An experimental study of combustion, performance, exergy and emission characteristics of a CI engine fueled by Diesel-ethanol-biodiesel blends

Abhishek Paul, Rajsekhar Panua and Durbadal Debroy

Energy, 2017, vol. 141, issue C, 839-852

Abstract: The present work is an attempt to conduct a complete analysis of a CI engine subjected to a number of blends of Diesel-ethanol and Pongamia piñata methyl ester (PPME). In this study, the PPME percentage is fixed at 50% and ethanol percentage is increased from 5% to 20% with intervals of 5%, thus reducing the diesel participation. A comprehensive analysis of performance, exergy, combustion and emission characteristics was carried out, which lead to a conclusion that the D35E15B50 blend with 15% ethanol showed best engine performance characteristics with 21.17% increase in brake thermal efficiency and 4.61% decrease in BSEC at full load. The combustion analysis also revealed increase in cylinder pressure and heat release rate indicating improvement in combustion condition for the above-mentioned blend. The D35E15B50 blend also showed a substantial improvement in unburned hydrocarbon and carbon monoxide emissions but it was penalized with a marginal increase in NOx emission. The exergy analysis showed a 25.64% increase in exergetic efficiency and 22.02% decrease in exergy destruction rate and 21.06% decrease in entropy generation rate at full load condition for D35E15B50 blend. The tradeoff study involving BSEC, NOx emission and sustainability index indicated a higher sustainability prospect for the D35E15B50.

Keywords: Exergy destruction rate; Sustainability index; Entropy diesel-ethanol-biodiesel; Diesel engine (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (19)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:141:y:2017:i:c:p:839-852

DOI: 10.1016/j.energy.2017.09.137

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