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Title: Coolant and ambient temperature control for chillerless liquid cooled data centers

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.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1377817
Patent Number(s):
9,750,165
Application Number:
14/792,196
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION DOEEE
DOE Contract Number:
EE0002894
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jul 06
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Chainer, Timothy J., David, Milnes P., Iyengar, Madhusudan K., Parida, Pritish R., and Simons, Robert E. Coolant and ambient temperature control for chillerless liquid cooled data centers. United States: N. p., 2017. Web.
Chainer, Timothy J., David, Milnes P., Iyengar, Madhusudan K., Parida, Pritish R., & Simons, Robert E. Coolant and ambient temperature control for chillerless liquid cooled data centers. United States.
Chainer, Timothy J., David, Milnes P., Iyengar, Madhusudan K., Parida, Pritish R., and Simons, Robert E. 2017. "Coolant and ambient temperature control for chillerless liquid cooled data centers". United States. doi:. https://www.osti.gov/servlets/purl/1377817.
@article{osti_1377817,
title = {Coolant and ambient temperature control for chillerless liquid cooled data centers},
author = {Chainer, Timothy J. and David, Milnes P. and Iyengar, Madhusudan K. and Parida, Pritish R. and Simons, Robert E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 8
}

Patent:

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  • 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.
  • Systems and methods for cooling include one or more computing structure, an inter-structure liquid cooling system that includes valves configured to selectively provide liquid coolant to the one or more computing structures; a heat rejection system that includes one or more heat rejection units configured to cool liquid coolant; and one or more liquid-to-liquid heat exchangers that include valves configured to selectively transfer heat from liquid coolant in the inter-structure liquid cooling system to liquid coolant in the heat rejection system. Each computing structure further includes one or more liquid-cooled servers; and an intra-structure liquid cooling system that has valvesmore » configured to selectively provide liquid coolant to the one or more liquid-cooled servers.« less
  • Systems and methods for cooling include one or more computing structure, an inter-structure liquid cooling system that includes valves configured to selectively provide liquid coolant to the one or more computing structures; a heat rejection system that includes one or more heat rejection units configured to cool liquid coolant; and one or more liquid-to-liquid heat exchangers that include valves configured to selectively transfer heat from liquid coolant in the inter-structure liquid cooling system to liquid coolant in the heat rejection system. Each computing structure further includes one or more liquid-cooled servers; and an intra-structure liquid cooling system that has valvesmore » configured to selectively provide liquid coolant to the one or more liquid-cooled servers.« less
  • A liquid-metal-cooled fast-breeder reactor which has a thermal liner spaced inwardly of the pressure vessel and includes means for passing bypass coolant through the annulus between the thermal liner and the pressure vessel to insulate the pressure vessel from hot outlet coolant includes control ports in the thermal liner a short distance below the normal operating coolant level in the reactor and an overflow nozzle in the pressure vessel below the control ports connected to an overflow line including a portion at an elevation such that overflow coolant flow is established when the coolant level in the reactor is abovemore » the top of the coolant ports. When no makeup coolant is added, bypass flow is inwardly through the control ports and there is no overflow; when makeup coolant is being added, coolant flow through the overflow line will maintain the coolant level. 2 figs.« less
  • A liquid-metal-cooled fast-breeder reactor which has a thermal liner spaced inwardly of the pressure vessel and includes means for passing bypass coolant through the annulus between the thermal liner and the pressure vessel to insulate the pressure vessel from hot outlet coolant includes control ports in the thermal liner a short distance below the normal operating coolant level in the reactor and an overflow nozzle in the pressure vessel below the control ports connected to an overflow line including a portion at an elevation such that overflow coolant flow is established when the coolant level in the reactor is abovemore » the top of the coolant ports. When no makeup coolant is added, bypass flow is inwardly through the control ports and there is no overflow; when makeup coolant is being added, coolant flow through the overflow line will maintain the coolant level.« less