Sökning: "Heat pump free cooling"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Heat pump free cooling.

  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. Free cooling and PVT integration in a ground-source heat pump (GSHP) system

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

    Författare :Christopher Pourier; [2023]
    Nyckelord :Ground-source heat pump; borehole; GSHP; photovoltaic thermal collector; PVT; free cooling; Ytjordvärmepump; borrhål; GSHP; solfångare; PVT; frikylning;

    Sammanfattning : The performance of ground-source heat pump (GSHP) systems can be negatively affected over time by soil temperature degradation of boreholes (BH) in heating dominated climates. Land area is scarce in the dense urban environments typical of multi-family houses (MFH) and can lead to accelerated degradation- in tight BH fields. LÄS MER

  4. 3. Ekonomisk driftoptimering av det termiska energisystemet på Karlstad centralsjukhus : Framtida driftrekommendationer baserat på linjärprogrammering

    Master-uppsats, Karlstads universitet

    Författare :Petter Mellander; [2022]
    Nyckelord :Linear programming; ground source cooling; ground source heat pump; district heating; heat pump; cooling machines; ground storage; borehole; Linjärprogrammering; frikyla; bergvärme; fjärrvärme; värmepump; kylmaskin; marklager; borrhål;

    Sammanfattning : Studien använder linjärprogrammering för att optimera driften av det termiska energisystemet på Karlstad centralsjukhus ur ett ekonomiskt perspektiv. Bakgrunden till studien är de höga elpriser som rådde under slutet av 2021 samt att det i dagsläget finns kunskapsluckor angående hur systemet bör köras optimalt. LÄS MER

  5. 4. Dynamic Modeling of Target's Cooling Systems

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Maximilian Cahlin; [2021]
    Nyckelord :Dynamic modeling; Modelica; Dymola; Fluid mechanics; Thermodynamics; Technology and Engineering;

    Sammanfattning : The thermal energy generated from the spallation process in the ESS facility must be cooled by cooling systems in order to ensure safe operation of the facility. It is of interest to understand what operating conditions of the cooling systems will ensure this safety for both stationary conditions and transient events. LÄS MER

  7. 5. Energy-efficient HVAC solution-sets for low-energy apartment buildings in Nordic climates - An analysis of an affordable housing project

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Laurence Gibbons; [2021]
    Nyckelord :Heating; Ventilation; Free cooling; Borehole; Ground source heat pump; Compact unit; Solar thermal collector; District heating; Underfloor heating; Radiators; Convectors; Thermal energy storage; Norway; Sweden; Finland.; Technology and Engineering;

    Sammanfattning : To meet the aims of the Paris climate agreement, it is necessary to reduce energy use in buildings. Efficient HVAC systems are a critical part in achieving a low delivered energy use. LÄS MER