Sökning: "Three-dimensional heat transfer"

Visar resultat 6 - 10 av 12 uppsatser innehållade orden Three-dimensional heat transfer.

  1. 6. Pressure loss characterization for cooling and secondary air system components in gas turbines

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Frida Isaksson; [2017]
    Nyckelord :Gas turbines; cooling and secondary air system; pressure losses; discharge coefficient; minor loss; one-dimensional modelling;

    Sammanfattning : There is a constant struggle to increase the efficiency in gas turbines, where one method is to have a higher inlet temperature to the turbine. Often, this results in temperatures higher than the critical temperature of the materials, which makes cooling of the components an important part of the turbine. LÄS MER

  3. 7. Thermal energy management and chemical reaction investigation of micro-proton exchange membrane fuel cell and fuel cell system using finite element modelling

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Seán McGee; [2015]
    Nyckelord :0D model; 2D model; 3D model; chemical engineering; Comsol Multiphysics; energy; environment; FC; fluid dynamics; fuel cell systems; heat transfer; JAQ; laboratory experiments; mobile charging; modeling; modelling; myFC; PEM; polymer electrolyte membrane; PowerTrekk; process engineering; proton exchange membrane; sustainability; 0D-Modell; 2D-Modell; 3D-Modell; Chemieingenieurwesen; COMSOL Multiphysics; Energie; Umwelt; FC; Fluiddynamik; Brennstoffzellensysteme; Wärmeübertragung; JAQ; Laborexperimente; mobile Ladesysteme; Modellieren; myFC; PEM; Feststoffpolymer-Brennstoffzelle; PowerTrekk; Verfahrenstechnik; Protonenaustauschmembran-Brennstoffzelle; Nachhaltigkeit; 0D-modell; 2D-modell; 3D-modell; kemiteknik; Comsol Multiphysics; energi; miljö; FC; fluiddynamik; bränslecellssystem; värmeöverföring; JAQ; laboratorieförsök; mobil laddning; modellering; myFC; PEM; polymerelektrolytmembran; PowerTrekk; processteknik; protonväxlingsmembran; hållbarhet;

    Sammanfattning : Fuel cell systems are becoming more commonplace as a power generation method and are being researched, developed, and explored for commercial use, including portable fuel cells that appear in laptops, phones, and of course, chargers. This thesis examines a model constructed on inspiration from the myFC PowerTrekk, a portable fuel cell charger, using COMSOL Multiphysics, a finite element analysis software. LÄS MER

  4. 8. Surfaced Print

    Kandidat-uppsats, Akademin för textil, teknik och ekonomi

    Författare :Camilla Arnbert; [2015]
    Nyckelord :fashion design textile design transfer printing check surface manipulation;

    Sammanfattning : This bachelor degree work explores the interrelation between print and surface in fashion design and aims to investigate the expressional possibilities in merging of techniques. With focus on creating an irregular surface through embroidery and fringing, three-dimensional expressions are created, resulting in an illusion of depth and movement within the motifs. LÄS MER

  5. 9. Development of a three-dimensionalthermal analysis tool for sounding rockets

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :André Ryman; Andreas Wahlberg; [2014]
    Nyckelord :Three-dimensional heat transfer; Finite element method; Sounding rocket; Värmeledning; tredimensionellt; Finita elementmetoden; Sondraket; Simulering;

    Sammanfattning : This thesis has been performed in collaboration with the Swedish Space Corporation at the department Science Services. SSC provides services in the areas of spacecraft subsystems, ground stations and sounding rockets to enable governments, companies and research institutes to benefit from space. LÄS MER

  7. 10. Modeling of Heat Transfer in LDConverter (BOF) Lining

    Master-uppsats, KTH/Tillämpad processmetallurgi

    Författare :Georgina Jahan; [2012]
    Nyckelord :Mathematical Modeling; LD Converter; Refractory Lining; Ansys Fluent; Temperature Profile Distribution.;

    Sammanfattning : During the production of steel in the LD converter the refractory lining is exposed to high temperature emulsion of steel, slag and gas. It protects the steel body of the vessel to come in contact with the molten steel. LÄS MER