竹材组合墙体构件热湿耦合迁移特性研究.pdfVIP

竹材组合墙体构件热湿耦合迁移竹材组合墙体构件热湿耦合迁移特性特性研究研究 竹材组合墙体构件热湿耦合迁移竹材组合墙体构件热湿耦合迁移特性特性研究研究 湖南大学 王倩 李念平 曾德军 龙激波 摘要：摘要：以多孔介质传热传质学为基础，建立以湿度梯度作为热源或热汇，以温度梯度作为湿源或湿 摘要摘要：： 汇的建筑构件内热湿耦合迁移的动态数学方程。提出传递函数分析方法研究建筑构件内的热湿耦合过 程，利用拉普拉斯变换方法求解耦合方程。并用该方法对竹材组合墙体构件竹板进行了热湿耦合过程的 分析计算，得到了竹板内温度和含湿量的动态分布特性。计算结果和实测值吻合较好，表明本文建立的 数学模型和求解方法合理可信，从而有利于竹结构组合墙体的特性研究。 关键词：关键词：建筑构件 竹板 热湿耦合传递 传递函数 动态分布 关键词关键词：： Study on the Coupled Heat and Moisture Transfer in Bamboo Plywood of Bamboo Composite Wall Hunan University Wang Qian, Li Nianping, Zeng Dejun, Long Jibo Abstract: Based on the heat and moisture transfer through porous media, the dynamic mathematical equations used to coupled heat and moisture transfer in building component were addressed, in which the humidity gradient is considered as the heat source or heat sink ,and the temperature gradient is considered as the moisture source or moisture sink. Meanwhile, an analytical method by means of the transfer function was proposed to study the processes of coupled heat and moisture transfer in building elements. This paper put forward the analytical calculation for the coupled heat and moisture transfer in bamboo plywood of bamboo composite wall, and obtain the transient distributions of temperature and moisture content using the mentioned method. The results agree with the measured data ,and it shows that the mathematical equations and the solving method presented are convincing,which is beneficial to the study on bamboo composite wall. Key words: building component; bamboo plywood; coupled heat and moisture transfer; transfer function; dynamic distributon 引言引言 引言引言 1