Hydraulic Optimization and Experimental Measurement of Low Specific Speed Centrifugal Fire Pump

Document Type : Regular Article

Authors

1 Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China

2 Xinxiang Aviation Industry (Group) Co., Ltd., Xinxiang, Henan Province, 453003, China

3 Xi'an Aerospace Propulsion Institute, Xi'an, Shanxi Province, 710199, China

Abstract

As one of the core components of the fire-fighting water-supply system, the performance of a fire pump directly determines the extent of damage caused by the fire. Compared with conventional pumps, the design requirements of fire pumps not only need to ensure that the head of the pump is at 0Qd, 1.0Qd, and 1.5Qd and its efficiency is at 1.0Qd but also consider the cavitation performance at each flow rate, which presents a greater challenge for the design of high-performance fire pumps. By optimizing the design of a centrifugal fire pump with a specific speed of 24.7, numerical calculations were performed to obtain the best optimized scheme Y4. The results show that at the design flow rate the best optimized scheme improves the efficiency by 9.17% compared with the original scheme, and the head meets the design requirements of the fire pump while avoiding the hump phenomenon. Through a comparative analysis, it was found that the optimized scheme Y4 can reduce the pressure pulsations at the outlet of the pump and improve the cavitation performance at each flow rate. The experiment verifies that the head of the best optimized scheme at the design flow rate is 74.43m, the pump efficiency is 40.22%, and there is no hump in the head curve, which can meet the design and use requirements of the fire pump. The maximum reduction in the outlet pressure pulsations coefficient in the best optimized scheme was 47.12% on average. Compared with the original scheme, the critical net positive suction head (NPSHr) of the best optimized scheme was reduced by 21.5%, 17.6%, 15.7%, and 16.8%, respectively.

Keywords

References

Adu, D., J. Du, R. O. Darko, E. O. Antwi and M. Khan (2021). Numerical and experimental characterization of splitter blade impact on pump as turbine performance. Science progress 104(2),1-15.##
Ali, M. and A. Javed (2020). Numerical Analysis of Flow Phenomena in a Centrifugal Pump Impeller of Low Specific Speed. 2020 17th International Bhurban Conference on Applied Sciences and Technology (IBCAST).##
Chabannes, L., D. Tefan and P. Rudolf (2021). Effect of splitter blades on performances of a very low specific speed pump. Energies 14(13), 3785.##
Chen, B., X Li and Z Zhu (2022a). Investigations of energy distribution and loss characterization in a centrifugal impeller through PIV experiment. Ocean Engineering247, 110773.##
Chen, B., X Li and Z Zhu (2022b). Time-Resolved Particle Image Velocimetry Measurements and Proper Orthogonal Decomposition Analysis of Unsteady Flow in a Centrifugal Impeller Passage. Frontiers in Energy Research 9, 818232.##
Dyson, G. and J. Teixeira (2009). Investigation of closed valve operation using computational fluid dynamics. Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting.##
Fu, Y. X., J. P. Yuan, S. Q. Yuan, G. Pace, L. d'Agostino, P. Huang and X. J. Li (2015). Numerical and experimental analysis of flow phenomena in a centrifugal pump operating under low flow rates. Journal of Fluids Engineering 137(1), 011102.##
Han, X., Y. Kang, D. Li and W. Zhao (2018). Impeller optimized design of the centrifugal pump: A numerical and experimental investigation. Energies 11(6), 1444.##
Kocaaslan, O., M. Ozgoren, M. H. Aksoy and O. Babayigit (2016). Experimental and numerical investigation of coating effect on pump impeller and volute. Journal of Applied Fluid Mechanics 9(5), 2475-2487.##
Lei, T., Z. Xie, Y. Liu, H. Yue and X. Yun (2018). Influence of t-shape tip clearance on performance of a mixed-flow pump. Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy 232(4), 386–396.##
Li, X., T. Shen, P. Li, X. Guo and Z. Zhu (2020). Extended compressible thermal cavitation model for the numerical simulation of cryogenic cavitating flow. International Journal of Hydrogen Energy 45(16), 10104-10118.##
Lin, Y., X. Li, B. Li and X. Jia (2021). Influence of impeller sinusoidal tubercle trailing edge on pressure pulsation in a centrifugal pump at nominal flow rate. ASME Journal of Fluids Engineering 143 (9) 091205.##
Liu, H. L., D. X. Liu, Y. Wang, X. F. Wu, J. Wang and H. Du (2013). Experimental investigation and numerical analysis of unsteady attached sheet-cavitating flows in a centrifugal pump. Journal of Hydrodynamics 25(3), 370-378.##
Menin, J. A. and E. Iguama (2006). Hydraulic drive improves fire pump availability. World Pumps (480), 38-39.##
Namazizadeh, M., M. T. Gevari, M. Mojaddam and M. Vajdi (2020). Optimization of the splitter blade configuration and geometry of a centrifugal pump impeller using design of experiment. Journal of Applied Fluid Mechanics 13(1), 89-101.##
Paluch, M. and M. Noga (2020). Design of an impeller for a fire fighting pump. Journal of Physics: Conference Series 1619(1), 012009.##
Pei, J., M. K. Osman, W. Wang, J. Yuan and D. Appiah (2019). Unsteady flow characteristics and cavitation prediction in the double-suction centrifugal pump using a novel approach. Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy 234(3), 095765091986363.##
Rosa, H. and B. S. Emerick (2020). CFD simulation on centrifugal pump impeller with splitter blades. Revista Brasileira de Engenharia Agrícola e Ambiental 24(1), 3-7.##
Shi, W. D., D. S. Zhang, W. G. Lu and W. D. Cao (2009). Design and experimental study on low-specific centrifugal fire pumps. China Mechanical Engineering 20(5), 514-517.##
Vasiljeva, O., I. Pasnak and A. Renkas (2020). Devising a method for ensuring the reliability of fire centrifugal pumps while reducing their weight and dimension characteristics by optimizing their structural elements. Eastern-European Journal of Enterprise Technologies 108(1), 14-19.##
Wang, K., G. Luo, Y. Li, R. Xia and H. Liu (2019). Multi-condition optimization and experimental verification of impeller for a marine centrifugal pump. International Journal of Naval Architecture and Ocean Engineering 12(1) 71- 84.##
Wang, Y., H. Liu, D. Liu, S. Yuan, J. Wang and L. Jiang (2016). Application of the two-phase three-component computational model to predict cavitating flow in a centrifugal pump and its validation. Computers & Fluids 131, 142-150.##
Xu, Y., L. Tan, S. L. Cao and W. S. Qu (2016). Multiparameter and multiobjective optimization design of centrifugal pump based on orthogonal method. ARCHIVE Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science 231(14), 2569-2579.##
Yang, X. X., W. W. Song, L. C. Wei, J. W. Shi and X. Wang (2017). Design and analysis of high-speed fire pumps. Journal of Drainage & Irrigation Machinery Engineering 35(12), 1036-1041.##
Yuan, Y. and S. Q. Yuan (2017). Analyzing the effects of splitter blade on the performance characteristics for a high-speed centrifugal pump. Advances in Mechanical Engineering 9(12), 1687814017745251.##
Zhang, J. F., Z. J. Yang, L. Q. Lai, H. Q. Song and C. M. Jing (2021). Automatic optimization of vertical long-shaft fire pump overload based on Particle Swarm optimization algorithm. IOP Conference Series: Materials Science and Engineering 1081(1), 012017.##
Zhang, R. H., X. B. Chen and J. Q. Luo (2020). Knowledge mining of low specific speed centrifugal pump impeller based on Proper Orthogonal Decomposition method. Journal of Thermal Science 30(3), 840-848.##
Zwart, P. J., A. G. Gerber and T. Belamri (2004). A two-phase flow model for predicting cavitation dynamics. In Fifth international conference on multiphase flow, 152.##
Journal of Applied Fluid Mechanics
Volume 15, Issue 5 - Serial Number 67
September and October 2022
Pages 1477-1489

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History

  • Received: 04 April 2022
  • Revised: 21 May 2022
  • Accepted: 21 May 2022
  • Available online: 27 June 2022

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