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Find the time taken to dry 50% to 40% of moisture (dry basis) if critical moisture content is 30%. If the weight of the wet solid is 5 kg and the product of area and the constant rate is 0.5 kg/min.

Find the time taken to dry 50% to 40% of moisture (dry basis) if critical moisture content is 30%. If the weight of the wet solid is 5 kg and the product of area and the constant rate is 0.5 kg/min. Correct Answer 60 sec

Time for drying = ( wet solid weight * change in moisture )/ Area * constant rate = (5 * 0.1/0.5) min = 1 min = 60 sec.

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