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What’s New Version 4.19.0
- Entropy balance
- Internal generated entropy
- External generated entropy
- Universe entropy increment
- Irreversibility (Destroyed exergy)
Description
- 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.
- 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.
- Substances: Water, Noble gases, Ideal gases, Ideal gases (cp Variable), Custom gas.
Calculation wizards
- Interpolation: One dimension, Two dimensions.
- Units converter: Pressure, Temperature, Volume, Mass, Energy, Power.
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.
PREMIUM
Calculations
- Processes: Irreversible, Inlet+Outlet, Branches, Reheating, Subcooling.
- Substances: 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
- 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, 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
- Balances: Energy balance, Boundary work, Entropy balance, Internal generated entropy, External generated entropy, Universe entropy increment, Irreversibility (Destroyed exergy).
Exercises
- Open and save exercises.
Terms of use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula
In-App Purchases US pricing
Premium Student Subscription
Premiuum Student - 1 month · Monthly$1.99
Premium: Full access Subscription
Premium - 6 months · 6 months$9.99
Premium - 1 month · Monthly$3.99
Premium - 6 months · 6 months$4.99
Capabilities
In-App Purchases
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Version history 14 versions
Build 886781596v4.19.02026-06-11 20:51:07
- Entropy balance
- Internal generated entropy
- External generated entropy
- Universe entropy increment
- Irreversibility (Destroyed exergy)
Build 884248996v4.18.02026-04-10 22:51:46
- Substances: Acetone, Benzene, Ethanol, R-124, R-1234yf
- Cycles: Joule-Brayton with intercooling, Joule-Brayton with afterburner, Joule-Brayton with intercooling and afterburner
Build 882841528v4.13.02026-02-27 17:12:18
Custom efficiencies
Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
Build 882574364v4.12.02026-02-19 01:37:45
Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
Build 881233220v4.9.02026-01-07 16:36:38
Academic offer for student groups
Build 880926769v4.8.02025-12-23 03:28:27
- Minor changes
Build 880876172v4.7.02025-12-21 06:17:53
- Mass button: Display process properties per unit of mass
Build 880744176v4.6.02025-12-17 05:40:18
Open and save exercises
Isentropic efficiency
Generic exchanger
Warnings for sensitive calculations
Build 879789728v4.5.72025-11-26 01:59:12
Isentropic efficiency
Build 879754361v4.5.52025-11-14 01:36:06
- Cycles wizard: Automatic calculation of standard cycles.
- Heat exchangers wizard: Automatic calculation of heat exchangers.
Build 878735508v1.4.22025-10-17 09:01:49
- Minor changes
Build 878633024v1.3.02025-10-07 08:33:02
-Design improvements
Build 877724479v1.1.02025-09-01 14:49:08
Property editor and calculations.
Share data to other apps.
Tutorial.
Build 876970998v1.02025-08-15 18:07:13
Price history by region
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Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 1 | 5.0 | 4.19.0 |
Change log 18 changes · US
✎
releaseNotes updated
- Entropy balance
- Internal generated entropy
- External generated entropy
- Universe entropy increment
- Irreversibility (Destroyed exergy)
✎
description updated
- Thermodynamic calculator to solve problems and exercises from Thermodynamic Engineering books.
- Quickly calculates steam tables for water, air, ideal gases,
✎
subtitle updated
Thermodynamics calculator
✎
name updated
Thermonator Thermodynamics
◆
Version 4.19.0 released
- Entropy balance
- Internal generated entropy
- External generated entropy
- Universe entropy increment
- Irreversibility (Destroyed exergy)
◆
Version 4.18.0 released
- Substances: Acetone, Benzene, Ethanol, R-124, R-1234yf
- Cycles: Joule-Brayton with intercooling, Joule-Brayton with afterburner, Joule-Brayton with intercooling and afterburner
◆
Version 4.13.0 released
Custom efficiencies
Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
◆
Version 4.12.0 released
Regenerative efficiency
Explanation of efficiency calculation
Calculation of inlet and outlet areas
◆
Version 4.9.0 released
Academic offer for student groups
◆
Version 4.8.0 released
- Minor changes
◆
Version 4.7.0 released
- Mass button: Display process properties per unit of mass
◆
Version 4.6.0 released
Open and save exercises
Isentropic efficiency
Generic exchanger
Warnings for sensitive calculations
◆
Version 4.5.7 released
Isentropic efficiency
◆
Version 4.5.5 released
- Cycles wizard: Automatic calculation of standard cycles.
- Heat exchangers wizard: Automatic calculation of heat exchangers.
◆
Version 1.4.2 released
- Minor changes
◆
Version 1.3.0 released
-Design improvements
◆
Version 1.1.0 released
Property editor and calculations.
Share data to other apps.
Tutorial.
◆
Version 1.0 released