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Recommended Papers for: Nanoparticles

Total Papers Found: 77

An experimental determination of temperature-dependent thermal conductivity of cyclohexane-based nanofluids

Many studies have been conducted on nanofluids with bases of water and ethylene glycol. Cyclic alkane, more commonly known as cyclohexane, can be used as the base liquid for cold storage, however minimal research has been conducted with these solutions. This study explores the temperature-dependent thermal conductivity of cyclohexane with copper oxide nanoparticles. Thermal conductivity was measured using the Thermal Constants Analyser. Samples were tested between 10 °C and 50 °C, increasing ...

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Preparation and characterization of molten salt based nanothermic fluids with enhanced thermal properties for solar thermal applications

As green energy becomes increasingly important, more companies are exploring the possibility of using molten salts as heat transfer fluids for concentrated solar power. One of the downfalls of molten salts is their low thermal conductivity, which can be altered with the addition of thermally conductive nanoparticles. The thermal conductivity analyzer was used in this experiment to measure the thermal conductivity of molten salts after the addition of MoS2 (molybdenum ...

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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

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 retardant cellulose insulators were formed from scrap pieces of cotton. Firstly, an NaOH/Urea solution was combined with the scrap pieces of cotton to create a nanoporous three-dimensional cellulose gel. This gel will ultimately serve as a template for the ...

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Thermal energy storage characteristics of Cu–H2O nanofluids

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. The contact angle and thermal conductivity of this PCM were also determined experimentally. Based on the experimental results, the authors conclude that these nanofluids could be useful in thermal energy storage applications....

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

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 of poly(urea-formaldehyde). The effect of dispersing silver nanoparticles in the shells on the thermal storage properties of these encapsulated PCMs was also investigated. The enthalpies of fusion of the samples were determined experimentally, as was the thermal conductivity. It ...

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