Experimentation and Performance Parametric Optimization of Soybean-Based Biodiesel Fired Variable Compression Ratio CI Engine Using Taguchi Method

Abstract

In this study, the performance of a variable CR-type CI engine is investigated experimentally and optimized using Taguchi methods. Fuels consist of Common Diesel Fuel (CDF), 10%, and 20% mixes of soybean biodiesel. A novel single-step transesterification method is employed in this work to create biodiesel. Investigations are conducted on the engine's entire performance, including the braking power (BP), specific fuel consumption (SFC), CO, and NOx emissions. The results show that the kinds of fuel have the most impact on braking power, contributing 62.25% and that the load, types of fuel, and load have the largest impacts on SFC, CO, and NOx emission, contributing 89.7%, 49.62%, and 57.54%, respectively. With CDF, SOYA B10, and SOYA B20, respectively, SFC and CO emission percentage decreases of 60%, 50%, and 45% and 66.66%, 4%, and 6.7% have been observed. 3.66 kW of braking power, 0.34 kg/kWh of SFC, 0.028% of CO emission, and 182 ppm of NOx emission are the optimal performances that are attained when providing BP more weight. 2.62 kW of brake power, 0.91 kg/kWh of SFC, 0.04% of CO emission, and 28 ppm of NOx emission are the optimal performance results obtained when NOx is given greater weight.