Effects of fabric thickness and material on apparent ‘wet’ conductive thermal resistance of knitted fabric 'skin’ on sweating manikins

Faming Wang, Dandan Lai, Wen Shi, Ming Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

In this study, we performed 252 experiments to investigate the influence of fabric thickness and material on the apparent ‘wet’ conductive (or effective) thermal resistance of the fabric 'skin’ using a ‘Newton’ manikin. Four types of cotton fabric 'skin’ (fabric thickness: 0.38, 0.54, 0.92 and 1.43 mm) and three types of polyester fabric 'skin’ (fabric thickness: 0.41, 0.54 and 1.0 mm) were selected and their ‘wet’ conductive thermal resistance was determined. Empirical equations were also developed for each fabric 'skin’ to predict wet fabric 'skin’ surface temperatures. It was found that both fabric thickness and material significantly affected the apparent ‘wet’ conductive thermal resistance. Clothing total evaporative resistance determined using thin fabric 'skin’ (e.g., CO1, CO2) was normally lower than that determined using thick fabric 'skin’ (e.g., CO4). Besides, synthetic fabric 'skin’ tended to have a larger apparent ‘wet’ conductive thermal resistance than the cotton fabric 'skin’ due to a smaller amount of moisture contained. Hence, there is a great need to standardize the fabric 'skin’ to eliminate the influence of fabric 'skin’ on the measurement of clothing evaporative resistance by means of a sweating manikin.
Original languageEnglish
Pages (from-to)69-76
Number of pages8
JournalJournal of Thermal Biology
Volume70
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • Evaporative resistance
  • Fabric 'skin’
  • Fabric porosity
  • Sweating manikin
  • Thickness
  • ‘wet’ conductive thermal resistance

ASJC Scopus subject areas

  • Physiology
  • Biochemistry
  • Agricultural and Biological Sciences(all)
  • Developmental Biology

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