The flow resistance of fiber sheet during initial dewatering

Antti Koponen, Sanna Haavisto, Johanna Liukkonen, Juha Salmela

    Research output: Contribution to journalArticleScientificpeer-review

    9 Citations (Scopus)


    In this work, a novel experimental filtration device with pressure profiling was used for analyzing water removal from the fiber network in the forming section of a paper machine. The experimental data were used to develop a stratified model for the flow resistance of the developing fiber sheet during the filtration process. The new model was verified with both laboratory- and pilot-scale measurements and excellent agreement was observed between them. It was also observed that there is a strong linear correlation between the maximal attainable solid content of a filtered sheet after the forming section and the instantaneous response to pressure of the flow resistivity of the furnish.
    Original languageEnglish
    Pages (from-to)1521-1533
    JournalDrying Technology
    Issue number12
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed


    • flow resistance
    • paper dewatering
    • pulp drainage


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