100 mol/hr pentane flows through an adiabatic heat exchanger (one type of heat exchanger is shown below) where it is heated isobarically (at 2.5 bar) from 50°C to 250°C. The pentane is heated by contacting pipes filled with superheated steam (350°C, 5 bar) that is cooled to saturated liquid (still at 5 bar). For simplicity, you may use only the first two terms of the heat capacity (a+bT) instead of the entire formula. a. Draw and label a process flow diagram, including heat flow Q. An adiabatic heat exchanger does not exchange heat with the surroundings (it is well insulated). Heat is only transferred between the steam and the pentane, even though these two species do not directly contact each other. Be sure to identify was phase pentane is as it enters and as it leaves. b. Find the molar flow rate of steam by performing an energy balance on the whole system (pentane and water). c. Use an individual “system” energy balance (either on the water or on the pentane) to calculate the amount of heat transferred between the pentane and water.
100 mol/hr pentane flows through an adiabatic heat exchanger (one type of heat exchanger is shown below) where it is heated isobarically (at 2.5 bar) from 50°C to 250°C. The pentane is heated by contacting pipes filled with superheated steam (350°C, 5 bar) that is cooled to saturated liquid (still at 5 bar). For simplicity, you may use only the first two terms of the heat capacity (a+bT) instead of the entire formula. a. Draw and label a process flow diagram, including heat flow Q. An adiabatic heat exchanger does not exchange heat with the surroundings (it is well insulated). Heat is only transferred between the steam and the pentane, even though these two species do not directly contact each other. Be sure to identify was phase pentane is as it enters and as it leaves. b. Find the molar flow rate of steam by performing an energy balance on the whole system (pentane and water). c. Use an individual “system” energy balance (either on the water or on the pentane) to calculate the amount of heat transferred between the pentane and water.
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
100 mol/hr pentane flows through an adiabatic heat exchanger (one type of heat exchanger is shown below) where it is heated isobarically (at 2.5 bar) from 50°C to 250°C. The pentane is heated by contacting pipes filled with superheated steam (350°C, 5 bar) that is cooled to saturated liquid (still at 5 bar). For simplicity, you may use only the first two terms of the heat capacity (a+bT) instead of the entire formula.
a. Draw and label a process flow diagram, including heat flow Q. An adiabatic heat exchanger does not exchange heat with the surroundings (it is well insulated). Heat is only transferred between the steam and the pentane, even though these two species do not directly contact each other. Be sure to identify was phase pentane is as it enters and as it leaves.
b. Find the molar flow rate of steam by performing an energy balance on the whole system (pentane and water).
c. Use an individual “system” energy balance (either on the water or on the pentane) to calculate the amount of heat transferred between the pentane and water.
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 6 steps with 6 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