modelConstantEfficiency
General model that describes a constant overall engine efficiency
Extends from PartialEngineEfficiency (Based model used by all models describing engine efficiencies).
Information
This model contains a simple calculation procedure for engine efficiency models (for more information, please check out AixLib.Fluid.Movers.Compressors.BaseClasses.PartialCompression). The model provides a constant overall engine efficiency and is the most basic engine efficiency model.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | useIseWor (from PartialEngineEfficiency) | false | = true, if isentropic work is used to compute compressor's power consumption |
| Modelica.Units.SI.Efficiency | etaEngCon | 0.9 | Constant overall engine efficiency |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Efficiency | epsRef (from PartialEfficiency) | Ratio of the real and the ideal displacement volume | |
| Modelica.Units.SI.Volume | VDis (from PartialEfficiency) | Displacement volume | |
| Real | piPre (from PartialEfficiency) | Ratio of compressor's outlet and inlet pressure | |
| Modelica.Units.SI.Frequency | rotSpe (from PartialEfficiency) | Compressor's current rotational speed | |
| Medium.ThermodynamicState | staInl (from PartialEfficiency) | Thermodynamic state at compressor's inlet | |
| Medium.ThermodynamicState | staOut (from PartialEfficiency) | Thermodynamic state at compressor's outlet | |
| Modelica.Units.SI.Temperature | TAmb (from PartialEfficiency) | Ambient temperature | |
| Modelica.Units.SI.Efficiency | etaEng (from PartialEngineEfficiency) | Overall engine efficiency |
Revisions
- October 20, 2017, by Mirko Engelpracht:
First implementation (see issue 467).