Greenhouse gas emission impacts of alternative-fueled vehicles: Near-term vs. long-term technology options
Conference
·
OSTI ID:577269
The U.S. transportation sector produces nearly one-third of total U.S. greenhouse gas (GHG) emissions. Among various transportation control strategies evaluated in the U.S., use of vehicles fueled with alternative fuels has been proposed to help solve urban air pollution problems, reduce U.S. dependence on imported oil, and reduce transportation GHG emissions. GHG emission impacts of alternative-fueled vehicles depend on type of fuels used, type of primary energy sources used to produce the fuels, and energy efficiencies of vehicles and up-stream energy production activities. Past studies have shown widely-varied, sometimes contradicting, results of GHG emissions by alternative-fueled vehicles. A fuel-cycle model has been developed at Argonne National Laboratory to estimate fuel-cycle emissions and energy consumption of various alternative-fueled vehicles. The model, called Greenhouse Gases, Regulated Emissions, and Energy use in Transportation (GREET), calculates fuel-cycle emissions of five criteria pollutants (volatile organic compounds, carbon monoxide, nitrogen oxides, sulfur oxides, and particulate matter) and three greenhouse gases (carbon dioxide, methanol, and nitrous oxide). In this paper, the GREET will be used to estimate fuel-cycle GHG emission impacts of near-term and long-term alternative-fueled vehicle technology options.
- OSTI ID:
- 577269
- Report Number(s):
- CONF-970522--
- Country of Publication:
- United States
- Language:
- English
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