7,28. Saturated steam at 29.8 psig is to be used to heat a stream of ethane at constant pressure. The ethane enters the heat exchanger at 60°F and 20 psia at a rate of 27 890 ft³/min and is heated to 200°F. The steam condenses and leaves the exchanger as a liquid at 80°F. The specific enthalpy of ethane at 20 psia is 450 Btu/lb at 60°F and 513 Btu/lbm at 200°F. (a) How much heat (Btu/min) must be provided to heat the ethane from 60°F to 200°F? (b) At what rate in ft3/min must steam be supplied to the heat exchanger?
7,28. Saturated steam at 29.8 psig is to be used to heat a stream of ethane at constant pressure. The ethane enters the heat exchanger at 60°F and 20 psia at a rate of 27 890 ft³/min and is heated to 200°F. The steam condenses and leaves the exchanger as a liquid at 80°F. The specific enthalpy of ethane at 20 psia is 450 Btu/lb at 60°F and 513 Btu/lbm at 200°F. (a) How much heat (Btu/min) must be provided to heat the ethane from 60°F to 200°F? (b) At what rate in ft3/min must steam be supplied to the heat exchanger?
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
![728. Saturated steam at 29.8 psig is to be used to heat a stream of ethane at constant pressure.
The ethane enters the heat exchanger at 60°F and 20 psia at a rate of 27 890 ft³/min
and is heated to 200°F. The steam condenses and leaves the exchanger as a liquid at
80°F. The specific enthalpy of ethane at 20 psia is 450 Btu/lb at 60°F and 513 Btu/lbm
at 200°F.
(a)
How much heat (Btu/min) must be provided to heat the ethane from 60°F to
200°F?
(b) At what rate in ft3/min must steam be supplied to the heat exchanger?
Ans: a) Q = 188,928 Btu/min. b) 1605 ft³/min](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F44b34642-9609-458e-8b5b-1309cf6494c2%2Fc1d697b7-404a-4424-9c6b-d0088b76e967%2Fkdzd2fj.png&w=3840&q=75)
Transcribed Image Text:728. Saturated steam at 29.8 psig is to be used to heat a stream of ethane at constant pressure.
The ethane enters the heat exchanger at 60°F and 20 psia at a rate of 27 890 ft³/min
and is heated to 200°F. The steam condenses and leaves the exchanger as a liquid at
80°F. The specific enthalpy of ethane at 20 psia is 450 Btu/lb at 60°F and 513 Btu/lbm
at 200°F.
(a)
How much heat (Btu/min) must be provided to heat the ethane from 60°F to
200°F?
(b) At what rate in ft3/min must steam be supplied to the heat exchanger?
Ans: a) Q = 188,928 Btu/min. b) 1605 ft³/min
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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 with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Introduction to Chemical Engineering Thermodynami…](https://www.bartleby.com/isbn_cover_images/9781259696527/9781259696527_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9780133887518/9780133887518_smallCoverImage.gif)
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
![Introduction to Chemical Engineering Thermodynami…](https://www.bartleby.com/isbn_cover_images/9781259696527/9781259696527_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9780133887518/9780133887518_smallCoverImage.gif)
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
![Process Dynamics and Control, 4e](https://www.bartleby.com/isbn_cover_images/9781119285915/9781119285915_smallCoverImage.gif)
![Industrial Plastics: Theory and Applications](https://www.bartleby.com/isbn_cover_images/9781285061238/9781285061238_smallCoverImage.gif)
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
![Unit Operations of Chemical Engineering](https://www.bartleby.com/isbn_cover_images/9780072848236/9780072848236_smallCoverImage.gif)
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The