Lemmon, E.
, Huber, M.
and Leachman, J.
(2008),
Revised Standardized Equation for Hydrogen Gas Densities for Fuel Consumption Applications, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=832233
(Accessed December 14, 2024)
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Revised Standardized Equation for Hydrogen Gas Densities for Fuel Consumption Applications
Published
Author(s)
, , Jacob W. Leachman
Abstract
An equation for the density of hydrogen gas has been developed that agrees with the current standard to within 0.01 % from 220 to 1000 K with pressures up to 70 MPa, to within 0.01 % from 255 to 1000 K with pressures to 120 MPa, and to within 0.1 % for 200 to 1000 K up to 200 MPa. The equation is a truncated virial-type equation based on pressure and temperature dependent terms. The density uncertainty for this equation is the same as the current standard and is estimated as 0.04 % (combined uncertainty with a coverage factor of 2) between 250 and 450 K for all pressures, and 0.1 % for lower temperatures. Comparisons are presented with experimental data and with the full equation of state.Citation
Journal of Research (NIST JRES) -
Volume
113
Issue
6
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
density, equation of state, fuel consumption, hydrogen, pressure, temperature
Citation
Issues
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Created November 1, 2008, Updated June 2, 2021