Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (02): 147-152.doi: 10.13475/j.fzxb.20181101306

• Apparel Engineering • Previous Articles     Next Articles

Predictions of physiological reaction and skin burn of firefighter exposing to thermal radiation

SU Yun1,2,3, YANG Jie4, LI Rui4, SONG Guowen4, LI Jun1,2,3(), ZHANG Xianghui1,2,3   

  1. 1. Fashion & Art Design, Donghua University, Shanghai 200051, China
    2. Protective Clothing Research Center, Donghua University, Shanghai 200051, China
    3. Key Laboratory of Clothing Design and Technology, Ministry of Education, Donghua University, Shanghai 200051, China
    4. Iowa State University, Iowa 50011, USA
  • Received:2018-11-05 Revised:2018-11-16 Online:2019-02-15 Published:2019-02-01
  • Contact: LI Jun E-mail:lijun@dhu.edu.cn

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Abstract:

In order to improve the evaluation criteria on thermal protective performance of firefighting protective clothing, the prediction model on physiological reaction and skin burn of firefighter exposing to thermal radiation was developed based on mechanisms of heat transfer in clothing and human thermal physiological regulation. The changing trend and prediction deviation of mean skin temperature and core temperature were analyzed by the thermal protective performance tester of clothing. The results demonstrat that the mean skin temperature and core temperature predicted by the model are slightly larger than the values measured by the experiment, but the overall trend presents higher consistence with the experimental results. Additionally, firefighters in the heat exposure subject to threats of both skin burn and heat stress. The skin burn is caused during the exposure while it is more likely to produce heat stress after the end of exposure, which is attributed to lag effect of heat transfer. Therefore, the skin burn and the heat stress should be both used to more precisely characterize and improve the thermal protective performance of firefighting protective clothing.

Key words: physiological reaction, skin burn, thermal protective performance, firefighting protective clothing, thermal radiation

CLC Number: 

  • X924.3

Fig.1

Calculation process of heat transfer model"

Tab. 1

Basic properties of different-layer fabrics"

类型 成分 密度/
(kg·m-3)		 厚度/
mm		 比热/
(J·kg-1·
K-1)		 导热
系数/
(W·m-1·
K-1)
外层 100%Nomex 342 0.6 1 570 0.047
防水透
汽层		 80%Nomex/20%
Kevlar (PTFE镀膜)		 122 0.9 1 160 0.034
隔热层 100%Nomex 123 2.2 1 350 0.035

Fig.2

Thermal protective performance tester"

Fig.3

Comparison of mean skin temperature between experiment and simulant results. (a) Without an air gap; (b) With an air gap"

Fig.4

Comparison of core temperature between experiment and simulated results. (a) Without an air gap; (b) With an air gap"

Fig.5

Comparison of time to skin burn between experimental test and model prediction"

[1] BARR D, GREGSON W, REILLY T. The thermal ergonomics of firefighting reviewed[J]. Applied Ergonomics, 2010,41(1):161-172.
doi: 10.1016/j.apergo.2009.07.001 pmid: 19664755
[2] ROSSI R, INDELICATO E, BOLLI W. Hot steam transfer through heat protective clothing layers[J]. International Journal of Occupational Safety and Ergonomics, 2004,10(3):239-245.
doi: 10.1080/10803548.2004.11076611 pmid: 15377408
[3] SU Yun, LI Jun. Development of a test device to characterize thermal protective performance of fabrics against hot steam and thermal radiation[J]. Measurement Science and Technology, 2016,27(12):125904.
[4] FTAITI F, DUFLOT J C, NICOL C, et al. Tympanic temperature and heart rate changes in firefighters during treadmill runs performed with different fireproof jackets[J]. Ergonomics, 2001,44:502-512.
doi: 10.1080/00140130118503 pmid: 11345493
[5] FONTANA P, SAIANI F, GRÜTTER M, et al. Thermo-physiological impact of different firefighting protective clothing ensembles in a hot environment[J]. Textile Research Journal, 2018,88(7):744-753.
[6] LEE Y M, BARKER R L. Thermal protective performance of heat-resistant fabrics in various high intensity heat exposures[J]. Textile Research Journal, 1987,57(3):123-132.
[7] SONG G. Cothing air gap layers and thermal protective performance in single layer garment[J]. Journal of Industrial Textiles, 2007,36(3):193-205.
[8] TORVI D A, HADJISOPHOCLEUS G V. Research in protective clothing for firefighters: state of the art and future directions[J]. Fire Technology, 1999,35(2):111-130.
[9] STOLWIJK J. A mathematical model of physiological temperature regulation in man[J]. NASA Contractor Report, 1971,DOI: ASA CR-1855.
[10] GAGGE A P. An effective temperature scale based on a simple model of human physiological regulatory res-ponse[J]. Ashrae Trans, 1971,77(1):21-36.
[11] TANABE S, KOBAYASHI K, NAKANO J. Evaluation of thermal comfort using combined multi-node thermoregulation (65MN) and radiation models and computational fluid dynamics (CFD)[J]. Energy & Buildings, 2002,34(6):637-646.
[12] FIALA D, LOMAS K J, STOHRER M. Computer prediction of human thermoregulatory and temperature responses to a wide range of environmental condi-tions[J]. International Journal of Biometeorology, 2001,45(3):143-159.
doi: 10.1007/s004840100099 pmid: 11594634
[13] HUIZENGA C, HUI Z, ARENS E. A model of human physiology and comfort for assessing complex thermal environments[J]. Building & Environment, 2001,36(6):691-699.
[14] TORVI D A, DALE J D. Heat transfer in thin fibrous materials under high heat flux[J]. Fire Technology, 1999,35(3):210-231.
[15] CENGEL Y A, GHAJAR A J. Heat and Mass Transfer: Fundamentals & Applications[M]. New York: McGraw-Hill, 2011: 578-655.
[16] SAWCYN C M J, TORVI D A. Improving heat transfer models of air gaps in bench top tests of thermal protective fabrics[J]. Textile Research Journal, 2009,79(7):632-644.
[17] LAWSON L K, CROWN E M, ACKERMAN M Y, et al. Moisture effects in heat transfer through clothing systems for wildland firefighters[J]. International Journal of Occupational Safety & Ergonomics, 2004,10(3):227-238.
pmid: 15377407
[18] PRASAD K, TWILLEY W H, LAWSON J R. Thermal Performance of fire fighters' protective clothing: numerical study of transient heat and water vapor transfer [C]// US Department of Commerce. NISTIR 6881. Gaithersburg: National Institute of Standards and Technology, 2002: 1-29.
[19] AHMED GHAZY, BERGSTROM D. Numerical simulation of transient heat transfer in a protective clothing system during a flash fire exposure[J]. Numerical Heat Transfer, 2010,58(9):702-724.
[20] WISSLER E H. Whole-body human thermal modeling, an alternative to immersion in cold water and other unpleasant endeavors[J]. Journal of Heat Transfer, 2012.DOI: 10.1115/IHIC14-23340.
doi: 10.1115/1.3451030 pmid: 29042711
[21] PARSONS K. Human Thermal Environments: the Effects of Hot, Moderate, and Cold Environments on Human Health, Comfort, and Performance[M]. New York: CRC Press Inc, 2014: 59-77.
[22] MCLELLAN T M. The importance of aerobic fitness in determining tolerance to uncompensable heat stress[J]. Comparative Biochemistry and Physiology: Part A, Molecular & Integrative Physiology, 2001,128(4):691-700.
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