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Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector

Received: 20 September 2019    Accepted: 17 October 2019    Published: 28 October 2019
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Abstract

This work focused on the numerical study of the thermal performance of a solar collector in order to improve the indirect solar drying of fruit in an environment with high solar potential. It aims to contribute to the reduction of post-harvest losses observed during periods of high production. From the retained physical model, an equivalent electrical scheme has been established and energy balance was applied to each slice of the model using the nodal method. The obtained different equations were discretized using the implicit method of finite differences, and solved by the iterative Gaussian Pivot method written in FORTRAN program. The obtained results showed that, from April to June (mangoes harvest period in Ngaoundere city) the raining period in Adamawa Region, the solar air collector that length to width ratio is between 2 and 3, is sufficient to carry out indirect solar drying of fruits with forced convection. The outlet air temperature of the solar collector was between 45 and 60°C with an average value of 50°C, and the thermal efficiency was between 65 and 95% with an average value of 80%. Double glazing improves efficiency of the solar air collector for a small footprint.

Published in Science Journal of Energy Engineering (Volume 7, Issue 4)
DOI 10.11648/j.sjee.20190704.13
Page(s) 67-76
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), 2024. Published by Science Publishing Group

Keywords

Thermal Performance, Solar Collector, Unidirectional Flow, Double Air Pass, Modeling

References
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  • APA Style

    Abraham Tetang Fokone, Adrian-Gabriel Ghiaus. (2019). Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector. Science Journal of Energy Engineering, 7(4), 67-76. https://doi.org/10.11648/j.sjee.20190704.13

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    ACS Style

    Abraham Tetang Fokone; Adrian-Gabriel Ghiaus. Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector. Sci. J. Energy Eng. 2019, 7(4), 67-76. doi: 10.11648/j.sjee.20190704.13

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    AMA Style

    Abraham Tetang Fokone, Adrian-Gabriel Ghiaus. Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector. Sci J Energy Eng. 2019;7(4):67-76. doi: 10.11648/j.sjee.20190704.13

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  • @article{10.11648/j.sjee.20190704.13,
      author = {Abraham Tetang Fokone and Adrian-Gabriel Ghiaus},
      title = {Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector},
      journal = {Science Journal of Energy Engineering},
      volume = {7},
      number = {4},
      pages = {67-76},
      doi = {10.11648/j.sjee.20190704.13},
      url = {https://doi.org/10.11648/j.sjee.20190704.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20190704.13},
      abstract = {This work focused on the numerical study of the thermal performance of a solar collector in order to improve the indirect solar drying of fruit in an environment with high solar potential. It aims to contribute to the reduction of post-harvest losses observed during periods of high production. From the retained physical model, an equivalent electrical scheme has been established and energy balance was applied to each slice of the model using the nodal method. The obtained different equations were discretized using the implicit method of finite differences, and solved by the iterative Gaussian Pivot method written in FORTRAN program. The obtained results showed that, from April to June (mangoes harvest period in Ngaoundere city) the raining period in Adamawa Region, the solar air collector that length to width ratio is between 2 and 3, is sufficient to carry out indirect solar drying of fruits with forced convection. The outlet air temperature of the solar collector was between 45 and 60°C with an average value of 50°C, and the thermal efficiency was between 65 and 95% with an average value of 80%. Double glazing improves efficiency of the solar air collector for a small footprint.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Influence of Geometric Parameters on the Thermal Performances of a Double Air Pass Solar Collector
    AU  - Abraham Tetang Fokone
    AU  - Adrian-Gabriel Ghiaus
    Y1  - 2019/10/28
    PY  - 2019
    N1  - https://doi.org/10.11648/j.sjee.20190704.13
    DO  - 10.11648/j.sjee.20190704.13
    T2  - Science Journal of Energy Engineering
    JF  - Science Journal of Energy Engineering
    JO  - Science Journal of Energy Engineering
    SP  - 67
    EP  - 76
    PB  - Science Publishing Group
    SN  - 2376-8126
    UR  - https://doi.org/10.11648/j.sjee.20190704.13
    AB  - This work focused on the numerical study of the thermal performance of a solar collector in order to improve the indirect solar drying of fruit in an environment with high solar potential. It aims to contribute to the reduction of post-harvest losses observed during periods of high production. From the retained physical model, an equivalent electrical scheme has been established and energy balance was applied to each slice of the model using the nodal method. The obtained different equations were discretized using the implicit method of finite differences, and solved by the iterative Gaussian Pivot method written in FORTRAN program. The obtained results showed that, from April to June (mangoes harvest period in Ngaoundere city) the raining period in Adamawa Region, the solar air collector that length to width ratio is between 2 and 3, is sufficient to carry out indirect solar drying of fruits with forced convection. The outlet air temperature of the solar collector was between 45 and 60°C with an average value of 50°C, and the thermal efficiency was between 65 and 95% with an average value of 80%. Double glazing improves efficiency of the solar air collector for a small footprint.
    VL  - 7
    IS  - 4
    ER  - 

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Author Information
  • Laboratory of Energetic and Thermal Applied, ENSAI/University of Ngaoundere, Ngaoundere, Cameroon; Doctoral School, Technical University of Civil Engineering of Bucharest, Bucharest, Romania

  • Doctoral School, Technical University of Civil Engineering of Bucharest, Bucharest, Romania

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