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A server room is a room, usually air-conditioned, devoted to the continuous operation of computer servers. An entire building or station devoted to this purpose is a data center . The computers in server rooms are usually headless systems that can be operated remotely via KVM switch or remote administration software, such as Secure Shell , VNC ...
Blue lines: flow of cold air; red lines: flow of warm air. Free air cooling systems uses external wind instead of traditional data-center computer room air conditioner (CRAC) units. [16] Although outdoor air still needs to be filtered and moisturized, much less energy is required to cool a data center with this method.
Rows of cabinets are paired to face each other so that the cool and hot air intakes and exhausts don't mix air, which would severely reduce cooling efficiency. Alternatively, a range of underfloor panels can create efficient cold air pathways directed to the raised-floor vented tiles. Either the cold aisle or the hot aisle can be contained. [73]
Air conditioning is used to control the temperature and humidity in the space. ASHRAE recommends a temperature range and humidity range for optimal electronic equipment conditions versus environmental issues. [8] The electrical power used by the electronic equipment is converted to heat, which is rejected to the ambient air in the data centre ...
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.
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