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首页> 外文期刊>Nuclear Engineering and Design >Burn-up determination and accident testing of HTR-PM fuel elements irradiated in the HFR Petten
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Burn-up determination and accident testing of HTR-PM fuel elements irradiated in the HFR Petten

机译：HFR Petten辐射的HTR-PM燃料元件的燃尽确定和事故测试

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摘要

The current paper reports the results of gamma spectroscopic burn-up determination and KuFA safety testing at JRC Karlsruhe on spherical high-temperature reactor fuel elements, which were fabricated by the Institute of Nuclear and New Energy Technology of the Tsinghua University, Beijing. The fuel elements were irradiated in the High Flux Reactor, Petten, in the frame of the HFR-EU1 and HTR-PM campaigns and transported to JRC Karlsruhe for post-irradiation examination and accident testing in the KuFA device in the frame of a bilateral safety research study. Burn-up determination was performed on seven fuel elements based on the quantitative measurement of their Cs-137 inventories using an established gamma spectroscopy set-up in the JRC hot cell facilities. Accident testing was conducted on three HTR-PM fuel elements in several phases at simulated accident temperatures between 1620 degrees C and 1770 degrees C for 150 h to simulate hypothetical depressurization and loss-offorced circulation accidents. The release of Kr-85 was measured during the tests in a cold trap and solid fission product release was determined by gamma spectroscopic analyses of exchangeable cold plates in a low background environment. After successful completion of the KuFA tests the fuel elements are currently undergoing further post-irradiation examinations including profile disintegration as well as ceramography and scanning electron microscopy of individual coated particles.
机译：本文报道了由清华大学核能与新能源技术研究所制造的JRC Karlsruhe球形高温反应堆燃料元件的γ光谱燃尽测定和KuFA安全性测试的结果。燃料元素在HFR-EU1和HTR-PM战役的框架中辐射到Petten的高通量反应堆中，并在双边安全框架下运输到JRC Karlsruhe，在KuFA设备中进行辐照后检查和事故测试。研究性学习。使用JRC热室设施中建立的伽马能谱设置对Cs-137库存进行定量测量，对七个燃料元件进行燃尽确定。在1620摄氏度和1770摄氏度之间的模拟事故温度下，对三个HTR-PM燃料元件进行了分阶段的事故测试，持续了150小时，以模拟假设的降压和强迫损失循环事故。在冷阱中的测试过程中测量了Kr-85的释放，并通过在低背景环境中对可交换冷板进行的伽马光谱分析确定了固体裂变产物的释放。在成功完成KuFA测试后，燃料元件目前正在接受进一步的辐照后检查，包括轮廓崩解以及单个涂层颗粒的陶瓷成像和扫描电子显微镜。

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  • 来源
    《Nuclear Engineering and Design》 |2020年第2期|110414.1-110414.6|共6页
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    European Commiss Directorate G Nucl Safety & Secur Joint Res Ctr Hermann von Helmholtz Pl 1 D-76344 Eggenstein Leopoldshafen Germany;

    European Commiss Directorate G Nucl Safety & Secur Joint Res Ctr Hermann von Helmholtz Pl 1 D-76344 Eggenstein Leopoldshafen Germany|Tsinghua Univ Inst Nucl & New Energy Technol Beijing 100084 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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