Performance Charachterestics of Biodiesel - A Review

In a modern day world alternative source of energy are given importance due to gradual depletion of fossil fuels reserves. biodiesels can be used as an alternative to diesel in CI engines. The use of biodiesel in CI engine results in low CO and HC emissions compared to conventional diesel fuel. The present study covers the various aspects of biodiesels fuel derived from calophyllum inophyllum oil, obtained by transesterification process. Performance of CI engine using neat vegetable oil, blending oil with diesel, methyl ester of oil, blending palm bio-diesel with diesel are measured and compared with diesel. Experiment is conducted to obtain the operating characteristics of the variable compression ratio (VCR) engine run on biodiesl at various compression ratio, and the results are compared with diesel. From the comparison of results, it is inferred that the engine performance is improved with significant reduction in emissions for the chosen biodiesel without any engine modification. The effective compression ratio can be fixed based on the experimental results obtained in the engine since the findings of the present research work infer that the biodiesel used is a promising alternative fuel over diesel.