Investigations on the coupling flow between full-scale last-stage steam turbine and low-pressure exhaust hood
文献类型：期刊论文
| 作者 | Fu, Jing-Lun; Liu, Jian-Jun |
| 刊名 | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 229期号:8页码:889-909 |
| 关键词 | Steam turbine exhaust hood full scale coupling flow |
| 英文摘要 | In a condensing steam turbine, the last-stage turbine and the condenser are connected by the low-pressure axial-radial exhaust hood. The exhaust hood has a complex geometry to make the flow change direction by 90 degrees, while guiding the flow from the turbine to the condenser. During the operation, strong flow interactions between the turbine and the exhaust hood cause the flow pattern to become extremely complicated. The purpose of this paper is to investigate the coupling flow between the full-scale last-stage turbine and the low-pressure exhaust hood of a 600MW steam turbine under actual operation conditions. The simulational calculations of the flow through the last stage turbine and the exhaust hood were realized by coupling calculations of turbine stage and exhaust hood in an external iterative manner. Equilibrium wet steam was selected as the flow medium. The coupling flow fields under different operation conditions were simulated and analyzed. It is found that the distributions of the turbine exit flow fields at different circumferential locations vary remarkably. The profiles of swirl angle and total pressure distributions at the turbine outlet change with the decrease of the mass flowrate, which further influence the flow behavior in the hood and lead to the reduction of the performance. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Mechanical |
| 研究领域[WOS] | Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365134500007 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/112308]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Jing-Lun,Liu, Jian-Jun. Investigations on the coupling flow between full-scale last-stage steam turbine and low-pressure exhaust hood[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,2015,229(8):889-909. |
| APA | Fu, Jing-Lun,&Liu, Jian-Jun.(2015).Investigations on the coupling flow between full-scale last-stage steam turbine and low-pressure exhaust hood.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,229(8),889-909. |
| MLA | Fu, Jing-Lun,et al."Investigations on the coupling flow between full-scale last-stage steam turbine and low-pressure exhaust hood".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY 229.8(2015):889-909. |
入库方式： OAI收割
来源：工程热物理研究所
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