Solar Radiation on a Parabolic Concave Surface

Avi Aronescu and Joseph Appelbaum
Additional contact information
Avi Aronescu: School of Electrical Engineering, Tel Aviv University, Tel Aviv 699768, Israel
Joseph Appelbaum: School of Electrical Engineering, Tel Aviv University, Tel Aviv 699768, Israel

Energies, 2021, vol. 14, issue 8, 1-11

Abstract: Curved structures are used in buildings and may be integrated with photovoltaic modules. Self-shading occurs on non-flat (curved) surface collectors resulting in a non-uniform distribution of the direct beam and the diffuse incident solar radiation along the curvature the surface. The present study uses analytical expressions for calculating and analyzing the incident solar radiation on a general parabolic concave surface. Concave surfaces facing north, south and east/west are considered, and numerical values for the annual incident irradiations (in kWh ) are demonstrated for two locations: 32 ° N (Tel Aviv, Israel) and 52.2 ° N (Lindenberg, Germany). The numerical results show that the difference in the incident global irradiation for the different surface orientations is not very wide. At 32 ° N , the irradiation difference between the south and north-oriented surface is about 15 percent, and between the south and east surface orientation it is about 9.6 percent. For latitude 52.2 ° N , the global irradiation difference between the south and north-oriented surface is about 16 percent, and between the south and east orientation it is about 3 percent.

Keywords: parabolic concave surface; self-shading; non-uniform incident radiation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/8/2245/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/8/2245/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:8:p:2245-:d:537817

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().