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Keyword: Nanoparticles

Total Papers Found: 43

The Apparent Thermal Conductivity of Liquids Containing Solid Particles of Nanometer Dimensions: A Critique

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In the past twenty years, the behavior of the apparent thermal conductance of two or three phase systems comprised of solid particles with nanometer dimensions suspended in fluids, dubbed nanofluids, ...

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Potential applications of nanofluids for heat transfer

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Multiple studies claiming the usefulness of nanofluids for the enhancement of heat transport have been proven ill-founded. Although they have significantly raised thermal conductivities, there is an inerrant increase in ...

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Thermal conductivity of nanofluids – Experimental and Theoretical

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The use of the transient hot wire method has previously displayed that the thermal conductivity of fluids can be significantly increased by introducing nano-particles. The paper discusses the known methods ...

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Flame Retardant, Heat Insulating Cellulose Aerogels from Waste Cotton Fabrics by in Situ Formation of Magnesium Hydroxide Nanoparticles in Cellulose Gel Nanostructures

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Aerogels are promising thermal insulators because of their low thermal conductivity, durability and eco-friendly nature. However, aerogels become a problem because of their highly flammable properties. In this study, flame ...

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Thermal energy storage characteristics of Cu–H2O nanofluids

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The ability of Cu-H2O nanofluids to perform as phase change materials (PCMs) is investigated. The supercooling behavior of the nanofluids was determined as a function of copper nanoparticle concentration. ...

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Silver incorporated microencapsulation of n-hexadecane andn-octadecane appropriate for dynamic thermal management in textiles

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In this paper, the authors discuss the preparation of microencapsulated phase change materials (PCMs). The PCMs used in this study were n-hexadecane and n-octadecane, and the shell was made up ...

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Thermal contact resistance of epoxy composites incorporated with nano-copper particles and the multi-walled carbon nanotubes

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Raw multi-walled carbon nanotubes (r-MWCNTs) and Cu nanoparticles are dispersed in an epoxy matrix in varying quantities to create composite polymers with enhanced thermal conductivities. A study was then conducted ...

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Experimental Measurements of Thermophysical Properties of Al2O3– and TiO2–Ethylene Glycol Nanofluids

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The thermal conductivity and dynamic viscosity of Al2O3-ethylene glycol and TiO2-ethylene glycol nanofluids have been determined as a function of the nanoparticle volume fraction (from 1 to 3 %) and ...

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Improved heat recovery from paraffin-based phase change materials due to the presence of percolating graphene networks

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Four different paraffin-based nanocomposite phase change materials (PCMs) were prepared by dispersion of 20 v. % of graphene, multi-walled carbon nanotubes (MWCNTs), aluminum, or TiO2 nanoparticles into a paraffin matrix. It was ...

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Nano-PCMs for passive electronic cooling applications

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The authors have carried out an experimental and numerical study on the effects of seeding Al2O3 nanoparticles in a paraffin wax phase change material (PCM) on the thermal conductivity ...

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