Sökning: "Coil"

Visar resultat 1 - 5 av 129 uppsatser innehållade ordet Coil.

  1. 1. Implementation of an Arc Model for MV Network with Resonance Earthing

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Muhannad Almulla; [2020]
    Nyckelord :Distribution system; electrical arc; high impedance fault; Petersen coil; resonance earth.;

    Sammanfattning : The most common fault type in electric power systems is the line to groundfault. In this type of faults, an electrical arc is usually developed. The thesispresents a mathematical model that describes the behavior of the arc during afault. LÄS MER

  2. 2. Measuring resistivity in a contactless fashion

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Jim Klintrup; [2020]
    Nyckelord :resistivity; magnetic; field; diffusive; eddy; current; coils; Physics and Astronomy;

    Sammanfattning : The aim of this thesis work was to develop a rig to measure the resistivity of a metal sample. The initial testing of the rig would be done at room temperature and calibration of the setup would be done with aluminum samples and then metallic alloys would be studied. LÄS MER

  3. 3. Modeling of waste heat recovery system and outdoor swimming pool : Waste heat from hotel kitchen recovered by heat exchanger transferred to pool

    Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Linn Olanders; [2020]
    Nyckelord :Heat exchanger; heat recovery; waste heat; pool; swimming pool; comsol; modeling; commercial kitchen; kitchen;

    Sammanfattning : This project was performed to evaluate if waste heat from hotel kitchens is enough to heat outdoor swimming pools in southern Europe or if it can be used as a compliment to another heat source. Another aim was to analyze the simulations and calculations of the pools and the heat recovery system. LÄS MER

  4. 4. Cooling storage for 5G EDGE data center

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

    Författare :Jennifer Johansson; [2020]
    Nyckelord :Energy; Data center; Free cooling; 5G;

    Sammanfattning : Data centers requires a lot of energy due to that data centers count as the buildings also contains servers, cooling equipment, IT-equipment and power equipment. As the cooling solution for many data centers around the world right now, the compressor-based cooling solution counts for around 40% of the total energy consumption. LÄS MER

  5. 5. Communication Channel Measurement and Modeling for Inductive Wireless Power Transfer

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Love Rosén; [2020]
    Nyckelord :Wireless power transfer; WPT; Qi Specification; Inductive coupling; Wireless charging; Channel modeling; Technology and Engineering;

    Sammanfattning : Wireless Power Transfer (WPT) technology has experienced phenomenal success in the application of wireless charging of smartphones. With the Qi Specification becoming the dominant standard, wireless charging's convenience goes beyond cable-free charging to facilitate interoperability between chargers and devices from different vendors. LÄS MER