Unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine

doi:10.1177/09544062211020781

	Unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine
	Miao, Senchun 1,2; Zhang, Hongbiao 2; Zhang, Jiawei 2; Wang, Xiaohui 2; Shi, Fengxia 2
刊名	PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
	2021-06
卷号	236 期号:3 页码:1502-1511
关键词	Centrifugal pump as turbine energy conversion unsteady dynamic and static interference impeller
ISSN号	0954-4062
DOI	10.1177/09544062211020781
英文摘要	To study unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine (PAT), the overall and sub-section methods are used to calculate the unsteady flow of the PAT under six working conditions. Through numerical calculations, the net input power of the impeller, the time domain change law of the fluid's work on the impeller, the time domain change law of power loss in the impeller, and the time domain change law of energy conversion in different regions of the impeller are analyzed. Results show that: the dynamic and static interference between the impeller blades and the tongue caused the fluctuation of energy conversion; with the increase of area between the head of the impeller blade and the opposite tongue, the power loss in the impeller decreases. And when the blade head completely deviates from the position of the tongue about 10 degrees, the power loss in the impeller is minimized. The power output of the PAT at different flow rates is related to its internal flow conditions and the geometric structure of each region of the impeller. The above research results can provide guidance on how to operate the PAT impeller stably and efficiently.
WOS研究方向	Engineering
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000682911600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148718]
专题	能源与动力工程学院
作者单位	1.Jiangsu Shuangda Pump Valve Grp Co Ltd, Technol Dept, Jingjiang, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou, Peoples R China;
推荐引用方式 GB/T 7714	Miao, Senchun,Zhang, Hongbiao,Zhang, Jiawei,et al. Unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE,2021,236(3):1502-1511.
APA	Miao, Senchun,Zhang, Hongbiao,Zhang, Jiawei,Wang, Xiaohui,&Shi, Fengxia.(2021).Unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE,236(3),1502-1511.
MLA	Miao, Senchun,et al."Unsteady flow characteristics of energy conversion in impeller of centrifugal pump as turbine".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE 236.3(2021):1502-1511.