Title: The comparative analysis of diesel engine combustion and emission parameters fuelled with palm oil methyl esters and its diesel blends

Authors: G. Lakshmi Narayana Rao, S. Saravanan, P. Selva Ilavarasi

Addresses: Department of Mechanical Engineering, QIS College of Engineering and Technology, Ongole 523272, Andhra Pradesh, India. ' Sri Venkateswara College of Engineering, PB No. 3, Pennalur, Sriperumbudur 602105, Tamil Nadu, India. ' Sri Venkateswara College of Engineering, PB No. 3, Pennalur, Sriperumbudur 602105, Tamil Nadu, India

Abstract: In this work, the combustion and emission characteristics of a direct injection compression ignition engine fuelled with diesel-Palm Oil Methyl Ester (POME) blends are investigated. This study shows that the ignition delay decreases with increase in the POME addition. The maximum rate of pressure rise and maximum rate of heat release decreases with increase in POME addition at all loads. As the percentage of POME in the blend increases, the crank angle at which the maximum rate of heat release takes place advances. The brake thermal efficiency decreases with increase in POME addition. The unburned hydrocarbon, carbon monoxide and soot intensity decreases, while nitrogen oxides (NO_x) increase with increase in POME addition. [Received: April 4, 2008; Accepted: November 24, 2008]

Keywords: POME; palm oil methyl esters; biodiesel; diesel engine combustion; ignition delay; rate of pressure rise; rate of heat release; performance; diesel engine emissions; direct injection compression ignition engine.

DOI: 10.1504/IJOGCT.2009.023631

International Journal of Oil, Gas and Coal Technology, 2009 Vol.2 No.1, pp.70 - 82

Published online: 03 Mar 2009 *

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