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Cooling garments against environmental heat conditions in occupational fields : measurements of the effect of a ventilation jacket on the total thermal insulation

Del Ferraro, Simona ; Falcone, Tiziana ; Morabito, Marco ; Messeri, Alessandro ; Bonafede, Michela ; Marinaccio, Alessandro ; Gao, Chuansi LU and Molinaro, Vincenzo (2021) In International Journal of Industrial Ergonomics 86.
Abstract

Personal cooling garments (PCGs) can represent an adaptation solution to counteract heat strain and to improve worker's health and productivity (especially for some outdoor work activities as in agriculture and in the construction industry). The cooling effect of a ventilation jacket was preliminarily investigated carrying out “dry” tests in a climatic chamber on a thermal manikin. A standardized condition with air temperature, ta = 22.4 °C, three different adjustments of the fan velocity (vf= 0, vf = 2 and vf = 4), and three different ensembles (the single jacket, a work ensemble and a combination of both) were considered. Results showed significant increases in dry heat losses (through convection) for... (More)

Personal cooling garments (PCGs) can represent an adaptation solution to counteract heat strain and to improve worker's health and productivity (especially for some outdoor work activities as in agriculture and in the construction industry). The cooling effect of a ventilation jacket was preliminarily investigated carrying out “dry” tests in a climatic chamber on a thermal manikin. A standardized condition with air temperature, ta = 22.4 °C, three different adjustments of the fan velocity (vf= 0, vf = 2 and vf = 4), and three different ensembles (the single jacket, a work ensemble and a combination of both) were considered. Results showed significant increases in dry heat losses (through convection) for the trunk thermal zones, higher when the fans were on, for all the ensembles considered. Percent changes greatly exceeded 100 % for the thermal zones close to the fans. The air ventilation determined significant decreases of the total thermal insulation (IT) values (up to 35 %) compared to the fans-off condition, confirming and quantifying the cooling effect of the ventilation jacket.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Air ventilation, Cooling garments, Cooling performance, Hot environment, Occupational heat stress, Thermal manikin
in
International Journal of Industrial Ergonomics
volume
86
article number
103230
publisher
Elsevier
external identifiers
  • scopus:85117361671
ISSN
0169-8141
DOI
10.1016/j.ergon.2021.103230
language
English
LU publication?
yes
additional info
Funding Information: This work was partially founded by INAIL, Research Plan 2019?2021, Project P1O4, BRIC n. 6. Publisher Copyright: © 2021 Elsevier B.V.
id
8fd60f1b-f1cf-4470-9b5c-8160475d066d
date added to LUP
2021-10-29 17:39:51
date last changed
2022-04-27 05:16:14
@article{8fd60f1b-f1cf-4470-9b5c-8160475d066d,
  abstract     = {{<p>Personal cooling garments (PCGs) can represent an adaptation solution to counteract heat strain and to improve worker's health and productivity (especially for some outdoor work activities as in agriculture and in the construction industry). The cooling effect of a ventilation jacket was preliminarily investigated carrying out “dry” tests in a climatic chamber on a thermal manikin. A standardized condition with air temperature, ta = 22.4 °C, three different adjustments of the fan velocity (v<sub>f</sub>= 0, v<sub>f</sub> = 2 and v<sub>f</sub> = 4), and three different ensembles (the single jacket, a work ensemble and a combination of both) were considered. Results showed significant increases in dry heat losses (through convection) for the trunk thermal zones, higher when the fans were on, for all the ensembles considered. Percent changes greatly exceeded 100 % for the thermal zones close to the fans. The air ventilation determined significant decreases of the total thermal insulation (I<sub>T</sub>) values (up to 35 %) compared to the fans-off condition, confirming and quantifying the cooling effect of the ventilation jacket.</p>}},
  author       = {{Del Ferraro, Simona and Falcone, Tiziana and Morabito, Marco and Messeri, Alessandro and Bonafede, Michela and Marinaccio, Alessandro and Gao, Chuansi and Molinaro, Vincenzo}},
  issn         = {{0169-8141}},
  keywords     = {{Air ventilation; Cooling garments; Cooling performance; Hot environment; Occupational heat stress; Thermal manikin}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{International Journal of Industrial Ergonomics}},
  title        = {{Cooling garments against environmental heat conditions in occupational fields : measurements of the effect of a ventilation jacket on the total thermal insulation}},
  url          = {{http://dx.doi.org/10.1016/j.ergon.2021.103230}},
  doi          = {{10.1016/j.ergon.2021.103230}},
  volume       = {{86}},
  year         = {{2021}},
}