Simultaneous Reduction of Smoke and NO Emission Using Lower Order Alcohols in a Jatropha Methyl Ester Fuelled Compression Ignition Engine
2019
Venkatesan Rajasekar, Varuvel Edwin Geo, Leenus Jesu Martin and Beddhannan Nagalingam
The objective of this work is to experimentally study the consequence of blending lower order alcohol (methanol and ethanol) with jatropha oil methyl ester (JOME) in a single cylinder, four stroke and watercooled CI engine. 70% JOME blended with 30% methanol (J70M30) and 70% JOME blended with 30% ethanol (J70E30) are the two blends prepared to operate the engine. Experiments were conducted from 0 to 100% load at a fixed engine speed of 1500 rpm and the results were compared with base fuels. Due to the inferior physical properties of JOME, brake thermal efficiency (BTE) decreases compared to diesel at maximum load. Also, NO emissions increased by 4% and smoke opacity decreases by 10% while operating the engine with JOME compared to diesel. Simultaneous reduction of NO and smoke is achieved by blending lower order alcohol with JOME and a slight improvement in BTE is observed.
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