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Coolant and ambient temperature control for chillerless liquid cooled data centers

United States Patent

February 2, 2016
View the Complete Patent at the US Patent & Trademark Office
Cooling control methods include measuring a temperature of air provided to a plurality of nodes by an air-to-liquid heat exchanger, measuring a temperature of at least one component of the plurality of nodes and finding a maximum component temperature across all such nodes, comparing the maximum component temperature to a first and second component threshold and comparing the air temperature to a first and second air threshold, and controlling a proportion of coolant flow and a coolant flow rate to the air-to-liquid heat exchanger and the plurality of nodes based on the comparisons.
Chainer; Timothy J. (Putnam Valley, NY), David; Milnes P. (Fishkill, NY), Iyengar; Madhusudan K. (Woodstock, NY), Parida; Pritish R. (Fishkill, NY), Simons; Robert E. (Poughkeepsie, NY)
13/ 439,471
April 4, 2012
GOVERNMENT RIGHTS This invention was made with Government support under Contract No.: DE-EE0002894 (Department of Energy). The government has certain rights in this invention.