- Thermodynamic calculator to solve problems and exercises from Thermodynamic Engineering books.
- Quickly calculates steam tables for water air ideal gases refrigerants and other substances.
- Contains help and explanations of the main theoretical concepts equations first and second thermodynamic laws etc.

FUNCTIONALITIES

No advertising.

Interactive graph.

Share results.

Educational aids
- Step-by-step calculations.
- Solved exercises.
- Quick reminders on thermodynamic concepts and formulas.

Settings
- Control system: Control mass Control volume.
- Sign convention: ΔU = Q − W ΔU = Q + W.
- Reference state: Normal boiling point ASHRAE IIR Çengel-Boles Moran-Shapiro Reynolds Sonntag-Van Wylen-Borgnakke.
- Dead state: EPA ISO IUPAC NIST.
- Units: International System of Units Imperial System of Units Traditional US units.

Calculations
- Properties: State Saturation Process Cycle.
- Calculation of states processes and cycles.
- Warnings for sensitive calculations: Critical point Saturation dome (PT) Liquid (v) Gas (Th).
- Processes: Polytropic Isobar Isotherm Isochore Isenthalpic Adiabatic Irreversible Inlet+Exit Branches Reheating Subcooling.
- Substances: Noble gases Ideal gases Ideal gases (cp Variable) Custom gas Real substances (Acetone Air Ammonia Benzene Butane Carbon dioxide Ethane Ethanol Ethylene Heptane Hexane Isobutane Isopentane Methane Nitrogen Octane Oxygen Pentane Propane Propanol Propylene R-11 R-114 R-12 R-123 R-1234yf R-124 R-13 R-134a R-14 R-22 R-23 R-32 R-404a R-407c R-410a R-500 R-502 R-507a R-C318 SES36 Water).

Calculation wizards
- Units converter: Pressure Temperature Volume Mass Energy Power.
- Interpolation: One dimension Two dimensions.
- Mass: Calculate the properties that depend on the mass.
- Saturation: Calculate the states of saturated liquid and saturated vapor.
- Energy balance: Solve exercises of Unknown process Internal friction Kinetic energy Potential energy etc.
- Entropy balance: Solve exercises of Internal generated entropy External generated entropy Universe entropy increment Destroyed exergy etc.
- Heat exchangers: Generic Closed Open Mixed.
- Cycles: Automatically solve 26 types of cycles. Basic cycles (1 Cycle) Combustion engines (5 Cycles) Gas turbine (5 Cycles) Combined cycle (1 Cycle) Steam turbine (2 Cycles) Steam turbine with regenerative preheating (4 Cycles) Vapor-compression refrigeration (6 Cycles) Gas refrigeration (2 Cycles).

Results reports
- Substances: Formula Molecular mass Critical point Normal boiling point Specific heat.
- Summary: Settings States Processes Cycles.
- Calculations: Step-by-step calculations.
- Balances: Mass balance.
- Balances: Energy balance Boundary work Entropy balance Internal generated entropy External generated entropy Universe entropy increment Destroyed exergy (Irreversibility).