Sökning: "kylning"

Visar resultat 1 - 5 av 185 uppsatser innehållade ordet kylning.

  1. 1. Termisk rusning i litiumjonbatterier : En studie kring brand i litiumjonbatterier med fokus på räddningstjänstens insatser med vattenkylning

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser; Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Martin Scott; Albin Henning; [2021]
    Nyckelord :E-fordon; elbilar; räddningstjänst; kylning; släckning; litiumjonbatterier;

    Sammanfattning : Litiumjonbatterier är en kraftigt ökande energibärare som finns i allt från mobiltelefoner till datorer och elbilar. Användandet av dessa batterier är en nödvändighet i dagens energimarknad, och andelen elbilar ökar lavinartat år efter år. LÄS MER

  2. 2. Quantum statistics and the magnetocaloric effect

    Kandidat-uppsats, Uppsala universitet/Materialteori

    Författare :Anna Sandberg; [2020]
    Nyckelord :quantum statistics; magnetocaloric effect; magnetocaloric; magnetic cooling; simulation;

    Sammanfattning : Caloric materials show prospect in replacing the function of vaporcompression systems in todays cooling devices, resulting in more energy efficient cooling and eliminating the need for refrigerents which contribute to climate change. This project has focused on magnetocaloric materials, which experience changes in temperature when exposed to magnetic fields. LÄS MER

  3. 3. Small Scale Polygeneration System for Hotels in Costa Rica

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :David Vargas Masis; [2020]
    Nyckelord :;

    Sammanfattning : In a world where energy consumption increases every year and the current system harms the environment, new technologies are necessary to cope with such intensive energy demands worldwide. In such an era, polygeneration systems are an innovative and sustainable solution for that problem. LÄS MER

  4. 4. The carbon footprint caused by the oversizing of building service systems : A case study of an NHS Hospital

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Maria Hein; [2020]
    Nyckelord :Design; dimensioning; heating; cooling; boiler; chiller; pump; energy performance; environmental impact; mitigation strategy;

    Sammanfattning : Energy usage in buildings is a main contributor to CO2 emissions and in order for the EU to reach the 2050 goal of carbon-neutrality, there is a great need to improve the energy efficiency in buildings, particularly commercial buildings that often are substantially overdesigned. Excess margins in the design process of building services result in an oversizing of these systems which has great environmental impacts, divided up as the operational and embodied carbon footprints. LÄS MER

  5. 5. Heat Pump Data Performance Analysis of Large Scale Ground Source Heat Pump Systems

    Kandidat-uppsats, KTH/Energiteknik; KTH/Energiteknik

    Författare :Marcus Norrman; Felix Monthan; [2020]
    Nyckelord :;

    Sammanfattning : This study aimed at refining and improving current methodology concerning large-scale heat pump performance. This study was performed on two large-scale ground source heat pumps located in Solna (Stockholm). These were connected to an aquifer thermal energy storage system which provided heating and cooling for two office buildings. LÄS MER