Conference article

Mathematical Model of Soot Blowing Influences in Dynamic Power Plant Modelling

Conrad Gierow
Chair of Technical Thermodynamics, University of Rostock, Germany

Moritz Hübel
Chair of Technical Thermodynamics, University of Rostock, Germany

Jürgen Nocke
Chair of Technical Thermodynamics, University of Rostock, Germany

Egon Haßel
Chair of Technical Thermodynamics, University of Rostock, Germany

Download articlehttp://dx.doi.org/10.3384/ecp15118707

Published in: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Linköping Electronic Conference Proceedings 118:76, s. 707-714

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Published: 2015-09-18

ISBN: 978-91-7685-955-1

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Due to the increasing integration of renewable energy sources in the existing power grid the conventional power plants have to set their focus more on flexibility and grid stabilization than supplying the base load. Since this task was not foreseeable when designing the currently existing power plants, they will have to suffer completely different load scenarios than expected. Dynamic modelling of complete steam cycles is a promising way to study the power plant operation of various future scenarios. To adapt the model to real power plant behaviour, especially with a focus on control events, the implementation of effects due to steam blown into the gasside part of the boiler in order to detach soot from the heating surfaces (soot blowing) seem to bring great efforts concerning model validity. Furthermore special control optimizations can be done, for example on spray injection at soot blowing events. In this study temperature measurement data is used in combination with a highly detailed boiler model of a 550MW hard coal fired power plant to build a mathematical model of soot blowing influence on the different heat exchangers.

Keywords

Dynamic Modelling; Power Plant; Soot Blowing; Mathematical Modelling; ClaRa; Validation

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