Essays about: "termisk modell"

Showing result 21 - 25 of 58 essays containing the words termisk modell.

  1. 21. Towards a virtual climate chamber – A physical experimental study

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Javier Arroyo Molina; [2020]
    Keywords : climate chamber; airflow; experimental characterization; energy; thermal cooling; klimatkammare; luftflöde; experimentell karakterisering; energi; termisk kilning;

    Abstract : This project focuses on experimentally characterizing one of the tools used at Ericsson AB to test product performance, the climatic chamber. By conducting experiments inside the climate chamber and post processing the data obtained, the airflow inside it can be understood and compared to outdoor experimental data. READ MORE

  3. 22. Modelling of Laser Welding of Aluminium using COMSOL Multiphysics

    University essay from KTH/Materialvetenskap

    Author : Jie Chen; [2020]
    Keywords : laser welding process; aluminium alloy; thermal-mechanical; COMSOL Multiphysics; hot cracking; thermal model; CFD model; mechanical model; Marangoni effect; lasersvetsningsprocess; aluminiumlegeringar; termisk-mekanisk; COMSOL-flerfysik; hetsprickning; termisk modell; CFD-modell; mekanisk modell; Marangoni-effekt;

    Abstract : This thesis presents a modelling approach of laser welding process of aluminium alloy from the thermo-mechanical point of view to evaluate the occurrence of hot cracking based on simulation results and relevant criteria. The model was created stepwise in COMSOL Multiphysics, starting with the thermal model where heat conduction of solid and liquid phase was computed. READ MORE

  4. 23. Environmental assessment of combined heat and cold production plants for district thermal networks, through optimization methods

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Robin Roure; [2019]
    Keywords : ;

    Abstract : With the international commitment behind the Paris Agreement, district thermal networks’ contribution to final energy demand are bound to increase as they allow significant emission savings. In addition to that, the cooling demand is expected to increase significantly in the coming years. READ MORE

  5. 24. Nonequilibrium gauge field in Two Particle Irreducible real time formalism

    University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Rasmus Hansen; [2019]
    Keywords : Gauge field; non-equilibrium; quantum field theory; Physics and Astronomy;

    Abstract : The purpose of this thesis is to study what effect a photon field has on the equations of motion and the decay of a charged scalar field in thermal equilibrium at finite temperature and outside of thermal equilibrium. To do this we calculate the two-particle irreducible effective action for the mean fields and propagators and derive their equations of motion. READ MORE

  6. 25. Preparation for a Thermal Balance Test of the MIST student satellite

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Fredrik Unell; [2019]
    Keywords : ;

    Abstract : The MIST project was founded in 2014 at KTH and has been worked on by roughly 100 students since.Thermal engineering has been an important part of the project from start and a thermal model has beendeveloped to predict ight conditions. The thermal model created by previous students has to be correlatedby performing a thermal balance test. READ MORE