Investigation of Validating Over PowerΔT Protection
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摘要: 超功率ΔT保护堆芯以防止超线功率密度引起的燃料元件损坏。以M310型核电厂为例,选取满功率下蒸汽系统管道破裂事故,研究初始工况、破口尺寸、反应性反馈系数、控制棒的调节等因素对核电厂超功率ΔT保护整定值有效性的影响,形成超功率T保护整定值有效性的验证方法。
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关键词:
- 超功率ΔT保护 /
- 蒸汽系统管道破裂 /
- 偏离泡核沸腾(DNBR)
Abstract: Overpower ΔT protection channel is respectively designed to protect the core against fuel fusion(limiting linear power density).This paper studies the main steam line break event at full power to validate the overpower ΔT protection for M310 nuclear power plant.The influences of initial conditions,break spectrum,reactivity feedback coefficient and control rod regulation are investigated.A set of analysis method to validate the overpower ΔT protection is formulated based on the discussion.-
Key words:
- Overpower ΔT protection /
- Main steam line break /
- DNBR
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