DESIGN AND ANALYSIS OF EXHAUST MANIFOLD OF MULTI CYLINDER SI ENGINE USING FINITE ELEMENT METHOD

Abstract

 
Manifold is one in every of the important elements of 
IC engines for improving the volumetrically 
efficiency. In burning engine, volumetrically 
efficiency is one in every of the factor in crucial how 
much quantity of power output will generate as 
compared to its capability. The volumetrically 
efficiency of the engine is magnified by reducing the 
back pressure within the manifold. In this paper, an 
existing model of an engine Exhaust manifold is 
modeled in 3D modeling software. The design of the 
exhaust manifold is changed. In existing model the 
bend radius of 48mm and exhaust is at the centre of the 
header, the models are modeled in CATIA. Thermal 
analysis is done for both the models using different 
materials copper, manganese, nickel and stainless 
steel. After thermal analysis CFD analysis is done for 
both models at different mass flow rates. Hence, it is 
concluded manifold model is better.