【Major Industrial Equipment in the Chemical Industry】507—2022: The World’s First Carbon Dioxide Flywheel Energy Storage Pilot Project
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This post was last edited by Desert Fish on 2022-8-22 at 17:43. Have you ever seen a giant \"power bank\" that can be charged for two hours and store 20,000 units of energy? On August 22, within the premises of Dongfang Steam Turbine Co., Ltd., which is part of Dongfang Electric Group and located in Deyang City, Sichuan Province, there stood a blue-and-white-colored \"hill.\" At the foot of this \"hill,\" rows of factories, pipelines, and tanks were arranged in an orderly manner, forming what could be described as a \"power bank\" covering an area of about two and a half football fields. This is the world’s first demonstration project for carbon dioxide flywheel energy storage.
Energy storage involves converting excess electrical energy into other forms of energy during periods of low electricity demand, and then converting that energy back into electrical power during periods of high demand. Energy storage projects can not only compensate for the instability of clean energy but also supply power during peak demand periods, thereby ensuring the stable operation of the power grid and the proper supply of electricity for daily activities and production. This massive \"power bank\" developed by Dongfang Steam Turbine uses 250,000 cubic meters of carbon dioxide as a working fluid for charging and discharging; it can be charged with 20,000 kWh of electricity within two hours, enough to supply over 60 households for a month. Throughout the entire “charging and discharging” process, no fossil fuels are used, no solid waste is generated, and there is zero carbon emissions. It is reported that the flywheel in this \"power bank\" can, with the help of a bidirectional motor, enable the conversion between kinetic energy and electrical energy. The charging and discharging process is environmentally friendly, and its response time is extremely fast, reaching the millisecond level. At the same time, by combining the long storage duration and large capacity of carbon dioxide storage with the fast response speed of flywheel storage, this \"power bank\" can effectively smooth out fluctuations in the power grid, address intermittent issues, and ensure the safe operation of the grid. Compared to other energy storage forms, it has no electrochemical components. Its construction period is less than 2 years, and once completed it can be in use for 30 years continuously, with an efficiency level remaining above 60%. At the same time, the standardized modular design allows for the selection of different power levels according to requirements during construction. In a few days, this project will be showcased as one of the eight demonstration application scenarios at the World Clean Energy Equipment Conference.
It’s tough in the scorching summer heat! Keep up with heat prevention and cooling! Clarify the key tasks! Safety analysis must not be neglected! ---------------------------------------------- The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and localization of equipment. We invite everyone to share, discuss, and exchange ideas – let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ 【Major Chemical Equipment in a Major Country】Series summary post – being updated: https://bbs.hcbbs.com/thread-3366481-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
In October 2021, at the Bajiao Industrial Park of Dongfang Steam Turbine Co., Ltd., which is part of Dongfang Electric Corporation and located in Deyang City, Sichuan Province, BaiRang New Energy Technology (Shenzhen) Co., Ltd., Dongfang Steam Turbine Co., Ltd., and the School of Energy and Power Engineering at Xi’an Jiaotong University jointly held the inauguration ceremony for China’s first \"new type of carbon dioxide storage demonstration project.\" This event marked the beginning of the practical engineering application of this breakthrough storage technology in China. The reporter was informed that the basic principle involves using excess electricity during periods of low electricity demand to compress carbon dioxide gas at normal temperature and pressure into a liquid, while storing the heat energy generated during this compression process ； During peak electricity demand, the stored thermal energy is used to heat liquid carbon dioxide into a gas, which drives a turbine to generate electricity.