%0 Journal Article
%T EXPERIMENTAL COMPARATIVE STUDY BETWEEN PERFORMANCE AND EMISSIONS OF JATROPHA BIODIESEL AND DIESEL UNDER VARYING INJECTION PRESSURES
%A P. Suresh Kumar
%A Ramesh Kumar Donga
%A P. K. Sahoo
%J International Journal of Engineering Sciences and Emerging Technologies
%D 2012
%I IAET
%X Most modern searches are directed to alternative fuels because the buffer stock from the petroleum oils reduces with time and the fossil fuels are worst impact on environmental pollution. Now days, there are many sources of renewable energy. Bio diesel is just one source, but a very important one. Currently Jatropha biodiesel (JBD) is receiving attentions as an alternative fuel for diesel engine. Environmental impact assessment is one of the key essential factors to prevent global warming by reducing carbon monoxide and NOx emissions from various sources. This thesis presents the work done within the Ph. D research project focussing on the utilization of JBD with different fuel injection pressure angles in indirect injection (IDI) diesel engine. The work scope included fundamental experimental studies on brake thermal efficiency and emission studies of Jatropha in comparison to diesel fuel and the feasibility analysis of diesel substitution with JBD and future work recommendation of possible changes to the injection system. An IDI diesel engine was tested by diesel,100% biodiesel (B100), with respect to varying fuel injection pressures of 160, 170 and 180 kgf/cm2. The engine characteristics with Jatropha biodiesel were compared against those obtained using diesel fuel. From the results, it is observed that at 100% load the brake thermal efficiency of the biodiesel improves as the fuel injection pressure is increased while keeping advance angle of fuel injection unchanged and for diesel the brake thermal efficiency decreases at the same conditions. In the subsequent section, the engine emissions from Jatropha biodiesel and diesel fuels are compared, paying special attention to the varying fuel injection pressures at different crank angles. Reasons behind prominent emissions such as NOX, HC, CO2, CO and smoke are comprehensively discussed.
%K Bio-diesel
%K Fuel injection pressures
%K Brake thermal efficiency and exhaust emissions.
%U http://www.ijeset.com/media/10N6-IJESET606.pdf