Cooling system for operation in low temperature environments

Details Cooling system for operation in low temperature environments Cooling system for operation in low temperature environments

1988-04-04

1988-11-22

Tanner, Harry B.

Refrigeration

Automatic control

62192, 62DIG17, F25B 4900

Patent

active

047856394

ABSTRACT:
Start-up problems in an intermittently operated evaporative cooling system to low temperature environments is avoided by the provision of one or more heaters 62, 64, 66 in the system. Typically the system will include an evaporator 10, a compressor 24, a condenser 42, a receiver 62 and an expansion valve 56. When low ambient temperatures reduce internal pressure within the system to a value below which it can be started through operation of the compressor 24, the heaters 62, 64, 66 may be energized to vaporize refrigerant and thus generate a pressure of sufficient magnitude so as to allow starting.

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