Analysis and improvement of solar flux distribution inside a cavity receiver based on multi-focal points of heliostat field

A Simple and Effective Heuristic Control System for the Heliostat Field of Solar Power Tower Plants

“…The overall goal is the same, but the descriptiveness of the objective function of the optimization problem is improved. Yu et al [24] use a TABU search to minimize flux peaks and spillage by following a combinatorial formulation. Heliostats are grouped to reduce the search space, but the shape of the receiver is considered in depth to distribute the aim points.…”

“…The work in [25] is an exception example because the authors use ray-tracing and reduce its time impact by storing partial results. Regardless, creating databases with pre-computed information is also an option with analytical strategies [10,11,14,24]. This work relies on an analytical model of the target field.…”

A concise overview of heliostat fields-solar thermal collectors: Current state of art and future perspective

“…The main purpose of heliostat aiming strategy is to minimize/eliminate the instances of local hot spots by evenly distribute the solar flux on the aperture and lengthen the receiver lifetime. There are several studies available in the literature focusing on the possible heliostat aiming strategies and its influence on temperature profile and flux distribution including works by Besarati et al, Yu et al, and Salomé et al It is recommended to refer to the work by Grobler and Gauché for a complete overview of aiming strategies in heliostat field collectors.…”

Non-uniform characteristics of solar flux distribution in the concentrating solar power systems and its corresponding solutions: A review

“…[79] Figure 17 (Color online) Schematic diagram of absorber tube and secondary reflector [79] 图 18 (网络版彩色)吸热管相对辐射能量分布 [79] Figure 18 (Color online) Relative solar flux distribution on the absorber tube [79] 式、优化反射镜几何结构与光学参数、合理设计反射 镜跟踪与瞄准方式等方法开展了具有单管腔式吸热 器系统(图19)的光学性能优化研究 [74] . [81,82] , 镜面尺寸多在20~150 m 2 范围内 [83,84] .…”

“…及运行参数. Figure 25 (Color online) Heliostat [82] 图 26 (网络版彩色)管式吸热器 [85,86] . (a) 腔体吸热器; (b) 外露吸热器 Figure 26 (Color online) Tubular solar receiver [85,86] .…”