modelPartialInternalResistances
Partial model to implement borehole segment internal resistance models
Information
Partial model to implement the inner resistance network of a borehole segment.
The partial model uses a thermal port representing a uniform borehole wall for that segment, and at least two other thermal ports (one for each tube going through the borehole segment).
Note that the model is same as Buildings.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.PartialInternalResistances, except that different borefield data record is used.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | hSeg | Length of the internal heat exchanger | |
| Modelica.Units.SI.Temperature | T_start | Initial temperature of the filling material | |
| Buildings.Fluid.Geothermal.Borefields.TOUGH.Data.Borefield.Template | borFieDat | Borefield data | |
| Modelica.Units.SI.ThermalResistance | Rgb_val | Thermal resistance between grout zone and borehole wall | |
| Modelica.Units.SI.ThermalResistance | RCondGro_val | Thermal resistance between: pipe wall to capacity in grout | |
| Dynamics › Conservation equations | |||
| Modelica.Fluid.Types.Dynamics | energyDynamics | Modelica.Fluid.Types.Dynamics.DynamicFreeInitial | Type of energy balance: dynamic (3 initialization options) or steady state |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_1 | Thermal connection for pipe 1 | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_wall | Thermal connection for pipe 2 | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_2 | Thermal connection for borehole wall |
Revisions
-
June 22, 2026, by Jianjun Hu:
First implementation.