测试分析了有机脂肪酸二元复合相变材料在低共熔点质量比下的DSC曲线.通过Gambit软件建立了含有相变材料的房屋内壁结构,并与实际房屋结构对比分析了相变材料在室内环境温度调节中的应用.结果表明:癸酸/月桂酸和癸酸/硬脂酸2种相变材料更适合应用于昼夜温差较大的区域,而月桂酸/硬脂酸类的相变材料更适用于温度较高区域;融入相变材料的膨胀珍珠岩具有更高的比热容和更低的潜热;当加入相变材料后模型室内温度场波动平缓,其内壁与普通墙体的最大温差为2.5℃,表明该相变材料具有较强的蓄热能力.%This paper tested and analyzed the DSC curve of the organic fatty acid binary composite phase change material at the eutectic point mass ratio. The phase change material containing inner wall structure of house was established by Gambit soft-ware,and the application of phase change material in the indoor environment temperature regulation was compared with the actual house structure. The results showed that the two phase change materials of decanoic acid/lauric acid and decanoic acid/stearic acid are more suitable for the region with larger temperature difference between day and night,while the phase-change material of lau-ric acid/stearic acid is more suitable for the region with higher temperature. The expanded perlite with phase change material has higher specific heat capacity and lower latent heat,when the phase change material is added,the interior temperature field in the model room fluctuates gently,and the average wall temperature of the phase change wall is 2.5 ℃ lower than that of the ordinary wall, indicating that the phase change material has a strong ability of heat accumulation.
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