Read Panduit’s Maximizing Cooling Efficiency With Effective Cabinet Sealing White Paper! A typical data center consumes an average of 5-7kW of power per cabinet. However, it also has individual cabinets or zones with significantly higher thermal loads. This can lead to overcooling of the entire data center and an inflation in energy costs.
Anticipating the impact of the trend toward higher densities, data center managers are increasingly using air containment systems to manage higher thermal loads. In an air-cooled data center, containment systems are used to effectively separate cold air from hot exhaust air to reduce the cooling system energy consumption. Containment systems such as cold aisle containment and hot air containment (vertical exhaust ducts) prevent mixing of cold and hot air streams and enable cooling system energy savings of up to 40%.
Leakage is air that escapes through structural gaps and holes between and through mounting rails, cable management devices, blanking panels, and equipment. Cabinet leakage can adversely affect thermal efficiency by increasing cooling energy usage and its associated costs. In a Cold Aisle Containment (CAC) system, leakage paths can result in cold air bypass whenever a sufficient pressure differential exists between the cold aisle and the hot aisle side of the containment system. The bypassed cold air mixes with the cabinet exhaust air and reduces the cooling unit return air temperature and its efficiency. In a VED cabinet, leakage paths can allow recirculation of hot exhaust air whenever there is a pressure differential that forces the hot exhaust air through the various gaps into the cold aisle. The recirculated hot exhaust air warms the cold aisle air to a temperature above the targeted room set point and can force the data center operator to lower the room set point temperature to maintain the desired equipment inlet temperature.
This type of recirculation within the cabinet is different from the row-level recirculation where hot aisle air recirculates to the IT equipment inlet over the top of the cabinet or around the end of a row, common in traditional hot/cold configurations. The net result is the same – higher inlet air temperatures. However…>>Read More