Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers

The availability of fresh drinkable water and water security is becoming a global challenge for sustainable development. In this regard, solar stills, due to their ease in operation, installation, and utilization of direct sunlight (as thermal energy), promise a better and sustainable future technol...

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Autores principales:	Shwe Sin Han, Usman Ghafoor, Tareq Saeed, Hassan Elahi, Usman Masud, Laveet Kumar, Jeyraj Selvaraj, Muhammad Shakeel Ahmad
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	water solar still absorber silicon temperature Technology T
Acceso en línea:	https://doaj.org/article/12a424b2ee1d44c29dcb59a63ed52aa3
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id	oai:doaj.org-article:12a424b2ee1d44c29dcb59a63ed52aa3
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spelling	oai:doaj.org-article:12a424b2ee1d44c29dcb59a63ed52aa32021-11-11T15:55:39ZSilicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers10.3390/en142171401996-1073https://doaj.org/article/12a424b2ee1d44c29dcb59a63ed52aa32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7140https://doaj.org/toc/1996-1073The availability of fresh drinkable water and water security is becoming a global challenge for sustainable development. In this regard, solar stills, due to their ease in operation, installation, and utilization of direct sunlight (as thermal energy), promise a better and sustainable future technology for water security in urban and remote areas. The major issue is its low distillate productivity, which limits its widespread commercialization. In this study, the effect of silicon (Si) particles is examined to improve the absorber surface temperature of the solar still absorber plate, which is the major component for increased distillate yield. Various weight percentages of Si particles were introduced in paint and coated on the aluminum absorber surface. Extensive indoor (using a self-made halogen light-based solar simulator) and outdoor testing were conducted to optimize the concentration. The coatings with 15 wt % Si in the paint exhibited the highest increase in temperature, namely, 98.5 °C under indoor controlled conditions at 1000 W/m<sup>2</sup> irradiation, which is 65.81% higher than a bare aluminum plate and 37.09% higher compared to a black paint-coated aluminum plate. On the other hand, coatings with 10 wt % Si reached up to 73.2 °C under uncontrolled outdoor conditions compared to 68.8 °C for the black paint-coated aluminum plate. A further increase in concentration did not improve the surface temperature, which was due to an excessive increase in thermal conductivity and high convective heat losses.Shwe Sin HanUsman GhafoorTareq SaeedHassan ElahiUsman MasudLaveet KumarJeyraj SelvarajMuhammad Shakeel AhmadMDPI AGarticlewatersolar stillabsorbersilicontemperatureTechnologyTENEnergies, Vol 14, Iss 7140, p 7140 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	water solar still absorber silicon temperature Technology T
spellingShingle	water solar still absorber silicon temperature Technology T Shwe Sin Han Usman Ghafoor Tareq Saeed Hassan Elahi Usman Masud Laveet Kumar Jeyraj Selvaraj Muhammad Shakeel Ahmad Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
description	The availability of fresh drinkable water and water security is becoming a global challenge for sustainable development. In this regard, solar stills, due to their ease in operation, installation, and utilization of direct sunlight (as thermal energy), promise a better and sustainable future technology for water security in urban and remote areas. The major issue is its low distillate productivity, which limits its widespread commercialization. In this study, the effect of silicon (Si) particles is examined to improve the absorber surface temperature of the solar still absorber plate, which is the major component for increased distillate yield. Various weight percentages of Si particles were introduced in paint and coated on the aluminum absorber surface. Extensive indoor (using a self-made halogen light-based solar simulator) and outdoor testing were conducted to optimize the concentration. The coatings with 15 wt % Si in the paint exhibited the highest increase in temperature, namely, 98.5 °C under indoor controlled conditions at 1000 W/m<sup>2</sup> irradiation, which is 65.81% higher than a bare aluminum plate and 37.09% higher compared to a black paint-coated aluminum plate. On the other hand, coatings with 10 wt % Si reached up to 73.2 °C under uncontrolled outdoor conditions compared to 68.8 °C for the black paint-coated aluminum plate. A further increase in concentration did not improve the surface temperature, which was due to an excessive increase in thermal conductivity and high convective heat losses.
format	article
author	Shwe Sin Han Usman Ghafoor Tareq Saeed Hassan Elahi Usman Masud Laveet Kumar Jeyraj Selvaraj Muhammad Shakeel Ahmad
author_facet	Shwe Sin Han Usman Ghafoor Tareq Saeed Hassan Elahi Usman Masud Laveet Kumar Jeyraj Selvaraj Muhammad Shakeel Ahmad
author_sort	Shwe Sin Han
title	Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
title_short	Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
title_full	Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
title_fullStr	Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
title_full_unstemmed	Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers
title_sort	silicon particles/black paint coating for performance enhancement of solar absorbers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/12a424b2ee1d44c29dcb59a63ed52aa3
work_keys_str_mv	AT shwesinhan siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT usmanghafoor siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT tareqsaeed siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT hassanelahi siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT usmanmasud siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT laveetkumar siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT jeyrajselvaraj siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers AT muhammadshakeelahmad siliconparticlesblackpaintcoatingforperformanceenhancementofsolarabsorbers
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Silicon Particles/Black Paint Coating for Performance Enhancement of Solar Absorbers

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