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Journal of Engineering
Volume 2013, Article ID 915357, 8 pages
Research Article

Optimization of Performance and Emission Characteristics of Diesel Engine with Biodiesel Using Grey-Taguchi Method

Department of Mechanical Engineering, Jadavpur University, Kolkata, West Bengal 700032, India

Received 18 December 2012; Revised 18 January 2013; Accepted 29 January 2013

Academic Editor: Chin-Ping Tan

Copyright © 2013 Goutam Pohit and Dipten Misra. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Engine performances and emission characteristics of Karanja oil methyl ester blended with diesel were carried out on a variable compression diesel engine. In order to search for the optimal process response through a limited number of experiment runs, application of Taguchi method in combination with grey relational analysis had been applied for solving a multiple response optimization problem. Using grey relational grade and signal-to-noise ratio as a performance index, a particular combination of input parameters was predicted so as to achieve optimum response characteristics. It was observed that a blend of fifty percent was most suitable for use in a diesel engine without significantly affecting the engine performance and emissions characteristics.