Severe accident analysis of plant-specific spent fuel pool to support a SFP risk and accident management

Ahn, Kwang-Il; Shin, Jae-Uk; Kim, Won‐Tae

doi:10.1016/j.anucene.2015.11.024

Cited by 20 publications

(7 citation statements)

References 4 publications

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“…Several thermal hydraulic studies on the initiating events have also been performed. These studies are often used to support PSA because they reveal crucial information on SFP behaviour [8,9].…”

Section: Event Sequence Modellingmentioning

confidence: 99%

Probabilistic safety assessment of Koeberg spent fuel pool

Thabethe

2022

APP

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The effective management of spent fuel pool (SFP) safety has been raised as one of the emerging issues to further enhance nuclear installation safety after the Fukushima accident on March 11, 2011. SFP safety-related issues have been mainly focused on (a) controlling the configuration of the fuel assemblies in the pool with no loss of pool coolants, and (b) ensuring adequate pool storage space nto prevent fuel criticality owing to chain reactions of the fission products and the ability for neutron absorption to keep the fuel cool. In support of regulatory functions, the Centre for Nuclear Safety and Security (CNSS) seeks to perform confirmatory analysis for all potential accident scenarios that may occur in the Koeberg nuclear power plant SFP. Probabilistic safety assessment (PSA) was done using the Systems Analysis Program for Hands-On Integrated Reliability Evaluations (SAPHIRE) computer code. We present preliminary PSA results of initiating events that lead to boiling and cause fuel uncovering, resulting in possible fuel damage in the Koeberg nuclear power plant SFP.

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Section: Event Sequence Modellingmentioning

confidence: 99%

Probabilistic safety assessment of Koeberg spent fuel pool

Thabethe

2022

APP

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“…Nowadays, more than 400 NPPs have built SFPs around the world. However, following the 2011 Fukushima nuclear accident in Japan, researchers realized the possibility of the serious failure of SFP cooling systems [7,8] and this accident led to the introduction of greater requirements for the way spent fuel is cooled.…”

Section: Introductionmentioning

confidence: 99%

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

Wang

Tang

et al. 2023

Energies

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Nuclear power plants (NPPs) produce large amounts of spent fuel while generating electricity. After the spent fuel is taken out of the reactor core, it still has a high decay heat and needs to be cooled for years or even decades before it can be reprocessed or buried deeply. Due to the long storage period of spent fuel, storage safety evaluation is a concern. In this regard, cooling systems are critical for the safe storage of spent fuel. Here, the research progress of cooling methods for spent fuel pools (SFPs) is reviewed, and the structural characteristics, application limitations and heat transfer performance of active and passive cooling technologies under accident conditions are discussed in detail. Moreover, future developments of SFPs are discussed, and the results of this review confirm that there is a great deal of research scope to improve the cooling performance and safety of spent fuel. This paper aims to provide a reference guide for engineers and will be highly beneficial to researchers engaged in spent fuel storage.

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“…3 Kwang-ll Ahn has carried the severe accident research of SFP to support the SFP risk and accident management. 4 Jaehyun Ham carried out the PSA for cask drop considering human error during the on-site spent nuclear fuel transportation. 5 Zhixin Xu has made some research of the risk of SFP under internal fire.…”

Section: Introductionmentioning

confidence: 99%

The holistic risk analysis of spent fuel pool considering the fuel route risk

Wang

Song³

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part O:

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The Fukushima nuclear disaster has raised the importance on the reliability and risk research of the spent fuel pool (SFP), including the risk of internal events, fire, external hazards and so on. From a safety point of view, the low decay heat of the spent fuel assemblies and large water inventory in the SFP has made the accident progress goes very slow, but a large number of fuel assemblies are stored inside the spent fuel pool and without containment above the SFP building, it still has an unignored risk to the safety of the nuclear power plant. In this paper, a standardized approach for performing a holistic and comprehensive evaluation approach of the SFP risk based on the probabilistic safety analysis (PSA) method has been developed, including the Level 1 SFP PSA and Level 2 SFP PSA and external hazard PSA. The research scope of SFP PSA covers internal events, internal flooding, internal fires, external hazards and new risk source-fuel route risk is also included. The research will provide the risk insight of Spent Fuel Pool operation, and can help to make recommendation for the prevention and mitigation of SFP accidents which will be applicable for the SFP configuration risk management.

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Severe accident analysis of plant-specific spent fuel pool to support a SFP risk and accident management

Cited by 20 publications

References 4 publications

Probabilistic safety assessment of Koeberg spent fuel pool

Probabilistic safety assessment of Koeberg spent fuel pool

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

The holistic risk analysis of spent fuel pool considering the fuel route risk

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