摘要：On the face of the upcoming energy crisis, vegetable oils have come up as a promising source of fuel. They are being studied widely because of their abundant availability, renewable nature and better performance when used in engines. Many vegetable oils have been investigated in compression ignition engine by fuel modification or engine modification. The vegetable oils have very high density and viscosity, so we have used the methyl ester of the oil to overcome these problems. Their use in form of methyl esters in non modified engines has given encouraging results. Vegetable oils and their derivatives are attractive as alternative fuels, fuel extenders, and an additive for compression ignition (diesel) engines because they also enhance engine performance. Worldwide there is interest in biodiesel as a renewable transportation fuel and blending agent. Biodiesel has the potential to displace petroleum, lower net global warming gas emissions from the transportation sector and reduce the mass and carcinogenicity of particulate matter emissions.
