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  • Re: Thermal transpor modelling - Helix loop vertical pipes

    Ciao Zeno,

    Yes, fully discretizing the helix loops would probably be the most accurate solution and it´s also what Wasy support suggests... A pity but I don´t have the budget for such a model. We´re testing if the temperature in-out results obtained from simulating "extra-big" coaxial pipes could be adapted but we didn´t get to any conclusions yet.

    What about you? Any further ideas on the subject?

    Good luck to you too!
  • Thermal transpor modelling - Helix loop vertical pipes

    Hello everyone!

    I´m currently dealing with a feflow model of a shallow geothermal system with helix loop vertical pipes. The goal is to estimate the efficiency of each pipe, depending on it´s relative location to other pipes and considering groundwater flow. I want to estimate the energy obtained from each pipe from the temperature difference in-out of the heat carrier fluid. Modelling with "BHE" would give me information about the temperature of the carrier fluid but, since it only allows me to use U-Pipes, I would loose a lot of thermal exchange surface per borhole meter. If I translate the expected thermal exchange in terms of lenght of the pipe (more leght of the borhole to obtain the same exchange surface), I would have an unreal groundwater flow influence.

    Did someone here ever consicer helix loop vertical pipes in a feflow model? How did you solve the problem?

    Thanks a lot!

    G.