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Simulation of containment pressurization in a large break-loss of coolant accident using single cell and multicell models and CONTAIN code

Noorikalkhoran, Omid, Shirani, Amir Saied and Ahangari, Rohollah 2016. Simulation of containment pressurization in a large break-loss of coolant accident using single cell and multicell models and CONTAIN code. Nuclear Engineering and Technology 48 (5) , pp. 1140-1153. 10.1016/j.net.2016.03.008

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Abstract

Since the inception of nuclear power as a commercial energy source, safety has been recognized as a prime consideration in the design, construction, operation, maintenance, and decommissioning of nuclear power plants. The release of radioactivity to the environment requires the failure of multiple safety systems and the breach of three physical barriers: fuel cladding, the reactor cooling system, and containment. In this study, nuclear reactor containment pressurization has been modeled in a large break-loss of coolant accident (LB-LOCA) by programming single-cell and multicell models in MATLAB. First, containment has been considered as a control volume (single-cell model). In addition, spray operation has been added to this model. In the second step, the single-cell model has been developed into a multicell model to consider the effects of the nodalization and spatial location of cells in the containment pressurization in comparison with the single-cell model. In the third step, the accident has been simulated using the CONTAIN 2.0 code. Finally, Bushehr nuclear power plant (BNPP) containment has been considered as a case study. The results of BNPP containment pressurization due to LB-LOCA have been compared between models, final safety analysis report, and CONTAIN code’s results.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: KOREAN NUCLEAR SOC
ISSN: 1738-5733
Date of Acceptance: 16 March 2016
Last Modified: 03 Sep 2019 09:00
URI: http://orca.cf.ac.uk/id/eprint/107238

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