Experimental Investigation of Performance on Diesel Engine with Different Blends of Castor Oil at 100% EGR

Biodiesel has been used as a renewable and potential fuel in diesel engines. Biodiesel and its blends with diesel is a better substitute on the basis of single fuel concept for diesel engine. Many researchers have tried different proportions of the blends with diesel. Difficulty with biodiesel run engine is that it emits higher NOx emission. In order to overcome this limitation researchers have adopted various techniques. The present work is to study the effect of Exhaust Gas Recirculation (EGR) on the performance and emissions of a single cylinder diesel engine. Exhaust Gas Recirculation (EGR) System means to use the Exhaust Gas coming from Exhaust Manifold to inlet manifold in order to reduce the emission of NOX, which is particularly very harmful. This paper reports the experimental investigation carried out on the direct injection diesel engine when pure diesel, B25% castor oil, B75% castor oil at 100 % EGR. This research paper illustrates the thermal performance on diesel engine including brake power, total fuel consumption, brake mean effective pressure, brake specific fuel consumption, brake thermal efficiency. Using Exhaust Gas Recirculation (EGR) Technique in engines, the emissions are very much controlled. This method is very reliable in terms of fuel consumption.