Question

Assuming a constant drying condition,a pile of meat wet solid was dried on a tray dryer.The thickness of material on the tray is 35.4 mm. Only top surface with an area of 0.45 m2 was exposed to drying. It took approximately 3.9 hours to dry 12.0 kg wet meat from its initial free moisture of 0.55 kg free moisture/kg dry meat to its critical moisture content of 0.22 kg free moisture/ kg dry meat. Evaluate the time to dry a pile of this material from X1 = 0.48 to X2 = 0.32 using the same drying conditions, with drying from top and bottom surfaces.

Answer 1

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