COMBUSTION MODEL DEVELOPMENT AND VALIDATION

Abstract

In today’s world emissions from diesel engines imparts severe damage to the environment and health of human being. The study of emission control starts with the design and development of engines and ends with the implementation and installation of exhaust control devices and equipments. While designing engine the combustion modeling plays a crucial role on emission characteristics. For this purpose various types of combustion models are available which includes the simple fast and easily operated to complicated time consuming and detailed physical and chemical models. Phenomenological combustion modeling is one which lies in the category of simple, agile and thorough modeling. This study based on one of the phenomenological modeling where the purpose is to find the rate of heat release by providing the injection profile of fuel. It enables the distinguished study of the pilot and main combustion heat release by defining the pre-combustion and mixing controlled combustion. It facilitates the survey of evaporation perspectives and modeling that involves in the fuel injection and afterwards in the combustion characterization. It also compares the credibility of model by comparing results with the experimentally pressure curve generated model. The software MATLAB/SIMULINK is exercised to build this model.