Sökning: "fysik 1000"

Visar resultat 11 - 15 av 54 uppsatser innehållade orden fysik 1000.

  1. 11. Simulation Testbed for Liquid Chromatography

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :David Andersson; [2021]
    Nyckelord :;

    Sammanfattning : The stlc package is proposed as a tool for simulation of liquid chromatography by implementing several lumped kinetic models which combine diffusive mass  transport and adsorption isotherm equations. The purpose of the package is to provide computationally efficient approximations to the general rate model of chromatography. LÄS MER

  3. 12. Numerical modelling of calcination of limestone : An evaluation of existing calcination model

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Marcus Svensson; [2021]
    Nyckelord :Simulation; Modelling; Numerical; Shrinking core model; Calcination; Limestone;

    Sammanfattning : Calcination is important for modern society as we know it since products from the reaction is used inseveral industries. Calcination is a chemical reaction where a solid particle, e.g., limestone, is exposedto high temperature which causes volatile impurities to be released from the particle. LÄS MER

  4. 13. A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR

    Master-uppsats, KTH/Fysik

    Författare :Yuer Zhao; [2021]
    Nyckelord :In-vessel melt retention; corium pool; Zr oxidation ratio; melt pool convection; CFD; SST k-ω turbulence model; Smältretention i kärlet; koriumpöl; Zr-oxidationsförhållande; konvektion i en smältpöl; CFD; SST k-ω turbulensmodell;

    Sammanfattning : This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). LÄS MER

  5. 14. Impact of calcination temperature and time on quicklime slaking reactivity

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Erik Björnwall; [2021]
    Nyckelord :Lime slaking reactivity; limestone calcination; Calcium carbonate; SEM;

    Sammanfattning : In this master thesis work calcination parameters' impact on the resulting quicklimes slaking reactivity is investigated. This is done by calcination of three different sedimentary limestones in an N2 atmosphere according to a design of experiment matrix. The limestones are from Wolica Poland, Slite Sweden and Jutjärn Sweden. LÄS MER

  7. 15. Formation of biological membranes

    L3-uppsats, Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Författare :Rebecka Lexelius; [2020]
    Nyckelord :Molecular Dynamics; Lipids; DPPC; Biophysics;

    Sammanfattning : The amphiphilic property of phospholipids drives the spontaneous formation of various molecular aggregates in response to their surrounding environment. In this study the concentration of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) lipids in water was varied in order to investigate the naturally occurring arrangements over time, and specifically the propensity to form monolayers on the water-vacuum interface. LÄS MER