摘要
将石蜡相变储能微囊与石膏复合制备了复合建材,检测了复合建材墙体温度对环境温度变化的响应,结果表明,复合建材的温度变化响应曲线达到峰值的时间较常规建材滞后,存在温度相对稳定阶段。通过简化复合建材物理模型建立了传热方程,得到了仿真墙体内层壁温对外层壁温的响应特性,结果表明,常规建材内层壁面温度对外层壁面温度变化的响应基本无滞后现象,且不存在温度相对恒定阶段,而复合建材内层壁面温度对外层壁面温度变化的响应有滞后现象,且存在温度相对恒定阶段,最高温度也较低。由此可知,将相变储能材料引入到建材中,可达到降低建筑物内部温度、减小建筑物空调制冷系统容量的目的,为降低建筑制冷能耗和费用提供了良好途径。
The complex building material is prepared by mixing the paraffin phase change power storage microcapsules. The testing of the board temperature responding to the environment temperature change shows that there is a lag of the response curve of the complex building material compared with the normal material, and the complex material also has a relatively stabilization stage of temperature. After simplifying the physical model of the complex material, and establishing the heat transfer equation, the simulation results of the inner layer surface temperature in response to the outside layer surface temperature indicate that there is no lag of the inner layer surface temperature in response to the outside layer surface temperature change of the normal building material, and no relatively temperature stabilization stage. But the complex building material has a reverse results, and the maximum temperature is also lower. Thereat, it will decrease the inner temperature of the building and reduce the capability of the buildings＇ air conditioner refrigeration system. If the phase change power storage materials are introduced into the building materials, and it also supplies a good approach to reduce the building refrigeration power consumption and charge.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2009年第22期83-86,共4页
Materials Reports
基金
广东省工业攻关项目基金资助项目(2005B10301051)
关键词
复合建材
相变材料
温度响应
仿真
complex material, phase change materials, temperature response, simulation
