Refrigeration or heat pump system defrost

Details Refrigeration or heat pump system defrost Refrigeration or heat pump system defrost

1984-10-15

1985-12-31

Tanner, Harry

Refrigeration

Automatic control

Humidity sensor

62156, F25D 2106

Patent

active

045612633

ABSTRACT:
Disclosed is a refrigeration or heat pump system comprising an evaporator coil and apparatus for initiating the defrost cycles of the evaporator coil at a frequency proportional to the difference between a water vapor pressure in air in the evaporator coil environment and a saturation water vapor pressure corresponding to the evaporator coil temperature.

REFERENCES:
patent: 4328680 (1982-05-01), Stamp, Jr. et al.
patent: 4373349 (1983-02-01), Mueller
patent: 4395887 (1983-08-01), Sweetman
patent: 4417452 (1983-11-01), Ruminsky
U. Bonne, R. D. Jacobson, A. Patoni, D. A. Mueller and G. J. Rowley, "Electric Driven Heat Pump Systems: Simulations and Controls", 1979.
D. A. Mueller and U. Bonne, "New Heat Pump Control Functions via Microelectronics", Jun. 1980.

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