A simple air purifier is designed to remove tiny particles in the air. In order not to scarify the air flow, a pressure drop of 0.25 atm is permissible. Determine the air velocity if the air purifier (1.5 m height, 0.2 m diameter) is fully packed with activated carbons (5 mm side, total mass of 1200g, density of 1 g/cm3 ). Given that the R=0.082 atm.m3 /kmol.K, and the viscosity of the air is 2.1 x10-5 Pa.s.
A simple air purifier is designed to remove tiny particles in the air. In order not to scarify the air flow, a pressure drop of 0.25 atm is permissible. Determine the air velocity if the air purifier (1.5 m height, 0.2 m diameter) is fully packed with activated carbons (5 mm side, total mass of 1200g, density of 1 g/cm3 ). Given that the R=0.082 atm.m3 /kmol.K, and the viscosity of the air is 2.1 x10-5 Pa.s.
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 simple air purifier is designed to remove tiny particles in the air. In order not to scarify the
air flow, a pressure drop of 0.25 atm is permissible. Determine the air velocity if the air purifier
(1.5 m height, 0.2 m diameter) is fully packed with activated carbons (5 mm side, total mass of
1200g, density of 1 g/cm3
). Given that the R=0.082 atm.m3
/kmol.K, and the viscosity of the air
is 2.1 x10-5 Pa.s.
Transcribed Image Text:Vm
Sp
d"v²-np
4n
Reg =
8n-1K
1+ 3n.
89²L
d5 = 4f -
Reg = 390 d-2.05
Heg = 5410.8 d²
-(4)
E = 1-
6
aso
dp
as = aso(1 – €)
d"v²-"p
4n
Rec =
8n-1K (1+ 3n)
6464n
(Rec)critical
(2+n)/(1+n)
(1 + 3n)² (G)
61
d,
aso
PV = nRT
Vm
Sp
6r
dp
aso
(1 - e)²n
= 150
(1– E)P „2
(-ΔΡ)
v+ 1.75
e*d,?
L
A²(-AP)
Ap
dt
nG+ AR,)
Vrep
Vr(1– e)Pp
1- MS
M = 1+
C =
αρS
Transcribed Image Text:Heg=0 10104105 106 107 108 10°
01
Realomcal
0.01
0.0014
10
102
103
104
105
106
Rea
Figure 1: Friction factor for Herschel-Bulkley fluids.
1.0
0.20
0.9
0.50
Laminar Flow
V 0.8
Vmax
.0.75
1.00
1.50
2.00
n=0.20
0.7
Turbulent Flow
0.6
n-0.50
n=0.75
n1.00
0.5
n-1.50
A-2.00
0.4
0.3
10
102
103
104
105
106
Rea
Figure 2: Variation (V/Vmax) as a function of the generalized Reynolds number for power
law fluids.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
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