October 11, 2019, industry experts world-renowned green certification organizations USGBC multiple organizations (USGBC), as well as the Commission's green data center and other invited to Tencent Qingpu two data centers to witness its results of operations: under the influence of many energy-saving measures, Tencent Qingpu two data centers to achieve the annual PUE of 1.29 (January 1, 2018 - December 31, 2018). The lowest monthly PUE value reaches 1.24, the hottest monthly PUE value of 1.33 or less in control.
Note: The United States Green Building Council ( USGBC ) Green Building is one of the world's most influential organizations at present, it is committed to promoting the greening of the global construction industry. The launch of the LEED certification system is very authoritative in the current worldwide green building certification system.
Tencent Qingpu two data centers located in Shanghai Qingpu Economic and Technological Development Zone, in March 2017 and put into production. It is composed of Telecom and Tencent joint operations and common base for exploring the green data center practice. The current project was in 2018 with a score of 94.6 Uptime M & O by international certification. And in the same park Tencent Qingpu a data center, he won the 5A green data center certification issued by the Ministry of Industry and TGG in 2017. (Link "This time the circle crazy pass Tencent Qingpu 5A green data center, finally have the official presentation!")
So, Tencent Qingpu two data centers have exactly what energy saving measures, so that multi-agency industry experts USGBC (US Green Building Council) and the Commission's green data center such as its green eyes it?
1. lift cold end utilization: room server begins the wind source, through the air conditioning fan, cooler, and pumps the chilled water back to the cold heat transport. Holding the hot aisle temperature stability, and components of the device in a safe temperature, decreasing the amount of air-conditioning fan speed decreases, rationalization PID two-way valve is provided, so that the amount of chilled water to provide sufficiently cold, precise consumption, increased temperature difference between supply and return air ( to 10 deg.] C by a change in 14 deg.] C), the supply and return temperature difference tends to run cooler optimum value, the efficient use of cooling mechanisms delivering energy and cold water pump provided.
2. Effective local temperature and humidity control: using specialized dehumidifier lower energy consumption, and can be stable at room ASHARE absolute moisture content of the standard, to avoid cooling capacity for air conditioning latent heat dehumidification energy, the environment humidity has been effectively controlled, standardized strategies easier deployment. Local temperature is generally poor because of the cold source and heat isolation, due to the air volume and less. Blind 100% guarantee timely mounting plate, the gap around the cold aisle is timely closure base energy optimization.
3. To improve the efficiency and prolong the cold natural cooling time: when the cooling water temperature is effective to reduce 1 ℃, the cold energy can be reduced by about 3%. BA optimal adjustment of the equipment operating conditions correction factor and the most important priority of the bypass valve. In the spring and autumn, the parallel operation such that a plurality of cooling tower water is reduced, to improve the overall efficiency of the cold source. Centrifugal chiller higher COP ratio at low load, low freezing holding unit (pump delivery saving energy) based on the amount of redundancy refrigeration cold steadily increased chilled water supply temperature, to achieve the best overall COP equilibrium point, while extending the usable time of natural cooling.
Epilogue
With Beijing, Shanghai, Shenzhen and other cities have enacted data center construction guiding norm, "green intensive, stable and reliable, intelligent control" will be a key element of the future development of the data center. Tencent as a service to hundreds of millions of Internet users of technology, have a responsibility, an obligation, more confidence to explore a data center energy efficiency, stable and reliable green development.
More industry background
In early 2019, the Ministry of Industry, the State Government Offices Administration of the National Energy Board jointly issued the "Guiding Opinions on Strengthening the green data center construction," clearly put forward the construction of a green data center is an important task of building a new generation of information infrastructure is to protect resources and the environment can be ongoing basic requirements. Views that by 2022, Chinese average data center energy consumption basically reached the international advanced level. Followed by Beijing, Shanghai, Shenzhen and other cities have enacted data center construction guiding norm, with more explicit requirements for key indicators PUE (power usage efficiency) reflect the data center energy efficiency.
