modelElectricBoiler_L1_idContrQFlow_temp
Extends from TransiEnt.Basics.Icons.Model (Icon for models).
Information
1. Purpose of model
This model is an electric boiler which calculates the heat flow rate 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 efficiency is constant.
The heat flow rate is calculated based on the given mass flow rate at the ports and a given constant outlet temperature. There is no volume considered.
There are no pressure losses included.
The model calculates any heat flow rate that is necessary to reach the given temperature but no positive values (no cooling possible!).
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
fluidPortIn: inlet for fluid
fluidPortOut: outlet for fluid
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
The model is only working properly in design flow direction. Reverse flow is not supported!
8. Validation
(no validation necessary)
9. References
(none)
10. Version History
Model created by Carsten Bode (c.bode@tuhh.de), Dec 2018
Model modified by Jan Westphal (j.westphal@tuhh.de), Jul 2019 (added power port)
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Fundamental Definitions | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | medium | simCenter.fluid1 | Medium to be used |
| Boolean | use_varTemp | false | true if variable temperature input should be used |
| SI.Temperature | T_out_set_const | 46 + 273.15 | Constant outlet set temperature |
| Boolean | usePowerPort | true | True if power port shall be used |
| Technical Specifications | |||
| SI.HeatFlowRate | Q_flow_n | 3.5e3 | Nominal heat flow rate |
| Real | eta | 0.99 | Efficiency |
| Statistics | |||
| TransiEnt.Basics.Types.TypeOfResource | typeOfResource | TransiEnt.Basics.Types.TypeOfResource.Consumer | Select the kind of resource |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Thermal.FluidPortIn | fluidPortIn | ||
| TransiEnt.Basics.Interfaces.Thermal.FluidPortOut | fluidPortOut | ||
| TransiEnt.Basics.Interfaces.General.TemperatureIn | T_out_set | T_out_set_in | Setpoint value of the output temperature |
| Basics.Interfaces.Electrical.ActivePowerPort | epp |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter | ||
| TransiEnt.ModelStatistics | modelStatistics | ||
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_pT | fluidOut | ||
| TransiEnt.Components.Statistics.Collectors.LocalCollectors.CollectHeatingPower | collectHeatingPower | ||
| TransiEnt.Components.Statistics.Collectors.LocalCollectors.HeatingPlantCost | collectCosts_HeatProducer | ||
| TransiEnt.Components.Statistics.Collectors.LocalCollectors.CollectElectricPower | collectElectricPower | ||
| Modelica.Blocks.Sources.RealExpression | realExpression | ||
| TransiEnt.Components.Boundaries.Electrical.ActivePower.Power | powerBoundary | ||
| SI.Temperature | T_out_set_in | ||
| SI.HeatFlowRate | Q_flow | ||
| SI.Power | P_el | Consumed electric power |
Contents
| Name | Description |
|---|---|
 ProducerCosts |