Functionality Testing of Water Pressure and Flow Calculation for Dynamic Power Plant Modelling

Timo Yli-Fossi

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


    Water pressure and flow rate calculation in dynamic boiler models is challenging because of stiff system dynamics meaning that time constants of model states vary by several orders of magnitude. Furthermore, strong interconnections between pressures and flow variables may cause instability problems in simulation runs. This study presents a method to implement and test dynamic thermal power plant water-steam system models. A dynamic water-steam system model is presented. The model is applied for testing of the functionality of the presented computation model. Computational performance was tested using different numerical solvers. Also sensitivity to changes in initial values of system states and model parameters was tested. The results indicate that a workable way to make flexible models was found.
    Original languageEnglish
    Title of host publication2016 9th EUROSIM Congress on Modelling and Simulation
    PublisherIEEE Computer Society, Conference Publishing Services, CPS
    Number of pages6
    ISBN (Electronic)978-1-5090-4119-0
    Publication statusPublished - 2016
    Publication typeA4 Article in conference proceedings
    EventEUROSIM Congress on Modelling and Simulation -
    Duration: 1 Jan 2000 → …


    ConferenceEUROSIM Congress on Modelling and Simulation
    Period1/01/00 → …


    • modelling
    • simulation
    • power plant

    Publication forum classification

    • Publication forum level 1


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