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Experimental study on triple pass solar air heater with thermal energy storage for drying mint leaves

Author

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  • S. Kesavan
  • T.V. Arjunan

Abstract

Solar dryer is used to preserve agricultural products, save energy consumption and reducing environmental impact. A new type of solar collector has been designed and tested. This study deals with the design of a modular drying system consisting of two functional units, namely a triple pass flat plate air collector with thermal storage and a drying chamber. The flat plate collector is 2 m long, 1 m wide and 0.1 m deep, and incorporates absorber and thermal energy storage unit. Air flows between two glazing during first pass then in the opposite direction through the absorber during second pass and finally through the spaces between units of thermal energy storage and bottom plate into drying chamber. The experiments are conducted for drying mint leaves and the results show that considerable improvement in drying time and moisture removal. It is concluded that the design is compact, sufficiently simple and gives a high thermal performance.

Suggested Citation

  • S. Kesavan & T.V. Arjunan, 2018. "Experimental study on triple pass solar air heater with thermal energy storage for drying mint leaves," International Journal of Energy Technology and Policy, Inderscience Enterprises Ltd, vol. 14(1), pages 34-48.
    • Handle: RePEc:ids:ijetpo:v:14:y:2018:i:1:p:34-48
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    Citations

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    Cited by:

    1. Ndukwu, Macmanus Chinenye & Akpan, Godwin & Okeahialam, Azubuike N. & Umoh, John D. & Ubuoh, Emmanuel A. & Benjamine, Uchechukwu G. & Nwachukwu, Chris & Kalu, Confidence A. & Mbanasor, Jude & Wu, Hong, 2023. "A comparison of the drying kinetics, energy consumption and colour quality of drying medicinal leaves in direct-solar dryer with different colours of collector cover," Renewable Energy, Elsevier, vol. 216(C).
    2. Tuncer, Azim Doğuş & Khanlari, Ataollah, 2023. "Improving the performance of a triple-flow solar air collector using recyclable aluminum cans as extended heat transfer surfaces: An energetic, exergetic, economic and environmental survey," Energy, Elsevier, vol. 282(C).
    3. Khanlari, Ataollah & Tuncer, Azim Doğuş, 2023. "Analysis of an infrared-assisted triple-flow prototype solar drying system with nano-embedded absorber coating: An experimental and numerical study," Renewable Energy, Elsevier, vol. 216(C).
    4. Khanlari, Ataollah & Sözen, Adnan & Afshari, Faraz & Tuncer, Azim Doğuş, 2021. "Energy-exergy and sustainability analysis of a PV-driven quadruple-flow solar drying system," Renewable Energy, Elsevier, vol. 175(C), pages 1151-1166.

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