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| Content Provider | frontiers |
|---|---|
| Author | Chao, Wen-xiong Shi, Bao-lu Ruan, Hui Dong, Wei |
| Abstract | Addressing the cavitation prevention requirements for a longer service life of the high-speed centrifugal pump in the temperature cycling temperature control system of aerospace, the effect of blade inlet width on cavitation performance is studied on the premise of consistency of impeller outlet diameter D2, impeller outlet width b2, volute inlet diameter D3, pump interface and other structural parameters. Therefore, the corrected coefficient k1 of blade inlet exclusion is introduced; four groups of centrifugal impellers of blades with inlets of different geometric structures are put forward. To begin with, based on the D pump performance test and Pumplinx simulation, the cavitation performance of in high-speed pump with four different groups of impellers is studied under 5 working conditions of negative inlet pressure (Pj=(-20, -30, -40, -50, -60)kPa) on the premise that energy characteristics agree well with cavitation performance. According to the results, when Pj drops from -50kPa to -60kPa, the cavitation performance in the pump changes the most significantly. The severity of cavitation in the pump is in order: C>D>B>A, and the cavitation loop 4-3-1-2. This indicates that the method of twisting the centrifugal impeller of the suspended forward-extended blade shows a significant effect in preventing cavitation performance under such working conditions of high speed and negative pressure. Its application in aerospace power systems can effectively reduce the impact of low pressure in the system and significantly improve the cavitation performance. |
| ISSN | 2296598X |
| DOI | 10.3389/fenrg.2022.811690 |
| Volume Number | 10 |
| Journal | Frontiers in Energy Research |
| Language | English |
| Publisher Date | 2022-07-01 |
| Access Restriction | Open |
| Subject Keyword | Cavitation Ethylene glycol aqueous solution TH311 Document code: A 0 Preface Twisted overhung forward-extended Impeller type High-speed centrifugal pump Numerical simulation CLC Number: TH137 |
| Content Type | Text |
| Resource Type | Article |
| Subject | Economics and Econometrics Renewable Energy, Sustainability and the Environment Fuel Technology Energy Engineering and Power Technology |
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