Title: Performance of a C.I. engine with energy and exergy analysis fuelled with neem oil methyl ester

Authors: Nabnit Panigrahi; Mahendra Kumar Mohanty; Ramesh Chandra Mohanty; Sruti Ranjan Mishra

Addresses: Mechanical Engineering Department, Gandhi Institute for Technology, Bhubaneswar, Odisha, India ' Department of Farm Machinery and Power College of Agricultural Engineering and Technology, OUAT, Bhubaneswar, Odisha, India ' Department of Mechanical Engineering, Centurion University of Technology and Management, Bhubaneswar, Odisha, India ' Department of Chemistry, C.V. Raman College of Engineering, Bhubaneswar, Odisha, India

Abstract: In this paper, energy and exergy analyses have been performed on a 3.5 kW diesel engine for diesel fuel and NB20 (20% blends of neem oil methyl ester) on the basis of experimental data of the engine. The exhaust gas energy loss of diesel is higher than NB20. However, NB20 biodiesel yields a higher rate of heat transfer than diesel. Based on input energy value, less exhaust loss and higher heat loss percentages are obtained for both the tested fuels. The exergy destruction of diesel is higher than that of NB20 whereas the exergy heat loss of NB20 is more than that of diesel. Higher percentages of exergy destruction and less percentage of exergy heat loss are observed for both the tested fuels. Regarding efficiency associated with thermal, combustion and exergetic, NB20 performed well. Moreover, NB20 biodiesel shows similar trends of energetic and exergetic performance with diesel fuel.

Keywords: energy analysis; exergy analysis; neem oil methyl ester; compression ignition engines; diesel engines; biofuels; exhaust gas; biodiesel; heat transfer; exergy destruction.

DOI: 10.1504/IJRET.2016.077743

International Journal of Renewable Energy Technology, 2016 Vol.7 No.3, pp.264 - 287

Received: 18 Mar 2015
Accepted: 23 Aug 2015

Published online: 14 Jul 2016 *

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