Control Scheme

To use this tutorial, you must have successfully completed tutorial

1 of this book.

In this tutorial, you will use Aspen Dynamics to:

• Modify the control scheme associated with the column in the

MCHDYN simulation by adding a composition controller to

maintain the purity of the distillate stream (stream 3).

The controller will measure the MCH composition in the

distillate stream and manipulate the phenol solvent stream

(stream 2).

• Modify the controller tuning parameters (gain and integral

time) for better control performance.

Allow about 25 minutes for this tutorial.

2-2 • Tutorial 2 - Modifying the Control Scheme Getting Started Guide

About Aspen Dynamics Control

Features

In Aspen Dynamics you can easily:

• Add, change and remove control elements

• Select measured and manipulated variables from selection lists

• Configure cascade control loops

• Import control structures from other Aspen Dynamics

generated input files

When an Aspen Dynamics simulation is created, level, pressure

and temperature controllers are automatically included where

appropriate. For flow-driven dynamic simulations, these controllers

are configured as shown in this table:

For this type

Of control

This type of controller

Is used

To directly

Дата добавления: 2015-08-20