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Data Center Efficiency

How In-Row Cooling Increases Data Center Efficiency

Cooling efficiency is a top priority for data centre operators today. Increased data centre density allows operators to provide more processing power in the same amount of space to meet the requirements of cloud environments and scope. 

As more electricity is consumed per rack however the heat becomes a major problem and air conditioning units in the traditional computer room (CRAC) are unable to keep up.

Most modern data centres have adopted some sort of transitional inclusion solution to minimize hot and cold air mixing. The tool racks in a cold aisle are placed in rows with their fronts facing the closed aisle to accommodate the cold entry air.

 Hot air behind The equipment is exhausted into the room which becomes a large plenum of hot air.

A hot-pass cooking system reflects this approach - the back of the shelves faces the aisle that contains the hot air and depletes it into a recessed ceiling space return system or computer air handler (CRAH). 

Braking in a hot aisle is more effective than containing a cold aisle because it leverages the fact that hot air rises. It also creates a more comfortable environment for data centre staff and non-laid equipment.

Either way, the aisle braking allows the cooling systems to be set to a higher temperature while maintaining a safe operating temperature for the equipment.

 It also minimizes the risk of hot spots and reduces the need for moisture and dehumidification. All this reduces costs by reducing power consumption.

However, inserting the aisle with a CRAC unit is not as efficient as in-line cooling. As the name implies in-line cooling places a cooling unit directly in the rack of racks. The unit may be hung from the ceiling that rests on a closet or is installed on the floor. 

Because the refrigeration unit is closer to the cold air equipment one does not have to travel farther and the heat can dissipate faster. You can use in-line cooling to add room cooling or install it in a closed-loop array with a cold insulation case.

In-line cooling units may use cooling or cool water and incorporate fans to distribute the cold air. The state-of-the-art units have a built-in intelligence that varies in cooling and cooling speeds and fan speeds depending on the load.

There are several cases used for in-line cooling. It may be used for a laboratory environment within a data centre or to provide more efficient cooling to the customer in a common location facility. 

In-line cooling is also ideal for particularly crowded environments, especially those that use power-hungry GPU clusters for machine learning and other artificial intelligence applications.

In-line cooling units should be designed to meet the customer’s requirement for a higher capacity to handle today’s heat loads. These units must fit comfortably in any data centre environment to provide maximum cooling capacity.

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