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:
Jun. 13, 2017

Filed:

Jan. 16, 2015
Applicant:

Dri-steem Corporation, Eden Prairie, MN (US);

Inventors:

Mark Allen Kirkwold, Shakopee, MN (US);

Cole K. Farley, Long Lake, MN (US);

James M. Lundgreen, Lakeville, MN (US);

Assignee:

Dri-Steem Corporation, Eden Prairie, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 5/00 (2006.01); F28C 3/08 (2006.01); A61L 2/10 (2006.01); B01F 3/04 (2006.01); F25B 39/02 (2006.01); F25D 7/00 (2006.01); G05D 9/12 (2006.01); F24F 6/04 (2006.01); F24F 1/00 (2011.01);
U.S. Cl.
CPC ...
A61L 2/10 (2013.01); B01F 3/04021 (2013.01); B01F 3/04078 (2013.01); B01F 3/04085 (2013.01); F24F 5/0035 (2013.01); F24F 6/043 (2013.01); F25B 39/02 (2013.01); F25B 39/028 (2013.01); F25D 7/00 (2013.01); F28C 3/08 (2013.01); G05D 9/12 (2013.01); F24F 2001/0088 (2013.01); Y02B 30/545 (2013.01); Y10T 137/0318 (2015.04); Y10T 137/7303 (2015.04);
Abstract

A staging control process for an evaporative media cooling system having a plurality of media stages is disclosed. In one step, a leaving air dry bulb temperature setpoint for air exiting the evaporative media cooling system is received or defined. In one aspect, an expected media exit dry bulb temperature is calculated for each media stage based on a dry bulb temperature and a wet bulb temperature of air entering the media cooling system and based on a measured or assigned condition of the media. In another aspect, an estimated combined leaving dry bulb temperature is calculated for different combinations of activated and deactivated media stages. Once the estimated leaving temperature is known, the method can then activate the media stage(s) associated with the combination that has an estimated combined leaving dry bulb temperature that is nearest to but less than the leaving air dry bulb temperature setpoint.


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