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Modeling and Prediction of Thermophysiological Comfort Properties of a Single Layer Fabric System Using Single Sector Sweating Torso Gholamreza, Farzan; Su, Yang; Li, Ruoyao; Nadaraja, Anupama Vijaya; Gathercole, Robert; Li, Ri; Dolez, Patricia I.; Golovin, Kevin; Rossi, René M.; Annaheim, Simon; et al.

Abstract

Thermophysiological comfort is known to play a primary role in maintaining thermal balance, which corresponds to a person’s satisfaction with their immediate thermal environment. Among the existing test methods, sweating torsos are one of the best tools to provide a combined measurement of heat and moisture transfer using non-isothermal conditions. This study presents a preliminary numerical model of a single sector sweating torso to predict the thermophysiological comfort properties of fabric systems. The model has been developed using COMSOL Multiphysics, based on the ISO 18640-1 standard test method and a single layer fabric system used in sportswear. A good agreement was observed between the experimental and numeral results over different exposure phases simulated by the torso test (R2 = 0.72 to 0.99). The model enables a systematic investigation of the effect of fabric properties (thickness, porosity, thermal resistance, and evaporative resistance), environmental conditions (relative humidity, air and radiant temperature, and wind speed), and physiological parameters (sweating rate) to gain an enhanced understanding of the thermophysiological comfort properties of the fabric system.

Item Metadata

Title
Modeling and Prediction of Thermophysiological Comfort Properties of a Single Layer Fabric System Using Single Sector Sweating Torso
Creator
Gholamreza, Farzan; Su, Yang; Li, Ruoyao; Nadaraja, Anupama Vijaya; Gathercole, Robert; Li, Ri; Dolez, Patricia I.; Golovin, Kevin; Rossi, René M.; Annaheim, Simon; Milani, Abbas S.
Publisher
Multidisciplinary Digital Publishing Institute
Date Issued
2022-08-22
Description
Thermophysiological comfort is known to play a primary role in maintaining thermal balance, which corresponds to a person’s satisfaction with their immediate thermal environment. Among the existing test methods, sweating torsos are one of the best tools to provide a combined measurement of heat and moisture transfer using non-isothermal conditions. This study presents a preliminary numerical model of a single sector sweating torso to predict the thermophysiological comfort properties of fabric systems. The model has been developed using COMSOL Multiphysics, based on the ISO 18640-1 standard test method and a single layer fabric system used in sportswear. A good agreement was observed between the experimental and numeral results over different exposure phases simulated by the torso test (R2 = 0.72 to 0.99). The model enables a systematic investigation of the effect of fabric properties (thickness, porosity, thermal resistance, and evaporative resistance), environmental conditions (relative humidity, air and radiant temperature, and wind speed), and physiological parameters (sweating rate) to gain an enhanced understanding of the thermophysiological comfort properties of the fabric system.
Subject
thermophysiological comfort; computational model; single layer fabric; COMSOL Multiphysics
Genre
Article
Type
Text
Language
eng
Date Available
2023-06-26
Provider
Vancouver : University of British Columbia Library
Rights
CC BY 4.0
DOI
10.14288/1.0433739
URI
http://hdl.handle.net/2429/85158
Affiliation
Applied Science, Faculty of; Non UBC; Engineering, School of (Okanagan)
Citation
Materials 15 (16): 5786 (2022)
Publisher DOI
10.3390/ma15165786
Peer Review Status
Reviewed
Scholarly Level
Faculty; Researcher
Rights URI
https://creativecommons.org/licenses/by/4.0/
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CC BY 4.0