Sökning: "vertical borehole"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden vertical borehole.

  1. 1. Effect of increased vertical stress on the state of grains in tailings

    Master-uppsats, Luleå tekniska universitet/Geoteknologi

    Författare :Shane Aulestia; [2023]
    Nyckelord :Tailings; Tailings dams; Breakage; Oedometer; Image acquisition analysis; Avfall; Avfallsdammar; Brytning; Ödometer; Bildinsamling och analys;

    Sammanfattning : Tailings storage facilities (TSFs) serve as structures for storing tailings, i.e., waste materials generated by the mining industry. LÄS MER

  3. 2. Construction and Validation of a Lab-scaleBorehole Thermal Energy Storage Model

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

    Författare :Haoyang Dong; [2022]
    Nyckelord :borehole heat exchanger; lab-scale model; experimental construction; experiment test; validation; borrhålsvärmeväxlare; labbmodell; experimentell konstruktion; experimenttest; validering;

    Sammanfattning : Borehole heat exchangers are widely used in heat pumps of residential buildings and industrialsystems. It is known as one of the most energy ecient technologies which provides heatingand cooling by using sustainable geothermal energy. The life time of borehole heat exchangerslasts more than 50 years which is longer than combustion boilers. LÄS MER

  4. 3. Inversion of SkyTEM Data Based on Geophysical Logging Results for Groundwater Exploration in Örebro, Sweden

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Andrée Kindlund; [2021]
    Nyckelord :SkyTEM; hydrogeophysics; geophysical logging; A priori; groundwater exploration;

    Sammanfattning : Declining groundwater tables threatens several municipalities in Sweden which drinking water is collected from. To ensure a sound drinking water supply, the Geological Survey of Sweden has initiated a groundwater exploration plan. 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