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A Three-Zone Heat Release Model for DI Diesel Engines
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English
Abstract
Heat release analysis brings out the various phenomena that cause the development of the combustion chamber pressure. A three-zone heat release model computes the rate of heat release and other properties of all the three zones (representing vaporized fuel, unburnt and burnt gas zones) from measured pressure-crank angle data obtained from an instrumented engine. It is a useful diagnostic tool giving a great deal of information about an existing engine. Heat release analyses for five different operating conditions have been conducted for a DI diesel engine. Also, ignition delay, wall heat losses and mass, volume and temperature in each of the three zones have been computed. It is found that the overall quality of the computed heat release rates are strongly dependent on the accuracy of the measured pressure data. The model can be integrated to a high speed data acquisition system for concurrent analysis of the heat release patterns.
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Authors
Citation
Sastry, G. and Chandra, H., "A Three-Zone Heat Release Model for DI Diesel Engines," SAE Technical Paper 940671, 1994, https://doi.org/10.4271/940671.Also In
References
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- Heat Release Analysis of DI Diesel Engines using A Three-Zone Model M.Tech Dissertation Report Dept. of Mechanical Engg., Regional Engineering College Warangal, A.P., India March 1993
- Deshpande, S.R. Chandra Harish Narasimhan R Heat Release Analysis of a Two-Stroke Gasoline Engine SAE Paper 880175
- Darda Monish Chandra Harish Detailed Steady State Engine Mapping Using E-DACS for Thorough Performance Analysis SAE for 1994 Annual Congress