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Recommended Papers for: Ali A. Alemrajabi

Total Papers Found: 4

Enhanced thermal conductivity of n octadecane containing carbon based nanomaterials

This paper focused on determining the thermal conductivity of multiwalled carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) that were dispersed throughout n-octadecane as phase change materials (PCMs). The Thermal Constants Analyzer TPS measured the thermal conductivity of the n-octadecane samples at solid and liquid phases using the transient plane source (TPS) method. Results showed that the thermal conductivity of the solid phase n¬-octadecane/MWCNTs samples increased with nanotube concentration. ...

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A novel phase change material containing mesoporous silica nanoparticles for thermal storage: A study on thermal conductivity and viscosity

A composite PCM was prepared from n-octadecane and mesoporous silica (MPSiO2) nanoparticles. The nanoparticles were added in quantities ranging from 1 wt. % to 5 wt. %, and the thermal conductivity of each composite sample was determined as a function of temperature. The most significant enhancement in thermal conductivity was observed in the sample containing 3 wt. % MPSiO2 nanoparticles. The viscosity of the composite samples was also investigated and it was found that at mass ...

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Enhanced thermal conductivity of n-octadecane containing carbon-based nanomaterials

The use of organic compounds as phase change materials (PCMs) is limited by the low thermal conductivity of these compounds. In this study, multi-walled carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) were dispersed in n-octadecane to determine if this nanocomposite PCM would have a higher thermal conductivity than that of pure n-octadecane. The thermal conductivity of the nanocomposite PCMs was measured using the transient plane source (TPS) method at mass ...

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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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