modelGasolineEngineChp
Thermal and mechanical model of an internal combustion engine with consideration of the individual mass flows
Information
Model of a combustion engine combined from the thermal and mechanical engine model. #
Together with the submodels cooling circuit, exhaust gas heat exchanger and electric motor, it can be connected to form the power unit of a combined heat and power unit.
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April, 2019 by Julian Matthes:
First implementation (see issue #667)
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Unit properties | |||
| DataBase.CHP.ModularCHPEngineData.CHPEngDataBaseRecord | CHPEngineModel | AixLib.DataBase.CHP.ModularCHPEngineData.CHP_ECPowerXRGI15() | CHP engine data for calculations |
| Data.ModularCHP.EngineMaterialData | EngMat | AixLib.Fluid.BoilerCHP.Data.ModularCHP.EngineMaterial_CastIron() | Thermal engine material data for calculations |
| Ambient Parameters | |||
| Modelica.Units.SI.Temperature | T_amb | 298.15 | Default ambient temperature |
| Engine Cooling Circle | |||
| Modelica.Units.SI.Mass | mEng | CHPEngineModel.mEng | Total engine mass for heat capacity calculation |
| Modelica.Units.SI.Thickness | dInn | 0.005 | Typical value for the thickness of the cylinder wall (between combustion chamber and cooling circle) |
| Modelica.Units.SI.ThermalConductance | GEngToAmb | 0.23 | Thermal conductance from engine housing to the surrounding air |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Mechanics.Rotational.Interfaces.Flange_a | flange_eng | Mechanical port of the engines output drive | |
| Modelica.Fluid.Interfaces.FluidPort_b | port_exh | Fluid port of the exhaust gas comming from the combustion engine | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_amb | Heat port to ambient | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_cooCir | Heat port to cooling circuit | |
| AixLib.Controls.Interfaces.CHPControlBus | cHPEngBus | Signal bus of the combustion engine model |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| AixLib.Fluid.BoilerCHP.ModularCHP.BaseClasses.BaseClassComponents.GasolineEngineChp_EngineModel | cHPCombustionEngine | Mean value combustion engine model with mechanical and fluid ports | |
| AixLib.Fluid.BoilerCHP.ModularCHP.BaseClasses.BaseClassComponents.GasolineEngineChp_EngineHousing | engineToCoolant | A physikal model for calculating the thermal, mass and mechanical output of an ice powered CHP |
Contents
| Name | Description |
|---|---|
 Medium_Fuel | |
| Medium_Air | |
| Medium_Exhaust |