Shulou(Shulou.com)11/24 Report--

CTOnews.com, August 17, China Reserve official announced that recently, China has made a major breakthrough in the research and development of compressed air energy storage system. The first international 300MW-class advanced compressed air energy storage system expander jointly developed by the Institute of Engineering Thermophysics of the Chinese Academy of Sciences and the China Reserve National Energy Corporation has completed the integration test and has been successfully offline.

According to the video number of national energy storage in the ▲ map source, energy storage technology is the key supporting technology of the energy revolution and national strategic emerging industries. Compressed air energy storage has the advantages of large scale, low cost, high efficiency and environment-friendly, so it is one of the most potential large-scale energy storage technologies.

Expander is the core component of compressed air energy storage system, which has high load, large flow, complex flow and heat transfer, high efficiency and wide operating conditions. After years of unremitting efforts, the R & D team has successively conquered the key technologies such as full three-dimensional design, complex shafting structure, dynamic adjustment and control, and developed the first international 300MW class advanced compressed air energy storage system multi-stage high-load expander with completely independent intellectual property rights.

China Reserve Guoneng said that on August 1, 2023, the Institute of Engineering Thermophysics of the Chinese Academy of Sciences and the China Reserve Guoneng Company completed the integrated test of the 300MW compressed air expander, and the test results reached or exceeded the design target, with the advantages of high integration, high efficiency, fast start and stop, long life, easy maintenance and so on. The successful development of the 300MW compressed air expander is an important milestone in the field of compressed air energy storage in China, and promotes China's advanced compressed air energy storage technology to a new level.

As previously reported by CTOnews.com, the Institute of Engineering Thermophysics of the Chinese Academy of Sciences has carried out the first research on compressed air energy storage technology in China since 2004. after 19 years of efforts, on the basis of successfully developing the first international 1.5MW and 10MW advanced compressed air energy storage national demonstration project, it has broken through the 100MW advanced compressed air energy storage key technology and built the world's first 100MW advanced compressed air energy storage national demonstration system. And successfully connected to the grid on September 30, 2022, setting a new milestone in the industry.

Less than a year later, the expander of China's 300MW advanced compressed air energy storage system went offline smoothly. compared with the 100MW advanced compressed air energy storage system, the scale of the 300MW system will be increased by three times, the unit cost will be reduced by 20-30%, and the efficiency will be increased by 3-5%. The 300MW advanced compressed air energy storage system expander completed the integration test and went offline smoothly, marking the first set of international 300MW advanced compressed air energy storage national demonstration project to make significant progress.

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