Optimization of cerium oxide added algae biodiesel blends by Taguchi and ANOVA methods in terms of emission and combustion characteristics

Abstract

AbstractPresently, the reduction of emission rates from the diesel engine is a significant aim of several researchers. Biodiesel has considered an alternative for diesel, but based on mechanical efficiency, its performance is very poor. Therefore, the nanoparticles are blended with the diesel and biodiesel for reducing emission and enhancing the engine performance characteristics. The major intention of the present work is to provide the finest fuel blend for the 4‐stroke diesel engine according to both emission and combustion characteristics. Here, the Hazantus (algae bio diesel) prepared via soxhlet extraction, and then it is blended with the diesel under three various ratios such as 1:9, 2:8, 3:7. Based on these three ratios, the performance of the variable compression ratio engine has been investigated and is optimized by using the Taguchi method, which exhibited that the 2:8 biodiesel blend is optimum based on mechanical performance and combustion. Further, to enhance biodiesel performance concerning emission characteristics, the cerium oxide nanoparticles mixed with the optimum fuel blend at the proportion rate of 25 and 50 mg. The emission rates obtained from this research work are 1000PPM of NOx, 0.052% of CO, and 38% of HC.