Experimental Investigation of Performance and Emission of Diesel Engine Fuelled with Preheated Jatropha Biodiesel and its Blends with Ethanol

As the cost of petroleum fuel is rising day by day. Here is a rising demand for research for sustainable atmosphere and cost effective alternate fuel. Conventional fuel like diesel is replaced with alternative fuels as these fuels are economically, attractive and renewable. Bio-diesel fuel is diesel fuel replacement, and has a few attractive properties such as biodegradability, renewability, comparable performance as well as low emission. The bio-diesel viscosity is higher than diesel fuel. The current investigation is to reduce the bio-diesel viscosity by pre-heating. In this experimental analysis diesel fuel, Jatropha bio-diesel, preheated Jatropha bio-diesel (PJBD), 80% preheated Jatropha bio-diesel-20% ethanol (PJBD80E20) fuels is tested. Experiment has been performed on the basis of constant revolution per minute, and the engine is taken as diesel engine tested on different loading conditions. The experimental analysis is based on the performance parameters like brake specific fuel consumption, brake thermal efficiency along with the exhaust emission parameters like CO, HC, NOx and smoke. This research paper is based on the comparison of different fuels with respect to the diesel which is taken as reference fuel. Eventually it is concluded that BTE decreases slightly whereas BSFC increases as the engine fuelled with PJBD80E20 as compare to neat diesel fuel at different load conditions. In the same testing condition, a slight decrease in CO and HC emission and significant reduction in NOx emission were observed, however, there is a slight increase in smoke emission was observed as compare to diesel fuel.