Thermal and Mechanical Analysis of a U-Neck Vacuum Barrier
A vacuum barrier is necessary in the superconducting tokamak, to separate the high reliability main cryostat from the vacuum environments of other systems, like the cryogenic system, which is easier to leak due to the numerous openings for the control and safety valves. Because the vacuum barrier mu...
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| Veröffentlicht in: | Journal of fusion energy 2015-08, Vol.34 (4), p.827-832 |
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| container_end_page | 832 |
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| container_issue | 4 |
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| container_title | Journal of fusion energy |
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| creator | Wang, Zhongwei Song, Yuntao Lu, Kun Zhou, Tingzhi Ding, Kaizhong Ni, Xiaojun |
| description | A vacuum barrier is necessary in the superconducting tokamak, to separate the high reliability main cryostat from the vacuum environments of other systems, like the cryogenic system, which is easier to leak due to the numerous openings for the control and safety valves. Because the vacuum barrier must have a separate plate between the two vacuum environments, all the cryogenic pipelines have to get through the plate with proper sealing, so there is a direct connection from the cryogenic pipeline to the outer duct, that is exposed to the atmosphere and at room temperature. Therefore, the heat load through the vacuum barrier to the cryogenic system must be carefully dealt with. Meanwhile, the vacuum barrier may face a pressure difference between the two sides in some cases, like a leakage accident, so the vacuum barrier should withstand this situation. This paper describes the thermal and mechanical analysis of a U-neck vacuum barrier, which is good at reducting the heat load to the cryogenic system, and is capable to resist the pressure from one side. |
| doi_str_mv | 10.1007/s10894-014-9840-0 |
| format | Article |
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Because the vacuum barrier must have a separate plate between the two vacuum environments, all the cryogenic pipelines have to get through the plate with proper sealing, so there is a direct connection from the cryogenic pipeline to the outer duct, that is exposed to the atmosphere and at room temperature. Therefore, the heat load through the vacuum barrier to the cryogenic system must be carefully dealt with. Meanwhile, the vacuum barrier may face a pressure difference between the two sides in some cases, like a leakage accident, so the vacuum barrier should withstand this situation. 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Because the vacuum barrier must have a separate plate between the two vacuum environments, all the cryogenic pipelines have to get through the plate with proper sealing, so there is a direct connection from the cryogenic pipeline to the outer duct, that is exposed to the atmosphere and at room temperature. Therefore, the heat load through the vacuum barrier to the cryogenic system must be carefully dealt with. Meanwhile, the vacuum barrier may face a pressure difference between the two sides in some cases, like a leakage accident, so the vacuum barrier should withstand this situation. This paper describes the thermal and mechanical analysis of a U-neck vacuum barrier, which is good at reducting the heat load to the cryogenic system, and is capable to resist the pressure from one side.</description><subject>Analysis</subject><subject>Bending stresses</subject><subject>Boundary conditions</subject><subject>Cryogenic equipment</subject><subject>Energy Systems</subject><subject>Heat</subject><subject>Helium</subject><subject>Mechanical analysis</subject><subject>Nuclear Energy</subject><subject>Nuclear Fusion</subject><subject>Original Research</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Plasma Physics</subject><subject>Radiation</subject><subject>Room temperature</subject><subject>Safety valves</subject><subject>Superconductors</subject><subject>Sustainable Development</subject><issn>0164-0313</issn><issn>1572-9591</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kElPwzAQhS0EEqXwA7hF4pwyEztxzK1UbBLLpeVqOV7alCzFbg7997gKEic0h9HMvG_09Ai5RpghAL8NCKVgKSBLRckghRMywZxnqcgFnpIJYBGvFOk5uQhhCwBRJibkbrmxvlVNojqTvFm9UV2t4zjvVHMIdUh6l6hklb5b_ZV8Kj0MbXKvvK-tvyRnTjXBXv32KVk9PiwXz-nrx9PLYv6aagp8nxbMoaMVoAasMiWYrUqOzmHmckMFLxnLnXGFMYKWhQPDqakc41xQikJzOiU349-d778HG_Zy2w8--gsyE1hSEBi1UzIbVWvVWFl3rt97pWMZ29a676yr437OkTHBOSsigCOgfR-Ct07ufN0qf5AI8pipHDOVMVN5zFRCZLKRCVHbra3_s_I_9AMtuna1</recordid><startdate>20150801</startdate><enddate>20150801</enddate><creator>Wang, Zhongwei</creator><creator>Song, Yuntao</creator><creator>Lu, Kun</creator><creator>Zhou, Tingzhi</creator><creator>Ding, Kaizhong</creator><creator>Ni, Xiaojun</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20150801</creationdate><title>Thermal and Mechanical Analysis of a U-Neck Vacuum Barrier</title><author>Wang, Zhongwei ; Song, Yuntao ; Lu, Kun ; Zhou, Tingzhi ; Ding, Kaizhong ; Ni, Xiaojun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-64f1f3b01c01b2a94eb871ff12f5d3978445fdf6dd9386f0d73dbf47793319c73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Analysis</topic><topic>Bending stresses</topic><topic>Boundary conditions</topic><topic>Cryogenic equipment</topic><topic>Energy Systems</topic><topic>Heat</topic><topic>Helium</topic><topic>Mechanical analysis</topic><topic>Nuclear Energy</topic><topic>Nuclear Fusion</topic><topic>Original Research</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Plasma Physics</topic><topic>Radiation</topic><topic>Room temperature</topic><topic>Safety valves</topic><topic>Superconductors</topic><topic>Sustainable Development</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Zhongwei</creatorcontrib><creatorcontrib>Song, Yuntao</creatorcontrib><creatorcontrib>Lu, Kun</creatorcontrib><creatorcontrib>Zhou, Tingzhi</creatorcontrib><creatorcontrib>Ding, Kaizhong</creatorcontrib><creatorcontrib>Ni, Xiaojun</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><jtitle>Journal of fusion energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Zhongwei</au><au>Song, Yuntao</au><au>Lu, Kun</au><au>Zhou, Tingzhi</au><au>Ding, Kaizhong</au><au>Ni, Xiaojun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal and Mechanical Analysis of a U-Neck Vacuum Barrier</atitle><jtitle>Journal of fusion energy</jtitle><stitle>J Fusion Energ</stitle><date>2015-08-01</date><risdate>2015</risdate><volume>34</volume><issue>4</issue><spage>827</spage><epage>832</epage><pages>827-832</pages><issn>0164-0313</issn><eissn>1572-9591</eissn><abstract>A vacuum barrier is necessary in the superconducting tokamak, to separate the high reliability main cryostat from the vacuum environments of other systems, like the cryogenic system, which is easier to leak due to the numerous openings for the control and safety valves. 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| subjects | Analysis Bending stresses Boundary conditions Cryogenic equipment Energy Systems Heat Helium Mechanical analysis Nuclear Energy Nuclear Fusion Original Research Physics Physics and Astronomy Plasma Physics Radiation Room temperature Safety valves Superconductors Sustainable Development |
| title | Thermal and Mechanical Analysis of a U-Neck Vacuum Barrier |
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