The International Association for the Properties of Water and Steam has recently adopted a new formulation for the thermodynamic properties of heavy water. This manuscript describes the development of a new formulation for the viscosity of heavy water that is consistent with the new equation of state and is valid for fluid states up to 775 K and 960 MPa with uncertainties ranging from 1% to 5% depending on the state point. Comparisons with experimental data and with a previous viscosity formulation are presented. The new formulation contains terms for the enhancement of viscosity in a small region near the critical point that were not included in previous formulations. The new formulation is applicable over a wider range of conditions than previous correlations.
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New International Formulation for the Viscosity of Heavy Water
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September 2021
Research Article|
July 08 2021
New International Formulation for the Viscosity of Heavy Water

Special Collection:
International Water Property Standards
M. J. Assael
;
M. J. Assael
1
Laboratory of Thermophysical Properties and Environmental Processes, Chemical Engineering Department, Aristotle University
, Thessaloniki 54636, Greece
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S. A. Monogenidou
;
S. A. Monogenidou
1
Laboratory of Thermophysical Properties and Environmental Processes, Chemical Engineering Department, Aristotle University
, Thessaloniki 54636, Greece
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M. L. Huber
;
M. L. Huber
a)
2
Applied Chemicals and Materials Division, NIST
, Boulder, Colorado 80305, USA
a)Author to whom correspondence should be addressed: marcia.huber@nist.gov
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R. A. Perkins
;
R. A. Perkins
2
Applied Chemicals and Materials Division, NIST
, Boulder, Colorado 80305, USA
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J. V. Sengers
J. V. Sengers
2
Applied Chemicals and Materials Division, NIST
, Boulder, Colorado 80305, USA
3
Institute for Physical Science and Technology, University of Maryland
, College Park, Maryland 20742, USA
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a)Author to whom correspondence should be addressed: marcia.huber@nist.gov
J. Phys. Chem. Ref. Data 50, 033102 (2021)
Article history
Received:
February 25 2021
Accepted:
June 03 2021
Connected Content
A companion article has been published:
New international formulation developed for determining the viscosity of heavy water
Citation
M. J. Assael, S. A. Monogenidou, M. L. Huber, R. A. Perkins, J. V. Sengers; New International Formulation for the Viscosity of Heavy Water. J. Phys. Chem. Ref. Data 1 September 2021; 50 (3): 033102. https://doi.org/10.1063/5.0048711
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