The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 02, 2016

Filed:

Feb. 27, 2012
Applicants:

Jiachuan Wang, Chaper Hill, NC (US);

Chaohong Cai, Weatogue, CT (US);

Ahmad M. Mahmoud, Bolton, CT (US);

Junqiang Fan, Glastonbury, CT (US);

Richard L. Martin, Cicero, NY (US);

John F. Boardman, Manchester, CT (US);

Timothy C. Wagner, East Hartford, CT (US);

Inventors:

Jiachuan Wang, Chaper Hill, NC (US);

Chaohong Cai, Weatogue, CT (US);

Ahmad M. Mahmoud, Bolton, CT (US);

Junqiang Fan, Glastonbury, CT (US);

Richard L. Martin, Cicero, NY (US);

John F. Boardman, Manchester, CT (US);

Timothy C. Wagner, East Hartford, CT (US);

Assignee:

CARRIER CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 29/00 (2006.01); F25B 49/04 (2006.01); F24H 4/02 (2006.01); F24D 3/18 (2006.01);
U.S. Cl.
CPC ...
F25B 49/043 (2013.01); F24D 3/18 (2013.01); F24H 4/02 (2013.01); F25B 29/006 (2013.01); F24D 2200/126 (2013.01); Y02B 30/12 (2013.01);
Abstract

A system for controlling an absorption chiller includes feedback control loops determining adjustments to system cooling and heating capacities and a controller for simultaneously adjusting positions of an energy input valve, a hot water valve, and a chilled water valve. The controller adjusts valves based on desired adjustments to system cooling and heating capacities and performance maps characterizing relationships between cooling capacity and heating capacities and valve positions. A method for controlling an absorption chiller includes the step of obtaining a performance map characterizing heat energy input to cooling and heating loops as functions of valve positions. To obtain the map, the hot water valve is held in a substantially constant position while the chilled water valve is modulated. Similarly, the hot water valve is modulated while the chilled water valve is held in a substantially constant position.


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