US Patent No. 9,554,491

COOLING A DATA CENTER


Patent No. 9,554,491
Issue Date January 24, 2017
Title Cooling A Data Center
Inventorship Eehern J. Wong, El Macero, CA (US)
Gregory P. Imwalle, Mountain View, CA (US)
Emad Samadiani, Mountain View, CA (US)
Assignee Google Inc., Mountain View, CA (US)

Claim of US Patent No. 9,554,491

1. A data center cooling system, comprising:
a cooling liquid supply conduit fluidly coupled between a cooling plant and an air-to-liquid heat exchanger positioned to
receive a heated airflow from one or more racks in a data center, at least one rack supporting a plurality of heat-generating
electronic devices;

a cooling liquid return conduit fluidly coupled between the cooling plant and the air-to-liquid heat exchanger; and
a heat transfer module comprising a thermoelectric cooling module thermally coupled to the cooling liquid supply and return
conduits between the cooling plant and the air-to-liquid heat exchanger, the heat transfer module comprising a cold side and
a warm side, the cold side thermally coupled to the cooling liquid supply conduit to transfer heat from a flow of a cooling
liquid in the cooling liquid supply conduit to the warm side of the heat transfer module, the warm side comprising a heat
sink that is thermally coupled to the cooling liquid return conduit.