钙基热化学储能体系装备与系统研究进展

In recent years, for sustainable development, large-scale applications of clean and renewable energy such as solar energy are an urgent need. To overcome the disadvantages of solar energy is easily affected by the variety of weather or day and night so that energy cannot be supplied continuously, researchers have proposed integrating the energy storage system into the solar power generation system. In this way, solar energy can be stored in some medium and released when required. Then the system can operate continuously. Among many energy storage methods, thermochemical energy storage has high energy density, and the materials can be transported and stored for a long time. These advantages turn it into a new research hotspot. Materials choice is variable in thermochemical energy storage, in which CaCO₃/CaO and Ca(OH)₂/CaO system is promising because of their high security, low cost, and availability. This article introduced the reaction principle and materials and summarized advanced reactor design and system integration and control of these two calcium-based thermochemical energy storage systems. Moreover, the challenges and opportunities existing in the research are discussed. Some suggestions can be provided for future research and development of calcium-based thermochemical energy storage technology.