoie, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigative study of engine limiting

Description: An experimental study was conducted to determine the effect of cylinder cut-out or ''engine limiting'' on fuel consumption and exhaust emissions for a current technology V-type 8-cylinder engine. Increases in energy conversion efficiency while operating with only 4 cylinders ranged from 10 to 40% compared to operation with 8 cylinders at the same power outputs. The speeds and loads chosen were representative of those required to operate a 4,500-lb vehicle at speeds up to 60 mph. Hydrocarbon emi… more
Date: February 1, 1978
Creator: Bechtold, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rankine bottoming cycle safety analysis. Final report

Description: Vector Engineering Inc. conducted a safety and hazards analysis of three Rankine Bottoming Cycle Systems in public utility applications: a Thermo Electron system using Fluorinal-85 (a mixture of 85 mole % trifluoroethanol and 15 mole % water) as the working fluid; a Sundstrand system using toluene as the working fluid; and a Mechanical Technology system using steam and Freon-II as the working fluids. The properties of the working fluids considered are flammability, toxicity, and degradation, an… more
Date: February 1, 1980
Creator: Lewandowski, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CAM/LIFTER forces and friction

Description: This report details the procedures used to measure the cam/lifter forces and friction. The present effort employed a Cummins LTA-10, and focuses on measurements and dynamic modeling of the injector train. The program was sponsored by the US Department of Energy in support of advanced diesel engine technology. The injector train was instrumented to record the instantaneous roller speed, roller pin friction torque, pushrod force, injector link force and cam speed. These measurements, together wit… more
Date: February 1, 1992
Creator: Gabbey, D.J.; Lee, J. & Patterson, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vehicle technologies heavy vehicle program : FY 2008 benefits analysis, methodology and results --- final report.

Description: This report describes the approach to estimating the benefits and analysis results for the Heavy Vehicle Technologies activities of the Vehicle Technologies (VT) Program of EERE. The scope of the effort includes: (1) Characterizing baseline and advanced technology vehicles for Class 3-6 and Class 7 and 8 trucks, (2) Identifying technology goals associated with the DOE EERE programs, (3) Estimating the market potential of technologies that improve fuel efficiency and/or use alternative fuels, an… more
Date: February 29, 2008
Creator: Singh, M.; Systems, Energy & Engineering, TA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Innovative solar thermochemical water splitting.

Description: Sandia National Laboratories (SNL) is evaluating the potential of an innovative approach for splitting water into hydrogen and oxygen using two-step thermochemical cycles. Thermochemical cycles are heat engines that utilize high-temperature heat to produce chemical work. Like their mechanical work-producing counterparts, their efficiency depends on operating temperature and on the irreversibility of their internal processes. With this in mind, we have invented innovative design concepts for two… more
Date: February 1, 2008
Creator: Hogan, Roy E. Jr.; Siegel, Nathan P.; Evans, Lindsey R.; Moss, Timothy A.; Stuecker, John Nicholas (Robocasting Enterprises, Albuquerque, NM); Diver, Richard B., Jr. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Thermal Conductivity Carbon Foam used for the Thermal Management of Engine Oil

Description: The need for maintaining a lower specific engine oil temperature is essential in enhancing the longevity of the oil and of the engine and its components. By decreasing the engine oil temperature the oil is able to perform its job more efficiently. It is proposed to use the carbon foam, with its exceptional thermal management capabilities, to aid in reducing and stabilizing the engine oil temperature during steady state operation. Also, it is possible to use the carbon foam to heat the engine oi… more
Date: February 2, 2006
Creator: Ott, R. D.; McMillan, A. D. & Choudhury, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Power Plant Development and Analyses Methodologies

Description: Under the sponsorship of the U.S. Department of Energy/National Energy Technology Laboratory, a multi-disciplinary team led by the Advanced Power and Energy Program of the University of California at Irvine is defining the system engineering issues associated with the integration of key components and subsystems into advanced power plant systems with goals of achieving high efficiency and minimized environmental impact while using fossil fuels. These power plant concepts include ''Zero Emission… more
Date: February 6, 2006
Creator: Samuelsen, G.S. & Rao, A.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on Toyota Prius Motor Thermal Management

Description: In the current hybrid vehicle market, the Toyota Prius drive system is considered the leader in electrical, mechanical, and manufacturing innovations. It is a significant accomplishment that Toyota is able to manufacture and sell the vehicle for a profit. The Toyota Prius traction motor design approach for reducing manufacturing costs and the motor s torque capability have been studied and tested. The findings were presented in two previous Oak Ridge National Laboratory (ORNL) reports. The conc… more
Date: February 11, 2005
Creator: Hsu, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Railroad and Locomotive Technology Roadmap.

Description: Railroads are important to the U.S. economy. They transport freight efficiently, requiring less energy and emitting fewer pollutants than other modes of surface transportation. While the railroad industry has steadily improved its fuel efficiency--by 16% over the last decade--more can, and needs to, be done. The ability of locomotive manufacturers to conduct research into fuel efficiency and emissions reduction is limited by the small number of locomotives manufactured annually. Each year for t… more
Date: February 24, 2003
Creator: Stodolsky, F.; Gaines, L. & Systems, Energy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Intake Air Filter Condition on Vehicle Fuel Economy

Description: The U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy and the U.S. Environmental Protection Agency (EPA) jointly maintain a fuel economy website (www.fueleconomy.gov), which helps fulfill their responsibility under the Energy Policy Act of 1992 to provide accurate fuel economy information [in miles per gallon (mpg)] to consumers. The site provides information on EPA fuel economy ratings for passenger cars and light trucks from 1985 to the present and other relevan… more
Date: February 1, 2009
Creator: Norman, Kevin M; Huff, Shean P & West, Brian H
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Freedom car and vehicle technologies heavy vehicle program : FY 2007 benefits analysis, methodology and results -- final report.

Description: This report describes the approach to estimating the benefits and analysis results for the Heavy Vehicle Technologies activities of the FreedomCar and Vehicle Technologies (FCVT) Program of EERE. The scope of the effort includes: (1) Characterizing baseline and advanced technology vehicles for Class 3-6 and Class 7 and 8 trucks, (2) Identifying technology goals associated with the DOE EERE programs, (3) Estimating the market potential of technologies that improve fuel efficiency and/or use alte… more
Date: February 29, 2008
Creator: SIngh, M.; Systems, Energy & Engineering, TA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non‑Road Engines, Report 1 - Updated

Description: In summer 2007, the U.S. Department of Energy (DOE) initiated a test program to evaluate the potential impacts of intermediate ethanol blends on legacy vehicles and other engines. The purpose of the test program is to assess the viability of using intermediate blends as a contributor to meeting national goals in the use of renewable fuels. Through a wide range of experimental activities, DOE is evaluating the effects of E15 and E20--gasoline blended with 15 and 20% ethanol--on tailpipe and evap… more
Date: February 1, 2009
Creator: Knoll, Keith; West, Brian H; Clark, Wendy; Graves, Ronald L; Orban, John; Przesmitzki, Steve et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Towards a Real-time Transient Classification Engine

Description: Temporal sampling does more than add another axis to the vector of observables. Instead, under the recognition that how objects change (and move) in time speaks directly to the physics underlying astronomical phenomena, next-generation wide-field synoptic surveys are poised to revolutionize our understanding of just about anything that goes bump in the night (which is just about everything at some level). Still, even the most ambitious surveys will require targeted spectroscopic follow-up to fi… more
Date: February 22, 2008
Creator: Nugent, Peter E.; Bloom, Josh; Starr, Dan; Butler, Nat; Nugent, Peter; Rischard, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of Cost-Effective Low-Permeability Ceramic and Refractory Components for Aluminum Melting and Casting

Description: A recent review by the U.S. Advanced Ceramics Association, the Aluminum Association, and the U.S. Department of Energy's Office of Industrial Technologies (DOE/OIT) described the status of advanced ceramics for aluminum processing, including monolithics, composites, and coatings. The report observed that monolithic ceramics (particularly oxides) have attractive properties such as resistance to heat, corrosion, thermal shock, abrasion, and erosion [1]. However, even after the developments of the… more
Date: February 1, 2006
Creator: Kadolkar, Puja & Ott, Ronald D
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wear mechanism and wear prevention in coal-fueled diesel engines

Description: The overall objective of this program is to develop the engine and lubricant system design approach that has the highest probability for commercial acceptance. Several specific objectives can also be identified. These objectives include: definition of the dominant wear mechanisms prevailing in coal-fueled diesel engines; definition of the specific effect of each coal-related lube oil contaminant; determination of the potential of traditional engine lubrication design approaches to either solve … more
Date: February 19, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Power-grade butanol recovery and utilization

Description: As an alternative to the traditional recovery systems, it was proposed in a previous publication that the n-butanol/acetone/ethanol fermentation products could be recovered as a power grade fuel blend and used directly as a fuel. This would affect a savings in process energy requirements because each chemical component would not have to be processed individually to technical grade purity. Further, some residual water could be tolerated in the fuel blend. To develop such a power grade fuel recov… more
Date: February 12, 1982
Creator: Noon, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar-powered irrigation systems. Technical progress report, July 1977--January 1978

Description: Dispersed solar thermal power systems applied to farm irrigation energy needs are analyzed. The 17 western states, containing 84% of nationwide irrigated croplands and consuming 93% of nationwide irrigation energy, have been selected to determine were solar irrigation systems can compete most favorably with conventional energy sources. Financial analysis of farms, according to size and ownership, was accomplished to permit realistic comparative analyses of system lifetime costs. Market potentia… more
Date: February 28, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The cost of silicon nitride powder: What must it be to compete

Description: The ability of advanced ceramic components to compete with similar metallic parts will depend in part on current and future efforts to reduce the cost of ceramic parts. This paper examines the potential reductions in part cost that could result from the development of less expensive advanced ceramic powders. The analysis focuses specifically on two silicon nitride engine components -- roller followers and turbocharger rotors. The results of the process-cost models developed for this work sugges… more
Date: February 1, 1992
Creator: Das, S. & Curlee, T.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of Several Design Variables on Turbine-Wheel Weight

Description: Report presenting an analysis showing the effect of several design variables on turbine-wheel flight. Equations are developed for the calculations of weights of the disk, the rim, and the blades, and use the following variables: the blading aspect ratio and solidity, the ratio of the centrifugal stress at the blade roots to that in the disk, and the ratio of wheel diameter at the blade root to wheel diameter at the blade tip.
Date: February 1949
Creator: LaValle, Vincent L. & Huppert, Merle C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In-line aircraft-engine bearing loads 3: main-bearing loads

Description: Report presenting the application of dimensional analysis to the computation of the main bearing of a V-type in-line aircraft engine. Two crankshafts have been considered, one designed for higher operating speed than the other. Two types of engines are considered: one for regular V-type engines and one for production V-type engines.
Date: February 1947
Creator: Shaw, Milton C. & Macks, E. Fred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Economic assessment of coal-burning locomotives: Topical report

Description: The General Electric Company embarked upon a study to evaluate various alternatives for the design and manufacture a coal fired locomotive considering various prime movers, but retaining the electric drive transmission. The initial study was supported by the Burlington-Northern and Norfolk-Southern railroads, and included the following alternatives: coal fired diesel locomotive; direct fired gas turbine locomotives; direct fired gas turbine locomotive with steam injection; raw coal gasifier gas… more
Date: February 1, 1986
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fleet manager's guide to testing vehicles for valid results

Description: The managers of automotive fleets are vitally interested in saving money. Fleet procurement and operations costs are increasing rapidly. Fuel cost increases have been especially extreme. Conservation measures have included the purchase of more fuel-efficient vehicles, consolidation or reduction of unnecessary or redundant travel, upgraded and/or more frequent vehicle inspection, maintenance, repair, and the installation of fuel-saving components (or removal of fuel-consuming components). Virtua… more
Date: February 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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