Ethanol/gasoline blends as automotive fuels
An experimental study of gasoline and 10% ethanol/90% gasoline blends was made using five late-model vehicles operated on a climate-controlled chasis dynamometer. Data were obtained to permit comparisons of fuel economy, emissions, and other significant operational characteristics observed in tests with the two fuels. Volumetric fuel economy was shown to be slightly decreased while energy economy was slightly increased using the ethanol/gasoline blend. Compared with the results using base gasoline, the use of the ethanol/gasoline blend had no adverse effect upon regulated emissions at test temperatures within the range 20/sup 0/ to 75/sup 0/ F; at 100/sup 0/ F there were mirror increases in emissions using the ethanol/gasoline blends. Addition of ethanol at 10% concentration generally either had no effect or only slight effect on unburned hydrocarbon; an exception was noted for 100/sup 0/ F at which temperaure unburned hydrocarbon from the blend was increased significantly over that found with the base fuel. Road octane quality of the ethanol/gasoline blend was increased by about 3.5 numbers over the base fuel.
- Research Organization:
- Department of Energy, Washington, DC (USA)
- Sponsoring Organization:
- Not Available; USDOE
- OSTI ID:
- 6139929
- Report Number(s):
- CONF-790520-5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental results using methanol and methanol/gasoline blends as automotive engine fuel
Methanol/gasoline blends as automotive fuel