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18 results for “Thermophysical properties”
Thermophysical properties for the published article "Experiments and modelling on ASDEX Upgrade and WEST in support of tool development for tokamak reactor armour melting assessments"
<p>In order to model the macroscopic metallic melt motion realized in the poor-versus-efficient thermionic emitter leading edge exposures in the ASDEX-Upgrade outer divertor [1], the material library of the MEMENTO melt dynamics code, that previously only concerned tungsten [2] and beryllium [3], had to be extended to iridium and niobium. </p> <p>Reliable experimental data have been analyzed for the latent heats, specific isobaric heat capacity, electrical resistivity, thermal conductivity, mass density, vapor pressure, work function, total hemispherical emissivity and absolute thermoelectric power from the room temperature up to the normal boiling point of iridium and niobium as well as for the surface tension and the dynamic viscosity across the liquid state. Analytical expressions are recommended for the temperature dependence of these thermophysical properties, which involve high temperature extrapolations given the absence of extended liquid iridium and liquid niobium measurements. The analytical expressions, the details of their construction and the main references are included in the accompanying pdf.</p> <p>[1] S. Ratynskaia, K. Paschalidis, P. Tolias, K. Krieger, Y. Corre, M. Balden, M. Faitsch, A. Grosjean, Q. Tichit, R.A. Pitts, the ASDEX-Upgrade team, the WEST team and the Eurofusion MST1 team, "Experiments and modelling on ASDEX Upgrade and WEST in support of tool development for tokamak reactor armour melting assessments", Nucl. Mater. Energy 33 (2022) 101303.<br> [2] P. Tolias, "Analytical expressions for thermophysical properties of solid and liquid tungsten relevant for fusion applications", Nucl. Mater. Energy 13 (2017) 42.<br> [3] P. Tolias, "Analytical expressions for thermophysical properties of solid and liquid beryllium relevant for fusion applications", Nucl. Mater. Energy 31 (2022) 101195.</p>
Analytical expressions for thermophysical properties of solid and liquid aluminum relevant for fusion applications
<p>Aluminum is being actively employed by the fusion community as a non-toxic chemical proxy to beryllium, since both materials form covalent hydrides, high-melting oxides as well as alloys with tungsten [1]. Characteristic examples include studies of in situ cleaning of diagnostic first mirrors [2,3], investigations of hydrogen retention or deposited layer formation [4,5] and experiments dedicated to sputtered material transport in diagnostic ducts [6]. Aluminum has also served as a surrogate for beryllium in high heat flux tests, given its low melting point and low mass density. Characteristic examples concern experiments on the interaction of adhered Al dust with transient and stationary plasmas carried out in Magnum-PSI [7] and the controlled melting of Al blocks exposed in the DIII-D divertor under steady L-mode discharge conditions using the DiMES manipulator [8]. In order to reliably model the macroscopic metallic melt motion realized in the sloped geometry Al L-mode exposures in the DIII-D divertor, the material library of the MEMENTO melt dynamics code, that previously concerned tungsten [9], beryllium [10], niobium [11,12] and iridium [11,12], has to be extended to aluminum.</p> <p>Reliable experimental data have been analyzed for the specific isobaric heat capacity, electrical resistivity, thermal conductivity, mass density, vapor pressure, latent heat of fusion, enthalpy of vaporization, work function, total hemispherical emissivity and absolute thermoelectric power from the room temperature up to the normal boiling point of aluminum as well as for the surface tension and the dynamic viscosity across the liquid state. Analytical expressions are recommended for the temperature dependence of these thermophysical properties, which involve high temperature extrapolations given the absence of extended liquid aluminum measurements. The analytical expressions, the details of their construction and the main references are included in the accompanying pdf.</p> <p>[1] L. Marot, C. Linsmeier, B. Eren, L. Moser, R. Steiner and E. Meyer, "Can aluminium or magnesium be a surrogate for beryllium: A critical investigation of their chemistry", Fus. Eng. Des. 88 (2013) 1718.<br> [2] A. Maffini, L. Moser, L. Marot, R. Steiner, D. Dellasega, A. Uccello, E. Meyer and M. Passoni, "In situ cleaning of diagnostic first mirrors: an experimental comparison between plasma and laser cleaning in ITER-relevant conditions", Nucl. Fusion 57 (2017) 046014.<br> [3] A. Litnovsky, V. S. Voitsenya, R. Reichle et al., "Diagnostic mirrors for ITER: research in the frame of International Tokamak Physics Activity", Nucl. Fusion 59 (2019) 066029.<br> [4] A. Kreter, T. Dittmar, D. Nishijima, R. P. Doerner, M. J. Baldwin and K. Schmid, "Erosion, formation of deposited layers and fuel retention for beryllium under the influence of plasma impurities" Phys. Scr. T159 (2014) 014039.<br> [5] C. Quirós, J. Mougenot, G. Lombardi, M. Redolfi, O. Brinza, Y. Charles, A. Michau and K. Hassouni, "Blister formation and hydrogen retention in aluminium and beryllium: A modeling and experimental approach", Nucl. Mater. Energy 12 (2017) 1178.<br> [6] N. A. Babinov, A. G. Razdobarin, I. M. Bukreev et al, "Three-dimensional modeling of sputtered materials transport in diagnostic ducts of fusion devices", Nucl. Fusion 62 (2022) 126004.<br> [7] S. Ratynskaia, P. Tolias, M. De Angeli, D. Ripamonti, G. Riva, D. Aussems and T. W. Morgan, "Interaction of adhered beryllium proxy dust with transient and stationary plasmas", Nucl. Mater. Energy 17 (2018) 222.<br> [8] D. L. Rudakov, T. Abrams, I. Bykov et al., "Controlled low-Z metal melting in the DIII-D divertor", Abstract submitted for the 19th International Conference on Plasma-Facing Materials and Components for Fusion Applications, 22-26 May 2023, Bonn, Germany.<br> [9] P. Tolias, "Analytical expressions for thermophysical properties of solid and liquid tungsten relevant for fusion applications", Nucl. Mater. Energy 13 (2017) 42.<br> [10] P. Tolias, "Analytical expressions for thermophysical properties of solid and liquid beryllium relevant for fusion applications", Nucl. Mater. Energy 31 (2022) 101195.<br> [11] P. Tolias, S. Ratynskaia and K. Paschalidis, "Thermophysical properties for the published article - Experiments and modelling on ASDEX Upgrade and WEST in support of tool development for tokamak reactor armour melting assessments", Zenodo. https://doi.org/10.5281/zenodo.6778824.<br> [12] S. Ratynskaia, K. Paschalidis, P. Tolias et al., "Experiments and modelling on ASDEX Upgrade and WEST in support of tool development for tokamak reactor armour melting assessments", Nucl. Mater. Energy 33 (2022) 101303.<br> </p>
Composition and thermophysical properties of metallurgical plasmas - LTE calculations
<div> <p>This dataset contains two subsets:</p> <p>First - elemental compositions of the equilibrium gas phase over a variety of metallurgical processes conducted in direct-current plasma arc furnaces at a range of slag temperatures between the typical process temperature and the vaporisation temperature (defined as the lowest temperature at which only a gas phase exists). These were obtained from process simulations using thermochemical calculation software.</p> <p>Second - plasma composition and thermophysical properties at a range of plasma temperatures between 2000 K and 30000K under local thermodynamic equilibrium conditions, as calculated using minplascalc software (https://github.com/quinnreynolds/minplascalc, commit 967faf3). All calculations are at atmospheric pressure, and use the elemental gas phase compositions for each slag temperature to define the mass conservation constraints.</p> </div> <h2></h2>
Thermophysical properties and surface heterogeneity of landing sites on Mars from overlapping THEMIS observations-Data
<p>Files, scripts/functions, observed temperature data, and modeled results used in the Ahern et al. paper entitled: Thermophysical properties and surface heterogeneity of landing sites on Mars from overlapping THEMIS observations.</p>
Thermophysical properties of n-alkanes, 1-alcohols, and methyl esters
<p>This dataset contains reference data for thermophysical properties required for liquid droplet evaporation calculations for n-alkanes, 1-alcohols, and methyl esters. The dataset was used in "Evaluation of material property estimating methods for n-alkanes, 1-alcohols, and methyl esters for droplet evaporation calculations" published in Heat and Mass Transfer (Springer, <a href="https://doi.org/10.1007/s00231-021-03059-0">https://doi.org/10.1007/s00231-021-03059-0</a>). For the detailed references and origin of the data, please see the published paper.</p>
Thermophysical properties of hydrogen mixtures relevant for the development of the hydrogen economy: Review of available experimental data and thermodynamic models
<p>File: 1-s2.0-S096014812201271X-mmc1.docx</p> <p>This file (DOCX) contains additional figures associated with the hydrogen-containing systems.</p> <p>File: 1-s2.0-S096014812201271X-mmc2.xlsx</p> <p>This file (XLSX) contains tables with the coordinates of the VLE associated with the hydrogen-containing systems.</p> <p>File: 1-s2.0-S096014812201271X-mmc3.xlsx</p> <p>This file (XLSX) contains tables with the density data associated with the hydrogen-containing systems.</p> <p>File: 1-s2.0-S096014812201271X-mmc4.xlsx</p> <p>This file (XLSX) contains tables with the calorific data associated with the hydrogen-containing systems.</p> <p> </p> <p>File: 2022_Renewable Energy_Manuscript_repository.docx</p> <p>This is an author-created, un-copyedited version of an article accepted for publication in Renewable Energy (2022, 198, 1398-1429). The editor of the Journal is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher-authenticated, Open-Access version is available online at: https://doi.org/10.1016/j.renene.2022.08.096</p>
Characterisation of electro- and thermophysical properties of materials used in 3D printing
<p>A complex of materials’ properties was measured: electrical conductivity, thermal expansion, thermal conductivity, the density of the materials, and the technical density of construction with porosity.</p>
First-principles insights into the electronic, optical, thermophysical, and mechanical properties of lead-free cubic novel Ba3SbBr3 perovskite
<p>Lead-free halide perovskites have emerged as a significant class of materials with immense<br> potential for solar cell synthesis. Among these materials, Ba3SbBr3, a halide novel perovskite,<br> exhibits remarkable efficiency and holds promise for solar cell applications. There are a lot of<br> physical properties, including its elasticity, electrical composition, bonding, thermophysical,<br> optoelectronic properties, and optical properties, that remain unexplored. In this study, we<br> employ advanced density functional theory-based computations to investigate and unveil the<br> previously unidentified physical properties of novel Ba3SbBr3. Our research encompasses a wide<br> range of analyses, covering mechanical stability, phonon dispersion properties, thermophysical<br> properties, elastic parameters, and bonding nature. By precisely analyzing the phonon dispersion<br> properties and applying the Born-Huang criteria, we demonstrated it as mechanically stable.<br> Moreover, our investigation demonstrates that Ba3SbBr3 exhibits favorable machinability and</p> <p>mechanical isotropy through the analysis of various elastic parameters. ELATE’s three-<br> dimensional visualization and optical properties also show isotropic behavior in all directions.</p> <p>The electron charge density reveals the possession of the ionic bonding. Additionally, Ba3SbBr3<br> possesses a direct bandgap, which is essential for efficient optoelectronic performance. The study<br> also encompasses an exploration of the thermophysical properties including the melting<br> temperature, Debye temperature, Grüneisen parameter, and thermal expansion coefficient. The<br> higher values observed in these properties highlight the material's enhanced mechanical stability,<br> thermal stability, and overall suitability for optoelectronic device applications. A large range of<br> photoconductivity and absorption coefficient indicates the suitability of its application in solar<br> cells. The comprehensive investigation conducted in this study contributes novel insights into the<br> unexplored physical properties of Ba3SbBr3, providing a solid foundation for future research<br> endeavors. The findings presented here serve as a valuable reference and inspiration for further<br> theoretical and experimental studies in this rapidly evolving field. The knowledge gained from<br> this research holds great promise for advancing the development of solar engineering and device<br> technologies.</p>
Chang'E-4 rover spectra revealing micro-scale surface thermophysical properties of the Moon
<p>Dataset of the article 'Chang’E-4 rover spectra revealing micro-scale surface thermophysical properties of the Moon'</p>
Thermophysical properties of NaF-KF-UF4
<p>Thermophysical properties data collection of the molten fuel salt candidate NaF-KF-UF4 for advanced reactor development. A dedicated paper will be published shortly.</p>
Data for Influence of Coverage Dependence on the Thermophysical Properties of Adsorbates and its Impact on Microkinetic Models
<p>Data and scripts for the preprint "Influence of Coverage Dependence on the Thermophysical Properties of Adsorbates and its Impact on Microkinetic Models".</p>
Micro-scale Surface Thermophysical Properties Affected by Sample Scooping of the Moon as Revealed by Chang'E-5 Lander Spectra
<p>This archive includes data supporting the manuscript entitled "<span>Micro-scale Surface Thermophysical Properties</span><span><span> Affected by Sample Scooping</span><span> of the Moon as Revealed by Chang'E-5 Lander Spectra</span></span>" by Hengyue Jiao et al.</p>
Figure Data for Thermophysical Properties of the North Polar Residual Cap of Mars from MGS TES
<p>Includes comma separated value files for data used to generate paper figures. See 'info.txt' for data description.</p>
Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-g Mie
<p>Calculated and experimental data for all the figures in the publication </p>
Data from: Variations of thermophysical properties and heat transfer performance of nanoparticle-enhanced ionic liquids
The ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIm]Ac) was investigated as a promising absorbent for absorption refrigeration. To improve the thermal conductivity of pure [EMIm]Ac, ionic-liquid-based nanofluids (ionanofluids) were prepared by adding graphene nanoplatelets. The thermal stability of the ionic liquid and ionanofluids was analysed. The variations of the thermal conductivity, viscosity and specific heat capacity resulting from the addition of the graphene nanoplatelets were then measured over a wide range of temperatures and mass fractions. The measured data were fitted with appropriate equations and compared with the corresponding classical models. The results revealed that the ionic liquid and ionanofluids were thermally stable over the measurement range. The thermal conductivity greatly increased with increasing mass fraction, while only slightly changed with increasing temperature. A maximum enhancement in thermal conductivity of 43.2% was observed at a temperature of 373.15 K for the ionanofluid with a mass fraction of 5%. The numerical results revealed that the dispersion of the graphene nanoplatelets in the pure ionic liquid effectively improved the local heat transfer coefficient by up to 28.6%.
Thermophysical and kinetics properties up to 1100 °C of a selected Fe-C-O-Cr-Ni alloy by means of DTA, DSC measurements, and microstructural analysis
<p>Data from DTA, DSC, P-DSC. Heat capacity, enthalpy, austenite fractions.</p>
Data from: Variations of thermophysical properties and heat transfer performance of nanoparticle-enhanced ionic liquids
Open the record for dataset details and reuse information.
Data related to the article "Molecular dynamics simulations for the prediction of thermophysical properties of plutonium-based molten salts"
<p>Contains input files and data used to generate the figures of the article:</p> <p>Molecular dynamics simulations for the prediction of thermophysical properties of plutonium-based molten salts<br>(Giovanni Pireddu*, Mirella Simoes Santos*, David Lambertin, Timothée Kooyman)<br><br>*:Equal contribution</p> <p>Journal of Nuclear Materials<br>DOI: https://doi.org/10.1016/j.jnucmat.2024.155124</p> <p>The folder EXAMPLE_INPUT_FILES contains typical MetalWalls(https://doi.org/10.21105/joss.02373) (repository(https://gitlab.com/ampere2/metalwalls)) input files used to perform the molecular simulations.</p> <p>The folder DATA_FIGURES contains the processed data used to plot the figures of the paper (see below).</p> <p><br>Figure 2:<br>- 'Fig2_Density.dat' : density as a function of temperature (binary system, calculated from MD simulations)</p> <p>Figure 3:<br>- 'Fig3_HCap.dat' : heat capacity as a function of temperature (binary system, calculated from MD simulations)</p> <p>Figure 4:<br>- 'Fig4_Density.dat' : density as a function of temperature (ternary system, calculated from MD simulations)</p>
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OpenNeuro
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