Patent ID: 8534119

Claim:
A system for measuring hot or cold aisle containment air leakage in a data center, the system comprising: a plurality of equipment enclosures arranged in a first row and a second row; a plurality of panels cooperatively arranged with the plurality of equipment enclosures to form an air containment region; a conduit mounted within the air containment region and sealed at each end, the conduit having an orifice and a plurality of openings distributed at substantially uniform intervals along a length of the conduit; a differential air pressure detection device coupled to the orifice and configured to detect a difference between an air pressure within the conduit and ambient air pressure outside of the air containment region; and an air flow measurement device configured to calculate an infiltration air flow rate of the air containment region based on the difference between the air pressure within the conduit and the ambient air pressure, wherein the infiltration air flow rate of the air containment region is calculated as in the equation: scfm=(61474.2 *R HACS −36082.5)* DP +offset wherein scfm is the air containment system infiltration rate, R HACS is the opening area ratio for the air containment system, DP is the absolute value of the ambient air pressure in inches of water column less the air containment system internal air pressure in inches of water column, and offset is a constant value.