【摘要】 建立了室外空气温度发生周期性变化情况下的复合墙体一维非稳态传热物理模型及数学模型 ,推导出复合墙体温度分布及热流密度分布表达式 .以严寒地区复合墙体为例 ,在考虑建筑墙体内温度波衰减和时间延迟的前提下 ,计算了复合墙体各层界面温度及外表面热流分布 ,结果表明 ,影响复合墙体温度衰减的主要因素是各层墙体的热扩散率、波动周期和位移更多还原

【Abstract】 We aim at the establishment of one-dimensional physical and math model in the multiplayer walls. Heat flux and temperature distribution expr ession has been reduced and analyzed. Given an example of multiplayer walls in t he cold region, heat flux and temperature distribution are derived when temperat ure wave is attenuation and time is delayed. The result shows that the most domi nant factor is heat diffuse velocity, wave period and displacement.更多还原