Search for dissertations about: "impeller"

Showing result 1 - 5 of 28 swedish dissertations containing the word impeller.

  2. 1. Disintegration of Lime Mud Particles during the Causticizing Operation

    Author : Pia Tiljander; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CaCO3; Ca OH 2; CaO; lime mud; mixing; particles; slaking; causticizing; disintegration; impeller;

    Abstract : It is of essential importance that the white liquor used in processing wood chips to produce pulp in the sulphate pulp process is of high and uniform quality. The white liquor is, together with lime mud, produced in the causticizing plant where sodium carbonate is causticized with lime, slaked in green liquor. READ MORE

  4. 2. Some aspects of the design of stirred vessels

    Author : Mattias Ljungqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; impeller discharge; mixing times; impeller displacement; CFD; turbulence; suspension; closed stirred vessels; LDA;

    Abstract : .... READ MORE

  5. 3. Fluid and Solid Particle Dynamics in Stirred Vessels

    Author : Mattias Ljungqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mixing time; pitched blade turbine; impeller modelling; stirred vessels; computational fluid dynamics; multi-fluid model; suspension of solids; phase-Doppler anemometry; laser Doppler anemometry; closed vessels;

    Abstract : The present thesis deals with the fluid dynamics of stirred vessels and particularly those that are to be used in conjunction with solids suspensions. Stirred vessels are very common in the process industry and large amounts of energy can be saved by optimising their operation. READ MORE

  6. 4. Rheological modeling of particle flows in high shear granulation

    Author : Mohammad Khalilitehrani; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; continuum modeling; rheology; disc impeller; high shear granulation;

    Abstract : High shear granulation is an important process in a wide variety of applications, more specifically in pharmaceutical industries as a basic step in the tableting process. The process includes two major steps: dry high shear granulation and wet high shear granulation. It aims at producing granules with a specific size and material composition. READ MORE

  7. 5. Hydrodynamics in a stirred square tank investigated using PIV and LDA measurements

    Author : Jesper Kilander; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy dissipation; macro instabilities; large eddy PIV approach; laser doppler anemometry; hydrofoil impeller; particle image velocimetry; hydrodynamics; square tank;

    Abstract : .... READ MORE