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Prediction of WBGT-based clothing adjustment values from evaporative resistance.
Bernard, Thomas E; Ashley, Candi D; Garzon, Ximena P; Kim, Jung-Hyun; Coca, Aitor.
Afiliación
  • Bernard TE; College of Public Health, University of South Florida, USA.
  • Ashley CD; College of Education, University of South Florida, USA.
  • Garzon XP; College of Public Health, University of South Florida, USA.
  • Kim JH; National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, USA.
  • Coca A; National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, USA.
Ind Health ; 55(6): 549-554, 2017 Dec 07.
Article en En | MEDLINE | ID: mdl-29033404
Wet bulb globe temperature (WBGT) index is used by many professionals in combination with metabolic rate and clothing adjustments to assess whether a heat stress exposure is sustainable. The progressive heat stress protocol is a systematic method to prescribe a clothing adjustment value (CAV) from human wear trials, and it also provides an estimate of apparent total evaporative resistance (Re,T,a). It is clear that there is a direct relationship between the two descriptors of clothing thermal effects with diminishing increases in CAV at high Re,T,a. There were data to suggest an interaction of CAV and Re,T,a with relative humidity at high evaporative resistance. Because human trials are expensive, manikin data can reduce the cost by considering the static total evaporative resistance (Re,T,s). In fact, as the static evaporative resistance increases, the CAV increases in a similar fashion as Re,T,a. While the results look promising that Re,T,s can predict CAV, some validation remains, especially for high evaporative resistance. The data only supports air velocities near 0.5 m/s.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vestuario / Humedad Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: Ind Health Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Japón
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vestuario / Humedad Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: Ind Health Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Japón