Sökning: "convection"

Visar resultat 1 - 5 av 169 uppsatser innehållade ordet convection.

  1. 1. Inomhusklimat för simulering av hög boendetäthet i flerbostadshus

    Kandidat-uppsats, Lunds universitet/Avdelningen för Byggnadsfysik

    Författare :Linn Linderholt; Lovisa Persson; [2023]
    Nyckelord :Trångbodd; inomhusklimat; lägenhet; koldioxidproduktion; värmeproduktion; fuktproduktion; Technology and Engineering;

    Sammanfattning : In recent years overcrowding has decreased in European countries, but in Sweden overcrowding has increased, especially in the big cities. There is an ongoing problem in Swedish society regarding overcrowding that needs to be further investigated, and how these accommodations affect the design of the buildings they live in. LÄS MER

  3. 2. Mathematical Modeling and Simulation of Cryogenic Liquid Hydrogen Storage

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Gusten Zandler Andersson; [2023]
    Nyckelord :Modeling; Simulation; Liquid Hydrogen; Storage tank; Modelica; Chemical engineering; Technology and Engineering;

    Sammanfattning : Liquid hydrogen is an attractive alternative to fossil fuels in the aviation industry, but storing it both before and during flights introduces many challenges pertaining to the cryogenic liquid conditions required. Having reliable models to predict the dynamical behavior inside the storage tank is therefore of great interest. LÄS MER

  4. 3. Study on Lithium Battery Thermal Analysis For E-bike

    Magister-uppsats, Högskolan i Halmstad

    Författare :Sreekuttan Vijayan; Jais Jaimon; [2023]
    Nyckelord :Lithium-ion battery; e-bike; thermal analysis; forced convection cooling; natural air convection; temperature distribution; outlet ports; computational fluid dynamics;

    Sammanfattning : E-bikes, often known as electric bicycles, are becoming more and more well-liked as green modes of mobility. High-capacity lithium-ion (Li-ion) batteries are utilised to power these e-bikes because of their extended cycle life, high energy density, and low self-discharge rate. LÄS MER

  5. 4. Study of Triply Periodic Minimal Surfaces for Heat Transfer Applications

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :María Xuan Celaya Granados; [2023]
    Nyckelord :;

    Sammanfattning : In the pursuit of enhancing heat exchanger efficiency, several heat transfer- enhancing strategies are employed. The traditional methods include surface vibrations, microchannels, and integration of vortex generators. Additionally, new solutions are being studied, taking advantage of other relevant improve- ments in the engineering field. LÄS MER

  7. 5. Simulation of Combustion in a Hybrid Rocket Engine

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Oscar Andersson; [2023]
    Nyckelord :Thesis; Hybrid Rocket Engine; CFD; computational fluid dynamics; combustion;

    Sammanfattning : A numerical investigation on the combustion mechanics of a hybrid rocket engine is performed through unsteady Reynolds-averaged Navier-Stokes simulation. The hybrid rocket engine model is based on an experimental laboratory scale engine design operating on GOX and HDPE as a propellant. LÄS MER