modelStep4StagedWith2Shafts
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
In a forth step energy flows are included representing power transfer via mechanical connections. The high pressure turbine drives the high pressure compressor. The low pressure turbine drives the low pressure compressor and provides power.
For information on the energy flow connector, see UsersGuide.EnergyFlow.
This setup creates one implicit nonlinear equation (the outlet pressure of highPressureTurbine has to be calculated from the mass flow rate and the power required for the highPressureCompressor).
Suitable start values are required to solve the implicit nonlinear equation.
Further documentation is available in the JouleBrayton package.
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ThermofluidStream.DropOfCommons | dropOfCommons | ||
| Processes.Adiabatic | lowPressureCompressor | ||
| Processes.Adiabatic | highPressureTurbine | ||
| ThermofluidStream.Boundaries.Source | airSource | ||
| Processes.Isobaric | firstCombustion | ||
| Modelica.Blocks.Sources.Ramp | outletPressure | ||
| ThermofluidStream.HeatExchangers.CounterFlowNTU | recuperator | ||
| .ThermofluidStream.Boundaries.Sink_m | airSink | ||
| Processes.Isobaric | cooler | ||
| Processes.Adiabatic | highPressureCompressor | ||
| Processes.Isobaric | secondCombustion | ||
| Processes.Adiabatic | lowPressureTurbine | ||
| EnergyFlow.Components.Sum | generatorPower | ||
| ThermofluidStream.Utilities.showRealValue | efficiency |
Contents
| Name | Description |
|---|---|
 Medium |
Revisions
-
2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
Initial version.