Patent ID: 11903173
Assignee: BAIDU USA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An airside economizer cooling system for data center, the system configurable and operable in different modes according to ambient air temperature and ambient air quality, the system comprising:
a mixing module, an evaporative cooling module, and an air supply module, attached to each other and having air passages there-between;
a plurality of blowers, each attached to one of the mixing module, the evaporative cooling module, and the air supply module;
a plurality of motorized louvers, at least one motorized louver attached to each one of the mixing module, the evaporative cooling module, and the air supply module, wherein a first air passage between the mixing module and the evaporative cooling module includes a first motorized louver and a second air passage between the evaporative cooling module and the air supply module includes a second motorized louver;
a heat exchanger positioned within the evaporative cooling module;
return air channel having fluid opening to the mixing module; and,
a controller receiving ambient air data and using the ambient air data to control the cooling system to alternatingly operate in one of: direct mode delivering ambient air directly to a load, indirect mode delivering ambient air to the heat exchanger, mixing mode delivering ambient air to mix with return air delivered by the return air channel, and hybrid mode delivering ambient air partly to the heat exchanger and partly to the load.