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How Cloud Data Centers Can Improve Inlet Air Temperatures

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January 18, 2013

How Cloud Data Centers Can Improve Inlet Air Temperatures

By Erin Harrison, Executive Editor, Cloud Computing


For modern data centers to be successful, they must implement a sustainable cooling system design that follows industry best practices.

A recent Panduit whitepaper explored the importance of improving inlet air conditions.

“Network switches deployed in data centers often utilize side-to-side airflow cooling, which requires less vertical space and increases port density,” the whitepaper explained. “Given proper inlet air conditions, these switches are well designed to cool themselves. However, large bundles of cabling can impede airflow and hot exhaust air can re-circulate to the intake, raising inlet temperatures and inhibiting the switches’ self-cooling ability.”


Panduit’s Net Access In-Cabinet inlet duct system offers benefits such as improved space utilization, reduced fan energy consumption and an optimized cooling air flow for contained deployment.

As the whitepaper explained, switches are designed to cool themselves over a prescribed range of conditions, usually from zero degrees Celsius to 40 degrees Celsius. However, the nature of side-to-side airflow in typical hot/cold aisle installations can have negative effects on the conditions of the switch outlet.

Panduit said a best practice in cloud data centers using cabinets is to physically separate cool supply air from heated exhaust air.

“This can be done both inside and outside of the cabinet. Inside cabinets with front to rear airflow, barriers are formed from blanking panels and structures such as vertical air dams which are typically placed in line with the front equipment rails,” the whitepaper said. “With side-to-side airflow switches, this approach to separation will block access to cool air, allowing inlet air to be drawn from the rear of the cabinet and the hot aisle into the switch inlets.”

Panduit’s Net Access In-Cabinet inlet duct system consists of inlet ducting, which delivers cool air directly from the cold aisle into the intake fans of the switch, allowing for proper cooling for improved network performance and availability.

In summary, the company’s in-cabinet duct system is made up of thermal products that provide the optimum thermal performance as well as energy savings.

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Edited by Rachel Ramsey







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