PURPOSE: To improve air cooling efficiency by a method wherein a rotary moisture absorbing body is divided into a plurality of sections, heat exchanging spaces are formed in these sections and a heat pipe is provided with one end disposed in a heat exchanging space corresponding to an outside air introducing passage and the other end disposed in a specific position of a room air exhaust passage.
CONSTITUTION: Rotary moisture absorbing bodies 3 (a and b) are provided between an outside air introducing passage 1 and a room air exhaust passage 2. An air cooler 10 and a cooler 11 are provided downstream of the rotary moisture absorbing body 3 in the outside air introducing passage 1. An air heater 14 is provided downstream of a room air exhaust fan 12b in the room air exhaust passage 2. In the aforesaid structure, the rotary moisture absorbing body 3 is divided into a plurality of sections and heat exchanging spaces 4 (a and b) are formed in these sections. Each heat pipe 15 (a and b) is provided with one end disposed in the heat exchanging space 4 corresponding to the outside air introducing passage 1 and the other end disposed upstream of the air heater 14 in the room air exhaust passage 2.
YANAGI HIDEJI
OGURA MASAO
TERASAWA HIDEAKI
TOKYO GAS CO LTD