Search for dissertations about: "dispersion fibre"

Showing result 1 - 5 of 41 swedish dissertations containing the words dispersion fibre.

  1. 1. Two-phase flows in gas-evolving electrochemical applications

    University dissertation from Stockholm : Mekanik

    Author : Ruben Wetind; [2001]
    Keywords : two-phase flow; electrochemical; gas-evolving; chlorate process; micro-bubbles; two-fluid model; numerical modelling; mixture model; drift-flux model; gas-evolving; electrolysis; current distribution; dispersion; image analysis; laser-sheet; fibre;

    Abstract : .... READ MORE

  2. 2. Pulp displacement washing - An investigation of the influence of fibre and bed properties using a novel measurment technique

    University dissertation from Stockholm : Mekanik

    Author : Jenny Lindau; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; displacement washing; pulp properties.; measurement technique; compression; dispersion; fibre damage; local properties; kraft pulp;

    Abstract : There are many incentives for making the pulp washing process as efficient as possible: an efficient separation of the pulp from the black liquor will increase energy efficiency, reduce costs by minimizing the need for make-up chemicals and improve the bleaching process. Research in this area has, however, been more or less neglected and in the existing literature there are many discrepancies as to how different parameters influence the washing process. READ MORE

  3. 3. Nonlinear impairment in strongly dispersion-managed optical communication systems

    University dissertation from Stockholm : Mekanik

    Author : Pontus Johannisson; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; intrachannel four-wave mixing; dispersion management; fibre optics; nonlinear optics;

    Abstract : .... READ MORE

  4. 4. Fibre Orientation Modelling Applied to Contracting Flows Related to Papermaking

    University dissertation from Stockholm : KTH

    Author : Marko Hyensjö; Anders Dahlkild; Markku Kataja; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fokker-Planck; fibre orientation; shear flow; fibre suspension; planar contraction; headbox; turbulent flow; TECHNOLOGY Engineering mechanics Other engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik Övrig teknisk mekanik;

    Abstract : The main goal of this work was to develop numerical models for studying the behaviour of fibres in an accelerated flow. This is of special interest for e.g. papermaking. READ MORE

  5. 5. Transitional and turbulent fibre suspension flows

    University dissertation from Stockholm : KTH

    Author : Mathias Kvick; Fredrik Lundell; Daniel Söderberg; Lisa Prahl Wittberg; Björn Hof; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; fibre suspension; turbulence; laminar-turbulent transition; image analysis; hydrodynamic stability; cellulose nanofibrils.; Teknisk mekanik; Engineering Mechanics;

    Abstract : In this thesis the orientation of macro-sized fibres in turbulent flows is studied, as well as the effect of nano-sized fibrils on hydrodynamic stability. The focus lies on enabling processes for new materials where cellulose is the main constituent. READ MORE