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AuthorHamdan, Haneen
AuthorGhaddar, Nesreen
AuthorOuahrani, Djamel
AuthorGhali, Kamel
AuthorItani, M.
Available date2021-03-31T08:18:06Z
Publication Date2016
Publication NameInternational Journal of Thermal Sciences
ResourceScopus
ISSN12900729
URIhttp://dx.doi.org/10.1016/j.ijthermalsci.2015.12.001
URIhttp://hdl.handle.net/10576/18041
AbstractA cooling vest containing phase change materials (PCM) can help in maintaining the skin temperature of the covered parts at a comfortable level. A transient mathematical model of heat and mass transfer through clothing layers containing PCM packets was developed. Two experiments were performed on a clothed heated cylinder in controlled environment to validate the model using two PCMs at different melting temperatures. Good agreement was found between model-predicted and measured temperatures of the microclimate air between the cylinder and the PCM.The validated fabric-PCM model was then integrated with a segmental bio-heat model to provide realistic skin boundary conditions. The predicted core and mean skin temperatures agreed well with published experimental data of a human wearing a PCM-vest in hot environment.The validated integrated bio-heat and fabric-PCM models were used to study the effect of the melting temperature of the PCM and its mass on the vest performance. It was found that a lower melting temperature must be used when a fast cooling effect is desirable. Moreover, it was found that at fixed melting temperature increasing the PCM mass increased the cooling duration.
SponsorThe authors would like to acknowledge the financial support of the Qatar National Research Funds (a member of the Qatar Foundation), Grant # NPRP 7-486-2-185 , State of Qatar.
Languageen
PublisherElsevier Masson s.r.l.
SubjectBio-heat modeling
Heat transport in clothing
Human body passive cooling
Phase change material
TitlePCM cooling vest for improving thermal comfort in hot environment
TypeArticle
Pagination154-167
Volume Number102
dc.accessType Abstract Only


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