Hot gas bypass control for centrifugal liquid chillers

Details Hot gas bypass control for centrifugal liquid chillers Hot gas bypass control for centrifugal liquid chillers

1979-01-15

1981-02-03

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62209, 62201, F25B 4100, F25D 1702

Patent

active

042480558

ABSTRACT:
A control system and a method are disclosed for automatically controlling a hot gas bypass valve as a function for cooling load and head. A valve/controller is provided for controlling the operation of the hot gas bypass valve so as to avoid surging of the compressor in response to temperatures of the chilled liquid entering the evaporator, the chilled liquid leaving the evaporator, and the liquid refrigerant at the outlet of the condenser.

REFERENCES:
patent: 2739451 (1956-03-01), Breck
patent: 3174298 (1965-03-01), Kleiss
patent: 3250084 (1966-05-01), Anderson
patent: 3522711 (1970-08-01), Shaughnessy
patent: 3780532 (1973-12-01), Norbeck et al.

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