Patent ID: 9320177
Filing Date: 2016-04-19
CPC Classification: H05K

Claim Text:
1. A data center comprising: a room having a cold aisle and a hot aisle; a plurality of electronic components disposed between the cold aisle and the hot aisle, air in the room circulating through the plurality of electronic components from the cold aisle to the hot aisle; at least one air-to-liquid heat exchanger disposed between the hot aisle and the cold aisle, wherein the at least one air-to-liquid heat exchanger is filterless, there being no filters provided upstream or downstream of the at least one air-to-liquid heat exchanger; at least one first fan circulating air in the room at a first flow rate, the at least one first fan circulating air through the at least one air-to-liquid heat exchanger from the hot aisle to the cold aisle; and an air supply system fluidly connected to the room for supplying air from outside the room to the room and for pressurizing the room above an air pressure outside the room, the air supply system including: at least one air temperature sensor is disposed in the hot aisle for sensing an air temperature in the hot aisle; at least one first air pressure sensor is disposed in the hot aisle for sensing an air pressure in the hot aisle; and at least one second air pressure sensor is disposed in the cold aisle for sensing an air pressure in the cold aisle; wherein a speed of the at least one first fan is increased to increase the first flow rate such that the air pressure in the cold aisle is increased relative to the hot aisle when the air temperature in the hot aisle is above a predetermined temperature; and wherein the speed of the at least one first fan is decreased to decrease the first flow rate such that the air pressure in the cold aisle is decreased relative to the hot aisle when the air temperature in the hot aisle is below the predetermined temperature.