modelTwoPipesConduit
Example model of a buried conduit housing a supply and return pipe
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example showcases the ground thermal coupling for a buried conduit that contains one insulated hot water supply pipe oscillating around 70°C and an uninsulated hot water return pipe oscillating around 50°C.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.BoundaryConditions.GroundTemperature.ClimaticConstants.Boston | cliCon | Surface temperature climatic conditions | |
| Modelica.Units.SI.Length | dCon | 0.3 | Conduit diameter |
| Modelica.Units.SI.Length | len | 1000 | Conduit length |
| Modelica.Units.SI.Length | xConWal | 0.01 | Conduit wall thickness |
| Buildings.HeatTransfer.Data.Soil.Generic | conMat | Conduit wall material (PVC) | |
| Buildings.HeatTransfer.Data.Soil.Generic | soiDat | Soil thermal properties |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| FixedResistances.PlugFlowPipe | pipSup | Buried pipe | |
| Buildings.Fluid.FixedResistances.BuriedPipes.GroundCoupling | gro | Ground coupling | |
| Modelica.Blocks.Sources.Sine | TinSup | Pipe inlet temperature signal | |
| Sources.MassFlowSource_T | souSup | Flow source | |
| Sensors.TemperatureTwoPort | senTemInlSup | Pipe inlet temperature sensor | |
| Sources.Boundary_pT | sinSup | Boundary condition | |
| Sensors.TemperatureTwoPort | senTemOutSup | Pipe outlet temperature sensor | |
| FixedResistances.PlugFlowPipe | pipRet | Buried pipe | |
| Sensors.TemperatureTwoPort | senTemOutRet | Pipe outlet temperature sensor | |
| Sensors.TemperatureTwoPort | senTemInlRet | Pipe outlet temperature sensor | |
| Sources.MassFlowSource_T | souRet | Flow source | |
| Sources.Boundary_pT | sinRet | Boundary condition | |
| Modelica.Thermal.HeatTransfer.Components.HeatCapacitor | conAir | Conduit air heat capacity | |
| Modelica.Blocks.Sources.Sine | TinRet | Pipe inlet temperature signal | |
| HeatTransfer.Conduction.SingleLayerCylinder | con | Conduit heat conduction |
Contents
| Name | Description |
|---|---|
 Medium | Medium in the pipe |
Revisions
-
December 7, 2023, by Ettore Zanetti:
MovedBuriedPipespackage
This is for issue 3431. -
September 14, 2021, by Michael Wetter:
Updated example for new pipe model. -
June 02, 2021, by Baptiste Ravache:
First implementation.