Design, development and performance testing of a new natural convection solar dryer

Dilip R. Pangavhane, R.L. Sawhney and P.N. Sarsavadia

Energy, 2002, vol. 27, issue 6, 579-590

Abstract: Mechanical drying of agricultural products is an energy consuming operation in the post-harvesting technology. Greater emphasis is given to using solar energy sources in this process due to the high prices and shortages of fossil fuels. For these purposes, a new natural convection solar dryer consisting of a solar air heater and a drying chamber was developed. This system can be used for drying various agricultural products like fruits and vegetables. In this study, grapes were successfully dried in the developed solar dryer. The qualitative analysis showed that the traditional drying, i.e. shade drying and open sun drying, dried the grapes in 15 and 7 days respectively, while the solar dryer took only 4 days and produced better quality raisins.

Date: 2002
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Citations: View citations in EconPapers (19)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:27:y:2002:i:6:p:579-590

DOI: 10.1016/S0360-5442(02)00005-1

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