Novel thermal hydraulic coupling calculating method for spent fuel pool and storage grid

A technology of spent fuel pool and storage grid, which is applied in the field of spent fuel storage design of nuclear power plants, can solve problems such as lack of direct coupling, and achieve the effects of ensuring safety, improving economy, and safety and accuracy.
CN104573364AActive Publication Date: 2015-04-29CHINA NUCLEAR POWER ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NUCLEAR POWER ENG CO LTD
Publication Date
2015-04-29

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Abstract

The invention relates to the technology of spent fuel storage design of a nuclear power plant, and specifically relates to a novel thermal hydraulic coupling calculating method for a spent fuel pool and a storage grid. The method is able to perform actual simulation and coupling calculation for a flowing field and a temperature field of the whole spent fuel pool and the storage grid, so as to obtain the distribution of cooing agent temperature fields of the whole spent fuel pool and the storage grid as well as the distribution of temperature of a spent fuel assembly. With the adoption of the calculation method, the safety of the spent fuel storage can be accurately evaluated, so that the economy of the spent fuel storage of the nuclear power plant can be increased, and the safety of the spent fuel storage in the operation period of the nuclear power plant can be ensured.
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Description

technical field

[0001] The present invention relates to nuclear power plant spent fuel storage design technology, in particular to a calculation method based on a new CFD (computational fluid dynamics) method coupled with a traditional thermal analysis method (single-channel model) to calculate the entire spent fuel pool The flow field, temperature field and storage grid are simulated more realistically. Background technique

[0002] At present, the PWR power plants built in China are all equipped with spent fuel storage pools. During the refueling overhaul, the core components are unloaded into the storage grids in the spent fuel storage pools. After the primary circuit is overhauled, some of them are unloaded. Components and new components are reloaded into the core, and another part of the spent fuel components with high burnup will be placed in the storage grid in the spent fuel pool for long-term storage.

[0003] Cooling of spent fuel assemblies in spent fuel storage ...

Claims

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