244 Matching Results

Search Results

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

Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix A: mission analysis and performance specification studies. Volume I

Description: Studies are described which were performed for the Near Term Hybrid Vehicle program to determine passenger car usage patterns and to correlate these trip mission characteristics with vehicle design and performance specifications. (LCL)
Date: April 20, 1979
Creator: Traversi, M. & Barbarek, L.A.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase I of the Near-Term Hybrid Vehicle Program. Final report

Description: Heat engine/electric hybrid vehicles offer the potential of greatly reduced petroleum consumption, compared to conventional vehicles, without the disadvantages of limited performance and operating range associated with pure electric vehicles. This report documents a hybrid vehicle design approach which is aimed at the development of the technology required to achieve this potential, in such a way that it is transferable to the auto industry in the near term. The development of this design appro… more
Date: September 10, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stirling total energy systems study. Final report, May 15, 1976--June 13, 1977

Description: The application of Stirling cycle prime movers to total energy power generation systems was investigated. Electrical, heating, and cooling demand profiles for a typical residential complex, hospital, and office building were studied, and alternative Stirling total energy systems were conceptualized for each site. These were analyzed in detail and contrasted with purchased-power systems for these sites to determine fuel-energy savings and investment attractiveness. The residential complex and ho… more
Date: August 1, 1977
Creator: Lehrfeld, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

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
open access

Improved ceramic heat exchanger material

Description: Various ceramic materials in the form of small, monolithic bars were screened as candidate materials in heat exchanger structures for automotive gas turbine engines. The material finally selected consists of 60 w/o* petalite (LAS) and 40 w/o of a recrystallizable glass which converts during thermal processing to cordierite (MAS). This new material, GE-3200, was fabricated by Coors Porcelain Company into a circular honeycomb structure 53.3 cm diameter and 10.2 cm thick (21'' x 4'') and having 69… more
Date: November 1, 1977
Creator: Rauch, H. W., Sr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NO/sub 2/ levels in diesel exhaust

Description: The safe operation of diesel-powered equipment in underground mines is predicated on there being sufficient ventilation to dilute the exhaust such that none of the toxicants in the dilute mixture exceed allowable levels. In order to determine the ventilation requirement for an engine, it is necessary to measure levels of the various toxicants in the exhaust. Measurements in the past typically either have excluded nitrogen dioxide or have not provided information on nitrogen dioxide specifically… more
Date: January 1, 1978
Creator: Marshall, W.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix C: preliminary design data package. Volume I

Description: The assumptions made, analysis methods used, and preliminary results of research to determine the design specifications for a hybrid electric-powered and internal combustion engine-powered vehicle that would optimize the fuel economy of passenger automobiles are described. Information is included on body and component design, selection of spark-ignition engine and Ni-Zn batteries, life-cycle costs and life-cycle fuel consumption. (LCL)
Date: July 31, 1979
Creator: Piccolo, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study on reduction of accessory-horsepower requirements. Third quarterly progress report

Description: The objective of this study program is to minimize automotive accessory horsepower consumption, and thereby maximize overall vehicle fuel economy, by utilizing continuously variable speed drives or auxiliary power units (APUs) in a standard passenger automobile. As an aid to definitizing accessory performance, load requirements and fuel economy, a baseline vehicle has beeen established. This vehicle is a conventional intermediate size 5- or 6-passenger automobile with a 4.1 to 5.7 liter (250 to… more
Date: April 23, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Durability testing at one atmosphere of advanced catalysts and catalyst supports for automotive gas turbine engine combustors. Part 1

Description: Studies were conducted to experimentally demonstrate the durability catalysts and catalyst supports in a combustion environment. A test of 1000 hours duration was completed with two catalysts, using No. 2 diesel fuel and operating at catalytically supported thermal combustion conditions. This atmospheric pressure durability test was conducted, using an air preheat temperature of about 640/sup 0/K and a reference velocity of about 14 meters/second. The adiabatic flame temperature of the fuel/air… more
Date: June 1, 1977
Creator: Heck, R.M.; Chang, M.; Hess, H. & Carrubba, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of hydrogen-powered versus battery-powered automobiles

Description: A study conducted to compare the technological status and the resultant potential vehicle characteristics for hydrogen- and battery-powered automobiles that could be produced from 1985 to 2000 is documented in 3 volumes. The primary objectives of the study were: the assessments of applicable energy storage and propulsion technology for the two basic vehicle types (applied to four-passenger cars); a rigorous comparison of vehicle weight, size, and usefulness versus design range; and an investiga… more
Date: May 1, 1979
Creator: Donnelly, J.J. Jr.; Greayer, W.C.; Nichols, R.J. & Escher, W.J.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix B: trade-off studies. Volume I

Description: Trade-off studies of Near Term Hybrid Vehicle (NTHV) design elements were performed to identify the most promising design concept in terms of achievable petroleum savings. The activities in these studies are described. The results are presented as preliminary NTHV body design, expected fuel consumption as a function of vehicle speed, engine requirements, battery requirements, and vehicle reliability and cost. (LCL)
Date: June 11, 1979
Creator: Traversi, M. & Piccolo, R.
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

Energy study of railroad freight transportation. Volume 4. Efficiency improvements and industry future

Description: Railroad equipment and operating practices were largely developed in an era during which the price of fuel was a relatively minor part of the cost of railroad operations; however, fuel has now become a scarce and expensive resource. Although many opportunities exist for installing new equipment and operating practices that will result in fuel conservation, cost and market factors can promote or retard the rate at which changes are adopted, and only limited technology may be available for use in… more
Date: August 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ceramic coatings on diesel engine components. Period covered: January 1979-August 1979

Description: Diesel engines with imporved thermal efficiency and fuel economy or flexibility will be required to meet automotive energy conservation goals. These goals can be met by minimizing engine heat loss to the coolant, i.e., by the use of a thermal insulating barrier on the interior surfaces of the combustion space. The development and testing of ceramic coatings for diesel engine components are discussed. These coatings include oxides of Al, Cr, Zr, Mg, Si, Ti, and Ca, and Mo and Ch carbides. Data o… more
Date: October 1, 1979
Creator: Kvernes, I & Lillerud, K P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization and Research Investigation of Methanol and Methyl Fuels. Final Progress Report

Description: Work on several aspects of using pure methanol as an alternate fuel are reported. A stock (OEM) Pinto engine mounted on a dynamometer was used to compare methanol with Indolene in terms of power, efficiency, and emissions for a variety of speeds and loads. Although the engine was designed for use with gasoline, it was found that methanol was generally superior in power, thermal efficiency and reduced emissions with the exception of aldehydes. Three different fuel metering systems were tested fo… more
Date: January 1, 1977
Creator: Pefley, R. K.; Browning, L. H.; Hornberger, M. L.; Likos, W. E.; McCormack, M. C. & Pullman, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Policy Analysis Screening System (PASS) demonstration: sample queries and terminal instructions

Description: This document contains the input and output for the Policy Analysis Screening System (PASS) demonstration. This demonstration is stored on a portable disk at the Environmental Impacts Division. Sample queries presented here include: (1) how to use PASS; (2) estimated 1995 energy consumption from Mid-Range Energy-Forecasting System (MEFS) data base; (3) pollution projections from Strategic Environmental Assessment System (SEAS) data base; (4) diesel auto regulations; (5) diesel auto health effec… more
Date: October 16, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Single cylinder spark ignition engine study of NO and NO/sub 2/ emissions for methanol, iso-octane and nitrogen doped methanol with emphasis on measurement technique

Description: NO and NO/sub 2/ emissions from a single cylinder CFR engine were measured as a function of fuel air equivalence ratio for the spark ignited combustion of methanol, iso-octane and nitrogen doped methanol. In all cases, no NO/sub 2/ was detected for fuel-rich or stoichiometric combustion, while significant amounts of NO/sub 2/ were found for fuel-lean combustion. The exhaust system and exhaust sampling system were throughly tested for NO and NO/sub 2/ conversions, NO/sub 2/ to NO conversions and… more
Date: January 1, 1977
Creator: Brateman, J.H. & Klemm, R.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experimental Geothermal Research Facilities study (Phase 0). Final report. Volume 1

Description: Phase 0 of a project for Experimental Geothermal Research Facilities focuses on identification of a representative liquid-dominated geothermal reservoir of moderate temperature and salinity, preliminary engineering design of an appropriate energy conversion system, identification of critical technology, and planning for implementation of experimental facilities. The objectives included development of liaison with the industrial sector, to ensure responsiveness to their views in facility require… more
Date: December 31, 1974
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Near-Term Hybrid Vehicle Program, Phase I. Appendix D. Sensitivity analysis report. Final report

Description: The study methodology, the selection of input parameters and output variables, the sensitivity study results, and the conclusions of the sensitivity analysis for the Near-Term Hybrid Vehicle (NTHV) Program are presented. The objective of the Sensitivity Analysis was to determine the impact of variations in selected parameters on the utility, the economic attractiveness, and the marketability of the hybrid vehicle. The parameters to be varied include travel characteristics, energy costs, hybrid … more
Date: October 8, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen