recordHeatpumpSystemProperties
Heat pump system scenario
Extends from TransiEnt.Basics.Icons.Record (Icon for records).
Information
1. Purpose of model
Record for heat pump system scenario
2. Level of detail, physical effects considered, and physical insight
(Purely technical component without physical modeling.)
3. Limits of validity
(Purely technical component without physical modeling.)
4.Interfaces
(no remarks)
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
(no remarks)
10. Version History
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.HeatFlowRate | Q_flow_n_heatpump | 5.4e3 | |
| SI.HeatFlowRate | Q_flow_n_peakunit | 5.4e3 | |
| SI.Volume | V_stor_dhw | 0.4 | |
| SI.Volume | V_stor_fh | 0.7 | |
| Real | COP_n_heatpump | 3.7 | COP at nominal conditions |
| Real | eta_peakunit | 0.98 | COP of peak unit |
| SI.Temperature | T_room_start | T_room_set | |
| SI.Temperature | T_stor_dhw_start | T_stor_dhw_set | |
| SI.Temperature | T_stor_fh_start | T_stor_fh_set | |
| TransiEnt.Basics.Types.DoubleSetpointControllerStatus | PLInitStatus | TransiEnt.Basics.Types.off | Used only, if peak load two point control model |
| TransiEnt.Basics.Types.OnOffRelaisStatus | HPInitStatus | TransiEnt.Basics.Types.on_ready | Used only if time relais model |
| SI.Temperature | T_room_set | 273.15 + 20 | |
| SI.Temperature | T_stor_dhw_set | 273.15 + 53 | |
| SI.Temperature | T_stor_fh_set | 273.15 + 35 | |
| SI.Temperature | T_bivalent | 273.15 - 8 | Temperature where bivalent system switches between peak and base load unit |
| SI.TemperatureDifference | DTdb_heatpump | 2 | Deadband of heatpump controller hysteresis |
| Real | T_ref_degC | -12 | |
| Real | T_feed_ref_degC | 33 | |
| Real | T_lim_degC | 19 | Heating limit in degC |
| Real | T_feed_lim_degC | 20 | |
| SI.Time | t_min_on_heatpump | 360 | Minimum uptime |
| SI.Time | t_min_off_heatpump | t_min_on_heatpump | Minimum downtime |
| Modelica.Units.SI.HeatCapacity | C_room | 3.97e7 | Heat capacity of storage (= cp*m) |
| Modelica.Units.SI.ThermalConductance | G_loss | 102 | Constant thermal conductance of material |
| TransiEnt.Basics.Types.HotWaterProfile | HowWaterDrawProfile | TransiEnt.Basics.Types.HotWaterProfile_threePersonBath |