Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment
Single-channel pump is a type of centrifugal pump that is frequently utilized for wastewater treatment around the world, but they often operate at low flow rates with low efficiency and loud noise because the wastewater contains many impurities. In this study, an adjustable tongue vane was developed...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024175421 |
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| author | Duc-Anh Nguyen Kexin Wu Xiaojun Li Gyeong Sung Kim Jin-Hyuk Kim |
| author_facet | Duc-Anh Nguyen Kexin Wu Xiaojun Li Gyeong Sung Kim Jin-Hyuk Kim |
| author_sort | Duc-Anh Nguyen |
| collection | DOAJ |
| description | Single-channel pump is a type of centrifugal pump that is frequently utilized for wastewater treatment around the world, but they often operate at low flow rates with low efficiency and loud noise because the wastewater contains many impurities. In this study, an adjustable tongue vane was developed that controls the internal flow direction in the volute to increase the energy performance of a single-channel pump. Numerical simulations were conducted by using Reynolds-averaged Navier-Stokes equations and shear stress transport turbulence model to evaluate the energy loss inside the volute. In the experiment, the single-channel pump demonstrated stable operation in the waste environment. In the numerical simulation, the −10° model increased the efficiency and total head by 1.007 % and 1.242 %, respectively compared to the reference model at the best efficiency point. At low flow rates, however, the −20° model increased the efficiency and total head by up to 25.126 % and 5.604 %, respectively, while decreasing the power consumption by up to 15.533 % compared to the reference model. This improvement is attributed to the adjustable tongue vane suppressing separation flow, which reduces hydraulic losses and energy dissipation. The proposed tongue vane can be used to improve the energy performance of not only single-channel pumps but also other centrifugal turbomachinery. |
| format | Article |
| id | doaj-art-fe594f91bb7d4ec88b53a2b7a3df0f98 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-fe594f91bb7d4ec88b53a2b7a3df0f982025-01-17T04:51:30ZengElsevierHeliyon2405-84402025-01-01111e41511Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatmentDuc-Anh Nguyen0Kexin Wu1Xiaojun Li2Gyeong Sung Kim3Jin-Hyuk Kim4Convergence Manufacturing System Engineering (Green Process and Energy System Engineering), University of Science & Technology, Daejeon, 34113, South Korea; Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan, 31056, South KoreaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaDepartment of Physics and Engineering, California State University, Bakersfield, Bakersfield, CA, 93311, USAConvergence Manufacturing System Engineering (Green Process and Energy System Engineering), University of Science & Technology, Daejeon, 34113, South Korea; Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan, 31056, South Korea; Department of Physics and Engineering, California State University, Bakersfield, Bakersfield, CA, 93311, USA; Corresponding author. Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology, Cheonan, 31056, South Korea.Single-channel pump is a type of centrifugal pump that is frequently utilized for wastewater treatment around the world, but they often operate at low flow rates with low efficiency and loud noise because the wastewater contains many impurities. In this study, an adjustable tongue vane was developed that controls the internal flow direction in the volute to increase the energy performance of a single-channel pump. Numerical simulations were conducted by using Reynolds-averaged Navier-Stokes equations and shear stress transport turbulence model to evaluate the energy loss inside the volute. In the experiment, the single-channel pump demonstrated stable operation in the waste environment. In the numerical simulation, the −10° model increased the efficiency and total head by 1.007 % and 1.242 %, respectively compared to the reference model at the best efficiency point. At low flow rates, however, the −20° model increased the efficiency and total head by up to 25.126 % and 5.604 %, respectively, while decreasing the power consumption by up to 15.533 % compared to the reference model. This improvement is attributed to the adjustable tongue vane suppressing separation flow, which reduces hydraulic losses and energy dissipation. The proposed tongue vane can be used to improve the energy performance of not only single-channel pumps but also other centrifugal turbomachinery.http://www.sciencedirect.com/science/article/pii/S2405844024175421Single-channel pumpEnergy performanceEntropy generationTongue vane |
| spellingShingle | Duc-Anh Nguyen Kexin Wu Xiaojun Li Gyeong Sung Kim Jin-Hyuk Kim Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment Heliyon Single-channel pump Energy performance Entropy generation Tongue vane |
| title | Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment |
| title_full | Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment |
| title_fullStr | Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment |
| title_full_unstemmed | Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment |
| title_short | Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment |
| title_sort | adjustable tongue vane for improving the energy performance of a submersible single channel pump for wastewater treatment |
| topic | Single-channel pump Energy performance Entropy generation Tongue vane |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024175421 |
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