Patent ID: 8768519

Claim:
An apparatus for controlling grille aperture ratios of a plurality of air transfer grilles which are installed in a room, each of the air transfer grilles blowing air cooled by an air conditioner, the room accommodating a plurality of racks, each of the racks installed with a plurality of computers, each of the computers having an inlet and controlling an amount of intake air on the basis of an internal temperature of each of the computers, the apparatus comprising: a memory for storing first information including a layout relationship between the air transfer grilles and the racks; a determining unit configured to: determine a plurality of target grille air volumes of air blowing to the racks, determine a plurality of simulation air volumes of air blowing from the air transfer grilles on the basis of the plurality of target grille air volumes of air and the first information stored in the memory so that each of the target grille air volumes of air is blown to each of the racks, and determine a plurality of grille aperture ratios of the air transfer grilles on the basis of the plurality of simulation air volumes of air so that each of the amounts of air blowing from the air transfer grilles becomes equal to each of the simulation air volumes second target; and a controller for controlling each of the grille aperture ratios of the air transfer grilles on the basis of each of the determined grille aperture ratios of the air transfer grilles.