9 a)

b)

0)

00000CH303121901

With a neat sketch explain the construction and working of any one type of
crystallizer used in industry.

Describe the mechanism of different moisture movements in drying operation.

A wet solid is dried from 40 % moisture to 8% moisture in 4 hrs. How long will
it take to dry the material to 5 % moisture under the same drying conditions.
Equilibrium moisture content is 4 % and critical moisture content of the material

was 15 % (moisture content in wet basis).

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