modelSeriesVariableFlow
Example of series connection with variable district water mass flow rate
Extends from Buildings.DHC.Examples.Combined.BaseClasses.PartialSeries.
Information
This model is identical to Buildings.DHC.Examples.Combined.SeriesConstantFlow except for the pipe diameter and the control of the main circulation pump. Rather than having a constant mass flow rate, the mass flow rate is varied based on the mixing temperatures after each agent. If these mixing temperatures are sufficiently far away from the minimum or maximum allowed loop temperature, then the mass flow rate is reduced to save pump energy.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| String[nBui] | filNam | {"modelica://Buildings/Resources/Data/DHC/Loads/Examples/SwissOffice_20190916.mos", "modelica://Buildings/Resources/Data/DHC/Loads/Examples/SwissResidential_20190916.mos", "modelica://Buildings/Resources/Data/DHC/Loads/Examples/SwissHospital_20190916.mos"} | Library paths of the files with thermal loads as time series |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Sources.Constant | masFloDisPla | District water flow rate to plant | |
| Buildings.Controls.OBC.CDL.Reals.Sources.Constant[nBui] | THotWatSupSet | Hot water supply temperature set point | |
| Buildings.Controls.OBC.CDL.Reals.Sources.Constant[nBui] | TColWat | Cold water temperature | |
| Buildings.DHC.Networks.Controls.MainPump1Pipe | conPum | Main pump controller | |
| Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter | gai | Scale with nominal mass flow rate | |
| Networks.Distribution1Pipe_R | dis | Distribution network | |
| Modelica.Blocks.Sources.Constant | TSewWat | Sewage water temperature |
Revisions
-
December 12, 2023, by Ettore Zanetti:
Changed to preconfigured pump model, This is for issue 3431. -
February 23, 2021, by Antoine Gautier:
Refactored with base classes from theDHCpackage.
This is for issue 1769. -
January 12, 2020, by Michael Wetter:
Added documentation.