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Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces

Rima J. Isaifan, Daniel Johnson Orcid Logo, Luis Ackermann, Benjamin Figgis, Mohammed Ayoub

Solar Energy Materials and Solar Cells, Volume: 191, Pages: 413 - 421

Swansea University Author: Daniel Johnson Orcid Logo

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DOI (Published version): 10.1016/j.solmat.2018.11.031

Abstract

Soiling of Photovoltaic (PV) modules is a growing area of concern due to the adverse effect of dust accumulation on PV performance and reliability. In this work, we report on four fundamental adhesion forces that take place at the first stage of soiling process. These are capillary, van der Waal, el...

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Published in: Solar Energy Materials and Solar Cells
ISSN: 0927-0248
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa47952
first_indexed 2018-12-13T14:08:20Z
last_indexed 2019-03-11T19:58:37Z
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spelling 2019-03-11T15:15:21.7355521 v2 47952 2018-12-13 Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces 4bdcc306062428d2715b0dd308cc092f 0000-0001-6921-0389 Daniel Johnson Daniel Johnson true false 2018-12-13 Soiling of Photovoltaic (PV) modules is a growing area of concern due to the adverse effect of dust accumulation on PV performance and reliability. In this work, we report on four fundamental adhesion forces that take place at the first stage of soiling process. These are capillary, van der Waal, electrostatic and gravitational forces. It is found that under high relative humidity, the adhesion mechanism between dust particles and PV module surfaces is dominated by capillary force, while van der Waal force dominates under dry conditions. Moreover, real field data for long soiling periods over solar panels in Qatar were investigated and resulted in proposing a novel modified sigmoid function that predicts a relative humidity inflexion value at which transition in the particulate matter deposition rate takes place from low to high values. Moreover, the effect of surface roughness was investigated by measuring adhesion force over clean glass versus substrates that are coated with in-house developed anti-dust titania thin films. Journal Article Solar Energy Materials and Solar Cells 191 413 421 0927-0248 Adhesion, Soiling mechanism, Capillary force, Dust particles, vander Waal ,Qatar, Atomic Force Spectroscopy 31 12 2019 2019-12-31 10.1016/j.solmat.2018.11.031 COLLEGE NANME COLLEGE CODE Swansea University 2019-03-11T15:15:21.7355521 2018-12-13T10:55:04.4529927 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Rima J. Isaifan 1 Daniel Johnson 0000-0001-6921-0389 2 Luis Ackermann 3 Benjamin Figgis 4 Mohammed Ayoub 5 0047952-29012019110754.pdf isaifan2018.pdf 2019-01-29T11:07:54.2630000 Output 1425719 application/pdf Accepted Manuscript true 2019-12-11T00:00:00.0000000 true eng
title Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
spellingShingle Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
Daniel Johnson
title_short Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
title_full Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
title_fullStr Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
title_full_unstemmed Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
title_sort Evaluation of the adhesion forces between dust particles and photovoltaic module surfaces
author_id_str_mv 4bdcc306062428d2715b0dd308cc092f
author_id_fullname_str_mv 4bdcc306062428d2715b0dd308cc092f_***_Daniel Johnson
author Daniel Johnson
author2 Rima J. Isaifan
Daniel Johnson
Luis Ackermann
Benjamin Figgis
Mohammed Ayoub
format Journal article
container_title Solar Energy Materials and Solar Cells
container_volume 191
container_start_page 413
publishDate 2019
institution Swansea University
issn 0927-0248
doi_str_mv 10.1016/j.solmat.2018.11.031
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Soiling of Photovoltaic (PV) modules is a growing area of concern due to the adverse effect of dust accumulation on PV performance and reliability. In this work, we report on four fundamental adhesion forces that take place at the first stage of soiling process. These are capillary, van der Waal, electrostatic and gravitational forces. It is found that under high relative humidity, the adhesion mechanism between dust particles and PV module surfaces is dominated by capillary force, while van der Waal force dominates under dry conditions. Moreover, real field data for long soiling periods over solar panels in Qatar were investigated and resulted in proposing a novel modified sigmoid function that predicts a relative humidity inflexion value at which transition in the particulate matter deposition rate takes place from low to high values. Moreover, the effect of surface roughness was investigated by measuring adhesion force over clean glass versus substrates that are coated with in-house developed anti-dust titania thin films.
published_date 2019-12-31T04:32:07Z
_version_ 1860154034654019584
score 11.099609

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