The software handles pure fluids and complex multi-component mixtures. This makes it indispensable for chemical processing, refrigeration design, and aerospace engineering. Core Capabilities and Supported Fluids
The software includes a vast library of pure fluids and mixtures. Users can define custom mixtures, allowing for the simulation of complex, real-world working fluids. 3. Comprehensive Property Suite It calculates a wide array of properties, including:
While cubic equations are computationally fast and still useful for early-stage process screening, they lack precision near the critical point and fail to accurately predict transport properties like viscosity. REFPROP 9 bridges this gap by offering scientific-grade precision across all fluid phases, directly reducing safety margins and material costs in final equipment designs. nist refprop 9
NIST REFPROP 9: A Definitive Guide to Thermodynamic Property Modeling
Liquid hydrogen and liquid oxygen propellants require cryogenic property data. REFPROP 9 includes the most recent EOS for ortho-para hydrogen mixtures, which is vital for long-term fuel storage in space missions. The software handles pure fluids and complex multi-component
Simulating power plant performance by modeling the working fluid's behavior across different temperatures.
Engineers and researchers use this tool to design chemical plants, refrigerants, and power cycles. Version 9 structurally modernised the platform by adding multi-core processing, 64-bit architecture compatibility, and expanded fluid libraries. Core Technical Architecture Users can define custom mixtures, allowing for the
: Implements high-accuracy Helmholtz energy equations, the GERG-2008 model for natural gas, and the AGA8 equation. Fluid and Mixture Library
Computes density, enthalpy, entropy, viscosity, and thermal conductivity.