Scale effect for hydraulic model of a mixed flow nuclear main pump
Optimizing the hydraulic components of nuclear main pump (NMP) and conducting performance verification is crucial. Due to the large size of the real NMP, the strict requirements of the operation and the high test-cost, there are many difficulties in the real test. The mixed flow NMP is taken as the...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S173857332400384X |
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| author | Tao Zhou Yong Zhu Shengnan Tang |
| author_facet | Tao Zhou Yong Zhu Shengnan Tang |
| author_sort | Tao Zhou |
| collection | DOAJ |
| description | Optimizing the hydraulic components of nuclear main pump (NMP) and conducting performance verification is crucial. Due to the large size of the real NMP, the strict requirements of the operation and the high test-cost, there are many difficulties in the real test. The mixed flow NMP is taken as the research object, and the CAP1400 NMP is selected as the prototype pump (PP). The model pumps (MPs) with varying scales are established based on the similarity conversion algorithm (SCA). Then, the influence of different scales on the hydraulic performance and internal flow field is investigated and compared. It is demonstrated that the predicted value of head is 4 % higher than the design value at the design operating point, and the maximum efficiency point is close to the design operating point. In the range of full flow conditions, the head, hydraulic efficiency, impeller efficiency, guide vane energy loss, internal flow field, and vorticity distribution of PP and MPs are basically consistent with the trend of flow rate variations. The PP and MPs conform to the SCA. The hydraulic design and performance optimization of NMP are achieved by using the model proportional scaling approach. |
| format | Article |
| id | doaj-art-8c2a99956f694db98041c52a369002b4 |
| institution | Kabale University |
| issn | 1738-5733 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj-art-8c2a99956f694db98041c52a369002b42025-01-12T05:24:36ZengElsevierNuclear Engineering and Technology1738-57332025-01-01571103137Scale effect for hydraulic model of a mixed flow nuclear main pumpTao Zhou0Yong Zhu1Shengnan Tang2National Research Center of Pumps, Jiangsu University, Zhenjiang, 212013, ChinaNational Research Center of Pumps, Jiangsu University, Zhenjiang, 212013, China; Wenling Fluid Machinery Technology Institute, Jiangsu University, Wenling, 317525, ChinaInstitute of Advanced Manufacturing and Modern Equipment Technology, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, China; Saurer (Changzhou) Textile Machinery Co., Ltd., Changzhou, 213200, China; Corresponding author.Optimizing the hydraulic components of nuclear main pump (NMP) and conducting performance verification is crucial. Due to the large size of the real NMP, the strict requirements of the operation and the high test-cost, there are many difficulties in the real test. The mixed flow NMP is taken as the research object, and the CAP1400 NMP is selected as the prototype pump (PP). The model pumps (MPs) with varying scales are established based on the similarity conversion algorithm (SCA). Then, the influence of different scales on the hydraulic performance and internal flow field is investigated and compared. It is demonstrated that the predicted value of head is 4 % higher than the design value at the design operating point, and the maximum efficiency point is close to the design operating point. In the range of full flow conditions, the head, hydraulic efficiency, impeller efficiency, guide vane energy loss, internal flow field, and vorticity distribution of PP and MPs are basically consistent with the trend of flow rate variations. The PP and MPs conform to the SCA. The hydraulic design and performance optimization of NMP are achieved by using the model proportional scaling approach.http://www.sciencedirect.com/science/article/pii/S173857332400384XNuclear main pumpHydraulic modelScale effectHydraulic performanceSimilarity conversion |
| spellingShingle | Tao Zhou Yong Zhu Shengnan Tang Scale effect for hydraulic model of a mixed flow nuclear main pump Nuclear Engineering and Technology Nuclear main pump Hydraulic model Scale effect Hydraulic performance Similarity conversion |
| title | Scale effect for hydraulic model of a mixed flow nuclear main pump |
| title_full | Scale effect for hydraulic model of a mixed flow nuclear main pump |
| title_fullStr | Scale effect for hydraulic model of a mixed flow nuclear main pump |
| title_full_unstemmed | Scale effect for hydraulic model of a mixed flow nuclear main pump |
| title_short | Scale effect for hydraulic model of a mixed flow nuclear main pump |
| title_sort | scale effect for hydraulic model of a mixed flow nuclear main pump |
| topic | Nuclear main pump Hydraulic model Scale effect Hydraulic performance Similarity conversion |
| url | http://www.sciencedirect.com/science/article/pii/S173857332400384X |
| work_keys_str_mv | AT taozhou scaleeffectforhydraulicmodelofamixedflownuclearmainpump AT yongzhu scaleeffectforhydraulicmodelofamixedflownuclearmainpump AT shengnantang scaleeffectforhydraulicmodelofamixedflownuclearmainpump |