Probabilistic Dynamics for Integrated Analysis of Accident Sequences considering Uncertain Events

Table 4

Uncertain conditions and parameters.

Number	Full parameter name	Reference	Distribution	Min.	Max.
1	Number of moles of steam		Uniform	1383240	2034004
2	Temperature inside the containment	382.05	Uniform	369.75	383.55
3	Pressure inside the containment	2.28	Uniform	2	2.5
4	Factor of spray efficiency to condensate hydrogen	1	Uniform	0.5	1.5
5	Factor of hydrogen mass flow rate in the range 1:   5875; 7000 or 9401; 14220	0.5	Uniform	0	1
6	Factor of hydrogen mass flow rate in the range 2: 7001; 9400	0.5	Uniform	0	1
7	Factor of water injection (SIS) availability	0.5	Uniform	0	1
8	Factor of spray injection (CHRS) availability	0.5	Uniform	0	1
9	Coefficient of recombined hydrogen flow rate	0.003	Uniform	0.0015	0.0045
10	Coefficient of recombined hydrogen flow rate	0.0037	Uniform	0.00185	0.00555
11	Factor of peak pressure to cause a rupture	0.5	Uniform	0	1
12	Activation of spray at 2.4 MPa pressure limit	0	Bernoulli (0.5)	0	1