To provide a novel heating element cooling system having reduced power consumption.
A first heating element 2 is water cooled by water cooled by outside air and a second heating element 3 is indirectly air cooled via the cooled water by outside air. When a temperature in a cell phone base station 1 is 20°C or higher, air in the cell phone base station 1 is cooled by a steam pressure refrigerating machine 8. Thus, compared with the case that the all quantity of heat generated in the cell phone base station 1 is released to the outside of the cell phone base station 1 by the steam pressure refrigerating machine, the power consumption of the cooling system can be reduced. When the steam pressure refrigerating machine 8 is operated, the quantity of heat which cannot be absorbed by an indoor heat exchanger 6d, out of the quantity of heat generated by the second heating element 3, can be released to the outside of the cell phone base station 1 by the steam pressure refrigerating machine 8, therefore reducing the power consumption of the steam pressure refrigerating machine 8.
Takahiro Miura
Fumihiro Mizuno
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