Chiller control

Details Chiller control Chiller control

1980-02-01

1981-06-23

Wayner, William E.

Refrigeration

Automatic control

Of closed system sorbent type

62158, 62211, 62212, 62213, 62217, 62228, 62201, F25B 1500, F25B 4100, F25B 100

Patent

active

042742641

ABSTRACT:
A control means is disclosed that is used with a closed refrigeration system having a chiller and a condenser to provide refrigeration to chill the fluid medium and a refrigerant pump for pumping the refrigerant through the system with refrigerant capacity control means determining the capacity of the refrigerant, the control means for the system using signal inputs representative of outside air temperature, return chilled water temperature, supply chilled water temperature, and condenser temperature, in which settable controllers are used to determine the optimum temperature signals for controlling the system at any given time. A timer is also connected to the control mechanism for alternately interrupting an optimum temperature signal to reduce the overall change in the control signal. Additional control may be obtained through the use of signals representative of humidity, strong solution temperature and cooling water output pressure.

REFERENCES:
patent: 2948124 (1960-08-01), Embury, Sr.
patent: 3250084 (1966-05-01), Anderson
patent: 3750419 (1973-08-01), Bawel
patent: 3837174 (1974-09-01), Miyagi et al.
patent: 3864930 (1975-02-01), Hopkins
patent: 3895499 (1975-07-01), Hopkins
patent: 4090372 (1978-05-01), Lamb
patent: 4164128 (1979-08-01), Newton
patent: 4202181 (1980-05-01), Lamb

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