Abstract: “Diminishing of conventional fuels and excessive use of fuels leads to deterioration of the environment, which focuses the research on biofuels. Biofuels from different sources attract the attention of research due to low emission and biodegradability. This paper examines and compares the emission of Jatropha Curcus (JCO) and Madhuca Longifolia (MIO) B20% blends with vegetable oil. Engine emission results indicated that JCO 20 and MIO 20 fuels reduced the average emission of carbon monoxide by 12 and 11% respectively, and hydrocarbons by 15 and 12% respectively. However, the JCO 20 and MIO 20 fuels slightly increased nitrous oxide emission by 7 and 9%, respectively, and carbon dioxide by 7 and 5% respectively compared to conventional diesel. In conclusion, JCO and MIO are potential feedstock for biodiesel production and produce cleaner exhaust emission.”

Keywords: Jatropha Curcus, Madhuca Longifolia, Emissions, Biofuels