modelSeriesConstantFlow
Extends from Buildings.DHC.Examples.Combined.BaseClasses.PartialSeries.
Information
This is a model of a so-called "reservoir network" (Sommer 2020), i.e., a fifth
generation district system with unidirectional mass flow rate in the
district loop, and energy transfer stations connected in series.
In this model, the temperature of the district loop is stabilized through
the operation of the plant and the borefield.
The main circulation pump has a constant mass flow rate.
Each substation takes water from the main district loop and feeds its return water back
into the main district loop downstream from the intake.
The pipes of the main loop are designed for a pressure drop of
dpDis_length_nominal=250 Pa/m at the design flow rate.
References
Sommer T., Sulzer M., Wetter M., Sotnikov A., Mennel S., Stettler C. The reservoir network: A new network topology for district heating and cooling. Energy, Volume 199, 15 May 2020, 117418.
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 | masFloMaiPum | Distribution pump mass flow rate | |
| 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 | |
| Networks.Distribution1Pipe_R | dis | Distribution network | |
| Modelica.Blocks.Sources.Constant | TSewWat | Sewage water temperature |
Revisions
-
December 12, 2023, by Ettore Zanetti:
Updated partial class, 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.