Fuel-cycle energy and emissions impacts of tripled fuel-economy vehicles

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This paper presents estimates of the fill fuel-cycle energy and emissions impacts of light-duty vehicles with tripled fuel economy (3X vehicles) as currently being developed by the Partnership for a New Generation of Vehicles (PNGV). Seven engine and fuel combinations were analyzed: reformulated gasoline, methanol, and ethanol in spark-ignition, direct-injection engines; low-sulfur diesel and dimethyl ether in compression-ignition, direct-injection engines; and hydrogen and methanol in fuel-cell vehicles. Results were obtained for three scenarios: a Reference Scenario without PNGVs, a High Market Share Scenario in which PNGVs account for 60% of new light-duty vehicle sales by 2030, and a Low Market ... continued below

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18 p.

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Mintz, M. M.; Vyas, A. D. & Wang, M. Q. December 18, 1997.

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This paper presents estimates of the fill fuel-cycle energy and emissions impacts of light-duty vehicles with tripled fuel economy (3X vehicles) as currently being developed by the Partnership for a New Generation of Vehicles (PNGV). Seven engine and fuel combinations were analyzed: reformulated gasoline, methanol, and ethanol in spark-ignition, direct-injection engines; low-sulfur diesel and dimethyl ether in compression-ignition, direct-injection engines; and hydrogen and methanol in fuel-cell vehicles. Results were obtained for three scenarios: a Reference Scenario without PNGVs, a High Market Share Scenario in which PNGVs account for 60% of new light-duty vehicle sales by 2030, and a Low Market Share Scenario in which PNGVs account for half as many sales by 2030. Under the higher of these two, the fuel-efficiency gain by 3X vehicles translated directly into a nearly 50% reduction in total energy demand, petroleum demand, and carbon dioxide emissions. The combination of fuel substitution and fuel efficiency resulted in substantial reductions in emissions of nitrogen oxide (NO{sub x}), carbon monoxide (CO), volatile organic compounds (VOCs), sulfur oxide, (SO{sub x}), and particulate matter smaller than 10 microns (PM{sub 10}) for most of the engine-fuel combinations examined. The key exceptions were diesel- and ethanol-fueled vehicles for which PM{sub 10} emissions increased.

Physical Description

18 p.

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OSTI as DE00008121

Medium: P; Size: 18 pages

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  • 77th Annual Meeting of the Transportation Research Board, Washington, DC (US), 01/12/1998--01/15/1998

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  • Report No.: ANL/ES/CP-94251
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 8121
  • Archival Resource Key: ark:/67531/metadc739333

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 18, 1997

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 7, 2017, 4:08 p.m.

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Mintz, M. M.; Vyas, A. D. & Wang, M. Q. Fuel-cycle energy and emissions impacts of tripled fuel-economy vehicles, article, December 18, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc739333/: accessed August 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.