Sou Hu Cai Jing·2025-09-25 15:48Core Viewpoint - The article discusses the growing importance of liquid cooling technology in data centers due to increasing power consumption and heat generation from AI server chips, highlighting the shift from traditional air cooling to liquid cooling solutions. Group 1: Liquid Cooling Technology Types - Liquid cooling technology is categorized into two main types: cold plate and immersion cooling, with cold plate cooling holding a 91% market share in 2022 due to its maturity and compatibility [3][31]. - Immersion cooling, while having the highest heat dissipation capability, accounts for about 8% of the market and is represented by companies like Shuguang Data and Guangdong He Yi [4][31]. - Cold plate cooling primarily uses water-based coolants, offering advantages such as low cost and fast heat dissipation [5]. Group 2: Cooling Liquid Material Systems - The main types of cooling liquids include water-based, oil-based, and fluorinated coolants [7]. - Water-based coolants are mainly used in single-phase cold plate cooling, supplied by companies like Compton and Unification [8]. - Oil-based coolants are used in single-phase immersion cooling, with suppliers like China Petroleum and Unification [8]. - Fluorinated coolants are crucial for high reliability and extreme physical conditions, with companies like Juhua and Dongyue Group achieving large-scale production [8]. Group 3: Microchannel Liquid Cooling Breakthroughs - Microchannel cold plate technology is becoming a focus for AI chip manufacturers, with companies like Nvidia and Microsoft pushing for MLCP standards [9]. - Domestic companies such as Highlan and Feirongda are gaining certifications and expanding their market share in this area [9]. Group 4: Market Size and Price Logic - By 2028, the global AI data center installation capacity is expected to reach 59 GW, corresponding to a cooling liquid demand exceeding 89,000 tons [10]. - The Chinese market for liquid-cooled data centers is projected to grow at a compound annual growth rate (CAGR) of 51.4%, with the industry scale expected to exceed 100 billion yuan by 2027 [10]. Group 5: Leading Projects - Major companies like Alibaba, Shuguang, Huawei, and Lenovo are implementing liquid-cooled data center demonstration projects, with Alibaba achieving a PUE of 1.12 in its 5A green liquid-cooled data center [14][15]. - Shuguang has realized the world's first large-scale commercial application of immersion phase change liquid cooling [15]. - Huawei's cloud data center in Ulanqab utilizes indirect evaporative cooling, achieving a PUE of 1.15 [16]. Group 6: Mainstream Cooling Pathways - The article outlines the mainstream cooling pathways, including water-based, oil-based, and fluorinated cooling liquids, emphasizing the rapid growth of the liquid cooling market [18][21].