当前位置: X-MOL 学术J. Nucl. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
High-heat-flux technologies for the European demo divertor targets: State-of-the-art and a review of the latest testing campaign
Journal of Nuclear Materials ( IF 3.1 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.jnucmat.2020.152670
J.H. You , E. Visca , T. Barrett , B. Böswirth , F. Crescenzi , F. Domptail , G. Dose , M. Fursdon , F. Gallay , H. Greuner , K. Hunger , A. Lukenskas , A.v. Müller , M. Richou , S. Roccella , C. Vorpahl , K. Zhang

Divertor target is one of the most critical in-vessel components in a fusion power plant being in charge of particle and power exhaust. The targets are exposed to severe thermal loads produced by steady bombardment of impinging plasma flux. Since 2014, integrated R&D efforts have been continued aiming at developing a design concept and high-heat-flux (HHF) technologies for divertor targets of the European DEMO reactor. Recently, the second round (2017–2019) of the R&D program has been concluded. As in the first R&D round, five water-cooled target design concepts were further developed and evaluated. Fabrication technologies were improved reaching a consolidated production quality. Extensive HHF tests were conducted using small-scale mock-ups for extended loading regimes (heat flux: 20–32MW/m²). Comparative studies were performed to investigate effects of copper interlayer thickness (0.1–1 mm) and different tungsten armor materials. In the present paper, the final results of the second round HHF testing campaign are reported. The HHF performance of each design variant is discussed based on in-situ diagnostic data (infrared thermography), ultrasonic inspection images and postmortem metallographic micrographs. All monoblock-type design concepts passed the specified qualification criterion (≥500 pulses at 20 MW/m², coolant: 130 °C) without any failure or armor cracking. Moreover, two of them (ITER-like and composite pipe) remained fully intact even under 25 MW/m² (100 pulses) and 32 MW/m² (5 pulses).



中文翻译:

针对欧洲演示滤光片目标的高通量技术:最新技术和最新测试活动的回顾

转移目标是聚变电厂中负责颗粒和动力排放的最关键的船内组件之一。靶子受到撞击等离子体流的稳定轰击所产生的严重热负荷。自2014年以来,继续进行综合研发工作,旨在为欧洲DEMO反应堆的分流器目标开发设计概念和高热通量(HHF)技术。最近,研发计划的第二轮(2017-2019年)已经结束。与第一轮研发一样,进一步开发和评估了五个水冷目标设计概念。改进了制造技术,以达到稳定的生产质量。使用小型模型对扩展的载荷范围(热通量:20–32MW /m²)进行了广泛的HHF测试。进行了比较研究,以研究铜中间层厚度(0.1-1 mm)和不同的钨铠装材料的影响。在本文中,报告了第二轮HHF测试活动的最终结果。基于现场诊断数据(红外热成像),超声检查图像和事后金相显微照片,讨论了每种设计变型的HHF性能。所有单体式设计方案均通过指定的鉴定标准(在20 MW /m²时≥500脉冲,冷却剂:130°C),没有任何故障或装甲破裂。此外,即使在25 MW /m²(100脉冲)和32 MW /m²(5脉冲)下,它们中的两个(类似ITER的管道和复合管)仍保持完好无损。报告了第二轮HHF测试活动的最终结果。基于现场诊断数据(红外热成像),超声检查图像和事后金相显微照片,讨论了每种设计变型的HHF性能。所有单体式设计方案均通过指定的鉴定标准(在20 MW /m²时≥500脉冲,冷却剂:130°C),没有任何故障或装甲破裂。此外,即使在25 MW /m²(100脉冲)和32 MW /m²(5脉冲)下,它们中的两个(类似ITER的管道和复合管)仍保持完好无损。报告了第二轮HHF测试活动的最终结果。基于现场诊断数据(红外热成像),超声检查图像和事后金相显微照片,讨论了每种设计变型的HHF性能。所有单体式设计方案均通过指定的鉴定标准(在20 MW /m²时≥500脉冲,冷却剂:130°C),没有任何故障或装甲破裂。此外,即使在25 MW /m²(100脉冲)和32 MW /m²(5脉冲)下,它们中的两个(类似ITER的管道和复合管)仍保持完好无损。所有单体式设计方案均通过指定的鉴定标准(在20 MW /m²时≥500脉冲,冷却剂:130°C),没有任何故障或装甲破裂。此外,即使在25 MW /m²(100脉冲)和32 MW /m²(5脉冲)下,它们中的两个(类似ITER的管道和复合管)仍保持完好无损。所有单体式设计概念均通过了指定的资格标准(在20 MW /m²时≥500脉冲,冷却剂:130°C),没有任何故障或装甲破裂。此外,即使在25 MW /m²(100脉冲)和32 MW /m²(5脉冲)下,它们中的两个(类似ITER的管道和复合管)仍保持完好无损。

更新日期:2020-12-08
down
wechat
bug