The past decade has witnessed a lot of technological advancement towards the use of renewable and sustainable energy resources, these efforts are geared towards mitigating the effect of climate change and to make our environment safe and habitable. Today, buildings account for over 40 % of the world's total energy consumption. Thermal energy storage in buildings contributes significantly to the reduction of building energy demand by releasing its stored energy when the demand arises. Trombe walls are used for thermal energy storage and delivery in buildings and thus regulates the rooms ambient temperature. A lot of studies have considered the use of phase change materials for latent heat thermal energy storage in Trombe walls in order to improve its performance. The selection of phase change materials for optimum Trombe wall performance was considered in this article, the weights of the various criteria were determined using the entropy weight method while the various alternative phase change materials were ranked using the technique for order preference by similarity to ideal solution (TOPSIS) methodology. The four criteria considered were the heat of fusion, thermal conductivity, density, and cost. A total of eleven commonly available phase change materials were considered in this study, with phase change temperatures within the range 18°C to 28°C which corresponds to the average temperature range for human comfort. The result had the thermal conductivity was assigned the highest weight of 72.12 % while the eutectic combination of capric acid and palmitic acid ranked the best at 95.1 % for Trombe wall application.

在过去的十年中，在使用可再生和可持续能源方面见证了许多技术进步，这些努力旨在减轻气候变化的影响，并使我们的环境安全和宜居。如今，建筑物占世界总能耗的40％以上。建筑物中的热能存储通过在需求出现时释放其存储的能量，为减少建筑物的能源需求做出了巨大贡献。Trombe墙用于建筑物中的热能存储和传递，因此可以调节房间的环境温度。为了改善其性能，许多研究已经考虑将相变材料用于Trombe壁中的潜热热能存储。本文考虑了选择具有最佳Trombe壁性能的相变材料，使用熵权法确定了各种标准的权重，同时使用了与理想解决方案相似的顺序优先技术，对各种替代相变材料进行了排序（TOPSIS）方法论。考虑的四个标准是熔化热，导热系数，密度和成本。在这项研究中，总共考虑了11种常用的相变材料，相变温度在18°C至28°C的范围内，这与人类舒适度的平均温度范围相对应。结果表明，导热系数的最高权重为72.12％，而癸酸和棕榈酸的低共熔混合物的最佳重量为95。