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Development and validity of a universal empirical equation to predict skin surface temperature on thermal manikins

Wang, Faming LU ; Kuklane, Kalev LU ; Gao, Chuansi LU and Holmér, Ingvar LU (2010) In Journal of Thermal Biology 35(4). p.197-203
Abstract
Clothing evaporative resistance is an important input in thermal comfort models. Thermal manikin tests give the most accurate and reliable evaporative resistance values for clothing. The calculation methods of clothing evaporative resistance require the sweating skin surface temperature (i.e., options 1 and 2). However, prevailing calculation methods of clothing evaporative resistance (i.e., options 3 and 4) are based on the controlled nude manikin surface temperature due to the sensory measurement difficulty. In order to overcome the difficulty of attaching temperature sensors to the wet skin surface and to enhance the calculation accuracy on evaporative resistance, we conducted an intensive skin study on a thermal manikin ‘Tore’. The... (More)
Clothing evaporative resistance is an important input in thermal comfort models. Thermal manikin tests give the most accurate and reliable evaporative resistance values for clothing. The calculation methods of clothing evaporative resistance require the sweating skin surface temperature (i.e., options 1 and 2). However, prevailing calculation methods of clothing evaporative resistance (i.e., options 3 and 4) are based on the controlled nude manikin surface temperature due to the sensory measurement difficulty. In order to overcome the difficulty of attaching temperature sensors to the wet skin surface and to enhance the calculation accuracy on evaporative resistance, we conducted an intensive skin study on a thermal manikin ‘Tore’. The relationship among the nude manikin surface temperature, the total heat loss and the wet skin surface temperature in three ambient conditions was investigated. A universal empirical equation to predict the wet skin surface temperature of a sweating thermal manikin was developed and validated on the manikin dressed in six different clothing ensembles. The skin surface temperature prediction equation in an ambient temperature range between 25.0 and 34.0 °C is Tsk=34.0–0.0132HL. It is demonstrated that the universal empirical equation is a good alternative to predicting the wet skin surface temperature and facilitates calculating the evaporative resistance of permeable clothing ensembles. Further studies on the validation of the empirical equation on different thermal manikins are needed however. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to specialist publication or newspaper
publication status
published
subject
keywords
Heat loss, Skin temperature, Empirical equation, Clothing ensemble, Thermal manikin
categories
Popular Science
in
Journal of Thermal Biology
volume
35
issue
4
pages
197 - 203
publisher
Elsevier
external identifiers
  • wos:000278652900006
  • scopus:77952891321
ISSN
0306-4565
DOI
10.1016/j.jtherbio.2010.03.004
language
English
LU publication?
yes
id
e4439087-7276-4ad4-814d-1d5f78babc5a (old id 1628322)
alternative location
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T94-4YT05CR-1&_user=745831&_coverDate=05%2F31%2F2010&_rdoc=7&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235104%232010%23999649995%231997769%23FLA%23display%23Volume)&_cdi=5104&_sort=d&_docanchor=&_ct=7&_acct=C000041498&_version=1&_urlVersion=0&_userid=745831&md5=f6081d00bf94c7dc9d9d4747fdec6288
date added to LUP
2010-07-20 09:15:08
date last changed
2018-05-29 09:33:02
@misc{e4439087-7276-4ad4-814d-1d5f78babc5a,
  abstract     = {Clothing evaporative resistance is an important input in thermal comfort models. Thermal manikin tests give the most accurate and reliable evaporative resistance values for clothing. The calculation methods of clothing evaporative resistance require the sweating skin surface temperature (i.e., options 1 and 2). However, prevailing calculation methods of clothing evaporative resistance (i.e., options 3 and 4) are based on the controlled nude manikin surface temperature due to the sensory measurement difficulty. In order to overcome the difficulty of attaching temperature sensors to the wet skin surface and to enhance the calculation accuracy on evaporative resistance, we conducted an intensive skin study on a thermal manikin ‘Tore’. The relationship among the nude manikin surface temperature, the total heat loss and the wet skin surface temperature in three ambient conditions was investigated. A universal empirical equation to predict the wet skin surface temperature of a sweating thermal manikin was developed and validated on the manikin dressed in six different clothing ensembles. The skin surface temperature prediction equation in an ambient temperature range between 25.0 and 34.0 °C is Tsk=34.0–0.0132HL. It is demonstrated that the universal empirical equation is a good alternative to predicting the wet skin surface temperature and facilitates calculating the evaporative resistance of permeable clothing ensembles. Further studies on the validation of the empirical equation on different thermal manikins are needed however.},
  author       = {Wang, Faming and Kuklane, Kalev and Gao, Chuansi and Holmér, Ingvar},
  issn         = {0306-4565},
  keyword      = {Heat loss,Skin temperature,Empirical equation,Clothing ensemble,Thermal manikin},
  language     = {eng},
  number       = {4},
  pages        = {197--203},
  publisher    = {Elsevier},
  series       = {Journal of Thermal Biology},
  title        = {Development and validity of a universal empirical equation to predict skin surface temperature on thermal manikins},
  url          = {http://dx.doi.org/10.1016/j.jtherbio.2010.03.004},
  volume       = {35},
  year         = {2010},
}