Essays about: "CCM"

Showing result 1 - 5 of 75 essays containing the word CCM.

  1. 1. Computational Fluid Dynamics and Modeling of a Free Surface Flow

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Mathieu Marmier; [2023]
    Keywords : CFD; Free Surface Flow; VOF; STAR-CCM ; Multiphase Simulation; Nuclear Engineering; Fluid Mechanics;

    Abstract : This project deals with the CFD modelling of a free surface flow. The aim is to develop and validate a fast and accurate numerical model for stratified two-phase flows. Volume of Fluid (VOF) multiphase model is employed. The purpose is to use the developed numerical model for the design of an element within a compact nuclear reactor. READ MORE

  3. 2. Molecular characterization of vascular malformations using single-cell RNA sequencing and immunohistological analysis

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Amanda Norrén; [2023]
    Keywords : ;

    Abstract : CCM is a human disease in which vascular malformations develop in the central nervous system, predominantly in the brain. The malformations which can measure up to several centimeters in size are dilated and leaky vessels, with unstable cellular junctions and thin vessel walls. READ MORE

  4. 3. Investigation of fuel and water injection in gas turbine combustion : Evaluate the methodologies available in Star CCM+ for modeling of water injection in simplified combustor using liquid and gas fuels

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Sanger Shinwari; [2023]
    Keywords : Diesel and Methane fuel combustion; FGM combustion model; Lagrangian multiphase modelling; Inert Stream; Water injection; STAR CCM ;

    Abstract : The negative impact of gas turbine emissions on the environment and human health is a growing concern. Recent studies suggest injecting water into the combustion process effectively reduces emissions and increases power output. However, this approach presents new challenges that need to be thoroughly investigated. READ MORE

  5. 4. Analysis of a high step-up gain DC-DC converter for fuel cell and battery application

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Kaj Törngren Sato; [2023]
    Keywords : Fuel cell; High step-up DC-DC converter; Boost converter; Coupled inductors; Coupling factor; CCM; DCM; Duty cycle;

    Abstract : In sustainable energy systems those using fuel cells, high step-up gain converters are widely used to increase the output voltage to levels that can be used by other converters, such as inverters for grid connection or powering other AC loads. In order to obtain a higher voltage gain, in comparison to a traditional boost converter, often different topologies techniques are involved. READ MORE

  6. 5. Future Imaginaries of Negative Emission Technologies and Folklore Myths in Icelandic Basalt: Provisional Order Emerges from the Possible Magma in the Age of ‘Hauntology’ and Broken Time

    University essay from Lunds universitet/Kulturgeografi och ekonomisk geografi; Lunds universitet/Institutionen för kulturgeografi och ekonomisk geografi; Lunds universitet/Humanekologi

    Author : Rikke Jespersen; [2023]
    Keywords : NETs; Desire; Green Capitalism; Imaginaries; Storytelling; Pluriverse; Social Sciences;

    Abstract : Why do we in the Western part of world today tend to believe in technology’s mythical promises rather than in folklore myths? Imaginaries of the future influence political subjects’ actions in the present and play a key role in composing the trajectory towards the future. I have critically applied this notion to the implementation of negative emission technologies in the climate-neutrality strategy. READ MORE