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首页> 外文期刊>Building and Environment >Application of shape-stabilized phase-change material sheets as thermal energy storage to reduce heating load in Japanese climate
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Application of shape-stabilized phase-change material sheets as thermal energy storage to reduce heating load in Japanese climate

机译：应用形状稳定的相变材料片作为热能存储以减少日本气候中的热负荷

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A shape-stabilized phase-change material (SSPCM) was installed on the floor, walls, and ceiling of various buildings, and its effects on indoor room temperature stabilization and heating load reduction were examined using experiments and simulations. The PCM model was developed based on the specific heat capacity of the SSPCM sheets measured using a thermostatic chamber and simulations results were obtained using EnergyPlus. The validity of the PCM model was examined by comparing the simulation and experimental results, which showed similar temperature tendency. The model was then examined to determine the applicability of PCM to the various climates in Japan through annual heating load simulations. The target buildings were classified as Type A (no PCM, reference), Type B (only the floor contained PCM), and Type C (the floor, walls, and ceiling contained PCM) using a standard Japanese house. Types B and C had the same amount of PCM. The simulation was run for 21 cases, with one being run for each type of building in seven Japanese climates. In addition, if the installation area of the PCM was expanded, the absorption area of solar radiation also increased; thus, the melting and solidification times of the PCM decreased and its heat storage increased. Thereby, diurnal temperature swing decreased and the efficiency of the PCM increased. The heat-storage performance changed depending on the installation area and position, even when the same amount of PCM was installed in the building. Therefore, when using PCMs in buildings, the installation area and position should be considered alongside the amount of PCMs. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在各种建筑物的地板，墙壁和天花板上安装了形状稳定的相变材料（SSPCM），并通过实验和模拟研究了其对室内室温稳定和降低热负荷的影响。基于使用恒温室测量的SSPCM片材的比热容，开发了PCM模型，并使用EnergyPlus获得了模拟结果。通过比较仿真和实验结果检验了PCM模型的有效性，结果显示出相似的温度趋势。然后通过年度热负荷模拟对模型进行检查，以确定PCM在日本各种气候中的适用性。使用标准日本房屋将目标建筑物分类为A型（无PCM，参考），B型（仅地板包含PCM）和C型（地板，墙壁和天花板包含PCM）。类型B和C具有相同数量的PCM。模拟进行了21种情况，其中一种在日本的7种气候条件下针对每种类型的建筑物进行了模拟。另外，如果扩大PCM的安装面积，太阳辐射的吸收面积也会增加；因此，PCM的熔化和固化时间减少，并且其储热增加。由此，昼夜温度波动减小并且PCM的效率提高。即使在建筑物中安装了相同数量的PCM，储热性能也会根据安装区域和位置而变化。因此，在建筑物中使用PCM时，应与PCM的数量一起考虑安装区域和位置。 （C）2017 Elsevier Ltd.保留所有权利。

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