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Visar resultat 1 - 5 av 15 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Comparative Analysis of Modern Energy Systems for Ice Rinks

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Pendar Hemati; [2023]
    Nyckelord :Ice rinks; refrigeration; heat recovery; CO2; ammonia; propane; Pistas de hielo; refrigeración; recuperación de calor; CO2; amoníaco; propano;

    Sammanfattning : Ice rinks are highly energy-intensive commercial buildings with an average annual energy consumption of 1,000 MWh, most of it being used to cover the simultaneous heating and cooling demands. The aim of this thesis is to find the most energy efficient energy system for ice rinks by evaluating different system modifications and refrigerants. LÄS MER

  3. 2. Internal strain in the magnetocaloric alloy MnCoSi

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

    Författare :Olivia Vaerst; [2021]
    Nyckelord :MnCoSi; Magnetocaloric Effect; Arc Melting; Strain; X-Ray Diffraction; Williamson-Hall; Rietveld Refinement; Physics and Astronomy;

    Sammanfattning : Cooling systems based on magnetic refrigeration are a promising and environmentally friendly alternative to commonly used gas-compression refrigeration. Magnetic refrigeration is based on the magnetocaloric effect. LÄS MER

  4. 3. Free cooling in data centers : Experimental test of direct airside economization with direct evaporative cooling

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

    Författare :Rickard Liikamaa; [2019]
    Nyckelord :Data center; free cooling; evaporative cooling;

    Sammanfattning : The backbone of the expanding Information and Communication Technology (ICT)-sector are data centers. In these, Information Technology (IT) equipment is housed which provides computational power for e.g. cloud computing and internet services. LÄS MER

  5. 4. An ICE concept optimized for Series Hybrid Application : A dive into how an ICE pairs with a Series hybrid drivetrain

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

    Författare :Axel Wallenberg; Alexander Frosteman; [2019]
    Nyckelord :Series hybrid; automobile; internal combustion engine;

    Sammanfattning : This report is a theoretical study of the potential an ICE (internal combustion engine) has when combined with the load case of a high-performance series hybrid drivetrain. It breaks down the different theoretical variables that affect engine efficiency and possible limitations that arise. LÄS MER

  7. 5. Future Freeze Box

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Johan Gustafsson; Fanny Ferdinandsson; [2019]
    Nyckelord :Förpackning; glass; cellulosa; hållbart; miljö; produktutveckling; framtid; mat; återvinning;

    Sammanfattning : During the third year of the innovation engineering program at Halmstad University the students have a project towards product development and innovation. This project spans over the course of the whole year and the goal is to use and implement everything that they have learned in to one project. LÄS MER