Development of a numerical model to predict physiological strain of firefighter in fire hazard

Scientific Reports
Yun SuJun Li

Abstract

This paper aims to develop a numerical model to predict heat stress of firefighter under low-level thermal radiation. The model integrated a modified multi-layer clothing model with a human thermoregulation model. We took the coupled radiative and conductive heat transfer in the clothing, the size-dependent heat transfer in the air gaps, and the controlling active and controlled passive thermal regulation in human body into consideration. The predicted core temperature and mean skin temperature from the model showed a good agreement with the experimental results. Parametric study was conducted and the result demonstrated that the radiative intensity had a significant influence on the physiological heat strain. The existence of air gap showed positive effect on the physiological heat strain when air gap size is small. However, when the size of air gap exceeds 6 mm, a different trend was observed due to the occurrence of natural convection. Additionally, the time length for the existence of the physiological heat strain was greater than the existence of the skin burn under various heat exposures. The findings obtained in this study provide a better understanding of the physiological strain of firefighter and shed light on textile...Continue Reading

References

Feb 1, 1988·The Australian and New Zealand Journal of Surgery·G M ClarkY C Tong
Jan 1, 1980·Annals of the New York Academy of Sciences·J A Stolwijk
Apr 3, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·T M McLellan
Sep 21, 2004·International Journal of Occupational Safety and Ergonomics : JOSE·Lelia K LawsonJ Douglas Dale
Aug 1, 1948·Journal of Applied Physiology·H H PENNES
Aug 12, 2009·Applied Ergonomics·David BarrThomas Reilly
Apr 20, 2011·International Journal of Biometeorology·Dusan FialaGerd Jendritzky
Mar 1, 2013·Journal of Biomechanical Engineering·Daniel W HensleyKenneth R Diller
Dec 2, 2014·Journal of Thermal Biology·Jie YangBaoting Zhang

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