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Water chiller economizer system

[Category : - OTHER]
[Viewed 550 times]

A process-fluid chiller system for chilling a process fluid to be transported to a process load to remove thermal energy from the process load. The process-fluid chiller system includes a storage tank in which the process fluid can be stored, and a refrigeration system that can be selectively activated to chill the process fluid. The refrigeration system includes an evaporation device for evaporating a refrigerant from a liquid state to a gaseous state and a compressor for elevating a pressure of the refrigerant in the gaseous state. A temperature sensor is included for sensing a temperature of an exchange medium to which thermal energy from the process fluid can be transferred when the temperature of the exchange medium falls below a predetermined low temperature. Also included is a closed-loop heat exchanger that can selectively be placed in fluid communication with the storage tank and selectively taken out of fluid communication with the storage tank based at least in part on the sensed temperature of the exchange medium. The process-fluid chiller system further includes a control system for controlling activation of the refrigeration system and selective placement of the closed-loop heat exchanger in fluid communication with the storage tank.

Patent publications:

US 8418487

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martinpking (United States)

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