Abstract
AbstractThe present paper presents a numerical investigation of the performance of finned heat sink based on nano-enhanced phase change materials (NANOPCM). The based Phase change material (PCM) used is the paraffin wax with a melting temperature. The heat sink filled with pure PCM is taken as a reference in this study. Besides, the performance of the nanoparticles: Graphene and Multi-walled Carbon Nanotubes are tested. The same weight fraction of the two nanoparticles is adopted. Furthermore, triangular pin fins are inserted inside the NANOPCM cavity to ameliorate the thermal conductivity. Results revealed that the dispersion of the graphene into the PCM decrease the base temperature and reduce the melting time compared to the base PCM. Al-though, the multi-walled carbon nanotubes rise the base temperature at the latent phase and increase the melting time. Besides, the insertion of the pin fins in the heat sink filled with NANOPCM: Paraffin/Graphene decrease the base temperature and reduce the melting time compared to the unfinned heat sink filled with pure paraffin. KeywordsPhase change materialsElectronic devicesNanoparticlesThermal management
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