【摘要】 以化学惰性的固体颗粒作为下一代太阳能热发电系统中的传热流体和储热介质，可以使集热和储热系统的运行温度超过800℃，有望大幅度提高太阳能热发电系统的年均发电效率，进而降低发电成本。固体颗粒吸热器是太阳能热发电系统中的核心设备，国内外研究团队提出了多种技术方案。该文根据颗粒流动方式的不同对各种固体颗粒吸热器技术进行分类，并对各种固体颗粒吸热器技术的研究进展进行介绍，重点阐述了优化吸热器结构和颗粒流动特性对吸热器热性能的提升作用。此外，通过各种固体吸热器热性能参数的对比分析，结合其运行特征总结出面临的技术挑战，并提出相应的优化策略，可为固体颗粒吸热器的优化设计提供指导。更多还原

【Abstract】 The use of chemically inert solid particles as the heat transfer fluid and thermal energy storage(TES) materials in the next-generation concentrated solar power(CSP) plants will enable the solar receiver system and TES system to operate at temperatures over 800℃, which is expected to substantially increase the average annual power generation efficiency of CSP plants, and thus reduce the levelized cost of electricity.Solid particle solar receiver(SPSR) is the key equipment, and various schemes have been proposed by domestic and international research teams. This paper classifies various SPSR technologies according to different particle flow modes and provides a detailed introduction to the research progress of various SPSR technologies, focusing on optimizing SPSR structures and particle flow characteristics to enhance the thermal performance of the SPSRs. Combined with their operational characteristics, the technical challenges faced are also summarized through the comparative analysis of the thermal performance parameters of various SPSRs, and the corresponding optimization strategies are proposed to guide the optimal design of SPSRs.更多还原