Analysis of the Melting Time of Phase Change Material in a Heat Exchanger with Sinusoidal Inner Duct

Three-dimensional computational analysis has been performed to investigate the melting time of phase change material (PCM) in a sinusoidal pipe inserted into another pipe. The other is filled with PCM and system heated from inner at different temperatures. main aim study control time. finite volume method (FVM) used solve time-dependent governing equations. Four cases are chosen for wall see effects geometry on melting. After analysis, it observed that can be controlled via an adjustment geometrical parameter, namely passive technique, without spending extra energy.