modelPartialEngineEfficiency
Based model used by all models describing engine efficiencies
Extends from BaseClasses.PartialEfficiency.
Information
This is a base model for overall engine efficiency models that are
required for various compressor models. It defines some basic inputs
and outputs that are commonly used by efficiency models and these
inputs and outputs are summarised below:
| Type | Name | Comment |
|---|---|---|
| input |
epsRef
|
Ratio of the real and the ideal displacement volume |
| input |
VDis
|
Displacement volume |
| input |
piPre
|
Pressure ratio |
| input |
rotSpe
|
Rotational speed |
| input |
staInl
|
Thermodynamic state at compressor's inlet conditions |
| input |
staOut
|
Thermodynamic state at compressor's out conditions |
| input |
TAmb
|
Ambient temperature |
| output |
ηeng
|
Overall engine efficiency |
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | useIseWor | false | = true, if isentropic work is used to compute compressor's power consumption |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Efficiency | etaEng | Overall engine efficiency |
Revisions
- October 20, 2017, by Mirko Engelpracht:
First implementation (see issue 467).