CoolProp is arguably the best free alternative to CATT3. It is an open-source database of fluid and humid air properties.
By following this guide, you can unlock the full potential of Computer-Aided Thermodynamic Tables 3 and take your thermodynamic analysis to the next level.
Computer-Aided Thermodynamic Tables 3 (CATT3) is a software tool primarily used by engineering students and professionals to calculate the thermodynamic properties of various substances like water, air, and refrigerants without manual interpolation. It is often bundled with engineering textbooks such as Fundamentals of Thermodynamics Overview of CATT3 computer aided thermodynamic tables 3 download free
CATT3 is the newer version with an improved interface and additional refrigerants. CATT2 is smaller and runs on older Windows versions.
If you absolutely need the real CATT3, buy a cheap used textbook. If you cannot afford that, embrace (for coders) or NIST Refprop online (for point-and-click). Both are free, legal, and powerful. CoolProp is arguably the best free alternative to CATT3
Several users have shared CATT3 on file‑hosting platforms:
To install CATT3, follow these steps:
: Limited versions or older releases may sometimes be found on the Internet Archive
For engineering students and professionals working with power cycles, refrigeration systems, or HVAC, CATT3 offers significant advantages: Computer-Aided Thermodynamic Tables 3 (CATT3) is a software
Using CATT3 to look up thermodynamic properties involves a few simple steps. Here is a practical example using water and steam: