modelSewageHeatRecovery
Model for sewage heat recovery plant
Extends from Buildings.DHC.Plants.BaseClasses.PartialPlant.
Information
Model of sewage heat recovery plant with sewage mass flow rate and temperature as an input.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Efficiency | epsHex | Heat exchanger effectiveness | |
| Nominal conditions | |||
| Modelica.Units.SI.MassFlowRate | mSew_flow_nominal | Sewage water nominal mass flow rate | |
| Modelica.Units.SI.MassFlowRate | mDis_flow_nominal | District water nominal mass flow rate | |
| Modelica.Units.SI.PressureDifference | dpSew_nominal | Sewage side pressure drop at nominal mass flow rate | |
| Modelica.Units.SI.PressureDifference | dpDis_nominal | District side pressure drop at nominal mass flow rate | |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Controls.OBC.CDL.Interfaces.RealInput | TSewWat | Sewage water temperature | |
| Buildings.Controls.OBC.CDL.Interfaces.RealInput | mPum_flow | Pumps mass flow rate | |
| Buildings.Controls.OBC.CDL.Interfaces.RealOutput | dH_flow | Variation of enthalpy flow rate across HX (leaving - entering) | |
| Fluid.HeatExchangers.ConstantEffectiveness | hex | Heat exchanger (primary is sewage water side) | |
| Buildings.DHC.ETS.BaseClasses.Pump_m_flow | pumDis | District water pump | |
| Fluid.Sources.Boundary_pT | souSew | Source of sewage water | |
| Buildings.DHC.ETS.BaseClasses.Pump_m_flow | pumSew | Sewage water pump | |
| Fluid.Sensors.TemperatureTwoPort | senTSewOut | ||
| Buildings.DHC.Networks.BaseClasses.DifferenceEnthalpyFlowRate | senDifEntFlo | Variation of enthalpy flow rate | |
| Buildings.Controls.OBC.CDL.Reals.MultiSum | sumPPum | Sum pump power |
Revisions
-
November 17, 2025, by Michael Wetter:
Corrected typo in annotation.
This is for Buildings, #4406. -
January 16, 2020, by Michael Wetter:
First implementation.