Abstract This paper presents a study on the integration of PCM layer to the exterior walls of a residential building. The main aim of the paper is to investigate the phase state and the heat storage form of a PCM layer integrated into the exterior walls of a residential apartment during heating season. In addition, the winter thermal performance and winter energy saving potential of a residential apartment incorporated with a PCM layer is presented. In the study, a numerical model including building characteristics, residents’ behavior and outdoor conditions was created and validated with the experimental data in the literature. Numerical simulations have been performed for different types of wall structure under changing weather conditions. From the obtained results it can be seen that PCM layer integration give better results for the cases where there is no phase change. Although winter heating energy requirement is reduced with PCM layer integration, it is concluded that PCM layer integration is not suitable since PCM usage is unreasonable in cases where there is no phase change.

中文翻译：

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采暖季住宅外墙相变材料(PCM)层相态及蓄热形态研究

摘要 本文研究了PCM层与住宅建筑外墙的集成。本文的主要目的是研究在采暖季节集成到住宅外墙的 PCM 层的相态和蓄热形式。此外，还介绍了结合 PCM 层的住宅公寓的冬季热性能和冬季节能潜力。在研究中，建立了包括建筑特征、居民行为和室外条件在内的数值模型，并使用文献中的实验数据进行了验证。在不断变化的天气条件下，对不同类型的墙体结构进行了数值模拟。从获得的结果可以看出，PCM 层集成在没有相变的情况下给出了更好的结果。尽管 PCM 层集成减少了冬季供暖能源需求，但可以得出结论，PCM 层集成不适合，因为在没有相变的情况下使用 PCM 是不合理的。