modelInternalHEXTwoUTube
Comparison of the effective borehole thermal resistance from the thermal network of Bauer et al. with the resistance calculated by doubleUTubeResistances (ref)
Extends from Modelica.Icons.Example.
Information
This example simulates the interior thermal behavior of a double U-tube borehole segment.
Parameters
| Type | Name | Default | Description |
|---|
| Integer | nSeg | 10 | Number of segments to use in vertical discretization of the boreholes |
| Modelica.SIunits.Length | hSeg | borFieDat.conDat.hBor/nSeg | Length of the internal heat exchanger |
| IBPSA.Fluid.Geothermal.Borefields.Data.Borefield.Example | borFieDat | | Borefield data |
Components
| Type | Name | Default | Description |
|---|
| IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.InternalHEXTwoUTube | intHex | | |
| Modelica.Thermal.HeatTransfer.Sources.FixedTemperature | fixedTemperature | | |
| IBPSA.Fluid.Sources.MassFlowSource_T | boundary | | |
| IBPSA.Fluid.Sources.MassFlowSource_T | boundary1 | | |
| IBPSA.Fluid.Sources.FixedBoundary | bou | | |
| Real | Rb_sim | ((senTem.T + senTem1.T + senTem2.T + senTem3.T)/4 - intHex.port_wall.T)/max(-intHex.port_wall.Q_flow/hSeg, 1) | |
| IBPSA.Fluid.Sensors.TemperatureTwoPort | senTem | | |
| IBPSA.Fluid.Sensors.TemperatureTwoPort | senTem1 | | |
| Modelica.Blocks.Sources.RealExpression | realExpression | | |
| Modelica.Blocks.Sources.Constant | Rb_ref | | |
| Modelica.Blocks.Math.Add | error | | |
| IBPSA.Fluid.Sensors.TemperatureTwoPort | senTem2 | | |
| IBPSA.Fluid.Sensors.TemperatureTwoPort | senTem3 | | |
Revisions
-
June 2018, by Damien Picard:
First implementation.