建筑环境设计模拟分析软件DeST 第11讲 与地面相邻区域动态传热问题的处理  

Building environment design simulation software DeST(11): treatment of dynamic heat transfer through underground zone

作　　者：谢晓娜[1] 宋芳婷[1] 张晓亮[1] 刘烨[1] 江亿[1] 

机构地区：[1]清华大学

出　　处：《暖通空调》2005年第6期55-63,共9页Heating Ventilating & Air Conditioning

摘　　要：分析了与地面相邻区域传热问题的特点,介绍了国内外目前关于此问题的研究状况和其他模拟软件的处理方法。分析了地下传热的物理过程,首先对室外地表温度进行谐波分析,据此给出求解室外地表温度动态变化部分作用在地下区域而引起的室内地板表面热流的方法;然后研究了室内地板表面温度变化引起的该表面热流的变化,并提出了等效平板的概念,用以解决室内外的稳态传热及室内温度动态变化时地下区域的蓄热问题。上述算法应用于建筑模拟软件DeST3.0中。最后通过一个实例给出了这种计算方法的过程与结果。Analyses the characteristics of the heat transfer through underground zone between building and outside. Reviews current literatures and limits and problems of current simulation software thereof. Analyses the physical processes of the heat transfer. Firstly,dividing the temperature of outdoor ground surface into some sine waves,discusses how to get the indoor floor surface heat flow rate caused by these sine waves. Secondly,presents the variation of the heat flow of indoor floor surface with the surface dynamic temperature,and presents the concept of equivalent slab in order to solve the flowing problem: steady heat transfer between indoor and outdoor ground surface,and the storage ability of underground when indoor temperature varies. The above calculation method is used in building environment simulation software—DeST3.0. Finally,presents a case solution and the result.

关 键 词：模拟分析软件 建筑环境设计 动态传热 DeST 邻区 地面 模拟软件 地表温度 表面热流 动态变化 处理方法 研究状况 物理过程 谐波分析 温度变化 室内温度 稳态传热 计算方法 国内外 地下 室内外 室外 地板 

分 类 号：TU111[建筑科学—建筑理论]