AIRExpander: Turbo Expander

AIRExpander calculates the expansion of dry standard air in turbo expanders: power, mass flow or isentropic efficiency, live with sliders. Built for engineering estimates, teaching and quick “what if” checks on the go. WHO IT’S FOR • Engineers in expander, compressed-air and plant engineering • Students and lecturers in thermodynamics and turbomachinery HOW IT WORKS • Set inlet pressure, inlet temperature and exhaust pressure with sliders • Use the calculate icon to choose what to solve for: 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 FEATURES • Slider input – 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 • English and German interface • In-app help and legal notice • No ads, no account UNITS • Pressure: bar absolute • Temperature: °C • Mass flow: kg/s • Power: kW • Efficiency: % • Volume flow: m³/s • Enthalpy drop: kJ/kg MORE WITH AIRExpander PRO The paid app AIRExpander Pro offers precise numeric entry, full state properties (enthalpy, entropy, specific volume) at inlet and exhaust, and copy and share functions for results – with the same dry-air thermodynamics. ACCURACY Developed by a project engineer with more than 15 years of experience in turbomachinery and thermodynamic cycles. Provided in good faith but without warranty of correctness or completeness. Always verify critical calculations with your own methods and professional judgment. Give AIRExpander a try on your next expander estimate. Feedback is welcome at [email protected].