毛细管辐射冷却顶板供冷性能的数值模拟研究  

Numerical Modeling on Cooling Performance of Capillary Ceiling Radiant Cooling Panel

作　　者：王赟[1] 谢东[1] 莫顺权[1] 廖买利 彭小勇[1] 

机构地区：[1]南华大学城市建设学院,衡阳421001

出　　处：《制冷与空调（四川）》2016年第3期287-290,294,共5页Refrigeration and Air Conditioning

基　　金：南华大学留学归国人员科研启动基金(2013XQD46)

摘　　要：通过定性分析毛细管辐射顶板供冷性能的影响因素,建立毛细管三维稳态传热模型,利用CFD方法得到不同组合参数(冷冻水供水参数、抹灰层状况和毛细管席结构参数)时辐射顶板下的供冷量分布。模拟得到的辐射供冷顶板的供冷量和ASHRAE中经验值相符,误差保持在15%范围内。结果表明供冷量的变化和冷冻水供水温度、抹灰层厚度和管间距呈线性负相关关系。By qualitatively analyzing the impact of correlation factors on panel performance, three-dimensional numerical computations on heat transfer of capillary mats for steady-state were built numerically. CFD method is used to attain the cooling capacities at the bottom surface of radiant cooling ceiling panel with the combination of influencing parameters, including chilled water inlet parameters, conditions of gypsum plaster and capillary mats structural parameters. Numerical cooling capacities were in good agreement with empirical values reported by ASHRAE. The error was within the region of 15%. The simulation results show that cooling capacities was negatively linear correlation with temperature of chilled inlet water, covering thickness and tube spacing.

关 键 词：毛细管 数值模拟 冷却顶板 供冷性能 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]