Effects of engine cooling water temperature on performance and emission characteristics of a CI engine operated with biofuel blend


The temperature of the coolant is known to have significant influence on engine performance and emissions. Whereas existing literature describes the effects of coolant temperature in engines using fossil derived fuels, very few studies have investigated these effects when biofuel is used. In this study, Jatropha oil was blended separately with ethanol and butanol. It was found that the 80% jatropha oil + 20% butanol blend was the most suitable alternative, as its properties were closest to that of fossil diesel. The coolant temperature was varied between 50°C and 95°C. The combustion process enhanced for both diesel and biofuel blend, when the coolant temperature was increased. The carbon dioxide emissions for both diesel and biofuel blend were observed to increase with temperature. The carbon monoxide, oxygen and lambda values were observed to decrease with temperature. When the engine was operated using diesel, nitrogen oxides emissions correlated in an opposite manner to smoke opacity; however, nitrogen oxides emissions and smoke opacity correlated in an identical manner for biofuel blend. Brake specific fuel consumption was observed to decrease as the temperature was increased and was higher on average when the biofuel was used. The study concludes that both biofuel blend and fossil diesel produced identical correlations between coolant temperature and engine performance. The trends of nitrogen oxides and smoke emissions with cooling temperatures were not identical to fossil diesel when biofuel blend was used in the engine.

Publication DOI: https://doi.org/10.13044/j.sdewes.d5.0132
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Sustainable environment research group
College of Engineering & Physical Sciences > Aston Institute of Materials Research (AIMR)
Additional Information: Licensed under a Creative Commons Attribution 3.0 Unported License. Users are granted the right to copy, use, distribute, transmit and display the Work publicly, and to create and distribute derivative works in any medium and for any responsible purpose, as long as the Author receives credit as author, and the Journal in which the Article has been published is cited as the source of first publication of the Work.
Uncontrolled Keywords: biofuel,compression ignition engine,coolant temperature ,emission,performance,Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Environmental Science (miscellaneous),Water Science and Technology
Publication ISSN: 1848-9257
Last Modified: 06 May 2024 07:16
Date Deposited: 19 Aug 2019 10:09
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2017-01
Published Online Date: 2016-11-30
Accepted Date: 2016-08-05
Authors: Hossain, Abul (ORCID Profile 0000-0002-8713-8058)
Smith, David
Davies, Philip (ORCID Profile 0000-0003-4783-1234)



Version: Published Version

License: Creative Commons Attribution

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