Heating temperature based on the most uncomfortable part of human body

Wang Zhaojun, Liu Chang, Su Xiaowen and Yang Yuxin

2021.12.22

According to the experimental data in a microclimate chamber, studies the distribution characteristics of room temperature in the radiant floor heating and radiator heating environments commonly used in northern China, and its influence on the local thermal sensation and thermal comfort of different parts of the human body, and discusses the relationship between the air temperature at the most uncomfortable part and the heating temperature. The results show that when the room temperature is 19 ℃, the average overall thermal sensation vote in the two heating environments is -0.11 and 0.08, respectively. The thermal sensation votes of the ankle are all the lowest, which is -0.17 and 0.04, respectively. When the thermal sensation of the ankle is neutral, the overall thermal comfort would be satisfied. The intelligent heating temperature control strategy is as follows: under the premise of ankle thermal comfort, the temperature at room temperature control point (at a height of 1.1 m in the center of room) is 18.7 ℃ for the floor radiant heating, and 20 ℃ for the radiator heating.