Mixture Motion - Its Effect on Pressure Rise in a Combustion Bomb: A New Look at Cyclic Variation University of Michigan

Format:

Conference/Event

Author/Creator:

Cole, David E., author.

Conference Name:

National Fuels and Lubricants and Transportation Meetings (1968-10-29 : Tulsa, Oklahoma, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1968

Summary:

Cycle-to-cycle variation of pressure is a common problem in all spark-ignition engines. To examine the suspected influence of mixture-motion on this variation, a study was performed in a constant volume cylindrical bomb in which a jet of propane-air mixture was directed at the initial flame kernel. The rate of pressure rise of the jet-influenced combustion was compared to the rate for combustion in a quiescent mixture. The flame area, obtained using a spark schlieren photographic technique, and the calculated combustion rate were correlated with the pressure rate.The major results were: the rate of pressure rise increased approximately linearly with mixture jet velocity; and the width of the mixture-jet had an effect on the rate of pressure rise. A jet profile width slightly greather than the spark-gap produced the highest rate of pressure rise

Notes:

Vendor supplied data

Publisher Number:

680766

Access Restriction:

Restricted for use by site license