Developed as a digital companion to popular textbooks like Fundamentals of Thermodynamics by Borgnakke and Sonntag, CATT3 provides accurate data for:
: Water (steam tables), air, various gases, refrigerants, and psychrometric mixtures.
All calculated values appear in a log at the bottom of the screen. You can export this log to Excel for further analysis or reporting.
is an essential software tool designed for engineering students and professionals to calculate thermodynamic properties without manually interpolating physical tables. What is CATT3? computer aided thermodynamic tables 3 download free
is a software utility designed for engineering students and professionals to determine the thermophysical properties of substances like water, ammonia, and various refrigerants. It replaces the need for manual interpolation in traditional printed property tables by providing rapid, accurate calculations of properties such as enthalpy, entropy, and specific volume based on user-defined states. Where to Download CATT3
If the software is too old for Windows 11 to recognize, you may need to use an emulator like DOSBox or set up a 32-bit Windows XP virtual machine using VirtualBox . Modern (and Better) Alternatives to CATT3
Locate CATT‑3.exe (or the appropriate executable) and double‑click to run it. If Windows displays a security warning, click "Run Anyway" only if you trust the source. Developed as a digital companion to popular textbooks
A free, open-source alternative to REFPROP. It integrates seamlessly with Python, MATLAB, Excel, and C++.
If you downloaded a .RAR file and cannot extract it, download 7-Zip (free, open-source) or WinRAR to extract the contents.
While CATT3 is commercial software often bundled with textbooks, several legitimate methods exist for students and educators to access it: is an essential software tool designed for engineering
For developers and engineers who need to integrate high-accuracy thermodynamics into their own software, is the premier open-source alternative to the industry standard, NIST REFPROP.
: Public archives sometimes host legacy versions, such as the Sonntag 6E CATT version available on the Internet Archive . Key Features
