modelRoomFloorHeating
Room model with floor heating system
Extends from TransiEnt.Basics.Icons.Model (Icon for models).
Information
1. Purpose of model
Room model with floor heating system.
2. Level of detail, physical effects considered, and physical insight
(no remarks)
3. Limits of validity
(no remarks)
4. Interfaces
waterIn: FluidPortÌn
waterOut: FluidPortOut
T_Amb if use_T_amb_input: input for temperature in [K]
T_room_act: output for temperature in [K]
5. Nomenclature
(no remarks)
6. Governing Equations
(no remarks)
7. Remarks for Usage
(no remarks)
8. Validation
(no remarks)
9. References
(no remarks)
10. Version History
Model created by Pascal Dubucq (dubucq@tuhh.de) on 01.10.2014
Quality check (Code conventions) by Rebekka Denninger on 01.10.2016
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | l | geometry.a*geometry.b/heatingsystem.distance_pipes | Length of the pipes of the heating floor |
| Modelica.Units.SI.Volume | V_floor | geometry.a*geometry.b*heatingsystem.h_floorFill - Modelica.Constants.pi*heatingsystem.d_pipe^2*l | Volume of floor material with a high temperature |
| Modelica.Units.SI.HeatCapacity | C_eff | 50*3600*geometry.V_room | DIN EN 12831 Appendix NA, p. 32 for medium buildingmass |
| Modelica.Units.SI.ThermalConductance | K_eff | (geometry.A_ext*thermodynamics.U_ext + geometry.A_roof*thermodynamics.U_roof) + 0.34*geometry.V_room*thermodynamics.n_min | DIN EN 12831 Appendix NA, p. 32 for medium buildingmass |
| Modelica.Units.SI.Time | tau_eff | C_eff/K_eff | apprximate building time constant |
| Base.RoomGeometry | geometry | Base.RoomGeometry() | |
| Base.ThermodynamicProperties | thermodynamics | Base.ThermodynamicProperties() | |
| Base.FloorHeatingSystem | heatingsystem | Base.FloorHeatingSystem() | |
| TILMedia.VLEFluidTypes.BaseVLEFluid | medium | simCenter.fluid1 | Medium in heating system |
| Boolean | use_T_amb_input | false | Use external input connector to set individual ambient temperatur |
| SI.HeatFlowRate | Q_flow_heating_n | 70*geometry.A_floor | |
| SI.TemperatureDifference | Delta_T_floorHeating_n | 9 |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Thermal.FluidPortIn | waterIn | ||
| TransiEnt.Basics.Interfaces.Thermal.FluidPortOut | waterOut | ||
| TransiEnt.Basics.Interfaces.General.TemperatureIn | T_Amb | Ambient Temperature | |
| TransiEnt.Basics.Interfaces.General.TemperatureOut | T_Room | Room Temperature |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter | ||
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_ph | waterInState | ||
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_pT | waterOutState | ||
| Modelica.Units.SI.HeatFlowRate | Q_flow_WaterIn | with ingoing massflow arriving power | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_WaterOut | with outgoing massflow leaving power | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_groundsurface_to_room | heat flow from the surface of tho floor to the room | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_externalWall_to_environement | heat flow from the wall to the environement | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_room_to_externalWall | heat flow from the room to the external wall | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_room_to_internalWall | heat flow from the room to the internal walls | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_loss_vent | lost heat flow due to minimal needed air exchange | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_intSources | heat flow due to internal heat sources | |
| Modelica.Units.SI.InternalEnergy | U_room | internal energy of the air in the room | |
| Modelica.Units.SI.InternalEnergy | U_floor | internal energy of the floor | |
| Modelica.Units.SI.InternalEnergy | U_extWall | internal energy of the external Walls | |
| Modelica.Units.SI.InternalEnergy | U_intWall | internal energy of the internal Walls | |
| Modelica.Units.SI.Heat | Q_needed | ||
| Modelica.Units.SI.HeatFlowRate | Q_flow_needed | ||
| Real | need_of_thermal_heat | Area specific need for heat | |
| Modelica.Units.SI.HeatFlowRate | Q_flow_heating | ||
| Modelica.Units.SI.Temperature | T_room | ||
| Modelica.Units.SI.Temperature | T_floor | ||
| Modelica.Units.SI.Temperature | T_waterOut | ||
| Modelica.Units.SI.Temperature | T_wallInside | ||
| Modelica.Units.SI.Temperature | T_wallOutside | ||
| Modelica.Units.SI.Temperature | T_wallInternal | ||
| Modelica.Units.SI.TemperatureDifference | Delta_T_floorHeating |