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Modeling and comparative analysis of solar drying behavior of potatoes

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  • Djebli, Ahmed
  • Hanini, Salah
  • Badaoui, Ouassila
  • Haddad, Brahim
  • Benhamou, Amina

Abstract

Potatoes are a very high demand product in the consumer market and are widely available everywhere in Algeria. With the extensive levels of solar energy across the country, solar drying becomes a natural avenue for the production of solar dried potatoes as a new prospective commercial product. This paper is a study of the drying process of potatoes using an indirect and a mixed solar dryer with forced convection and a comparison of their respective performances. Experimental results indicated that the mixed solar dryer had the slowest drying rate compared to the indirect solar dryer with drying times of 4 h 45min and 3 h 40min respectively, even though the temperature at the tray level in the mixed solar dryer was higher than that of the indirect solar dryer. Fourier series and Laplace transforms were used to solve the diffusivity equation. Seven theoretical models were investigated and their relative accuracy validated against experimental data. Two new dimensionless models were found to best fit the drying curve of potato slices using the two dryers. The proposed models were found to be more accurate for charactering the drying process of Sultana grapes, chili peppers, bananas, mangoes and cassava, according to models reported in the literature under different operating conditions using various solar dryer designs.

Suggested Citation

  • Djebli, Ahmed & Hanini, Salah & Badaoui, Ouassila & Haddad, Brahim & Benhamou, Amina, 2020. "Modeling and comparative analysis of solar drying behavior of potatoes," Renewable Energy, Elsevier, vol. 145(C), pages 1494-1506.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1494-1506
    DOI: 10.1016/j.renene.2019.07.083
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    Citations

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    Cited by:

    1. Jun-Wen Bai & Yi Dai & Yu-Chi Wang & Jian-Rong Cai & Lu Zhang & Xiao-Yu Tian, 2022. "Potato Slices Drying: Pretreatment Affects the Three-Dimensional Appearance and Quality Attributes," Agriculture, MDPI, vol. 12(11), pages 1-17, November.
    2. Lamrani, Bilal & Elmrabet, Yasmine & Mathew, Ibeh & Bekkioui, Naoual & Etim, Promise & Chahboun, Adil & Draoui, Abdeslam & Ndukwu, Macmanus Chinenye, 2022. "Energy, economic analysis and mathematical modelling of mixed-mode solar drying of potato slices with thermal storage loaded V-groove collector: Application to Maghreb region," Renewable Energy, Elsevier, vol. 200(C), pages 48-58.
    3. Shiva Gorjian & Behnam Hosseingholilou & Laxmikant D. Jathar & Haniyeh Samadi & Samiran Samanta & Atul A. Sagade & Karunesh Kant & Ravishankar Sathyamurthy, 2021. "Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers," Sustainability, MDPI, vol. 13(13), pages 1-32, June.
    4. Badaoui, Ouassila & Djebli, Ahmed & Hanini, Salah, 2022. "Solar drying of apple and orange waste: Evaluation of a new thermodynamic approach, and characterization analysis," Renewable Energy, Elsevier, vol. 199(C), pages 1593-1605.
    5. Liu, Zi-Liang & Zielinska, Magdalena & Yang, Xu-Hai & Yu, Xian-Long & Chen, Chang & Wang, Hui & Wang, Jun & Pan, Zhongli & Xiao, Hong-Wei, 2021. "Moisturizing strategy for enhanced convective drying of mushroom slices," Renewable Energy, Elsevier, vol. 172(C), pages 728-739.
    6. Ouaabou, Rachida & Nabil, Bouchra & Ouhammou, Mourad & Idlimam, Ali & Lamharrar, Abdelkader & Ennahli, Said & Hanine, Hafida & Mahrouz, Mostafa, 2020. "Impact of solar drying process on drying kinetics, and on bioactive profile of Moroccan sweet cherry," Renewable Energy, Elsevier, vol. 151(C), pages 908-918.
    7. Liu, He & Tian, You & Liu, Jia'ao & Zhang, Dongwei & Wu, Xuehong & Li, Zengyao, 2023. "Performance analysis of solar drying system with sunlight transparent thermally insulating aerogels," Energy, Elsevier, vol. 269(C).
    8. EL-Mesery, Hany S. & EL-Seesy, Ahmed I. & Hu, Zicheng & Li, Yang, 2022. "Recent developments in solar drying technology of food and agricultural products: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).

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