Ortiz Vega, D.
, Hall, K.
, Holste, J.
, Harvey, A.
and Lemmon, E.
(2023),
An Equation of State for the Thermodynamic Properties of Helium, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.8474, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956186
(Accessed April 26, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
An Equation of State for the Thermodynamic Properties of Helium
Published
Author(s)
Diego Ortiz Vega, Kenneth Hall, James Holste, ,
Abstract
This report documents the equation of state for fluid helium implemented in Version 10 of NIST's REFPROP Standard Reference Database. The equation of state is expressed as the molar Helmholtz energy as a function of temperature and density, and is valid for the normal fluid (helium I) up to 1500 K and 2000 MPa. Limited comparisons with experimental data and with virial coefficients calculated by ab initio methods are provided.Citation
NIST Interagency/Internal Report (NISTIR) - 8474
Report Number
8474
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
equation of state, helium, thermodynamic properties, virial coefficients
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created August 10, 2023, Updated November 6, 2023