Comparative Study Of Non Edible Bio Diesel Fuel

Abstract

Biodiesel derived from nonedible feed stocks such as Jatropha, neem and hempare reported to be feasible choices for many countries including India. The main advantages of using this alternative fuel are its renewability, biodegradability and lesser exhaust emission. It is environmentally friendly alternative to conventional petro diesel fuel for use inexisting CI engines. The use of biodiesel reduces the demand of importing fossil fuels which have become costlier day by day. The non-edible Jatropha oils for biodiesel production widely used, because the properties of Jatropha biodiesel favorably with the characteristics required for CI fuel.The experimental work presented in this thesis is divided into three main parts. In the first part the properties of the three biodiesel (Jatropha, neem and hemp) are evaluated and compared with the petro diesel.The calorific values are lesser than the petro diesel fuel. In the second part the evaluating the engine performance of non-edible oil at various compression ratio and find the optimum compression ratio, which is to be find 17.5:1. An experimental investigation has been carried out to evaluate the performance and emission characteristics of a diesel engine fuelled with Jatropha, neem and hemp biodiesel and their blends (10%, 15% and 20%). The performance parameters analyzed include thermal efficiency, brake specific fuel consumption and exhaust gas temperature whereas exhaust emission include oxides of nitrogen, HC, CO2 and CO. The experimental results are comparing with each other and also with baseline data of diesel fuel. The objective of the present study was to find the effect of different fuel and their blends on the performance and emission of CI engine. The study also shows the comparative study of different fuel with diesel.