A Study on Effect of Air Velocity on Human Thermal Sensation under Low-Pressure Environment

Through questionnaires,20 subjects are investigated about their thermal sensation and draft sensation under different pressure environments and different temperatures.The influence of air velocity on human mean thermal sensation(MTS) and draft sensation are analyzed under different air pressures.Then results show that human bodies are less sensitive to the air velocity variation under low-pressure environment and at high temperature.At 20~22 ℃,the effect of velocity changes on heavy-dressed subjects' thermal sensation in low air velocity(0.2 m/s) is slight under low-pressure.