1. Specify the proper fail-safe action for the valves in the following services. Specify either fail- I open or fail-close. (a) A flammable solvent is heated by steam in a heat exchanger. The valve manipulates the flow of steam to the exchanger. (b) A valve manipulates the flow ratè of reactant to a reactor vessel. The reaction is endothermic. (c) A valve manipulates the flow of natural gas (combustible) to a furnace. Another valve manipulates the flow of combustion air to the same furnace.
1. Specify the proper fail-safe action for the valves in the following services. Specify either fail- I open or fail-close. (a) A flammable solvent is heated by steam in a heat exchanger. The valve manipulates the flow of steam to the exchanger. (b) A valve manipulates the flow ratè of reactant to a reactor vessel. The reaction is endothermic. (c) A valve manipulates the flow of natural gas (combustible) to a furnace. Another valve manipulates the flow of combustion air to the same furnace.
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%
Transcribed Image Text:TUTORIAL 3_ Control Valve
1. Specify the proper fail-safe action for the valves in the following services. Specify either fail-
I open or fail-close.
(a) A flammable solvent is heated by steam in a heat exchanger. The valve manipulates the
flow of steam to the exchanger.
(b) A valve manipulates the flow ratè of reactant to a reactor vessel. The reaction is
endothermic.
(c) A valve manipulates the flow of natural gas (combustible) to a furnace.
Another valve manipulates the flow of combustion air to the same furnace.
2. Determine the valve position (vp) for the air-to-open valve and air-to-close valve if the signal
of the controller output is 70%.
3. Determine the flow through a linear characteristic valve when the valve position is 60%. The
maximum flow of liquid through the valve is 120 gpm.
4. Valve action and characteristic identification.
a. Identify the characteristics of the following valve.
b. What is its action type?
C What can you comment about the valve?
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
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