基于最小DNBR点法和BO点法的棒束CHF预测研究
doi: 10.13832/j.jnpe.2018.05.0172
Research of Bundle CHF Prediction Based on Minimum DNBR Point and BO Point Methods
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摘要: 分别采用最小偏离泡核沸腾比（DNBR）点法和烧毁（BO）点法开发了与子通道分析程序ATHAS匹配的临界热流密度（CHF）关系式—ACC（ATHAS CHF CORRELATION）关系式，对比分析了这2种方法的数据分布和预测率，并分别利用Owen准则确定了其DNBR限值，结果表明：相比于最小DNBR点法，BO点法基于真实的CHF发生位置的数据，具有相对的保守性和较高的预测率。Abstract: In this study, both of the minimum DNBR point and the BO point methods are applied to develop a new CHF correlation named the ACC correlation coupled with sub-channel code ATHAS. The statistics and predication rate are analyzed. The Owen criterion is used to determine the DNBR limit. The data analysis and assessment results indicate that compared with the minimum DNBR point method, the BO point method predicts the risk of DNB more reasonable and conservative with better predication rate.
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Key words:
- Minimum DNBR point method /
- BO point method /
- Bundle CHF prediction /
- Sub-channel code /
- ATHAS
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