[解法(해법)] 공정제어 2판 解法(해법)(Process Dynamics, Modeling and Control 2nd Edition, Ogunnaike and Ray) > stssemi2

[解法(해법)] 공정제어 2판 解法(해법)(Process Dynamics, Modeling and Control 2nd Edi…

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작성일 21-10-27 07:54

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1.3
Disturbance variable- QL (heat lost to surroundings); other possible
furnace (Ex. 1.2) all work similarly, generally using a feedback control
ON/OFF SWITCH
a) True

seconds and off for 4 seconds, if the fixed duty cycle is 10 seconds long).
Copyright © 2004 by Dale E. Seborg, Thomas F. Edgar and Duncan A. Mellichamp.
minutes with the power proportioned at 60% (i.e., turned on 100% for 6
Controlled variable- T (house interior temperature)
No, a microwave oven typically uses only a timer to operate the oven for a
of food from the oven, etc. A non-electronic household appliance that

CHAPTER1
sources of disturbances are the loss of gas pressure and the outside door
[解法(해법)] 공정제어 2판 解法(해법)(Process Dynamics, Modeling and Control 2nd Edition, Ogunnaike and Ray)

화학, 공정, 제어, 솔루션, 공학
다. then turned on or off depending on whether the temperature is below or

on-off controller and its set point are built into the mechanical assembly.

(ball) on a lever arm closes or opens a valve as the water level rises and

set (desired) period of time and a power level setting that turns the power
generating and transmitting energy into the surrounding air), and what

mechanism and an electronic on-off controller. For example, the oven uses
1.1
generally several seconds.

sensor; the lever arm acting on the valve stem provides actuation; and the

d) False
dial or electronic set-point/display unit); and the gas or electric current is
e) True

Thus setting the Power Level at 6 (60% of full power) and the Cook Time
outside wind velocity (external heat transfer coefficient), the opening of
above the desired value. Disturbances include the introduction or removal

1.4
The ordinary kitchen oven (either electric or gas), the water heater, and the

other electric lights and appliances of any nature are being used.

a thermal element similar to a thermocouple to sense temperature; the

순서

sensors output is compared to the desired cooking temperature (input via

doors or windows into the house, the number of people inside (each one
falls above the desired maximum level. The float height represents the
Specific disturbances include change in outside temperature, change in
Q T L Q

Download : [솔루션] 공정제어 2판 솔루션(Pr.zip( 75 )

opening.

to 1:30 would result in the oven running for a total of one and one-half

Solution Manual for Process Dynamics and Control, 2nd edition,
레포트 > 공학,기술계열
utilizes built-in feedback control is the water tank in a toilet. Here, a float
b) True
Manipulated variable- Q (heat from the furnace)
설명
1-2
TC
on at its maximum level for a fixed fraction of the so-called duty cycle,
This type of control is sometimes referred to as
1.2
c) True
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