A Novel Accelerated Aging Test for Floats in a Floating Photovoltaic System

Countries around the globe have recently been actively developing a new type of solar power system known as the floating photovoltaic (FPV) system. The FPV system is advantageous in terms of efficiency and is economic; however, the environmental conditions on the surface of water are harsher than on...

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Veröffentlicht in:Coatings (Basel) 2021-11, Vol.11 (11), p.1283
Hauptverfasser: Liu, Chun-Kuo, Kong, Zhong-Ri, Kao, Ming-Je, Wu, Teng-Chun
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container_issue 11
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container_title Coatings (Basel)
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creator Liu, Chun-Kuo
Kong, Zhong-Ri
Kao, Ming-Je
Wu, Teng-Chun
description Countries around the globe have recently been actively developing a new type of solar power system known as the floating photovoltaic (FPV) system. The FPV system is advantageous in terms of efficiency and is economic; however, the environmental conditions on the surface of water are harsher than on the ground, and regulations or standards of the long-term durability of the float are insufficient. As a result, this study aims to investigate the durability of the float through three types of accelerated aging tests, including the damp heat test, the ozone-aging test, and the ultraviolet (UV) aging test. After the 7-day damp heat test (80 °C/95% RH), the results revealed that four groups of high-density polyethylene (HDPE) extrusion specimens neither produced more oxygen-containing functional groups, according to Fourier-transform infrared (FTIR) spectrum analysis, nor became more easily broken by the tensile test. Furthermore, more oxygen-containing functional groups were produced after the 7-day ozone-aging test (80 °C/95% RH/500 ppm) than the 17-day UV-aging test (60 °C/0% RH/60 kW·h·m−2). On the contrary, UV aging would make HDPE specimens harder and more brittle than ozone aging. To conclude, both ozone- and UV-aging tests can evaluate the durability of the float quickly and efficiently.
doi_str_mv 10.3390/coatings11111283
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The FPV system is advantageous in terms of efficiency and is economic; however, the environmental conditions on the surface of water are harsher than on the ground, and regulations or standards of the long-term durability of the float are insufficient. As a result, this study aims to investigate the durability of the float through three types of accelerated aging tests, including the damp heat test, the ozone-aging test, and the ultraviolet (UV) aging test. After the 7-day damp heat test (80 °C/95% RH), the results revealed that four groups of high-density polyethylene (HDPE) extrusion specimens neither produced more oxygen-containing functional groups, according to Fourier-transform infrared (FTIR) spectrum analysis, nor became more easily broken by the tensile test. Furthermore, more oxygen-containing functional groups were produced after the 7-day ozone-aging test (80 °C/95% RH/500 ppm) than the 17-day UV-aging test (60 °C/0% RH/60 kW·h·m−2). 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subjects Accelerated aging tests
Aging
Aquaculture
Durability
Extrusion
Fourier transforms
Functional groups
Galvanized steel
Heat
High density polyethylenes
Humidity
Infrared analysis
Ozone
Pollutants
Rubber
Spectrum analysis
Tensile tests
Test systems
Ultraviolet radiation
VOCs
Volatile organic compounds
title A Novel Accelerated Aging Test for Floats in a Floating Photovoltaic System
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