Feasibility Study of NOx Reduction by Exhaust Gas Recirculation (EGR) in Bio Diesel Fueled C I Engine

Abstract

The aim of this project work is to check the feasibility of Exhaust Gas Recircula-tion (EGR) technique for NOx reduction in a compression ignition engine fueled bybiodiesel diesel blend.Biodiesel is an oxygenated fuel. When biodiesel is used in an I C Engine, the forma-tion of NOx becomes higher. Dierent techniques are available for reduction in NOxformation, but Exhaust Gas Recirculation (EGR) is the most convenient because itcan be implemented to any I C Engine without much modication in the engine de-sign and noticeable reduction in NOx formation can be achieved.A deep literature review had been carried out from the research papers publishednationally and internationality. Experimental setup had been prepared as per therequirement. During Initial experiments, fuel composition had been changed by sup-plying various diesel-biodiesel blends.After comparison of results, it was found that 10% Biodiesel (on volume basis) canbe mixed with conventional diesel without much degradation in engine parameters.After getting optimized biodiesel-diesel blend, experiments were carried out with 5%,10% and 15% Exhaust Gas Recirculation (EGR). At the end of work, it was foundthat 10% EGR acts most eectively by 80% reduction in NOx formation at part loadconditions