Air re-circulation index

Details Air re-circulation index Air re-circulation index

2006-05-30

2006-05-30

Tanner, Harry B. (Department: 3744)

Automatic temperature and humidity regulation

Ventilator type

Electrically actuated

C165S080300, C062S259200

Reexamination Certificate

active

07051946

ABSTRACT:
An index of air re-circulation in a data center having one or more racks is determined to identify the level of heated air re-circulation into cooling fluid delivered to the one or more racks. The one or more racks comprise inlets and outlets and are positioned along a cool aisle and a hot aisle. The index is calculated by dividing the enthalpy rise due to infiltration of heated air into the cool aisle and the total enthalpy rise of the heated air from the outlets of the one or more racks.

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Bash, Cullen E., Chandrakant D. Patel, Ratnesh K. Sharma, “Efficient Thermal Management of Data Centers—Immediate and Long-Term Research Needs”, Apr. 2003.

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