Influence of injection timing on engine performance, emission characteristics of Mimusops Elangi methyl ester

The improvement in engine performance and exhaust emissions reduction are the major important issues in developing a more efficient engine. The injection timing is one the major parameters that affect the engine performance and emissions for a diesel engine. The present work focused on characterising the influence of injection timing on engine performance and exhaust emissions. This has been critically investigated for B20 + 25 ppm (20% Mimusops Elangi methyl ester-80% diesel fuel + 25 ppm of TiO2 nanoparticle) additive as alternative fuel. The B20 +25 ppm TiO2 nanoparticle additive produces more HC and CO emission, but reduce NOX emission when injection timing is retarded. Advancement in injection timing for B20 +25 ppm TiO2 nanoparticle additive results in an increase of brake thermal efficiency, decreases brake specific fuel consumption and giving out less HC, CO, smoke emissions but the marginal increase in the NOX emission.