Applied Process Control

6Problems – Estimation of Variables and Model Parameters from Plant Data

P_6.1 6.1.1

A solution is fed at 5 m³ h⁻¹ through a stirred vessel of volume 1 m³, before it enters a long narrow pipeline which has a total volume of 1 m³.

1. Using a 10 s time step, set up a model in MATLAB® which will allow you to simulate the behaviour of this system for a varying concentration C_A0 of a species ‘A’ in the feed to the vessel. Your variations of C_A0 should be random and uncorrelated, drawn on each time step from a uniform top-hat distribution in the range of 0–100 ppm.
2. Using data generated over 2 h, determine and plot the cross-correlation and autocorrelation ...