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Transient Heat Flux Evaluation of Underwear for Protective Clothing using Sweating Manikin

발한 마네킹을 이용한 보호복용 언더웨어의 동적(Transient) 열류량 평가

  • Park, Hye-Jun (Research Institute of Human Ecology, Chungnam National University) ;
  • Kim, Hyun-Jung (Dept. of Clothing & Textiles, Chungnam National University) ;
  • Hong, Kyung-Hi (Dept. of Clothing & Textiles, Chungnam National University)
  • 박혜준 (충남대학교 생활과학연구소) ;
  • 김현정 (충남대학교 의류학과) ;
  • 홍경희 (충남대학교 의류학과)
  • Published : 2008.01.31

Abstract

Transient thermal response of five types of underwear(cotton jersey, wool jersey, nylon jersey, cotton mesh and polyester mesh) for a protective coverall is evaluated using a sweating thermal manikin. Experimental protocol for transient thermal response of the sweating thermal manikin was also proposed. As results, it was found that steady state thermal response from sweating thermal manikin was not sensitive enough to evaluate thermal comfort of the experimental garments. However, when half time is used as an index of the heat flux change in transient thermal response, difference was found among underwear materials. Half time of cotton was the shortest and heat transfer of cotton was the fastest followed by polyester mesh, cotton jersey, nylon jersey and wool jersey. Dynamic thermal response of wool underwear was quite different from that of cotton underwear. Wool shows quite less heat flow at the initial stage, however, moisture permeability of wool was higher than cotton at the later stage. It was difficult to distinguish surface temperature difference visually using thermogram taken right before the completion of dry and wet test in steady state thermal response.

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