SDT (CEO Jiwon Yoon), a cooling solution company based on quantum standard technology, announced on the 5th that it was finally selected for the '2025 Data Center Industry Activation (Demonstration Support)' project hosted by the National IT Industry Promotion Agency (NIPA).
Through this project, SDT plans to verify the performance and stability of its self-developed immersion cooling system, AquaRack, in a real-world data center environment. Based on this experience, SDT plans to not only enter the domestic market but also actively expand its overseas business.
With the rapid increase in the use of high-performance GPU servers, cooling efficiency in data centers is emerging as a critical issue. In particular, existing air-cooling methods are facing limitations in handling high-heat equipment, which can reach 40-50 kW per rack. Accordingly, liquid immersion cooling is attracting attention for its ability to improve cooling efficiency, reduce power consumption, and reduce carbon emissions.
SDT's "Aqua Rack" cools servers by directly immersing them in non-conductive coolant, reportedly achieving 30-40% higher energy efficiency than air-cooled systems. Furthermore, it can improve the Power Usage Effectiveness (PUE) to 1.2 or lower, and is expected to reduce cooling power consumption and operating costs.
This demonstration will be conducted at a testbed within the Pangyo HPC Innovation Hub, operated by the Telecommunications Technology Association (TTA). SDT will operate a high-heat GPU server and plan to verify the cooling performance and stability of the Aqua Rack system through sensor-based real-time data collection and analysis.
Aquarack has designed and developed core components, including the Cooling Water Distribution Unit (CDU), sensors, and monitoring system, in-house. It also utilizes a non-conductive immersion fluid based on Poly Alpha Olefin (PAO), ensuring server stability. Furthermore, it integrates with SDT's cloud platform, enabling remote monitoring and intelligent anomaly detection.
Through this demonstration project, SDT aims to demonstrate the efficiency and practicality of liquid immersion cooling systems as an alternative technology that complements the structural limitations of air cooling. Furthermore, it aims to strengthen market competitiveness based on domestic technology. In particular, localizing components is expected to reduce dependence on imported equipment and positively impact the domestic industry ecosystem.
CEO Yoon Ji-won stated, “This project selection is a recognition of our immersion cooling technology,” and added, “We will successfully complete the demonstration so that this technology can become established as a technology that can increase data center energy efficiency and contribute to achieving carbon neutrality goals.”
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