.Buildings.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.multipoleFmk

Information

This model evaluates the complex coefficient matrix F_mk from Claesson and Hellstrom (2011).

References

J. Claesson and G. Hellstrom. Multipole method to calculate borehole thermal resistances in a borehole heat exchanger. HVAC&R Research, 17(6): 895-911, 2011.

Interface

function multipoleFmk
  extends Modelica.Icons.Function;
  input Integer nPip "Number of pipes";
  input Integer J "Number of multipoles";
  input Real QPip_flow[nPip](each unit = "W/m") "Heat flow in pipes";
  input Real PRea[nPip, J] "Multipoles (Real part)";
  input Real PIma[nPip, J] "Multipoles (Imaginary part)";
  input Modelica.Units.SI.Radius rBor "Borehole radius";
  input Modelica.Units.SI.Radius rPip[nPip] "Outter radius of pipes";
  input Modelica.Units.SI.Position xPip[nPip] "x-Coordinates of pipes";
  input Modelica.Units.SI.Position yPip[nPip] "y-Coordinates of pipes";
  input Modelica.Units.SI.ThermalConductivity kFil "Thermal conductivity of grouting material";
  input Modelica.Units.SI.ThermalConductivity kSoi "Thermal conductivity of soil material";
  output Real FRea[nPip, J] "Multipole coefficients";
  output Real FIma[nPip, J] "Multipole coefficients";
end multipoleFmk;

Revisions

• February 12, 2018, by Massimo Cimmino:
  First implementation.