Characterization on the melting failure of CuCrZr cooling tube of W/Cu monoblocks during plasma operations in EAST
Characterization on the melting failure of CuCrZr cooling tube of W/Cu monoblocks during plasma operations in EAST
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EAST 等离子体操作期间 W/Cu 整体块 CuCrZr 冷却管熔化故障的表征
DOI：
10.1016/j.nme.2020.100847
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发表时间：
2020-11
影响因子：
2.6
通讯作者：
Yang Lei
中科院分区：
文献类型：
--
作者：
Changjun Li;Dahuan Zhu;Rui Ding;Baoguo Wang;Junling Chen;Binfu Gao;Yang Lei
当前托卡马克中类似 ITER 的 W/Cu 等离子体组件在复杂条件下的行为是 ITER 的主要关注点之一。 EAST自2014年起以类似ITER的钨/铜整体块为目标安装了全上钨偏滤器。在2019年的等离子体活动期间，钨/铜整体块的CuCrZr冷却管发生熔化故障。由于冷却水的损失，前缘引起的热载荷会导致W铠装和CuCrZr冷却管熔化，这一点已通过热模拟和分析得到证实。随着熔化的铜通过间隙的移动和迁移，W/Cu整体块的CuCrZr冷却管的结构和功能被严重破坏。因此，必须更换那些失效的 W/Cu 整体块。 EAST中的这种情况只是模拟了未来设备中冷却剂意外流失的极端情况。 CuCrZr冷却管的熔化故障是由于在很大程度上未对准的整体体上没有冷却水的情况下运行引起的，这是其他采用或计划应用此类W/Cu整体体的托卡马克装置的一个重要教训。
The behavior of ITER-like W/Cu plasma facing components under complex conditions in current tokamaks is one of the main concerns for ITER. EAST has installed a full upper W divertor with the ITER-like W/Cu monoblocks as targets since 2014. A melting failure of CuCrZr cooling tube of W/Cu monoblocks has occurred during the plasma campaigns in 2019. Due to the loss of cooling water, the leading edge-induced thermal loading can lead to the melting of both W armor and CuCrZr cooling tube, which has been confirmed by thermal simulation and analysis. With movement and migration of the melted Cu through gaps, the structure and function of the CuCrZr cooling tube for W/Cu monoblocks was severely destroyed. As a result, those failed W/Cu monoblocks had to be replaced. Such case in EAST just simulates the extreme condition of accidental loss of coolant in future devices. The melting failure of CuCrZr cooling tube was caused by operation without coolant water at largely misaligned monoblocks, which is a key lesson referenced to other tokamaks which adopt or plan to apply such type of W/Cu monoblocks.
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DOI：
10.1016/j.fusengdes.2007.07.038
发表时间：
2007-10
期刊：
--
影响因子：
--
作者：
A. Martínez;F. Samaille;M. Chantant;J. Hatchressian
通讯作者：
A. Martínez;F. Samaille;M. Chantant;J. Hatchressian
影响因子：
2.2
作者：
B. Liu;S. Dai;G. Kawamura;L. Zhang;Y. Feng;D. Wang
通讯作者：
B. Liu;S. Dai;G. Kawamura;L. Zhang;Y. Feng;D. Wang
影响因子：
1.7
作者：
B. Gao;R. Ding;Hai Xie;L. Zeng;Ling Zhang;Baoguo Wang;Changjun Li;Dahuan Zhu;R. Yan;Junling Chen
通讯作者：
B. Gao;R. Ding;Hai Xie;L. Zeng;Ling Zhang;Baoguo Wang;Changjun Li;Dahuan Zhu;R. Yan;Junling Chen
影响因子：
2.2
作者：
S. Krasheninnikov;A. Pigarov;R. Smirnov;M. Rosenberg;Y. Tanaka;D J Benson;T. K. Soboleva;T. Rognlien;D. Mendis;B. Bray;D. Rudakov;J H Yu;W. West;A. Roquemore;C. H. Skinner;John R. Terry;B. Lipschultz;A. Bader;R. Granetz;C. Pitcher;N. Ohno;S. Takamura;S. Masuzaki;N. Ashikawa;M. Shiratani;M. Tokitani;R. Kumazawa;N. Asakura;T. Nakano;A. Litnovsky;R. Maqueda
通讯作者：
S. Krasheninnikov;A. Pigarov;R. Smirnov;M. Rosenberg;Y. Tanaka;D J Benson;T. K. Soboleva;T. Rognlien;D. Mendis;B. Bray;D. Rudakov;J H Yu;W. West;A. Roquemore;C. H. Skinner;John R. Terry;B. Lipschultz;A. Bader;R. Granetz;C. Pitcher;N. Ohno;S. Takamura;S. Masuzaki;N. Ashikawa;M. Shiratani;M. Tokitani;R. Kumazawa;N. Asakura;T. Nakano;A. Litnovsky;R. Maqueda
影响因子：
1.7
作者：
M. Merola;J. Palmer
通讯作者：
M. Merola;J. Palmer