modelBoiler
Simple boiler model
Extends from AixLib.Obsolete.BaseClasses.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).
Information
Overview
Boiler model without an internal controller.
Concept
The boilers parameterization is based on records from the DataBase library. In the range of minimal and nominal heat power a modulating operation is possible.
The control strategy is pretended from an external controller. There is an ON/OFF switch for the boiler and also a possibility to control the modulating operation, boilers capacity.
Both, actually and intigrated gas consumption can be taken from boilers outputs.
Example Results
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| FastHVAC.Media.BaseClasses.MediumSimple | medium | FastHVAC.Media.WaterSimple() | Standard fluid charastics (heat capacity, density, thermal conductivity) |
| General › Boiler type | |||
| AixLib.Obsolete.YearIndependent.FastHVAC.Data.Boiler.General.BoilerTwoPointBaseDataDefinition | paramBoiler | AixLib.Obsolete.YearIndependent.FastHVAC.Data.Boiler.General.Boiler_Vitogas200F_11kW() | Parameters for Boiler |
| General › Simulation | |||
| Modelica.Units.SI.Temperature | T_start | Modelica.Units.Conversions.from_degC(50) | Initial temperature of heat source |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | dotQ_rel | [0 to 1] | |
| Modelica.Blocks.Interfaces.RealOutput | dotE_gas | 1=gas consumption | |
| Modelica.Blocks.Interfaces.RealOutput | E_gas | 1=gas consumption | |
| FastHVAC.Interfaces.EnthalpyPort_a | enthalpyPort_a1 | Thermal port for input values (temperature, mass flow rate, specific enthalpy, constant specific heat capacity) | |
| FastHVAC.Interfaces.EnthalpyPort_b | enthalpyPort_b1 | Thermal port for output values (temperature, mass flow rate, specific enthalpy, constant specific heat capacity) | |
| Modelica.Blocks.Interfaces.BooleanInput | onOff_boiler |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow | heater | ||
| Modelica.Blocks.Tables.CombiTable1Dv | tableEfficiency | ||
| Modelica.Blocks.Math.Gain | dotQNormated | ||
| Modelica.Blocks.Continuous.Integrator | integrator | ||
| Modelica.Blocks.Math.Division | division | ||
| BaseClasses.WorkingFluid | boilerFluid | ||
| Modelica.Blocks.Logical.Switch | switch1 | ||
| Modelica.Blocks.Sources.RealExpression | realExpression | ||
| Modelica.Blocks.Math.Max | max | ensures the lower boundary of boilers capacity | |
| Modelica.Blocks.Sources.RealExpression | capMin | Minimal capacity of boiler |
Revisions
-
November 28, 2016 Tobias Blacha:
Moved into AixLib -
February 09, 2015 Konstantin Finkbeiner:
Implemented