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AuthorItani, Mariam
AuthorOuahrani, Djamel
AuthorGhaddar, Nesreen
AuthorGhali, Kamel
AuthorChakroun, Walid
Available date2021-06-07T09:59:14Z
Publication Date2016
Publication NameBuilding and Environment
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.buildenv.2016.07.018
URIhttp://hdl.handle.net/10576/20547
AbstractThe distribution of phase change material (PCM) packets on a cooling vest worn by active human in hot environments is investigated using an integrated fabric-PCM and bio-heat model. The model considered the effect of added PCM weight and hot environments on the human metabolic rate, and incorporated the effect of condensation to check its occurrence in the vest. The fabric-PCM model predictions of local torso skin temperature were validated experimentally on a thermal manikin operated at constant heat flux mode while its predictions of skin and core temperatures when integrated with the bioheat model were validated with published experimental data on human subjects exercising in hot conditions. The validated model is used in a parametric study to determine the best arrangement of 8 PCM packets distributed on different torso segments to improve sensation and comfort of human performing moderate activity in hot climate. It was found that placing 8 PCM packets on the back resulted in the best overall sensation of 1.38 as compared to 2.69 when no PCM is used using a sensation scale that varies from very cold at ?4 to very hot at +4.
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 Ltd
SubjectForecasting
Heat flux
Hosiery manufacture
Phase change materials
Constant heat flux
Heat and moisture transports
Hot environments
Metabolic rates
Parametric study
Passive cooling
Skin temperatures
Thermal manikin
Climate models
condensation
cooling
heat flux
heat transfer
modeling
moisture transfer
skin
temperature
TitleThe effect of PCM placement on torso cooling vest for an active human in hot environment
TypeArticle
Pagination29-42
Volume Number107
dc.accessType Abstract Only


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