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Title: Data center coolant switch

Abstract

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.

Inventors:
; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576461
Patent Number(s):
10440862
Application Number:
14/867,199
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
DOE Contract Number:  
EE0002894
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 28
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 97 MATHEMATICS AND COMPUTING

Citation Formats

Iyengar, Madhusudan K., Parida, Pritish R., and Schultz, Mark D. Data center coolant switch. United States: N. p., 2019. Web.
Iyengar, Madhusudan K., Parida, Pritish R., & Schultz, Mark D. Data center coolant switch. United States.
Iyengar, Madhusudan K., Parida, Pritish R., and Schultz, Mark D. Tue . "Data center coolant switch". United States. https://www.osti.gov/servlets/purl/1576461.
@article{osti_1576461,
title = {Data center coolant switch},
author = {Iyengar, Madhusudan K. and Parida, Pritish R. and Schultz, Mark D.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

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Works referenced in this record:

Method and apparatus for heating and cooling of buildings
patent, February 2004


Cooling system with auxiliary thermal buffer unit for cooling an electronics module
patent, June 2002


Multi-mode off-peak storage heat pump
patent, September 1986


Combined ambient-air and earth exchange heat pump system
patent, October 1995


Method, apparatus, and system for cooling electronic components
patent, September 2003


Scalable coolant conditioning unit with integral plate heat exchanger/expansion tank and method of use
patent, March 2004