| 直接空冷凝汽器间断波纹翅片式扁平管的数值研究 |
| |
| 引用本文： | 张树国,赵兴楼,张艳娟.直接空冷凝汽器间断波纹翅片式扁平管的数值研究[J].热力发电,2009,38(7). |
| |
| 作者姓名： | 张树国 赵兴楼 张艳娟 |
| |
| 作者单位： | 1. 华北电力大学环境科学与工程学院,河北保定,071003
2. 华北电力大学能源与动力工程学院,河北保定,071003 |
| |
| 基金项目： | 华北电力大学博士科研基金 |
| |
| 摘 要： | 蛇形扁平管在空冷机组的应用上取得了较好的效果,为进一步提高机组空冷凝汽器的冷凝效率,优化翅片式扁平管的结构,建立了间断波纹翅片式扁平管通道的三维物理数学模型.通过对对流换热系数、气侧换热量、流动损失的对比分析表明,间断波纹翅片式扁平管在空气侧换热量和流动损失方面比蛇形翅片式扁平管有一定的优势.
|
| 关 键 词： | 直接空冷凝汽器 扁平管 间断波纹翅片 数值模拟 结构优化 |
NUMERICAL STUDY OF DISCONTINUOUSLY CORRUGATED-FIN FLAT TUBES FOR DIRECT AIR COOLED CONDENSERS |
| |
| ZHANG Shu-guo,ZHAO Xing-lou,ZHANG Yan-juan.NUMERICAL STUDY OF DISCONTINUOUSLY CORRUGATED-FIN FLAT TUBES FOR DIRECT AIR COOLED CONDENSERS[J].Thermal Power Generation,2009,38(7). |
| |
| Authors: | ZHANG Shu-guo ZHAO Xing-lou ZHANG Yan-juan |
| |
| Abstract: | Better effectiveness had been obtained in applying snake-shaped finned flat tubes onto air-cooled units. In order to further enhance the condensing efficiency of air-cooled condensers for the said units,and optimize the structure of finned flat tubes, a three-dimenssional physico-mathematical model of a channel formulated by discontinuously corrugated fin flat tubes has been established.Through comparison and analysis of the convection heat transfer coefficient, heat amount transferred to the air side,and the flow loss etc. ,it shows that the discontinuously corrogated fin flat tubes boast cer-tain superiority in aspects of the heat amount transferred to air side and the flow loss as compared withthat of the snake-shaped finned flat tubes. |
| |
| Keywords: | direct air cooled condenser flat tube discontinuously corrugated fin tube numerical simula-tion structure optimization |
| 本文献已被 万方数据 等数据库收录！ |
|
