| 水蒸汽在水平二维微肋管内的凝结换热 |
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| 引用本文： | 辛明道,王志军.水蒸汽在水平二维微肋管内的凝结换热[J].上海交通大学学报,1999,33(8):1026-1028. |
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| 作者姓名： | 辛明道 王志军 |
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| 作者单位： | 重庆大学,工程热物理研究所,重庆,400044 |
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| 摘 要： | 探讨了微肋高度对水平二维微肋管内凝结换热和流动阻力的影响．采用水蒸汽为凝结介质，进行了三种不同肋高度的管内凝结换热实验．结果表明，二维微肋管内凝结的平均换热系数α随肋高的增加明显增大．和光管比较，α增加２８％～２１０％，这时阻力的增加仅为４％～５３％．
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| 关 键 词： | 凝结 水蒸汽 水平管 二维内微肋管 |
Condensation Heat Transfer for Steam in Horizontal Two-Dimensional Micro-Fin Tube |
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| XIN Ming-dao,WANG Zhi-jun.Condensation Heat Transfer for Steam in Horizontal Two-Dimensional Micro-Fin Tube[J].Journal of Shanghai Jiaotong University,1999,33(8):1026-1028. |
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| Authors: | XIN Ming-dao WANG Zhi-jun |
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| Abstract: | The effect of microfin height on condensation heat transfer and flow resistance in horizontal two dimensional microfin tubes was investigated. Experiment of condensation heat transfer in microfin tubes was conducted at 3 types of different microfin heights and steam is used as condensation medium. The results show that the average heat transfer coefficient, , obviously increases with increasing of the microfin height. As compared with the smooth tube, the increase of is from 28% to 210% with the increase of the microfin height, while the increase of flow resistance is only 4% to 53%. |
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| Keywords: | condensation steam horizontal tube two dimensional inner microfin tube |
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