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Showing result 1 - 5 of 10 essays matching the above criteria.

  1. 1. Thermal Analysis of Tap- Changers

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Daniel Lundberg; [2023]
    Keywords : Thermal analysis; COMSOL; tap-changers; heat transfer;

    Abstract : This thesis provides a way of mapping the temperature development of the tap-changer oil for some different standardized loading cases. The project was in collaboration with Hitachi Energy for one of their production cites situated in Ludvika, Sweden. The software used for the simulation environment was COMSOL 6.1 which is a finite element solver. READ MORE

  3. 2. Automatic Interpretation of Ion Beam Measurements of Walls in Fusion Machines

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

    Author : Daniel Lundberg; Ludvig Johansson; [2023]
    Keywords : ;

    Abstract : The purpose of this study is to investigate whether it is possible to automatically interpret theresults of Time-of-flight Elastic Recoil Detection Analysis (ToF-ERDA). And if so, find out if the automaticinterpretation is quicker and/or more accurate than the current approach that consists of manualanalysis. READ MORE

  4. 3. Long term aging and creep exposure for advanced heat resistant alloys : A phase analysis

    University essay from Uppsala universitet/Institutionen för materialvetenskap; Uppsala universitet/Institutionen för kemi - Ångström

    Author : Daniel Lundberg; Filip Wilson; Hjalmar Gunnarsson; Leo Sjörén; Robin Xu; Erik Djurberg; [2021]
    Keywords : Austenitic stainless steel; ferritic steels; nickel based alloys; creep; ageing; XRD; SEM EDS; LOM;

    Abstract : This project was ordered by Sandvik Materials Technology and was performed by a group of students at Uppsala university. The purpose of the project was to study precipitation behavior and structure stability in six advanced heat resistant alloys. Each sample were subjected to a creep rupture test in 600 or 700°C depending on the alloy type. READ MORE

  5. 4. Automatic Measurement Setup for new Optical FPGA:s

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

    Author : Tommy Lundberg; Daniel Nee; [2019]
    Keywords : silicon photonics; grating couplers; automatic testing; optical fibers;

    Abstract : Aiming to reduce research and development times in the field of silicon photonics, this paper presents a method for automatized device testing. Focus lies on automatic optical coupling between the grating couplers on a chip and optical fibers and efficient switching between devices when performing laboratory tests on silicon photonic chips. READ MORE

  6. 5. CSR reporting in the Banking Industry : A study of 10 Banks in Sweden (2012-2016)

    University essay from Högskolan i Jönköping/IHH, Företagsekonomi

    Author : Jonathan Lundberg; Daniel Ek; [2018]
    Keywords : CSR; Disclosure; Banking Industry; Legitimacy theory; Stakeholder theory;

    Abstract : Background: Corporate social responsibility has received a lot of attention because of the impact that companies have on the society and the environment. EU is taking legislative measures to further increase the awareness and importance of CSR. READ MORE