Closed Loop Cooling System for University Laboratory

< Back to projects

Location: Southeastern US

This client wished to convert their four-story, 150,000-square-foot building into research laboratories and office space. Originally designed in 1962 as classroom and laboratory space for the institute’s chemical engineering students, the renovated facility is currently occupied by the School of Electrical and Computer Engineering.

Our client retained POWER to design a closed loop cooling system to serve one of their laboratories. The critical and sensitive process tools in the laboratory require a higher temperature cooling loop with fail-safe provisions to prevent formation of harmful condensation. The available campus HVAC chilled water system is generally maintained at about 45º. POWER’s design of the new closed loop recirculation system supplies 55º process chilled water to the laboratory.

POWER coordinated closely with our client’s research scientists to define system requirements. The system is sized to accommodate future loads, and includes a water-to-water heat exchanger, and one operating and one full-standby circulating pump with alternating fail-safe controls. Additional system redundancy is provided by an automatic fail-safe switching arrangement allowing pressurized campus chilled water to be diverted first into the closed loop and then to an open discharge drain. The system is also equipped with an alarm system to notify operators to initiate tool shutdown.