Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1987-04-30
1988-03-08
Cline, William R.
Heat exchange
Movable heating or cooling surface
Rotary drum
165921, 165 804, 236 78B, 62175, 62272, 357 82, 361382, 174 15R, G05D 2319, F25B 2900
Patent
active
047294248
ABSTRACT:
A cooling system for maintaining the temperature within electronic equipment has a circulation system for pumping a cooling liquid, such as water, through the electronic equipment where it picks up heat generated by the electronic equipment. The cooling liquid is pumped through a plurality of heat exchangers using a refrigerant which is, in turn, pumped through a compressor-condensor combination, each heat exchanger having approximately the same cooling capacity. A central control selects the number of heat exchangers which are to operate at any given time, on a basis of the differential in the temperature of the water being pumped into and out of the electronic equipment. This maintains a desired and relatively wide range of temperatures. A heating element selectively and controllably heats the cooled water to bring the wide range of temperatures to a selected and fixed temperature.
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Mizuno Tsukasa
Okano Minoru
Cline William R.
Ford John K.
NEC Corporation
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