AIRExpander

AIRExpander calculates the expansion of dry standard air for turbo expanders — for engineering estimates, teaching, and quick “what if” checks on the go.

HOW IT WORKS

• Set inlet pressure, inlet temperature and exhaust pressure with sliders

• Choose what to solve for with the calculate icon: power, mass flow or isentropic efficiency

• The other two operating quantities stay inputs; results update live as you drag

• See exhaust temperature, volumetric flows and enthalpy drops at a glance

DESIGNED FOR ENGINEERS

• Free tier: slider-based input only — fast interactive exploration

• Clear highlight of the calculated quantity

• Light and dark themes (system / light / dark)

• Landscape layout with inlet and exhaust side by side

• German and English interface

• In-app help and legal notice

UNITS

• Pressure: bar absolute

• Temperature: °C

• Mass flow: kg/s

• Power: kW

• Efficiency: %

• Volume flow: m³/s

• Enthalpy drop: kJ/kg