PWRs和SFRs中钚多重回收方案之间中断的影响

IF 0.9 Q3 NUCLEAR SCIENCE & TECHNOLOGY EPJ Nuclear Sciences & Technologies Pub Date : 2021-01-01 DOI:10.1051/epjn/2021018
Jiali Liang, M. Ernoult, X. Doligez, S. David, N. Thiollière
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引用次数: 0

摘要

近十年来,对未来铀需求的估计发生了很大变化,SFR的竞争力再次受到质疑。在这方面,法国宣布了最近几十年在压水堆中多次回收钚的计划,以取代未来部署SFR的目标。然而,关于未来反应堆系统的中期政策总是不确定的,SFR部署的需求可能会再次大幅增加。本研究探讨了这种可能性,并分析了不同钚多重回收策略之间来回的后果。将新开发的鲁棒性评估方法应用于该问题,考虑到客观干扰,考虑到核未来的深度不确定性。首先分析了两种钚多重循环的先前轨迹,一种涉及在压水堆中使用MIX燃料,另一种考虑SFR的部署。然后,在重新考虑未来SFR部署的情况下,假设使用MIX的战略中断。为了量化使用MIX对部署时间的影响,我们研究了用SFRs替代舰队可以完成的最早时间。作为补充,在停止新SFR启动的背景下,先前的SFR部署策略也被打乱。压水堆中钚的多次回收是一种自适应策略,其目的是尽量减少钚的闲置。在这些稳健性评估中,分析了许多利益输出,以便对先前策略的后果进行全面评估,考虑到不确定的中断和最优调整。
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Impact of disruption between options of plutonium multi-recycling in PWRs and in SFRs
During the recent ten years, the estimation of future uranium demands has changed greatly, and SFR competitiveness is called again into question. In this context, a planning of plutonium multi-recycling in PWRs for the near-term decades has been announced in France, which replaces the objective of future SFR deployment. However, the mid-term policy concerning the future reactor system is always uncertain, and the demand of SFR deployment may re-increase significantly. This study looks into this possibility and analyzes the consequences of such back and forth between different plutonium multi-recycling strategies. The newly developed methodology of robustness assessment is applied to the problem, considering the objective disruptions to take into account the deep uncertainties about nuclear future. Two prior trajectories of plutonium multi-recycling, one involving the use of MIX fuel in PWRs and the other considering the SFR deployment, are analyzed first. The disruption of the strategy using MIX is then supposed under the re-consideration of future SFR deployment. To quantify the impacts of using MIX on deployment timing, we investigate the earliest time for which the fleet substitution with SFRs can be completed. To supplement, the prior strategy of SFR deployment is also disrupted under the context of halting the start of new SFR. The plutonium multi-recycling in PWRs, regarded as adaptive strategy, aims to minimize the idle plutonium. In these robustness assessments, numerous outputs of interests are analyzed, in order to provide a comprehensive evaluation of consequences of prior strategies, regarding the uncertain disruptions and optimal readjustments.
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来源期刊
EPJ Nuclear Sciences & Technologies
EPJ Nuclear Sciences & Technologies NUCLEAR SCIENCE & TECHNOLOGY-
CiteScore
1.00
自引率
20.00%
发文量
18
审稿时长
10 weeks
期刊最新文献
Technical note: stable and unstable reactors Templates of expected measurement uncertainties for neutron-induced capture and charged-particle production cross section observables Templates of expected measurement uncertainties for (n, xn) cross sections Templates of expected measurement uncertainties for total neutron cross-section observables Templates of expected measurement uncertainties for prompt fission neutron spectra
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