The flow resistance of fiber sheet during initial dewatering. Issue 12 (9th September 2016)

• Record Type: Journal Article
• Authors: Koponen, Antti; Haavisto, Sanna; Liukkonen, Johanna; Salmela, Juha
• Is Part Of: Drying technology. Volume 34:Issue 12(2016)
• Page Start: 1521
• Page End: 1533
• Publication Date: 2016-09-09
• Subjects: Flow resistance -- paper dewatering -- pulp drainage; Drying -- Periodicals; Desiccation; 660.28426
• DOI: 10.1080/07373937.2015.1132427
• Languages: English
• ISSNs: 0737-3937

Abstract

ABSTRACT: 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.