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Contribution of Nonlinear Absorption Coefficient and Artificial Roughness Absorber on the Dynamics of a Photovoltaic Thermal Water Panel.

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Title: Contribution of Nonlinear Absorption Coefficient and Artificial Roughness Absorber on the Dynamics of a Photovoltaic Thermal Water Panel.
Authors: Kuate Mbopda, Martial1,2 (AUTHOR) kuatem06@gmail.com, Fopah Lele, Armand3 (AUTHOR), Beya Wakata, Annie Sylvie4 (AUTHOR)
Source: Journal of Electronic Materials. Jul2026, Vol. 55 Issue 7, p5876-5887. 12p.
Subjects: Absorption coefficients, Efficiency of photovoltaic cells, MatLab (Computer software), Heat transfer, Thermal equilibrium, Cooling, Solar collectors
Abstract: This paper presents a theoretical investigation of the combined effect of the nonlinear thermal absorption coefficient and artificial roughness of an absorbent tube on the dynamics of a conventional photovoltaic thermal (PVT) water panel. The roughness and the nonlinear absorption coefficient are localized inside the tubes of the absorbent plate and in the photovoltaic (PV) module, respectively. The analytical expressions for the temperature on each layer of our system are determined from the energy balance equation. The simulations of the analytical expressions obtained are performed in the MATLAB software environment by considering the contributions of roughness, nonlinearity, and their combined effects. The results of our numerical investigations under standard test conditions reveal that the combined effect leads to a greater temperature reduction in the PV module than when roughness and nonlinearity are considered separately. Furthermore, the combined effect induces a reduction in the maximum temperature of the PV module by about 9°C, leading to an improvement of about 0.39% in electrical efficiency. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 194546565
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Contribution of Nonlinear Absorption Coefficient and Artificial Roughness Absorber on the Dynamics of a Photovoltaic Thermal Water Panel.
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  Data: <searchLink fieldCode="AR" term="%22Kuate+Mbopda%2C+Martial%22">Kuate Mbopda, Martial</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> kuatem06@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Fopah+Lele%2C+Armand%22">Fopah Lele, Armand</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Beya+Wakata%2C+Annie+Sylvie%22">Beya Wakata, Annie Sylvie</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Electronic+Materials%22">Journal of Electronic Materials</searchLink>. Jul2026, Vol. 55 Issue 7, p5876-5887. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Absorption+coefficients%22">Absorption coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Efficiency+of+photovoltaic+cells%22">Efficiency of photovoltaic cells</searchLink><br /><searchLink fieldCode="DE" term="%22MatLab+%28Computer+software%29%22">MatLab (Computer software)</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+equilibrium%22">Thermal equilibrium</searchLink><br /><searchLink fieldCode="DE" term="%22Cooling%22">Cooling</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+collectors%22">Solar collectors</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents a theoretical investigation of the combined effect of the nonlinear thermal absorption coefficient and artificial roughness of an absorbent tube on the dynamics of a conventional photovoltaic thermal (PVT) water panel. The roughness and the nonlinear absorption coefficient are localized inside the tubes of the absorbent plate and in the photovoltaic (PV) module, respectively. The analytical expressions for the temperature on each layer of our system are determined from the energy balance equation. The simulations of the analytical expressions obtained are performed in the MATLAB software environment by considering the contributions of roughness, nonlinearity, and their combined effects. The results of our numerical investigations under standard test conditions reveal that the combined effect leads to a greater temperature reduction in the PV module than when roughness and nonlinearity are considered separately. Furthermore, the combined effect induces a reduction in the maximum temperature of the PV module by about 9°C, leading to an improvement of about 0.39% in electrical efficiency. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Electronic Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1007/s11664-026-12859-1
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 5876
    Subjects:
      – SubjectFull: Absorption coefficients
        Type: general
      – SubjectFull: Efficiency of photovoltaic cells
        Type: general
      – SubjectFull: MatLab (Computer software)
        Type: general
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Thermal equilibrium
        Type: general
      – SubjectFull: Cooling
        Type: general
      – SubjectFull: Solar collectors
        Type: general
    Titles:
      – TitleFull: Contribution of Nonlinear Absorption Coefficient and Artificial Roughness Absorber on the Dynamics of a Photovoltaic Thermal Water Panel.
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          Name:
            NameFull: Kuate Mbopda, Martial
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            NameFull: Fopah Lele, Armand
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          Name:
            NameFull: Beya Wakata, Annie Sylvie
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          Dates:
            – D: 01
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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            – TitleFull: Journal of Electronic Materials
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