| 雨滴型凹坑流道换热板流动换热性能与优化 |
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| 引用本文： | 郭志强,黄 丹,曹海亮,张 楠,尹德荣.雨滴型凹坑流道换热板流动换热性能与优化[J].热科学与技术,2018,17(2):124-131. |
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| 作者姓名： | 郭志强 黄 丹 曹海亮 张 楠 尹德荣 |
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| 作者单位： | 郑州大学化工与能源学院;河南省锅炉压力容器安全检测研究院 |
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| 基金项目： | 国家自然科学基金项目（51176174） |
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| 摘 要： | 基于WORKBENCH,研究了雨滴型凹坑流道换热板的流动换热性能,并对其进行多目标优化研究。以努塞尔数Nu,阻力系数f,综合传热性能η为目标函数,考察了凹坑的前缘半径R_1,后缘半径R_2,凹坑深度H_d,凹坑间距P等结构参数对雨滴型凹坑流道各优化目标的影响。结果表明:雨滴型凹坑流道内的流动分离和涡流碰撞增强了湍流强度,有效强化了传热,并且高传热区出现在凹坑后缘。雨滴型凹坑板的Nu是平板的1.9~4.5倍,阻力系数是平板的2.3~3.5倍,η可达1.42~3.04。凹坑深度H_d对Nu、f、η影响都比较显著,而凹坑间距P对这三者的影响都比较小,当3.5mmH_d4.5mm且25.0mmR_130.0mm时有较好的η。通过对雨滴型凹坑板在1 358≤R_e≤6 926的数据结果进行关联,得到了凹坑板流动换热的准则关系式。
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| 关 键 词： | 雨滴型凹坑 板式换热器 强化传热 多目标优化 数值分析 |
| 收稿时间： | 2017/4/27 0:00:00 |
| 修稿时间： | 2017/4/27 0:00:00 |
Optimization and Heat Transfer Performance of Plate heat exchanger with Rain-drop Dimples |
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| GUO Zhiqiang,HUANG Dan,CAO Hailiang,Zhang Nan and YIN Derong.Optimization and Heat Transfer Performance of Plate heat exchanger with Rain-drop Dimples[J].Journal of Thermal Science and Technology,2018,17(2):124-131. |
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| Authors: | GUO Zhiqiang HUANG Dan CAO Hailiang Zhang Nan and YIN Derong |
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| Affiliation: | School of chemical and engineering and energy,Zhengzhou University,Henan Zhengzhou,School of chemical and engineering and energy,Zhengzhou University,Henan Zhengzhou,School of chemical and engineering and energy,Zhengzhou University,Henan Zhengzhou,School of chemical and engineering and energy,Zhengzhou University,Henan Zhengzhou,School of chemical and engineering and energy,Zhengzhou University,Henan Zhengzhou |
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| Abstract: | |
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| Keywords: | Rain-drop dimple Plate heat exchanger Enhanced heat transfer Multi-objective optimize Numerical analysis |
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