Sökning: "Ground source heat exchanger"

Visar resultat 1 - 5 av 33 uppsatser innehållade orden Ground source heat exchanger.

1. 1. 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

3. 2. Integrating Ground Source Heat Pumps into Elderly Homes as Energy-efficient Heating and Cooling Solution - A Swedish Case Study

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

   Författare :Moritz Kuhleber; [2021]
   Nyckelord :Ground source heat pumps; Elderly homes; Thermal comfort; Energy performance; Multi-family buildings; Technology and Engineering;

   Sammanfattning : Energy efficiency and environmental questions have gained increased attention over the last decade. In combination with global warming and increasing cooling demands, the Swedish market for combined heating and cooling solutions such as ground source heat pumps expands. LÄS MER

4. 3. Performance Evaluation of Ground Heating and Cooling Systems - Long-term performance measurements of two case buildings

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

   Författare :Hao Liu; Hongyi Zhang; [2020]
   Nyckelord :Ground source heat pump GSHP ; System performance; Long-term monitoring; Geothermal; Borehole heat exchangers; Office building; Uncertainty analysis; Deep Green Cooling; Free cooling; Heating; Cooling; Technology and Engineering;

   Sammanfattning : Geothermal energy is one of the oldest and most sustainable energy sources and has been used for thousands of years. The temperature of the ground at shallow depth is fairly constant, above the air temperature in winter and lower than the ambient temperature in summer. LÄS MER

5. 4. Performance evaluation of ground source heat pump heating systems in Stockholm

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

   Författare :MARCUS BÖRJESSON; [2020]
   Nyckelord :Ground source heat pump system; GSHP system; vertical borehole; ground heat exchanger; BHE; EED; evaluation; COP; SPF; Ideal temperature dependent SPF; temperature dependent SPF efficiency; SEPEMO; Sweden; Bergvärmesystem; borrhål; kollektor; EED; utvärdering; COP; SPF; ideal temperaturberoende SPF; temperaturberoende SPF-verkningsgrad; SEPEMO; Sverige;

   Sammanfattning : GSHP systems are common in Sweden but there are few evaluations quantifying the performance of the systems and highlighting problem that occurs during operations. The research project Annex 52 Long-term performance measurement of GSHP systems serving commercial, institutional and multifamily building part of IEA HPT TCP proves the need to systematically be able to evaluate GSHP systems. LÄS MER

7. 5. Sensitivity Analysis and Optimization of the Vertical GSHP (Ground source heat pump)

   Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

   Författare :Sriram Ramanathan; [2020]
   Nyckelord :GSHP; Borehole heat exchanger; Geo-thermal energy.;

   Sammanfattning :   GSHP (Ground source heat pump), uses geothermal energy which is a form of green and sustainable energy.  Geothermal energy is also a continuous source of energy, unlike wind energy. The results from this thesis work will be applicable for both GSHP that are being used for space heating, and the ones which have a bottom organic Rankine cycle. LÄS MER