IDEAS home Printed from https://ideas.repec.org/a/caa/jnlrae/v67y2021i1id48-2020-rae.html
   My bibliography  Save this article

Energy and exergy analyses of okra drying process in a forced convection cabinet dryer

Author

Listed:
  • Abiodun Okunola

    (Department of Agricultural and Biosystems Engineering, College of Engineering, Landmark University, Omu-Aran, Nigeria)

  • Timothy Adekanye
  • Endurance Idahosa

    (Department of Agricultural and Biosystems Engineering, College of Engineering, Landmark University, Omu-Aran, Nigeria)

Abstract

A forced convection automatic cabinet dryer integrated with a data logger was designed and fabricated. The okra samples were dried in the dryer at drying temperatures of 50, 60, and 70 °C and at three different load densities of 200, 300, and 400 g at a continuous air velocity of 0.7 m.s-1. Energy and exergy analyses of the drying process were performed. The obtained results showed that the energy efficiency, energy utilisation, and utilisation ratio increased from 26.59 to 68.24%, 5.47 to 114.36 W, and 0.36 to 0.71 as the temperature increased to 70 °C, respectively. The inflow, outflow, and exergy losses were in the range of 7.02 to 26.14 W, 4.43 to 14.16 W, and 2.59 to 11.98 W, respectively, while exergy efficiency varied from 49.15 to 63.47%. The findings show that exergy efficiencies decrease with an increase in the drying temperature, but increase with a lower load rate. The index of sustainability varies from 2.14 to 2.77, the value increases as the load density decreases while it decreases with a temperature increment.

Suggested Citation

  • Abiodun Okunola & Timothy Adekanye & Endurance Idahosa, 2021. "Energy and exergy analyses of okra drying process in a forced convection cabinet dryer," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 67(1), pages 8-16.
    • Handle: RePEc:caa:jnlrae:v:67:y:2021:i:1:id:48-2020-rae
    DOI: 10.17221/48/2020-RAE
    as

    Download full text from publisher

    File URL: http://rae.agriculturejournals.cz/doi/10.17221/48/2020-RAE.html
    Download Restriction: free of charge
    File URL: http://rae.agriculturejournals.cz/doi/10.17221/48/2020-RAE.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/48/2020-RAE?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Beigi, Mohsen & Tohidi, Mojtaba & Torki-Harchegani, Mehdi, 2017. "Exergetic analysis of deep-bed drying of rough rice in a convective dryer," Energy, Elsevier, vol. 140(P1), pages 374-382.
    2. Ranjbaran, M. & Zare, D., 2013. "Simulation of energetic- and exergetic performance of microwave-assisted fluidized bed drying of soybeans," Energy, Elsevier, vol. 59(C), pages 484-493.
    3. Aviara, Ndubisi A. & Onuoha, Lovelyn N. & Falola, Oluwakemi E. & Igbeka, Joseph C., 2014. "Energy and exergy analyses of native cassava starch drying in a tray dryer," Energy, Elsevier, vol. 73(C), pages 809-817.
    4. Rabha, D.K. & Muthukumar, P. & Somayaji, C., 2017. "Energy and exergy analyses of the solar drying processes of ghost chilli pepper and ginger," Renewable Energy, Elsevier, vol. 105(C), pages 764-773.
    5. Midilli, A. & Kucuk, H., 2003. "Energy and exergy analyses of solar drying process of pistachio," Energy, Elsevier, vol. 28(6), pages 539-556.
    6. Azadbakht, Mohsen & Aghili, Hajar & Ziaratban, Armin & Torshizi, Mohammad Vahedi, 2017. "Application of artificial neural network method to exergy and energy analyses of fluidized bed dryer for potato cubes," Energy, Elsevier, vol. 120(C), pages 947-958.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Timothy Adekanye & Abiodun Okunola & Olumuyiwa Moses & Endurance Idahosa & Yisa Boye & Aminu Saleh, . "Mathematical modeling of drying parameters of moringa oleifera leaves in a cabinet drye," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 0.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. 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.
    2. Tagnamas, Zakaria & Lamsyehe, Hamza & Moussaoui, Haytem & Bahammou, Younes & Kouhila, Mounir & Idlimam, Ali & Lamharrar, Abdelkader, 2021. "Energy and exergy analyses of carob pulp drying system based on a solar collector," Renewable Energy, Elsevier, vol. 163(C), pages 495-503.
    3. Li, Chengjie & Chen, Yifu & Zhang, Xuefeng & Mozafari, Ghazaleh & Fang, Zhuangdong & Cao, Yankai & Li, Changyou, 2022. "Exergy analysis and optimisation of an industrial-scale circulation counter-flow paddy drying process," Energy, Elsevier, vol. 251(C).
    4. Wang, Hui & Torki, Mehdi & Taherian, Arian & Beigi, Mohsen & Xiao, Hong-Mei & Fang, Xiao-Ming, 2023. "Analysis of exergetic performance for a combined ultrasonic power/convective hot air dryer," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    5. Maia, Cristiana Brasil & Ferreira, André Guimarães & Cabezas-Gómez, Luben & de Oliveira Castro Silva, Janaína & de Morais Hanriot, Sérgio, 2017. "Thermodynamic analysis of the drying process of bananas in a small-scale solar updraft tower in Brazil," Renewable Energy, Elsevier, vol. 114(PB), pages 1005-1012.
    6. Erick César, López-Vidaña & Ana Lilia, César-Munguía & Octavio, García-Valladares & Orlando, Salgado Sandoval & Alfredo, Domínguez Niño, 2021. "Energy and exergy analyses of a mixed-mode solar dryer of pear slices (Pyrus communis L)," Energy, Elsevier, vol. 220(C).
    7. Marcin Dębowski & Przemysław Bukowski & Przemysław Kobel & Jerzy Bieniek & Leszek Romański & Bernard Knutel, 2021. "Comparison of Energy Consumption of Cereal Grain Dryer Powered by LPG and Hard Coal in Polish Conditions," Energies, MDPI, vol. 14(14), pages 1-17, July.
    8. Bahammou, Younes & Lamsyehe, Hamza & Kouhila, Mounir & Lamharrar, Abdelkader & Idlimam, Ali & Abdenouri, Naji, 2019. "Valorization of co-products of sardine waste by physical treatment under natural and forced convection solar drying," Renewable Energy, Elsevier, vol. 142(C), pages 110-122.
    9. Di Marco, Paolo & Frigo, Stefano & Gabbrielli, Roberto & Pecchia, Stefano, 2016. "Mathematical modelling and energy performance assessment of air impingement drying systems for the production of tissue paper," Energy, Elsevier, vol. 114(C), pages 201-213.
    10. Rabha, D.K. & Muthukumar, P. & Somayaji, C., 2017. "Energy and exergy analyses of the solar drying processes of ghost chilli pepper and ginger," Renewable Energy, Elsevier, vol. 105(C), pages 764-773.
    11. Bin Li & Changyou Li & Tao Li & Zhiheng Zeng & Wenyan Ou & Chengjie Li, 2019. "Exergetic, Energetic, and Quality Performance Evaluation of Paddy Drying in a Novel Industrial Multi-Field Synergistic Dryer," Energies, MDPI, vol. 12(23), pages 1-19, December.
    12. Erbay, Zafer & Hepbasli, Arif, 2017. "Assessment of cost sources and improvement potentials of a ground-source heat pump food drying system through advanced exergoeconomic analysis method," Energy, Elsevier, vol. 127(C), pages 502-515.
    13. Jankowiak, Lena & Jonkman, Jochem & Rossier-Miranda, Francisco J. & van der Goot, Atze Jan & Boom, Remko M., 2014. "Exergy driven process synthesis for isoflavone recovery from okara," Energy, Elsevier, vol. 74(C), pages 471-483.
    14. Wengang Hao & Shuonan Liu & Baoqi Mi & Yanhua Lai, 2020. "Mathematical Modeling and Performance Analysis of a New Hybrid Solar Dryer of Lemon Slices for Controlling Drying Temperature," Energies, MDPI, vol. 13(2), pages 1-23, January.
    15. Beigi, Mohsen & Tohidi, Mojtaba & Torki-Harchegani, Mehdi, 2017. "Exergetic analysis of deep-bed drying of rough rice in a convective dryer," Energy, Elsevier, vol. 140(P1), pages 374-382.
    16. Hamed Karami & Mohammad Kaveh & Iman Golpour & Esmail Khalife & Robert Rusinek & Bohdan Dobrzański & Marek Gancarz, 2021. "Thermodynamic Evaluation of the Forced Convective Hybrid-Solar Dryer during Drying Process of Rosemary ( Rosmarinus officinalis L.) Leaves," Energies, MDPI, vol. 14(18), pages 1-17, September.
    17. Atalay, Halil, 2019. "Performance analysis of a solar dryer integrated with the packed bed thermal energy storage (TES) system," Energy, Elsevier, vol. 172(C), pages 1037-1052.
    18. Vijayan, S. & Arjunan, T.V. & Kumar, Anil, 2020. "Exergo-environmental analysis of an indirect forced convection solar dryer for drying bitter gourd slices," Renewable Energy, Elsevier, vol. 146(C), pages 2210-2223.
    19. Abiodun A. Okunola & Timothy A. Adekanye & Clinton E. Okonkwo & Mohammad Kaveh & Mariusz Szymanek & Endurance O. Idahosa & Adeniyi T. Olayanju & Krystyna Wojciechowska, 2023. "Drying Characteristics, Kinetic Modeling, Energy and Exergy Analyses of Water Yam ( Dioscorea alata ) in a Hot Air Dryer," Energies, MDPI, vol. 16(4), pages 1-21, February.
    20. Lamidi, Rasaq. O. & Jiang, L. & Pathare, Pankaj B. & Wang, Y.D. & Roskilly, A.P., 2019. "Recent advances in sustainable drying of agricultural produce: A review," Applied Energy, Elsevier, vol. 233, pages 367-385.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlrae:v:67:y:2021:i:1:id:48-2020-rae. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.