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A wet cake of solids has a thickness of 0.8 cm is dried by blowing air with a moisture content of 5 wt% across the top surface. The moisture content of the wet cake is measured as 50 wt% and the aim is to reduce the water content to 12 wt%. The diffusion coefficient of water in the cake has been estimated as 7x10 cm? s*. You have been asked about how much time the process would require. Check to see if your long drying assumption is correct.

A wet cake of solids has a thickness of 0.8 cm is dried by blowing air with a moisture content of 5 wt% across the top surface. The moisture content of the wet cake is measured as 50 wt% and the aim is to reduce the water content to 12 wt%. The diffusion coefficient of water in the cake has been estimated as 7x10 cm? s*. You have been asked about how much time the process would require. Check to see if your long drying assumption is correct.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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(3) A wet cake of solids has a thickness of 0.8 cm is dried by blowing air with a moisture content of 5 wt% across the top surface. The moisture content of the wet cake is measured as 50 wt% and the aim is to reduce the water content to 12 wt%. The diffusion coefficient of water in the cake has been estimated as 7x10° cm? s. You have been asked about how much time the process would require. Check to see if your long drying assumption is correct.
Transcribed Image Text:(3) A wet cake of solids has a thickness of 0.8 cm is dried by blowing air with a moisture content of 5 wt% across the top surface. The moisture content of the wet cake is measured as 50 wt% and the aim is to reduce the water content to 12 wt%. The diffusion coefficient of water in the cake has been estimated as 7x10° cm? s. You have been asked about how much time the process would require. Check to see if your long drying assumption is correct.
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