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Thomas J. Bruno, Arno D. Laesecke, Stephanie L. Outcalt, Hans-Dieter Seelig, Beverly L. Smith
This report describes measurement efforts performed on the mixture of aviation fuels: Jet-A + S-8*. The primary mixture is a 50/50 (vol/vol) combination of the two fuels. Measurements include chemical analysis, density, viscosity, speed of sound and vapor
Allan H. Harvey, Akyl S. Tulegenov, Richard J. Wheatley, Matthew P. Hodges
We construct a rigid-body (five-dimensional) potential-energy surface for the water-nitrogen complex using the systematic intermolecular potential extrapolation routine (SIMPER). The intermolecular potential is then extrapolated to the limit of a complete
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Chris D. Muzny, Qian Dong, K N. Marsh, John H. Dymond, William A. Wakeham, Stephen E. Stein, Erich Koenigsberger, Anthony R. Goodwin, Joe W. Magee, Michiel Thijssen, William M. Haynes, Suphat Watanasiri, Marco Satyro, Martin Schmidt, Andrew I. Johns, Gary R. Hardin
Thermodynamic data often represent a key resource in the search for new relationships between properties of chemical systems that constitutes the basis of the scientific discovery process. In addition, thermodynamic information is critical for development
An apparatus for high-accuracy fluid p-ρ-T measurements over wide ranges of temperature, pressure, and density (90 to 520 K; 0 to 40 MPa; 5 to 1700 kg/m 3) is described. The densimeter is based on the Archimedes (buoyancy) principle and is a two-sinker
Keith A. Gillis, Iosif I. Shinder, Michael R. Moldover
We measured the resonance spectrum of an acoustic resonator filled with xenon near its critical temperature Tc. We reduced the effect of gravity on the xenon by convective stirring to achieve a temperature resolution of (T-Tc)/Tc 7 10-6. The data yield
In previous work, several significant improvements in the measurement of distillation curves for complex fluids were introduced. The modifications to the classical measurement provide for (1) temperature and volume measurement(s) of low uncertainty, and
The NIST research focuses on measurement of major thermophysical and chemical properties of JP-8, to develop it as a reference fluid. The properties include fluid volatility, density, speed of sound, viscosity and thermal conductivity. In addition, we are
This Hugh M. Huffman Memorial Award Lecture illustrates the power of phenomenological and statistical thermodynamics and the unique role of thermochemical data by a variety of studies in very diverse scientific and industrial fields ranging from
In previous work, several significant improvements in the measurement of distillation curves for complex fluids were introduced. The modifications to the classical measurement provide for (1) temperature and volume measurement(s) of low uncertainty, (2)
Qian Dong, Andrei F. Kazakov, Chris D. Muzny, Robert D. Chirico, Jason A. Widegren, Vladimir Diky, Joe W. Magee, Kenneth N. Marsh, Michael D. Frenkel
Ionic Liquids Database (ILThermo)is a free web research tool that allow users worldwide to access an up-to-data data collection from the publications on experimental studies of thermodynamic and transport properties of ionic liquids, as well as binary and
H J. Kretzschmar, J Cooper, A Dittmann, J Trubenbach, Th Willkommen, Daniel G. Friend, J S. Gallagher, Radim Mares, Kiyoshi Miyagawa, Wolfgang Wagner, K Knobloch, I. Stocker
In 2001, the International Association for the Properties of Water and Steam (IAPWS) adopted backward equations for pressure as a function of enthalpy and entropy p(h, s) as supplement to the IAPWS Industrial Formulation 1997 for the Termodynamic
Omololu Akin-Ojo, Allan H. Harvey, Krzysztof Szalewicz
We present our calculations of the cross second virial coefficient (B12) and of a related quantity, (phi)12 = B12 - TdB12/dT, for the methane?water system in the temperature range T = 200 - 1000 K. These calculations were performed using one of the ab
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Qian Dong, Kenneth N. Marsh, John H. Dymond, William A. Wakeham, Stephen E. Stein, Erich Koenigsberger, Anthony R. Goodwin
ThermoML is an XML-based emerging IUPAC standard for storage and exchange of experimental, predicted, and critically evaluated thermophysical and thermochemical property data. The basic principles, scope, and description of all structural elements of