Research Article | | Peer-Reviewed

Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger

Received: 3 February 2026     Accepted: 16 March 2026     Published: 28 March 2026
Views:       Downloads:
Abstract

In this article, we investigate the possibility of improving the performance of a mixed solar dryer designed for meat drying. The drying process takes place under an average ambient temperature of 35.5°C. The maximum solar radiation intensities recorded during the two test days were 999 W/m² and 1072 W/m², respectively. The average solar radiation measured between 9:00 a.m. and 4:00 p.m. during the test days was 841.91 W/m². The experiments were conducted on fresh meat over two (2) days. On the first day, the mass of fresh meat, or initial mass (min), was 32.9 kg. At the end of drying, the final mass (mf) was 9.03 kg, corresponding to a mass reduction rate (MRR) of 72.5%. On the second day, the initial mass (min) was 30 kg, and after drying, the final mass (mf) was 9.90 kg, corresponding to a mass reduction rate (MRR) of 67%. To ensure proper drying, the meat was cut and spread to a thickness of 0.5 cm. The loaded test results indicate a temperature range between 33°C and 68°C, with an average drying temperature of 50.5°C across the different tray levels inside the dryer. An average air velocity of 1.8 m/s was recorded at the inlet and 6 m/s at the outlet. The exact drying time was 3 hours.

Published in Journal of Energy and Natural Resources (Volume 15, Issue 1)
DOI 10.11648/j.jenr.20261501.15
Page(s) 33-44
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), 2026. Published by Science Publishing Group

Keywords

Contribution, Drying, Mixed Dryer, Drying Time, Performance, Climatic Parameters

References
[1] Benseddik, Abdellouahab. 2018. Improvement of the Quality and Performance of Solar Drying of Agro-Food Products by the Application of Controlled Instantaneous Relaxation (DIC) Treatment: Experimental Analysis, Empirical and Phenomenological Modeling. Doctoral Thesis in Energy Mechanics, Abou-Bekr Belkaid University, Tlemcen, p. 6.
[2] Tarminzi, M. A. S. M., Razak, A. A., Azmi, M. A. A., Ming, Y. H., Akramin, M. R. M., Mokhtar, N. M., & Sharol, A. F. (2021). [Title of the article]. International Journal of Engineering Technology and Sciences, 8(1), 1–13.
[3] Jiang, N., Ma, J., Ma, R., Zhang, Y., Chen, P., Ren, M., & Wang, C. (2023). Effect of slice thickness and hot-air temperature on the kinetics of hot-air drying of crabapple slices. Food Science and Technology, Campinas, 43, e100422.
[4] Tomar, V., Tiwari, G., & Norton, B. (2017). Solar dryers for tropical food preservation: Thermophysics of crops, systems and components. Solar Energy, 154, pp. 2-13.
[5] Rasamitiavina, A. F. (2020). Design and fabrication of a solar dryer for vegetables: Application for dehydrated soup. Master’s Thesis, University of Antananarivo, Higher Polytechnic School of Antananarivo, Field: Engineering Sciences and Techniques, Specialization: Chemical and Industrial Process Engineering, Degree: Engineer in Chemical and Industrial Process Engineering.
[6] “Solar air collectors – PDF Free Download.” (n.d.). Retrieved October 3, 2022, from.
[7] IRRAD in NIG. (n.d.). Solar radiation measurement data in Niger. Retrieved March 10, 2024, from
[8] Gupta, V., Sabharwal Gupta, K., & Khare, R. (2021). Experimental analysis for drying of potato slices on a detachable solar greenhouse dryer. Materials Today: Proceedings, 47, 6269–6273.
[9] Nadir, N. (2021). Theoretical and experimental approach to solar drying of agro-food products. Doctoral Thesis in Energy Physics, Kasdi Merbah University of Ouargla, Faculty of Mathematics and Physical Sciences, Department of Physics.
[10] Damene, D. (2022). Effect of permeability variation in a porous medium under natural convection. Doctoral Thesis, Kasdi Merbah University of Ouargla, Department of Mechanical Engineering. Publicly defended on June 30, 2022.
[11] O. Aumporn, "Contribution to the Study of the performance of a greenhouse dryer with heat storage in phase change materials", University of Perpignan Via Domitia, France, 2018.
[12] Kadi, R. A. M. (2021). Drying of tchoukou (dry Nigerien cheese) using a direct solar dryer: Technical and economic aspects. Master’s Thesis for the Engineer Diploma, International Institute for Water and Environnement Engineering (2iE), Specialization: Electrical and Energy Engineering. July 23, 2021.
[13] Ennissioui, J., Benghoulam, E. M., & El Rhafiki, T. (2023). Experimental study of a natural convection indirect solar dryer. Heliyon, 9(8), e18893.
Cite This Article
  • APA Style

    Roufaï, S. M. A., Hamidou, A. S., Safiatou, S. H., Hadiza, I. N., Boukar, M. (2026). Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger. Journal of Energy and Natural Resources, 15(1), 33-44. https://doi.org/10.11648/j.jenr.20261501.15

    Copy | Download

    ACS Style

    Roufaï, S. M. A.; Hamidou, A. S.; Safiatou, S. H.; Hadiza, I. N.; Boukar, M. Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger. J. Energy Nat. Resour. 2026, 15(1), 33-44. doi: 10.11648/j.jenr.20261501.15

    Copy | Download

    AMA Style

    Roufaï SMA, Hamidou AS, Safiatou SH, Hadiza IN, Boukar M. Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger. J Energy Nat Resour. 2026;15(1):33-44. doi: 10.11648/j.jenr.20261501.15

    Copy | Download

  • @article{10.11648/j.jenr.20261501.15,
      author = {Saley Moussa Ahmed Roufaï and Arouna Saley Hamidou and Souley Hassane Safiatou and Issaka Nomao Hadiza and Makinta Boukar},
      title = {Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger},
      journal = {Journal of Energy and Natural Resources},
      volume = {15},
      number = {1},
      pages = {33-44},
      doi = {10.11648/j.jenr.20261501.15},
      url = {https://doi.org/10.11648/j.jenr.20261501.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20261501.15},
      abstract = {In this article, we investigate the possibility of improving the performance of a mixed solar dryer designed for meat drying. The drying process takes place under an average ambient temperature of 35.5°C. The maximum solar radiation intensities recorded during the two test days were 999 W/m² and 1072 W/m², respectively. The average solar radiation measured between 9:00 a.m. and 4:00 p.m. during the test days was 841.91 W/m². The experiments were conducted on fresh meat over two (2) days. On the first day, the mass of fresh meat, or initial mass (min), was 32.9 kg. At the end of drying, the final mass (mf) was 9.03 kg, corresponding to a mass reduction rate (MRR) of 72.5%. On the second day, the initial mass (min) was 30 kg, and after drying, the final mass (mf) was 9.90 kg, corresponding to a mass reduction rate (MRR) of 67%. To ensure proper drying, the meat was cut and spread to a thickness of 0.5 cm. The loaded test results indicate a temperature range between 33°C and 68°C, with an average drying temperature of 50.5°C across the different tray levels inside the dryer. An average air velocity of 1.8 m/s was recorded at the inlet and 6 m/s at the outlet. The exact drying time was 3 hours.},
     year = {2026}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Performance of Mixed Solar Dryer for Meat in the Sahel Area of Niger
    AU  - Saley Moussa Ahmed Roufaï
    AU  - Arouna Saley Hamidou
    AU  - Souley Hassane Safiatou
    AU  - Issaka Nomao Hadiza
    AU  - Makinta Boukar
    Y1  - 2026/03/28
    PY  - 2026
    N1  - https://doi.org/10.11648/j.jenr.20261501.15
    DO  - 10.11648/j.jenr.20261501.15
    T2  - Journal of Energy and Natural Resources
    JF  - Journal of Energy and Natural Resources
    JO  - Journal of Energy and Natural Resources
    SP  - 33
    EP  - 44
    PB  - Science Publishing Group
    SN  - 2330-7404
    UR  - https://doi.org/10.11648/j.jenr.20261501.15
    AB  - In this article, we investigate the possibility of improving the performance of a mixed solar dryer designed for meat drying. The drying process takes place under an average ambient temperature of 35.5°C. The maximum solar radiation intensities recorded during the two test days were 999 W/m² and 1072 W/m², respectively. The average solar radiation measured between 9:00 a.m. and 4:00 p.m. during the test days was 841.91 W/m². The experiments were conducted on fresh meat over two (2) days. On the first day, the mass of fresh meat, or initial mass (min), was 32.9 kg. At the end of drying, the final mass (mf) was 9.03 kg, corresponding to a mass reduction rate (MRR) of 72.5%. On the second day, the initial mass (min) was 30 kg, and after drying, the final mass (mf) was 9.90 kg, corresponding to a mass reduction rate (MRR) of 67%. To ensure proper drying, the meat was cut and spread to a thickness of 0.5 cm. The loaded test results indicate a temperature range between 33°C and 68°C, with an average drying temperature of 50.5°C across the different tray levels inside the dryer. An average air velocity of 1.8 m/s was recorded at the inlet and 6 m/s at the outlet. The exact drying time was 3 hours.
    VL  - 15
    IS  - 1
    ER  - 

    Copy | Download

Author Information
  • Sections