About Thermonator - Thermodynamics
- 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...
- 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
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Interactive graph.
Share results.
Educational aids
- Quick reminders on thermodynamic concepts and formulas.
- Step-by-step calculations.
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.
- Ambient conditions: 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+Outlet, 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
- Interpolation: One dimension, Two dimensions.
- Units converter: Pressure, Temperature, Volume, Mass, Energy, Power.
- Energy balance: Solve exercises of Unknown process, Internal friction, Kinetic energy, Potential energy, etc.
- Heat exchangers: Generic, Regenerative, Closed, Open, Mixed.
- Cycles: Automatically solve 17 types of cycles. Carnot, Otto, Diesel, Dual-Mixed, Stirling, Joule-Brayton (Basic, Regenerative, Intercooler, Afterburner), Power Rankine (Basic, Reheating), Rankine with regenerative preheating (Closed, Open, Closed+Closed, Closed+Open), Cooling Rankine (Vapor-compression refrigeration).
Results reports
- Substances: Formula, Molecular mass, Critical point, Normal boiling point, Specific heat.
- Summary: Settings, States, Processes, Cycles.
- Calculations: Step-by-step calculations.
- Mass balance.
- Energy balance.
- Boundary work.
- Entropy balance.
Previous Versions
Here you can find the changelog of Thermonator - Thermodynamics since it was posted on our website on 2016-12-26 17:14:17.
The latest version is 4.19.0 and it was updated on 2026-06-13 11:02:37. See below the changes in each version.
Thermonator - Thermodynamics version 4.19.0
Updated At: 2026-06-08
Changes: - Entropy balance
- Internal generated entropy
- External generated entropy
- Universe entropy increment
- Irreversibility (Destroyed exergy)
Thermonator - Thermodynamics version 4.18.0
Updated At: 2026-04-09
Changes: - Substances: Acetone, Benzene, Ethanol, R-124, R-1234yf
- Cycles: Joule-Brayton with intercooling, Joule-Brayton with afterburner, Joule-Brayton with intercooling and afterburner
Thermonator - Thermodynamics version 4.13.0
Updated At: 2026-02-24
Changes: Custom efficiencies
Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
Thermonator - Thermodynamics version 4.12.0
Updated At: 2026-02-18
Changes: Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
Thermonator - Thermodynamics version 4.10.0
Updated At: 2026-02-01
Changes: Open and save exercises
Isentropic performance
Generic exchanger
Warnings for sensitive calculations
Thermonator - Thermodynamics version 4.5
Updated At: 2025-05-29
Changes: New button "Restore" values in main window
New button "Resolve" in Heat exchanger window
New properties: Tf, Tg, RV
New window to calculate Saturation states
Improvements on the window of the Energy balance
Thermonator - Thermodynamics version 4.4
Updated At: 2025-03-10
Changes: New properties: Tf, Tg, RV
New window to calculate Saturation states
Improvements on the window of the Energy balance
Thermonator - Thermodynamics version 4.1
Updated At: 2023-05-20
Changes: New substances: R12, R32, SES36, R123, R134A, R404A, R407C, R410A, R507A
New window: Search Substance
New language: Arabic
Thermonator - Thermodynamics version 3.9
Updated At: 2022-01-13
Changes: New window: Configure a new exercise
New window: Energy balance
New properties: Kinetic energy, Potential energy, Dissipative work,
New welcome tutorial
Thermonator - Thermodynamics version 3.7
Updated At: 2021-11-27
Changes: New window: Energy balance
New properties: Kinetic energy, Potential energy, Dissipative work,
New welcome tutorial