SBWR Model for Steady-State and Transient Analysis

Table 4

Neutron delay fraction and decay constant [13].

	𝛽𝑖	𝜆𝑖
Group 1	2.470×10^−4	0.0127s^−1
Group 2	1.355×10^−3	0.0317s^−1
Group 3	1.222×10^−3	0.1150s^−1
Group 4	2.646×10^−3	0.3110s^−1
Group 5	8.320×10^−4	1.4000s^−1
Group 6	1.690×10^−4	3.8700s^−1
𝛽	6.5×10^−3
Λ	4.0×10^−5s^−1