| 纳米制冷剂管内流动沸腾换热特性 |
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| 引用本文： | 彭浩,丁国良,姜未汀,胡海涛,高屹峰.纳米制冷剂管内流动沸腾换热特性[J].化工学报,2008,59(Z2):70-75. |
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| 作者姓名： | 彭浩 丁国良 姜未汀 胡海涛 高屹峰 |
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| 作者单位： | 上海交通大学制冷与低温工程研究所，上海 200240; 国际铜业协会（中国）上海代表处，上海 200020 |
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| 基金项目： | 教育部新世纪人才计划(NCET-05-0403)~~ |
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| 摘 要： | 研究了CuO-R113纳米制冷剂在水平直光管内的流动沸腾换热特性。实验测试段长度1.5 m、外径9.52 mm。实验工况的质量流率为100～200 kg•m-2•s-1,热通量为3.08～6.16 kW•m-2, 入口干度为0.2～0.7，纳米颗粒质量分数为0～0.5%。结果表明：CuO-R113纳米制冷剂的传热系数高于纯R113制冷剂的传热系数。纳米颗粒的加入，强化了制冷剂管内流动沸腾换热。质量流率为100、150、200 kg•m-2•s-1的情况下，传热系数分别最大提高了29.7%、22.7%、25.6%。
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| 关 键 词： | 纳米制冷剂 光管 流动沸腾 换热 |
| 收稿时间： | 2008-10-8 |
| 修稿时间： | 2008-10-8
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Heat transfer characteristics of nanorefrigerant flow boiling inside tube |
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| PENG Hao,DING Guoliang,JIANG Weiting,HU Haitao,GAO Yifeng.Heat transfer characteristics of nanorefrigerant flow boiling inside tube[J].Journal of Chemical Industry and Engineering(China),2008,59(Z2):70-75. |
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| Authors: | PENG Hao DING Guoliang JIANG Weiting HU Haitao GAO Yifeng |
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| Affiliation: | PENG Hao~1 DING Guoliang~1 JIANG Weiting~1 HU Haitao~1 GAO Yifeng~2 (1 Institute of Refrigeration , Cryogenics Engineering,Shanghai Jiao Tong University,Shanghai 200240,China,2 International Copper Association,Shanghai 200020,China) |
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| Abstract: | Experimental study on heat transfer characteristics of nanorefrigerant CuO-R113 flow boiling inside a horizontal smooth tube with total length 1.5m and outside diameter 9.52mm was performed.The test conditions were as follows: the mass flux is from 100 to 200 kg•m-2•s-1，the heat flux is from 3.08 to 6.16 kW•m-2， the inlet vapor quality is from 0.2 to 0.7, the mass fraction of nanoparticles is from 0 to 0.5%.The experimental results showed that the heat transfer coefficient of nanorefrigerant CuO-R113 is larger than that of pure refrigerant R113, the flow boiling heat transfer is enhanced by adding nanoparticles.When mass flux is 100 kg•m-2•s-1, heat transfer coefficient increases 29.7% maximally.When mass flux is 150 kg•m-2•s-1, heat transfer coefficient increases 22.7% maximally.When mass flux is 200 kg•m-2•s-1, heat transfer coefficient increases 25.6% maximally. |
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| Keywords: | nanorefrigerant smooth tube flow boiling heat transfer |
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