Abstract: Abstract：Under exposure to flash fire, the surface temperature of the thermal protective clothing rises gradually during the exposure, and the heat transfer to human body might cause damage to skin. In this paper, the flame manikin system and the thermal infrared camera were used to capture the surface temperature of 10 sets of protective clothing and manikin after flame exposure. The results showed that the temperature of clothing was very high during the initial stage of cooling period, and the heat transferred to the body, resulting in the increase of the skin temperature for about 10 seconds, the rising rates of the arms and the legs are higher than those of the bodies. Decreasing of burning time, application of slight fabric reduce the tendency of rising surface temperature, but increase of burning time, tight garment will increase the tendency of rising surface temperature. A new parameter―the efficiency index of the heat dissipation about the flame manikin (γ) is introduced to attribute, contrast and compare the heat dissipation after the fire exposure.

Key words: flame manikin system, fireproof suit, surface temperature, heat dissipation, infra camera