Process Dynamics And Control, 4e
16th Edition
ISBN: 9781119385561
Author: Seborg, Dale E.
Publisher: WILEY
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Chapter 1, Problem 1.9E
Interpretation Introduction
Interpretation:
Each of the given flow control loops are to be identified for feedback or feedforward control system along with the justification.
Concept introduction:
A control system is a system that regulates or monitors the behavior or working of other devices/systems using control loops. It can be used to control a single device or large industrial processes. There are two types of control system which can be used to control the processes. These are the feedback control system and the feedforward control system.
Feedback control systems consider the output of the system and then compares it with the desired value to adjust the measured value to provide accurate results whereas in the feedforward control system, disturbances are taken into account beforehand and they are rectified to control it from deviating from the desired set point.
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Homework 8
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Question 3 of 5
Entering Steam
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Check table lookups for correct values.
Check significant figures.
Check unit conversions.
Calculate the required flow rate of the entering steam in m³/min.
0.00132
m³/min
eTextbook and Media
Hint
0/1
Assistance Used
Determine the specific enthalpy change of each stream first. Then use the known flow rate of the methanol to calculate the
steam flow rate.
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Heat Transferred
× Check units and significant figures.
Calculate the rate of heat transfer from the water to the methanol (kW).
i 44.5
kW
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Don't forget to convert minutes to seconds.
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