聚光型太阳能热发电(CSP)作为一种重要的可再生能源技术,对开发利用太阳资源、保障能源的供给、节能减排具有重要的作用和意义。分别对槽式系统、线性菲涅耳系统、塔式系统、碟式系统4种CSP系统接收器表面能流特性进行分析,对接收器表面非均匀分布的能流特性带来的挑战和提出的解决方法进行分析总结。接收器表面非均匀的能流分布会导致局部温度过高,给系统的安全高效运行带来不利影响,故需要对聚光集热系统进行优化改进。而解决CSP系统非均匀能流问题的方法主要为改善聚光性能和吸热性能,使系统达到“光热匹配”。

As an important renewable energy technology, concentrating solar power (CSP) plays an important role in the development and utilization of solar resources, supply of energy, energy conservation, and emission reduction. The surface energy flux distribution of the receivers of four CSP systems including parabolic trough system, linear Fresnel reflector system, solar power tower, and solar dish system are analyzed and reviewed. The challenges brought by the non-uniform flux distribution characteristics of the receiver surface and the corresponding solutions are summarized. The non-uniform flux distribution on the surface of the receiver leads to a high local temperature, which has an adverse effect on the safe and efficient operation of the CSP system. Therefore, it is necessary to optimize and improve the concentrating collector system. For the four CSP methods, the main solution is to improve the concentrating performance and heat absorption performance to make the light-collecting match heat absorption.