Maogang Wu, Yamei Yu, Ruihua Xu, Shaobing Wu, Runsheng Tang. Application of Vector Algebra in Solar Energy Calculation of Fixed and Tracked Solar Panels[J]. Acta Optica Sinica, 2021, 41(15): 1508001
- Acta Optica Sinica
- Vol. 41, Issue 15, 1508001 (2021)
Fig. 1. Equatorial coordinate system
Fig. 2. Unit vectors of sun and solar panel in horizontal coordinate system
Fig. 3. Schematic of shading distance before and after solar panel
Fig. 4. Schematics of shading distance between non-southern faced buildings. (a) Schematic of non-southern faced buildings; (b) projection angle of sun rays on vertical plane consistent with orientation of building
Fig. 5. Schematic of αs and
Fig. 6. Normal vector of polar axis sun-tracking solar panel in equatorial coordinate system. (a) Projection of normal of tracing solar panel on XOZ coordinate plane; (b) projection of normal of tracing solar plane on XOY coordinate plane
Fig. 7. Normal vector of horizontal axis sun-tracking panel in horizontal coordinate system. (a) N-S horizontal axis sun-tracking panel; (b) E-W horizontal axis sun-tracking panel
Fig. 8. Newly proposed coordinate system and normal vector of INSA tracked solar panels.(a)Relationship between newly proposed coordinate and equatorial coordinate systems; (b)normal vector of INSA tracked solar panels in newly proposed coordinate system
Fig. 9. Scheme of vertical axis sun-tracking system and vector of sun-tracking panel normal in horizontal coordinate system. (a) Scheme of vertical axis sun-tracking system; (b) projection vector of o solar panel normal on horizontal plane
Fig. 10. Sun-tracking efficiency versus time for different sun-tracking techniques. (a) Equinoxes; (b) winter solstice
Fig. 11. Back view of INSA-MP system in direction of INSA
Fig. 12. Tracking efficiency versus time for different tracking systems. (a) Equinoxes; (b) solstices
Fig. 13. Scheme of solar tower and reflection of light. (a) Schematic of solar tower; (b) relationship among vectors i, r and n'c
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