Preliminary Investigation of Cycle-to-Cycle Variations in a Nonair-Breathing Diesel Engine

[+] Author and Article Information
M. Zheng, G. T. Reader

Department of Mechanical Engineering, The University of Calgary, Calgary, Alberta, Canada T2N 1N4

J. Energy Resour. Technol 117(1), 24-28 (Mar 01, 1995) (5 pages) doi:10.1115/1.2835316 History: Received September 03, 1993; Revised December 01, 1994; Online January 22, 2008


The effect of nonair mixtures on cycle-to-cycle variations of cylinder pressure characteristics was investigated experimentally with an indirect-injected (IDI) diesel engine. The engine intake temperature and pressure were maintained at normal air-breathing conditions when operated with nonair mixtures. Preliminary results indicate that increases in carbon dioxide concentration can cause significant cyclic variations. Moreover, the extent of such cyclic variations is notably influenced by the oxygen concentration and inert gas constituents of the working fluids.

Copyright © 1995 by The American Society of Mechanical Engineers
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