Air movement and thermal comfort in hot-humid environments (2): With occupant control

Experiments on the effect of self-controlled air movement on thermal comfort and favorable air speed of 16 subjects from China exposed to the combined environment with different temperatures (26, 28, 30 ℃) and relative humidities (RH) (60% and 80%) combinations in hot-humid environments. Results show that air movement can maintain thermal comfort up to 30 ℃ and 60% RH at sedentary activity and restore comfort quickly after high metabolic rate activities, and subjects prefer higher air speed than ASHRAE 55 upper limit while remain comfortable beyond the comfort zone recommended by ASHRAE.