ANALYSIS OF TWO WHEELER EXHAUST SILENCER WITH THERMODYNAMICS PRINCIPLE AND COMPUTER AIDED DESIGN

Abstract

The hot gases from engine passes through the exhaust system of the automobile at very high temperature. Exhaust system of an automobile consist of three parts such as exhaust manifold, catalytic converter and silencer out of those silencer having very short life span as there is lot of restriction provided to the flow of hot gases due to complex geometry in order to reduce the noise level hence gases staying more time in this section as compare to other two part of exhaust system. Hence silencer needs to be focused for thermal analysis in order to increase its life span. for this improvement in life span the uniform distribution of heat over the entire exhaust system which consequently enhanced life of the elements in the exhaust system is necessary . The problem recognized for this proposed study is to assess the heat flow during the passage of hot gasesand design the passage in such a way that it will minimize the destructive effects of hot-spots and localised heating due to heat transfer barriers over the length of thesilencer, especially at the front end mating with the exhaust manifold