The present study simulates a solar thermal panel using the finite element method (FEM) in COMSOL Multiphysics. A cropper pipe of a water-Al₂O₃ nanofluid flow was used under a solar panel. A number of elliptic fins were attached to the pipe. The fins were holed and configured in three models. The system of the pipe and fins was placed in a chamber filled with CaCl₂.6H₂O as a phase change material (PCM) under the panel. The proposed solar system was used on a pitched roof to partially supply the energy demand of the Boarding clinic. The energy calculations were carried out in Design Builder. It was found that PCM began to melt at t=40 min. The fins with a central hole led to 10.4% higher melted PCM than double-hole fins at t=100 min. The centrally-holed fins minimized the output flow temperature. However, they also minimized the PVT temperature. It was also found that the proposed system could supply 9.11% of the heating demand of the building in the coldest month of the year. In hot months, however, up to 33.3% of the energy required to heat water could be supplied by the PVT + PCM system.

本研究使用 COMSOL Multiphysics 中的有限元法 (FEM) 模拟太阳能热板。在太阳能电池板下方使用水-Al ₂ O _{3纳米流体流的切割管。}许多椭圆形翅片连接到管道上。散热片被打孔并配置为三种型号。管和翅片的系统被放置在一个充满CaCl ₂ .6H ₂ O 的室中，作为相变材料（PCM）的面板下方。拟建的太阳能系统用于斜屋顶，以部分满足寄宿诊所的能源需求。能量计算在 Design Builder 中进行。发现 PCM 在t开始熔化=40 分钟。在t = 100 min时，具有中心孔的翅片导致熔化的 PCM 比双孔翅片高 10.4% 。中心孔翅片将输出流量温度降至最低。然而，它们也将 PVT 温度降至最低。研究还发现，在一年中最冷的月份，拟议的系统可以满足建筑物 9.11% 的供暖需求。然而，在炎热的月份，PVT + PCM 系统可以提供高达 33.3% 的加热水所需的能量。