Journal of the Taiwan Institute of Chemical Engineers 2018-03-29

Numerical simulation for solidification in a LHTESS by means of nano-enhanced PCM

Mohsen Sheikholeslami

Index: 10.1016/j.jtice.2018.03.013

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Abstract

In order to saving thermal energy, latent heat thermal energy storage systems (LHTESS) can be utilized. Common phase change material (PCM) has low thermal conductivity. In this paper, CuO nanoparticles have been used to enhance the performance of LHTESS. CuO–water nanofluid properties are estimated by means of KKL. This unsteady process has been simulated by Finite element method. Results prove that solidification process is accelerated by adding CuO nanoparticles in to pure PCM. As number of undulations increases average temperature and total energy profiles reduce while solid fraction profile increases. Also, it can be concluded that highest rate of solidification is obtained for dp = 40 nm.

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