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首页> 外文期刊>Building and Environment >Climatic cycling assessment of red clay/perlite and vermiculite composite PCM for improving thermal inertia in buildings
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Climatic cycling assessment of red clay/perlite and vermiculite composite PCM for improving thermal inertia in buildings

机译：红粘土/珍珠岩和ver石复合PCM的气候循环评估，以改善建筑物的热惯性

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One of the ways to reduce building energy is to actively release or store the thermal energy through phase change materials (PCMs) to use heat energy efficiently. PCMs have the major drawback of leaking during the solid-liquid phase transition. Therefore, PCMs must be applied to buildings through phase stabilization. Expanded vermiculite (EV) and expanded perlite (EP) are porous nanoclay materials possessing excellent properties as containers for PCMs. The applied PCM is n-octadecane, which belongs to the organic paraffin series, is thermally stable, and has high latent heat capacity. Shape-stabilized PCM (SSPCM) is stabilized by the vacuum impregnation method by physical bonding only, without chemical reaction. The thermal properties of the prepared SSPCM are analyzed by DSC, TGA, TCi, and enthalpy calculation. The RC-SSPCMs panel is developed using red clay (RC), an eco-friendly building material. The thermal performance of the manufactured panels is analyzed by the climate cycling test, which considers the daily temperature behavior. In the analysis of the thermal performance, the peak temperature reduced by up to 1.6 degrees C during the phase transition of RC/EP-SSPCMs (P10), the time-lag effect in the phase change transition of RC/EP-SSPCMs (P10) occurred for up to 1.33 h.
机译：减少建筑能耗的方法之一是通过相变材料（PCM）主动释放或存储热能，以有效利用热能。 PCM的主要缺点是在固液相转变过程中会发生泄漏。因此，必须通过相位稳定将PCM应用于建筑物。膨胀ver石（EV）和膨胀珍珠岩（EP）是多孔纳米粘土材料，具有作为PCM容器的优异性能。所应用的PCM为正十八烷，属于有机石蜡系列，具有热稳定性和高潜热容量。形状稳定的PCM（SSPCM）通过真空浸渍方法仅通过物理结合即可稳定，而不会发生化学反应。通过DSC，TGA，TCi和焓计算分析所制备的SSPCM的热性能。 RC-SSPCMs面板是使用环保建筑材料红粘土（RC）开发的。人造板的热性能通过气候循环测试进行分析，该测试考虑了日常温度行为。在热性能分析中，RC / EP-SSPCM（P10）的相变过程中峰值温度降低了1.6摄氏度，RC / EP-SSPCMs（P10）的相变过渡过程中存在时滞效应）发生长达1.33小时。

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