Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Chapter 18, Problem 31P
For the bridge network in Fig. 18.89:
a. Is the bridge balanced?
b. Using mesh analysis, determine the current through the capacitive reactance.
c. Using nodal analysis, determine the voltage across the capacitive reactance.
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c)
A RC circuit is given in Figure Q1.1. Vi(t) and Vo(t) are the input and output
voltages.
(i) Derive the transfer function of the circuit.
(ii)
With a unit step change of Vi(t) applied to the circuit, derive the time
response of the circuit.
C₁ C₂
Vi(t)
Vo(1)
R₁ C₂
R-25 k C=C2=50 µF
Figure Q1.1. RC circuit.
Answer 2 questions for 100 marks
Question 1: Process Design
[25 marks]
An incomplete process design of a flash drum distillation unit is presented in Figure 1. The
key variables to be controlled are flow rate, temperature, composition, pressure and liquid
level in the drum. Disturbances are observed in the feed temperature and composition.
Heat exchangers
Drum
Vapor
Liquid
Pump
Figure 1: Incomplete process design of a distillation unit
Answer the following questions briefly and in a qualitative fashion:
a) Determine which sensors and final elements are required so that the important
variables can be controlled. Sketch them in the figure using correct instrumentation
tags. Describe briefly what instruments you will use and where they should be
located. Reflect on the potential presence of a flow controller upstream of your
process design (not shown in the diagram). How would this affect the level controller in
the drum?
b)
[10 marks]
Describe briefly how you qualitatively determine the…
Answer 2 questions for 100 marks
Question 1: Process Design
[25 marks]
An incomplete process design of a flash drum distillation unit is presented in Figure 1. The
key variables to be controlled are flow rate, temperature, composition, pressure and liquid
level in the drum. Disturbances are observed in the feed temperature and composition.
Heat exchangers
Drum
Vapor
Liquid
Pump
Figure 1: Incomplete process design of a distillation unit
Answer the following questions briefly and in a qualitative fashion:
a) Determine which sensors and final elements are required so that the important
variables can be controlled. Sketch them in the figure using correct instrumentation
tags. Describe briefly what instruments you will use and where they should be
located. Reflect on the potential presence of a flow controller upstream of your
process design (not shown in the diagram). How would this affect the level controller in
the drum?
b)
[10 marks]
Describe briefly how you qualitatively determine the…
Chapter 18 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 18 - Discuss, in your own words, the difference between...Ch. 18 - Convert the voltage source in Fig. 18.62 to a...Ch. 18 - Convert the current source in Fig. 18.63 to a...Ch. 18 - Convert the votage source in Fig. 18.64(a) to a...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equtions for the network of Fig....
Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Using mesh analysis, determine the current IL (in...Ch. 18 - Using mesh analysis, determine the current IL (in...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal votas for the network of Fig....Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Write the nodal equations for the network in Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - For the network of Fig. 18.87, determine the...Ch. 18 - For the bridge network in Fig. 18.88: Fig. 18.88...Ch. 18 - For the bridge network in Fig. 18.89: a. Is the...Ch. 18 - The Hay bridge in Fig. 18.90 is balanced. Using...Ch. 18 - Determine whether the Maxwell bridge in Fig. 18.91...Ch. 18 - Derive the balance equations (18.16) and (18.17)...Ch. 18 - Determine the balance equations for the inductance...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Determine the mesh currents for the network of...Ch. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Prob. 43PCh. 18 - Prob. 44PCh. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Prob. 47PCh. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...
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