modelHeatflow_L1_idContrMFlow_temp
Extends from Base.Heatflow_L1_idContr_temp_base (Base class for heat flow boundaries with ideal control to get a given outlet temperature).
Information
1. Purpose of model
This model is a heat flow boundary with a pump whose mass flow is ideally controlled to get a given outlet temperature. It can be chosen if the outlet set temperature is constant or given by an input.
2. Level of detail, physical effects considered, and physical insight
The mass flow is calculated based on a heat flow rate and a given constant outlet temperature. There is no volume considered.
There are no pressure losses included (pressures at inlet and outlet are given from the outside).
The model calculates any mass flow that is necessary to reach the given temperature but limits the mass flow so that no flow reversal occurs.
3. Limits of validity
This model is only valid for ideal controls, i.e. ideally tuned controls with no control errors.
4. Interfaces
T_out_set: set point for outlet temperature
Q_flow_set: set point heat flow rate (negative for producers)
fluidPortIn: inlet for fluid
fluidPortOut: outlet for fluid
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
(none)
8. Validation
(no validation necessary)
9. References
(none)
10. Version History
Model created by Carsten Bode (c.bode@tuhh.de), Nov 2018
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Fundamental Definitions | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | medium (from Heatflow_L1_idContr_temp_base) | simCenter.fluid1 | Medium to be used |
| Boolean | use_varTemp (from Heatflow_L1_idContr_temp_base) | false | true if variable temperature input should be used |
| SI.Temperature | T_out_set_const (from Heatflow_L1_idContr_temp_base) | 46 + 273.15 | Constant outlet set temperature |
| Statistics | |||
| TransiEnt.Basics.Types.TypeOfResource | typeOfResource (from Heatflow_L1_idContr_temp_base) | TransiEnt.Basics.Types.TypeOfResource.Consumer | Select the kind of resource |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Thermal.FluidPortIn | fluidPortIn (from Heatflow_L1_idContr_temp_base) | ||
| TransiEnt.Basics.Interfaces.Thermal.FluidPortOut | fluidPortOut (from Heatflow_L1_idContr_temp_base) | ||
| TransiEnt.Basics.Interfaces.General.TemperatureIn | T_out_set (from Heatflow_L1_idContr_temp_base) | T_out_set_in | Setpoint value of the output temperature |
| TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn | Q_flow_set | Setpoint value of the heat flow, should be negative |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter (from Heatflow_L1_idContr_temp_base) | ||
| TransiEnt.ModelStatistics | modelStatistics (from Heatflow_L1_idContr_temp_base) | ||
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_pT | fluidOut (from Heatflow_L1_idContr_temp_base) | ||
| TransiEnt.Components.Statistics.Collectors.LocalCollectors.CollectHeatingPower | collectHeatingPower (from Heatflow_L1_idContr_temp_base) | ||
| SI.Temperature | T_out_set_in (from Heatflow_L1_idContr_temp_base) | ||
| SI.HeatFlowRate | Q_flow (from Heatflow_L1_idContr_temp_base) |