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On the 21st, the reporter learned from the Institute of Engineering Thermophysics of the Chinese Academy of Sciences that the institute has made significant progress in the research and development of compressed air energy storage systems and completed the integration test of the world's first 100 MW advanced compressed air energy storage system expander.
Energy storage technology is the supporting technology of the energy revolution and a national strategic emerging industry. Compressed air energy storage has the advantages of large scale, low cost, high efficiency, and environmental friendliness. It is one of the most promising large-scale energy storage technologies. The Institute of Engineering Thermophysics of the Chinese Academy of Sciences is the earliest institution in China to carry out compressed air energy storage research. After 15 years of hard work, it has established a research and development system with completely independent intellectual property rights, which has successively broken through the system's full-condition design and control, and multi-level high-load Key technologies such as compressors and expanders, high-efficiency supercritical heat storage and heat exchange. "Since 2017, we have taken the lead in the international R&D of 100-megawatt advanced compressed air energy storage systems." said Chen Haisheng, a researcher at the Institute of Engineering Thermophysics, Chinese Academy of Sciences.
The expander is the key core component of the compressed air energy storage system. It has technical difficulties such as high load, large flow, complex flow and heat transfer coupling, and difficulty in variable operating conditions. After years of unremitting efforts, the R&D team has successively overcome key technologies such as multi-stage expander full three-dimensional design, complex shafting structure, variable working condition adjustment and control, and developed the world’s first 100 MW advanced compressed air energy storage system. Class high load expander. The expander has the advantages of high integration, high efficiency and long life.
Chen Haisheng said that the processing, integration and performance testing of the 100 MW expander has been completed, and all the test results are qualified and meet or exceed the design indicators. The successful development of this expander is an important milestone in the field of compressed air energy storage in my country, and has promoted my country's advanced compressed air energy storage technology to a new level. (Reporter Lu Chengkuan)
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