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Visar resultat 1 - 5 av 83 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Solar Photovoltaic Thermal Collectors and Ground Source Heat Pumps for Commercial Buildings : Case study in Sweden

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

    Författare :Doris Dijak; Elin Torstensson; [2023]
    Nyckelord :Ground Source Heat Pump; Photovoltaic Thermal Collectors; Borehole Thermal Energy Storage; Free Cooling.; Bergvärmepumpssystem; Termiska Solceller; Borrhålsbaserade Termiska Energilager; Frikyla.;

    Sammanfattning : In order to reduce emissions from the building sector, which stands for than a fifth of the global energy consumption today, efficient and fossil free heating and cooling systems are of importance. This study investigates the combination of solar photovoltaic thermal collectors and ground source heat pump systems in order to regenerate energy to the ground in combination with free cooling. LÄS MER

  3. 2. Elektrifiering av hydraulsystem : En studie kring lämpliga växlar och motorer för grävmaskinstillbehöret tiltrotatorn

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

    Författare :Hampus Lundgren; [2023]
    Nyckelord :cykloidväxel; elektrifiering; hydraulik; hållfasthet; mekanik; tiltrotator; cycloid drive; electrification; hydraulic; strength; mechanics; tiltrotator;

    Sammanfattning : Today’s electric excavators uses standard hydraulics to control external tools. To increase the degree of freedom the excavator is equipped with a tiltrotator placed between arm and bucket. LÄS MER

  4. 3. Development of a Hydraulic Front Wheel Drive for a Battery Electric Truck

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Johan Humla; Samuel Friman; [2023]
    Nyckelord :;

    Sammanfattning : This master thesis work has been executed at Volvo GTT in Gothenburg. Focus has beenlaid on implementing a hydraulic front wheel drive (HFWD) system on a battery electricvehicle (BEV). The earlier concept builds have been performed on internal combustionengine (ICE) driven trucks at Volvo Trucks. LÄS MER

  5. 4. Dimensioning study of EPR2 fuel pool cooling system

    Master-uppsats, KTH/Fysik

    Författare :Thomas Rubler; [2023]
    Nyckelord :EPR2; PTR; spent fuel pool; heat exchange; EPR2; PTR; bassäng för utbränt kärnbränsle; värmeväxling.;

    Sammanfattning : The PTR system allows the EPR2 fuel pool to be cooled. The evacuation of the residual power fromthe pool is ensured by several heat exchangers and pumps, which have to be dimensioned in order to meetdifferent requirements.In order to dimension them, the worst-case scenario of the components must first be determined. LÄS MER

  7. 5. Hydrogeological and economic analysis of a groundwater-based water supply system in rural Nepal

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

    Författare :Hamon Hedayatnasab; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Access to safe drinking water and sanitation is a given standard and considered as basic human rights in urban areas and industrialized countries. However, 40 % of the world's population living in rural areas in developing countries lack access to safe drinking water. LÄS MER