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实体墙热工性能,过去多用简化计算和试验房测定法加以评价.但这些方法所得数据,前者不够精确,后者则有较大的局限性,同时也会带来计算和测量方面的误差.本文用计算机直接求解墙体导热微分方程,便可获得在任意外界条件作用下的墙体内表面温度.这样便可较精确地、方便地评价各种材质组成的墙体的热工性能.又,本课题还建立了过去无法计算的通风墙体的数学模型和计算程序.因此这是一项开拓型的工作.用数值计算法取代传统方法研究建筑热工性能,其前景是令人鼓午的.
The thermal performance of solid walls has been evaluated in the past using simplified calculations and laboratory test methods. However, the data obtained by these methods are not accurate enough, and the latter are more limited. At the same time, they also bring errors in calculation and measurement. In this paper, direct calculation of wall thermal differential equations can obtain the surface temperature of the wall under any external conditions. This can be used to accurately and conveniently evaluate the thermal performance of walls made of various materials. This topic also established mathematical models and calculation procedures for ventilated walls that could not be calculated in the past. Therefore, this is an open-ended type of work. The use of numerical methods instead of traditional methods to study the thermal performance of buildings is promising. of.