Numerical Estimation of the Thermal Response of Thermal Protective Clothing-Air Gap-Human Skin Micro-system 被引量：1

Numerical Estimation of the Thermal Response of Thermal Protective Clothing-Air Gap-Human Skin Micro-system

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摘要 Thermal protective clothing has been recognized as the primary shielding against emergency fire hazard and inflammable gas leakage. Therefore,the thermal response of human covered with thermal protective clothing under high temperature is the key work to investigate the thermal insulation of thermal protective clothing. A coupling model composed of thermal protective clothing,air gap and human skin is established and the temperature of the micro-system is numerically solved via the finite element method( FEM).Especially,the heat transfer of air gap located between clothing and human skin considering conduction and radiation is established while the human skin layers involve the effect of blood perfusion. Then the effect of thermophysical properties( thermal conductivity and volumetric capacity) of fabric and thickness of fabric and air on the thermal response of the micro-system is elucidated and compared.The results indicate that the volumetric heat capacity of fabric is the key parameter to affect the thermal shielding performance of thermal protective clothing,and the thicker fabric thickness and air gap thickness can improve the thermal protective properties of the micro-system. Thermal protective clothing has been recognized as the primary shielding against emergency fire hazard and inflammable gas leakage. Therefore,the thermal response of human covered with thermal protective clothing under high temperature is the key work to investigate the thermal insulation of thermal protective clothing. A coupling model composed of thermal protective clothing,air gap and human skin is established and the temperature of the micro-system is numerically solved via the finite element method（ FEM）.Especially,the heat transfer of air gap located between clothing and human skin considering conduction and radiation is established while the human skin layers involve the effect of blood perfusion. Then the effect of thermophysical properties（ thermal conductivity and volumetric capacity） of fabric and thickness of fabric and air on the thermal response of the micro-system is elucidated and compared.The results indicate that the volumetric heat capacity of fabric is the key parameter to affect the thermal shielding performance of thermal protective clothing,and the thicker fabric thickness and air gap thickness can improve the thermal protective properties of the micro-system.

作者田明伟王祯刘康炜胡馨之朱士凤曲丽君陈韶娟周泉

机构地区 College of Textiles and Clothing Laboratory of New Fiber Materials and Modern Textile Collaborative Innovation Center for Marine Biomass Fibers SINOPEC Safety Engineering Institute Central Laboratory

出处《Journal of Donghua University(English Edition)》 EI CAS 2016年第4期569-573,共5页 东华大学学报（英文版）

基金 National Natural Science Foundations of China(Nos.51306095,51273097,51403112) China Postdoctoral Science Foundations(Nos.2014M561887,2015T80697) Qingdao Postdoctoral Application Research Funded Project,China(No.14-2-4-1-JCH) Qingdao Application Basic Research Funded Project,China(No.15-9-1-41-JCH)

关键词 thermal protective clothing air gap human skin thermal response finite element method(FEM) clothing fabric protective volumetric shielding perfusion insulation conduction elucidated Skin

分类号 TS101.8 [轻工技术与工程—纺织工程]

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