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Chemistry

Thermochemical properties

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Displaying 476 - 500 of 781

ThermoData Engine (TDE) Version 5.0 (Pure compounds, Equations of State, Binary mixtures, and Chemical Reactions)

June 7, 2010
Author(s)
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Chris D. Muzny, Andrei F. Kazakov, Joe W. Magee, Ilmutdin M. Abdulagatov, Jeongwon Kang
ThermoData Engine (TDE) is the first and only full-scale software implementation of the dynamic data evaluation concept. The software provides critically evaluated thermochemical and thermophysical property values for pure compounds, binary mixtures, and

Surrogate Mixture Models for the Thermophysical Properties of Aviation Fuel Jet-A

May 27, 2010
Author(s)
Marcia L. Huber, Eric W. Lemmon, Thomas J. Bruno
We developed surrogate mixture models to represent the thermophysical properties of two samples of aviation turbine fuel Jet-A. One sample is a composite of numerous batches from a multiple manufacturers and is considered to be a representative fuel. A

Effect of Component Geometry on Flow Nonuniformities in a Large Pulse Tube Cryocooler

May 17, 2010
Author(s)
Michael A. Lewis, Ryan P. Taylor, Ray Radebaugh, Peter E. Bradley
A single-stage pulse tube cryocooler was designed to achieve 50 W of refrigeration power at 50 K when driven by a pressure oscillator that can produce up to 2.8 kW of acoustic power at 60 Hz. Initial experimental data produced no-load temperatures that

Critical Constants of Organic Compounds

May 16, 2010
Author(s)
Chris D. Muzny, Vladimir Diky, Andrei F. Kazakov, Robert D. Chirico, Michael D. Frenkel
The parameters of the liquid-gas critical point are important constants in determining the behavior of fluids. This table lists the critical temperature, pressure, and molar volume, as well as the normal boiling point, for over 850 organic substances. The

Development of Miniature, High Frequency Pulse Tube Cryocoolers

April 5, 2010
Author(s)
Ray Radebaugh, Isaac Garaway, Alexander Veprik
Because acoustic power density is proportional to frequency, the size of pulse tube cryocoolers for a given refrigeration power can be reduced by operating them at higher frequencies. A frequency of about 60 Hz had been considered the maximum frequency

NIST Gas Hydrate Research Database and Web Dissemination Channel

April 1, 2010
Author(s)
Kenneth G. Kroenlein, Vladimir Diky, Robert D. Chirico, Andrei F. Kazakov, Chris D. Muzny, Michael D. Frenkel
To facilitate advances in application of technologies pertaining to gas hydrates, a freely available data resource containing experimentally-derived information about those materials was developed. This work was performed by the Thermodynamic Research

Standard Reference Data for the Thermophysical Properties of Biofuels

March 25, 2010
Author(s)
Mark O. McLinden, Thomas J. Bruno, Michael D. Frenkel, Marcia L. Huber
The thermophysical properties of biofuels are required for the efficient design of every step in their production, distribution, and utilization. We provide an overview of properties research at the National Institute of Standards and Technology (NIST). We

Molecular Simulation Study of Anisotropic Wetting

March 10, 2010
Author(s)
Eric M. Grzelak, Vincent K. Shen, Jeffrey R. Errington
We study anisotropic wetting in systems governed by Lennard-Jones interactions. Molecular simulation is used to obtain the macroscopic contact angle a fluid adopts on face-centered-, body-centered-, and simple-cubic lattices with the (100), (110), or (111)

Ab initio kinetic coefficients of gaseous hydrogen

January 9, 2010
Author(s)
James B. Mehl, Marcia L. Huber, Allan H. Harvey
The spherical portion of the hydrogen intermolecular potential recently determined in ab initio calculations by Patkowski et al [J. Chem. Phys. 129:094304 (2008)] was used to calculate the viscosity and spherical contribution to the thermal conductivity of
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