摘要
为了解相变墙体传热特点和评价相变材料在成都地区的使用效果,建立相变墙体传热数理模型并通过实验验证模型正确性。在此基础上分析了成都地区夏季工况下相变材料的相变温度、相变区间、相变潜热和导热系数对使用效果的影响,并对参数进行优化。结果表明:适合成都地区夏季墙体内表面的相变材料的相变温度为25～26℃,相变区间为2℃以内,相变潜热与使用效果呈线性关系,导热系数对使用效果影响不大。
In order to summarize the characteristics about phase change wall heat transfer and evaluate the performance when the phase change materials is used in Chengdu, the article established phase change wall mathematics physics model. After the model is verified, it is used to research about the effectiveness of the parameters such as the melting point, the latent heat, temperature range, he coefficient of heat conductivity and the parameters is optimized. The results are the parameters that fit Chengdu zones is that the melting point is 25-26℃, the Phase change interval is within 2℃, and there is a linear relationship between latent heat and the results of actual operation. The coefficient of heat conductivity has little influence on the performance.
出处
《制冷与空调（四川）》
2011年第4期368-373,共6页
Refrigeration and Air Conditioning
基金
建设部科学技术项目(2010-K1-32)"控温降噪相变石膏板的制备
传热特性与应用"
四川省新型墙体材料基金项目(2008K09)"相变墙体的工程热物理关键技术及应用"
关键词
相变墙体
成都地区
参数优化
数值模拟
实验研究
phase change wall
Chengdu zones
parameter optimization
numerical simulation
experimental study
