Rear Door Cooling Solutions
Coldlogik Rear Coolers allow supply water temperatures to rise from the traditional 6°C for CRAC systems to between 14°C-24°C, reducing chiller size and energy costs. They also increase the availability of “free cooling”, delivering up to the ASHRAE maximum 27°C (2013) room temperature.
From their earliest days, air conditioning systems were designed to remove between 1 and 3 kW per cabinet. The ability to remove heat from cabinets by some form of air conditioning is limited to 20 kW – and while the heat omitted from standard cabinets is probably only 7 to 10 kW, within the next couple of years, as processors become even faster, this is expected to rise to an average of 15 kW per cabinet. With the increase of working temperatures of servers, anything above this will require a water cooled rear door.
With the drive towards cloud computing and virtualisation, the Coldlogik Rear Door Cooler – with its ability to remove large heat loads, typically 24 to 30 kW – allows several powerful blade servers to be held in one cabinet, reducing the real estate required. A new style blade server, which only takes up 6U of a potential 48U cabinet, will itself produce up to 6 kW. Super computers can produce up to 45 kW – and we are now being asked by certain military and research establishments to cool cabinets generating up to 58 kW of heat.
The Aqua Cooling system also allows the design, installation and operation of high density data centres with highly critical services to use ambient air only – no refrigeration – so enabling them to become virtually zero carbon emitters from a cooling perspective.
We offer a range of external cooling options, including chillers, cooling towers & adiabatics, as well as natural resources such as river, lake & sea water and boreholes.