Safety aspects of spent fuel management in nuclear power plants during transition to decommissioning

Liu, Ru-Feng; Chen, Chia-Kuan; Yang, Peiying

doi:10.1016/j.anucene.2020.107469

Cited by 5 publications

(3 citation statements)

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“…French nuclear power plant operators are responsible for the long-term safety management of spent fuels and radioactive wastes, the Plan for the Sustainable Management of Radioactive Materials and Waste stipulates that all license holders of nuclear power plants must calculate the cost of spent fuel management, including the final disposal of radioactive waste and related decommissioning, establishing corresponding reserves (Liu et al, 2019), EDF incorporates the corresponding non-incurred expenditure in the form of "reserve fund" in the enterprise expenditure account according to the power generation situation of the current year. EDF keeps the "reserve fund" within it as a special account, reckons it in the cost of power generation and manages it.…”

Section: Establishing a Spent Fuel Reserve Fund Systemmentioning

confidence: 99%

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Review of spent nuclear fuel management in different developed countries

SHI,

WANG,

et al. 2024

Mechanical Engineering Journal

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Spent nuclear fuel (spent fuel), which is used nuclear fuel that has been exposed to radiation usually produced by nuclear reactors in nuclear power plants, is an inevitable product from the development of nuclear energy. Almost all of the fuel content is radioactive, and long systematic process are required for the safety management, which has always been an important global issue. In order to make sure that spent nuclear fuel should be safely managed, different countries developing nuclear power have established a complete policy and legislative system, so as to ensure that the whole process of spent fuel management is systematic, standardized and effective. In developed countries such as France, Russia and Japan, closed-cycle strategy is implemented with industrial-scale reprocessing plant under construction or in operation. At present, China has become the country with the largest scale of nuclear power under construction in the world. There will be a large number of spent nuclear fuel requiring properly and safely managed. The lessons-learning of how developed countries managing spent nuclear fuel arising is important for China. The authors suggest that it is necessary to combine the top-level design to the legal practice, so that there are laws to respect during all steps of spent fuel management, and responsibilities of all parties are clear.

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Section: Establishing a Spent Fuel Reserve Fund Systemmentioning

confidence: 99%

“…Since the 1950s, Japan has begun to develop nuclear energy to ensure its security supply of energy (Guo, 1994;Lu, 2017;Liu and Zhang, 2022). Before the Fukushima nuclear accident, Japan's nuclear power generation accounted for about 1/3 of its total power.…”

Section: Japan 231 Industry Overviewmentioning

confidence: 99%

Review of spent nuclear fuel management in different developed countries

SHI,

WANG,

et al. 2024

Mechanical Engineering Journal

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“…Nuclear power plays a great role in promoting energy transition, and the safety, maintenance, and overhaul of nuclear power facilities are crucial links in the nuclear power industry (Larsen and Babineau, 2020 ; Liu et al, 2020 ; Mallants et al, 2020 ; Park and Lee, 2020 ; Zhao et al, 2020 ). In recent years, more and more robots have been developed to serve nuclear power plants (Kim et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Neural network aided flexible joint optimization with design of experiment method for nuclear power plant inspection robot

Wang

Li²,

Ma³

et al. 2023

Front. Neurorobot.

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IntroductionThe flexible joint is a crucial component for the inspection robot to flexible interaction with nuclear power facilities. This paper proposed a neural network aided flexible joint structure optimization method with the Design of Experiment (DOE) method for the nuclear power plant inspection robot.MethodsWith this method, the joint's dual-spiral flexible coupler was optimized regarding the minimum mean square error of the stiffness. The optimal flexible coupler was demonstrated and tested. The neural network method can be used for the modeling of the parameterized flexible coupler with regard to the geometrical parameters as well as the load on the base of the DOE result.ResultsWith the aid of the neural network model of the stiffness, the dual-spiral flexible coupler structure can be fully optimized to a target stiffness, 450 Nm/rad in this case, and a given error level, 0.3% in the current case, with regard to the different loads. The optimal coupler is fabricated with wire electrical discharge machining (EDM) and tested.DiscussionThe experimental results demonstrate that the load and angular displacement keep a good linear relationship in the given load range and this optimization method can be used as an effective method and tool in the joint design process.

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