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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
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- Del Ferraro, Simona (author)
- National Institute for Insurance Against Accidents at Work (INAIL)
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- Falcone, Tiziana (author)
- National Institute for Insurance Against Accidents at Work (INAIL)
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- Morabito, Marco (author)
- University of Florence
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- (creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
- In: International Journal of Industrial Ergonomics. - : Elsevier BV. - 0169-8141. ; 86
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)
Keyword
- Air ventilation
- Cooling garments
- Cooling performance
- Hot environment
- Occupational heat stress
- Thermal manikin
Publication and Content Type
- art (subject category)
- ref (subject category)
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