On January 13, a spray-type evaporative cooling supercomputer (QSC-1), developed by the Institute of Electrical Engineering, Chinese Academy of Sciences, for the Computer Network Information Center, successfully passed a 72-hour Linpack test. This marks a significant milestone in the practical application of spray evaporative cooling technology, transforming scientific research into industrial products and setting a new precedent for high-efficiency phase-change cooling in supercomputing.
ShenTeng 7000, as China’s first heterogeneous cluster system with actual performance exceeding one petaflop, serves as a key computing resource for the Chinese Academy of Sciences’ supercomputing environment and a major node in the North China Grid. As computational demands grow, ensuring the safety and efficiency of its high-performance nodes becomes increasingly critical. To support future scientific computing and cloud-based applications, upgrading the cooling system of the ShenTeng 7000 has become an urgent priority.
Supported by the Chinese Academy of Sciences, the Evaporative Cooling Research Team at the Institute of Electrical Engineering redesigned the cooling system by eliminating all fans and installing a spray evaporative cooling system tailored to the heat distribution and structure of the supercomputer. Two cabinet-style spray evaporative cooling supercomputers were successfully tested for over 72 hours, achieving a PUE of 1.29—40% lower than the best global supercomputer center values. This represents a major breakthrough in energy-efficient cooling solutions.
This innovation has significantly reduced noise pollution caused by traditional air-cooled systems. Compared to conventional cooling methods, the system offers higher cooling efficiency, uniform temperature control, lower noise levels, reduced power consumption, and improved reliability. It provides a cutting-edge green thermal management solution for high-performance computing environments.
Beyond supercomputers, the team has also developed immersion self-circulating evaporative cooling systems for high-end servers and even adapted it for use in PCs and high-end graphics cards. These advancements further reduce energy consumption in cooling. The evaporative cooling technology has been successfully applied in various industrial sectors, including special motors, turbine generators, transformers, rectifier systems, and frequency converters. Its advantages in efficient cooling, balanced temperature control, reliability, and energy savings have made it a preferred alternative to traditional cooling solutions in China.
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