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Common clothing area factor estimation equations are inaccurate for highly insulating (Icl>2 clo) and non-western loose-fitting clothing ensembles

Kuklane, Kalev LU and Toma, Róbert LU (2021) In Industrial Health 59(2). p.107-116
Abstract
The aim of this study was to evaluate the equations for calculating the clothing area factor (fcl) used in the standards based on data sets of clothing ensembles, that are meant to provide thermal comfort over a wide range of climatic conditions from hot summer days to extremely cold winter. Over 10 equations for fcl calculations were selected from the international standards and the literature. At first a theoretical comparison based on a range of insulation values was performed. Then the data sets were used to compare the equations and measurements on real clothing systems. Most of the fcl calculation equations do give reasonably good results for western type and industrial clothing with basic insulation (Icl) up to 1.5 clo. Above the... (More)
The aim of this study was to evaluate the equations for calculating the clothing area factor (fcl) used in the standards based on data sets of clothing ensembles, that are meant to provide thermal comfort over a wide range of climatic conditions from hot summer days to extremely cold winter. Over 10 equations for fcl calculations were selected from the international standards and the literature. At first a theoretical comparison based on a range of insulation values was performed. Then the data sets were used to compare the equations and measurements on real clothing systems. Most of the fcl calculation equations do give reasonably good results for western type and industrial clothing with basic insulation (Icl) up to 1.5 clo. Above the Icl of 2 clo, the error in the calculations based on traditional equations increases considerably and they overestimate fcl. Some new equations were suggested for modern clothing systems. Oppositely, for non-western clothing (for hot climate), the available equations did give good match only for very light clothing sets and commonly underestimated the real fcl. For such sets and and fashion clothes their own equations maybe needed, that count for various design aspects, e.g. fit, draping etc. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Industrial Health
volume
59
issue
2
pages
107 - 116
publisher
National Institute of Occupational Safety and Health, Japan
external identifiers
  • pmid:33361651
  • scopus:85102238610
ISSN
0019-8366
DOI
10.2486/indhealth.2020-0209
project
Translating climate service into personalized adaptation strategies to cope with thermal climate stress
language
English
LU publication?
yes
id
474ae2b2-f88a-47a9-9af9-877d51029a99
date added to LUP
2021-06-01 17:05:58
date last changed
2024-02-28 15:51:58
@article{474ae2b2-f88a-47a9-9af9-877d51029a99,
  abstract     = {{The aim of this study was to evaluate the equations for calculating the clothing area factor (fcl) used in the standards based on data sets of clothing ensembles, that are meant to provide thermal comfort over a wide range of climatic conditions from hot summer days to extremely cold winter. Over 10 equations for fcl calculations were selected from the international standards and the literature. At first a theoretical comparison based on a range of insulation values was performed. Then the data sets were used to compare the equations and measurements on real clothing systems. Most of the fcl calculation equations do give reasonably good results for western type and industrial clothing with basic insulation (Icl) up to 1.5 clo. Above the Icl of 2 clo, the error in the calculations based on traditional equations increases considerably and they overestimate fcl. Some new equations were suggested for modern clothing systems. Oppositely, for non-western clothing (for hot climate), the available equations did give good match only for very light clothing sets and commonly underestimated the real fcl. For such sets and and fashion clothes their own equations maybe needed, that count for various design aspects, e.g. fit, draping etc.}},
  author       = {{Kuklane, Kalev and Toma, Róbert}},
  issn         = {{0019-8366}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{2}},
  pages        = {{107--116}},
  publisher    = {{National Institute of Occupational Safety and Health, Japan}},
  series       = {{Industrial Health}},
  title        = {{Common clothing area factor estimation equations are inaccurate for highly          insulating (<b><i>I</i></b><sub>cl</sub>>2 clo) and non-western          loose-fitting clothing ensembles}},
  url          = {{http://dx.doi.org/10.2486/indhealth.2020-0209}},
  doi          = {{10.2486/indhealth.2020-0209}},
  volume       = {{59}},
  year         = {{2021}},
}