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Heat Release Analysis of Engine Pressure Data
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English
Abstract
In analyzing the processes inside the cylinder of an internal combustion engine, the principal diagnostic at the experimenter's disposal is a measured time history of the cylinder pressure. This paper develops, tests, and applies a heat release analysis procedure that maintains simplicity while including the effects of heat transfer, crevice flows and fuel injection. The heat release model uses a one zone description of the cylinder contents with thermodynamic properties represented by a linear approximation for γ(T). Applications of the analysis to a single-cylinder spark-ignition engine, a special square cross-section visualization spark-ignition engine, and a direct-injection stratified charge engine are presented.
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Authors
- J. A. Gatowski - Sloan Automotive Laboratory, Massachusetts Institute of Technology
- E. N. Balles - Sloan Automotive Laboratory, Massachusetts Institute of Technology
- K. M. Chun - Sloan Automotive Laboratory, Massachusetts Institute of Technology
- F. E. Nelson - Sloan Automotive Laboratory, Massachusetts Institute of Technology
- J. A. Ekchian - Sloan Automotive Laboratory, Massachusetts Institute of Technology
- John B. Heywood - Sloan Automotive Laboratory, Massachusetts Institute of Technology
Topic
Citation
Gatowski, J., Balles, E., Chun, K., Nelson, F. et al., "Heat Release Analysis of Engine Pressure Data," SAE Technical Paper 841359, 1984, https://doi.org/10.4271/841359.Also In
References
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