If you require the full capabilities of the software, you must purchase a license:
import CoolProp.CoolProp as CP # Calculate Enthalpy (H) in J/kg enthalpy = CP.PropsSI('H', 'T', 300, 'P', 101325, 'R134a') print(f"Enthalpy: enthalpy J/kg") Use code with caution. Excel Integration
The "free" versions found on the internet often fall into two categories: refprop 91 free
If the cost of REFPROP is a barrier, consider:
Here is a comprehensive guide to understanding what REFPROP 9.1 is, why it is rarely available for free, and the legitimate ways you can access its data without breaking the bank. What is REFPROP 9.1? If you require the full capabilities of the
If you cannot afford a RefProp license, there are powerful, open-source alternatives that offer similar accuracy for common fluids. ⚙️ CoolProp (Recommended) CoolProp is the best free alternative to RefProp. Completely free for all users.
This article is for educational and informational purposes only. NIST REFPROP is a copyrighted, proprietary software. This guide does not provide cracked software, license keys, or links to pirated content. It is intended to help you find legitimate, free alternatives and understand the legal risks associated with "free" downloads. If you cannot afford a RefProp license, there
: Released in 2013, this version introduced a 64-bit DLL and expanded the database to 121 pure fluids. It replaced older NIST 12 and 14 databases and is widely used for interfacing with Excel, Python, and MATLAB.
: Features 121 pure fluids, 5 pseudo-pure fluids (like air), and complex mixtures with up to 20 distinct components.
CoolProp is a free, open-source thermodynamic property library written in C++ that matches REFPROP’s performance for most common engineering applications.