Issue1080 ROM soil temperature and interzonal heat exchange #1546
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| within AixLib.BoundaryConditions.GroundTemperature; | ||
| type DataSource = enumeration( | ||
| Constant "Use constant value", | ||
| File "Use data from file with tabular data", | ||
| Kusuda "Use Kusuda model for undisturbed ground temperature with selectable parameters", | ||
| Sine "Use a sine model with selectable parameters") | ||
| "Enumeration to define data source for the ground temperature" | ||
| annotation(Documentation(info="<html> | ||
| <p> | ||
| Enumeration to define the data source used in AixLib.BoundaryConditions.GroundTemperature.Options. | ||
| </p> | ||
| </html>", | ||
| revisions="<html> | ||
| <ul> | ||
| <li> | ||
| April 21, 2023, by Philip Groesdonk:<br/> | ||
| First implementation. | ||
| </li> | ||
| </ul> | ||
| </html>")); |
|
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| within AixLib.BoundaryConditions.GroundTemperature; | ||
| model Options | ||
| "A model that provides different options for ground temperature output" | ||
| import Modelica.Constants.pi; | ||
|
|
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| parameter AixLib.BoundaryConditions.GroundTemperature.DataSource datSou=AixLib.BoundaryConditions.GroundTemperature.DataSource.Constant | ||
| "Choice by which option for ground temperature is to be provided" | ||
| annotation (Dialog(group="General")); | ||
| parameter Modelica.Units.SI.Temperature TMea "constant or mean ground temperature (for sine) or average air temperature over the year (for Kusuda)" | ||
| annotation (Dialog(group="General", enable=not datSou==AixLib.BoundaryConditions.GroundTemperature.DataSource.File)); | ||
| parameter Real offTime=0 | ||
| "Offset time from simulation time 0 until minimum ground temperature in s (for sine and Kusuda)" | ||
| annotation (Dialog(group="General", enable=datSou==AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda or datSou==AixLib.BoundaryConditions.GroundTemperature.DataSource.Sine)); | ||
| parameter Modelica.Units.SI.TemperatureDifference ampTGro=0 | ||
| "amplitude of ground temperature (for sine option) or of surface temperature [(maximum air temperature - minimum air temperature)/2] (for Kusuda)" | ||
| annotation (Dialog(group="General", enable=datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda | ||
| or datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Sine)); | ||
| parameter String filDatSou="NoName" | ||
| "path to a (.mos) file that has the temperature stored in a table called TGround" | ||
| annotation (Dialog(group="General", enable=datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.File)); | ||
| parameter Modelica.Units.SI.ThermalDiffusivity theDifKusPerDay=0.04 | ||
| "Thermal diffusivity of the ground for Kusuda. Declare in m2/day!" | ||
| annotation (Dialog(group="Special Kusuda parameters", enable=datSou == | ||
| AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda)); | ||
| parameter Modelica.Units.SI.Distance depTGroKus=0 | ||
| "Depth of ground temperature for Kusuda" | ||
| annotation (Dialog(group="Special Kusuda parameters", enable=datSou == | ||
| AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda)); | ||
|
|
||
| // add conditions | ||
| AixLib.BoundaryConditions.GroundTemperature.GroundTemperatureKusuda kusUnd( | ||
| T_mean=TMea, | ||
| T_amp=ampTGro, | ||
| D=depTGroKus, | ||
| alpha=theDifKusPerDay, | ||
| t_shift=offTime/86400.0) | ||
| if datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda | ||
| annotation (Placement(transformation(extent={{-10,50},{10,70}}))); | ||
| Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor TSenKus | ||
| if datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Kusuda | ||
| "Sensor to show Kusuda ground temperature" | ||
| annotation (Placement(transformation(extent={{22,50},{42,70}}))); | ||
| Modelica.Blocks.Interfaces.RealOutput TGroOut( | ||
| final quantity="ThermodynamicTemperature", | ||
| final unit="K", | ||
| displayUnit="degC") "Ground temperature" | ||
| annotation (Placement(transformation(extent={{100,-10},{120,10}}))); | ||
| Modelica.Blocks.Sources.Sine sin( | ||
| amplitude=ampTGro, | ||
| f=1.0/31536000.0, | ||
| phase=-offTime/31536000.0*2*pi - pi/2, | ||
| offset=TMea, | ||
| startTime=-31536000.0) | ||
| if datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Sine | ||
| "Source for sine function for temperature" | ||
| annotation (Placement(transformation(extent={{-10,-26},{10,-6}}))); | ||
| Modelica.Blocks.Sources.Constant TGroConSou(final k=TMea) if datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.Constant | ||
| "Constant ground temperature" | ||
| annotation (Placement(transformation(extent={{10,-10},{-10,10}}, rotation=180))); | ||
| Modelica.Blocks.Sources.CombiTimeTable tabTGro( | ||
| tableOnFile=true, | ||
| tableName="TGround", | ||
| extrapolation=Modelica.Blocks.Types.Extrapolation.Periodic, | ||
| fileName=filDatSou) | ||
| if datSou == AixLib.BoundaryConditions.GroundTemperature.DataSource.File | ||
| "Ground temperatures from table" | ||
| annotation (Placement(transformation(extent={{-10,-66},{10,-46}}))); | ||
|
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| equation | ||
| connect(kusUnd.port, TSenKus.port) annotation (Line(points={{9.4,55},{15.7,55}, | ||
| {15.7,60},{22,60}}, color={191,0,0})); | ||
| connect(TSenKus.T, TGroOut) annotation (Line(points={{43,60},{56,60},{56,0},{110, | ||
| 0}}, color={0,0,127})); | ||
| connect(TGroConSou.y, TGroOut) | ||
| annotation (Line(points={{11,0},{56,0},{56,0},{110,0}}, color={0,0,127})); | ||
| connect(sin.y, TGroOut) annotation (Line(points={{11,-16},{56,-16},{56,0},{110, | ||
| 0}}, color={0,0,127})); | ||
| connect(tabTGro.y[1], TGroOut) annotation (Line(points={{11,-56},{56,-56},{56, | ||
| 0},{110,0}}, color={0,0,127})); | ||
| annotation (Icon(coordinateSystem(preserveAspectRatio=false), graphics={ | ||
| Polygon( | ||
| points={{-100,20},{-46,14},{-10,20},{24,16},{60,18},{78,12},{100,20},{ | ||
| 100,-100},{-100,-100},{-100,20}}, | ||
| lineColor={0,0,0}, | ||
| fillColor={127,66,38}, | ||
| fillPattern=FillPattern.Solid), | ||
| Polygon( | ||
| points={{-100,20},{-100,32},{-42,22},{-4,30},{32,22},{66,24},{82,20},{ | ||
| 100,28},{100,20},{78,12},{60,18},{24,16},{-10,20},{-46,14},{-100,20}}, | ||
| lineColor={0,0,0}, | ||
| fillColor={0,140,72}, | ||
| fillPattern=FillPattern.Solid), | ||
| Polygon( | ||
| points={{-100,100},{100,100},{100,28},{82,20},{66,24},{32,22},{-4,30}, | ||
| {-42,22},{-100,32},{-100,100}}, | ||
| lineColor={0,0,0}, | ||
| fillColor={0,157,255}, | ||
| fillPattern=FillPattern.Solid), | ||
| Ellipse( | ||
| extent={{-70,84},{-40,54}}, | ||
| lineColor={0,0,0}, | ||
| fillColor={255,255,85}, | ||
| fillPattern=FillPattern.Solid), | ||
| Text( | ||
| extent={{-139,-104},{161,-144}}, | ||
| lineColor={0,0,255}, | ||
| textString="%name")}), Diagram( | ||
| coordinateSystem(preserveAspectRatio=false)), | ||
| Documentation(revisions="<html><ul> | ||
| <li>April 23, 2023, by Philip Groesdonk:<br/> | ||
| First implementation (see <a href= | ||
| \"https://github.com/RWTH-EBC/AixLib/issues/1080\">issue 1080</a>). | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| This model provides a block to choose from different options to model ground temperature: | ||
| <ul> | ||
| <li> | ||
| a constant value | ||
| </li> | ||
| <li> | ||
| a sine curve (yearly) | ||
| </li> | ||
| <li> | ||
| a table stored in a file | ||
| </li> | ||
| <li>a simple model (called Kusuda here) that was originally created for use with district heating grids or LTN in order to model | ||
| thermal pipe losses | ||
| </li> | ||
| </ul> | ||
| <h4> | ||
| Assumption and limitations | ||
| </h4> | ||
| <p> | ||
| The model does not model any influence on the ground temperature. | ||
| The ground temperature is only dependent on the set parameters. | ||
| </p> | ||
| <h4> | ||
| Typical use and important parameters | ||
| </h4> | ||
| <p> | ||
| The model is used as a boundary condition for ROM model floors outside surfaces. | ||
| </p> | ||
| <p> | ||
| <b>Differently then stated in the parameter description below for Kusuda, | ||
| α needs to be declared in m2/day! (The Modelica SI unit diffusivity does not | ||
| support m2/day as a display unit.)</b> | ||
| </p> | ||
| <p> | ||
| A typical value for α is bewteen 0.03 and 0.05 m2/day. | ||
| </p> | ||
|
|
||
| </html> | ||
| ")); | ||
| end Options; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,4 @@ | ||
| GroundTemperatureKusuda | ||
| Options | ||
| Examples | ||
| DataSource |
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I see that there is already a
DataSourceTypespackage underAixLib.BoundaryConditions.Typesbut this is from IBPSA library. This might be confusing. Could you please rename it toDataSourceGroTem?There was a problem hiding this comment.
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done