Performance analysis and experimental verification of hydraulic driven axial flow pumps

Tong, Zhiting; Yuan, Ye; Zhang, Chao; Zhang, Zhimin; Zhang, Yue

doi:10.1007/s12206-023-0520-8

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…It was found that the impeller vane exit angle had a significant effect on the pump performance curve. Tong et al [32] conducted axial flow pump performance analysis experimentally and numerically. The results showed that a higher head led to increased pump rotation speed.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh,

Roh

et al. 2024

Computation

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Small submersible drainage pumps are used to discharge leaking water and rainwater in buildings. In an emergency (e.g., heavy rain or accident), advance monitoring of the flow rate is essential to enable optimal operation, considering the point where the pump operates abnormally when the water level is increased rapidly. Moreover, pump performance optimization is crucial for energy-saving policy. Therefore, it is necessary to meet the challenges of submersible pump systems, including sustainability and pump efficiency. The final goal of this study was to develop an energy-saving and highly efficient submersible drainage pump capable of performing efficiently in emergencies. In particular, this paper targeted the hydraulic performance improvement of a submersible drainage pump model. Prior to the development of driving-mode-related technology capable of emergency response, a way to improve the performance characteristics of the existing submersible drainage pump was found. Disassembling of the current pump followed by reverse engineering was performed instead of designing a new pump. Numerical simulation was performed to analyze the flow characteristics and pump efficiency. An experiment was carried out to obtain the performance, and it was validated with numerical results. The results reveal that changing the cross-sectional shape of the impeller reduced the flow separation and enhanced velocity and pressure distributions. Also, it reduced the power and increased efficiency. The results also show that the pump’s efficiency was increased to 5.56% at a discharge rate of 0.17 m3/min, and overall average efficiency was increased to 6.53%. It was concluded that the submersible pump design method is suitable for the numerical designing of an optimized pump’s impeller and casing. This paper provides insight on the design optimization of pumps.

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Section: Introductionmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh,

Roh

et al. 2024

Computation

View full text Add to dashboard Cite

show abstract

“…It was found that the impeller vane exit angle had a significant effect on the pump performance curve. Tong et al [32] investigated axial flow pump performance analysis experimentally and numerically. Results showed that the higher head was encountered with increased pump rotating speed.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh

et al. 2023

Preprint

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Small submersible drainage pumps discharge leaking water and rainwater in buildings. In an emergency (e.g., heavy rain or accident), monitoring the flow rate in advance is necessary to enable optimal operation, considering the point where the pump operates abnormally when the water level increases rapidly. In another, pump performance optimization is crucial for energy saving policy. Therefore, it is necessary to meet the challenges of submersible pump systems, including sustainability and pump efficiency. The final goal of this study is to develop an energy-saving, high-efficiency submersible drainage pump capable of responding to emergencies. In particular, this paper targeted the hydraulic performance improvement of a submersible drainage pump model. Before the development of driving mode-related technology capable of emergency response, we first tried to find a way to improve the performance characteristics of the existing submersible drainage pump. Rather than designing a new pump, we disassembled the current pump and reverse engineering. Then, numerical simulation was performed to analyze the flow characteristics and efficiency of the pump. Then, the pump test was carried out to obtain the performance and validated with numerical results. Results revealed that changing the cross-sectional shape of the impeller reduced the flow separation and enhanced velocity and pressure distributions. Also, it reduced the power and increased efficiency. Results also showed that the pump's efficiency increased to 5.56% at a discharge rate of 0.17 m3/min, and overall average efficiency increased to 6.53%. In addition, the submersible pump design method could be suitable for the optimized pump's impeller and casing numerically. This paper can provide insight and information on the design optimization of pumps.

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Optimized impeller hydraulic performance of submersible drainage pumps: An experimental study

Rakibuzzaman,

Kim,

Islam

et al. 2024

Physics of Fluids

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Optimizing the hydraulic efficiency of submersible drainage pumps (SDPs) is crucial for energy conservation and performance enhancement, especially in emergency applications. Therefore, this study aims to develop an energy-efficient SDP by designing an optimized impeller model using a numerical scheme and introducing a flow balance block (FBB) as an alternative to modifying the pump casing, thereby reducing internal space and improving performance. Experimental validation of the optimized impeller and FBB was conducted by comparing their performance with the original pump model. The results demonstrated that the optimized impeller increased efficiency by 3.35% at a flow rate of 0.195 m3/min, with an overall average efficiency improvement of 2.33%. Additionally, when the optimized impeller and FBB were combined, the pump's efficiency was further enhanced by 5%, and the flow rate increased by approximately 10%. The study also proposed that the tap bolt method is more effective for installing the FBB than the silicone attaching method. This research provides a comprehensive experimental approach to improving SDP efficiency and offers valuable insights for future pump optimization.

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Performance analysis and experimental verification of hydraulic driven axial flow pumps

Cited by 3 publications

References 14 publications

Hydraulic Performance Optimization of a Submersible Drainage Pump

Hydraulic Performance Optimization of a Submersible Drainage Pump

Hydraulic Performance Optimization of a Submersible Drainage Pump

Optimized impeller hydraulic performance of submersible drainage pumps: An experimental study

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