03: A wet solid is to be dried in a tray dryer under steady state conditions from a free moisture content of X, -0.4 kgH₂O/kg dry solid 1o X₂= 0.02 kgH₂O/kg dry solid. The dry solid weight is 99.8kg dry solid and the top surface area for drying is 4.645m². the drying rate curve can be represented by Figure below. a- Calculate the time for drying using graphical integration in the falling rate period. b- Repeat but use a straight line through the organic for the drying rate in the falling rate period. Drying rate R 1.2 0.8 0.4 Falling rale D Constant rate 0.1 0,2 0.3 0.4 0.5 06 Free monture X (ke II, O/kg dry solid)
03: A wet solid is to be dried in a tray dryer under steady state conditions from a free moisture content of X, -0.4 kgH₂O/kg dry solid 1o X₂= 0.02 kgH₂O/kg dry solid. The dry solid weight is 99.8kg dry solid and the top surface area for drying is 4.645m². the drying rate curve can be represented by Figure below. a- Calculate the time for drying using graphical integration in the falling rate period. b- Repeat but use a straight line through the organic for the drying rate in the falling rate period. Drying rate R 1.2 0.8 0.4 Falling rale D Constant rate 0.1 0,2 0.3 0.4 0.5 06 Free monture X (ke II, O/kg dry solid)
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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Transcribed Image Text:03: A wet solid is to be dried in a tray dryer
under steady state conditions from a free
moisture content of X₁ -0.4 kgH₂O/kg dry
solid to X₂ 0.02 kgH₂O/kg dry solid. The
dry solid weight is 99.8kg dry solid and the
top surface area for drying is 4.645m². the
drying rate curve can be represented by
Figure below.
a- Calculate the time for drying using
graphical integration in the falling rate
period.
b- Repeat but use a straight line through
the organic for the drying rate in the
falling rate period.
h·m²
Drying rate R
20
0.8
0.4
Falling
rate
0.1 0,2
Free moisture
Constant
rate
0.3 0.4 0,5 06
(kg 11, O/kg day solid)
(11
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