Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO<sub>2</sub>)-bound CuFeMnO<sub>4</sub> Absorber

Charles Opiyo Ayieko; Robinson Juma Musembi; Benard Odhiambo Aduda; Alex Ogacho; Pushpendra Jain

doi:doi:10.11648/j.ajme.20200601.12

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Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO₂)-bound CuFeMnO₄ Absorber

Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain

Published in American Journal of Modern Energy (Volume 6, Issue 1)

Received: 28 August 2019 Accepted: 18 September 2019 Published: 10 January 2020

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Abstract

The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated either to compliment or to replace existing ones. This study focuses on CuFeMnO₄ absorber paint by addressing aspects which have little attention regarding improvement of optical absorption for higher efficiency such as texturing the metal substrates on which to coat CuFeMnO₄ absorber paint. In this study, texturing was done controllably in order to match the incoming solar radiation wavelength and the surface topography and morphology. Textured and untextured aluminum sheets coated with titanium dioxide (TiO₂)-bound CuFeMnO₄ absorber paint were used to fabricate prototype flat plate solar thermal collectors. Titanium dioxide (TiO₂) was chosen here as binder to a spectrally selective CuFeMnO₄ absorber paint. The TiO₂-bound CuFeMnO₄ absorber paint was applied by a simple, cheap and up-scalable dip coating method over the aluminum sheets. The aluminum sheets were electro-chemically textured to enhance optical absorption and photo-thermal conversion efficiency for both the textured and untextured prototypes were compared. The efficiency characterization of the prototype collectors was done by measuring the global solar irradiance, fluid inlet, fluid outlet and ambient temperature. Both instantaneous and steady-state efficiencies were determined mathematically, and it was found that the prototype collector whose absorber plates were textured recorded higher instantaneous and steady-state efficiencies compared to the collector fabricated from untextured aluminum plates.

Published in	American Journal of Modern Energy (Volume 6, Issue 1)
DOI	10.11648/j.ajme.20200601.12
Page(s)	9-15
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Aluminum, Texturing, Conversion Efficiency, Solar Energy, (TiO₂)-bound, CuFeMnO₄

References

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[7]	Ayieko, C. O., R. J. Musembi, S. M. Waita, B. O. Aduda, P. K. Jain (2012). Structural and Optical Characterization of Nitrogen-doped TiO2 Thin Films Deposited by Spray Pyrolysis on Fluorine Doped Tin Oxide (FTO) Coated Glass Slides. International Journal of Energy Engineering, 2 (3), 67-72.
[8]	Wäckelgård, E., Mattsson, A., Bartali, R., Gerosa, R., Gottardi, G., Gustavsson, F.,... & Rivolta, B. (2015). Development of W–SiO2 and Nb–TiO2 solar absorber coatings for combined heat and power systems at intermediate operation temperatures. Solar Energy Materials and Solar Cells, 133, 180-193.
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[11]	Zeng, L., Yi, Y., Hong, C., Liu, J., Feng, N., Duan, X., B. A. (2006). Efficiency enhancement in Si solar cells by textured photonic crystal back reflector. Applied Physics Letters, 89 (11), 11111.
[12]	Nahar, N. M. (2017). Selective coatings on flat-plate solar collectors. International Energy Journal, 3 (1).
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Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain. (2020). Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. American Journal of Modern Energy, 6(1), 9-15. https://doi.org/10.11648/j.ajme.20200601.12

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ACS Style

Charles Opiyo Ayieko; Robinson Juma Musembi; Benard Odhiambo Aduda; Alex Ogacho; Pushpendra Jain. Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. Am. J. Mod. Energy 2020, 6(1), 9-15. doi: 10.11648/j.ajme.20200601.12

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AMA Style

Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain. Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. Am J Mod Energy. 2020;6(1):9-15. doi: 10.11648/j.ajme.20200601.12

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@article{10.11648/j.ajme.20200601.12,
  author = {Charles Opiyo Ayieko and Robinson Juma Musembi and Benard Odhiambo Aduda and Alex Ogacho and Pushpendra Jain},
  title = {Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber},
  journal = {American Journal of Modern Energy},
  volume = {6},
  number = {1},
  pages = {9-15},
  doi = {10.11648/j.ajme.20200601.12},
  url = {https://doi.org/10.11648/j.ajme.20200601.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajme.20200601.12},
  abstract = {The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated either to compliment or to replace existing ones. This study focuses on CuFeMnO4 absorber paint by addressing aspects which have little attention regarding improvement of optical absorption for higher efficiency such as texturing the metal substrates on which to coat CuFeMnO4 absorber paint. In this study, texturing was done controllably in order to match the incoming solar radiation wavelength and the surface topography and morphology. Textured and untextured aluminum sheets coated with titanium dioxide (TiO2)-bound CuFeMnO4 absorber paint were used to fabricate prototype flat plate solar thermal collectors. Titanium dioxide (TiO2) was chosen here as binder to a spectrally selective CuFeMnO4 absorber paint. The TiO2-bound CuFeMnO4 absorber paint was applied by a simple, cheap and up-scalable dip coating method over the aluminum sheets. The aluminum sheets were electro-chemically textured to enhance optical absorption and photo-thermal conversion efficiency for both the textured and untextured prototypes were compared. The efficiency characterization of the prototype collectors was done by measuring the global solar irradiance, fluid inlet, fluid outlet and ambient temperature. Both instantaneous and steady-state efficiencies were determined mathematically, and it was found that the prototype collector whose absorber plates were textured recorded higher instantaneous and steady-state efficiencies compared to the collector fabricated from untextured aluminum plates.},
 year = {2020}
}

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TY  - JOUR
T1  - Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber
AU  - Charles Opiyo Ayieko
AU  - Robinson Juma Musembi
AU  - Benard Odhiambo Aduda
AU  - Alex Ogacho
AU  - Pushpendra Jain
Y1  - 2020/01/10
PY  - 2020
N1  - https://doi.org/10.11648/j.ajme.20200601.12
DO  - 10.11648/j.ajme.20200601.12
T2  - American Journal of Modern Energy
JF  - American Journal of Modern Energy
JO  - American Journal of Modern Energy
SP  - 9
EP  - 15
PB  - Science Publishing Group
SN  - 2575-3797
UR  - https://doi.org/10.11648/j.ajme.20200601.12
AB  - The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated either to compliment or to replace existing ones. This study focuses on CuFeMnO4 absorber paint by addressing aspects which have little attention regarding improvement of optical absorption for higher efficiency such as texturing the metal substrates on which to coat CuFeMnO4 absorber paint. In this study, texturing was done controllably in order to match the incoming solar radiation wavelength and the surface topography and morphology. Textured and untextured aluminum sheets coated with titanium dioxide (TiO2)-bound CuFeMnO4 absorber paint were used to fabricate prototype flat plate solar thermal collectors. Titanium dioxide (TiO2) was chosen here as binder to a spectrally selective CuFeMnO4 absorber paint. The TiO2-bound CuFeMnO4 absorber paint was applied by a simple, cheap and up-scalable dip coating method over the aluminum sheets. The aluminum sheets were electro-chemically textured to enhance optical absorption and photo-thermal conversion efficiency for both the textured and untextured prototypes were compared. The efficiency characterization of the prototype collectors was done by measuring the global solar irradiance, fluid inlet, fluid outlet and ambient temperature. Both instantaneous and steady-state efficiencies were determined mathematically, and it was found that the prototype collector whose absorber plates were textured recorded higher instantaneous and steady-state efficiencies compared to the collector fabricated from untextured aluminum plates.
VL  - 6
IS  - 1
ER  -

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Author Information

Charles Opiyo Ayieko

Department of Physics, University of Nairobi, Nairobi, Kenya
Robinson Juma Musembi

Department of Physics, University of Nairobi, Nairobi, Kenya
Benard Odhiambo Aduda

Department of Physics, University of Nairobi, Nairobi, Kenya
Alex Ogacho

Department of Physics, University of Nairobi, Nairobi, Kenya
Pushpendra Jain

Department of Physics, University of Botswana, Gaborone, Botswana

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Plain Text BibTeX RIS

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Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain. (2020). Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. American Journal of Modern Energy, 6(1), 9-15. https://doi.org/10.11648/j.ajme.20200601.12

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ACS Style

Charles Opiyo Ayieko; Robinson Juma Musembi; Benard Odhiambo Aduda; Alex Ogacho; Pushpendra Jain. Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. Am. J. Mod. Energy 2020, 6(1), 9-15. doi: 10.11648/j.ajme.20200601.12

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AMA Style

Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain. Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. Am J Mod Energy. 2020;6(1):9-15. doi: 10.11648/j.ajme.20200601.12

Copy | Download

@article{10.11648/j.ajme.20200601.12,
  author = {Charles Opiyo Ayieko and Robinson Juma Musembi and Benard Odhiambo Aduda and Alex Ogacho and Pushpendra Jain},
  title = {Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber},
  journal = {American Journal of Modern Energy},
  volume = {6},
  number = {1},
  pages = {9-15},
  doi = {10.11648/j.ajme.20200601.12},
  url = {https://doi.org/10.11648/j.ajme.20200601.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajme.20200601.12},
  abstract = {The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated either to compliment or to replace existing ones. This study focuses on CuFeMnO4 absorber paint by addressing aspects which have little attention regarding improvement of optical absorption for higher efficiency such as texturing the metal substrates on which to coat CuFeMnO4 absorber paint. In this study, texturing was done controllably in order to match the incoming solar radiation wavelength and the surface topography and morphology. Textured and untextured aluminum sheets coated with titanium dioxide (TiO2)-bound CuFeMnO4 absorber paint were used to fabricate prototype flat plate solar thermal collectors. Titanium dioxide (TiO2) was chosen here as binder to a spectrally selective CuFeMnO4 absorber paint. The TiO2-bound CuFeMnO4 absorber paint was applied by a simple, cheap and up-scalable dip coating method over the aluminum sheets. The aluminum sheets were electro-chemically textured to enhance optical absorption and photo-thermal conversion efficiency for both the textured and untextured prototypes were compared. The efficiency characterization of the prototype collectors was done by measuring the global solar irradiance, fluid inlet, fluid outlet and ambient temperature. Both instantaneous and steady-state efficiencies were determined mathematically, and it was found that the prototype collector whose absorber plates were textured recorded higher instantaneous and steady-state efficiencies compared to the collector fabricated from untextured aluminum plates.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber
AU  - Charles Opiyo Ayieko
AU  - Robinson Juma Musembi
AU  - Benard Odhiambo Aduda
AU  - Alex Ogacho
AU  - Pushpendra Jain
Y1  - 2020/01/10
PY  - 2020
N1  - https://doi.org/10.11648/j.ajme.20200601.12
DO  - 10.11648/j.ajme.20200601.12
T2  - American Journal of Modern Energy
JF  - American Journal of Modern Energy
JO  - American Journal of Modern Energy
SP  - 9
EP  - 15
PB  - Science Publishing Group
SN  - 2575-3797
UR  - https://doi.org/10.11648/j.ajme.20200601.12
AB  - The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated either to compliment or to replace existing ones. This study focuses on CuFeMnO4 absorber paint by addressing aspects which have little attention regarding improvement of optical absorption for higher efficiency such as texturing the metal substrates on which to coat CuFeMnO4 absorber paint. In this study, texturing was done controllably in order to match the incoming solar radiation wavelength and the surface topography and morphology. Textured and untextured aluminum sheets coated with titanium dioxide (TiO2)-bound CuFeMnO4 absorber paint were used to fabricate prototype flat plate solar thermal collectors. Titanium dioxide (TiO2) was chosen here as binder to a spectrally selective CuFeMnO4 absorber paint. The TiO2-bound CuFeMnO4 absorber paint was applied by a simple, cheap and up-scalable dip coating method over the aluminum sheets. The aluminum sheets were electro-chemically textured to enhance optical absorption and photo-thermal conversion efficiency for both the textured and untextured prototypes were compared. The efficiency characterization of the prototype collectors was done by measuring the global solar irradiance, fluid inlet, fluid outlet and ambient temperature. Both instantaneous and steady-state efficiencies were determined mathematically, and it was found that the prototype collector whose absorber plates were textured recorded higher instantaneous and steady-state efficiencies compared to the collector fabricated from untextured aluminum plates.
VL  - 6
IS  - 1
ER  -

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