Vegetables Oil as Additive in Diesel Engine to Reduce Engine Emissions through Experimental Investigation

Compression Ignition (CI) engine are the drivers of economy hence attention focused to find out alternative fuels for these engines. Among various possible options, liquid biofuels seems to be most promising and suitable alternative to diesel in CI engines. Improving performance of diesel engine and reduction in engine emissions is key challenge. To reduce engine emission various additives are use by numerous researchers. The present work focuses on reduction of engine emissions and improvement in performance of diesel engine by using SVO and biodiesel in small proportion as additive in diesel engine. The present work has been carried out on single cylinder, four stroke, VCR, direct injection, water cooled 7bhp CI engine fuelled with karanja and palm straight vegetables oil (SVO) and respective biodiesel blends. Diesel and SVO (10%, 20% and 30%) and Biodiesels (10%, 20% and 30%) fuel blends were used to conduct short-term engine performance and emission tests at 85% load. It is found that use of SVO as additives in diesel engine helps to control NOx emission and use of Biodiesel as additives in diesel engine helps to control HC &CO emissions. These additives can be use in diesel engine without any major modification of engine.