packageAirCycle
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
Information
This example package illustrates, step by step, several configurations of an air-cycle refrigeration system based on the reverse Joule–Brayton cycle, as commonly used in aircraft Environmental Control Systems (ECS). The models are built using idealized state-change components, in particular Adiabatic and Isobaric processes. The cycle consists of four fundamental processes through which the working fluid (air) passes:
- Compression in a
compressor: adiabatic process with a specified isentropic efficiency - Heat rejection in a heat exchanger: isobaric cooling process
- Expansion in a
turbineto produce work: adiabatic process with a specified isentropic efficiency - Heat supply from the environment: isobaric heating process, artificially closing the thermodynamic loop
Contents
| Name | Description |
|---|---|
 Step1Turbine | |
| Step2Valve | |
| Step3RamAir | |
 Step4RamAirFlowInverse | |
| Step5Splitter | |
| Step6Junction | |
| Step7BootStrapCycle | |
| Step8BootStrapCycleFilter |
Revisions
-
2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
Initial version.