Combustion Simulation and Emission Prediction of Different Combustion Chamber Geometries Using Finite Element Method

Abstract

In global scenario rapid advancements in engineering and technology reflects in core mechanical engineering and automotive sector viz automobile and aeronautical engineering. Various researchers are working on smart materials, nano materials and composites materials for aeromechanical applications through sustainable manufacturing. Now a day’s light weight high strength, functional materials are manufactured using micro and nano-machining through computer integrated manufacturing. Advancements of computer interfaced tool are quite common in day to day life in the field of design, simulation and analysis. In the area of computational study, the governing equations are used in FEM and FEA to determine the feasibility of CAE model. For optimizing the combustion chamber geometries, CAE provides the most suitable tool. This research paper encompasses the simulation technique in different combustion chamber geometries with three different cavities on the piston land. The appropriate boundary conditions were constrained in the corresponding numeric model and the combustion simulations were solved using 3D Navier-Stokes equation. The NS solver discretized the FE model into FVM, coupled with species transport equations. The engine combustion parameters peak cylinder pressure of 110 bar, maximum temperature of 1075 K, emission particulates 12.4 PPM NOx and 0.000335 % CO were predicted in the elliptical bowl type of piston using Finite Element Method.