A Parametric Investigation on Energy-Saving Effect of Solar Building Based on Double Phase Change Material Layer Wallboard

文献类型： 外文期刊

第一作者： Tong, Xiaoxiao

作者： Tong, Xiaoxiao;Tong, Xiaoxiao;Xiong, Xingyao

作者机构：

期刊名称：INTERNATIONAL JOURNAL OF PHOTOENERGY （ 影响因子：2.113； 五年影响因子：2.077 ）

ISSN： 1110-662X

年卷期： 2018 年

页码：

收录情况： SCI

摘要： In order to further understand the thermal performance of the double phase change material (PCM) layer wallboard, the wallboard model was established and a comprehensively numerical parametric investigation was carried out. The variation laws of inner wall temperature rise and the heat flux transferred under different phase transition temperatures and thermal conductivities are presented in detail. The main results show that the temperature of the inside wall for case 2 can be reduced by about 1.5 K further compared to that for case 1. About 83% of the heat transferred from the outside is absorbed by the PCM layer in case 2. Reducing the phase transition temperature of the PCM layer can decrease the inside wall temperature to a certain extent in the period of high temperature. The utilization of double PCM layers shows much more performance compared to that of the single PCM layer case, and the temperature of the inside wall can be reduced by 2 K further.

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