Development of Statistical Thermal Design Procedure to Evaluate Engineering Uncertainty of Super LWR
Development of Statistical Thermal Design Procedure to Evaluate Engineering Uncertainty of Super LWR
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DOI：
10.1080/18811248.2006.9711065
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发表时间：
2006-01
影响因子：
1.2
通讯作者：
J. Yang;Y. Oka;Jie Liu;Y. Ishiwatari;A. Yamaji
中科院分区：
文献类型：
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作者：
J. Yang;Y. Oka;Jie Liu;Y. Ishiwatari;A. Yamaji
核反应堆堆芯的热性能包含各种工程不确定性。这些不确定性通常来自计算、测量、仪器、制造、加工和数据处理。在核反应堆的热设计中，统计技术对于评估和联合收割机组合这些不确定性是有用的。本文提出了一种统计方法，并将其应用于超临界压力轻水堆（Super LWR）热设计中，以评估统计工程不确定性。该方法被称为超级轻水堆蒙特卡罗统计热设计程序（MCSTDP）。该方法以包层表面最高温度（MCST）为判据，采用子通道程序进行堆芯热工水力分析。严格按照超级轻水堆的95/95限制考虑工程不确定性。本文的主要目的是建立统计评价方法。利用该方法对超级轻水堆热设计中的工程不确定性进行了评估，得到了近似量化。并将计算结果与超级轻水堆修正热设计程序（RTDP）的计算结果进行了比较。
The thermal performance of a nuclear reactor core contains various engineering uncertainties. These uncertainties often arise from calculation, measurement, instrumentation, manufacture, fabrication and data processing. Statistical techniques are useful to evaluate and combine these uncertainties in the thermal design of nuclear reactors. In this paper, a statistical method is developed and employed in the thermal design of the supercritical pressure light water reactor (Super LWR) to evaluate the statistical engineering uncertainties. This method is referred as the Monte Carlo Statistical Thermal Design Procedure for Super LWR (MCSTDP). This method uses the maximum cladding surface temperature (MCST) as a crucial criterion and a sub-channel code is utilized to perform the core thermal hydraulic analysis. The engineering uncertainties are considered with strict respect to the 95/95 limit of Super LWR. The main purpose of this paper is to establish the statistical evaluation methodology. The engineering uncertain for the thermal design of Super LWR is evaluated by using this method to get an approximate quantification. The results are compared with those of the Revised Thermal Design Procedure (RTDP) of Super LWR.