REFRIGERATION+AIR COND.TECH.-W/2 ACCESS
8th Edition
ISBN: 9781337370042
Author: TOMCZYK
Publisher: CENGAGE L
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Chapter 32, Problem 28RQ
A one-pipe system may be used when the oil tank is higher or lower than the oil pump. True or false.
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One
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4th Year
24. (i) Derive a mathematical model for the mechanical system represented below, where the input
Automation and Control
is the Force F, and the output is the displacement x.
(ii)Determine the general transfer function of the system given that the input is an
impulsive force of 10N and the following constants
(iii\Determine the output as a F(s)
(iii) What is the output x as a function of time?
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Rnd
0
COM
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Ran# Ra
25 (N/m)
5 kg
30 (N.s/m)
Ans(i) ref notes
2
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s² + 6s+5
25. A control system has a forward path transfer function of
(111)
(iii) x(t) = 0.5(e-t-e-5t)
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and a negative feedback loop
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with a transfer function 4. What will be the (time) response of the system to a unit step input?
Ans: 0.2(1-e-10)
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26. A control system has a forward path transfer function of and a negative feedback loop
S+3
with a transfer function 5. What will be the (time) response of the system to a (a) unit impulsive
input? (b) a…
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2x2 +212 +382
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x² -23.5x + x37
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Automation and Control
4th Year
24. (i) Derive a mathematical model for the mechanical system represented below, where the input
is the Force F, and the output is the displacement x.
(ii)Determine the general transfer function of the system given that the input is an
impulsive force of 10N and the following constants
(iii\Determine the output as a F(s)
(iii) What is the output x as a function of time?
25 (N/m)
F
5 kg
30 (N.s/m)
2
Ans(i) ref notes
(iii)
(iii) x(t) = 0.5(e-t-e-st)
2
and a negative feedback loop
S+2
s² + 6s+5
25. A control system has a forward path transfer function of
with a transfer function 4. What will be the (time) response of the system to a unit step input?
CON
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1
Rnd
Rane R
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Ans: 0.2(1-e-10)
10
s+3
and a negative feedback loop
26. A control system has a forward path transfer function of
with a transfer function 5. What will be the (time) response of the system to a (a) unit impulsive…
Chapter 32 Solutions
REFRIGERATION+AIR COND.TECH.-W/2 ACCESS
Ch. 32 - How many grades of fuel oil are normally...Ch. 32 - What two elements make up fuel oil?Ch. 32 - The most common fuel oil used for residential and...Ch. 32 - As the temperature of an oil sample decreases, A....Ch. 32 - If oil is to be stored at temperatures lower than...Ch. 32 - Prob. 6RQCh. 32 - If it is expected that an oil-fired appliance will...Ch. 32 - How many pounds of oxygen are required to burn 1...Ch. 32 - Explain the concept of excess air when it is used...Ch. 32 - Before fuel oil can be burned, it must be A....
Ch. 32 - What products of combustion are produced with...Ch. 32 - When incomplete combustion occurs, what additional...Ch. 32 - The minimum nozzle pressure for residential and...Ch. 32 - Prob. 14RQCh. 32 - Describe the three functions of the oil burner...Ch. 32 - Describe three common spray patterns for an oil...Ch. 32 - The purpose of the electrodes of an oil burner is...Ch. 32 - Prob. 18RQCh. 32 - Prob. 19RQCh. 32 - List the advantages a solid-state igniter has over...Ch. 32 - Which of the following is the typical output...Ch. 32 - Prob. 22RQCh. 32 - Prob. 23RQCh. 32 - Prob. 24RQCh. 32 - Explain the difference between the hot contacts...Ch. 32 - The purpose of the cad cell in an oil burner...Ch. 32 - Explain why it is important to keep the cad cell...Ch. 32 - A one-pipe system may be used when the oil tank is...Ch. 32 - Prob. 29RQCh. 32 - Prob. 30RQCh. 32 - The oil flame must not hit the combustion chamber...Ch. 32 - Describe the purpose of the heat exchanger.Ch. 32 - When servicing an oil burner, a service technician...Ch. 32 - Describe the function of the flame-retention ring...
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