Experimental Investigation of Two Biodiesels (Neem Oil, Mustard Oil) Blended with Diesels as Alternative Fuel for Diesel Engines

To study brings out an experimental of two biodiesels from neem oil and mustard oil they are blended with diesel at various mixing volumetric ratios. The existing studies have revealed the use of vegetable oils for engines as an alternative for Diesel fuel. However, there is a limitation in using straight vegetable oils in diesel engines due to their high viscosity and low volatility. In the present work, neat neem oil and mustard is converted into their respective methyl ester through transesterification process. In order to achieve this, Biodiesel was prepared from the non-edible oil of neem, mustard by transesterification of the oil with methanol in the presence of NaOH as catalyst. The important fuel properties of biodiesel produced from Neem oil and Mustard oil, like viscocity, flash point, fire point, calorific value and emission should be found out to compare with the properties of Indian standard biodiesel for its use. Experiments are conducted using various blends of methyl ester of neem oil and mustard oil with diesel in a single cylinder, four stroke vertical and air cooled Kirloskar diesel engine. The brake thermal efficiency, unburned hydrocarbon and smoke density are observed to be lower in case of neem and mustard biodiesel blends than diesel.