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Performance of a solar drier with and without heat storage material for copra drying


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  • M. Mohanraj
  • P. Chandrasekar
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    An indirect forced convection solar drier integrated with heat storage material was developed to test its performance for copra drying. The drier consists of a solar flat plate air heater integrated with a sensible heat storage unit, a drying chamber and a centrifugal blower. The experiments were carried out with and without the integration of heat storage materials. Sand mixed with aluminium scrap was used as a heat storage material in solar air heater. The moisture content (wet basis) of copra was reduced from about 52% to about 8% in 80 and 104 hour, respectively, for solar drier integrated with and without heat storage materials. The Specific Moisture Extraction Rate was estimated to be about 0.81 and 0.94 kg kW hour−1 for the solar air heater with and without heat storage materials, respectively. The average solar drier thermal efficiency was estimated to be about 23% in both the drying modes.

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    Bibliographic Info

    Article provided by Inderscience Enterprises Ltd in its journal Int. J. of Global Energy Issues.

    Volume (Year): 31 (2009)
    Issue (Month): 2 ()
    Pages: 112-121

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    Handle: RePEc:ids:ijgeni:v:31:y:2009:i:2:p:112-121

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    Keywords: copra drying; heat storage materials; solar dryers; specific moisture extraction rate; SMER; indirect forced convection; solar energy; solar power; sand; aluminium scrap; solar air heaters.;


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    Cited by:
    1. Park, S.R. & Pandey, A.K. & Tyagi, V.V. & Tyagi, S.K., 2014. "Energy and exergy analysis of typical renewable energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 105-123.


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