不同结构墙体的绝热性能数值分析

针对武汉地区夏季特征气候条件，利用计算传热学的方法对该地区不同结构墙体的绝热性能进行数值分析。在同一温度波连续作用下，墙体外壁面温度与是否采取绝热措施有关，与采用的绝热形式基本无关；在传热系数和热惰性指标相同的情况下，墙体的衰减度越大，墙体内壁面温度越低，节能效果越好；夏热冬冷地区既有建筑外墙节能改造宜采用外保温形式，新建建筑外墙宜采用自保温形式。

Numerical Analysis of Heat-insulating Property of Walls with Different Structures

According to the climatic characteristics of Wuhan in summer, the numerical analysis of heat-insulating property of walls with different structures is carried out by computational heat transfer method. The external surface temperature of the walls is related to whether insulation measures are taken, and it is not related to the ways of insulation under the same continuous temperature wave. The larger the attenuation of the walls, the lower the internal surface temperature, and the better the energy saving effect under the same heat transfer coefficient and thermal inertia indicator. The external insulation of external walls for existing buildings in hot summer and cold winter zone for the energy saving reconstruction should be adopted, and the self insulation of external walls for new buildings should be adopted.