Flame propagation, autoignition and combustion in alcohol-petroleum-air mixtures and other alternative fuels. Final report, August 1, 1977-December 31, 1978
Technical Report
·
OSTI ID:6019111
The main goal of this program is to determine the combustion characteristics of the future alternative fuels in gasoline, diesel engines so that future combustion engines may be designed for best energy conversion and minimum emissions. The approach consists of studying the process of combustion in actual engines to obtain data needed to either design new engines or modify and adapt existing engines to the alternative fuels. This includes both experimental and theoretical work. The experimental work consists of instrumenting and running tests on three research engines and measuring the different combustion characteristics. The theoretical work includes calculating and correlating the flame speed and ignition delay with different fuel and air properties and engine operating parameters. New techniques have been developed to determine the combustion characteristics of fuels. Traveling ionization probe to measure the flame arrival time at different locations in the combustion chamber of gasoline engines without interrupting their operation. A new mechanism to sample the combustion products at any point in the cycle and measure the NO and particulate formation. Sampling the gases during the ignition delay period will help us to understand the source of odorous emissions and to solve such problems as cold starting and noise in the diesel engine when it is run on low ignition quality alternative fuels. In addition, a modified Cetane Scale has been developed to rate the auto ignition properties of alternate low cetane fuels.
- Research Organization:
- Wayne State Univ., Detroit, MI (USA)
- OSTI ID:
- 6019111
- Report Number(s):
- COO-4486-5
- Country of Publication:
- United States
- Language:
- English
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