摘要
基于正交设计方法利用FLUENT软件模拟了相变石膏板的导热系数、相变半径、相变潜热、相变温度对复合相变混凝土砌块外墙房间热舒适性的影响,得到相变石膏板的最优方案,并与空心砌块房间和EPS外保温房间进行了对比。研究结果表明:导热系数、相变半径越小,相变潜热越大,复合相变混凝土砌块外墙房间越舒适;冬夏季工况下,相变外墙中相变石膏板的优化位置均为砌块内孔;优化后的复合相变混凝土砌块外墙房间的热舒适性优于空心砌块房间和EPS外保温房间。
The influence of thermal conductivity, phase change radius, phase change latent heat and phase change temperature of PCPB on thermal comfort of room with phase change concrete block was simulated by FLUENT based on orthogonal design. As a result, the optimal scheme was obtained and then compared with hollow concrete block and EPS external thermal insulation respectively. It was concluded that the smaller thermal conductivity and phase change radius were, the bigger the latent heat and the comforter the room would be. The best position of PCPB was the inside hole of building blocks both in winter and summer; the thermal comfort of optimized room with phase change composite concrete exterior wall was better than hollow concrete block and EPS.
出处
《建筑科学》
CSCD
北大核心
2016年第8期73-78,共6页
Building Science
基金
国家自然科学基金项目"相变围护结构热特性与改进-兼容型相变传热数学模型研究"(51508232)
江苏省自然科学基金项目"改进型相变传热数学模型及相变复合墙体热性能研究"(BK20150521)
江苏省博士后科学基金项目"相变围护结构热特性与改进-兼容型相变传热数学模型研究"(1501106B)
江苏大学高级人才科研启动基金项目"复合相变材料建筑围护结构热特性研究"(15JDG049)
关键词
正交设计
相变混凝土砌块
热舒适性
焓法模型
orthogonal design, phase change concrete block, thermal comfort, enthalpy model
