Zhimin Wang, Wenwu Chan, Chang Yang, Rui Tian, Xiaofei Han, Li Song, Chonggang Gao. Effect and Prediction Method of Specular Dust Based on Trough Solar System[J]. Acta Optica Sinica, 2020, 40(18): 1808001
- Acta Optica Sinica
- Vol. 40, Issue 18, 1808001 (2020)
Fig. 1. Effect of dust of concentrator surface on ray propagation path
Fig. 2. Effect of surface corrosion of concentrator on ray propagation path
Fig. 3. Layouts of dust samples. (a) Test device; (b) design diagram
Fig. 4. Comparison test platform of dual-axis tracking trough solar system
Fig. 5. Flow chart of thermodynamic performance test based on trough solar system
Fig. 6. Profile of cavity receiver
Fig. 7. Pictures of concentrators with dust under different working conditions. (a) Working condition 1; (b) working condition 2; (c) working condition 3
Fig. 8. Effect of environmental temperature on photothermal coupling factor of trough solar system
Fig. 9. Relative reflectance varies with wavelength at each measurement point. (a) Working condition 1; (b) working condition 2; (c) working condition 3
Fig. 10. Focal plane energy flux density on dusty mirror and clean mirror. (a) Working condition 1; (b) working condition 2; (c) working condition 3
Fig. 11. Acquisition factor varies with aperture width under different working conditions. (a) Working condition 1; (b) working condition 2; (c) working condition 3
Fig. 12. Change of acquisition factor correction coefficient caused by dust reflection factor
Fig. 13. Experimental and predicted values of thermal efficiency under different dust conditions
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Table 1. Structural parameters of cavity receiver
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Table 2. Main instruments
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