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Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia

Received: 11 August 2019     Accepted: 17 October 2019     Published: 8 November 2019
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Abstract

The detailed knowledge of the local solar radiation is important but, measuring instruments are not readily available in many places, particularly in Ethiopia. Therefore, this work focused on the application of climate data to compare sunshine and temperature based empirical equation of the global solar radiation in Kombolcha sites, Amhara region, Ethiopia. For data obtained in a period of 2008 to 2017 from the Kombolcha meteorological agency correlations be tested for errors using: Mean Bias error (MBE), Root Mean Square Error (RMSE), Mean Percentage Error (MPE), and correlation Coefficient (r). The latest computing MATLAB soft ware and excel spread sheet has been used for the entire analysis. The empirical equation having the least error was selected for Kombolcha sites. Therefore, according to accuracy the Hargreaves and Samani empirical equation is suitable for Kombolcha sites than Angstrom-Prescott empirical equation. The abundant average global solar radiation of 6.19 KWh/m2/day and 7.09 KWh/m2/day was estimated using sun shine and temperature based empirical equation respectively. This result showed that there is good solar potential in Kombolcha, Amhara region, Ethiopia.

Published in Journal of Energy, Environmental & Chemical Engineering (Volume 4, Issue 3)
DOI 10.11648/j.jeece.20190403.12
Page(s) 39-46
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), 2019. Published by Science Publishing Group

Keywords

Meteorological Parameters, Extraterrestrial Solar Radiation, Global Solar Radiation

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  • APA Style

    Tegenu Argaw Woldegiyorgis. (2019). Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia. Journal of Energy, Environmental & Chemical Engineering, 4(3), 39-46. https://doi.org/10.11648/j.jeece.20190403.12

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    ACS Style

    Tegenu Argaw Woldegiyorgis. Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia. J. Energy Environ. Chem. Eng. 2019, 4(3), 39-46. doi: 10.11648/j.jeece.20190403.12

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    AMA Style

    Tegenu Argaw Woldegiyorgis. Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia. J Energy Environ Chem Eng. 2019;4(3):39-46. doi: 10.11648/j.jeece.20190403.12

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  • @article{10.11648/j.jeece.20190403.12,
      author = {Tegenu Argaw Woldegiyorgis},
      title = {Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia},
      journal = {Journal of Energy, Environmental & Chemical Engineering},
      volume = {4},
      number = {3},
      pages = {39-46},
      doi = {10.11648/j.jeece.20190403.12},
      url = {https://doi.org/10.11648/j.jeece.20190403.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeece.20190403.12},
      abstract = {The detailed knowledge of the local solar radiation is important but, measuring instruments are not readily available in many places, particularly in Ethiopia. Therefore, this work focused on the application of climate data to compare sunshine and temperature based empirical equation of the global solar radiation in Kombolcha sites, Amhara region, Ethiopia. For data obtained in a period of 2008 to 2017 from the Kombolcha meteorological agency correlations be tested for errors using: Mean Bias error (MBE), Root Mean Square Error (RMSE), Mean Percentage Error (MPE), and correlation Coefficient (r). The latest computing MATLAB soft ware and excel spread sheet has been used for the entire analysis. The empirical equation having the least error was selected for Kombolcha sites. Therefore, according to accuracy the Hargreaves and Samani empirical equation is suitable for Kombolcha sites than Angstrom-Prescott empirical equation. The abundant average global solar radiation of 6.19 KWh/m2/day and 7.09 KWh/m2/day was estimated using sun shine and temperature based empirical equation respectively. This result showed that there is good solar potential in Kombolcha, Amhara region, Ethiopia.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Estimation of Global Solar Radiation on Horizontal Surface from Sun Shine Hours and Temperature at Kombolcha, Amhara Region, Ethiopia
    AU  - Tegenu Argaw Woldegiyorgis
    Y1  - 2019/11/08
    PY  - 2019
    N1  - https://doi.org/10.11648/j.jeece.20190403.12
    DO  - 10.11648/j.jeece.20190403.12
    T2  - Journal of Energy, Environmental & Chemical Engineering
    JF  - Journal of Energy, Environmental & Chemical Engineering
    JO  - Journal of Energy, Environmental & Chemical Engineering
    SP  - 39
    EP  - 46
    PB  - Science Publishing Group
    SN  - 2637-434X
    UR  - https://doi.org/10.11648/j.jeece.20190403.12
    AB  - The detailed knowledge of the local solar radiation is important but, measuring instruments are not readily available in many places, particularly in Ethiopia. Therefore, this work focused on the application of climate data to compare sunshine and temperature based empirical equation of the global solar radiation in Kombolcha sites, Amhara region, Ethiopia. For data obtained in a period of 2008 to 2017 from the Kombolcha meteorological agency correlations be tested for errors using: Mean Bias error (MBE), Root Mean Square Error (RMSE), Mean Percentage Error (MPE), and correlation Coefficient (r). The latest computing MATLAB soft ware and excel spread sheet has been used for the entire analysis. The empirical equation having the least error was selected for Kombolcha sites. Therefore, according to accuracy the Hargreaves and Samani empirical equation is suitable for Kombolcha sites than Angstrom-Prescott empirical equation. The abundant average global solar radiation of 6.19 KWh/m2/day and 7.09 KWh/m2/day was estimated using sun shine and temperature based empirical equation respectively. This result showed that there is good solar potential in Kombolcha, Amhara region, Ethiopia.
    VL  - 4
    IS  - 3
    ER  - 

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Author Information
  • Department of Physics, Wollo University, Dessie, Ethiopia

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