A fan tray is an enclosure that combines high efficiency cooling fans or blowers and intelligent controllers to cool a server cabinet. Custom fan trays can be positioned in different areas of the server cabinet to control the heat generating from the server units.
The following is a study of how a cooling fan or blower in a custom fan tray assembly is positioned to maximize the thermal cooling of power supply modules.
Flow concept analysis of a fan tray
Telecom power supply rack with a cooling fan tray
The fan tray assembly modules will contain the axial fans for cooling the cabinet power supply modules. In addition, two NMB blowers are in charge of generating forced air cooling needed for the case components inside the telecom cabinet.
Fan tray assembly with axial fans and two NMB blowers
The fans are placed strategically in the fan tray for forcing cool air directly up to the power supply unit.
Through the designated intake location in the telecom cabinet, fresh air will be taken in and pushed by the axial fans through the heat sources and out the controller box area.
Telecom cabinet cooling air flow with swirl from fan tray inlet through the axial fans
Telecom cabinet cooling air flow visualization from inlet to outlet
The flow concept analysis above illustrates the importance of positioning the fan tray assembly to create an environment that will bring maximum direct cooling to the heat generating components found in a cabinet server unit.
The use of thermal simulation technology has become part of NMB’s design offerings, and has been proven to facilitate the design process of many of their customers by providing key information and solutions for several thermal cooling applications.