| 旋转多通道烘缸传热特性的数值模拟分析 |
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| 引用本文： | 严彦,董继先,宋智伟. 旋转多通道烘缸传热特性的数值模拟分析[J]. 中国造纸, 2020, 39(2): 61-64 |
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| 作者姓名： | 严彦 董继先 宋智伟 |
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| 作者单位： | 1.西安工程大学机电学院，陕西西安，710048;2.陕西科技大学机电工程学院，陕西西安，710021 |
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| 基金项目： | 国家自然科学基金项目 51375286;陕西省教育厅科研计划项目 19JK0374;西安工程大学博士科研启动金 BS201807国家自然科学基金项目（51375286）；陕西省教育厅科研计划项目（19JK0374）；西安工程大学博士科研启动金（BS201807）。 |
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| 摘 要： | 多通道烘缸可有效排除烘缸通道内的冷凝水,从而降低能耗,提高干燥效率。但是多通道烘缸旋转速度较高,很难通过实验方式对烘缸的冷凝传热过程进行测量。因此,本研究应用Fluent软件中的VOF两相流模型对多通道烘缸中蒸汽冷凝传热特性进行了数值模拟。以多通道烘缸的旋转速度作为变量,得出了冷凝水含量、传热系数及流动压降的变化规律。结果表明,随烘缸转速升高,通道内冷凝水量增多,传热系数及压降也增大,但是增幅趋缓。
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| 关 键 词： | 多通道烘缸 冷凝传热 旋转速度 数值模拟 |
| 收稿时间： | 2019-11-09 |
Numerical Simulation on Condensation Heat Transfer of Multi-channel Cylinder Dryer |
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| YAN Yan,DONG Jixian,SONG Zhiwei. Numerical Simulation on Condensation Heat Transfer of Multi-channel Cylinder Dryer[J]. China Pulp & Paper, 2020, 39(2): 61-64 |
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| Authors: | YAN Yan DONG Jixian SONG Zhiwei |
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| Affiliation: | (College of Mechanical&Electrical Engineering,Xi’an Polytechnic University,Xi’an,Shaanxi Province,710048;College of Mechanical&Electrical Engineering,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021) |
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| Abstract: | Condensation heat transfer in multi-channel cylinder dryer was numerically simulated with Fluent software using VOF two-phase flow model. The rotational speed was chosen as variable. The condensate volume, condensation heat transfer coefficient and pressure drop were obtained. The simulation result showed that the condensate volume, condensation heat transfer coefficient and pressure drop were increased with the increasing of rotational speed, but the increase rate tended to decrease. |
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| Keywords: | multi-channel cylinder dryer condensation heat transfer rotational speed numerically simulate |
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