Study on surface temperature of fireproof suit on flame manikin

Exposure to flash fire,the surface temperature of the fireproof suit rises gradually and transfers a great deal of heat to the body of the wearer,and it might cause burn to the skin. The flame manikin system and the thermal infrared camera were used to capture the surface temperature of fireproof suit and manikin after flame exposure. The results showed that the surface temperature of the manikin rose continuously within 10 seconds after the end the experiment due to the heat transferred from the suit to the body,and the rising rates on the skin of arms and the legs are higher than those of the torso. Decreasing expoure time to fire,fireproof suit made of fabrics with larger surface density will reduce the margin of temperature rising; and increasing the expoure time,the small sized suit will increase the margin of temperature rising. A new parameter of the efficiency index of the heat dissipation about the flame manikin( γ) is introduced to characterize and compare the heat dissipation after the fire exposure.