CFD-modeling for more precise operation of the kraft recovery boiler

Markus Engblom, Markus, Miikkulainen, Pasi, Anders Brink, Anders, Mikko Hupa, Mikko

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)

    Abstract

    During kraft recovery boiler operation, situations can be encountered where the furnace temperature is asymmetric when comparing one side of the furnace to the other (i.e., left vs. right). In this paper, computational fluid dynamics (CFD) modeling is applied to study furnace load and liquor spraying as causes for asymmetric furnace temperatures in a 4450 tons dry solids (TDS)/day kraft recovery boiler. The model predictions are compared against validation measurements. Decrease in furnace load is identified as the main cause of the temperature asymmetry. The simulations also suggest that, at decreased load, relatively small differences in the tilts of individual liquor sprays can increase the temperature asymmetry.
    Original languageUndefined/Unknown
    Pages (from-to)19–27
    Number of pages9
    JournalTappi Journal
    Volume11
    Issue number11
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed

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