Essays about: "boreholes"

Showing result 21 - 25 of 65 essays containing the word boreholes.

  1. 21. The Impact of Fracture Orientation on the Choice of Grout Fan Geometry - a Statistical Analysis

    University essay from KTH/Jord- och bergmekanik

    Author : Fredrik Osterman; [2019]
    Keywords : Rock Fissure Grouting; Grout Fan Geometry; Geology; Discrete Fracture Network; Sprickinjektering i berg; skärmgeometri; geologi; diskreta spricknätverk;

    Abstract : Water ingress into rock tunnels is a problematic phenomenon – especially in urban areas – as a lowered groundwater table may cause harmful settlements. Furthermore, too much ingress can be an incentive for the environmental court to halt the tunnel process, in order to protect the nature as part of a national interest. READ MORE

  3. 22. Evaluation of Darcy Flow Velocities Obtained from Borehole Dilution Tests

    University essay from Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Author : Johanna Lundin; [2019]
    Keywords : Single borehole dilution tests SBDT ; Darcy flow velocity; karst aquifer; porous aquifer; Donauried-Hürbe; Germany; Technology and Engineering;

    Abstract : The project is part of a larger investigation of the water protection area Donauried-Hürbe. This area is a recharge zone used by one of Germany’s biggest water supply companies, the Zweckverband Landwasserversorgung (LW). READ MORE

  4. 23. Integrated Combined Heat and Power Plant with Borehole Thermal Energy Storage

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Amol Yevalkar; [2019]
    Keywords : ;

    Abstract : Countries like Sweden, that experience temperatures below 0 𝑜C, have a high heating demand during winters. The heating demand in Sweden is satisfied through district heating, electric heating, heat pumps and biofuel boilers. The fossil fuels account for around 5 % of the heating market. READ MORE

  5. 24. Acoustic Soil-Rock Probing : A Case Study in Gubbängen

    University essay from KTH/Jord- och bergmekanik

    Author : Helen Kalm; [2019]
    Keywords : soil-rock probing; spectrogram; frequency analysis;

    Abstract : Soil-rock probing (Jb-probing) is the most common probing method in Sweden. Due to the penetration capacity of the Jb-probing it can be performed in both soil and rock. However, the capacity also results in inherent limitations and uncertainties, such as the difficulty identifying the soil layer sequences of soft soils. READ MORE

  6. 25. Numerical analysis using simulations for a geothermal heat pump system. : Case study: modelling an energy efficient house

    University essay from Högskolan i Gävle/Energisystem

    Author : Gheorghe Ilisei; [2018]
    Keywords : Low enthalpy Geothermal Energy; Borehole Heat Exchanger; Ground Source Heat pump; Ground water; Design Builder; EED Earth Energy Designer ;

    Abstract : The ground source resources are becoming more and more popular and now the ground source heat pumps are frequently used for heating and cooling different types of buildings. This thesis aims at giving a contribution in the development of the thermal modelling of borehole heat storage systems. READ MORE