Sökning: "Heating pump"

Visar resultat 1 - 5 av 296 uppsatser innehållade orden Heating pump.

  1. 1. Analys av fastighetsområde

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

    Författare :Izabella Simonsson; [2020]
    Nyckelord :;

    Sammanfattning : Under 2018 hade bostads- och servicesektorn en energianvändning på 147 TWh, vilket motsvarar un- gefär en tredjedel av Sveriges totala energianvändning. Idag har Sverige satt upp energi- och klimatmål som ska uppnås, där energianvändningen för år 2030 ska vara 50 % mer effektiv än den var under år 2005. LÄS MER

  2. 2. 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

  3. 3. 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

  4. 4. Aqua Ammonia as Secondary Fluid in Ice Rink Applications

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

    Författare :Brianna Kilberg; [2020]
    Nyckelord :Ice rink; secondary fluid; aqua ammonia; ammonia water; thermophysical properties; corrosion; pressure drop; pumping power; refrigeration;

    Sammanfattning : Refrigerant management is crucial in the attempts to slow climate change. Emissions from the refrigeration sector are primarily due to poor management and unsafe destruction of refrigerants currently in circulation. Safe refrigerant management and improving system operating efficiency can result in a reduction of emissions. LÄS MER

  5. 5. Återladdningsförmågan hos en Bergvärmepump

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Felix Johansson; [2020]
    Nyckelord :;

    Sammanfattning : Geothermal energy that is being used for space heating with help of heat pumps is getting more and more common. In Sweden 2016, there was over 300 000 different facilities using geothermal energy with the help of bore hole heat exchangers, so called ground source heat pumps (GSHP). LÄS MER