Improved Evaluation of Recovery Boiler Water Circulation Design with a Help of the State-of-the-art CFD-based Heat Flux Data

Antti Sirainen, Jukka Röppänen, Viljami Maakala, Jari Lappalainen, Esa Vakkilainen

    Research output: Contribution to conferenceConference articleScientificpeer-review

    Abstract

    Modelling and simulation is an important method to evaluate process design of water circulation systems for recovery boilers. Dynamic process simulation software Apros was used in this work. Besides 1D modelling tools, another simulation methodology, namely Computational Fluid Dynamics (CFD), can be used in the water circulating studies. In this paper, a universal method to combine the results of CFD simulations with the 1D water circulation model. The data processing of the intermediate and final results of the simultions is managed by a specific Excel tool. The new generic heat fluxes were based on heat flux maps that were made with the state-of-the-art CFD models. As a summary of the benefits, a substantial improvement to the accuracy of the water circulation models, as well as enhanced speed and user independence was achieved.
    Original languageEnglish
    Number of pages8
    Publication statusPublished - 2017
    MoE publication typeNot Eligible
    EventInternational Chemical Recovery Conference, ICRC 2017 - Halifax, Canada
    Duration: 24 May 201726 May 2017
    http://www.icrc2017.com/index.html (Web page)

    Conference

    ConferenceInternational Chemical Recovery Conference, ICRC 2017
    Abbreviated titleICRC 2017
    Country/TerritoryCanada
    CityHalifax
    Period24/05/1726/05/17
    OtherPulp mills and biorefineries, a world of growth in chemical recovery cycle.
    Internet address

    Keywords

    • water circulation
    • CFD model
    • Apros
    • recovery boiler
    • heat flux

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