ThermalOne

ThermalOne brings 54 engineering thermodynamics calculations into one native iPad and Mac app. Enter a state or process, inspect the result, and follow the formulas and assumptions without leaving the screen. WHAT IT COVERS States and properties - Water and steam state calculations - Ideal-gas properties and mixtures - Real-gas compressibility, cubic equations of state and departure functions - Thermodynamic relations and phase equilibrium Energy, entropy and exergy - Closed-system and control-volume energy balances - Nozzles, diffusers, turbines, compressors, pumps, heat exchangers and throttling - Reversible limits, entropy balances, isentropic efficiency and exergy analysis - Transient filling and emptying Power, refrigeration and design - Rankine, reheat, regenerative and combined cycles - Otto, Diesel, Dual, Brayton and turbojet cycles - Vapour-compression, heat-pump, gas, cascade and multistage refrigeration - Liquefaction, endoreversible power, thermal-radiation exergy and entropy-generation minimisation Moist air and reacting systems - Psychrometric states, air-conditioning processes and cooling towers - Combustion stoichiometry, product analysis and reacting energy balances - Adiabatic and equilibrium flame temperatures - Chemical exergy, fuel cells, chemical equilibrium and constant-volume combustion BUILT FOR EXPLORATION Use sliders where a meaningful exploration range is available. Results and diagrams update as inputs change. Every calculator shows its governing relation, units, assumptions and model limits. TAKE THE RESULT WITH YOU Export readings as CSV, copy tab-separated values into a spreadsheet, and export supported plots for reports or coursework. OFFLINE AND PRIVATE The calculations and both manuals are included in the app. No account is required. ThermalOne makes no network requests and collects no data. Requires iPadOS 17 or macOS 14.