Multi-pass tray dryer operation heated by air

Multi-pass tray dryer operation heated by air 

For the systems where the heat is conducted through the shelves to the solids, the following analysis could be used for design and operation of a dryer. For heat conduction drying Fourier s law of heat conduction is applicable. 

The heat required to vaporize the water is equal to heat conducted resulting in the following equation. 

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