Sub-wet bulb evaporative chiller system with multiple integrated subunits or chillers
US9207018B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Jan 22, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D9/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooling system integrating a plurality of evaporative chillers, which each cool water to below ambient wet bulb temperature. In an air-to-air heat exchanger of each chiller, the incoming airstream used to evaporate water from the water stream is first cooled indirectly using the cooled air that is exhausted from a saturator of an adjacent chiller or subunit. By pre-chilling the air without adding moisture, each of the chillers of the cooling system is able to achieve water temperatures below the ambient wet bulb temperature. The system integrates or “daisy chains” multiple sub-wet bulb evaporative chillers or subunits such that the cool air output from one subunit is used to pre-cool the incoming air of another neighboring unit. To this end, adjacent units have their heat exchangers fluidically connected together (e.g., air flow output from each saturator is passed as cool return air through channels of an adjacent heat exchanger).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.