A new phenomenological heat release model for thermodynamical simulation of modern turbocharged heavy duty Diesel engines

The recent developments in heavy duty Diesel engine technology, in particular high pressure, electronically controlled flexible injection devices, have made the first empirical models for the calculation of combustion heat release obsolete. The aim of this paper is to present a new phenomenological, flexible heat release model for modern turbocharged heavy duty Diesel engines. First of all, a literature survey is made, analysing the various kinds of existing models. The second part of the paper is a detailed description of the new model. In the first section, the main equations are given and it is explained how the model was designed. The second section deals with the parameterisation of the model. The third part presents the main results of the model, which are compared to CFD calculations and experimental measurements. Finally, a brief summary of the main results is made, along with perspectives for future work.