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Solar Tunnel Dryer
Prepared by MicroEnergy International GmbH with the collaboration of Davide Forcella (CERMi-ULB), 2015.
Solar tunnel dryers utilize the energy of the sun and wind to dry agricultural products, preparing them for proper storage, processing and export. The crop is spread in an even layer on tables or drying racks inside the tunnel. The air below the semi-transparent collector is heated by the sun and spreads throughout the tunnel. The increased temperature decreases the relative humidity of the air, thereby allowing the air to more efficiently dry the crop
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