Reduction 0f NOx Emissions with Three - Way Catalytic Converter For IDI Engine Fuelled With Diesel, JSVO and Their Blends

Abstract

Petroleum based fuels are obtained from limited reserves. These are finite reserves which are highly concentrated in certain regions of the world. Currently Jatropha biodiesel is receiving attention as an alternative fuel for diesel engine. The subject of the research presented in this thesis was the development new control strategies for automotive three way catalytic converters in order to fulfill future ultra-low exhaust emission standards. Three way catalytic converter is an effective technique to reduce NOx emissions from diesel engines because of Rh being used as catalyst helps to release the oxygen atoms stored in NOx in the reduction reaction. After these studies succeeded in reducing the NOx emissions from biodiesel by three way catalytic converter without a significant change of BTE, BSFC and smoke opacity. The main focus of this dissertation is on finding out the best or the most suitable blend of biodiesel which when used gives out least automotive exhaust emissions using a 3 way catalytic converter. A single cylinder water cooled IDI diesel engine was used for investigation. Smoke , NOx ,CO, CO2 emissions were recorded and various engine performance parameters were also evaluated . The results and discussion based on the effect of 3 way catalytic converter on engine performance and emission characteristics of JB20, JB40, JB60, JB80, JB100 and diesel fuel without 3 way catalytic converter . The engine was tested at high load condition(100% maximum load) and fixed speed 1000 rpm. The performance parameters are measured and recorded for diesel fuel and JB and their blends.