Effects of biodiesel-pentanol-diesel blends with varied EGR in a CRDI engine

Abstract

Emission standards are getting stricter day by day, due to the rise in the growth of automobiles globally. When compared to other IC engines, Diesel engines cause more harmful exhaust gas and this has led to potentially catastrophic impact on the environment like global warming and ozone layer depletion. To overcome this problem, we need renewable sources but since it is currently in high demand, this has led to the development of alternative fuels in India. This study investigates the impact of n-Pentanol/Karanja oil biodiesel/diesel fuel blends in a common rail direct injection engine. The addition of higher-order alcohol (n-Pentanol) will improve the low temperature properties of the biodiesel-diesel blend and high volatility and low viscosity of Pentanol will significantly reduce the emissions. The fuel blend B20P10D70 (KME 20%, n-Pentanol 10% and Diesel 70%) was carried out at 21°CA and 25° CA respectively with varied EGR at 10% and 20% to test both the engine parameters (BTE and BSFC) as well as exhaust gas emissions (CO, NOx, HC and Smoke).