scholarly journals Thermochemical Property Measurements of FLiNaK and FLiBe in FY 2020

2020 ◽  
Author(s):  
T. Lichtenstein ◽  
M. Rose ◽  
J. Krueger ◽  
E. Wu ◽  
M. Williamson

2006 ◽  
Vol 78 (3) ◽  
pp. 541-612 ◽  
Author(s):  
Michael Frenkel ◽  
Robert D. Chiroco ◽  
Vladimir Diky ◽  
Qian Dong ◽  
Kenneth N. Marsh ◽  
...  

ThermoML is an Extensible Markup Language (XML)-based new 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 ThermoML are discussed. ThermoML covers essentially all thermodynamic and transport property data (more than 120 properties) for pure compounds, multicomponent mixtures, and chemical reactions (including change-of-state and equilibrium reactions). Representations of all quantities related to the expression of uncertainty in ThermoML conform to the Guide to the Expression of Uncertainty in Measurement (GUM). The ThermoMLEquation schema for representation of fitted equations with ThermoML is also described and provided as supporting information together with specific formulations for several equations commonly used in the representation of thermodynamic and thermophysical properties. The role of ThermoML in global data communication processes is discussed. The text of a variety of data files (use cases) illustrating the ThermoML format for pure compounds, mixtures, and chemical reactions, as well as the complete ThermoML schema text, are provided as supporting information.





2019 ◽  
Vol 90 (1) ◽  
pp. 015109 ◽  
Author(s):  
Scott J. McCormack ◽  
Anthony Tamalonis ◽  
Richard J. K. Weber ◽  
Waltraud M. Kriven


2016 ◽  
Vol 120 (34) ◽  
pp. 19234-19241 ◽  
Author(s):  
Geun Ho Gu ◽  
Dionisios G. Vlachos


2013 ◽  
Vol 13 (4) ◽  
pp. 251-262 ◽  
Author(s):  
J. Muller ◽  
J.D. Steenkamp

AbstractThe modeling of thermochemical properties is important in studying the physical behavior of slag in the operation of pyrometallurgical smelters. To study the flow of slag through a submerged-arc furnace (SAF) tap-hole, knowledge of thermochemical properties such as viscosity, thermal conductivity, density and heat capacity are required. In literature various models exist for silicate slags that enable thermochemical properties to be predicted as functions of chemical composition and temperature. This paper reports on the application of models in the CaO-MnO-SiO2-Al2O3-MgO slag system to be used in future CFD modeling of slag tapped from SAFs producing high-carbon ferromanganese (HCFeMn) or silicomanganese (SiMn). FactSage 6.2 is used to estimate the phase composition of slags with varying chemical composition and temperature. The dependence of thermochemical property models on chemical composition and temperature is illustrated in the form of ternary diagrams showing the predicted property values as a function of basicity (chemical composition) and temperature. Slag compositions typical of HCFeMn and SiMn processes are used. Each thermochemical property is calculated at 1400, 1500 and 1600 °C at a fixed weight percentage ratio Al2O3/SiO2 of 0.57 and 6% MgO. Ternary phase diagrams (1400, 1500 and 1600 °C) and a ternary liquidus temperature diagram are also presented for the system. Since viscosity has the most significant influence on flow behavior, results from various viscosity models have been compared with measured data. Predictions for thermal conductivity, density, and heat capacity are also discussed.



2003 ◽  
Vol 48 (5) ◽  
pp. 1344-1359 ◽  
Author(s):  
Robert D. Chirico ◽  
Michael Frenkel ◽  
Vladimir V. Diky ◽  
Kenneth N. Marsh ◽  
Randolph C. Wilhoit




2012 ◽  
Vol 4 (5) ◽  
pp. 75-83 ◽  
Author(s):  
Juan-Sebastián Gómez-Meyer ◽  
Subramanyam R Gollahalli ◽  
Ramkumar N. Parthasarathy ◽  
Jabid-Eduardo Quiroga

In this article, the flame speed values determined experimentally for laminar premixed flames of the vapors of two biofuels in air are presented. The laminar flame speed is a fundamental thermochemical property of fuels, and is essential for analyzing the flame propagation in practical devices, even those employing turbulent flames. The fuels obtained from transesterification of soy and canola oils are tested. Also, the diesel flames are studied to serve as a baseline for comparison. The experiments are performed with a tubular burner; pre-vaporized fuel is mixed with hot air and is ignited. The flame speed is determined at fuel-equivalence ratios of 1; 1,1 and 1,2 by recording the geometry of the flame. The experimental results show that the flame speed of biofuels is lower by about 15% than that of diesel. Also, the maximum value of flame speed is obtained at an equivalence ratio of approximately 1,1.





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