Equilibrium-Moisture Content % relative 10 20 30 40 50 60 70 90 humidity Moisture content, 3.0 3.2 4.1 4.8 5.4 6.1 7.2 10.7 % (dry basis) Drying Test Drying Test Moisture content, Moisture content, Time, min % (dry basis) Time, min % (dry basis) 116 362 31.4 36 106 415 28.6 125 81 465 24.8 194 61.8 506 22.8 211 57.4 601 15.4 242 49.6 635 13.5 277 12.8 785 11.4 313 37.1 822 10.2
Equilibrium-Moisture Content % relative 10 20 30 40 50 60 70 90 humidity Moisture content, 3.0 3.2 4.1 4.8 5.4 6.1 7.2 10.7 % (dry basis) Drying Test Drying Test Moisture content, Moisture content, Time, min % (dry basis) Time, min % (dry basis) 116 362 31.4 36 106 415 28.6 125 81 465 24.8 194 61.8 506 22.8 211 57.4 601 15.4 242 49.6 635 13.5 277 12.8 785 11.4 313 37.1 822 10.2
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
Related questions
Question
A tunnel dryer is to be designed to dry, by crossflow with air, a wet solid that will be placed in trays measuring 1.5 m longx1.2 m widex25 cm deep. Drying will be from both sides. The initial total moisture content is 116% (dry basis) and the desired final average moisture content is 10% (dry basis). Air is at 90oF and 1 atm with a relative humidity of 15%. The laboratory data below were obtained under the same conditions: Determine the time needed to dry the solid from 110% to 10% moisture content (dry basis) if the air conditions are changed to 125oF and 20% relative humidity. Assume the critical moisture content will not change and that the drying rate is proportional to the difference between dry- and wet-bulb air temperatures.
Transcribed Image Text:Equilibrium-Moisture Content
% relative
10
20
30
40
50
60
70
90
humidity
Moisture content,
3.0 3.2 4.1
4.8
5.4
6.1
7.2 10.7
% (dry basis)
Drying Test
Drying Test
Moisture content,
Moisture content,
Time, min
% (dry basis)
Time, min
% (dry basis)
116
362
31.4
36
106
415
28.6
125
81
465
24.8
194
61.8
506
22.8
211
57.4
601
15.4
242
49.6
635
13.5
277
12.8
785
11.4
313
37.1
822
10.2
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 7 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The