A brief about Liquid Cooling jointly issued by ODCC、C2E2& ITU
Recently, ODCC(Open Data Centre Committee), UDP ( UNEP DTU Partnership) Copenhagen Centre on Energy Efficiency, ITU(International Telecommunication Union) jointly issued a brief named Innovative Data-Centre Cooling Technologies in China-Liquid Cooling Solution ,introducing the development and application of liquid cooling technology in China’ data centres.
Figure- Cover and key messages of the brief
After the signing of MoU between the Cloud Computing & Big Data Research Institute of CAICT (China Academy of Information and Communications Technology) and Copenhagen Centre on Energy Efficiency, UNEP DTU Partnership in early 2020, two parties have started cooperation on green data centres. In addition to Cloud Computing & Big Data Research Institute of CAICT, top domestic Internet companies such as Alibaba, Tencent, Baidu, Meituan were involved in brief preparation relying on ODCC，sharing their research, applications and future plans of liquid cooling respectively.
Figure-Publicity form Copenhagen Centre on Energy Efficiency
Figure-Publicity form ITU
With the continuous integration and progress of complex services, computing tasks faced by data centres are becoming more and more complex. To improve and optimize efficiency, IT equipment in data centres developed rapidly and the power density increased subsequently, which brought the "intractable" problem of heat dissipation. In recent years, liquid cooling technology has developed rapidly in China with its advantages of high efficiency and energy conservation. Among them, the main technology routes such as cold plate system and immersion liquid cooling have developed commercial cases, which brought a new revolution in data-centre refrigeration system.
In the brief, immersion liquid cooling clusters of Alibaba Winter Olympics data centre and the cold plate system of Tencent micro-module data centre were illustrated with pictures and texts, both of which are currently pioneered in China for commercial use of liquid cooling data centres. It is worth mentioning that Alibaba open-sourced its liquid cooling data centre specifications with ODCC in January 2020, hoping to develop open standards for large-scale cloud-oriented data centre infrastructure with industry partners with the goal of establishing liquid-cooled data centre ecosystem jointly. Tencent, JD.com, and Meituan are also conducting research on liquid cooling at ODCC.
Figure-Alibaba Zhangbei Data Centre Liquid Cooling Centre
Figure-Tencent Liquid Cooling Data Centre
It was mentioned in the brief that policies and sustainability assessment tools have been introduced to regulate and monitor data centre energy consumption in China, the Assessment of data centre sustainability rating (http://www.odcc.org.cn/green.html) jointly conducted by ODCC (Open Data Centre Committee) and TGGC (the Green Grid Committee) are presented. In the past eight years since the assessment was carried out, it has been unanimously approved by large Chinese data centre operators such as Tencent, Baidu, Alibaba, China Telecom, China Mobile, GDS, ByteDance, Dr. Peng Group, CICC, China Unicom, Yovole and other large data-centre users and service providers in China.
Figure- Assessment of data centre sustainability rating
Opportunities and challenges coexist. The brief pointed out that liquid cooling still faces many challenges and urgently needs to be improved in terms of strengthening industry guidance, standardizing the evaluation system and improving the industrial ecology.The brief recommends strengthening international collaboration and further developing the liquid cooling industry and its talent pool.
“He who has a long way to go, does not choose to rest”, ODCC (Open Data Centre Committee) and Cloud Computing & Big Data Research Institute of CAICT (China Academy of Information and Communications Technology) will make best ongoing effort with significant strength, enhance cooperation with International renowned organizations such as Copenhagen Centre on Energy Efficiency, UNEP DTU Partnership and ITU, promote the development of data centre liquid cooling technology in China and worldwide. Furthermore, being eager to contribute to the United Nations Sustainable Development Goals on climate and energy.
Thank the following authors for their contributions for the drafting and successful publication of this brief:
Jie Li, China Academy of Information and Communications Technology(CAICT), Cloud Computing & Big Data Research Institute, deputy director
Xiao Wang, Copenhagen Centre on Energy Efficiency, UNEP DTU Partnership
Liang Guo, CAICT, Cloud Computing & Big Data Research Institute, deputy chief engineer
Lina Xie, CAICT, Cloud Computing & Big Data Research Institute, senior manager ofData Centre Department
Shanyuan Gao, Alibaba Group, Infrastructure Architecture Department, chief architect
Fangyi Mei, Shenzhen Tencent Computer Systems Co., Ltd, IDC Platform Department, senior IDC architect
Hongtao Zhu,Beijing Sankuai Technology Co., Ltd, Infrastructure Technology Unit, director of Server R&D Department
Zhiming Luo, Baidu.inc, SYS, senior system engineer