| 倾斜状态下热虹吸管冷凝段流动传热研究 |
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| 引用本文： | 陶汉中,张红,庄骏.倾斜状态下热虹吸管冷凝段流动传热研究[J].太阳能学报,2008,29(7). |
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| 作者姓名： | 陶汉中 张红 庄骏 |
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| 作者单位： | 南京工业大学能源学院,南京,210009 |
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| 基金项目： | 国家高技术研究发展计划(863)项目 |
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| 摘 要： | 建立了太阳能热水装置用的热虹吸管在倾斜状态下冷凝段流动传热模型,模型考虑了倾斜角度和界面剪切力对冷凝液膜的影响.分析结果表明,在小管径情况下,特别是在小倾斜角度工况下,界面剪切力的作用不能忽略.界面剪切力对流动冷凝的作用主要表现在使周向的液膜厚度变得均匀.计算模型还考虑了过冷度对冷凝段有效传热长度的影响,计算结果与经典的经验公式和试验数据相比较,吻合良好.
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| 关 键 词： | 热虹吸管 回流冷凝 界面剪切力 |
HEAT-TRANSFER ANALYSIS FOR CONDENSING FILM FLOW INSIDE AN INCLINED THERMOSYPHON |
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| Tao Hanzhong Zhang Hong Zhuang Jun.HEAT-TRANSFER ANALYSIS FOR CONDENSING FILM FLOW INSIDE AN INCLINED THERMOSYPHON[J].Acta Energiae Solaris Sinica,2008,29(7). |
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| Authors: | Tao Hanzhong Zhang Hong Zhuang Jun |
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| Affiliation: | Tao Hanzhong Zhang Hong Zhuang Jun (School of Energy,Nanjing University of Technology Nanjing 210009,China) |
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| Abstract: | An analytical model was proposed for flow condensation process inside an inclined solar water heating-used thermosyphon,in which inclination degree to horizon,interfacial shear along axial direction effected on the condensate film layer are simultaneously accounted.The analysis results shown that the effect of interfacial shear stress cannot be ne- glected for a small diameter thermosyphon,especially for a small inclination degree to horizon.The interfacial shear influ- ences the flow condensation mainly by... |
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| Keywords: | thermosyphon film condensation interfacial shear stress |
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