Cold Aisle Containment

Cold Aisle Containment:

What is Containment? Placing isolation barriers at the front, back, and top of the aisles to eliminate cold air loss and to stop hot air from penetrating into the cold aisle. The reduction in air mixing increases the return air temperature to the CRAC units, raising the delta-T across them which results in more efficient cooling. The isolation also eliminates hot spots and makes the supply air temperature more uniform across the server inlets. This increases reliability while allowing the supply air set points to be safely increased.

Cold Section for mastering the two biggest challenges in computing centers:

	Avoiding so-called “air short circuits”(warm and cold air mixing together)
	Preventing high losses of cold air

Arguments:

	Economical solution

	Scalability of additional cooling (e.g UNIQLE or side collers)

	Raised floor makes cooling capacity adaptable

	Easy assembly


	Datasheet -Front Cooler	595 KB	564 KB

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Cold Aisle Containment:

Cold Aisle Containment (CAC) is simply separation of the warm and cold air. Via a false floor the cold air is introduced from below into a cold aisle from where the electronic devices are provided with cold air. The cold air flows through the cabinets and transports the dissipated heat from the servers. Hot air is expelled at the rear of the cabinet / rack and can be removed for example by an air conditioning system.

Cold Aisle Containment avoids hot air short circuits, thus improving the efficiency of the cooling system considerably and therewith contributing to energy cost savings.

	Cooling for cabinet loads up to 20 kW using traditional under floor cooling
	Improve cooling efficiency 40-55%
	Retrofit to existing cabinets with little disruption and no down time


Data Center with 400 kW heat load is severely underserved by two CRAC units creating major temperature problems	Same Data Center after fully containing the cold aisles creating ideal temperatures for servers without having to increase cooling capacity

Green Cooling Front Cooler®:

	In Row Technologie
	No raised floor needed
	Width of 300mm or 600 mm
	Presure controlled
	EC-Technologie
	Water and DX version
	Extra developed for Cabinet-Cooling
	Power consumption high effecient

The FrontCooler system foresees the in row installation of air conditioners with horizontal air flow. This implies the evident advantage of being closely control the so-called hot spots (localized heat sources) making the installation suitable to the follow the real need of the server farm. The other big advantage is the modular system feature, that allows a quick and economic fine tuning of the plant layout, every time its needed, in accordance with the changed requirements of the installation.

Hot ailse / Cold aisle in the working logic of the FrontCooler system. Practically the rows of the racks are arranged in order to obtain alternated hot aisle and cold aisle. In the hot aisles the racks discharge the hot air used to cool the electronic devices while the FrontCooler suck the hot air to be cooled. In the cold aisle the FrontCooler discharge the filtered and cooled air while the racks sucks the cold air for electronic device cooling.