Control of cooling towers for chilled fluid systems
US8473080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/11
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for controlling a cooling tower that cools condenser fluid for a condenser of a chiller includes a cooling tower fan system that controllably varies a speed of at least one fan motor. The system further includes an extremum seeking controller that receives inputs of power expended by the cooling tower fan system and of power expended by the chiller. The extremum seeking controller provides an output to the cooling tower fan system that controls the speed of the at least one fan motor. The extremum seeking controller determines the output by searching for a speed of the at least one fan motor that minimizes the sum of the power expended by the cooling tower fan system and the power expended by the chiller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.