Heat Exchanger eliminates hotspots in data centers.
November 12, 2009 -
Mounted in moveable door, which is fixed to frame attached to rear of rack, Liebert XDR removes heat from IT racks before it enters data center. Microchannel unit relies on server fans for hot air movement across cooling coil, utilizing pumped refrigerant which eliminates danger of equipment damage from water leakage. Accommodating new and existing racks, Liebert XDR cools up to 20 kW of rack load, even in environments that are not arranged in hot aisle/cold aisle configuration.
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|Original Press Release |
Emerson Network Power
8000 W. Florissant Avenue, Bldg. AA
St. Louis, MO, 63136
Emerson Network Power Unveils New Fan-less Cooling Solution for Eliminating Hotspots in Data Centers and Enabling Higher Densities
Columbus, Ohio [November 5, 2009] - As data center managers strive for new ways to design and support higher densities in smaller spaces, Emerson Network Power, a business of Emerson (NYSE: EMR) and the global leader in enabling Business-Critical Continuity(TM), has introduced the Liebert XDR, an innovative rear-door heat exchanger that removes heat from IT racks before it ever enters the data center. Throughout the past year, a version of the product was used exclusively by Sun Microsystems as the SCD5600. The product is now available globally.
The Liebert XDR microchannel heat exchangers are mounted in a moveable door, which is fixed to a frame attached to the rear of the rack. It relies on server fans for hot air movement across a cooling coil, utilizing a pumped refrigerant that is 700 percent more efficient at removing heat than water. The pumped refrigerant also eliminates any danger of equipment damage from water leakage. Air exits the Liebert XDR at approximately the same temperature as the air entering the front of the rack, neutralizing the heat created by the servers.
"Because the Liebert XDR cools the air exiting the rack before it enters the room, there is no need for fans to move heat across the room to wall or floor-mounted cooling systems," said Bob Blough, director of product marketing, Liebert precision cooling, Emerson Network Power. "Eliminating the cooling fans makes it possible for businesses to realize energy savings of 35 to 48 percent compared to perimeter cooling - let alone the capital cost savings from not needing to expand or build a new facility."
Able to accommodate both new and existing racks, the Liebert XDR is designed to cool up to 20 kW of rack load, even in environments that may not be arranged in a hot aisle/cold aisle configuration. The sleek construction of the Liebert XDR allows the entire cooling unit to be less than six inches deep. The door opens more than 100 degrees, for full access to the internal servers and other equipment, and allows for side-by-side placement of racks in open and closed positions.
Uniquely, the Liebert XDR includes a flexible connection of hard-piped, pumped-refrigerant lines through the rack door's hinge pivot points, which enables it to be robust and leak-free through more than one million repeated door openings and extended periods of time with no movement. These overhead piping connections are completely static - no moving components will interfere with opening or closing the door. Pumped refrigerant from a Liebert XDP or Liebert XDC enters the fixed frame and passes through an innovative hinge to the door. The Liebert XDR can be utilized with existing Liebert XD installations, using the same flexible connections and hard piping.
The Liebert XDR technology was first previewed at Supercomputing 2008, where it was an integral part of Sun Microsystems' Cooling Door system that fit in the rear of the Sun Blade 6048 modular system.
For more information on the Liebert XDR, or any other Liebert technologies and services from Emerson Network Power, visit www.liebert.com.
About Emerson Network Power
Emerson Network Power, a business of Emerson (NYSE:EMR), is the global leader in enabling Business- Critical Continuity(TM) from grid to chip for telecommunication networks, data centers, health care and industrial facilities. Emerson Network Power provides innovative solutions and expertise in areas including AC and DC power and precision cooling systems, embedded computing and power, integrated racks and enclosures, power switching and controls, monitoring, and connectivity. All solutions are supported globally by local Emerson Network Power service technicians. Liebert power, precision cooling and monitoring products and services from Emerson Network Power improve the utilization and management of data center and network technologies by increasing IT system availability, flexibility and efficiency. For more information, visit www.liebert.com, www.emersonnetworkpower.com or www.eu.emersonnetworkpower.com.
Emerson (NYSE:EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2008 were $24.8 billion and Emerson is ranked 94th on the Fortune 500 list of America's largest companies. For more information, visit www.Emerson.com.