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Chemistry

Thermochemical properties

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Displaying 326 - 350 of 781

Recommended viscosities of 11 dilute gases at 25?degC

December 13, 2012
Author(s)
Robert F. Berg, Michael R. Moldover
Commercially manufactured meters that measure the flow of a process gas are often calibrated with a known flow of a surrogate gas. This requires an accurate model of the flow meter and accurate values of the relevant thermophysical properties for both

ThermoData Engine (TDE): Software Implementation of the Dynamic Data Evaluation Concept. 8. Properties of Material Streams and Solvent Design

December 3, 2012
Author(s)
Vladimir Diky, Robert D. Chirico, Chris D. Muzny, Andrei F. Kazakov, Kenneth G. Kroenlein, Joe W. Magee, Ilmutdin M. Abdulagatov, Carlos A. Diaz-Tovar, Jeong W. Kang, Rafiqul Gani, Michael D. Frenkel
ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported in this journal. The present paper describes the first application of this concept to the evaluation of thermophysical properties for

Possibilities, Limits, and Tradeoffs for Refrigerants in the Vapor Compression Cycle

October 29, 2012
Author(s)
Mark O. McLinden, Andrei F. Kazakov, J S. Brown, Piotr A. Domanski, Jae H. Heo
We explore the possibilities for refrigerants having low global warming potential (GWP) using two distinct, but complimentary, approaches. In the first approach, we evaluate the effect of a refrigerant’s fundamental thermodynamic parameters on its

Second Virial Coefficients of H2 and its Isotopologues from a Six-Dimensional Potential

October 17, 2012
Author(s)
Giovanni Garberoglio, Piotr Jankowski, Krzysztof Szalewicz, Allan H. Harvey
We employ path-integral Monte Carlo techniques to compute the second virial coefficient as a function of temperature for molecular hydrogen (H2), deuterium (D2), and tritium (T2), along with the mixed isotopologues HD, HT, and DT. The calculations utilize

Dieseline for Supercritical Injection and Combustion in Compression-Ignition Engines: Volatility, Phase Transitions, Spray/Jet Structure, and Thermal Stability

September 20, 2012
Author(s)
Thomas J. Bruno, George G. Anitescu, Lawrence L. Tavlarides
To optimize the injection-combustion process of increasingly diversified fuels, thermophysical and chemical properties of new blends are required over wide range of compositions and P-T conditions, including supercritical (SC) states. In this study, the

Dieseline for Supercritical Injection and Combustion in Compression-Ignition Engines: Volatility, Phase Transitions, Spray/Jet Structure, and Thermal Stability

September 20, 2012
Author(s)
George Anitescu, Thomas J. Bruno, Lawrence L. Tavlarides
To optimize the injection-combustion process of increasingly diversified fuels, thermophysical and chemical properties of new blends are required over wide range of compositions and P-T conditions, including supercritical (SC) states. In this study, the

Density and Speed of Sound Measurements of Four Bio-derived Fuels

September 13, 2012
Author(s)
Stephanie L. Outcalt, Tara J. Fortin
Compressed-liquid densities and ambient pressure densities and speeds of sound of four biomass-derived fuels have been measured. The compressed-liquid measurements were made from 270 K to 470 K, and 0.5 MPa to 50 MPa. The ambient pressure measurements were
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