Sökning: "djupa borrhål"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden djupa borrhål.

  1. 1. 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

  3. 2. Feasibility of Enhanced Geothermal Systems in the Precambrian crystalline basement in SW Scania, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Hanna Kervall; [2021]
    Nyckelord :EGS; deep drilling; geothermal; petrology; petrophysical properties; Sveconorwegian; Earth and Environmental Sciences;

    Sammanfattning : The ability to evaluate the geothermal potential at a depth of five to six kilometres in the crystalline bedrock is crucial for the EGS-technology to be utilized in the future. This work focuses primarily on presenting expected geological conditions at great depths in southwestern Scania. The study is based on information from E. LÄS MER

  4. 3. Monitoring of a heat pump system using deep borehole heat exchangers

    Master-uppsats, KTH/Energiteknik

    Författare :Baptiste Delattre; [2018]
    Nyckelord :;

    Sammanfattning : Sweden has been one of the first countries in the world to use ground-source heat pumps (GSHP) to supply heating and cooling to its buildings. Today, it is the leading country in Europe and new installations tend to have larger capacities. LÄS MER

  5. 4. Study of a new method to measure the stresses in rock by image technology : Use of sawn slots and DIgital Image Correlation

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geoteknologi

    Författare :Patrik Emanuelsson; [2018]
    Nyckelord :Digital Image Correlation; Numerical modelling; Stress measurement; Sawn slots;

    Sammanfattning : In rock constructions and mining it is important to know the current stress situation in the rock due to safety and construction reasons. Two of the widely used stress measurement methods are overcoring and hydraulic fracturing. Both methods are expensive, need new boreholes, and are complex and time consuming. LÄS MER

  7. 5. Modelling and simulation for optimizing adeep, closed-loop geothermal heat exchangesystem

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Bechara Hage Meany; [2018]
    Nyckelord :;

    Sammanfattning : This thesis examines the potential of deep geothermal closed-loop installation for the heat supply of the Swedish city of Karlskoga. The thermal behavior of 5. LÄS MER