Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?

Chemical Engineering Mcqs

Normally, the length to diameter ratio of rotary dryers varies from 4 to 10 and for its economic operation; the number of transfer units (NTU) for such dryers varies from ?

(A)  1.5-2.5

(B)  3.5-5.5

(C)  7.5-10.0

(D)  10-15



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