Data processing: generic control systems or specific application – Specific application – apparatus or process – Specific application of temperature responsive control system
Reexamination Certificate
2008-02-15
2009-12-08
Jarrett, Ryan A (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Specific application of temperature responsive control system
C700S277000, C062S259200, C361S701000
Reexamination Certificate
active
07630795
ABSTRACT:
Method and air-cooling unit are provided for dynamically adjusting airflow rate through and heat removal rate of the air-cooling unit to facilitate cooling of one or more electronics racks of a data center. The air-cooling unit includes a housing, an air-moving device, and an air-to-liquid heat exchanger. The air-moving device moves air through the housing from the air inlet side to the air outlet side thereof, and the heat exchanger cools the air passing through the housing. A control unit controls the air-moving device and the flow of liquid coolant through the heat exchanger to automatically, dynamically adjust airflow rate and heat removal rate of the air-cooling unit to achieve a current airflow rate target and current heat removal rate target therefore. The current targets are based on airflow rate through and heat load generated by one or more associated electronics racks of the data center.
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Campbell Levi A.
Chu Richard C.
Ellsworth, Jr. Michael J.
Iyengar Madhusudan K.
Schmidt Roger R.
Heslin Rothenberg Farley & & Mesiti P.C.
International Business Machines - Corporation
Jarrett Ryan A
Monteleone, Esq. Geraldine
Radigan, Esq. Kevin P.
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