| 水蒸气在内插螺旋丝竖直圆管内流动凝结的实验研究 |
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| 引用本文： | 王中铮,刘可心.水蒸气在内插螺旋丝竖直圆管内流动凝结的实验研究[J].化工学报,1996,47(1):124-128. |
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| 作者姓名： | 王中铮 刘可心 |
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| 作者单位： | 天津大学热能工程系!天津300072,天津大学热能工程系!天津300072,天津大学热能工程系!天津300072,天津大学热能工程系!天津300072,天津大学热能工程系!天津300072 |
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| 摘 要： | 引言螺旋丝是一种有效的传热强化元件，而且安装简便，使用灵活，Chiou〔1〕最先进行了研究．此后，不少学者进行了螺旋丝用于水平管内、水平管外的凝结换热及油类介质传热强化的研究，但对于竖直管内插螺旋丝的凝结换热的研究到目前还是空白．由于管内凝结换热的复杂性，对于换热规律的研究基本是以实验研究为主．其中较有代表性的是Shah〔2〕在综合了474个实验点基础上提出的适用于水平管、竖直管和倾斜管的管内凝结换热通用关联式．在理论解方面，较早且使用较为方便的是Carpenter和Colburn〔3〕提出的计算式．至于凝结换热强化管的传…
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| 关 键 词： | 凝结换热 螺旋丝 竖直圆管 水蒸气 换热器 传热 |
EXPERIMENTAL STUDY ON STEAM FLOW CONDENSATION IN VERTICAL TUBE WITH A SPIRAL WIRE |
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| Wang Zhongzheng,Liu Kexin,Guo Xinchuan,Li Xiaopeng,Li Rujun.EXPERIMENTAL STUDY ON STEAM FLOW CONDENSATION IN VERTICAL TUBE WITH A SPIRAL WIRE[J].Journal of Chemical Industry and Engineering(China),1996,47(1):124-128. |
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| Authors: | Wang Zhongzheng Liu Kexin Guo Xinchuan Li Xiaopeng Li Rujun |
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| Affiliation: | Wang Zhongzheng,Liu Kexin,Guo Xinchuan,Li Xiaopeng,Li Rujun(Thermal Energy Engineering Departmern,Tianjin University,Tianjin ) |
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| Abstract: | An experimental study was made for steam condensation in a vertical tube with a spiral wire based on the turbulent-turbulen heat transfer model of steam-1iquid f1ow proposed by the authors,and data correlation was obtained.The distribution of steam content along flow length was calculated ad the influences of spiral wire,steam velocity,steam pressure and codensate film on condensation were analysed.The enhancement of condensation by the spiral wire was also demonstrated. |
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| Keywords: | condensation heat transfer spiral wire vertical tube |
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