Process System Analysis & Control

1. PROCESS SYSTEM ANALYSIS AND CONTROL
Submitted by-
Rishabh Jain (K11619)
B.Tech Mechanical
6th Sem/ 3rd Yr

2. CONTENTS
• CONTROL SYSTEMS.
• DEFINITIONS .
• EAMPLE OFSTIREED TANK HEATER.
• CONCLUSION.
• REFERENCES.

3. CONTROL SYSTEMS
Control systems are used to maintain process conditions at
their desired values by manipulating certain process variables
to adjust the variables of interest. A common example of a
control system from everyday life is the cruise control on an
automobile

4. Block diagram— Diagram that indicates the flow of information around the
control system and the function of each part of the system.
Closed loop—In closed loop, the measured value of the controlled variable is
fed back to the controller.
Controlled variable—The process variable that we want to maintain at a
particular value.
Controller—A device that outputs a signal to the process based on the
magnitude of the error signal. A proportional controller outputs a signal
proportional to the error.
Disturbance rejection—One goal of a control system, which is to enable the
system to “reject” the effect of disturbance changes and maintain the
controlled variable at the set point.
Disturbances—Any process variables that can cause the controlled variable to
change. In general, disturbances are variables that we have no control over.
Error—The difference between the values of the set point and the measured
variable.
DEFINITIONS

5. STIRRED TANK HEATER

9. Simulink block diagram

10. Simulink model of stirred tank control system.
Response of stirred tank heater control system for proportional
control only to a step change in the set point of 5C (Kc 20).

11. It has been shown that a control system can be translated to
a block diagram that includes the transfer functions of the
various components. It should be emphasized that a block
diagram is simply a systematic way of writing the
simultaneous differential and algebraic equations that
describe the dynamic behavior of the components.
CONCLUSION

12. • ftp://ftp.ifes.edu.br/cursos/EngenhariaEletrica/LuisEduardo/Modelagem/McGraw%20Hill%20-
%20Process%20Systems%20Analysis%20And%20Control.pdf
• https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ah
UKEwiHqebVn9PLAhXRcY4KHZmuD4gQFgghMAE&url=http%3A%2F%2Fwww.slideshare.net%2Faccel
erate786%2Fprocess-systems-analysis-and-control-third-
edition&usg=AFQjCNEl2RP44DmnoVuo3WSDDPZld66iAg&sig2=xS9WOUy7fdR3SFjVINqTeQ&bvm=bv.
117218890,d.c2E
• https://books.google.co.in/books?id=ICkqRMX_c1AC&pg=PA468&lpg=PA468&dq=process+system+a
nalysis+and+control+industrial+application&source=bl&ots=cwYiGEwlYp&sig=2H2rvL-
stMDw68D2GXJ2Zm4Bm_I&hl=en&sa=X&ved=0ahUKEwj27_v1h8fLAhVIC44KHcfYCmsQ6AEIQzAH#v
=onepage&q=process%20system%20analysis%20and%20control%20industrial%20application&f=fals
e
REFERENCES

13. THANK YOU