In this paper, the performance of double glazed window filled with paraffin wax is analyzed numerically and experimentally to evaluate the improvement in the thermal performance and comfort of a room located in Baghdad, Iraq using paraffin wax. The proposed approach aims to reduce the required cooling load in the summer season and temperature fluctuations, and increase thermal resistance of the window. Finite volume method is employed to solve Navier Stokes equations inside the room, while finite difference combined with the enthalpy method is utilized to deal with the conduction, where the phase change problems in walls are taken into consideration. A room is made of a sandwich panel with window in the south wall is built. To verify the effectiveness of the proposed model, two different types of windows were used. The first one is a traditional single glass window (6 mm thickness), whereas the second is a double glazed window with 17 mm thickness which is filled with paraffin wax. Besides, three cases are taken into account according to the location of the room in the building and the location of the window, where the window is located in the ground floor, in the 1st floor, and in the ceiling). The obtained results reveal that the temperature of the double glazed window is reduced considerably compared to the single glass window for the ground floor, first floor, and ceiling by 8, 6, and 5 °C respectively.

在本文中，对石蜡填充的双层玻璃窗的性能进行了数值和实验分析，以评估使用石蜡在伊拉克巴格达的房间的热性能和舒适性的改善。所提出的方法旨在减少夏季所需的冷却负荷和温度波动，并增加窗户的热阻。采用有限体积法求解房间内的Navier Stokes方程，同时利用有限差分法与焓法相结合来处理传导问题，其中考虑了墙体中的相变问题。一个房间是由一个夹心板制成的，在南墙上建有窗户。为了验证所提出模型的有效性，使用了两种不同类型的窗口。第一个是传统的单玻璃窗（6毫米厚），而第二个是厚度为17毫米的双层玻璃窗，里面装有石蜡。此外，根据房间在建筑物中的位置和窗户的位置（窗户位于底楼，一楼和天花板上）考虑了三种情况。所获得的结果表明，与一层，一层和天花板的单层玻璃窗相比，双层玻璃窗的温度分别降低了8、6和5°C。根据建筑物在房间中的位置和窗户的位置（窗户位于底楼，一楼和天花板上）考虑了三种情况。所获得的结果表明，与一层，一层和天花板的单层玻璃窗相比，双层玻璃窗的温度分别降低了8、6和5°C。根据房间在建筑物中的位置以及窗户的位置（窗户位于底楼，一楼和天花板上）考虑了三种情况。所获得的结果表明，与一层，一层和天花板的单层玻璃窗相比，双层玻璃窗的温度分别降低了8、6和5°C。