辐射地板热阻的实验和模拟研究  

SIMULATION AND EXPERIMENT RESEARCH ON THE HEAT RESISTANCE OF RADIANT FLOOR

作　　者：张伦[1] 刘晓华[1] 高志宏[1] 江亿[1] 

机构地区：[1]清华大学建筑技术科学系,北京100084

出　　处：《太阳能学报》2012年第5期860-867,共8页Acta Energiae Solaris Sinica

基　　金：国家"十一五"科技支撑计划(2006BAJ01A08);华南理工大学亚热带建筑科学国家重点实验室(2008KA06)

摘　　要：建立辐射地板的传热模型,通过有限差分的方法,模拟大理石辐射地板、塑胶地面辐射地板的传热特性,计算两种辐射地板的等效热阻以及温度分布情况,辐射地板的等效热阻不受工作环境的影响。通过实验测试结果验证辐射地板热阻的数值模拟结果,误差约为10%。利用辐射板的热阻,计算分析在不同工作环境中辐射板的供冷量,辐射板的供冷量为20～50W/m2,太阳辐射会使辐射板的供冷量迅速上升。The heat conduct model of radiant floor to simulate the characteristics of marble surface and plastic surface radiant floor was established. Equivalent heat resistance and temperature distribution were calculated and the conclusion that the equivalent heat resistance will not change according to the different environment condition, and then the simulated heat resistance is varified by experiment. The cooling capacity of radiant floor under different conditions was calculated using the heat resistance by the end.

关 键 词：辐射地板 热阻 温度分布 供冷量 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]