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Construction of a Test Facility and the Test of an Active Tritium Permeation Barrier 试验设施的建设和活性氚渗透屏障的试验

4区工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY

Fusion Science and Technology

Pub Date : 2023-09-14 DOI: 10.1080/15361055.2023.2240638

Joshua Kohpeiss, Stefan Welte, Ion Cristescu, Nancy Tuchscherer

AbstractIn future fusion or fission reactors, tritium permeation may present a serious challenge. In order to separate the water steam cycle from gas streams containing significant amounts of tritium, a permeation barrier is necessary. Tritium permeation into the environment through steam generators and heat exchangers can be a significant hazard regarding radiation and environmental safety. In the scope of the project TRANSversal Actions for Tritium (TRANSAT), a facility has been set up to perform tests on various scaled and functioning permeation barrier mock-ups at the Tritium Laboratory Karlsruhe (TLK). The facility was built in a standard glove-box unit in accordance to the technical terms and requirements of tritium handling at TLK. The behavior of an active permeation barrier was investigated. Within the first series of TRANSAT experiments, four different mock-ups have been tested for tritium permeation. Migrated tritium is oxidized to tritiated water (HTO) using Carulite reactors and molecular sieves for HTO trapping. This paper will present the construction, setup, and commissioning of the facility as well as the first series of TRANSAT experiments including their evaluation.Keywords: Tritium permeation experimentactive permeation barriertritium test facilityTritium Laboratory Karlsruhe AcknowledgmentsThis work was done in the frame of the TRANSAT project. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors thank the staff from TLK for the fruitful collaboration during the setup of the facility.Disclosure StatementNo potential conflict of interest was reported by the authors.

在未来的聚变或裂变反应堆中，氚渗透可能会面临严峻的挑战。为了将水蒸汽循环从含有大量氚的气流中分离出来，必须有一个渗透屏障。氚通过蒸汽发生器和热交换器渗透到环境中可能对辐射和环境安全造成重大危害。在transversversactions for Tritium (TRANSAT)项目的范围内，已经在卡尔斯鲁厄氚实验室(TLK)建立了一个设施，对各种规模和功能的渗透屏障模型进行测试。根据TLK处理氚的技术术语和要求，该设施采用标准的手套箱单元建造。研究了活性渗透屏障的行为。在TRANSAT的第一个系列实验中，已经测试了四种不同的氚渗透模型。迁移的氚被氧化成氚化水(HTO)，使用孔雀石反应器和分子筛捕获HTO。本文将介绍该设施的建设、设置和调试，以及TRANSAT的第一系列实验，包括它们的评估。关键词:氚渗透实验活性渗透屏障氚测试设备氚实验室卡尔斯鲁厄此处表达的观点和意见不一定反映欧洲委员会的观点和意见。作者感谢TLK的工作人员在设施的建立过程中进行了卓有成效的合作。披露声明作者未报告潜在利益冲突。

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