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Recommended Papers for: phase change materials

Total Papers Found: 96

Enhanced Thermal Conductivity and Expedited Freezing of Nanoparticle Suspensions Utilized as Novel Phase Change Materials

Nanoparticle suspensions were prepared in two PCMs to determine the effect of the addition of nanoparticles on thermal conductivity and expediting freezing. The base PCMs used were cyclohexane and eicosane, and copper oxide nanoparticles were suspended in these hydrocarbons to produce nano-enhanced PCMs (nePCMs). The enhancement of thermal conductivity and expedited freezing were investigated by analytic, experimental, and numerical methods. The thermal conductivity in the liquid phase was significantly enhanced ...

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Experimental study of the thermal properties of composite stearic acid / coffee grounds / graphite for thermal energy storage

Composite phase change materials were prepared using stearic acid, coffee grounds, and graphite. The coffee grounds were used as a supporting material for the stearic acid, and the graphite was added in an effort to enhance the thermal conductivity of the composite. The composites were characterized by SEM and FT-IR, the thermal conductivity was determined by the phase change temperature and latent heat were determined by differential scanning calorimetry. The ...

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Incorporation of Phase Change Materials in Cementitious Systems via Fine Lightweight Aggregate

The incorporation of phase change materials (PCMs) into concrete bridge decks shows promise as a method of decreasing freeze/thaw cycling in bridge decks. The authors have conducted a study to determine the best carrier to be used for the incorporation of PCMs into concrete, as well as the effects of the incorporation of the carriers and PCMs on strength and thermal properties of mortars. Four different PCMs (PCM6, PT4, ...

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Experimental investigation on thermal and rheological properties of n-octadecane with dispersed TiO2 nanoparticles 

The thermal and rheological properties of n-octadecane, a phase change material, with dispersed TiO2 nanoparticles were investigated at varying temperatures. The properties were investigated in both the solid and liquid phases, with varying mass fractions of TiO2 nanoparticles. The thermal conductivity was found to be enhanced in all of the composite samples when compared to the thermal conductivity of pure n-octadecane, and the maximum enhancement occurred at 3 wt. % TiO2 in ...

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Graphene Thermal Properties: Applications in Thermal Management and Energy Storage

The authors present a review of the thermal properties of graphene, and present one example of a practical application of graphene in thermal management, as an additive to phase change materials. It was found that the use of liquid-phase-exfoliated graphene as a filler in phase change materials has potential to enhance the thermal management in high-power battery packs. The results also indicated that graphene had the ...

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