NIST REFPROP 9.1 is a legacy version of the Reference Fluid Thermodynamic and Transport Properties Database, which has been officially superseded by Version 10. Obtaining REFPROP 9.1
Official Purchase: REFPROP is a paid resource. You can purchase the current version or inquire about legacy access through the official NIST REFPROP Website.
If you need REFPROP for your work, there are better (and safer) ways to get it than hunting for a sketchy download link:
If you’ve been typing "NIST REFPROP 91 download hot" into search engines lately, you aren’t alone. For mechanical engineers, chemical engineers, and HVAC specialists, REFPROP is the gold standard for thermodynamic property data.
Title: The Thermodynamic Foundation of Modern Living: Analyzing NIST REFPROP 9.1
Just do it legally, safely, and with a genuine love for the state of matter.
Support and Documentation: Look for user manuals, FAQs, and support contact information on the NIST website. These resources can be invaluable if you encounter issues during or after the download and installation process.
Treat pursuing NIST REFPROP as you would a hobby: learn the underlying physics (Carnot cycle, enthalpy of vaporization) before chasing the software. The real entertainment is in the understanding, not just the icon on your desktop.
REFPROP (REFerence fluid PROPerties) is a computer program developed by the National Institute of Standards and Technology (NIST) that provides the industry’s most accurate thermophysical property data for industrially important fluids and their mixtures.