| 湍流环形通道热泳脱除可吸入颗粒物技术研究 |
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| 引用本文： | 周涛,杨瑞昌,赵磊.湍流环形通道热泳脱除可吸入颗粒物技术研究[J].环境污染治理技术与设备,2006,7(3):134-137. |
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| 作者姓名： | 周涛 杨瑞昌 赵磊 |
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| 作者单位： | [1]华北电力大学（北京）动力工程系,北京102206 [2]清华大学热能工程系,北京100084 |
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| 基金项目： | 国家“973”重点基础研究发展规划项目于项目（2002-CB211604） |
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| 摘 要： | 湍流中PM2．5粒子的热泳沉积是国际上研究热门课题。但目前单纯热泳沉积效率也不过20％左右。依据热泳基本原理，设计了一种新型湍流方环形双壁冷却式通道。计算表明，该类型通道比一般单管通道有着较高的可吸入颗粒物脱除效率。同时，利用湍流的沉积效率，加上热泳沉积效率。可以达到较高的总泳沉积效率。通过结构设计，可以提高可吸入颗粒物的脱除效率，是值得进一步探索的新路子。
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| 关 键 词： | 双壁冷却 热泳 可吸入颗粒物 湍流 沉积效率 |
| 收稿时间： | 06 30 2004 12:00AM |
Technical study on removing inhaled PM 2.5 by using thermophoresis in annular channel with turbulent flow |
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| Zhou Tao,Yang Ruichang, Zhao Lei.Technical study on removing inhaled PM 2.5 by using thermophoresis in annular channel with turbulent flow[J].Techniques and Equipment for Environmental Pollution Control,2006,7(3):134-137. |
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| Authors: | Zhou Tao Yang Ruichang Zhao Lei |
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| Institution: | 1. Department of Power Engineering, North China Electric Power University, Beijing 102206 ; 2. Department of Thermal Engineering,Tsinghua University, Beijing 100084 |
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| Abstract: | The thermophoretic deposition of PM 2.5 in turbulent flow is an international research hotspot. But, the usual thermophorertic deposition of PM 2.5 in turbulent flow is about 20% or so. A kind of new turblent flow in annular square channel with two cooled wall was designed on basic thermophoresis principle. The calculation indicates that this kind of channel has higher the thermophoretic deposition efficiency for removing inhaled PM 2.5 than usual single tube channel. At meantime, the total deposition efficiency can reach very high through combination of the thermophoretic deposition efficiency with the turbulent deposition efficiency. It is worth more exploring new way that the deposition efficiency for removing inhaled PM 2.5 is enhanced by using configuration design. |
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| Keywords: | two cooled walls thermophoresis inhaled particle matter turbulence deposition efficiency |
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