Sökning: "Three-dimensional heat transfer"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Three-dimensional heat transfer.

  1. 1. Evaluation of Strategies for the Integration of Building Information Modelling (BIM) with Simulation of Fires in Enclosures

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Silvia Parra Diettes; [2019]
    Nyckelord :Building Information Modelling; Simulation of Fires; Computational Fluid Dynamics; Fire Dynamics Simulator; Thermal properties; Industry Foundation Classes; Technology and Engineering;

    Sammanfattning : Computational Fluid Dynamics (CFD) is the study of fluid flows for the analysis of phenomena by scenarios simulated in a computer-based environment. One of the most well-known CFD simulation packages in the fire safety field is Fire Dynamic Simulator (FDS). LÄS MER

  2. 2. Residual Stresses Induced by Welding in High Performance Steel

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Byggkonstruktion och brand; Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Rebecca Erlingsdotter Stridsman; Felicia Månsson; [2018]
    Nyckelord :Residual Stresses; High Performance Steel; Heat transfer; Abaqus; Welding;

    Sammanfattning : Today, high performance steel as a construction material is treated as conventional steel in the European standards. Referring to the Eurocodes, the buckling curves for dimensioning of steel constructions only presents values up to steel grade S460, meaning that the full potential of high performance steel is not considered. LÄS MER

  3. 3. 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

  4. 4. 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

  5. 5. Surfaced Print

    Kandidat-uppsats, Högskolan i Borås/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