Modification Method of Heat Release Rate Calculation for Diesel Engine

Based on former achievements and aimed at problems encountered in actual calculations,a modified method was developed and analyzed its error.It proves that this method,which needs to subtract estimated systematic error of heat release rate from its original value,is useful for accuracy improvement in heat release rate calculation without making it more complex.While calculating the heat release rates for a series of engine conditions,they may be modified using the polytropic indexes measured in the motored engine.