Temperature of an Externally Heated Metallic Microparticle in a Phase Change Material
Master of Science
Phase change materials (PCMs) play a significant role in the field of thermal energy storage. The strength of PCM stems from their ability to keep a large amount of energy in a small temperature difference. In this study, a spherical metallic microparticle which is embedded centrally in a spherical PCM enclosure is being heated externally to lead surrounding the PCM to melt. The particle is assumed to be heated by solar radiation while the PCM is transparent to it. The fundamental mathematical model and 3D numerical simulation of the problem are presented. Emphasis is placed on the highly elaborate simulation of the problem performed in ANSYS Fluent. The temperature profile, phase change phenomena, and the effects of interface thermal resistance are investigated comprehensively. Outcomes are discussed and compared with literature.
Phase change material; stefan problem