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Solar dryers in the Asia-Pacific region

Author

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  • Ong, K.S.

Abstract

The traditional method of solar drying in the Asia-Pacific region is by open-air drying where the product to be dried is exposed directly to the sun. The disadvantages of this traditional form of drying are many. Dirt, dust, and wind-blown debris, insect infestation, human and animal interference, will result in contamination of the product. Speed of drying and quality of dried product will be reduced due to over/under drying, intermittent sunshine, interruption and wetting by rain. Mechanical solar drying using natural convection or forced circulation would minimise these disadvantages. The author of this paper visited a number of countries and studied the numerous designs available for solar drying in the region. Three types of solar dryers considered by the author as having the best potential for development in the Asia-Pacific Region are discussed. These are the natural convection cabinet-type solar dryer, the forced convection indirect solar dryer, and the greenhouse-type solar dryer.

Suggested Citation

  • Ong, K.S., 1999. "Solar dryers in the Asia-Pacific region," Renewable Energy, Elsevier, vol. 16(1), pages 779-784.
    • Handle: RePEc:eee:renene:v:16:y:1999:i:1:p:779-784
    DOI: 10.1016/S0960-1481(98)00279-1
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    Citations

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    Cited by:

    1. Fudholi, A. & Sopian, K. & Ruslan, M.H. & Alghoul, M.A. & Sulaiman, M.Y., 2010. "Review of solar dryers for agricultural and marine products," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(1), pages 1-30, January.
    2. VijayaVenkataRaman, S. & Iniyan, S. & Goic, Ranko, 2012. "A review of solar drying technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 2652-2670.
    3. Murthy, M.V. Ramana, 2009. "A review of new technologies, models and experimental investigations of solar driers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(4), pages 835-844, May.
    4. Gilago, Mulatu C. & Chandramohan, V.P., 2022. "Performance evaluation of natural and forced convection indirect type solar dryers during drying ivy gourd: An experimental study," Renewable Energy, Elsevier, vol. 182(C), pages 934-945.
    5. Bhutto, Abdul Waheed & Bazmi, Aqeel Ahmed & Zahedi, Gholamreza, 2012. "Greener energy: Issues and challenges for Pakistan—Solar energy prospective," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 2762-2780.
    6. Abubakar, S. & Umaru, S. & Kaisan, M.U. & Umar, U.A. & Ashok, B. & Nanthagopal, K., 2018. "Development and performance comparison of mixed-mode solar crop dryers with and without thermal storage," Renewable Energy, Elsevier, vol. 128(PA), pages 285-298.
    7. Kareem, M.W. & Habib, Khairul & Sopian, K. & Ruslan, M.H., 2017. "Multi-pass solar air heating collector system for drying of screw-pine leaf (Pandanus tectorius)," Renewable Energy, Elsevier, vol. 112(C), pages 413-424.

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