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HomeKeywordsthermal conductivity

Keywords: thermal conductivity

Study on the Heat Transfer Capability of Silicon Carbide – Ethylene Glycol Nanofluid

Bobbo S., Colla L., Scattolini M., Fedele L., Consiglio Nazionale delle Ricerche, IT
Ethylene glycol-based nanofluids containing silicon carbide (SiC) in the concentrations 0.1, 1 and 5 wt% were characterized, in order to understand their potentiality to improve the heat transfer efficiency of the base fluid. Measurements performed [...]

Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures

Kolosov O.V., Pumarol M.E., Tovee P., Rosamond M.C., Petty M.C., Zeze D.A., Falko V., Lancaster University, UK
We report direct imaging of thermal transport in single and few-layer graphene with approximately 50 nm lateral resolution using high vacuum scanning thermal microscopy. Images reveal low thermal resistance of areas of suspended graphene where [...]

Prediction of Thermal Conductivity of Liquid Methane/Ethane-Cu Nanofluids via Molecular Dynamics Simulations

Babaei H., Khodadadi J.M., Auburn University, US
The improvement of thermal conductivity by suspending nanoparticles in two hydrocarbon-based nanofluids is investigated by means of molecular dynamics simulations. Base fluids are methane and ethane and nanoparticles are pure copper. Two temperatures for which [...]

An Experimental Determination of Temperature-Dependent Thermal Conductivity of Cyclohexane-Based Nanofluids

Fan L., Khodadadi J.M., Auburn University, US
In extending their applicability , utilization of nanofluids as superior solid-liquid phase change materials (PCM) for thermal energy storage has been proposed recently. This extension of potential utility of nanofluids will require thermal conductivity measurements [...]

Thermal Conductivity and Viscosity Measurements of Water-Based Silica Nanofluids

Bobbo S., Colla L., Scattolini M., Agresti F., Barison S., Pagura C., Fedele L., CNR-Consiglio Nazionale delle Ricerche, IT
Nanofluids are a new class of fluids that could significantly improve the thermal properties of fluids used as thermal vectors. They are obtained by dispersing in common fluids (water, glycol, oil) solid nanoparticles (diameter <100 [...]

Automated test system for in-situ testing of reliability and aging behaviour of thermal interface materials

Abo Ras M., Berliner Nanotest and Design GmbH, DE
The on-going need for miniaturization and speed in electronics industry has brought a requirement for better performing thermal management systems. Therefore we have developed a test stand to characterize the aging behaviour of most common [...]

Measurement of Figure of Merit for a Single β-Silicon Carbide Nanowire by the Four-Point Three-ω Method

Choi T.Y., Univ. of North Texas, US
The thermoelectric figure of merit (ZT) of a single β-Silicon Carbide (SiC) nanowire (NW) was measured using the four-point three-omega (3-ω) method for the first time. The electrical conductivity (σ), thermal conductivity (κ), and Seebeck [...]

Measurement of Thermal Properties of Suspensions of Nanoparticles in Engine Oil

Khan Mohammadi S., Etemad S.Gh., Thibault J., Isfahan University of Technology, CA
Nanofluids refer to new kinds of engineering materials which are prepared by dispersing fine nanometer sized particles (smaller than 100 nm) in a base fluid. It has been recognized in the past decade that nanofluids [...]

Prediction Model of Thermal Conductivity for Composite Materials with Nano Particles

Huang C-K, National Taipei University of Technology, TW
In this study, the transport theorem of phonons and electrons is utilized to create a model to predict the thermal conductivity of composite materials with nano particles. By observing or assuming the particle displacement in [...]

Thermal conductivity enhancement of carbon nanotube composites

Deng F., Zheng Q.-S., Tsinghua University, CN
Simple models for the thermal conductivity enhancements of carbon nanotube (CNT) composites are presented as analytical functions of volume fraction, anisotropic thermal conductivities, aspect ratio, non-straightness, and interfacial thermal resistance of the CNTs. The model [...]

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