ABSTRACT
An air control system providing an indoorthermal environment for comfortable sleep is proposed. This system predicts an index for thermal sensation while sleeping. It can feed back the calculated results to reset the target temperature of an air conditioner. In the present study, sleep experiments were carried out during both summer and winter seasons using a young subject by tentatively assuming a comfortable zone of thermal sensation during sleep under this system. The target temperature was well controlled in conjunction with the predicted value of the thermal sensation index, which converged into the comfortable zone with time. A stable time profile of the predicted values for thermal sensation is closely related to no awakening while sleeping and thus a comfortable sleep. Therefore, the proposed air control system that predicts the thermal sensation index could be effective in creating a comfortable indoor climate for sleep.
