摘要
在提出顶板高于地面附建式地下工程围护结构传热数理模型的基础上,借鉴 ITPE 技术的基本思想,把计算区域划分为八个长方形区域,对每个区域利用分离变量法进行求解。在确定傅立叶系数的过程中,采用热流连续及内外边界条件构造含14N 个线性方程的方程组。在求得传热问题基本解的基础上,通过变化基本解中的各种参数,定量分析了围护结构建筑材料热特性、土壤热特性、地表温度值以及室内空气与壁面的换热系数对围护结构传热过程的影响。
On the basis of providing the mathematical model of heat transfer of roof-on-grade basement, the calculation area is divided into 8 rectangles according to the ITPE （Interzone Temperature Profile Estimation） technology, and the solution is obtained for all the parts by the separation of variables technique. During the solution, the Fourier coefficients are determined by the continuity of the heat flux and boundary conditions. As a result, a system of linear equation group including 14N equations has been obtained. By via of changing the parameters of the solution, the influence of heat characteristics of envelope building material and soil, temperature of earth surface and heat transfer coefficient between air and wall on heat course are quantificational analyzed.
出处
《建筑热能通风空调》
2005年第5期12-15,共4页
Building Energy & Environment
基金
国家人防科研项目资助
