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Unburned Hydrocarbons in Closed Vessel Explosions, Theory versus Experiment Applications to Spark Ignition Engine Exhaust
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1967 by SAE International in United States
Annotation ability available
Experimentally determined and theoretically calculated concentrations of unburned fuel in the exhaust products of a combustion system amenable to theoretical calculations have been compared. Propane-air mixtures were spark-ignited in the center of spherical combustion bombs of various sizes. By this means, the relative importance of the quench phenomenon (a surface effect) has been evaluated. The results show that simple application of quench theory is not consistent with the experimental results. Use of a modified quench theory, based on the results from the bomb experiments, for theoretical calculations of unburned hydrocarbon in engine exhaust indicates that the exhaust unburned hydrocarbon concentration from a large-displacement, low-compression ratio engine should be much lower than that of a small-displacement, high-compression ratio engine.
CitationAgnew, J., "Unburned Hydrocarbons in Closed Vessel Explosions, Theory versus Experiment Applications to Spark Ignition Engine Exhaust," SAE Technical Paper 670125, 1967, https://doi.org/10.4271/670125.
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