基于反应性平衡方程的PB-HTR换料决策方法

IF 3.2 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Progress in Nuclear Energy Pub Date : 2025-06-24 DOI:10.1016/j.pnucene.2025.105891

Zhongkai Sheng , Bing Xia , Ziwen Zhang , Ding She , Fu Li , Zuoyi Zhang

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引用次数: 0

摘要

球床高温气冷堆（PB-HTR）的主要挑战是在线连续换料，因为球床高温气冷堆采用的是在反应堆运行过程中不断流动的球形燃料元件。这给操作和在线燃料管理带来了挑战。提出了基于反应性平衡方程的PB-HTR换料决策方法。这是用来表征由测量的操作参数和反应性系数的乘积所引入的反应性。通过HTR-10的运行数据验证了该加油决策方法，预测加油速度与实际加油速度接近。该方法可应用于PB-HTR的换料过程，具有较好的工程应用价值。

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Refueling decision method in the PB-HTR based on the reactivity equilibrium equation

Main challenge of pebble-bed high temperature gas-cooled reactor (PB-HTR) is on-line continuous refueling, because PB-HTR adopts spherical fuel elements which flow continuously during operation of reactor. This leads to challenges during operation and on-line fuel management. The paper presents the refueling decision method based on the reactivity equilibrium equation in the PB-HTR. This is used to characterize the reactivity introduced by the product of the measured operation parameters and the reactivity coefficients. The refueling decision method is validated through operational data of HTR-10, and the predicted refueling speed is close to operational refueling speed. This method can be applied to the refueling process of PB-HTR, and is of great help to engineering.

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来源期刊

Progress in Nuclear Energy 工程技术-核科学技术

CiteScore

5.30

自引率

14.80%

发文量

331

审稿时长

3.5 months

期刊介绍： Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.