functionmultipoleThermalResistances
Thermal resistances from multipole solution
Extends from Modelica.Icons.Function (Icon for functions).
Information
This model evaluates the delta-circuit borehole thermal resistances using the multipole method of 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.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nPip | Number of pipes | |
| Integer | J | Number of multipoles | |
| Modelica.Units.SI.Position[nPip] | xPip | x-Coordinates of pipes | |
| Modelica.Units.SI.Position[nPip] | yPip | y-Coordinates of pipes | |
| Modelica.Units.SI.Radius | rBor | Borehole radius | |
| Modelica.Units.SI.Radius[nPip] | rPip | Outter radius of pipes | |
| Modelica.Units.SI.ThermalConductivity | kFil | Thermal conductivity of grouting material | |
| Modelica.Units.SI.ThermalConductivity | kSoi | Thermal conductivity of soil material | |
| Real[nPip] | RFluPip | Fluid to pipe wall thermal resistances | |
| Modelica.Units.SI.Temperature | TBor | 0 | Average borehole wall temperature |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real[nPip,nPip] | RDelta | Delta-circuit thermal resistances | |
| Real[nPip,nPip] | R | Internal thermal resistances |
Revisions
-
February 12, 2018, by Massimo Cimmino:
First implementation.