| 摘要 |
Systems are provided for cooling data centers based on a cooperative system including a plurality of Indirect Air-Side Economizers, also referred to as Recirculation Air Cooling Units, that are advantageously operated in conjunction with one or more Side Stream Filtration Units or filters inclusive to a portion of the IASE/RACUs, and one or more Make-Up Air Dehumidification/Humidification Units for the introduction of ventilation air and control of humidity within the enclosed space. An objective of the systems according to this disclosure is to provide the necessary rejection of heat, removal of particulate from the air, and control of the absolute moisture content of the air within a data center. |
| 主权项 |
1. A system for cooling an enclosed space, comprising:
a plurality of air cooling devices, each air cooling device including an air-to-air heat exchanger and first and second air flow paths,
the first air flow path including a first inlet through which outside air is drawn, a first segregated flow path through the air-to-air heat exchanger and an exhaust outlet through which the outside air heated in the air-to-air heat exchanger is exhausted outside each air cooling device as exhaust air, air flow through the first air flow path being driven by at least one scavenger air exhaust fan on an outlet side of the air-to-air heat exchanger in the first air flow path, andthe second air flow path including a second inlet through which warm air from the enclosed space is drawn as return air, a second segregated flow path through the air-to-air heat exchanger and a supply outlet through which the return air, cooled in the air-to-air heat exchanger, is supplied back to the enclosed space as supply air at a temperature that facilitates cooling of the enclosed space, air flow through the second air flow path being driven by at least one recirculating air fan on an inlet side of the air-to-air heat exchanger in the second air flow path; at least one air filtering device that is a separate device from the plurality of air cooling devices, or is included in only a portion of the plurality of air cooling devices, and that filters only a portion of the return air from the enclosed space; and at least one ventilation air introducing device that is a separate device from the plurality of air cooling devices and the at least one air filtering device and that includes a heat pipe and at least one fan for introducing outside air into the ventilation air introducing device, wherein during operation of the ventilation air introducing device in a humidification mode, the outside air travels through a first section of the heat pipe and the return air travels through a second section of the heat pipe, and the outside air and return air having traveled through the heat pipe in the same direction are subsequently mixed in a mixing chamber before exiting as ventilation air. |
