System and method for capacity control in a multiple...

Details System and method for capacity control in a multiple... System and method for capacity control in a multiple...

2007-04-24

2007-04-24

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Diverse, cascade or compound refrigeration-producing system

C062S185000, C062S228400, C062S510000, C417S002000, C417S007000, C417S044100

Reexamination Certificate

active

10822492

ABSTRACT:
A capacity control algorithm for a multiple compressor liquid chiller system is provided wherein the speed and number of compressors in operation are controlled in order to obtain a leaving liquid temperature setpoint. In response to an increase in the load in the chiller system, the algorithm determines if a compressor should be started and adjusts the operating speed of all operating compressors when an additional compressor is started. In response to a decrease in the load in the chiller system with multiple compressors operating, the algorithm determines if a compressor should be de-energized and adjusts the operating speed of all remaining operating compressors when a compressor is de-energized.

REFERENCES:
patent: 2442021 (1948-05-01), Rose
patent: 3390320 (1968-06-01), Kammiller et al.
patent: 3621365 (1971-11-01), Beck et al.
patent: 3909687 (1975-09-01), Abbondanti
patent: 4150425 (1979-04-01), Nagano et al.
patent: 4151725 (1979-05-01), Kountz et al.
patent: 4152902 (1979-05-01), Lush
patent: 4502842 (1985-03-01), Currier et al.
patent: 4546423 (1985-10-01), Seki
patent: 4614089 (1986-09-01), Dorsey
patent: 4633672 (1987-01-01), Persem et al.
patent: 4679404 (1987-07-01), Alsenz
patent: 4787211 (1988-11-01), Shaw
patent: 4877388 (1989-10-01), Inaba et al.
patent: 4958118 (1990-09-01), Pottebaum
patent: 5010287 (1991-04-01), Mukai et al.
patent: 5123256 (1992-06-01), Oltman
patent: 5235504 (1993-08-01), Sood
patent: 5343384 (1994-08-01), Fisher et al.
patent: 5350992 (1994-09-01), Colter
patent: 5446645 (1995-08-01), Shirahama et al.
patent: 5488279 (1996-01-01), Kawamoto et al.
patent: 5492273 (1996-02-01), Shah
patent: 5503248 (1996-04-01), Peruggi et al.
patent: 5509504 (1996-04-01), McHugh et al.
patent: 5528114 (1996-06-01), Tokizaki et al.
patent: 5586444 (1996-12-01), Fung
patent: 5735134 (1998-04-01), Liu et al.
patent: 5797729 (1998-08-01), Rafuse, Jr. et al.
patent: 5845509 (1998-12-01), Shaw et al.
patent: 5894736 (1999-04-01), Beaverson et al.
patent: 5896021 (1999-04-01), Kumar
patent: 6008616 (1999-12-01), Nagayama et al.
patent: 6018957 (2000-02-01), Katra et al.
patent: 6031738 (2000-02-01), Lipo et al.
patent: 6124697 (2000-09-01), Wilkerson
patent: 6185946 (2001-02-01), Hartman
patent: 6229722 (2001-05-01), Ichikawa et al.
patent: 6325142 (2001-12-01), Bosley et al.
patent: 6370888 (2002-04-01), Grabon
patent: 6408645 (2002-06-01), Tsuboe et al.
patent: 6434960 (2002-08-01), Rousseau
patent: 6459596 (2002-10-01), Corzine
patent: 6459606 (2002-10-01), Jadric
patent: 6499504 (2002-12-01), Wichert
patent: 6579067 (2003-06-01), Holden
patent: 6659726 (2003-12-01), Holden
patent: 2003/0037555 (2003-02-01), Street et al.
patent: 2003/0041605 (2003-03-01), Butcher et al.
patent: 2004/0000155 (2004-01-01), Cline et al.
patent: 1271067 (2003-01-01), None
patent: 1376842 (2004-01-01), None
patent: 10019395 (1998-01-01), None
patent: 2000184787 (2000-06-01), None
patent: 2002181370 (2002-06-01), None
patent: 95/06973 (1995-03-01), None
patent: WO 97/50022 (1997-12-01), None
patent: WO 00/41288 (2000-07-01), None
patent: WO 03/036189 (2003-05-01), None

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