Solar Radiation on a Parabolic Concave Surface
Abstract
:1. Introduction
2. Materials and Methods
2.1. Concave Parabolic Surface Equation
2.2. Self-Shading in a Concave Parabolic Surface-North Facing
2.3. States of Shading
2.3.1. North-Facing Concave Surface
2.3.2. South-Facing Concave Surface
2.3.3. East/West-Facing Concave Surface
3. Solar Radiation Equations: North-Facing Surface
3.1. Direct Beam Radiation on Shaded Surface
3.2. Direct Beam Radiation on Non-Shaded Surface
3.3. Diffuse Radiation
4. Incident Solar Radiation-Numerical Results
5. Discussion
6. Conclusions
- Concave structures may be integrated with PV modules to generate electricity.
- Concave surfaces are self-shading resulting in non-uniformity of the solar radiation.
- Annual incident irradiation is calculated on a parabolic concave surface for and latitudes.
- The calculation shows that the south-oriented surface receives the highest irradiation, next is the east/west surface, and last is the north surface; however, the difference in the irradiation is not very big and is about 15 percent between the south and the north-oriented parabolic surfaces.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Sun in North Beam | No Shading Beam | Case (i) Beam | Case (ii) Beam | Case(iii) Beam | Diffuse | Global | |
---|---|---|---|---|---|---|---|
94,476 | 628,571 | 277,196 | 4852 | 30,036 | 473,366 | 1,508,496 | |
36,527 | 202,945 | 187,349 | 8262 | 18,901 | 475,861 | 929,846 |
Sun in North Beam | No Shading Beam | Case (i) Beam | Case (ii) Beam | Case(iii) Beam | Diffuse | Global | |
---|---|---|---|---|---|---|---|
1,216,521 | 66,093 | 0 | 0 | 26,779 | 473,366 | 1,782,758 | |
565,671 | 23,430 | 0 | 0 | 39,579 | 475,861 | 1,104,540 |
Sun in North Beam | No Shading Beam | Case (i) Beam | Case (ii) Beam | Case (iii) Beam | Diffuse | Global | |
---|---|---|---|---|---|---|---|
789,655 | 240,273 | 105,712 | 2703 | 0 | 473,366 | 1,611,709 | |
408,874 | 72,101 | 103,179 | 5542 | 4941 | 475,861 | 1,070,497 |
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Aronescu, A.; Appelbaum, J. Solar Radiation on a Parabolic Concave Surface. Energies 2021, 14, 2245. https://doi.org/10.3390/en14082245
Aronescu A, Appelbaum J. Solar Radiation on a Parabolic Concave Surface. Energies. 2021; 14(8):2245. https://doi.org/10.3390/en14082245
Chicago/Turabian StyleAronescu, Avi, and Joseph Appelbaum. 2021. "Solar Radiation on a Parabolic Concave Surface" Energies 14, no. 8: 2245. https://doi.org/10.3390/en14082245