In order to ensure the high availability of the air conditioning system in the data center, the availability, green energy saving and dynamic cooling are the future trends in the design of the cooling system.
The data center of the required availability is much higher than ordinary commercial buildings, such as air conditioning system; the availability requirements are generally divided into Grade A and B, need air conditioning system redundancy design, failure to have contingency plans; availability of decentralized traditional air-conditioning system is relatively high, redundancy, single the unit does not affect the normal operation of the data center; cold source system for large data center application, brings more challenges to the availability of multiple nodes need backup redundancy scheme design.
Green energy conservation
With the popular concept of green data center, green data center construction has the characteristics of energy saving and environmental protection has become the data center construction and use of the equipment supplier and the consensus; in low carbon trend, the data center need to make a difference; the refrigeration system is the power consumption of the data center, accounting for the energy consumption of the whole system 30%-45%, energy-saving refrigeration system by the hitherto unknown attention. Optimization of ventilation, hot channel layout, cold channel isolation, intelligent control, the outdoor natural cold source program has been showing the data center All flowers bloom together. phenomenon; and the use of heat recovery equipment to produce hot water, as life, bathing, swimming pool and other purposes, the whole system of low carbon consumption.
In terms of temperature and humidity, the temperature range of ASHRAE in version 2011 is recommended for 18 DEG -27 DEG relative humidity, the recommended humidity range of more than 5.5 DEG C dew point temperature is less than 60%, the relative humidity and the dew point temperature of 15 DEG C; relax the requirements to ensure the normal operation of the equipment at the same time, can reduce the energy consumption of heating, room cooling, humidification and dehumidification, reduce energy consumption and improve the energy consumption of air conditioning system.
In the energy saving room and air conditioning equipment, the application of variable capacity compressor, high efficiency EC fan, energy saving intelligent control and the use of natural cold source make the energy efficiency and adaptability of the air conditioning unit in the engine room more and more strong.
Attention to water has also gradually entered everyone's vision, WUE, water consumption and application of recycled water, rainwater applications in the design of data centers have been paid attention to.
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