A Two-Zone Model Analysis of Heat Release Rate in Diesel Engines

Paper #:
  • 972959

Published:
  • 1997-10-01
Citation:
Kamimoto, T., Minagawa, T., and Kobori, S., "A Two-Zone Model Analysis of Heat Release Rate in Diesel Engines," SAE Technical Paper 972959, 1997, https://doi.org/10.4271/972959.
Pages:
10
Abstract:
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.
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