A method of installing a jet pump at the bottom of a contaminated lake or river and stirring the contaminated area with a jet of large flow rate generated by the jet pump to promote water purification has attracted attention. By stirring the contaminated area, dissolved oxygen in the water is supplied to the stagnant area. As a result, the activity of the bacteria in the water is enhanced, and the decomposition and removal of the contaminants is promoted. In this study, the structure and operating conditions of a jet pump capable of generating a jet flow of larger flow rate with less energy consumption was pursued. In particular, the operation efficiency of the jet pump in the case of adopting the multi-nozzle injection method as the supply method of the primary jet was experimentally evaluated by precise flow rate measurement in a large tank experiment. In addition, quantitative evaluation of energy consumed by constituent equipments such as electric motors, pumps, pipelines and so on constituting the jet pump system was performed, and the total energy efficiency of the jet pump system was also evaluated. As a result, it became clear that the multi-injection method of the primary jet shows superior energy efficiency compared with the jet pump of the conventional structure.
| Published in | American Journal of Mechanics and Applications (Volume 6, Issue 3) |
| DOI | 10.11648/j.ajma.20180603.11 |
| Page(s) | 58-67 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Underwater Jet Pump, Multi-injection Method, Amplification Factor, System Efficiency, Boundary Layer
| [1] | H. Narui, and S. Inagaki, “Efficiency analysis of jet pumps without diffusers,” Transactions of the JSME, Vol. 57, No. 534 (1991), pp. 179–184 (in Japanese). |
| [2] | A. H. Hammoud, “Effect of design and operational parameters on jet pump performance,” Proceedings of the 4th WSEAS International Conference on Fluid Mechanics and Aerodynamics, Elounda, Greece, August 21-23, (2006), pp. 245–252. |
| [3] | I. E. L. Neto, “Maximum suction lift of water jet pumps,” Journal of Mechanical Science and Technology, Vol. 25, No.2 (2011), pp. 391–394. |
| [4] | S. R. Pandhare, and A. K. Pitale, “Study the performance of water jet pump by changing the angle of mixing nozzle,” IJSRST, Vol. 3, No. 3 (2017), pp.538–540. |
| [5] | A. H. Hammoud, and A. A. Abdel Naby, “Slurry Jet Pump Performance Under Different Design and Operational parameters,” Proceedings of the 4th WSEAS International Conference on Fluid Mechanics and Aerodynamics, Elounda, Greece, August 21-23, (2006), pp. 237–244. |
| [6] | C. H. Zou, H. Li, P. Tang, and D. H. Xu, “Effect of structural forms on the performance of a jet pump for a deep well jet pump,” WIT Transactions on Modeling and Simulation, Vol. 59, Computational Methods and Experimental Measurements XVII (2015), pp.257–266. |
| [7] | S. Mohammad azeez, and A. Venkateswarulu, “Design and analysis of ejector refrigeration system using R-134a refrigerant,” International Research Journal of Engineering and Technology, Vol. 5, Issue 6 (2018), pp. 2160–2166. |
| [8] | K. Skrzypek, and R. Grzywacz, “The mixing hydrodynamics and efficiency of the Venturi jet mixer,” Technical Transactions 11/2017, Chemistry, pp. 95–106. |
| [9] | T. Kurokawa, and T. Kodani, “A study on relation between device shape and flow characteristic of jet pump type flow device,” Journal of JSCE B1, Vol.71, No.4 (2015), pp. 799–804 (in Japanese). |
| [10] | M. Suzuki, K. Tanaka, and S. Sakuragi, “The operating characteristics of an underwater jet pump,” Proceedings of the 3rd IPEJ Chubu District Conference on Research achievements, (2016), pp. 1–4 (in Japanese). |
| [11] | S. Zhao and S. Sakuragi, “Performance improvement of underwater jet pump by optimal arrangement of primary jet stream,” Journal of Fluid Science and Technology, Vol.13, No.1, (2018), JFST0004. |
| [12] | R. H. Sabersky, A. J. Acosta, and E. G. Hauptmann, Fluid flow (1971), pp. 64–67, Macmillan. |
| [13] | R. L. Daugherty, J. B. Franzini and E. J. Finnemore, Fluid Mechanics with Engineering Applications, eighth edition (1985), pp. 87–88, McGraw-Hill. |
| [14] | Y. Hagita and S. Sakuragi, “Characteristics of power generation in loop wing wind turbine generator,” Proceedings of the 4th IPEJ Chubu District Conference on Research achievements, (2017), pp. 1–4 (in Japanese). |
| [15] | Japanese Industrial Standards JIS C 4210; Low-voltage three-phase squirrel cage induction motor for general use (in Japanese). |
| [16] | Japanese Industrial Standards JIS B 8313; Small spiral pump (in Japanese). |
| [17] | Y. Lahiouel and R. Lahiouel, “Evaluation of Energy Losses in Pipes,” American Journal of Mechanical Engineering, Vol. 3, No. 3A, 2015, pp. 32–37. |
| [18] | K. H. Beij, “Pressure losses for fluid flow in 90° pipe bends,” Journal of Research of the National Bureau of Standards, Volume 21, July 1938, Research Paper RP1110. |
APA Style
Shunichi Sakuragi, Shendan Zhao. (2018). Operating Characteristics of Multi-Injection Type Underwater Jet Pump. American Journal of Mechanics and Applications, 6(3), 58-67. https://doi.org/10.11648/j.ajma.20180603.11
ACS Style
Shunichi Sakuragi; Shendan Zhao. Operating Characteristics of Multi-Injection Type Underwater Jet Pump. Am. J. Mech. Appl. 2018, 6(3), 58-67. doi: 10.11648/j.ajma.20180603.11
AMA Style
Shunichi Sakuragi, Shendan Zhao. Operating Characteristics of Multi-Injection Type Underwater Jet Pump. Am J Mech Appl. 2018;6(3):58-67. doi: 10.11648/j.ajma.20180603.11
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Download@article{10.11648/j.ajma.20180603.11,
author = {Shunichi Sakuragi and Shendan Zhao},
title = {Operating Characteristics of Multi-Injection Type Underwater Jet Pump},
journal = {American Journal of Mechanics and Applications},
volume = {6},
number = {3},
pages = {58-67},
doi = {10.11648/j.ajma.20180603.11},
url = {https://doi.org/10.11648/j.ajma.20180603.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20180603.11},
abstract = {A method of installing a jet pump at the bottom of a contaminated lake or river and stirring the contaminated area with a jet of large flow rate generated by the jet pump to promote water purification has attracted attention. By stirring the contaminated area, dissolved oxygen in the water is supplied to the stagnant area. As a result, the activity of the bacteria in the water is enhanced, and the decomposition and removal of the contaminants is promoted. In this study, the structure and operating conditions of a jet pump capable of generating a jet flow of larger flow rate with less energy consumption was pursued. In particular, the operation efficiency of the jet pump in the case of adopting the multi-nozzle injection method as the supply method of the primary jet was experimentally evaluated by precise flow rate measurement in a large tank experiment. In addition, quantitative evaluation of energy consumed by constituent equipments such as electric motors, pumps, pipelines and so on constituting the jet pump system was performed, and the total energy efficiency of the jet pump system was also evaluated. As a result, it became clear that the multi-injection method of the primary jet shows superior energy efficiency compared with the jet pump of the conventional structure.},
year = {2018}
}
TY - JOUR T1 - Operating Characteristics of Multi-Injection Type Underwater Jet Pump AU - Shunichi Sakuragi AU - Shendan Zhao Y1 - 2018/12/21 PY - 2018 N1 - https://doi.org/10.11648/j.ajma.20180603.11 DO - 10.11648/j.ajma.20180603.11 T2 - American Journal of Mechanics and Applications JF - American Journal of Mechanics and Applications JO - American Journal of Mechanics and Applications SP - 58 EP - 67 PB - Science Publishing Group SN - 2376-6131 UR - https://doi.org/10.11648/j.ajma.20180603.11 AB - A method of installing a jet pump at the bottom of a contaminated lake or river and stirring the contaminated area with a jet of large flow rate generated by the jet pump to promote water purification has attracted attention. By stirring the contaminated area, dissolved oxygen in the water is supplied to the stagnant area. As a result, the activity of the bacteria in the water is enhanced, and the decomposition and removal of the contaminants is promoted. In this study, the structure and operating conditions of a jet pump capable of generating a jet flow of larger flow rate with less energy consumption was pursued. In particular, the operation efficiency of the jet pump in the case of adopting the multi-nozzle injection method as the supply method of the primary jet was experimentally evaluated by precise flow rate measurement in a large tank experiment. In addition, quantitative evaluation of energy consumed by constituent equipments such as electric motors, pumps, pipelines and so on constituting the jet pump system was performed, and the total energy efficiency of the jet pump system was also evaluated. As a result, it became clear that the multi-injection method of the primary jet shows superior energy efficiency compared with the jet pump of the conventional structure. VL - 6 IS - 3 ER -
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