Development of the Cooper-Bessemer CleanBurn™ Gas-Diesel (Dual-Fuel) Engine

[+] Author and Article Information
D. T. Blizzard

Cooper-Bessemer Reciprocating Products Division, Cooper Industries, Grove City, PA 16127

F. S. Schaub, J. G. Smith

Cooper-Bessemer Reciprocating Products Division, Cooper Industries, Mount Vernon, OH 43050

J. Eng. Gas Turbines Power 114(3), 480-487 (Jul 01, 1992) (8 pages) doi:10.1115/1.2906614 History: Received September 16, 1991; Online April 24, 2008


NOx emission legislation requirements for large-bore internal combustion engines have required engine manufacturers to continue to develop and improve techniques for exhaust emission reduction. This paper describes the development of the Cooper-Bessemer Clean Burn™ gas-diesel (dual-fuel) engine that results in NOx reductions of up to 92 percent as compared with an uncontrolled gas-diesel engine. Historically, the gas-diesel and diesel engine combustion systems have not responded to similar techniques of NOx reduction that have been successful on straight spark-ignited natural gas burning engines. NOx levels of a nominal 1.0 g/BHP-h, equal to the spark-ignited natural gas fueled engine, have been achieved for the gas-diesel and are described. In addition, the higher opacity exhaust plume characteristic of gas-diesel combustion is significantly reduced or eliminated. This achievement is considered to be a major breakthrough, and the concept can be applied to both new and retrofit applications.

Copyright © 1992 by The American Society of Mechanical Engineers
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