The storage of thermal energy in a trapezoidal aluminum enclosure via melting of PCM phase change material is studied. Experimental observations and numerical simulation were made to examine the process for the phase change of paraffin wax. The development of LHTES: latent heat thermal energy storage system is a promising alternate option to manage the growing imbalance of energy consumption and supply. Successive melting of paraffin Rubitherm-RT35 is designed when it is heated from one side of the frame and the remaining sides were insulated. Two configurations were examined for the heat storage material: (a) paraffin wax only via experimental set up; (b) PCM melting in a fin extended aluminum structure via simulation. From the lab set up, melt fronts of melting PCM for various time lengths are photographed. In second procedure, improvement in thermal conductivity was desired through fin extension by utilizing software Multi-physics Comsol version 5.4. Transient heat conduction and enthalpy function built in the fluid-solid module are hired. Simulation procedure was carried out with fin augmentation. The melting time is notably reduced with enhancing technique of thermal conductivity via fins.

研究了通过熔化 PCM 相变材料在梯形铝外壳中存储热能。对石蜡相变过程进行了实验观察和数值模拟。LHTES 的发展：潜热蓄热系统是管理日益严重的能源消耗和供应不平衡的一个有前途的替代选择。石蜡的连续熔化 Rubitherm-RT35 设计为从框架的一侧加热，其余侧被绝缘。对蓄热材料的两种配置进行了检查：（a）石蜡仅通过实验设置；(b) PCM 在翅片扩展铝结构中通过模拟熔化。从实验室设置中，拍摄了不同时间长度的熔化 PCM 的熔化前沿。在第二个程序中，通过使用 Multi-physics Comsol 5.4 版软件，通过翅片扩展来提高导热性。使用内置于流固模块中的瞬态热传导和焓函数。模拟程序是通过鳍增加进行的。通过翅片提高热导率的技术显着减少了熔化时间。