A thermodynamic two-zone model which assumes a stoichiornetric burned gas region and unburned air region is presented in an attempt to calculate more precise rate of heat release of diesel combustion. A comparison is made of the rate of heat release obtained by the two-zone model with that obtained by the conventional single-zone model. It shows around 10 % increase in the rate of heat release with the two-zone model. The effect of state equation of gas is also examined with the single-zone model and the use of a real gas law in stead of the perfect gas law is found to yield minor difference in the rate of heat release at a high boost operating condition.
A Two-Zone Model Analysis of Heat Release Rate in Diesel Engines
Sae Technical Papers
International Fuels & Lubricants Meeting & Exposition ; 1997
1997-10-01
Conference paper
English
A two-zone model analysis of heat release rate in Diesel engines
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