4AV.1.24_paper.pdf (676.53 kB)
Direct measurement of moisture ingress in PV laminates
conference contribution
posted on 2019-11-05, 14:11 authored by Nikoleta Kyranaki, David Whalley, David HuttDavid Hutt, Ralph Gottschalg, Tom BettsTom BettsThis work demonstrates a novel method for the measurement of moisture ingress into PV laminates, by
the use of humidity indicator cards encapsulated within the structure. The humidity indicator cards change colour due
to moisture exposure, which is quantified by processing images of the samples taken with a camera. To allow the
variance of colour to be matched to specific levels of humidity, a detailed calibration was first performed. To achieve
this, laminates with the structure [EVA-humidity indicator card-EVA-glass] were stabilised in an environmental
chamber at 85ºC at increasing levels of relative humidity. The colour change of the humidity indicator cards
corresponding to the relative humidity inside the chamber was then plotted on RGB colour space diagrams. The purpose
of this work is the development of a measurement method for the moisture that accumulates at the front side of PV
cells, for the experimental verification of simulations of the moisture ingress into PV modules and the better
understanding of degradation modes related to corrosion.
Funding
European Union's H2020 programme SOLAR- TRAIN under grant agreement No 721452.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Research Unit
- Centre for Renewable Energy Systems Technology (CREST)
Pages
1049 - 1053Source
36th European Photovoltaic Solar Energy Conference and ExhibitionPublisher
WIPVersion
- AM (Accepted Manuscript)
Rights holder
© WIPISBN
3936338604ISSN
2196-100XPublisher version
Language
- en
Location
MarseilleEvent dates
9th September 2019 - 13th September 2019Depositor
Miss Nikoleta Kyranaki Deposit date: 5 November 2019Usage metrics
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