Effect of moisture condensation on long-term reliability of crystalline silicon photovoltaic modules

Moisture condensation (MC) can occur in photovoltaic (PV) modules in hot and humid climates, and the resulting water droplets can cause more areas of corrosion. Therefore, in this study, MC history of PV modules exposed to Miami climate (FL, USA) has been derived employing corresponding meteorologic...

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Bibliographic Details
Published in:Microelectronics and reliability 2013-12, Vol.53 (12), p.1922-1926
Main Authors: Park, Nochang, Han, Changwoon, Kim, Donghwan
Format: Article
Language:English
Subjects:
Applied sciences
Climate
Degradation
Droplets
Energy
Exact sciences and technology
Mathematical models
Modules
Moisture
Natural energy
Photovoltaic cells
Photovoltaic conversion
Solar cells
Solar cells. Photoelectrochemical cells
Solar energy
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Summary:Moisture condensation (MC) can occur in photovoltaic (PV) modules in hot and humid climates, and the resulting water droplets can cause more areas of corrosion. Therefore, in this study, MC history of PV modules exposed to Miami climate (FL, USA) has been derived employing corresponding meteorological data. The duration of MC versus temperature of PV module (Tmodule) was calculated over 1year. Furthermore, five types of accelerated tests were conducted to develop a MC-induced degradation prediction model. The thermal activation energy, 0.4524eV, was calculated. The Brunauer–Emmett–Teller (BET) model was used to predict the degradation rate. The accumulated degradation rate of a PV module exposed to the accelerated condition of MC was 1.45times greater than that of damp heat (DH). The effect of encapsulant materials on the frequency of MC and accumulated degradation rate over 1year were calculated in the Miami climate.
ISSN:0026-2714
1872-941X
DOI:10.1016/j.microrel.2013.05.004