RELAP5 Foresight Thermal-Hydraulic Analysis of Hypothesis Passive Safety Injection System under LOCA for an Existing NPP in China
Joint Authors
Sun, Lin
Wang, Xuesong
Liu, Meiru
Xia, Genglei
Wang, Jun
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-28
Country of Publication
Egypt
No. of Pages
14
Abstract EN
Qinshan nuclear power plant is the first large Chinese-designed nuclear power station based on pressurized water reactor, and the second generation main stream active safety injection system is adopted for Qinshan nuclear power plant.
In this paper, a novel passive safety injection system (PSIS) has been proposed for ocean-based Qinshan Phase One nuclear power plant to replace the original active one.
The PSIS contains high-pressure, medium-pressure, and lower-pressure safety injection systems, and a two-stage automatic depressurization system.
To evaluate the system performance, small-break LOCA has been investigated using RELAP5.
Various break sizes and locations including 2-inch, 10-inch cold leg break, and double-ended direct vessel injection line break were analyzed.
Key safety parameters such as safe injection mass flow rates, coolant level of the core, system pressure, and fuel cladding temperature were monitored during the accident process.
The results illustrate that the performance of the safety injection system can guarantee the effective core cooling and submerged under different LOCA even with only half of the safety injection system, which can fulfill the single failure criteria.
The thermal-hydraulic analysis for the Qinshan passive safety injection system is significant to master the related technologies for Chinese engineer and develop the Chinese-designed third-generation nuclear power plants, and the PSIS can guarantee the reactor submerged under LOCA even plus the station block out accident.
American Psychological Association (APA)
Sun, Lin& Wang, Xuesong& Wang, Jun& Liu, Meiru& Xia, Genglei. 2020. RELAP5 Foresight Thermal-Hydraulic Analysis of Hypothesis Passive Safety Injection System under LOCA for an Existing NPP in China. Science and Technology of Nuclear Installations،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1209503
Modern Language Association (MLA)
Sun, Lin…[et al.]. RELAP5 Foresight Thermal-Hydraulic Analysis of Hypothesis Passive Safety Injection System under LOCA for an Existing NPP in China. Science and Technology of Nuclear Installations No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1209503
American Medical Association (AMA)
Sun, Lin& Wang, Xuesong& Wang, Jun& Liu, Meiru& Xia, Genglei. RELAP5 Foresight Thermal-Hydraulic Analysis of Hypothesis Passive Safety Injection System under LOCA for an Existing NPP in China. Science and Technology of Nuclear Installations. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1209503
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209503