| 不同位置辐射板的供冷性能分析 |
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| 引用本文： | 高志宏,刘晓华,江亿.不同位置辐射板的供冷性能分析[J].东南大学学报,2010,26(2):364-367. |
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| 作者姓名： | 高志宏 刘晓华 江亿 |
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| 作者单位： | 清华大学建筑学院,北京,100084 |
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| 基金项目： | The National Natural Science Foundation of China（No.50778094） |
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| 摘 要： | 分析了辐射板布置位置对供冷性能的影响,建立了一种对流与辐射耦合的CFD模拟模型.通过模拟计算,得到不同辐射板位置和室内热源状况下辐射板供冷能力及室内热环境的分布状况;该模拟结果与真实平台实验结果基本吻合.模拟结果表明：当室内热源温度较低时,对流换热量为主导因素,因此应将辐射板放置于侧墙或天花板处;当室内热源温度较高时,辐射板与热源的辐射换热量增大,辐射换热量为主导因素,因此应将辐射板布置在靠近高温热源的位置.
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| 关 键 词： | 辐射板 辐射板位置 供冷能力 |
Cooling performance analysis of radiant panel at different positions |
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| Gao Zhihong Liu Xiaohua Jiang Yi.Cooling performance analysis of radiant panel at different positions[J].Journal of Southeast University(English Edition),2010,26(2):364-367. |
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| Authors: | Gao Zhihong Liu Xiaohua Jiang Yi |
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| Institution: | Gao Zhihong Liu Xiaohua Jiang Yi(School of Architecture,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The influence of the panel position on the cooling performance of a radiant panel is analyzed.The coupled simulation of convection and radiation is set up by a computational fluid dynamics（CFD）method.The simulations with different panel positions and different indoor heat sources are used to calculate the cooling capacity of the radiant panel and the indoor thermal environment.The simulation results are in good agreement with the experimental results.The results show that when the indoor heat source temperature is low,the convective heat flux is the main influence factor of the cooling capacity and the radiant panel should be placed on the wall or on the ceiling.Otherwise,when the indoor heat source temperature is high,the radiation heat flux is the main factor and the radiant panel should be placed as near to the heat sources as possible. |
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| Keywords: | radiant panel panel position cooling capacity |
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