Abstract:

In order to expand evaluation system of thermal manikin, considering the application status of traditional modes including constant skin temperature, constant heat flux and thermal comfort, it indicates that it has great necessity to integrate human thermoregulatory system into thermal manikin. In doing so, the shortcoming incapability of simulating human thermal regulation could be offset. Taking Fiala model as an example, the controlled system based on bio-heat equation and controlling system with four regulation mechanisms were analyzed. Combined with predicted mean vote (PMV), Unicweairy of Clifornia of Beerkeley (UCB) and other subjective thermal sensation models, thermoregulatory manikins could make predictions of both steady and transient thermal sensations, and evaluate comfort from the perspective of human beings. By comparisons between thermoregulatory numerical manikins and thermoregulatory manikins, it is concluded that the former has better flexibility, but has more influencing factors. Therefore, the latter has better accuracy.

Key words: clothing comfort, thermal manikin, thermoregulation, numerical simulation, steady thermal sensation, transient thermal sensation