GB/T 41586-2022 in English
VALIDBasic input parameters and output results for emergency assessment of nuclear power plant
- Issued on:2022-07-11
- Implemented on:2023-02-01
- File Format:PDF
- Delivery:Via email within 5 business days
$146.00
《GB/T 41586-2022核电厂应急评价基础输入参数和输出结果》由TC58（全国核能标准化技术委员会）归口，TC58SC2（全国核能标准化技术委员会辐射防护分会）执行，主管部门为国家标准化管理委员会。
Introduction
Standard Background and Technology Evolution
The emergency assessment system constructed by this standard integrates multi-dimensional parameter data streams (81 core technical indicators) to achieve full closed-loop management from core damage status monitoring to environmental consequence modeling. Compared with the 2010 version of the framework, the source range monitor dynamic parameter classification system and three-loop modeling algorithm are newly introduced.
Analysis of core technical parameters
| Parameter type | Typical indicators | Development and evolution |
|---|---|---|
| Core damage assessment | Number of fuel assemblies: 297 Reactor exposure alarm threshold ≥700℃ | Newly added3D core reconstruction module |
| Airborne release monitoring | Inert gas alarm threshold 40kAPI | Monitoring sensitivity increased by 3 times |
Emergency output system architecture
Six core output modulesIntegrated into a multifunctional indicator model:
- Qualitative grading system for core damage
- Full-field radioactive cloud diffusion prediction model
Typical accident application - Fukushima accident benchmark analysis
When performing the FRAT-4 group core damage parameter simulation, the containment wide-range radiation monitor values measured by the SOAR277 procedure can shorten the decay chain iteration calculation time by 23%
Operation procedure improvement suggestions
- Deploy the EMA5000 enhanced monitoring networking system
- Establish a parameter priority list based on the CNSIU standard
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