Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination
This study was performed in outdoor conditions to quantify the level of influence on the electrical performance of the Multi-junction (MJ) solar cells. It was discovered that non-uniform illumination on the solar cell could reduce the MJ electrical output by more than 40%. Also, the irradiation unif...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SolarLits
2020-02-01
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| Series: | Journal of Daylighting |
| Subjects: | |
| Online Access: | https://solarlits.com/jd/7-1 |
| _version_ | 1818836768808501248 |
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| author | Hashem Shatnawi Abdulrahman Aldossary |
| author_facet | Hashem Shatnawi Abdulrahman Aldossary |
| author_sort | Hashem Shatnawi |
| collection | DOAJ |
| description | This study was performed in outdoor conditions to quantify the level of influence on the electrical performance of the Multi-junction (MJ) solar cells. It was discovered that non-uniform illumination on the solar cell could reduce the MJ electrical output by more than 40%. Also, the irradiation uniformity was improved by applying several methods; increasing the distance between the concentrator and the receiver (l) and introducing a secondary optical element (SOE) on the receiver. The outdoor measurement also revealed that the electrical efficiency of the solar cell increased from around 22% to 37% with an increment of 68%, due to improvement of irradiation uniformity. However, the optical efficiency substantially fell when increasing the distance (l). To address this issue, a 0.06 m high SOE having a surface reflectivity of 90% above the PV assembly was implemented to enhance the irradiation uniformity and to minimise the dramatic decline in optical efficiency. The hot spot initiated by non-uniform illumination was also examined in outdoor conditions by measuring the temperature at the centre and both sides of the PV cell. Accordingly, a variance of about 13 K was observed between the centre and both sides (0.005 m distance) of the PV cell’s surface area, which was further reduced to 1 K after improving the illumination uniformity. |
| first_indexed | 2024-12-19T03:11:52Z |
| format | Article |
| id | doaj.art-4822f47ad8a8484ca0ed7fa2669c41cd |
| institution | Directory Open Access Journal |
| issn | 2383-8701 |
| language | English |
| last_indexed | 2024-12-19T03:11:52Z |
| publishDate | 2020-02-01 |
| publisher | SolarLits |
| record_format | Article |
| series | Journal of Daylighting |
| spelling | doaj.art-4822f47ad8a8484ca0ed7fa2669c41cd2022-12-21T20:37:59ZengSolarLitsJournal of Daylighting2383-87012020-02-017111210.15627/jd.2020.1Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform IlluminationHashem Shatnawi0Abdulrahman Aldossary1Jubail Technical Institute, PO Box 10335, Jubail Industrial City 31961, Saudi ArabiaJubail Technical Institute, PO Box 10335, Jubail Industrial City 31961, Saudi ArabiaThis study was performed in outdoor conditions to quantify the level of influence on the electrical performance of the Multi-junction (MJ) solar cells. It was discovered that non-uniform illumination on the solar cell could reduce the MJ electrical output by more than 40%. Also, the irradiation uniformity was improved by applying several methods; increasing the distance between the concentrator and the receiver (l) and introducing a secondary optical element (SOE) on the receiver. The outdoor measurement also revealed that the electrical efficiency of the solar cell increased from around 22% to 37% with an increment of 68%, due to improvement of irradiation uniformity. However, the optical efficiency substantially fell when increasing the distance (l). To address this issue, a 0.06 m high SOE having a surface reflectivity of 90% above the PV assembly was implemented to enhance the irradiation uniformity and to minimise the dramatic decline in optical efficiency. The hot spot initiated by non-uniform illumination was also examined in outdoor conditions by measuring the temperature at the centre and both sides of the PV cell. Accordingly, a variance of about 13 K was observed between the centre and both sides (0.005 m distance) of the PV cell’s surface area, which was further reduced to 1 K after improving the illumination uniformity.https://solarlits.com/jd/7-1multi-junction solar cellsnon-uniform illuminationelectrical efficiencyfresnel lens |
| spellingShingle | Hashem Shatnawi Abdulrahman Aldossary Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination Journal of Daylighting multi-junction solar cells non-uniform illumination electrical efficiency fresnel lens |
| title | Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination |
| title_full | Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination |
| title_fullStr | Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination |
| title_full_unstemmed | Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination |
| title_short | Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination |
| title_sort | outdoor investigation of high concentrator photovoltaic under uniform and non uniform illumination |
| topic | multi-junction solar cells non-uniform illumination electrical efficiency fresnel lens |
| url | https://solarlits.com/jd/7-1 |
| work_keys_str_mv | AT hashemshatnawi outdoorinvestigationofhighconcentratorphotovoltaicunderuniformandnonuniformillumination AT abdulrahmanaldossary outdoorinvestigationofhighconcentratorphotovoltaicunderuniformandnonuniformillumination |