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Applied Process Control by Michael Mulholland

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3Problem Solutions – Modelling

S_3.1 3.3

Equations:

Using a nearby datum temperature, the linearised ODEs describing this system are

equation
equation

MATLAB® Program code for Solution 3.1

% Integration of lumped system Problem 3.1
clear all;
close all;
 
% Initialisation
F0=10/3600; % m3/h -> m3/s
T0=25;      % C
CA0=20;     % gmol /l (= kgmol / m3)
f0=20/3600; % m3/h -> m3/s
t0=25;      % 0C
V1=10;      % m3
V2=5;       % m3;
DH=-4000.0; % kJ / kgmolA converted
k0=10/3600; % 1/h -> 1/s
E=500;      % kj / kgmol
R=8.314;    % kj /K /kgmol
A=3;        % m2
U=40.0;     % kW /m2/0C
ro=1000; % kg ...

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