Modeling the performance of a PCM cooling vest considering its side effects

Abstract

Purpose

The purpose of this paper is to identify and evaluate the potential cooling contribution provided by a phase change material cooling vest as part of the total heat exchange mechanism of the body and take in to account the negative side effects of wearing the cooling garments.

Design/methodology/approach

In this study, the three-part system of body-garment-environment has been simulated through the finite element method and the problem of heat exchange between these three parts has been solved with the help of computer modeling.

Findings

The results of this modeling showed that a large percentage of the cooling efficiency of cooling vest was neutralized by the negative effects of the vest that are weight, lack of breathability, and the effects on the thermal conductivity of the skin. Therefore, the net efficiency of the cooling vests resulted in a lower decrease in skin temperature compared to the state that the negative side effects were not included in the model.

Originality/value

Cooling power obtained with the help of cooling garments have been studied in previous studies using either human tests or manikins. But, what has been addressed less in previous studies relates to the negative effects of such equipment on the comfort of body, along with their cooling effect. So it is the first time witch the effect of side effects of such equipments are studied. Also modeling the real performance of cooling garments have not been done yet.

Citation

Yazdi, M.M., Sheikhzadeh, M. and Chavoshi, S.E. (2015), "Modeling the performance of a PCM cooling vest considering its side effects", International Journal of Clothing Science and Technology, Vol. 27 No. 4, pp. 573-586. https://doi.org/10.1108/IJCST-01-2014-0018