Crc low- and intermediate-temperature driveability program using gasoline- alcohol blends
A cooperative test program was conducted in 1986 and 1987 to characterize the relationship between cold-start and warmup driveability and gasoline volatility parameters of T10, T50, and T90 distillation temperatures. Hydrocarbon-only and gasoline-alcohol blends were tested. The test program was divided into two phases: the intermediate-temperature (40 F to 60 F) phase was conducted in Paso Robles, California, from October 13 through November 14, 1986; and the low-temperature (10 F to 40 F) phase was conducted in Brainerd, Minnesota, from January 19 through February 18, 1987. Driveability was better with high volatility fuels, and at intermediate ambient temperatures. Fuel-injected vehicles exhibited better driveability than carbureted vehicles. Driveability with hydrocarbon-only gasolines with significantly better than gasoline-ethanol blends, and gasoline-methanol:TBA blends. Compared with gasoline-methanol:TBA blends gasoline-ethanol blends gave significantly better driveability. Regression equations which related volatility to vehicle cold-start and warmup driveability were developed for both temperature phases.
- Research Organization:
- Coordinating Research Council, Inc., Atlanta, GA (USA)
- OSTI ID:
- 6727484
- Report Number(s):
- AD-A-221321/3/XAB; CRC--568
- Country of Publication:
- United States
- Language:
- English
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ADDITIVES
ALCOHOLS
CALIFORNIA
CARBURETORS
CLIMATES
COMPARATIVE EVALUATIONS
ENGINES
ETHANOL
FEDERAL REGION IX
FEDERAL REGION V
FUEL ADDITIVES
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
GASOHOL
GASOLINE
HEAT ENGINES
HYDROXY COMPOUNDS
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
LOW TEMPERATURE
MATHEMATICS
MEDIUM TEMPERATURE
METHANOL
MINNESOTA
NORTH AMERICA
ORGANIC COMPOUNDS
PERFORMANCE
PERFORMANCE TESTING
PETROLEUM PRODUCTS
REGRESSION ANALYSIS
START-UP
STATISTICS
TEMPERATURE EFFECTS
TESTING
USA
VOLATILITY