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Personal cooling with phase change materials to improve thermal comfort from a heat wave perspective

Gao, Chuansi LU ; Kuklane, Kalev LU ; Wang, Faming LU and Holmér, Ingvar LU (2012) In Indoor Air 22(6). p.523-530
Abstract (Swedish)
Abstract in Undetermined

Abstract The impact of heat waves arising from climate change on human health is predicted to be profound. It is important to be prepared with various preventive measures for such impacts on society. The objective of this study was to investigate whether personal cooling with phase change materials (PCM) could improve thermal comfort in simulated office work at 34°C. Cooling vests with PCM were measured on a thermal manikin before studies on human subjects. Eight male subjects participated in the study in a climatic chamber (T(a) = 34°C, RH = 60%, and ν(a) = 0.4 m/s). Results showed that the cooling effect on the manikin torso was 29.1 W/m(2) in the isothermal condition. The results on the manikin... (More)
Abstract in Undetermined

Abstract The impact of heat waves arising from climate change on human health is predicted to be profound. It is important to be prepared with various preventive measures for such impacts on society. The objective of this study was to investigate whether personal cooling with phase change materials (PCM) could improve thermal comfort in simulated office work at 34°C. Cooling vests with PCM were measured on a thermal manikin before studies on human subjects. Eight male subjects participated in the study in a climatic chamber (T(a) = 34°C, RH = 60%, and ν(a) = 0.4 m/s). Results showed that the cooling effect on the manikin torso was 29.1 W/m(2) in the isothermal condition. The results on the manikin using a constant heating power mode reflect directly the local cooling effect on subjects. The results on the subjects showed that the torso skin temperature decreased by about 2-3°C and remained at 33.3°C. Both whole body and torso thermal sensations were improved. The findings indicate that the personal cooling with PCM can be used as an option to improve thermal comfort for office workers without air conditioning and may be used for vulnerable groups, such as elderly people, when confronted with heat waves. PRACTICAL IMPLICATIONS: Wearable personal cooling integrated with phase change materials has the advantage of cooling human body's micro-environment in contrast to stationary personalized cooling and entire room or building cooling, thus providing greater mobility and helping to save energy. In places where air conditioning is not usually used, this personal cooling method can be used as a preventive measure when confronted with heat waves for office workers, vulnerable populations such as the elderly and disabled people, people with chronic diseases, and for use at home. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
heat wave, intelligent clothing, skin temperature, thermal comfort, phase change material, Personal cooling
in
Indoor Air
volume
22
issue
6
pages
523 - 530
publisher
Wiley-Blackwell
external identifiers
  • wos:000310800800010
  • scopus:84868702667
ISSN
0905-6947
DOI
10.1111/j.1600-0668.2012.00778.x
language
English
LU publication?
yes
id
bbaf5a7c-37c0-4877-9722-944c3f5f7bb5 (old id 2363933)
date added to LUP
2012-02-24 14:02:40
date last changed
2017-11-05 04:15:24
@article{bbaf5a7c-37c0-4877-9722-944c3f5f7bb5,
  abstract     = {<b>Abstract in Undetermined</b><br/><br>
Abstract The impact of heat waves arising from climate change on human health is predicted to be profound. It is important to be prepared with various preventive measures for such impacts on society. The objective of this study was to investigate whether personal cooling with phase change materials (PCM) could improve thermal comfort in simulated office work at 34°C. Cooling vests with PCM were measured on a thermal manikin before studies on human subjects. Eight male subjects participated in the study in a climatic chamber (T(a) = 34°C, RH = 60%, and ν(a) = 0.4 m/s). Results showed that the cooling effect on the manikin torso was 29.1 W/m(2) in the isothermal condition. The results on the manikin using a constant heating power mode reflect directly the local cooling effect on subjects. The results on the subjects showed that the torso skin temperature decreased by about 2-3°C and remained at 33.3°C. Both whole body and torso thermal sensations were improved. The findings indicate that the personal cooling with PCM can be used as an option to improve thermal comfort for office workers without air conditioning and may be used for vulnerable groups, such as elderly people, when confronted with heat waves. PRACTICAL IMPLICATIONS: Wearable personal cooling integrated with phase change materials has the advantage of cooling human body's micro-environment in contrast to stationary personalized cooling and entire room or building cooling, thus providing greater mobility and helping to save energy. In places where air conditioning is not usually used, this personal cooling method can be used as a preventive measure when confronted with heat waves for office workers, vulnerable populations such as the elderly and disabled people, people with chronic diseases, and for use at home.},
  author       = {Gao, Chuansi and Kuklane, Kalev and Wang, Faming and Holmér, Ingvar},
  issn         = {0905-6947},
  keyword      = {heat wave,intelligent clothing,skin temperature,thermal comfort,phase change material,Personal cooling},
  language     = {eng},
  number       = {6},
  pages        = {523--530},
  publisher    = {Wiley-Blackwell},
  series       = {Indoor Air},
  title        = {Personal cooling with phase change materials to improve thermal comfort from a heat wave perspective},
  url          = {http://dx.doi.org/10.1111/j.1600-0668.2012.00778.x},
  volume       = {22},
  year         = {2012},
}