Discussion on outdoor air cooling energy saving technology of data center in temperate zone

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.