Drum-boiler dynamics

Authors:
K. J. íStröM;R. D. Bell
Affiliations:
Department of Automatic Control, Lund Institute of Technology, Box 118, S-221 00 Lund, Sweden;Department of Computing, School of Mathematics, Physics, Computing and Electronics, Macquarie University, New South Wales 2109, Australia
Venue:
Automatica (Journal of IFAC)
Year:
2000

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Abstract

A nonlinear dynamic model for natural circulation drum-boilers is presented. The model describes the complicated dynamics of the drum, downcomer, and riser components. It is derived from first principles, and is characterized by a few physical parameters. A strong effort has been made to strike a balance between fidelity and simplicity. Results from validation of the model against unique plant data are presented. The model describes the behavior of the system over a wide operating range.