Sökning: "g-function"

Hittade 4 uppsatser innehållade ordet g-function.

  1. 1. Improvements on HCM Model for g-function Generation and Illustration of Fluid Temperature Prediction

    Master-uppsats, KTH/Energiteknik

    Författare :Anjan Rao Puttige; [2016]
    Nyckelord :;

    Sammanfattning : Ground coupled heat pump (GCHP) is a promising solution to the problem of efficient heating/cooling of residential and commercial buildings. Long term modelling of borehole heat exchanger (BHE) is necessary for better design and operation of GCHP. LÄS MER

  3. 2. Analysis of borehole heat exchanger in an existing ground-source heat pump installation

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Marc Derouet; [2014]
    Nyckelord :ground source heat pump; borehole heat exchanger; g-function; analytical solution; temperature prediction;

    Sammanfattning : Ground-source heat pumps systems (GSHP) are commonly used all over Sweden to supply heat and sometimes cool to different kinds of housings or commercial facilities. Many large installations are by now between 10 and 20 years old. LÄS MER

  4. 3. Temperaturzoner för lagring av värmeenergi i cirkulärt borrhålsfält

    Master-uppsats, KTH/Energiteknik

    Författare :Jens Penttilä; [2013]
    Nyckelord :g-function; bore hole; thermal energy storage; EED; Earth Energy Designer; FLS; Finite Line Source; COMSOL; borehole thermal energy storage; ground source heat pumps; borehole heat exchanger; g-funktion; geoeneri; borrhål; bergvärme; SEEC; COMSOL; EED; FLS; borrhålslager; Earth Energy Designer; berggrund;

    Sammanfattning : The thermal response of a borehole field is often described by non‐dimensional response factors called gfunctions.The g‐function was firstly generated as a numerical solution based on SBM (Superposition BoreholeModel). An analytical approach, the FLS (Finite Line Source), is also accepted for generating the g‐function. LÄS MER

  5. 4. Understanding numerically generated g-functions: A study case for a 6x6 borehole field

    Magister-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Jesus Angel Perez Gonzalez; [2013]
    Nyckelord :borehole; heat exchangers; g-function; ground source heat pumps;

    Sammanfattning : The Ground Source Heat Pump systems (GSHP) are an emerging technology used to exchange heat with the ground through the use of some buried heat exchangers. The thermal response of a borehole field can be characterized by its g-function. LÄS MER