EXHAUST GAS ANALYSIS OF COMBUSTION IGNITION ENGINE BY USING CHEMICAL COATED WIRE MESH CATALYTIC CONVERTER

Abstract

An Exhaust emission is much concern about the Hydrocarbon (HC), Carbon Monoxide (CO) and Nitrogen
Oxide (NOx) from the automotive vehicles. This paper presents characteristics of a catalytic converter to be used for four
stroke four cylinder diesel engines. Catalytic converter with different catalyst for diesel engine to reduce pollute gases is
chosen for present work. The emphasis is given on hydrocarbon (HC), carbon monoxide (CO) and oxides of nitrogen. The
wire mesh is developed as catalyst the wire mesh is coated with zirconium dioxide (ZrO2). The catalyst materials are
inexpensive in comparison with conventional catalysts (noble metals) such as palladium or platinum. Catalytic converter
oxidizes harmful CO and HC emission to CO2 and H2O in the exhaust system and thus the emission in the automobile
vehicle is controlled. Emission of HC, CO and CO2 was measured and monitored for conventional OEM catalytic
converter system with ZrO2 coated wire mesh catalytic converter system. Performance of catalytic converter is depends
upon temperature. Optimized temperature was found for ZrO2 coated wire mesh catalytic converter for best performance.
Effect of wire mesh on break specific fuel consumption and brake thermal efficiency were recorded and analyzed. The
back pressure of the exhaust gases is measured by putting different number of wire mesh in the catalytic.