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Simulation of solar drying of grapes using an integrated heat and mass transfer model

Author

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  • Ramos, Inês N.
  • Brandão, Teresa R.S.
  • Silva, Cristina L.M.

Abstract

A mathematical model was developed to simulate solar drying of grapes, integrating heat and mass transfer models solved by an explicit finite differences method, considering changing boundary conditions. The model simultaneously incorporated shrinkage of the product, changes in effective moisture diffusivity and dependence of thermal properties on water content and temperature. Field experiments were carried out in a mixed mode solar dryer located in the North of Portugal, with pre-blanched grapes. A good prediction of experimental solar drying curves was attained. The mathematical model can be applied for simulating solar drying of different foods, once known their specific thermo-physical properties. Simulations obtained with the developed model can be valuable for predicting accurate drying times and consequently to design, control and optimise the production of dried foods.

Suggested Citation

  • Ramos, Inês N. & Brandão, Teresa R.S. & Silva, Cristina L.M., 2015. "Simulation of solar drying of grapes using an integrated heat and mass transfer model," Renewable Energy, Elsevier, vol. 81(C), pages 896-902.
    • Handle: RePEc:eee:renene:v:81:y:2015:i:c:p:896-902
    DOI: 10.1016/j.renene.2015.04.011
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    Cited by:

    1. Simo-Tagne, Merlin & Ndukwu, Macmanus Chinenye & Zoulalian, André & Bennamoun, Lyes & Kifani-Sahban, Fatima & Rogaume, Yann, 2020. "Numerical analysis and validation of a natural convection mix-mode solar dryer for drying red chilli under variable conditions," Renewable Energy, Elsevier, vol. 151(C), pages 659-673.
    2. Mishustin, Mikhail, 2013. "The impact of economic trends on the dynamics of tax revenues," Ekonomicheskaya Politika / Economic Policy, Russian Presidential Academy of National Economy and Public Administration, pages 62-72, October.
    3. Singh, Pushpendra & Shrivastava, Vipin & Kumar, Anil, 2018. "Recent developments in greenhouse solar drying: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 3250-3262.
    4. Sonthikun, Sonthawi & Chairat, Phaochinnawat & Fardsin, Kitti & Kirirat, Pairoj & Kumar, Anil & Tekasakul, Perapong, 2016. "Computational fluid dynamic analysis of innovative design of solar-biomass hybrid dryer: An experimental validation," Renewable Energy, Elsevier, vol. 92(C), pages 185-191.
    5. Asim Ahmad & Om Prakash & Anil Kumar & Rajeshwari Chatterjee & Shubham Sharma & Vineet Kumar & Kushagra Kulshreshtha & Changhe Li & Elsayed Mohamed Tag Eldin, 2022. "A Comprehensive State-of-the-Art Review on the Recent Developments in Greenhouse Drying," Energies, MDPI, vol. 15(24), pages 1-42, December.
    6. Hamdi, Ilhem & Kooli, Sami & Elkhadraoui, Aymen & Azaizia, Zaineb & Abdelhamid, Fadhel & Guizani, Amenallah, 2018. "Experimental study and numerical modeling for drying grapes under solar greenhouse," Renewable Energy, Elsevier, vol. 127(C), pages 936-946.
    7. Zoukit, Ahmed & El Ferouali, Hicham & Salhi, Issam & Doubabi, Said & Abdenouri, Naji, 2019. "Takagi Sugeno fuzzy modeling applied to an indirect solar dryer operated in both natural and forced convection," Renewable Energy, Elsevier, vol. 133(C), pages 849-860.

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