An experimental investigation of enhanced thermal conductivity and expedited unidirectional freezing of cyclohexane-based nanoparticle suspensions utilized as nano-enhanced phase change materials (NePCM)

Category: Transient Plane Source

Author(s): J. M. Khodadadi, Liwu Fan

Keywords: copper, mass concentrations, nano-enhanced, nanofluids, nanoparticles, one-dimensional stefan model, pcms, phase change materials, thermal conductivity, tps technique, transient plane source, transient plane source (tps) method, unidirectional freezing

Abstract: Through the addition of copper oxide nanoparticles to cyclohexane in varying concentrations, a series of nano-enhanced phase change materials (NePCM) were prepared. The transient plane source (TPS) technique was used to characterize the NePCM at multiple temperatures. It was determined experimentally that increasing concentrations of nanoparticles in the liquid phase resulted in increasing thermal conductivity, but increasing nanoparticle concentration in the solid phase didn't have the same effect.Unidirectional freezing was also investigated.

Reference: International Journal of Thermal Sciences, 62 (2012) 120-126

DOI: 10.1016/j.ijthermalsci.2011.11.005

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