Local radiative heat transfer on a human body. Analyses through Modelling
Résumé
In usual moderate climate, convective and radiative heat exchanges are the main avenue for heat losses on a human body. For the evaluation of those processes, many problems are encountered and are different through calculation or measurement. If a thermal mannequin is used the total dry losses are measured but it is difficult to determine the proportion of each component. On the other hand if those heat losses have to be calculated, then all local coefficients and temperatures are needed. Radiation is now quite easy to calculate with accuracy. The approach proposed here is to find a better estimation of the radiative heat transfer coefficients through a modeling. So that if the same thermal
conditions are performed with the mannequin, we will be able to evaluate the convective heat coefficients from the total sensible measured losses and the calculated radiative ones. Before doing these experiments, several numerical tests have to be done to find the best thermal configuration and analyze the effects of temperature or emissivity changes.
Domaines
Thermique [physics.class-ph]
Origine : Fichiers produits par l'(les) auteur(s)
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