Bias factor method using random sampling technique

Figures & data

Figure 1. Core loading pattern of equilibrium core.

Table 1. Biases and uncertainties (σ) of HFP CBC (ppm).

Burnup	No correction		Case 1		Case 2
[GWd/t]	Bias	σ	Bias	σ	Bias	σ
0.0	20.5	69.0	0.1	0.4	−0.2	0.3
0.1	19.5	68.3	−0.7	1.4	−0.5	0.6
0.5	18.9	68.4	−1.3	1.5	−0.7	0.6
1.0	18.3	68.6	−1.9	2.5	−0.8	0.7
3.0	15.9	69.7	−4.6	7.4	−1.4	1.3
5.0	13.4	70.8	−7.2	11.7	−2.2	1.9
7.0	11.4	71.6	−9.3	15.2	−3.0	2.4
9.0	9.7	72.3	−10.9	18.1	−3.6	3.0
11.0	7.9	72.8	−12.7	20.7	−4.7	3.7
13.0	6.4	73.2	−14.1	23.0	−5.6	4.7
15.0	5.0	73.5	−15.4	25.3	−6.5	5.6
15.9	4.6	73.6	−15.7	26.3	−6.7	5.9

Figure 2. Bias of HFP assembly-wise power (%) at BOC.

Figure 3. Uncertainty of HFP assembly-wise power (%) at BOC.

Table 2. Biases and uncertainties (σ) of HFP assembly-wise power distribution (%).

	(a) Root-mean-square
	No correction		Case 1		Case 2
	Bias	σ	Bias	σ	Bias	σ
BOC	0.8	1.5	0.9	1.5	0.1	0.1
MOC	0.3	0.7	0.4	0.7	0.1	0.1
EOC	0.1	0.5	0.2	0.5	0.1	0.1
	(b) Maximum of absolute value
	No correction		Case 1		Case 2
	Bias	σ	Bias	σ	Bias	σ
BOC	1.3	2.6	1.6	2.5	0.2	0.1
MOC	0.5	1.3	0.6	1.3	0.2	0.2
EOC	0.3	1.0	0.4	0.9	0.2	0.2

Figure 4. Correlation coefficients between ${\overrightarrow{R}}^{\left(1\right)}$ and ${\overrightarrow{R}}^{\left(2\right)}$.

Figure 5. Sequential order of assembly-wise power for CCP ID.

Figure 6. Bootstrap statistical errors of reduced biases and uncertainties for Case 2.