A heat exchanger uses medium pressure steam at 10 bar and 350 C to heat cyclohexane vapor from 100 C up to 275 C as shown in the figure below. The steam is available at a flowrate of 32 kg/h and it condenses completely in the heat exchanger and exits as saturated liquid condensate at 10 bar. a) How much heat (in kW) can be provided by the steam? b) How much cyclohexane can be processed in kg/h? Vapor Cyclohexane T = 100 C P = 1 atm Steam T = 350 C = 10 bar Condensate P Vapor Cyclohexane T = 275 C P = 1 atm P = 10 bar Use given tabulated data for answer
A heat exchanger uses medium pressure steam at 10 bar and 350 C to heat cyclohexane vapor from 100 C up to 275 C as shown in the figure below. The steam is available at a flowrate of 32 kg/h and it condenses completely in the heat exchanger and exits as saturated liquid condensate at 10 bar. a) How much heat (in kW) can be provided by the steam? b) How much cyclohexane can be processed in kg/h? Vapor Cyclohexane T = 100 C P = 1 atm Steam T = 350 C = 10 bar Condensate P Vapor Cyclohexane T = 275 C P = 1 atm P = 10 bar Use given tabulated data for answer
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 heat exchanger uses medium pressure steam at 10 bar and 350 C to heat cyclohexane vapor from 100 C up to 275 C as shown in the figure below. The steam is available at a flowrate of 32 kg/h and it condenses completely in the heat exchanger and exits as saturated liquid condensate at 10 bar. a) How much heat (in kW) can be provided by the steam? b) How much cyclohexane can be processed in kg/h? Vapor Cyclohexane T = 100 C P = 1 atm Steam T = 350 C = 10 bar Condensate P Vapor Cyclohexane T = 275 C P = 1 atm P = 10 bar
Use given tabulated data for answer .
![TABLE B.2 Heat Capacities
Example: (Cp)eton) = 0.07196+ (20.10×10)7- (12.78 × 10-)2 + (34.76 x 10-12)7³, where I' is in °C.
Note: The formulas for gases are strictly applicable at pressures low enough for the ideal-gas equation of state to apply.
Compound
Acetone
Acetylene
Air
Cumene
(Isopropyl benzene)
Cyclohexane
Cyclopentane
Ethane
Sulfur dioxide
Sulfur trioxide
Toluene
Water
Formula
CH₂COCH;
C₂H₂
Form 1: C,[kJ/(mol-"C)] or [kJ/(mol-K)] = a + b + cT² +dT³3
Form 2: C,[kJ/(mol "C)] or [kJ/(mol-K)] = a + b + cT²
C₂H12
C6H₁2
CsH₂0
C₂H6
SO₂
SO,
C₂Hs
H₂O
Mol.
Wt.
58.08
26.04
29.0
Temp.
State Form Unit a x 10³
120.19 8
84.16 8
70.13
30.07 8
18.016
GO GO GO
8
64.07 g
80.07
92.13
0500000
I
8
8
8
1
1
1
1
1
1
1
1
°C
°C
°C
°C
123.0
71.96
42.43
28.94
28.09
bx 105
18.6
20.10
6.053
0.4147
0.1965
139.2
53.76
94.140 49.62
73.39
39.28
49.37 13.92
38.91
°C 48.50
148.8
32.4
°C 94.18 38.00
°C 75.4
°C 33.46 0.6880
3.904
9.188
ex 108
-12.78
-5.033
0.3191
0.4799
-39.79
-31.90
-25.54
-5.816
-3.104
-8.540
-27.86
0.7604
d x 10¹2
120.5
34.76
0-1200
18.20
0-1200
-1.965
0-1500
-1.965 273-1800
80.63
68.66
7.280
8.606
32.40
Range
(Units
of T)
80.33
-3.593
-30-60
0-1200
0-1200
0-1200
0-1200
0-1500
0-1000
0-110
0-1200
0-100
0-1500](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F135d4a40-2572-4c62-8b31-300ca8461b64%2F7fb5d84c-a84b-40a3-b183-91f18f21f0fb%2Fqdjjp42r_processed.png&w=3840&q=75)
Transcribed Image Text:TABLE B.2 Heat Capacities
Example: (Cp)eton) = 0.07196+ (20.10×10)7- (12.78 × 10-)2 + (34.76 x 10-12)7³, where I' is in °C.
Note: The formulas for gases are strictly applicable at pressures low enough for the ideal-gas equation of state to apply.
Compound
Acetone
Acetylene
Air
Cumene
(Isopropyl benzene)
Cyclohexane
Cyclopentane
Ethane
Sulfur dioxide
Sulfur trioxide
Toluene
Water
Formula
CH₂COCH;
C₂H₂
Form 1: C,[kJ/(mol-"C)] or [kJ/(mol-K)] = a + b + cT² +dT³3
Form 2: C,[kJ/(mol "C)] or [kJ/(mol-K)] = a + b + cT²
C₂H12
C6H₁2
CsH₂0
C₂H6
SO₂
SO,
C₂Hs
H₂O
Mol.
Wt.
58.08
26.04
29.0
Temp.
State Form Unit a x 10³
120.19 8
84.16 8
70.13
30.07 8
18.016
GO GO GO
8
64.07 g
80.07
92.13
0500000
I
8
8
8
1
1
1
1
1
1
1
1
°C
°C
°C
°C
123.0
71.96
42.43
28.94
28.09
bx 105
18.6
20.10
6.053
0.4147
0.1965
139.2
53.76
94.140 49.62
73.39
39.28
49.37 13.92
38.91
°C 48.50
148.8
32.4
°C 94.18 38.00
°C 75.4
°C 33.46 0.6880
3.904
9.188
ex 108
-12.78
-5.033
0.3191
0.4799
-39.79
-31.90
-25.54
-5.816
-3.104
-8.540
-27.86
0.7604
d x 10¹2
120.5
34.76
0-1200
18.20
0-1200
-1.965
0-1500
-1.965 273-1800
80.63
68.66
7.280
8.606
32.40
Range
(Units
of T)
80.33
-3.593
-30-60
0-1200
0-1200
0-1200
0-1200
0-1500
0-1000
0-110
0-1200
0-100
0-1500
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