Effects of Different Fractions of Biodiesel (B0, B7, B10 and B20) on the Performance Characteristics of Direct Injection Compression Ignition Engine

Saheed Wasiu and Nurul Syuhadah

The purpose of this research is to determine that biodiesel is feasible as an alternative fuel in a diesel engine. This study was conducted due to the issues of fossil fuel depletion and the cost that arises from insufficient supply of fossil fuel. Biodiesel is believed to be the most promising alternative fuel to overcome fossil fuel depletion and to produce an engine that able to deliver a high performance and good fuel consumption. Even though, research conducted on biodiesel is only on the lower fraction B5 and B7. A higher fraction of biodiesel is not yet fully utilized in internal combustion engine, resulting with unclear and broad possibilities of biodiesel potentials. Hence, the primary objective of this research is to experimentally investigate the performance characteristics of direct injection of compression ignition engine under the influence of higher fraction of biodiesel (B0, B7, B10 and B20). The experiment was carried out on a 4-stroke single cylinder engine at three different throttle loads (idle load, part load and full load), stoichiometry mixture, a range of 1000 - 1750 rpm and different mixtures of biodiesel (B0, B7, B10 and B20). The results obtained at various loading conditions under consideration, showed that for specified percentage of biodiesel blends, increasing in the engine speed brings about an increment in brake power (BP), while a significant improvement can be observed in brake specific fuel consumption (BSFC), just as brake thermal efficiency (BTE) was increased. Thus, it can be technical concluded that the implementation of higher fraction of biodiesel is a viable alternatives fuel strategy that can guaranteed better performance characteristics and a higher thermal efficiency of internal combustion engine (direct injection compression ignition engine).

Volume 11 | Issue 1

Pages: 75 - 81