Fig. 1. Sketch map of cut angle quartz glass Rasching ring

Fig. 2. Construction flow of mixed-particle receivers

Fig. 3. Solar concentrating model of single dish paraboloid

Fig. 4. Comparison of solar flux distribution curves provided by single dish and theoretical model

Fig. 5. Sunlight transmission lightpath in the quartz glass sphere

Fig. 6. Experimental samples of mixed particle packed beds

Fig. 7. Influence of the number of sampling rays on the relative reflectivity

Fig. 8. Reflectivity stability of randomly packed mixed-particle receiver

Fig. 9. Experiments to verify the random stacking reflection loss model

Fig. 10. Influences of particle size ratio on the reflectivity of randomly packed particle receivers

Fig. 11. Influences of layer number of quartz glass particles on the reflectivity of mixed particle solar receivers

Fig. 12. Influences of the cut angle of quartz glass cut Rasching ring on the reflectivity of CRRB receivers