| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve a small configuration and avoid increase in humidification cost and filter cost due to intake of the outside air. <P>SOLUTION: An outside air cooler 3 using a sensible heat exchanger 3-3 is provided. The outside air cooler 3 includes a first passage 3A and a second passage 3B. An air supply fan 3-1 is provided in the first passage 3A and an outside air fan 3-2 is provided in the second passage 3B. The air supply fan 3-1 returns all amount of return air RA from a data center 1 to the data center 1 as supply air SA, and the outside air fan 3-2 returns all amount of outside air OA taken in from the outside world to the outside world as exhaust air EXA. The sensible heat exchanger 3-3 exchanges sensible heat between the return air RA before returned to the data center 1 as the supply air SA and the return air RA before returned to the outside world as the exhaust air EXA. Thus, without introducing the outside air OA to the data center 1, outside air cooling in the data center 1 is performed. Part of the return air RA may be discharged to the outside world and only small amount of part of the outside air OA may be mixed with the supply air SA side. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
