Effect of Nanoparticles Enhanced Phase Change Materials in the Charging-Discharging Performance of Thermal Storage System
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Abstract
Use of nanoparticles to increase the rate of heat transfer is one way to enhance the thermal characteristics of phase change materials (PCM). In this investigation, the thermal parameters of paraffin composites such as thermal conductivity, density, latent heat and temperatures are measured. Nanoparticles of molybdenum oxide (MoO2) were added at concentrations of 0.1, 0.2 and 0.3 wt. % to prepare modified paraffin wax. Surface resolution of the samples was analysed using scanning electron microscopy (SEM). As the concentration of nanoparticles in composite increases, the material's heat capacity falls. Compared to pure PCM, melting and pouring temperatures slightly increased due to the presence of nanoparticles. Applications for nanoparticle-infused composites include building materials, hot water systems, home heating systems, restaurants and to control temperature peak stabilization and greenhouses effect etc. The findings of this investigation will help to identify the appropriate application of nano enhanced PCM to store heat in an energy storage system.
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