Mixture properties are calculated using a model that applies mixing rules to the Helmholtz energy explicit equations of state for the individual components. REFPROP 9 employs departures functions to account for the non-ideal mixing behaviors of complex chemical combinations, significantly outperforming standard cubic equations of state (like Peng-Robinson) in precision. User Interface and Integration Options
This article is for informational purposes. NIST REFPROP is a copyrighted software product of the National Institute of Standards and Technology, U.S. Department of Commerce. Always ensure you have a valid license for the software version you use. nist refprop 9
Including HFCs, HFOs (hydrofluoroolefins), and natural refrigerants like CO2cap C cap O sub 2 and ammonia. Hydrocarbons: Methane, ethane, propane, butane, etc. Cryogens: Nitrogen, oxygen, hydrogen, and helium. 4. Software Interoperability Mixture properties are calculated using a model that
The is a cornerstone tool for engineers and scientists working in chemical engineering, refrigeration, power generation, and aerospace. REFPROP 9 represents a significant milestone in this software’s development, providing highly accurate thermophysical properties for a wide range of fluids and their mixtures. NIST REFPROP is a copyrighted software product of
: Supports calculations across liquid, gas, and supercritical phases, as well as subcooled and metastable regions. Fluid Support
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