Once a legitimate version of REFPROP 9.1 is deployed, it can be integrated across multiple platforms to automate engineering calculations: Microsoft Excel (GUI and Macros)
Direct download of the latest edition containing 147 pure fluids.
Calculates data across extensive temperature and pressure ranges, including liquid, vapor, and supercritical states. Why Version 9.1 Matters in 2026 nist refprop 91 download hot
Version 9.1, released in 2013, was a significant milestone that introduced a host of new features and improvements that established REFPROP's reputation for reliability and accuracy.
While upgrades are available, some users already own 9.1 licenses and find it perfectly sufficient for their current needs. Key Features of REFPROP 9.1 Once a legitimate version of REFPROP 9
: Version 10 maintains support for "old" routines from 9.1, allowing legacy Excel files to function without immediate code changes. Modern Support
For basic exploratory work, NIST sometimes provides limited interactive online tools or fluid property viewers through their webbook portals. Main Fluid Classes Covered in REFPROP 9.1 Fluid Class Common Application Refrigerants R134a, R410A, R32, CO2 (R744) HVAC systems, heat pumps, refrigeration Cryogens Liquid Nitrogen, Argon, Helium, Hydrogen Aerospace, medical imaging, superconducting Hydrocarbons Methane, Ethane, Propane, Butane Natural gas processing, petrochemical refining Common Solvents Water, Methanol, Ethanol, Acetone Chemical processing, power generation cycles Technical Integration: Getting the Most Out of the Software While upgrades are available, some users already own 9
: Before downloading, ensure that your computer meets the system requirements for the software. This information is usually provided on the same page as the download link.
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