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    June 2008

    Kjell Erik Rian, EPT

    Master of Science in Energy and EnvironmentSubmission date:

    Supervisor:

    Norwegian University of Science and Technology

    Department of Energy and Process Engineering

    Mathematical Modeling of Coalescenceof Oil Droplets in Water Flow

    Eirik Kufås

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    Problem DescriptionThrough this Master's thesis the goal is to study mathematical models for coalescence of oil

    droplets in a water flow. The industrial basis for this project is the need for a mathematical model

    that can be applied in CFD simulations for the optimization of swirl-based coalescers.The project will be carried out in close cooperation with Aker Process Systems AS, Division of

    Advanced Separation.

    The following tasks should be considered in the project work:

    1. Carry out a literature review on liquid-liquid coalescence with special focus on oil droplet

    coalescence in a continuous water phase. Give a thorough discussion of the problem.

    2. Formulate a mathematical model for coalescence of oil droplets in a water flow.

    3. In cooperation with the advisors, select a suitable numerical simulation tool to study

    coalescence of oil droplets in a water flow. Give a description of the relevant parts of this programsystem.Perform relevant numerical simulations and discuss the results thoroughly.

    4. If necessary, suggest further improvements of the mathematical model.

    Assignment given: 01. February 2008

    Supervisor: Kjell Erik Rian, EPT

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