SteamStateSolver

ALEXIS

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About this app

SteamStateSolver is an engineering calculator for determining thermodynamic properties from tabulated property data.

Select a fluid and thermodynamic region, enter two supported properties, and SteamStateSolver calculates the corresponding state and remaining properties automatically.

Key features:
Saturated, superheated, and subcooled property calculations
Two-property state solving
Automatic steam/refrigerant table lookup
Automatic single and double interpolation when required
Displays the calculation method used when applicable
Built-in unit conversion for both inputs and results
Support for multiple working fluids
Results for pressure, temperature, specific volume, density, internal energy, enthalpy, entropy, quality, and phase
Convenient property and unit selectors for engineering calculations

SteamStateSolver is designed to make traditional thermodynamic-property-table calculations faster while retaining the interpolation-based approach commonly used in engineering courses.

It can be useful for students, instructors, and engineers working with thermodynamics, energy systems, refrigeration, and related subjects.

SteamStateSolver is under active development, with additional fluids, visualization tools, and calculation features planned for future releases.

What’s new

• Added automatic thermodynamic region detection for saturated, superheated, and subcooled states.
• Removed the manual Region selector for a simpler workflow.
• Quality is now always available as an input property.
• Added a Clear button that resets inputs while keeping the selected fluid.
• Improved interpolation handling and out-of-range error messages.
• General UI and stability improvements.