Abstract Integration of a building mass with a phase change-energy storage material is able to improve its thermal efficiency. With this respect, pumice was evaluated as low-cost supporting material for development of energy-efficient composites containing capric acid (CA) and polyethylene glycol(PEG) as phase change material (PCM). The developed leak-proof composites was also incorporated separately with ordinary cement (OC; Portland Cement) to produce novel plaster with thermal energy storage (TES) ability for thermoregulation of buildings. The DSC analysis results demonstrated that the shape-stabilized composite PCMs (S-SCPCMs) had melting temperatures of 31.03 °C and 8.80 °C and TES capacity of 116.27 J/g and 98.39 J/g, respectively. Cycling thermal degradation stability and TES dependability of the leak proof composites were examined by TGA techniques. The lab-scale test revealed that the indoor center temperatures (ICT) of the cubic chambers plastered separately by pumice/CA/OC and pumice/PEG/OC mortars were maintained at comfortable temperature range for relatively longer times compared to the control chamber plastered by OC mortar.

中文翻译：

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评估浮石用于开发低成本和节能复合相变材料及其水泥灰泥的实验室规模温度调节性能

摘要 建筑体与相变储能材料的集成能够提高其热效率。在这方面，浮石被评估为用于开发含有癸酸 (CA) 和聚乙二醇 (PEG) 作为相变材料 (PCM) 的节能复合材料的低成本支撑材料。开发的防漏复合材料还与普通水泥（OC；波特兰水泥）单独结合，以生产具有热能储存 (TES) 能力的新型石膏，用于建筑物的温度调节。DSC 分析结果表明，形状稳定的复合 PCM（S-SCPCM）的熔化温度分别为 31.03 °C 和 8.80 °C，TES 容量分别为 116.27 J/g 和 98.39 J/g。通过 TGA 技术检查了防漏复合材料的循环热降解稳定性和 TES 可靠性。实验室规模的测试表明，与由浮石/CA/OC 和浮石/PEG/OC 砂浆分开抹灰的立方室的室内中心温度 (ICT) 保持在舒适温度范围内的时间与用抹灰的控制室相比相对更长。 OC砂浆。