Instrumentation & Proccess Control
"Control System Development with HYSYS"
CHEN 4570
Spring 2005
Control System Development with HYSYS 1
This exercise provides a tutorial on the development of dynamic chemical process simulations using AspenTech’s HYSYS simulation software. The tutorial is based on implementing three conventional PID control loops on a single-stage flash drum unit for a multicomponent, nonideal feed stream. The steps in the development process are:
1) steady-state design and simulation
2) specifying dynamic characteristics of process equipment
3) switching the simulation over to dynamics mode
4) adding feedback controllers to the simulation
5) adding stripchart displays
6) carrying out dynamic tests and fitting transfer functions
7) tuning the controllers
1. Steady-state Design and Simulation
The process unit that is design, simulated and studied in this tutorial is a single-stage flash drum, as
shown in the figure below.
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