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DATA CENTER COOLANT SWITCH

United States Patent Application

20160021795
A1
View the Complete Application at the US Patent & Trademark Office
A data center cooling system has an indoor portion wherein heat is absorbed from components in the data center, and an outdoor heat exchanger portion wherein outside air is used to cool a first heat transfer fluid (e.g., water) present in at least the outdoor heat exchanger portion of the cooling system during a first mode. When an appropriate time has been reached to switch from the first mode to a second mode, the outdoor heat exchanger portion of the data cooling system is switched to a second heat transfer fluid, which is a relatively low performance heat transfer fluid (compared to the first fluid). It has a second heat transfer fluid freezing point, lower than the first heat transfer fluid freezing point, and sufficiently low to operate without freezing when the outdoor air temperature drops below a first predetermined relationship with the first heat transfer fluid freezing point.
Iyengar, Madhusudan K. (Woodstock, NY), Parida, Pritish R. (Fishkill, NY), Schultz, Mark D. (Ossining, NY)
14/ 867,199
September 28, 2015
STATEMENT OF GOVERNMENT RIGHTS [0002] This invention was made with Government support under Contract No.: DE-EE0002894 (Department of Energy (DOE). The Government has certain rights in this invention.