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Study on reduction of accessory horsepower requirements. Eighth quarterly progress report

Description: This is the eighth quarterly technical progress report for a program in which the objective is to evolve and define an accessory drive system that will minimize system power consumption of driven accessories on an internal combustion engine in a passenger automobile. The initial program phases established concept feasibility, determined potential fuel savings, and selected a drive system design for concept mechanization. The current Phase IV carries the program through prototype fabrication and… more
Date: July 31, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental Barrier Coatings for the Energy Efficient Heat Engines Program

Description: This program aimed to develop a fundamental understanding of the microstructural, mechanical, and chemical properties of Ta{sub 2}O{sub 5}-based coatings for Si{sub 3}N{sub 4} (AS800) substrates and optimize such coatings for environmental barriers. The program consisted of three tasks: processing of Ta{sub 2}O{sub 5} coatings, phase and microstructural development, and life-limiting phenomena. Northwestern University formed a cross-functional team with Lehigh University, Honeywell Inc., and Oa… more
Date: October 31, 2004
Creator: Faber, Katherine
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement and Modeling of Advanced Coal Conversion Processes. 23rd Quarterly Report, April 1, 1992--June 30, 1992

Description: The overall objective of this program is the development of predictive capability for the design, scale up, simulation, control and feedstock evaluation in advanced coal conversion devices. This technology is important to reduce the technical and economic risks inherent in utilizing coal, a feedstock whose variable and often unexpected behavior presents a significant challenge. This program will merge significant advances made at Advanced Fuel Research, Inc. (AFR) in measuring and quantitativel… more
Date: December 31, 1992
Creator: Solomon, P. R.; Serio, M. A.; Hamblen, D. G.; Smoot, L. D. & Brewster, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement and Modeling of Advanced Coal Conversion Processes. Twenty-First Quarterly Report, October 1, 1991--December 31, 1991

Description: The objective of this study are to establish the mechanisms and rates of basic steps in coal conversion processes, to integrate and incorporate this information into comprehensive computer models for coal conversion processes, to evaluate these models and to apply them to gasification, mild gasification and combustion in heat engines.
Date: December 31, 1991
Creator: Solomon, P. R.; Serio, M. A.; Hamblen, D. G.; Smoot, L. D. & Brewster, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement and Modeling of Advanced Coal Conversion Processes. Annual Report, October 1990--September 1991

Description: The overall objective of this program is the development of predictive capability for the design, scale up, simulation, control and feedstock evaluation in advanced coal conversion devices. This program will merge significant advances made in measuring and quantitatively describing the mechanisms in coal conversion behavior. Comprehensive computer codes for mechanistic modeling of entrained-bed gasification. Additional capabilities in predicting pollutant formation will be implemented and the t… more
Date: December 31, 1991
Creator: Solomon, P. R.; Serio, M. A.; Hamblen, D. G.; Smoot, L. D. & Brewster, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of the rate-controlling mechanism(s) for high temperature creep and the relationship between creep and melting by using high pressure as a variable. Final report

Description: Silicon nitride (Si3N4) offers the advantages of high strength, high thermal shock resistance and a low coefficient of thermal expansion, which are attractive for high thermal efficiency heat engine parts such as in the automotive industry. A consolidation process is required in which the equiaxed {alpha} phase of the starting powders are retained along with a submicrongrain size; after forming, the strong {beta} phase is then formed by heat treatment. Conventional sintering and the mechanisms … more
Date: December 31, 1994
Creator: Mukherjee, A. K. & Green, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of microwaves on the performance of internal-combustion engines. Final technical report, September 30, 1979-January 31, 1981

Description: Progress is reported in a research program whose goals are to expand a date base on the electrical properties of hydrocarbon-air flames, to use the amplified data base to study the interaction of microwaves with the flame both in a combustion bomb and an appropriately designed single-cylinder test engine, and to apply high power microwave energy to the bomb and test engine in order to stimulate the combustion processes. Besides the work on the microwave/flame plasma properties, work was perform… more
Date: January 31, 1981
Creator: Ward, M. A.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar-Electric Dish Stirling System Development

Description: Electrical power generated with the heat from the sun, called solar thermal power, is produced with three types of concentrating solar systems - trough or line-focus systems; power towers in which a centrally-located thermal receiver is illuminated with a large field of sun-tracking heliostats; and dish/engine systems. A special case of the third type of system, a dish/Stirling system, is the subject of this paper. A dish/Stirling system comprises a parabolic dish concentrator, a thermal receiv… more
Date: December 31, 1997
Creator: Mancini, T.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermoacoustic engines and refrigerators

Description: This report is a transcript of a practice lecture given in preparation for a review lecture on the operation of thermoacoustic engines and refrigerators. The author begins by a brief review of the thermodynamic principles underlying the operation of thermoacoustic engines and refrigerators. Remember from thermodynamics class that there are two kinds of heat engines, the heat engine or the prime mover which produces work from heat, and the refrigerator or heat pump that uses work to pump heat. T… more
Date: December 31, 1996
Creator: Swift, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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