Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"thermophysical property"”.
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Enabling extreme fast charging systems in electric vehicles through thermal management and thermophysical property characterization
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Study on heat transfer to supercritical water in application to SMRs
… that relied on NIST REFPROP v.10 for thermophysical property values. The experimental inside-wall temperature and heat transfer coefficient profiles were stable while the selected correlations generated poor predictions. NIST REFPROP v.10 was investigated at the critical point of water …
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Modeling of and experiments on electromagnetic levitation for materials processing
… growth, phase selection, reaction kinetics, and thermophysical property measurements. However, the design of these systems has, for the most part, been empirical, and it will be shown that a more fundamental approach can provide benefits in a number of aspects, leading to a better design. The …
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Thermophysical and Structural Measurements of Liquid Metallic Alloys Using Electrostatic Levitation
… techniques of data acquisition and analysis for thermophysical property measurements under electrostatic levitation are presented, with demonstrative examples from select compositions from the Cu-Zr system. The development of techniques and software for the analysis of X-ray diffraction data …
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Investigation of fluid properties at non-ambient conditions
A requirement for thermophysical property data of diesel fuels at conditions removed from ambient was identified. A series of measurements of the pressure-volume-temperature relations of diesel fuels was undertaken using a Micro-PVT apparatus at pressures to 300MPa in the temperature range 25 to …
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Thermophysical and Thermochemical Property Measurement and Prediction of Liquid Metal Titanium Alloys with Applications in Additive Manufacturing
Accurate high-temperature thermophysical property data for liquid metals and alloys are important for simulation of laser-based 3D printing processes. To understand and better control such additive manufacturing processes, knowledge of density, viscosity, and surface tension of liquid metals and …
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Resolving Terrain Effects in Borehole Temperature Profiles
… from temperature measurement, depth measurement, thermophysical property measurements, and terrain effects. Terrain effects include topography, changes in land cover over time, direct and diffused sun radiation, and groundwater flow. </p><p>This study focused on specific terrain effects …
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Fluoride-salt-cooled high-temperature test reactor thermal-hydraulic licensing and uncertainty propagation analysis
… Through a literature review, liquid-salt coolant thermophysical properties have been recommended along with their uncertainties of 2-20%. This study tackles determining the effects of these high uncertainties by proposing a newly developed methodology to incorporate uncertainty propagation in a …
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Thermocapillary convection in laser melted pools during materials processing
… which incorporated variables mesh and variable thermophysical property capabilities. Results from both the two-dimensional and three-dimensional models indicate that convection of the molten metal within the melt region during laser welding plays an important role in the overall heat transfer of …
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Cast Metal-Ceramic Composite Lattice Structures for Lightweight, Energy Absorbing, and Penetration Resistant Applications
… grades. The first challenge was the lack of thermophysical property data in the literature for this alloy system. Hence, we used the CALPHAD method to calculate all the datasets needed to perform the mold filling and solidification simulation. Several of these calculations were validated …
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Fundamental Understanding and Functionality of Silicon Oxycarbide
Silicon oxycarbide (SiOC) is a unique polymer-derived ceramic (PDC) containing silicon, oxygen, and carbon atoms in the form of an amorphous network structure. The phase separation of SiOC is determined by polymeric precursors, pyrolysis temperatures, and atmosphere, which results in different …
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Robust simulation and optimization methods for natural gas liquefaction processes
… unable to handle calculations involving nonideal thermophysical property models reliably. To this end, robust nonsmooth extensions of the celebrated inside-out algorithms were developed. These algorithms allow for challenging phase equilibrium calculations to be performed successfully even in the …
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Nanomaterial-enabled manufacturing for next-generation multifunctional advanced composite prepreg laminate architectures
… aerospace-grade CFRP prepreg system. Thermophysical and mechanical property comparisons suggest that there is no difference in laminates cured via OoO and oven curing as evaluated by void content, degree of cure analysis, short beam shear interlaminar testing, dynamic mechanical …
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Modelling of the liquid slag behaviour in the continuous casting mould
… were introduced in the model, in addition to the property changes (water to steel, oil to slag, air to argon). Of importance here was the development of a solidified skin of steel on the water-cooled mould walls and also the melting of flux powder into a liquid layer on the top surface. This last …