ExergyJet

ExergyJet performs second-law (exergy) analysis of turbojet and turbofan engines, station by station, entirely in the browser. Configure the cycle — inlet, compressor, burner, turbine, nozzle, optional afterburner, flight condition — and for every station you get T, P, h, mass flow and velocity. The second-law layer adds exergy destruction per component (Gouy–Stodola), second-law efficiency η_II alongside thermal/propulsive/overall efficiencies, a Sankey diagram of the fuel exergy budget, afterburner on/off comparison, and an engineering-grade PDF report. Built for propulsion engineers, researchers and aerospace students. The free tier runs the full turbojet workflow — no credit card required.