Data provided by National Institute of Standards and Technology
REFPROP is an acronym for REFerence fluid PROPerties. This program, developed by the National Institute of Standards and Technology (NIST), calculates the thermodynamic and transport properties of industrially important fluids and their mixtures. These properties can be displayed in Tables and Plots through the graphical user interface; they are also accessible through spreadsheets or user-written applications accessing the REFPROP dll. REFPROP is based on the most accurate pure fluid and mixture models currently available. It implements three models for the thermodynamic properties of pure fluids: equations of state explicit in Helmholtz energy, the modified Benedict-Webb-Rubin equation of state, and an extended corresponding states (ECS) model. Mixture calculations employ a model that applies mixing rules to the Helmholtz energy of the mixture components; it uses a departure function to account for the departure from ideal mixing. Viscosity and thermal conductivity are modeled with either fluid-specific correlations, an ECS method, or in some cases the friction theory method.
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Updated: 2026-09-19
Metadata Last Updated:
2018-06-05 00:00:00
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| Title | NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) Version 10 - SRD 23 |
|---|---|
| Description | REFPROP is an acronym for REFerence fluid PROPerties. This program, developed by the National Institute of Standards and Technology (NIST), calculates the thermodynamic and transport properties of industrially important fluids and their mixtures. These properties can be displayed in Tables and Plots through the graphical user interface; they are also accessible through spreadsheets or user-written applications accessing the REFPROP dll. REFPROP is based on the most accurate pure fluid and mixture models currently available. It implements three models for the thermodynamic properties of pure fluids: equations of state explicit in Helmholtz energy, the modified Benedict-Webb-Rubin equation of state, and an extended corresponding states (ECS) model. Mixture calculations employ a model that applies mixing rules to the Helmholtz energy of the mixture components; it uses a departure function to account for the departure from ideal mixing. Viscosity and thermal conductivity are modeled with either fluid-specific correlations, an ECS method, or in some cases the friction theory method. |
| Modified | 2018-06-05 00:00:00 |
| Publisher Name | National Institute of Standards and Technology |
| Contact | mailto:[email protected] |
| Keywords | AGA-8; CFCs; GERG ; Gruneisen; HCFCs; HFCs; HFOs; Joule-Thomson; acentric factors; air; alternative refrigerants; azeotropes; biodiesels; biofuels; boiling points; chemical potentials; chlorofluorocarbons; compressed natural gases; critical flow factors; cryogen; density; dielectric constant; equations of state; excess values; extended corresponding states; fatty acid methyl esters; fugacity coefficient; fuels; gases; greenhouse gases; gross heating values; heat capacity; hydrocarbons; hydrochlorofluorocarbons; hydrofluorocarbons; liquified natural gases; mixtures; natural gas; net heating values; hydrogen; phase equilibria; pseudo pure fluids; refrigerants; siloxanes; sound speed; specific heat; supercritical CO2; thermodynamic properties; thermophysical properties; thermal conductivity; water properties; vapor pressures; viscosity |
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"title": "NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) Version 10 - SRD 23",
"description": "REFPROP is an acronym for REFerence fluid PROPerties. This program, developed by the National Institute of Standards and Technology (NIST), calculates the thermodynamic and transport properties of industrially important fluids and their mixtures. These properties can be displayed in Tables and Plots through the graphical user interface; they are also accessible through spreadsheets or user-written applications accessing the REFPROP dll. REFPROP is based on the most accurate pure fluid and mixture models currently available. It implements three models for the thermodynamic properties of pure fluids: equations of state explicit in Helmholtz energy, the modified Benedict-Webb-Rubin equation of state, and an extended corresponding states (ECS) model. Mixture calculations employ a model that applies mixing rules to the Helmholtz energy of the mixture components; it uses a departure function to account for the departure from ideal mixing. Viscosity and thermal conductivity are modeled with either fluid-specific correlations, an ECS method, or in some cases the friction theory method.",
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