THERMAL SCIENCE

International Scientific Journal

Rashmi Rekha Sahoo

,

Pradyumna Ghosh

,

Jahar Sarkar

PERFORMANCE COMPARISON OF VARIOUS COOLANTS FOR LOUVERED FIN TUBE AUTOMOTIVE RADIATOR

ABSTRACT
In the present study, screening of various coolants (water, ethylene glycol, propylene glycol, brines, nanofluid, and sugarcane juice) for louvered fin automotive radiator has been done based on different energetic and exergetic performance parameters. Effects on radiator size, weight and cost as well as engine efficiency and fuel consumption are discussed as well. Results show that the sugarcane juice seems to be slightly better in terms of both heat transfer and pumping power than water and nanofluid, whereas significantly better than ethylene glycol and propylene glycol. For same heat transfer capacity, the pumping power requirement is minimum and vice-versa with sugarcane juice, followed by nanofluid, water, EG and PG. Study on brines shows an opportunity to use water+25% PG based nanofluids for improvement of performance as well as operating range. Replacement of water or brines by using sugarcane juice and water or wa-ter+25% PG based nanofluids will reduce the radiator size, weight and pumping power, which may lead to increase in compactness and overall engine efficiency or reduction in radiator cost and engine fuel consumption. In overall, both sugarcane juice and nanofluid seem to be potential substitutes of water. However, both have some challenges such as long term stability for practical use.
KEYWORDS
louvered fin tube radiator, sugarcane juice, nanofluid, performance, size, cost
PAPER SUBMITTED: 2015-02-19
PAPER REVISED: 2015-12-17
PAPER ACCEPTED: 2015-12-20
PUBLISHED ONLINE: 2016-01-01
DOI REFERENCE: https://doi.org/10.2298/TSCI150219213S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Issue 6, PAGES [2871 - 2881]
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Performance comparison of various coolants for louvered fin tube automotive radiator

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, 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