Title
Heat gain from thermal radiation through protective clothing with different insulation, reflectivity and vapour permeability
Author
TNO Defensie en Veiligheid
Bröde, P.
Kuklane, K.
Candas, V.
den Hartog, E.A.
Griefahn, B.
Holmér, I.
Meinander, H.
Nocker, W.
Richards, M.
Havenith, G.
Publication year
2010
Abstract
The heat transferred through protective clothing under long wave radiation compared to a reference condition without radiant stress was determined in thermal manikin experiments. The influence of clothing insulation and reflectivity, and the interaction with wind and wet underclothing were considered. Garments with different outer materials and colours and additionally an aluminised reflective suit were combined with different number and types of dry and pre-wetted underwear layers. Under radiant stress, whole body heat loss decreased, i.e., heat gain occurred compared to the reference. This heat gain increased with radiation intensity, and decreased with air velocity and clothing insulation. Except for the reflective outer layer that showed only minimal heat gain over the whole range of radiation intensities, the influence of the outer garments' material and colour was small with dry clothing. Wetting the underclothing for simulating sweat accumulation, however, caused differing effects with higher heat gain in less permeable garments.
Subject
Heat budget models
Heat stress
Protective clothing
Thermal manikin
To reference this document use:
http://resolver.tudelft.nl/uuid:facf1bf5-ca56-4665-92ea-c455a78cd4e8
TNO identifier
408444
ISSN
1080-3548
Source
International Journal of Occupational Safety and Ergonomics (JOSE), 16 (16), 231-244
Document type
article