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 9 of 9 for “"Thermal Conductivity Enhancement"”.
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Thermal conductivity of fluids containing suspension of nanometer-sized particles
… been reported to possess substantially higher thermal conductivity than their respective base fluids. This thesis reports on an experimental study of the effect of base fluid, particle size, particle volume concentration, and sonicating technique on the thermal conductivity enhancement of …
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Investigation on thermal conductivity and AC impedance of graphite suspension
… of nanoparticles, have substantially higher thermal conductivity than that of the base fluids. However, the reported high thermal conductivity sometimes cannot be reproduced. Theoretically, potential mechanisms leading to this enhancement are still under scrutiny. In this thesis, we present …
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Lattice Vibration Study Of Silica Nanoparticle In Suspension
… characteristics compared to the base fluid. The thermal transport properties of nanofluids depend on various parameters e.g. interfacial resistance, Brownian motion of particles, liquid layering at the solid-liquid interface and clustering of nanoparticles. In this work atomic scale simulation …
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Transport modeling of simple fluids and nano-colloids : thermal conduction mechanisms and coarse projection
… dynamics (MD) simulations. The intrinsic thermal conductivity is decomposed into self and cross correlations of the three modes that make up the microscopic heat flux vector, namely, the kinetic, the potential and the virial. By this decomposition analysis, the interplay between the …
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Carbon nanotube growth on challenging substrates : applications for carbon-fiber composites
… multifunctional benefits such as electrical and thermal conductivity enhancement. Growth of CNTs on carbon fibers can be achieved by chemical vapor deposition (CVD) techniques, however previous processes for doing so have resulted in a significant reduction in the tensile strength and stiffness …
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ENGINEERING THERMAL CONDUCTIVITIES FOR ENERGY APPLICATIONS
… underscores the urgency for innovations in thermal management materials and structures. Thermal conductivity engineering stands at the forefront of these innovations, aiming to optimize the transfer or insulation of heat for various energy applications. This dissertation explores the …
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Critical evaluation of anomalous thermal conductivity and convective heat transfer enhancement in nanofluids
… properties. Nanofluids have higher thermal conductivity and single-phase heat transfer coefficients than their base fluids. The possibility of very large thermal conductivity enhancement in nanofluids and the associated physical mechanisms are a hotly debated topic, in part because …
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A solar‐driven membrane‐based water desalination/purification system
… the application of solar energy to provide the thermal energy requirement of MD modules has been the focal point of research in this field in recent years. Despite many studies and efforts that have been conducted to date, solar driven membrane based systems have still many undiscussed aspects. …
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Heat Transfer Enhancement using Iron Oxide Nanoparticles
… the particles less than 33 nm. Calorimetry and thermal circuit modeling indicate that the 15 nm particle ferrofluid enhanced heat capacity. The smaller particle ferrofluid also demonstrated up to a 39% improvement in heat transfer, while the larger particle ferrofluid degraded the heat transfer …