Probabilistic safety assessment method for nuclear fuel highway transportation

A technology of road transportation and probabilistic safety, applied in resources, logistics, instruments, etc., can solve problems such as lack of PSA application

Pending Publication Date: 2018-04-27
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the application of PSA in road transportation of nuclear fuel is relatively lacking.

Method used

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  • Probabilistic safety assessment method for nuclear fuel highway transportation

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Embodiment

[0040] Taking the high temperature gas-cooled reactor nuclear power plant demonstration project (HTR-PM) new fuel road transportation as an example, the implementation of the method is specifically described.

[0041] Based on the characteristics of fuel elements, through accident scenario analysis during transportation, combined with the results of mechanical analysis and criticality analysis, it is determined that the two accidents of increased radiation level and criticality of the package are accidents with potential risks. Firstly, a fault tree model is established to analyze the accident frequency of these two kinds of accidents. In the analysis, all possible five accident scenarios, the consequences of the over-design basis accident and the response threshold of the container are considered, and each accident scenario is analyzed in depth; then According to the results of the accident frequency analysis, it is necessary to continue the consequence analysis.

[0042] The...

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Abstract

The invention belongs to the technical field of probabilistic safety assessment, and specifically relates to a probabilistic safety assessment method for nuclear fuel highway transportation. Accordingto the invention, potential accident determination is performed according to basic data of the evaluation, accident scenario analysis and package integrity analysis, then accident frequency calculation, source item analysis and consequence estimation are performed, finally overall radiation risk calculation is performed, and the transportation risk is assessed. The probabilistic safety assessmentmethod can make up a defect that the selection of radiation consequence accident calculation in the traditional method is purely by experience, can be applied to safety assessment for nuclear fuel highway transportation, and is quantitative and more scientific.

Description

technical field [0001] The invention belongs to the technical field of probabilistic safety evaluation, in particular to a probabilistic safety evaluation method for nuclear fuel road transportation. Background technique [0002] With the rapid development of nuclear power in China, the road transportation of nuclear fuel is increasing day by day. The risk of nuclear fuel transportation is greater than that of fixed nuclear facilities, and has long been highly valued by nuclear-armed countries. When evaluating the safety issues involved in the transportation of nuclear fuel, the traditional methods are all deterministic, based on the principle of design basis accident in similar nuclear power plants, to analyze the radiation consequences of accidents that may occur during transportation. Probabilistic safety assessment (PSA) technology has become a standard tool for safety analysis of nuclear power plants, and its application in other nuclear fuel cycle facilities is becomi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/08G06Q50/06
CPCG06Q10/0635G06Q10/0832G06Q50/06G06F30/23
Inventor 王任泽张建岗赵兵李国强庄大杰孙树堂闫峰孟东原王学新孙洪超
Owner CHINA INST FOR RADIATION PROTECTION
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