数据中心风侧经济器节能分析

Study on Energy-Saving Design of Air-side Economizer in Data Centers

风侧经济器是通信机房中常用的节能装置，具有初投资低和降低湿度控制费用的优点。本文根据风侧经济器的运行特点，结合我国五个不同气候区的典型城市气象参数，对风侧经济器进行节能分析。结果表明，风侧经济器较适用于温和气候区，其理论相对可利用时间比夏热冬暖地区高1倍，冬季加湿量比夏热冬冷地区、寒冷地区或严寒地区少4～7倍。本研究为数据中心的空调系统节能设计提供合理的解决思路，从而降低机房运行费用。

The air-side economizer is the frequently-used energy-saving device in telecommunication room with the advantages of low initial cost and low fees for humidity control. Combined with the operational features of the economizer, and each typical urban meteorological parameter in five different climatic zones, the energy-saving performance of the air-side economizer was analyzed. The results .indicated that the air-side economic was more applicable in mild climate, as the using time in mild climate was 1 times higher than that in hot summer and warm winter zone. It also dedicated that the need humidification amount in mild climate zone was 4- 7 times lower than that in hot-summer and cold-winter zone, cold and severe cold zones. This study provides reasonable solution ideas for designing air-conditioning system in the high heat density data centers, and makes energy-saving mentoring programs to reduce the initial investment on air-conditioning systems and its operating cost.