Spent fuel storage pool thermal-hydraulic analysis method and device

CN116681002BActive Publication Date: 2026-07-14CHINA NUCLEAR POWER ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR POWER ENGINEERING CO LTD
Filing Date
2023-05-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies cannot accurately and precisely perform thermal-hydraulic analysis of spent fuel storage pools, resulting in insufficient safety in facility design and high computational resource consumption.

Method used

Multiple storage unit models were constructed to form a spent fuel storage model. The spent fuel pool and its cooling water inlet/outlet pipe structures were defined, and the flow field and temperature field distribution were obtained through meshing and numerical simulation.

Benefits of technology

It enables the rapid and accurate completion of thermal-hydraulic design and safety analysis of spent fuel storage facilities with less computational resources, thereby improving the economy and safety of the facilities.

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Abstract

The application provides a kind of spent fuel storage pool thermal hydraulic analysis method and device, method includes: constructing multiple storage unit models, multiple storage unit models are assembled to form spent fuel storage model, and the cooling water inlet / outlet pipe structure of spent pool and its cooling water inlet / outlet pipe structure is constructed outside spent fuel storage model, to form spent pool three-dimensional model, define solid region, fluid region and porous medium region in spent pool three-dimensional model and set corresponding boundary, meshing is carried out to each solid region, fluid region and porous medium region of spent pool three-dimensional model, obtains the physical property parameter of each phase in spent pool grid model, the boundary condition of each solid region, fluid region and porous medium region, calculation model and convergence criterion, to carry out numerical simulation, obtain the flow field and temperature field distribution of spent fuel storage pool.The application can quickly, accurately and finely complete the thermal hydraulic design and safety analysis of spent fuel storage facility on the basis of consuming less computing resources.
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