As increased computer-power density generates more heat, facility managers are looking to innovative cooling technologies to keep their equipment safe when data centers run at higher temperatures.
A comparatively new technology on the market is the enthalpy wheel, which does not mix the air outside and inside the data center. The wheel is particularly suited for high-density environments with high operating temperatures, since response time to load fluctuations is rapid.
The heat-transfer wheel has been tested on density of up to 40,000 watts per cabinet and responds more quickly than chilled water does to additional heat sources. The wheel can react in a matter of seconds at temperatures of 70 degrees or less. At higher temperatures, a supplemental cooling system chills air for the wheel, which is 20 feet in diameter and 3 feet thick and spins at 1 to 3 RPMs.
Another approach to increasing power density is to build data centers in dry, low-humidity climates and use adiabatic cooling. This technology put cool water into dry air, which then evaporates and lowers the temperature. Adiabatic cooling is being used in dry climates in high desert areas with an average humidity of 30 percent, such as in the Pacific Northwest.
Go here for more information on how data center and facility managers are using innovative cooling technologies to safely maintain data centers at higher temperatures.