Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation
The electroluminescence test is an experiment typically used to verify the behavior of the photovoltaic cell and to qualitatively check its integrity. It works by operating the photovoltaic cell as a diode polarized directly: the cells that light up in a module indicate how many of them work. This t...
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doaj-2a59a9438cdc407684d1d74310754d732020-11-25T00:40:21ZengMDPI AGEnergies1996-10732018-10-011110265910.3390/en11102659en11102659Electroluminescence Test to Investigate the Humidity Effect on Solar Cells OperationDaniela Fontani0Paola Sansoni1Franco Francini2Matteo Messeri3Giacomo Pierucci4Maurizio DeLucia5David Jafrancesco6CNR-INO National Institute of Optics, Largo E. Fermi, 50125 6—Firenze, ItalyCNR-INO National Institute of Optics, Largo E. Fermi, 50125 6—Firenze, ItalyCNR-INO National Institute of Optics, Largo E. Fermi, 50125 6—Firenze, ItalyDepartment DIEF, University of Florence, Via Santa Marta, 50139 3—Firenze, ItalyDepartment DIEF, University of Florence, Via Santa Marta, 50139 3—Firenze, ItalyDepartment DIEF, University of Florence, Via Santa Marta, 50139 3—Firenze, ItalyCNR-INO National Institute of Optics, Largo E. Fermi, 50125 6—Firenze, ItalyThe electroluminescence test is an experiment typically used to verify the behavior of the photovoltaic cell and to qualitatively check its integrity. It works by operating the photovoltaic cell as a diode polarized directly: the cells that light up in a module indicate how many of them work. This test provides an estimate of the maximum performance of the entire photovoltaic module. A qualitative inspection was performed by electroluminescence tests on 48 modules of photovoltaic cells. They had already been installed on a small-size concentration solar plant before the test and some modules had reached a lower level of performance than expected. A first electroluminescence test was performed, which showed that only 61.5% of the photocells worked. Since there were visible signs of humidity within the various modules, some of the inoperative modules underwent a dehumidification treatment in a climatic chamber. A second electroluminescence test showed that the percentage of functioning cells had increased to 66.3% after the drying treatment.http://www.mdpi.com/1996-1073/11/10/2659photovoltaicelectroluminescencehumidityclimatic chamber |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniela Fontani Paola Sansoni Franco Francini Matteo Messeri Giacomo Pierucci Maurizio DeLucia David Jafrancesco |
spellingShingle |
Daniela Fontani Paola Sansoni Franco Francini Matteo Messeri Giacomo Pierucci Maurizio DeLucia David Jafrancesco Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation Energies photovoltaic electroluminescence humidity climatic chamber |
author_facet |
Daniela Fontani Paola Sansoni Franco Francini Matteo Messeri Giacomo Pierucci Maurizio DeLucia David Jafrancesco |
author_sort |
Daniela Fontani |
title |
Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation |
title_short |
Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation |
title_full |
Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation |
title_fullStr |
Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation |
title_full_unstemmed |
Electroluminescence Test to Investigate the Humidity Effect on Solar Cells Operation |
title_sort |
electroluminescence test to investigate the humidity effect on solar cells operation |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2018-10-01 |
description |
The electroluminescence test is an experiment typically used to verify the behavior of the photovoltaic cell and to qualitatively check its integrity. It works by operating the photovoltaic cell as a diode polarized directly: the cells that light up in a module indicate how many of them work. This test provides an estimate of the maximum performance of the entire photovoltaic module. A qualitative inspection was performed by electroluminescence tests on 48 modules of photovoltaic cells. They had already been installed on a small-size concentration solar plant before the test and some modules had reached a lower level of performance than expected. A first electroluminescence test was performed, which showed that only 61.5% of the photocells worked. Since there were visible signs of humidity within the various modules, some of the inoperative modules underwent a dehumidification treatment in a climatic chamber. A second electroluminescence test showed that the percentage of functioning cells had increased to 66.3% after the drying treatment. |
topic |
photovoltaic electroluminescence humidity climatic chamber |
url |
http://www.mdpi.com/1996-1073/11/10/2659 |
work_keys_str_mv |
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