AIRExpander
Christian Peter Kaiser Tools
The simplest way of air expander calculation
- Downloads
- 43+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 10
- 2026 · v2.0
Screenshots
About AIRExpander
"AIRExpander" calculates the expansion of dry standard air for all kind of turbo expanders
You can easily edit the boundary conditions by the app sliders. For each calculation inlet pressure, inlet temperature and exhaust pressure are mandatory. One of the three parameters mass flow, efficiency or power can be calculated. You can switch between these three parameters.
The following sizes are additional calculated for inlet and exhaust: enthalpy, entropy, specific volume and volumetric flow.
You can easily edit the boundary conditions by the app sliders. For each calculation inlet pressure, inlet temperature and exhaust pressure are mandatory. One of the three parameters mass flow, efficiency or power can be calculated. You can switch between these three parameters.
The following sizes are additional calculated for inlet and exhaust: enthalpy, entropy, specific volume and volumetric flow.
What’s new
Version 2.0 · Updated August 10, 2026
AIRExpander 2.0 — modern refresh • New Material Design interface (light & dark) • Same dry-air expander calculation as before • Tap the calculate icon to solve for power, mass flow or efficiency • Live updates while you move the sliders
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