Automatic chiller plant balancing

Details Automatic chiller plant balancing Automatic chiller plant balancing

1991-11-12

1993-03-23

Ford, John K.

Refrigeration

Processes

Compressing, condensing and evaporating

62175, 62201, 62230, 236 1EA, F25B 500, F25B 700

Patent

active

051953293

ABSTRACT:
A method and control system for operating a chiller system having a lead compressor and a lag compressor in which the load on the compressors is balanced by limiting the % KW demand on the lag compressor from exceeding the 90 KW of the lead compressor while forcing the lag compressor to supply chilled water at a temperature lower than the lead compressor chilled water.

REFERENCES:
patent: 3648479 (1972-03-01), Richardson
patent: 4152902 (1979-05-01), Lush
patent: 4210957 (1980-07-01), Spethmann
patent: 4384462 (1983-05-01), Overman et al.
patent: 4463574 (1984-08-01), Spethmann et al.
patent: 4483152 (1984-11-01), Bitondo
patent: 4487028 (1984-12-01), Foye
patent: 4633672 (1987-01-01), Persem et al.
patent: 4646530 (1987-03-01), Huenniger
patent: 4656835 (1987-04-01), Kidder et al.
patent: 5097670 (1992-03-01), Yoshikawa et al.
Ashrae Handbook 1983 Equipment published by ASHRAE 1791 Tullie Circle NE Atlanta Ga. 30329 pp. 18.2, 18.3, 18.11 (May 1983).

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