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http://dx.doi.org/10.1016/j.net.2018.08.011

Transient safety analysis of M2LFR-1000 reactor using ATHLET  

Shen, Chong (Department of Engineering and Applied Physics, University of Science and Technology of China)
Zhang, Xilin (Department of Engineering and Applied Physics, University of Science and Technology of China)
Wang, Chi (Department of Engineering and Applied Physics, University of Science and Technology of China)
Cao, Liankai (Department of Engineering and Applied Physics, University of Science and Technology of China)
Chen, Hongli (Department of Engineering and Applied Physics, University of Science and Technology of China)
Publication Information
Nuclear Engineering and Technology / v.51, no.1, 2019 , pp. 116-124 More about this Journal
Abstract
$M^2LFR-1000$ is a medium-power modular lead-cooled fast reactor, developed by University of Science and Technology of China (USTC), aiming at achieving a reactor design fulfilling the Gen IV nuclear system requirements and meanwhile emphasizing the optimum safety and economics. In order to evaluate the safety performance of $M^2LFR-1000$ reactor core, three typical transients are selected from initiating events, which are unprotected transient overpower (UTOP), unprotected loss of offsite power (ULOHS+ULOF) and increase of feedwater flowrate with primary pumps trip (IFW+PLOF). These three transients presented and discussed in this paper are performed with the code Analysis of THermal-hydraulics of LEaks and Transients (ATHLET), which is developed by Gesellschaft $f{\ddot{u}}r$ Anlagen-und Reaktorsicherheit gGmbH (GRS). The results indicate that the $M^2LFR$ is safe enough under these three transients due to the good inherent safety features of the reactor, without human intervention, the reactor will reach a new steady state under UTOP condition.
Keywords
Transient analysis; LFR; Forced circulation; ATHLET;
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