The amount of carbon residue from the hot decomposition of vegetable compounds with higher molecular weight is greater than that of commercial diesel oil. Some of the important fuel properties of jatropha biodiesel and conventional petro-diesel are compiled from the previous works of Graboski and McCormick [10], Ramos et al. [11], Pradeep and Sharma [12], Barnwal and Sharma [13] are presented in the tabular form for
ready reference in table 1 for comparison setup three known diameter (1 inch/ 2.54 cm) orifice meters are installed for measuring the re-circulated exhaust gas flow (orifice 1), ambient air flow (orifice 2) and mixing flow (orifice 3)