| 摘要 |
PROBLEM TO BE SOLVED: To perform air conditioning with a heat exchange medium of ambient air cooling type and a heat exchange medium of water cooling type and significantly reduce the running cost of an air conditioning device, as well as provide an air conditioning device for a server system with which it is possible to reliably cool the inside of a server rack even when the ambient air temperature is high.SOLUTION: The air conditioning device comprises a heat exchange device C, an outdoor air duct 10, and an exhaust duct 11. The heat exchange device C is configured with a first heat exchange medium 20 using a heat pipe 37 as a heat transfer element, a second heat exchange medium 21 of water cooling type to the windward of the first heat exchange medium 20, an air conditioning case 22, a blower fan 23 and a circulation fan 24, and a water feeding facility 25 including a chiller 58. Normally, the outdoor air is fed to the heat exchange device C by the blower fan 23, and the inside of a server rack 1 is air-conditioned by the first heat change medium 20. When the outdoor air temperature is high, the cooling water cooled by the chiller 58 is fed to the second heat exchange medium 21 by the water feeding facility 25, and the inside of the server rack 1 is air-conditioned by both of the heat exchange media 20, 21.SELECTED DRAWING: Figure 1 |
