Experimental Investigation into Effects of Addition of Aluminium Oxide on Performance, Combustion and Emission Characteristics of Pongamia Biodiesel Blends in CI Engine

“Effect of Pongamia biodiesel and its blends with aluminium oxide nanoparticle on engine performance, emissions and combustion characteristics in a CRDI system engine (4stroke 4 cylinder) with different engine speed and load has been done here. Diesel, B20, B20A50 dosages were added with an aid of ultra sonicator setup. Maximum torque attained by 15% and 20% POME blends was higher than mineral diesel, while higher biodiesel blends gave a slightly lesser torque. The Alumina oxide gavein1.0%reductioninbrakespecificfuel consumption due to chemical oxidation of fuel, BSFC for lower PME blends was comparable to pure diesel but BSFC increased for higher biodiesel blends. BSCO, BSHC and smoke emissions of pongamia biodiesel blends was lesser as compared to mineral diesel but the Brake specific nitrous emissions were higher. With the average Nitrous Oxide emissions of diesel were 14.09%, 15.46%, than those of B20A50, B20, respectively due to the intrinsic oxygen content in the Pongamia fuel along with better combustion temperature”.