Cooling system with indirect humidity determination
US8783049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2010 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooling system for a data center in which equipment racks are disposed has a cooling unit and a controller coupled to the cooling unit. The cooling system includes temperature sensors at or near the cooling unit's air return inlet, at or near the cooling unit's air supply outlet, and at or near the equipment racks air inlet(s). The controller measures these temperatures. A relative humidity sensor is located at or near the air return inlet of the cooling unit. The relative humidity where the relative humidity sensor is located is measured by the controller using the relative humidity sensor. The controller calculates the dew point temperature from the temperature sensor and relative humidity. Using this dew point, which is essentially constant throughout the space being conditioned, and the temperatures from the other locations, the controller then calculates the relative humidity at each location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.