Data center cooling system

摘要

A data center cooling system may include heat transfer equipment to cool a liquid coolant without vapor compression refrigeration, and the liquid coolant is used on a liquid cooled information technology equipment rack housed in the data center. The system may also include a controller-apparatus to regulate the liquid coolant flow to the liquid cooled information technology equipment rack through a range of liquid coolant flow values based upon information technology equipment temperature thresholds.

主权项

1. A system for controlling a data center, the system comprising:
a recirculation value configured to bypass an outdoor heat exchanger when opened; a dew point sensor; heat transfer equipment to cool a liquid coolant without vapor compression refrigeration, and the liquid coolant is used on a liquid cooled information technology equipment rack housed in a data center; and a controller-apparatus to regulate the liquid coolant flow to the liquid cooled information technology equipment rack through a range of liquid coolant flow values based upon information technology equipment temperature thresholds, the controller-apparatus configured to:
measure a temperature at the data center;measure a dew point at the data center;open the recirculation valve when the measured temperature at the data center decreases below a minimum target temperature threshold and maintain the data center above the dew point;close the recirculation valve when the measured temperature at the data center increases above the minimum target temperature threshold;operate the data center at a minimum cooling power state when the measured temperature at the data center is between the minimum target temperature threshold and a maximum target temperature threshold; andincrease liquid coolant flow rate when the measured temperature at the data center increases above the maximum target temperature threshold.