Nist Refprop 9

In the realm of engineering, thermodynamics, and chemical processing, accurate data is the bedrock of design and optimization. The National Institute of Standards and Technology (NIST) has long been the gold standard for providing such data. While newer versions exist, remains a highly trusted and foundational tool for researchers and engineers seeking high-accuracy thermophysical properties of fluids, particularly mixtures.

What do you plan to connect with REFPROP (e.g., Excel, Python, MATLAB)?

Unlike many academic calculators, REFPROP 9 was designed for integration. It includes:

: Predicting properties for low-temperature applications, such as the MIRI cooler for space telescopes. nist refprop 9

It is known for using the most accurate equations of state available.

is an open-source, free alternative that implements many of the same Helmholtz-based EOS models. However, key differences exist:

Released as a stable, mature version, REFPROP 9 represents the culmination of years of experimental data correlation. It supports over 147 pure fluids (depending on the specific sub-version) and allows users to calculate properties for mixtures containing up to 20 components. In the realm of engineering, thermodynamics, and chemical

(Reference Fluid Thermodynamic and Transport Properties Database) remains a foundational software tool for engineers, researchers, and scientists in fields requiring precise thermophysical properties. Developed by the National Institute of Standards and Technology (NIST) , REFPROP 9 offers comprehensive data for over 120 pure fluids and hundreds of mixtures, focusing on high-accuracy equations of state.

NIST REFPROP (Reference Fluid Thermodynamic and Transport Properties Database) is a standard reference tool developed and maintained by the U.S. National Institute of Standards and Technology (NIST). It was created to provide engineers and scientists with reliable, calculated property data, serving as an authoritative source for research, design, and analysis across various industries. The program is a commercial product, distributed through NIST's Standard Reference Data program, and is widely recognized for incorporating the most accurate property models available worldwide.

Computes density, enthalpy, entropy, viscosity, and thermal conductivity. What do you plan to connect with REFPROP (e

Includes over 120 pure fluids and more than 200 predefined mixtures.

The database includes over 100 pure fluids, categorized into critical industrial groups: