Influence of diffuser vane number on energy loss of multistage centrifugal pump

被引：0
|
作者：
Wu T.X. [1 ]
Wu D.H. [1 ]
Zhang T. [1 ]
Huang H.M. [1 ]
Wu Y.Z. [1 ]
Mou J.G. [1 ]
机构：
[1] College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou
来源：
International Journal of Fluid Machinery and Systems | 2021年 / 14卷 / 04期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Diffuser vane number; Energy loss; Entropy production theory; Multistage centrifugal pump; Pressure fluctuation;
D O I：
10.5293/IJFMS.2021.14.4.373
中图分类号：
学科分类号：
摘要：
As a key component of a multistage pump, the diffuser affects the efficiency of the multistage centrifugal pump. However, the loss mechanism inside the diffuser and links between the loss mechanism and vane numbers of diffuser were still not fully understood. In order to investigate the influence of the number of diffuser vane on the energy loss characteristics of multistage centrifugal pump, this paper analyzes the energy loss characteristics of pump with different number of diffuser vane by utilizing entropy production theory. The results show that under the design condition, when the number of diffuser vane increases to 11, the head is increased by 1.2m and the efficiency is increased by 3%. At the same time, with the increase of the number of diffuser vane, the backflow and eddy phenomena are gradually weakened, flow stream is more stable, the entropy production rate is significantly reduced, but the intensity of pressure pulsation in the diffuser is increased slightly. © 2021, Turbomachinery Society of Japan. All rights reserved.
引用
收藏
页码：373 / 382
页数：9
相关论文
共 50 条
  • [31] Turbulence simulation in the centrifugal pump diffuser
    Hu, Zeming
    Chen, Xueelun
    Shiyou Daxue Xuebao/Journal of the University of Petroleum China, 1993, 17 (03):
  • [32] Numerical study of the influence of half diffuser on the radial force in a centrifugal pump
    Jiang W.
    Chen D.
    Wang Y.
    Zhu X.
    Li G.
    Zhendong yu Chongji/Journal of Vibration and Shock, 2019, 38 (10): : 15 - 22
  • [33] Optimal design of multistage centrifugal pump based on the combined energy loss model and computational fluid dynamics
    Wang, Chuan
    Shi, Weidong
    Wang, Xikun
    Jiang, Xiaoping
    Yang, Yang
    Li, Wei
    Zhou, Ling
    APPLIED ENERGY, 2017, 187 : 10 - 26
  • [34] Influence of Inlet Vane and Wrap Angles on Cavitation Behavior of a Centrifugal Pump
    Donmez, A. H.
    Yumurtaci, Z.
    Kavurmacioglu, L.
    JOURNAL OF APPLIED FLUID MECHANICS, 2023, 16 (03) : 519 - 531
  • [35] Numerical Research on the Energy Loss of a Single-Stage Centrifugal Pump with Different Vaned Diffuser Outlet Diameters
    Lai, Fen
    Zhu, Xiangyuan
    Li, Guojun
    Zhu, Liping
    Wang, Fengming
    INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS, 2019, 158 : 5523 - 5528
  • [36] Study on Design and Improvement of Wedge Vane Diffuser for Centrifugal Compressor
    Zhang, Mei
    Xi, Guang
    Tang, Yong-Hong
    Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2020, 41 (03): : 601 - 608
  • [37] Effect of diffuser vane height and position on the performance of a centrifugal compressor
    Issac, JM
    Sitara, N
    Govardhan, M
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY, 2004, 218 (A8) : 647 - 654
  • [38] The Influence of the Radial Diffuser Geometry on the Position of Best Efficiency Point of the Multistage Pump
    Varchola, Michal
    Hlbocan, Peter
    XIX.THE APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGETICS 2014, 2014, 1608 : 257 - 266
  • [39] Effect of diffuser vane shape on the performance of a centrifugal compressor stage
    T. Ch Siva Reddy
    G. V. Ramana Murty
    M. V. S. S. S. M. Prasad
    Journal of Thermal Science, 2014, 23 : 127 - 132
  • [40] Effect of Diffuser Vane Shape on the Performance of a Centrifugal Compressor Stage
    T Ch Siva Reddy
    GV Ramana Murty
    MVSSSM Prasad
    Journal of Thermal Science, 2014, 23 (02) : 127 - 132
12345