| 微细管碳纳米管悬浮液强制对流换热实验研究 |
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| 引用本文： | 朱建军,王建立,李震,张兴.微细管碳纳米管悬浮液强制对流换热实验研究[J].工程热物理学报,2011(7). |
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| 作者姓名： | 朱建军 王建立 李震 张兴 |
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| 作者单位： | 热科学与动力工程教育部重点实验室清华大学工程力学系; |
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| 基金项目： | 国家自然科学基金资助项目(No.50730006;No.50906042) |
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| 摘 要： | 测量了水平微细圆管内蒸馏水和不同质量浓度的水基多壁碳纳米管纳米流体在低雷诺数下的强制对流换热特性。实验结果表明,与蒸馏水相比,纳米流体的对流换热系数显著提高,且随质量浓度和管内雷诺数的增大而增大;并且研究了流体管内流动阻力特性,得到的泊肃叶数f·Re值随着雷诺数的变化不明显,但纳米流体的f·Re值要明显小于纯水。
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| 关 键 词： | 纳米流体 微细管 多壁碳纳米管 强制对流 强化换热 |
Experimental Study on Forced Convective Heat Transfer of CNT Nanofluids in Microtube |
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| ZHU Jian-Jun WANG Jian-Li LI Zhen ZHANG Xing.Experimental Study on Forced Convective Heat Transfer of CNT Nanofluids in Microtube[J].Journal of Engineering Thermophysics,2011(7). |
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| Authors: | ZHU Jian-Jun WANG Jian-Li LI Zhen ZHANG Xing |
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| Institution: | ZHU Jian-Jun WANG Jian-Li LI Zhen ZHANG Xing (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Measurements of forced convective heat transfer characteristics for distilled water and aqueous suspensions of multi-walled carbon nanotubes(CNT nanofluids)with different mass concentration are performed in a horizontal stainless circular tube.The experimental results show that the convective heat transfer coefficient of CNT nanofluids is significantly enhanced compared with distilled water,and increases with increasing mass concentration and Reynolds number;the flow resistance characteristics are also inve... |
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| Keywords: | nanofluids micro-tube multi-walled carbon nanotubes forced convective heat transfer |
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