00804663

Component

https://doi.org/10.3141/1738-10

http://scholar.google.com...ardt&publication_year=2000

Limitations on the use of petroleum-based diesel fuel in California could occur pursuant to declaration by the California Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a toxic air contaminant subject to the state's Proposition 65. It is the declared intention of CARB not to ban diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible "midcourse" strategies that result in some degree of (conventional) diesel displacement. In the first case, substantial displacement of compression-ignition (CI) by spark-ignition engines occurs and diesel fuel remains admissible for ignition assistance as a pilot fuel in natural-gas-powered heavy-duty vehicles. Daily gasoline demand in California increases by 32.2 million L (8.5 million gal) overall, about 21% above the 2010 baseline demand projected by California's energy and environmental agencies. Daily natural gas demand increases by 13.6 million diesel L (3.6 million gal) equivalents, about 7% above projected (total) consumption level. In the second case, CI engines utilize substitutes having similar ignition and performance properties for petroleum-based diesel. For each case, ANL estimated localized air emission plus generalized greenhouse gas and energy changes. Fuel replacement by dimethyl ether yields the greatest overall reduction in nitrogen oxide emissions. All scenarios bring about fine particulate matter (PM10) reductions relative to the 2010 baseline, with greatest reductions from the CI-displacement case and the least from fuel replacement by Fischer-Tropsch synthetic diesel. Institutional and cost implications of vehicle and engine replacement were not formally evaluated.

This paper appears in Transportation Research Record No. 1738, Energy, Air Quality, and Fuels 2000.

English

p. 86-93

2000

Transportation Research Record

0309067413

Figures (6) ; References (16) ; Tables (1)

Air pollution; Alternate fuels; Compression ignition engines; Contaminants; Demand; Diesel fuels; Energy consumption; Estimates; Greenhouse gases; Natural gas; Nitrogen oxides; Particulates; Spark ignition engines; State laws; Strategic planning

Emissions reduction

California

Energy; Environment; Highways; Public Transportation; Railroads

TRIS, TRB, ATRI

Jan 12 2001 12:00AM

• ASSESSING IMPACTS OF IMPROVED SIGNAL TIMING AS A TRANSPORTATION CONTROL MEASURE USING AN ACTIVITY-SPECIFIC MODELING APPROACH
• CARBON DIOXIDE EMISSIONS FROM WORLD PASSENGER TRANSPORT: REDUCTION OPTIONS
• FROM HERE TO EFFICIENCY: TIME LAGS BETWEEN INTRODUCTION OF NEW TECHNOLOGY AND ACHIEVEMENT OF FUEL SAVINGS
• FUTURE WORLD OIL PRICES AND THE POTENTIAL FOR NEW TRANSPORTATION FUELS
• IMPORTANCE OF VEHICLE COSTS, FUEL PRICES, AND FUEL EFFICIENCY IN HYBRID ELECTRIC VEHICLE MARKET SUCCESS
• LAND USE AS AN AIR QUALITY CONTROL MEASURE: REVIEW OF CURRENT PRACTICE AND EXAMINATION OF POLICY OPTIONS
• NATURAL GAS AS A MARINE PROPULSION FUEL: ENERGY AND ENVIRONMENTAL BENEFITS IN URBAN FERRY SERVICE
• REQUIREMENTS FOR EVALUATING TRAFFIC SIGNAL CONTROL IMPACTS ON ENERGY AND EMISSIONS BASED ON INSTANTANEOUS SPEED AND ACCELERATION MEASUREMENTS
• TO LDT OR NOT TO LDT
• TOWARD A STRATEGIC PLAN FOR TRANSPORTATION-AIR QUALITY RESEARCH, 2000-2010
• VMT-MIX MODELING FOR MOBILE SOURCE EMISSIONS FORECASTING: FORMULATION AND EMPIRICAL APPLICATION