Phenomenological models for pre-calculation of the combustion in gas engines

Abstract

The engine cycle simulation remains a very important tool for increasing the efficiency of the engine development process. Consequently, two combustion models for lean-burning gas engines based on phenomenological approaches were developed at the Institute for Internal Com bustion Engines (LVK — Lehrstuhl fur Verbrennungskraftma schinen) at the Technische Universitat Munchen in the FVV research project No. 874. The goal was to model in detail the physical and chemical processes involved in combustion to enhance the applicability of the models and deepen our understanding of the interrelation ship of the complex processes that occur within an engine. The first model describes the combustion within spark-ignition open combustion chambers and the second one depicts the combustion in pre-chamber gas engines.