| 扁平管管内负压冷凝流动阻力特性研究 |
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| 引用本文： | 顾红芳,王海军,翁羽,刘万里,李会利. 扁平管管内负压冷凝流动阻力特性研究[J]. 工程热物理学报, 2010, 31(1) |
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| 作者姓名： | 顾红芳 王海军 翁羽 刘万里 李会利 |
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| 作者单位： | 1. 西安交通大学动力工程多相流国家重点实验室,陕西西安,710049
2. 哈尔滨空调有限公司,黑龙江哈尔滨,150010 |
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| 摘 要： | 本文采用试验的方法对扁平管内的负压蒸汽冷凝过程进行了研究。研究结果表明,这类扁管的特殊结构使得管内的蒸汽充满度高,冷凝液占据整个流动截面的份额小,流动顺利,阻力小,是很好的有利于冷凝液流动的管型。研究结果给出了这类扁平管的管内冷凝流动摩擦阻力的计算方法,为这类管型在空冷凝汽器的应用提供了设计依据。
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| 关 键 词： | 冷凝 真空 准则关联 含汽率 |
SUBATMOSPHERIC CONDENSATION RESISTANCE CHARACTERISTICS IN A FLAT TUBE |
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| GU Hong-Fang,WANG Hai-Jun,WENG Yu,LIU Wan-Li,LI Hui-Li. SUBATMOSPHERIC CONDENSATION RESISTANCE CHARACTERISTICS IN A FLAT TUBE[J]. Journal of Engineering Thermophysics, 2010, 31(1) |
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| Authors: | GU Hong-Fang WANG Hai-Jun WENG Yu LIU Wan-Li LI Hui-Li |
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| Affiliation: | 1.Xi'an Jiaotong University;Xi'an 710049;China;2.Harbin Are Conditioning Co.;Harbin 150010;China |
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| Abstract: | This article uses an experimental method to research a subatmospheric condensation process in a flat tube.This kind of structure causes highly steam fullness in the tube,smaller rate of liquor-condensate flow section,convenient flow condition and smaller resistance.This structure has very good performance in condensate flow condition.A series of formula are given to calculate the flow resistances in this kind of tube,and give design basis of air cooling condenser using this kind of flat tube. |
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| Keywords: | condensation vacuum criterion relevancy void fraction |
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