Shading by Overhang PV Collectors
Photovoltaic modules integrated into buildings may provide shading to windows, doors and walls to protect against sun rays and at the same time generate ancillary electrical energy. The study develops the methodology for calculating the shadow variation cast by overhangs on doors, windows, carports,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-10-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/9/20/4280 |
| _version_ | 1818927646637031424 |
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| author | Joseph Appelbaum Avi Aronescu Tamir Maor |
| author_facet | Joseph Appelbaum Avi Aronescu Tamir Maor |
| author_sort | Joseph Appelbaum |
| collection | DOAJ |
| description | Photovoltaic modules integrated into buildings may provide shading to windows, doors and walls to protect against sun rays and at the same time generate ancillary electrical energy. The study develops the methodology for calculating the shadow variation cast by overhangs on doors, windows, carports, and calculates the annual incident energy (beam, diffuse and global energy) on overhangs made up of conventional and bifacial PV modules. The methodology of the present study is different from published articles including software programs. The study starts with shadows on walls cast by a horizontal pole and follows by shadows on walls cast by horizontal plates, inclined pole, inclined plate, and shaded area. The study deals also with overhangs placed one above the other. The calculation of the diffuse radiation involves the calculation of view factors to sky, to ground and between overhangs. In addition, the present study suggests using bifacial PV modules for overhangs and calculates the contribution of the reflective energy (5% and more) from walls and ground to the rear side of the bifacial PV module. |
| first_indexed | 2024-12-20T03:16:19Z |
| format | Article |
| id | doaj.art-303ec15508aa4f83ba973cbb8aa3ecd8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-20T03:16:19Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-303ec15508aa4f83ba973cbb8aa3ecd82022-12-21T19:55:20ZengMDPI AGApplied Sciences2076-34172019-10-01920428010.3390/app9204280app9204280Shading by Overhang PV CollectorsJoseph Appelbaum0Avi Aronescu1Tamir Maor2Tel Aviv University School of Electrical Engineering, Tel Aviv 69978, IsraelTel Aviv University School of Electrical Engineering, Tel Aviv 69978, IsraelTel Aviv University School of Electrical Engineering, Tel Aviv 69978, IsraelPhotovoltaic modules integrated into buildings may provide shading to windows, doors and walls to protect against sun rays and at the same time generate ancillary electrical energy. The study develops the methodology for calculating the shadow variation cast by overhangs on doors, windows, carports, and calculates the annual incident energy (beam, diffuse and global energy) on overhangs made up of conventional and bifacial PV modules. The methodology of the present study is different from published articles including software programs. The study starts with shadows on walls cast by a horizontal pole and follows by shadows on walls cast by horizontal plates, inclined pole, inclined plate, and shaded area. The study deals also with overhangs placed one above the other. The calculation of the diffuse radiation involves the calculation of view factors to sky, to ground and between overhangs. In addition, the present study suggests using bifacial PV modules for overhangs and calculates the contribution of the reflective energy (5% and more) from walls and ground to the rear side of the bifacial PV module.https://www.mdpi.com/2076-3417/9/20/4280bipvwindow shadowingoverhang pv collectorsbifacial pv collectors |
| spellingShingle | Joseph Appelbaum Avi Aronescu Tamir Maor Shading by Overhang PV Collectors Applied Sciences bipv window shadowing overhang pv collectors bifacial pv collectors |
| title | Shading by Overhang PV Collectors |
| title_full | Shading by Overhang PV Collectors |
| title_fullStr | Shading by Overhang PV Collectors |
| title_full_unstemmed | Shading by Overhang PV Collectors |
| title_short | Shading by Overhang PV Collectors |
| title_sort | shading by overhang pv collectors |
| topic | bipv window shadowing overhang pv collectors bifacial pv collectors |
| url | https://www.mdpi.com/2076-3417/9/20/4280 |
| work_keys_str_mv | AT josephappelbaum shadingbyoverhangpvcollectors AT aviaronescu shadingbyoverhangpvcollectors AT tamirmaor shadingbyoverhangpvcollectors |