Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow
Bubble columns represent an extreme case of gas-liquid two-phase flow, where net liquid velocity is zero and the gas simply bubbles up through the liquid. The bubble column-type gas-liquid metal two-phase flow always appears in an accident scenario for pool-type lead-bismuth eutectic cooled fast bre...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.964171/full |
| _version_ | 1811340725243084800 |
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| author | Di Wang Xianghui Lu Suizheng Qiu Ren Liang Zhikang Lin Yong Ouyang |
| author_facet | Di Wang Xianghui Lu Suizheng Qiu Ren Liang Zhikang Lin Yong Ouyang |
| author_sort | Di Wang |
| collection | DOAJ |
| description | Bubble columns represent an extreme case of gas-liquid two-phase flow, where net liquid velocity is zero and the gas simply bubbles up through the liquid. The bubble column-type gas-liquid metal two-phase flow always appears in an accident scenario for pool-type lead-bismuth eutectic cooled fast breeder reactors. To accurately predict the void fraction for the accident evaluation and design of a reactor system, nine existing drift-flux type constitutive correlations are evaluated with a nitrogen-liquid heavy metal two-phase flow test. Few correlations give a relatively good prediction and the basic assumption in the distribution parameter calculation is not applicable for a bubble column. To solve this problem, analysis based on Clark’s theoretical model is carried out. The results show that the distribution parameter assumes very high values at a low Re number. As the Froude number increases, the distribution parameter tends to decrease. At lower void factions, the distribution parameter is also assumed to be at high values. This indicates that the pipe size, flow rate, and void fraction can all influence the distribution parameter. Considering the quantitative laws of these influence factors obtained by theoretical analysis and fitting the data of Ariyoshi’s test, a new correlation for a bubble column-type gas-LBE two-phase flow is developed and evaluated. The results of the statistical analysis show that the new correlation gives the best prediction for gas-LBE two-phase flow in the void fraction range of 0.018–0.313. |
| first_indexed | 2024-04-13T18:46:07Z |
| format | Article |
| id | doaj.art-4f73e3f1e5e545a3a063d2a624666d03 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-13T18:46:07Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-4f73e3f1e5e545a3a063d2a624666d032022-12-22T02:34:34ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-08-011010.3389/fenrg.2022.964171964171Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flowDi Wang0Xianghui Lu1Suizheng Qiu2Ren Liang3Zhikang Lin4Yong Ouyang5China Nuclear Power Technology Research Institute, Shenzhen, ChinaChina Nuclear Power Technology Research Institute, Shenzhen, ChinaSchool of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, ChinaChina Nuclear Power Technology Research Institute, Shenzhen, ChinaChina Nuclear Power Technology Research Institute, Shenzhen, ChinaChina Nuclear Power Technology Research Institute, Shenzhen, ChinaBubble columns represent an extreme case of gas-liquid two-phase flow, where net liquid velocity is zero and the gas simply bubbles up through the liquid. The bubble column-type gas-liquid metal two-phase flow always appears in an accident scenario for pool-type lead-bismuth eutectic cooled fast breeder reactors. To accurately predict the void fraction for the accident evaluation and design of a reactor system, nine existing drift-flux type constitutive correlations are evaluated with a nitrogen-liquid heavy metal two-phase flow test. Few correlations give a relatively good prediction and the basic assumption in the distribution parameter calculation is not applicable for a bubble column. To solve this problem, analysis based on Clark’s theoretical model is carried out. The results show that the distribution parameter assumes very high values at a low Re number. As the Froude number increases, the distribution parameter tends to decrease. At lower void factions, the distribution parameter is also assumed to be at high values. This indicates that the pipe size, flow rate, and void fraction can all influence the distribution parameter. Considering the quantitative laws of these influence factors obtained by theoretical analysis and fitting the data of Ariyoshi’s test, a new correlation for a bubble column-type gas-LBE two-phase flow is developed and evaluated. The results of the statistical analysis show that the new correlation gives the best prediction for gas-LBE two-phase flow in the void fraction range of 0.018–0.313.https://www.frontiersin.org/articles/10.3389/fenrg.2022.964171/fullgas-LBE two-phase flowdrift-flux modelfast reactorvoid fractionbubble column |
| spellingShingle | Di Wang Xianghui Lu Suizheng Qiu Ren Liang Zhikang Lin Yong Ouyang Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow Frontiers in Energy Research gas-LBE two-phase flow drift-flux model fast reactor void fraction bubble column |
| title | Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow |
| title_full | Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow |
| title_fullStr | Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow |
| title_full_unstemmed | Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow |
| title_short | Development of drift-flux correlations for vertical forward bubble column-type gas-liquid lead-bismuth two-phase flow |
| title_sort | development of drift flux correlations for vertical forward bubble column type gas liquid lead bismuth two phase flow |
| topic | gas-LBE two-phase flow drift-flux model fast reactor void fraction bubble column |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.964171/full |
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