| 平直翅片管与波浪翅片管流动换热性能比较 |
| |
| 引用本文： | 张璟,李宴君,温娟,唐大伟.平直翅片管与波浪翅片管流动换热性能比较[J].工程热物理学报,2011(8). |
| |
| 作者姓名： | 张璟 李宴君 温娟 唐大伟 |
| |
| 作者单位： | 中国科学院工程热物理研究所;北京石油化工学院机械工程学院; |
| |
| 基金项目： | 国家重点基础研究发展计划资助(No.2009CB219804) |
| |
| 摘 要： | 扁管外焊蛇形平直翅片是直接空冷凝汽器翅片管的一种常见形式,为进一步提高空冷凝汽器的冷凝效率,建立了波浪翅片扁管的三维物理数学模型。通过数值模拟,获得了不同空气入口流速下,波浪翅片扁管和平直翅片扁管外冷却空气的流场和温度场,通过对流换热系数和流动损失的对比分析表明,波浪翅片扁管在空气侧换热系数和流动损失方面比平直翅片扁管有一定的优势,在低风速的工况下,优势较为明显。
|
| 关 键 词： | 直接空冷凝汽器 扁管 翅片 数值模拟 |
Flow and Heat Transfer Characteristics Comparison Between Flat Wave-Fin Tube and Corrugated-Fin Flat Tube |
| |
| ZHANG Jing LI Yan-Jun WEN Juan TANG Da-Wei.Flow and Heat Transfer Characteristics Comparison Between Flat Wave-Fin Tube and Corrugated-Fin Flat Tube[J].Journal of Engineering Thermophysics,2011(8). |
| |
| Authors: | ZHANG Jing LI Yan-Jun WEN Juan TANG Da-Wei |
| |
| Institution: | ZHANG Jing~(1,2) LI Yan-Jun~1 WEN Juan~1 TANG Da-Wei~1 (1.Institute of Engineering Thermophysics,Chinese Academy of Science,Beijing 100190,China,2.Beijing Institute of Petrochemical Technology,Beijing 102617,China) |
| |
| Abstract: | The flat wave-fin tube condenser is well applied in direct-cooled power plants,In order to further enhance the condensing efficiency of air cooled condensers,a three dimensional physico-mathematical model of a corrugated-fin tube has been established.The air flow and temperature fields outside the flat wave-fin tube and corrugated-fin tube were numerically simulated at different inlet air velocities.Through comparison of the convection heat transfer coefficient and the flow loss etc.,it shows that the corru... |
| |
| Keywords: | direct air cooled condenser flat tube fin numerical simulation |
| 本文献已被 CNKI 等数据库收录！ |
|
