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Experimental studies on hemi cylindrical walk-in type solar tunnel dryer for grape drying

  • Solar Power Plants and Their Application
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Abstract

A walk in type hemi cylindrical solar tunnel has been built with heat protective north wall at College of Dairy and Food Science Technology, Udaipur, India for drying agriculture & horticulture product on large scale. In this paper attempt has been made to evaluate the performance of developed dryer to dry the Thompson seedless grapes (mutant: Sonaka). The study show that chemically untreated grapes took seven days to dry at 16% (wb) moisture content. The temperature gradient inside the tunnel dryer is about 10–28°C during the clear day, which is quite enough to dry agricultural commodities.

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Authors and Affiliations

  1. College of Dairy & Food Science Technology, Maharana Pratap University of Agriculture and Technology, Udaipur (Rajasthan), India

    N. S. Rathore

  2. Department of Renewable Energy Sources, College of Technology and Engineering Maharana Pratap University of Agriculture and Technology, Udaipur (Rajasthan), India

    N. L. Panwar

Authors
  1. N. S. Rathore
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  2. N. L. Panwar
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Rathore, N.S., Panwar, N.L. Experimental studies on hemi cylindrical walk-in type solar tunnel dryer for grape drying. Appl. Sol. Energy 45, 269–273 (2009). https://doi.org/10.3103/S0003701X09040100

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  • DOI: https://doi.org/10.3103/S0003701X09040100

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