STuC Steam Turbine Calculator

STuC — Steam Turbine Calculator — calculates the expansion of saturated or superheated steam in a straight condensing or backpressure turbine using the IAPWS-IF97 steam tables. Built 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 • Exhaust wetness is highlighted below 90 % / 85 % steam content 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 • Precise numeric entry and full steam properties (h, s, v, quality, superheat) are available in STuC PRO UNITS • Pressure: bar absolute • Temperature: °C • Mass flow: kg/s • Power: kW • Efficiency: % • Volume flow: m³/s • Enthalpy drop: kJ/kg IMPORTANT This app is provided in good faith but without warranty of correctness or completeness. Always verify critical calculations with your own methods and professional judgment.