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Wyszukujesz frazę "thermal manikin" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Heat Gain From Thermal Radiation Through Protective Clothing With Different Insulation, Reflectivity and Vapour Permeability
Autorzy:
Brode, P.
Kuklane, K.
Candas, V.
Den Hartog, E. A.
Griefahn, B.
Holmer, I.
Meinander, H.
Nocker, W.
Richards, M.
Havenith, G.
Powiązania:
https://bibliotekanauki.pl/articles/90351.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
protective clothing
heat stress
heat budget models
thermal manikin
Opis:
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.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 2; 231-244
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parallel and Serial Methods of Calculating Thermal Insulation in European Manikin Standards
Autorzy:
Kuklane, K.
Gao, C.
Wang, F.
Holmer, I.
Powiązania:
https://bibliotekanauki.pl/articles/90483.pdf
Data publikacji:
2012
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
thermal manikin
European standard
clothing insulation
serial calculation method
parallel calculation method
human subject studies
Opis:
Standard No. EN 15831:2004 provides 2 methods of calculating insulation: parallel and serial. The parallel method is similar to the global one defined in Standard No. ISO 9920:2007. Standards No. EN 342:2004, EN 14058:2004 and EN 13537:2002 refer to the methods defined in Standard No. EN ISO 15831:2004 for testing cold protective clothing or equipment. However, it is necessary to consider several issues, e.g., referring to measuring human subjects, when using the serial method. With one zone, there is no serial–parallel issue as the results are the same, while more zones increase the difference in insulation value between the methods. If insulation is evenly distributed, differences between the serial and parallel method are relatively small and proportional. However, with more insulation layers overlapping in heavy cold protective ensembles, the serial method produces higher insulation values than the parallel one and human studies. Therefore, the parallel method is recommended for standard testing.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2012, 18, 2; 171-179
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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