Theory and Modeling of Fluids Group

Implementation of Pure Fluid and Natural Gas Standards: Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) — Major improvements have been made to the REFPROP program that impact how users incorporate new standards into their applications. A high impact standard, the GERG-2004 equation of state for natural … International Standards on the Properties of Water — Researchers in the Thermophysical Properties Division of CSTL played a leading role in the development of several new international standards for the properties of water. This work was performed … Microcryocooler for Terahertz Detectors — NIST and the University of Colorado have been funded since April, 2006, by DARPA to develop a microcryocooler with a volume less than about 4 cm3 to cool a terahertz detector to about 77 … Thermophysical Properties of Biofuels — The Thermophysical Properties Division has begun a program to develop thermophysical property data for the biofuels. Transportation fuels will undergo major changes in the coming years, and the …

• Documentation and Assessment of the Transport Property Models Implemented in NIST REFPROP (Version 8.0)
• Methane-water cross second virial coefficient with quantum corrections from an ab initio potential
• Correlation for the Viscosity of Pentafluoroethane (R125) from the Triple Point to 500 K at Pressures up to 60 MPa.