Optimization of biodiesel blend ratio for compression ignition engine

History has witnessed the mad run for gold; now it's time for the world to run mad behind oil. Bio fuels derived from renewable plant sources (tree borne vegetable oil) hold immense potential for meeting world's future energy needs. This paper focuses on selecting the optimum blend ratio of Jatropha based Biodiesel with pure diesel to get the best output characteristics of a compression ignition engine. The Biodiesel, blended in different proportions with pure diesel is subjected to performance tests to evaluate its suitability in a 5HP single cylinder Compression Ignition engine. The data generated are compared with base line data obtained for pure diesel and the optimum blend ratio is selected.