Validation of a Self-Tuning Gross Heat Release Algorithm

摘要

The present paper shows the validation of a self-tuning heat release method with no need to model heat losses, crevice losses and blowby. Using the pressure and volume traces the method estimates the polytropic exponents (before, during and after the combustion event), by the use of the emission values and amount of fuel injected per cycle the algorithm calculates the total heat release. These four inputs are subsequently used for computing the heat release trace. The result is a user-independent algorithm which results in more objective comparisons among operating points and different engines.