Experimental Investigation of Mustard Biodiesel Blend Properties, Performance, Exhaust Emission and Noise in an Unmodified Diesel Engine☆

Abstract Mustard biodiesel was produced from waste mustard oil and physicochemical properties were investigated. MB showed superior calorific value (40.404 MJ/kg), oxidation stability (15.92 h), cloud point (5 °C) and pour point (-18 °C) than any other conventional biodiesels. During engine performance test MB10 and MB20 showed 8-13% higher BSFC and 5-6% lower BTE compared to B0. By contrast, MB blends produced 7-8% less BP and 6-8% less engine torque compared to B0. Engine emission and noise test showed 9-12% higher NO, 24-42% lower HC, 19-40% lower CO and 2-7% lower noise emission for MB blends compared to B0. Besides, comparable engine performance and emission characteristics were found for MB10 and MB20 compared to PB10 and PB20 respectively.