温和地区数据中心新风自然冷却节能技术探讨
Discussion on outdoor air cooling energy saving technology of data center in temperate zone
摘要：
分析了中美机房规范在环境要求上的差异。2011年版ASHRAE TC 9.9《数据处理环境热指标》既能满足机房安全制冷要求，又能满足自然冷却需求。参考该标准并以昆明为例，探讨了温和地区数据中心设计中可采用的节能措施。着重分析了利用室外新风自然冷却实现免费供冷。
关键词：数据中心,环境要求,温和地区,新风自然冷却,免费供冷,电源使用效率（PUE）,应急冷源
Abstract：
Analyses the differences of environmental requirements between Chinese and American data center standards. Thermal guidelines for data processing environment compiled by ASHRAE TC 9.9 in 2011 can meet two requirements of the safety refrigeration and natural cooling. Taking Kunming as an example, discusses the energy saving measures during the data center design in temperate zone. Analyses the free cooling measure using outdoor air cooling.
Keywords:data center, environmental requirement, temperate zone, outdoor air cooling, free cooling, power usage effectiveness (PUE), emergency cooling source