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Physics

Thermodynamics

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Displaying 526 - 550 of 830

NIST/TRC SOURCE Data Archival System: the Next-Generation Data Model for Storage of Thermophysical Properties

January 2, 2012
Author(s)
Andrei F. Kazakov, Chris D. Muzny, Kenneth G. Kroenlein, Vladimir Diky, Robert D. Chirico, Joe W. Magee, Ilmutdin M. Abdulagatov, Michael D. Frenkel
A new data model for storage of experimental thermophysical and thermochemical property data was developed and implemented for NIST/TRC SOURCE data archival system. Substantial improvements in data quality as well as system usability and extendability are

New Equations for the Sublimation Pressure and Melting Pressure of H2O Ice Ih

December 17, 2011
Author(s)
Wolfgang Wagner, T Riethmann, Rainer Feistel, Allan H. Harvey
New reference equations, adopted by the International Association for the Properties of Water and Steam (IAPWS), are presented for the sublimation pressure and melting pressure of ice Ih as a function of temperature. These equations are based on input

ThermoData Engine (TDE) Version 6.0 (Pure Compounds, Binary Mixtures, Ternary Mixtures, and Chemical Reactions)

September 27, 2011
Author(s)
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Chris Muzny, Andrei F. Kazakov, Joe W. Magee, Ilmutdin M. Abdulagatov, Kenneth Kroenlein, Jeon-Hong Kang
ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept. In the present release, properties for ternary mixtures are calculated through combination of critically evaluated results for the constituent

Extension of ThermoML: The IUPAC Standard for Thermodynamic Data Communications (IUPAC Recommendations 2011)

September 7, 2011
Author(s)
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Paul L. Brown, John H. Dymond, Robert N. Goldberg, Anthony R. Goodwin, Heiko Heerklotz, Erich Koenigsberger, John E. Ladbury, Kenneth N. Marsh, David P. Remeta, Stephen E. Stein, William A. Wakeham, Peter A. Williams
ThermoML is an XML-based approach for storage and exchange of experimental, predicted, and critically evaluated thermophysical and thermochemical property data. Extensions to the ThermoML schema for the representation of speciation, complex equilibria, and

Improved First-Principles Calculation of the Third Virial Coefficient of Helium

August 31, 2011
Author(s)
Giovanni Garberoglio, Michael R. Moldover, Allan H. Harvey
We employ state-of-the-art pair and three-body potentials for helium to calculate its third density virial coefficient C(T) with uncertainties much smaller than those of the best experimental results, and approximately one-fourth the uncertainty of our

The sixth industrial fluid properties simulation challenge

July 28, 2011
Author(s)
F Case, Anne M. Chaka, Jonathan D. Moore, Raymond D. Mountain, Richard B. Ross, Vincent K. Shen, Eric A. Stahlberg
The sixth industrial fluid properties simulation challenge was held in 2010. The contestants were challenged to predict mutual solubility in liquid-liquid equilibria (LLE) for the PROGLYDE DMM + water system at various temperatures and atmospheric pressure

A New Method for Evaluation of UNIFAC Interaction Parameters

July 1, 2011
Author(s)
Jeongwon Kang, Vladimir Diky, Robert D. Chirico, Joe W. Magee, Chris Muzny, Ilmutdin M. Abdulagatov, Andrei F. Kazakov, Michael D. Frenkel
A new method for obtaining UNIFAC group-group interaction parameters is proposed using evaluated thermophysical property data generated at the Thermodynamics Research Center (TRC) of the National Institute of Standards and Technology (NIST). Using the

Density and Speed of Sound Measurements of Two Synthetic Aviation Turbine

June 29, 2011
Author(s)
Stephanie L. Outcalt, Tara J. Fortin
Rising prices and the uncertain supply of petroleum based aviation fuels have led to an interest in substitute fuels made from non-petroleum sources. Synthetic isoparaffinic kerosenes (S-IPK) are among the most promising alternatives. Two instruments were
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