| 纳米流体在圆管型丝网热管换热强化中的应用 |
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| 引用本文： | 舒涛,刘振华.纳米流体在圆管型丝网热管换热强化中的应用[J].航空动力学报,2008,23(10):1795-1799. |
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| 作者姓名： | 舒涛 刘振华 |
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| 作者单位： | 上海交通大学 机械与动力工程学院, 上海 200240 |
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| 摘 要： | 对纳米流体强化水平放置的丝网热管换热特性进行了实验研究.实验工质为水基CuO纳米流体,颗粒平均粒径50 nm,质量分数为0.5%～2.0%.实验在定压下进行,压力为7.45～19.97 kPa.结果显示,纳米流体替代去离子水后,热管换热性能大幅度提高.蒸发段换热系数提高了170%～410%.运行压力对热管换热特性有明显影响.压力越小,热管换热的强化越显著.热管换热特性随纳米流体质量分数的增加而提高,到达一定值后开始随之下降,最佳质量分数在1.0%左右.
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| 关 键 词： | 纳米流体 热管 强化传热 丝网 |
| 收稿时间： | 9/28/2007 4:51:31 PM |
| 修稿时间： | 2007/12/27 0:00:00 |
Application of nanofluid in thermal performance enhancement of horizontal screen heat pipe |
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| SHU Tao and LIU Zhen-hua.Application of nanofluid in thermal performance enhancement of horizontal screen heat pipe[J].Journal of Aerospace Power,2008,23(10):1795-1799. |
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| Authors: | SHU Tao and LIU Zhen-hua |
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| Institution: | School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | The heat transfer characteristic of horizontal screen heat pipe using nanofluid was studied experimentally.The nanofluid consists of water and CuO nanoparticles having a mean diameter of 50 nm,the mass concentration of nanofluid ranges from 0.5% to 2.0%,and the operational pressures of the heat pipe varies from 7.45 kPa to 19.97 kPa.The experimental results show that the effect of the particle concentration on both evaporating and condensing heat transfer coefficients and the maximum heat flux is very signi... |
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| Keywords: | nanofluid heat pipe heat transfer enhancement screen |
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