Fuel effective temperature determination method, apparatus, and electronic device

By dividing the fuel rods into multiple annular regions along the radial direction and calculating a weighted average based on weighting factors according to power, burnup, and enrichment, the problem of low accuracy in determining the effective temperature of fuel is solved, thus improving the calculation accuracy of nuclear reactors.

CN122157866APending Publication Date: 2026-06-05HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD
Filing Date
2024-12-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing methods for determining the effective temperature of fuel have low accuracy and cannot accurately reflect the temperature distribution characteristics of the fuel rods, affecting the accuracy of calculations for nuclear reactions and neutron transport equations.

Method used

The fuel rod is divided into N annular regions along the radial direction. The temperature of each region is determined based on the relative power, burn depth and enrichment of the fuel. The effective temperature of the fuel is calculated by weighting the average of the regions using a weighting factor.

Benefits of technology

It improves the accuracy of fuel effective temperature calculation, enhances the ability to reproduce temperature models of fuel rods under different operating conditions, and improves the calculation accuracy of nuclear reactors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a fuel effective temperature determination method and device and electronic equipment, which are applied to the technical field of nuclear reactor core nuclear design and safety analysis, and the method comprises the following steps: dividing a fuel rod into N annular regions along a radial direction; determining the temperature of each annular region in the N annular regions at a first moment according to the relative power, burnup depth and enrichment of fuel in the fuel rod at the first moment; determining the weight factor of each annular region in the N annular regions at the first moment according to the temperature of each annular region in the N annular regions at the first moment; and performing weighted average on the temperature of each annular region in the N annular regions based on the weight factor of each annular region in the N annular regions at the first moment, so as to obtain the fuel effective temperature of the fuel rod at the first moment. The fuel effective temperature obtained by the method is more accurate.
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