Performance and Emission Characteristics of Biodiesel Fueled Hydrogen Addition Engine Using EGR Technique

Abstract

In recent decades, the use of conventional fuels have increased dramatically due to the demand by the automotive and industrial sector. In order to overcome the depleting fossil fuels, alternative fuel is considered as an option, which could reliable source in the upcoming decades. Pongamia pinnata could an ideal alternative source for the production of biodiesel; hydrogen is expected to be an attractive clean alternative fuel in the near future to meet the stringent emission norms. This study investigated the performance and emission characteristics of four stroke single cylinder compression ignition engine with Pongamia pinnata biodiesel as an injected and hydrogen as an inducted fuel with EGR. In order to improve the performance of the engine, the experiment was conducted for different flow rate of hydrogen induction in the intake manifold with different EGR ratios. The performance and emission parameters were investigated with biodiesel fueled CI engine with variable flow rate of hydrogen induction with different EGR ratios. Results showed that the brake thermal efficiency was reduced by 1.31% and the emissions such as NOx, HC, CO were decreased by 2.22, 10.52 and 95.45%, respectively for 10% EGR at full-load conditions with 10 LPM of hydrogen induction, when compared with diesel operation.