Sökning: "Porous Media"

Visar resultat 1 - 5 av 38 uppsatser innehållade orden Porous Media.

  1. 1. Experiments and simulations of gas flow through a NiCd battery

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Sarah Petersson; [2023]
    Nyckelord :NiCd; battery; porous medium; experiment; CFD; NiCd; batteri; poröst medium; experiment; CFD;

    Sammanfattning : This report describes the thesis work carried out regarding experiments and simulations of the gas flow through a NiCd battery. The objective of the work was to investigate how different geometries of the flip top vent on the battery and the level of porosity of the flame arresting disc impacted the amount of potassium carbonate created at the outlet of the vent. LÄS MER

  3. 2. Simulation of the Filling of Epoxy in Resin Impregnated Paper Bushings : Analysis of Temperature Measurements during Filling of Epoxy and the Generation of New Filling Recipes to Avoid Cavities in the RIP Bushing

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Hanna Damsgaard Falck; [2023]
    Nyckelord :Porous media; COMSOL Multiphysicis; Darcy s Law; Richard s Equation; Resin Impregnated Paper Bushings; RIP Bushings; Bushings; Transformers; Epoxy; Simulation;

    Sammanfattning : The goal of the project was to create a model in COMSOL Multiphysics that can simulate thefilling of resin (epoxy) in Resin Impregnated Paper (RIP) bushings. Using the model new fillingrecipes that avoid problematic double-fronts and thereby avoid the creation of cavities in thebushings should be designed. LÄS MER

  4. 3. Moisture Transport in PA6

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Emanuel Markström; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Polyamide 6 (PA6) is known to absorb water from its environment due to its chemical structure. The water absorption leads to changes in the mechanical properties as well as an increase in volume (swelling) of the polyamide. LÄS MER

  5. 4. Unspecific interactions in different batch variations of agarose based base matrices at different NaCl concentrations.

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Kejvan Ghofranpanah; [2022]
    Nyckelord :Lysozyme; hydrophobicity; size exclusion chromatography; NaCl concentrations; isocratic elution; Lysozym; hydrofobicitet; size exclusion chromatography; NaCl-koncentrationer; isokratisk eluering;

    Sammanfattning : Size exclusion chromatography (SEC) separates molecules based on their actual size rather than their molecular weight. This indicates that the smaller a molecule is, the longer it will be held in the column since it can penetrate the pores more effectively than a bigger molecule, resulting in a longer retention time, whereas the larger molecule has a shorter retention time. LÄS MER

  7. 5. Epoxy filling simulation of an RIP bushing

    Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Nil Tabudlong Jonasson; Simon Palm; [2022]
    Nyckelord :COMSOL; Porous Media Flow; RIP Bushing; Electrical Bushing; Filling Simulation;

    Sammanfattning : The manufacturing process for the core of an RIP bushing was studied. Simulations of a test model was performed, due to the non-linear nature of the fluid filling process. Varying of governing parameters in the model, that could realistically be varied, was carried out and their affect was observed. LÄS MER