In an airflow control system in a machine room where a plurality of ICT device groups (3a to 3f) is supplied with cold air blown out from a plurality of air conditioners (2a to 2c) an is cooled via an underfloor space, the airflow control system includes a partition that is openable and closable (4a to 4f) provided for each air conditioner in the underfloor space, and a controller that opens, when occurrence of an abnormality is detected in an air conditioner of the plurality of air conditioners, the partition between the air conditioner with the occurrence of the abnormality detected and another air conditioner adjacent to the air conditioner.

An air conditioning system of the present disclosure includes: sensors disposed on a plurality of openings connecting an underfloor space of a double floor and an upper side of the double floor; a wing that is disposed in the underfloor space under the opening and is configured to divert an air flow direction in the underfloor space by changing a slant angle of the wing; and a control device that is configured to acquire ideal values set in a plurality of the sensors, acquire actual measurement values from the plurality of sensors, calculate an average error from a difference between each of the ideal values and each of the actual measurement values, and change the slant angle of the wing to reduce the average error.

A UFAD system with bifurcated air towers. The air towers are bifurcated in the sense that the air columns are fan-less and coil-less, and fans for delivering pressurized air to the air columns, and hence to the underfloor plenum of the UFAD system, are in overhead ceiling air ducts and spaced away from the air columns. Cooling coils could be located in a remote air handling unit that feeds conditioned air to the overhead ceiling air ducts to be pressurized by the fans.

An air diffuser configured to be positioned in a raised floor, in which the air diffuser includes a sleeve having a first end and a second end with an air flow passage extending through the sleeve from the first end to the second end, a diffuser face disposed at the first end of the sleeve and configured to be exposed to an environment in an installed position within the raised floor, a damper disposed at the second end of the sleeve, and a plenum chamber defined within the sleeve between the damper and the diffuser face.

According to one example of the present invention, a cooling system is provided. The cooling system comprises a water-cooled air conditioning module for cooling air from a chamber. The chamber is arranged for receiving air to be cooled and hot humid air. The cooling system also comprises a control system for controlling the flow of hot humid air to the chamber such that the air input to the air conditioning module has a predetermined relative humidity level within a predetermined range.

A heat dissipation system for cabinet servers supported on a raised floor includes a condenser, airflow adjusting apparatus, a controller, and a temperature sensor located at an air outlet of each cabinet server. The raised floor defines air outlets adjacent to each cabinet server. The adjusting apparatus are mounted to the raised floor and aligning with the air outlets. Each of the airflow adjusting apparatus includes a number of shielding members rotatable relative to the raised floor and aligning with the air outlets, and a motor electrically coupled to the controller. The temperature sensors are electrically coupled to the controller. The condenser generates cool air entering the raised floor through the air inlet, to enter the cabinet servers through the airflow adjusting apparatus and the air outlets. The controller controls the shielding members to rotate, to change the opening size of the air outlets of the raised floor.

A ventilated flooring system may generally include a base, a substructure, a top surface, a control box, an air mover, and a sensor. The base, the substructure, and the top surface may form a floor within which the sensor is disposed. The sensor may measure properties of air within the floor, sending measurements to the control box. The control box may activate and deactivate the air mover based on measurements from the sensor and control logic. In some examples, the air mover is connected to an HVAC system and routes air output from the HVAC system into the floor. Further, the ventilated flooring system may also include a second sensor for measuring ambient air, an alarm for providing notice of malfunctions, and/or networking capability that allows for remote monitoring of the system.

Disclosed is the redirection of air flow in a sub-plenum using a multi-directional plume that is attached to the bottom surface of an air-grate floor panel. The air-grate floor panel 102 has openings which allow redirected air to flow in an upward direction to cool computer equipment, including servers. The multi-directional plume has a series of vanes that are disposed in various different directions to deflect a flow of air conditioning air through a sub-plenum in a vertical direction to flow through openings in the air-grate floor panel. Since the multi-directional plume is capable of redirecting air from various different directions in the sub-plenum, the air-grate floor panels do not have to be repositioned to capture air flow from any particular direction.

A floor system for detecting refrigerant includes one or more tiles. Each tile includes a tile body having a cavity formed therein and a grille element positioned within the cavity of the tile body. The grille element is configured to receive air from at least one of above or below the tile body. Each tile further includes a control assembly associated with the grille element. The control assembly includes a refrigerant sensing device to detect refrigerant in the received air. The control assembly is configured to output a signal indicating a detection of refrigerant.

An air diffuser configured to be positioned in a raised floor, in which the air diffuser includes a sleeve having a first end and a second end with an air flow passage extending through the sleeve from the first end to the second end, a diffuser face disposed at the first end of the sleeve and configured to be exposed to an environment in an installed position within the raised floor, a damper disposed at the second end of the sleeve, and a plenum chamber defined within the sleeve between the damper and the diffuser face.