THERMAL SCIENCE

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Chong-Guang Ren

,

Cheng-Jiao Zhang

INVESTIGATION ON PERFORMANCE OF THREE PERSONAL COOLING SYSTEMS IN MITIGATING HEAT STRAIN BY MEANS OF THERMAL MANIKIN

ABSTRACT
The objective of current study was to examine the effectiveness of three cooling strategies (i. e., electric air fan, evaporative cooling vest, and liquid cooling vest) in mitigating body heat strain in heat wave conditions by means of a Newton-type thermal manikin. A human thermoregulatory model was used to simulate human physiological responses while using the three cooling strategies. Two environmental conditions were selected to simulate heatwave conditions, i. e., 36 °C, 33% relative humidity (hot-dry), 40 °C, 27% relative humidity (extremely hotdry). A metabolic rate of 1.2 MET was selected to simulate resting person or person doing light housework. It was found that the electric air fan had cooling benefit in both environments. In addition, the evaporative cooling vest and liquid cooling vest showed similar effectiveness in mitigating body heat strain in both hot-dry or extremely hot-dry environments. Thus the evaporative cooling vest and liquid cooling vest were recommended under heatwave conditions.
KEYWORDS
Personal cooling, thermal manikin, heat strain, heat wave, heat stress
PAPER SUBMITTED: 2016-06-15
PAPER REVISED: 2016-08-04
PAPER ACCEPTED: 2016-09-04
PUBLISHED ONLINE: 2017-09-09
DOI REFERENCE: https://doi.org/10.2298/TSCI160615070R
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Issue 4, PAGES [1789 - 1795]
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Investigation on performance of three personal cooling systems in mitigating heat strain by means of thermal manikin

© 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