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Cooling vests with phase change material packs: the effects of temperature gradient, mass, and covering area

Gao, Chuansi LU ; Kuklane, Kalev LU and Holmér, Ingvar LU (2010) In Ergonomics 53(5). p.716-723
Abstract
Phase change material (PCM) absorbs or releases latent heat when it changes phases, making thermal-regulated clothing possible. The objective of this study was to quantify the relationships between PCM cooling rate and temperature gradient, mass, and covering area on a thermal manikin in a climatic chamber. Three melting temperatures (24, 28, 32 °C) of the PCMs, different mass, covering areas, and two manikin temperatures (34 and 38 °C) were used. The results showed that the cooling rate of the PCM vests tested is positively correlated with the temperature gradient between the thermal manikin and the melting temperature of the PCMs. The required temperature gradient is suggested to be greater than 6 °C when PCM vests are used in hot... (More)
Phase change material (PCM) absorbs or releases latent heat when it changes phases, making thermal-regulated clothing possible. The objective of this study was to quantify the relationships between PCM cooling rate and temperature gradient, mass, and covering area on a thermal manikin in a climatic chamber. Three melting temperatures (24, 28, 32 °C) of the PCMs, different mass, covering areas, and two manikin temperatures (34 and 38 °C) were used. The results showed that the cooling rate of the PCM vests tested is positively correlated with the temperature gradient between the thermal manikin and the melting temperature of the PCMs. The required temperature gradient is suggested to be greater than 6 °C when PCM vests are used in hot climates. With the same temperature gradient, the cooling rate is mainly determined by the covering area. The duration of the cooling effect is dependent on PCM mass and the latent heat (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
temperature gradient, phase change material, cooling rate, mass, covering area
in
Ergonomics
volume
53
issue
5
pages
716 - 723
publisher
Taylor & Francis
external identifiers
  • wos:000277507600009
  • scopus:77951747414
ISSN
0014-0139
DOI
10.1080/00140130903581649
language
English
LU publication?
yes
id
b18298ec-8392-4a60-98b6-980235d05384 (old id 1566654)
date added to LUP
2010-05-04 13:07:07
date last changed
2018-06-24 03:37:53
@article{b18298ec-8392-4a60-98b6-980235d05384,
  abstract     = {Phase change material (PCM) absorbs or releases latent heat when it changes phases, making thermal-regulated clothing possible. The objective of this study was to quantify the relationships between PCM cooling rate and temperature gradient, mass, and covering area on a thermal manikin in a climatic chamber. Three melting temperatures (24, 28, 32 °C) of the PCMs, different mass, covering areas, and two manikin temperatures (34 and 38 °C) were used. The results showed that the cooling rate of the PCM vests tested is positively correlated with the temperature gradient between the thermal manikin and the melting temperature of the PCMs. The required temperature gradient is suggested to be greater than 6 °C when PCM vests are used in hot climates. With the same temperature gradient, the cooling rate is mainly determined by the covering area. The duration of the cooling effect is dependent on PCM mass and the latent heat},
  author       = {Gao, Chuansi and Kuklane, Kalev and Holmér, Ingvar},
  issn         = {0014-0139},
  keyword      = {temperature gradient,phase change material,cooling rate,mass,covering area},
  language     = {eng},
  number       = {5},
  pages        = {716--723},
  publisher    = {Taylor & Francis},
  series       = {Ergonomics},
  title        = {Cooling vests with phase change material packs: the effects of temperature gradient, mass, and covering area},
  url          = {http://dx.doi.org/10.1080/00140130903581649},
  volume       = {53},
  year         = {2010},
}