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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

Inevitability of Engine-Out Nox Emissions from Spark-Ignition and Diesel Engines

Description: Internal combustion engines, both spark ignition and Diesel, are dominant types of vehicle power sources and also provide power for other important stationary applications. Overall, these engines are a central part of power generation in modern society. However, these engines, burning hydrocarbon fuels from natural gas to gasoline and Diesel fuel, are also responsible for a great deal of pollutant emissions to the environment, especially oxides of nitrogen (NO{sub x}) and unburned hydrocarbons … more
Date: January 11, 2000
Creator: Flynn, P F; Hunter, G L; Farrell, L A; Durrett, R P; Akinyemi, O C; Westbrook, C K et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Application of pulsed plasma NO{sub x} reduction to diesel engine exhaust

Description: We have studied the effect of pulsed plasma discharges on gas mixtures simulating diesel engine exhaust by modeling and by experiment. Our modeling results have shown that the pulsed plasma can convert NO{sub x} to N{sub 2} using the nitrogen itself as a reductant. However, this process is energetically unfavorable for the plasma regime of our measurements. In our experiments we found that addition of hydrocarbons improves substantially the energy efficiency of pulsed plasma NO{sub x} reduction… more
Date: October 11, 1993
Creator: Wallman, P. H.; Penetrante, B. M.; Vogtlin, G. E. & Hsiao, M. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fuel-Cycle energy and emission impacts of ethanol-diesel blends in urban buses and farming tractors.

Description: About 2.1 billion gallons of fuel ethanol was used in the United States in 2002, mainly in the form of gasoline blends containing up to 10% ethanol (E10). Ethanol use has the potential to increase in the U.S. blended gasoline market because methyl tertiary butyl ether (MTBE), formerly the most popular oxygenate blendstock, may be phased out owing to concerns about MTBE contamination of the water supply. Ethanol would remain the only viable near-term option as an oxygenate in reformulated gasoli… more
Date: September 11, 2003
Creator: Wang, M.; Saricks, C. & Lee, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Detailed Chemical Kinetic Modeling of Diesel Combustion with Oxygenated Fuels

Description: Emission standards for diesel engines in vehicles have been steadily reduced in recent years, and a great deal of research and development effort has been focused on reducing particulate and nitrogen oxide emissions. One promising approach to reducing emissions involves the addition of oxygen to the fuel, generally by adding an oxygenated compound to the normal diesel fuel. Miyamoto et al. [1] showed experimentally that particulate levels can be significantly reduced by adding oxygenated specie… more
Date: January 11, 2000
Creator: Curran, H. J.; Fisher, E. M.; Glaude, P.-A.; Marinov, N. M.; Pitz, W. J.; Westbrook, C. K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measuring the Effect of Fuel Chemical Structure on Particulate and Gaseous Emissions using Isotope Tracing

Description: Using accelerator mass spectrometry (AMS), a technique initially developed for radiocarbon dating and recently applied to internal combustion engines, carbon atoms within specific fuel molecules can be labeled and followed in particulate or gaseous emissions. In addition to examining the effect of fuel chemical structure on emissions, the specific source of carbon for PM can be identified if an isotope label exists in the appropriate fuel source. Existing work has focused on diesel engines, but… more
Date: September 11, 2003
Creator: Buchholz, B. A.; Mueller, C. J.; Martin, G. C.; Upatnicks, A.; Dibble, R. W. & Cheng, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Heavy Vehicle Propulsion System Materials Program Semiannual Progress Report for April 2000 Through September 2000

Description: The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1-3 trucks to realize a 35% fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7-8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technol… more
Date: December 11, 2000
Creator: Johnson, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Develop the dual fuel conversion system for high output, medium speed diesel engines. Quarterly report number 2, January 1--March 31, 1997

Description: Energy Conversions Incorporated has continued to work on the EMD-710 dual-fuel test cell in the second quarter of the project. The project is on schedule and is sticking to their original timeline. The tasks performed and percent complete are spark prechamber work--50% done; diesel prechamber work--50% done; gas compressor--100% complete; port injection work--50% complete; hydraulic gas inlet valve work--30% complete; knock board modifications--75% complete; test documentation--50% complete; re… more
Date: April 11, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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