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Title: Soiling Related Abrasion and the Development of a PV Abrasion Standard

Abstract

The natural soiling and consequent cleaning of photovoltaic (PV) modules result in abrasion damage to the cover glass. The durability of the front glass has important economic consequences, including the use of antireflective and/or antisoiling coatings as well as the method and frequency of cleaning-maintenance. The abrasion of glass and coated glass has been explored in a field study, including the soiling-prone locations of: Dubai (United Arab Emirates), Kuwait city (Kuwait), Mesa (Arizona), Mumbai (India), and Sacramento (California). Dry brush cleaned specimens will be compared to those subject to artificial brush testing or falling sand abrasion. The characteristics of material integrity, optical transmittance, surface energy, surface roughness, and scratch size were examined using an optical microscope, spectrophotometer, contact goniometer (for water), interferometer, and atomic force microscope, respectively. The findings of this study will be used to provide feedback regarding the cleaning equipment, cleaning methods, and coatings used in the PV industry. The study here will also be used to aid the development of an abrasion standard for the PV industry.

Authors:
 [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1484165
Report Number(s):
NREL/PR-5K00-72850
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the International PV Soiling Workshop, 30 October - 1 November 2018, Golden, Colorado
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar panels; modules; brush testing sand abrasion; standards; photovoltaic; PV; optical transmitttance; surface energy; cleaning methods

Citation Formats

Miller, David C, Einhorn, Asher, Engtrakul, Chaiwat, Lanaghan, Clare, Micheli, Leonardo, Moutinho, Helio R, Muller, Matthew T, To, Bobby, Toth, Sarah, and Simpson, Lin J. Soiling Related Abrasion and the Development of a PV Abrasion Standard. United States: N. p., 2018. Web.
Miller, David C, Einhorn, Asher, Engtrakul, Chaiwat, Lanaghan, Clare, Micheli, Leonardo, Moutinho, Helio R, Muller, Matthew T, To, Bobby, Toth, Sarah, & Simpson, Lin J. Soiling Related Abrasion and the Development of a PV Abrasion Standard. United States.
Miller, David C, Einhorn, Asher, Engtrakul, Chaiwat, Lanaghan, Clare, Micheli, Leonardo, Moutinho, Helio R, Muller, Matthew T, To, Bobby, Toth, Sarah, and Simpson, Lin J. Mon . "Soiling Related Abrasion and the Development of a PV Abrasion Standard". United States. doi:. https://www.osti.gov/servlets/purl/1484165.
@article{osti_1484165,
title = {Soiling Related Abrasion and the Development of a PV Abrasion Standard},
author = {Miller, David C and Einhorn, Asher and Engtrakul, Chaiwat and Lanaghan, Clare and Micheli, Leonardo and Moutinho, Helio R and Muller, Matthew T and To, Bobby and Toth, Sarah and Simpson, Lin J},
abstractNote = {The natural soiling and consequent cleaning of photovoltaic (PV) modules result in abrasion damage to the cover glass. The durability of the front glass has important economic consequences, including the use of antireflective and/or antisoiling coatings as well as the method and frequency of cleaning-maintenance. The abrasion of glass and coated glass has been explored in a field study, including the soiling-prone locations of: Dubai (United Arab Emirates), Kuwait city (Kuwait), Mesa (Arizona), Mumbai (India), and Sacramento (California). Dry brush cleaned specimens will be compared to those subject to artificial brush testing or falling sand abrasion. The characteristics of material integrity, optical transmittance, surface energy, surface roughness, and scratch size were examined using an optical microscope, spectrophotometer, contact goniometer (for water), interferometer, and atomic force microscope, respectively. The findings of this study will be used to provide feedback regarding the cleaning equipment, cleaning methods, and coatings used in the PV industry. The study here will also be used to aid the development of an abrasion standard for the PV industry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 26 00:00:00 EST 2018},
month = {Mon Nov 26 00:00:00 EST 2018}
}

Conference:
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