American Journal of Applied Sciences

Combustion, Performance and Emission Characteristics of Diesel Engine with Neem Oil Methyl Ester and its Diesel Blends

L. Prabhu, S. Sathish Kumar, M. Prabhahar and K. Rajan

DOI : 10.3844/ajassp.2013.810.818

American Journal of Applied Sciences

Volume 10, Issue 8

Pages 810-818


Biodiesel, an alternative fuel is derived from the fats of animals and plants. As energy demands increase and fossil fuels are limited, research is directed towards alternative renewable fuels. The main advantages of using this alternative fuel are its renewability, biodegradability and better quality of exhaust gases. It is technically competitive and environmentally friendly alternative to conventional petro-diesel fuel for use in Compression Ignition (CI) engines. The use of biodiesel reduces the dependence on imported fossil fuels which continue to decrease in availability and affordability. An experimental investigation has been carried out to evaluate the combustion, performance and emission characteristics of a diesel engine with the effect of using neem oil methyl ester and its diesel blends at different loads. The results showed that maximum cylinder pressure and maximum rate of heat release increased with the increase in bio diesel blends. The carbon monoxide (CO) and smoke emissions were found significantly lower when operating on biodiesel-diesel blends, but Nitrogen Oxide (NOx) emissions are found to be higher at full load.


© 2013 L. Prabhu, S. Sathish Kumar, M. Prabhahar and K. Rajan. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.