Regional environmental impacts of methanol-fueled vehicles. Final report
The objectives of the study were to obtain, through simulation modeling, preliminary estimates of the regional environmental impacts methanol-fueled vehicles and to estimate the sensitivity of the model to important parameters and assumptions that affect the calculation of the impacts. The regional environmental effects of the use of M85 fuel (85 percent methanol and 15 percent gasoline) and M100 (neat methanol) relative to gasoline (an indoline blend) were estimated using a Lagrangian (trajectory) acid deposition model. The Comprehensive Chemistry Acid Deposition Model (CCADM), contains a detailed treatment of gas-phase and aqueous-phase chemistry and associated mass transfer, but provides for a less comprehensive representation of advection and diffusion. Two different meteorological regimes were analyzed: clear sky conditions and cloudy skies with a rain event. The study also included a review of gas- and aqueous-phase chemistry, with particular emphasis on methanol. The CCADM chemical mechanism was updated to include state-of-the-science (as of 1990) gas- and aqueous-phase chemistry including methanol chemistry. The CCADM was then used to analyze the regional environmental impacts from the use of methanol fuels. In performing such an analysis it was necessary to make several assumptions. The sensitivity of the analysis was examined through a series of simulations that varied key input parameters within their ranges of uncertainty.
- Research Organization:
- Systems Applications International, San Rafael, CA (United States)
- OSTI ID:
- 5238346
- Report Number(s):
- PB-92-176569/XAB; SYSAPP-91/151
- Resource Relation:
- Other Information: See also PB85-186492, PB85-185858 and DE88752844. Sponsored by Coordinating Research Council, Inc., Atlanta, GA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
10 SYNTHETIC FUELS
GASOHOL
ENVIRONMENTAL IMPACTS
FUEL SUBSTITUTION
METHANOL
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
C CODES
CHEMICAL REACTION KINETICS
CLOUD COVER
COMPUTERIZED SIMULATION
DEPOSITION
METEOROLOGY
OZONE
PHOTOCHEMISTRY
RAIN
REGIONAL ANALYSIS
SMOG
URBAN AREAS
VEHICLES
ALCOHOLS
ATMOSPHERIC PRECIPITATIONS
CHEMISTRY
COMPUTER CODES
FUELS
HYDROXY COMPOUNDS
KINETICS
LIQUID FUELS
ORGANIC COMPOUNDS
POLLUTION
REACTION KINETICS
SIMULATION
330800* - Emission Control- Alternative Fuels
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
290301 - Energy Planning & Policy- Environment
Health
& Safety- Regional & Global Environmental Aspects- (1992-)
299000 - Energy Planning & Policy- Unconventional Sources & Power Generation
100900 - Synthetic Fuels- Environmental Aspects- (1990-)