THERMAL SCIENCE

International Scientific Journal

PERFORMANCE TEST AND EMISSION CHARACTERISTICS OF DIESEL FUEL BLENDED WITH N-HEXANOL

ABSTRACT
The interest of using alternative fuels in Diesel engines has been accelerated exponentially due to a foreseen scarcity in world petroleum reserves and restrictions on exhaust emissions. Alcohol which is bio-based renewable and oxygenated fuel provides a suitable alternate fuel for internal combustion engines. In this regard, exploration of potential for higher alcohols in automotive application is needed. Long chain alcohols such as pentanol and hexanol despite their analogous properties have rarely been inspected. The n-hexanol, the longer chain alcohol is used to be fueled with diesel. These oxygenated additives allow the fuel to increase combustion efficiency due to the presence of oxygen. In the present investigation, two blends of hexanol and diesel were prepared. All the blends were found to be homogenous and stable. The brake thermal efficiency for all the blends was observed to be slightly higher in comparison to neat diesel. The maximum brake thermal efficiency was obtained with B20 blend. Similarly, minimum total fuel consumption was obtained for B20 blend while rest of the blend showed a reduction in total fuel consumption. The CO emissions were found to get reduced with increase in hexanol percentage in the blends. The HC emissions were observed to increase as the percentage of hexanol increases on the blend. The NOx emissions increased with increase in engine load for all test fuels. Finally, concluded that a blend of B20% hexanol in diesel will result in better engine performance and emissions of CO2, CO, and NOx.
KEYWORDS
PAPER SUBMITTED: 2019-04-09
PAPER REVISED: 2019-05-11
PAPER ACCEPTED: 2019-06-01
PUBLISHED ONLINE: 2019-11-17
DOI REFERENCE: https://doi.org/10.2298/TSCI190414435D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE 1, PAGES [557 - 564]
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© 2020 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence