Experimental Study on the Thermal Storage Performance and Preparation of Glycerin Mixtures Used in the Phase Change Wall
Experimental Study on the Thermal Storage Performance and Preparation of Glycerin Mixtures Used in the Phase Change Wall
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DOI：
10.1016/j.solmat.2008.07.002
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发表时间：
2008-11
期刊：
影响因子：
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通讯作者：
Zhanxiu Chen;Guanyi Chen
中科院分区：
文献类型：
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作者：
Zhanxiu Chen;Guanyi Chen
本文研究了正十七烷、正十八烷、正二十烷、46#石蜡、48#石蜡、液体石蜡等不同比例的外加剂，以期为建筑围护结构提供合适的相变材料。用差示扫描量热仪(DSC)对几种石蜡混合物的相变温度和相变潜热进行了实验研究。实验结果表明，石蜡混合物的相变温度和相变潜热随其组成而变化。不同质量比的石蜡混合物具有较宽的相变温度范围和较高的相变潜热。因此，通过调整混合比例，石蜡混合物可以应用于不同的储热领域。给出了几种具有合适相变温度和较高相变潜热的石蜡混合物，它们可用于建筑墙体的储热。本文研究结果可为相变材料在墙体中的应用提供参考和依据。
In this paper, several admixtures including n-heptadecane, n-octadecane, n-eicosane, 46#paraffin, 48#paraffin and liquid paraffin are prepared with different mixed proportion, aiming for appropriate phase change materials used in the building envelope. The phase change temperatures and phase change latent heats of several kinds of paraffin mixtures were studied experimentally by differential scanning calorimeter (DSC). The experimental results showed that the phase change temperatures and latent heats of paraffin mixtures change with their composition. Paraffin mixtures in different mass proportions have a wider phase change temperature range and higher phase change latent heat. So the paraffin mixtures can be used in the different thermal storage fields by adjusting the mixed proportion. Several paraffin mixtures with appropriate phase change temperatures and higher phase change latent heats were given, and they can be used in the building wall to storage thermal. The results in this paper can provide references and basis for the application of phase change material in the wall.