US 2015/0316334 A1Published application

Coolant and ambient temperature control for chillerless liquid cooled data centers

AssigneeInternational Business Machines Corporation

InventorsTIMOTHY J. CHAINER, MILNES P. DAVID, MADHUSUDAN K. IYENGAR, PRITISH R. PARIDA, ROBERT E. SIMONS

Life of this patent

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Abstract

Cooling control methods and systems include measuring a temperature of air provided to one or more nodes by an air-to-liquid heat exchanger; measuring a temperature of at least one component of the one or more 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 one or more nodes based on the comparisons.

Claims8

Dependent claims

A cooling system comprising:

one or more nodes, each node having at least one temperature sensor to monitor a temperature of internal node components;
an air-to-liquid heat exchanger configured to accept a liquid coolant input and to provide cooled air to the one or more nodes;
a temperature sensor to monitor a temperature of the air provided by the air-to-liquid heat exchanger;
a liquid cooling system configured to provide liquid coolant to components of the one or more nodes;
a valve configured to control coolant flow to the air-to-liquid heat exchanger and the liquid cooling system based on the temperature of internal node components and the temperature of the air provided by the air-to-liquid heat exchanger;
and
a pump configured to provide liquid coolant to the liquid cooling system and the air-to-liquid heat exchanger, having a pump strength that is based on the temperature of internal node components and the temperature of the air provided by the air-to-liquid heat exchanger.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/792,196Filed 6 Jul 2015
Priority: 4 Apr 2012
Published: 5 Nov 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H05K 7/20836
For server racks or cabinets; for data centers, e.g. 19-inch computer racks: thermal management, e.g. server temperature control
F28F 27/02
Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus: for controlling the distribution of…
G05D 23/1932
Sensing the temperaure in different places in thermal relationship with one or more spaces: to control the temperature of a plurality of spaces
G06F 1/206
Cooling means: comprising thermal management

Family

Application13/439,471Division · filed 4 Apr 2012
Application14/792,196Division
US 2013/0264046 A1Published application
US 9,250,636 B2Related patent
US 9,750,165 B2Related patent
US 2015/0316334 A1This patent

From the US filing history. Foreign family members aren’t listed.