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Réaction thermophysiologique des êtres humains travaillant dans les chambres de congélation au Portugal.

Thermophysiological response of human beings working within freezing chambers in Portugal.

Auteurs : RAIMUNDO A. M., OLIVEIRA A. V. M., GASPAR A. R., et al.

Résumé

The present work is dedicated to the assessment of the cold thermal strain of human beings working within freezing chambers in Portugal. To obtain the present results both field measurements and a numerical procedure based on a modified version of the Stolwijk thermoregulation model were used. Eighteen freezing chambers were considered. A wide range of physical parameters of the cold stores, the workers clothing insulation and the working and recovering periods were observed. The combination of these environmental and individual parameters lead to different levels of thermal stress, which were grouped under three categories.
Some good practices were observed in the field evaluations, namely situations with appropriate level of clothing protection and limited duration of exposure to cold avoiding unacceptable level of hypothermia. However, the clothing ensembles normally used by the workers do not provide the minimum required insulation, which suggest the possibility of the whole body cooling for levels higher than admissible. The numerical predictions corroborate the main conclusions of the field survey. The results obtained with both methodologies clearly show that, for the low temperature of the freezing chambers, the clothing insulation is insufficient, the exposure periods are too long and the recovering periods are inadequate. Thus, high levels of physiological strain can indeed be reached by human beings under such working environments.

Documents disponibles

Format PDF

Pages : 8

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Thermophysiological response of human beings working within freezing chambers in Portugal.
  • Identifiant de la fiche : 30017970
  • Langues : Anglais
  • Source : CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
  • Date d'édition : 03/05/2016

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