Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition
In the Experimental Advanced Superconducting Tokamak (EAST), the water in the cooling channel of the divertor needs to be pushed out by the blowout system to avoid water leakage, otherwise it will further endanger the safe operation. However, diffusers often used to change the pipe size have an adve...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722021151 |
| _version_ | 1828063347787956224 |
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| author | Weibao Li Junling Chen Jiansheng Hu Lei Yang Bin Guo Lili Zhu Guangqiang Liu |
| author_facet | Weibao Li Junling Chen Jiansheng Hu Lei Yang Bin Guo Lili Zhu Guangqiang Liu |
| author_sort | Weibao Li |
| collection | DOAJ |
| description | In the Experimental Advanced Superconducting Tokamak (EAST), the water in the cooling channel of the divertor needs to be pushed out by the blowout system to avoid water leakage, otherwise it will further endanger the safe operation. However, diffusers often used to change the pipe size have an adverse effect on the water discharge in divertors. Therefore, research on the blowout process in the divertor and diffuser is essential to improving the dryness of the blowout system. In this paper, the mutual restriction between divertor and diffuser is proposed by the experiment research, such restriction is an important factor in reducing the dryness of the divertor. According to the experimental results, the larger the resistance loss is in the divertor, the smaller the effective pressure difference will be in the diffuser. Meanwhile, liquid phase water flows rotationally in the diffuser under a small pressure difference, thus reducing the dryness of the divertor. Moreover, the diffuser increases the pressure difference required for complete blowout in the divertor. These results will provide a reference for the design and optimization of the EAST blowout system in the future. |
| first_indexed | 2024-04-10T22:41:48Z |
| format | Article |
| id | doaj.art-80f7969c3a344471b081ca3171841953 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T22:41:48Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-80f7969c3a344471b081ca31718419532023-01-16T04:08:39ZengElsevierEnergy Reports2352-48472022-11-01810461054Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout conditionWeibao Li0Junling Chen1Jiansheng Hu2Lei Yang3Bin Guo4Lili Zhu5Guangqiang Liu6Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; Corresponding author.Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, ChinaSchool of Civil Engineer, University of Science and Technology Liaoning, Anshan 114051, ChinaIn the Experimental Advanced Superconducting Tokamak (EAST), the water in the cooling channel of the divertor needs to be pushed out by the blowout system to avoid water leakage, otherwise it will further endanger the safe operation. However, diffusers often used to change the pipe size have an adverse effect on the water discharge in divertors. Therefore, research on the blowout process in the divertor and diffuser is essential to improving the dryness of the blowout system. In this paper, the mutual restriction between divertor and diffuser is proposed by the experiment research, such restriction is an important factor in reducing the dryness of the divertor. According to the experimental results, the larger the resistance loss is in the divertor, the smaller the effective pressure difference will be in the diffuser. Meanwhile, liquid phase water flows rotationally in the diffuser under a small pressure difference, thus reducing the dryness of the divertor. Moreover, the diffuser increases the pressure difference required for complete blowout in the divertor. These results will provide a reference for the design and optimization of the EAST blowout system in the future.http://www.sciencedirect.com/science/article/pii/S2352484722021151TokamakExperimentBlowoutDivertorDiffuser |
| spellingShingle | Weibao Li Junling Chen Jiansheng Hu Lei Yang Bin Guo Lili Zhu Guangqiang Liu Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition Energy Reports Tokamak Experiment Blowout Divertor Diffuser |
| title | Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition |
| title_full | Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition |
| title_fullStr | Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition |
| title_full_unstemmed | Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition |
| title_short | Experimental study on the phenomenon of gas–liquid flow in divertor and diffuser under blowout condition |
| title_sort | experimental study on the phenomenon of gas liquid flow in divertor and diffuser under blowout condition |
| topic | Tokamak Experiment Blowout Divertor Diffuser |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722021151 |
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