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Optimisation of Marine Boilers using Model-based Multivariable ...

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Contents<br />

Preface and Acknowledgements i<br />

Abstract iii<br />

Synopsis v<br />

1 Introduction 1<br />

1.1 Background and Motivation . . . . . . . . . . . . . . . . . . . . . . . 1<br />

1.2 The <strong>Marine</strong> Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2<br />

1.3 State <strong>of</strong> the Art and Related Work . . . . . . . . . . . . . . . . . . . . 4<br />

1.4 Vision for the <strong>Marine</strong> Boiler Controller . . . . . . . . . . . . . . . . . 13<br />

1.5 Outline <strong>of</strong> the Thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . 16<br />

2 The <strong>Marine</strong> Boiler Plant 19<br />

2.1 Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 19<br />

2.2 Water-steam Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20<br />

2.3 The Water Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22<br />

2.4 Consumer and Load Characteristics . . . . . . . . . . . . . . . . . . . 24<br />

2.5 Control System Requirements . . . . . . . . . . . . . . . . . . . . . . 25<br />

2.6 Control Challenges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27<br />

2.7 Test Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29<br />

3 Summary <strong>of</strong> Contributions 31<br />

3.1 Supply System <strong>Model</strong>ling and Control . . . . . . . . . . . . . . . . . . 31<br />

3.2 <strong>Marine</strong> Boiler <strong>Model</strong>ling and Control . . . . . . . . . . . . . . . . . . 39<br />

3.3 Hybrid Systems Control . . . . . . . . . . . . . . . . . . . . . . . . . 48<br />

3.4 Solved Control Challenges . . . . . . . . . . . . . . . . . . . . . . . . 54<br />

4 Conclusion 57<br />

4.1 Perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59<br />

vii

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