Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Steady State BFBT Data

Table 8

Sensitivity coefficients for the void fraction cases.

Case (4101-)	Outlet pressure	Mass flow rate	Inlet temperature	Wall roughness	𝐾-spacer	Hydraulic diameter	Power
04	−0.159	−0.216	0.721	−0.072	−0.150	−0.205	0.461
	−0.474	−0.239	0.640	−0.052	−0.012	—	0.500
18	−0.225	−0.205	0.651	−0.071	−0.120	−0.275	0.500
	−0.415	−0.246	0.656	0.029	0.012	—	0.567
29	−0.250	−0.252	0.718	−0.060	−0.210	0.043	0.352
	−0.476	−0.236	0.698	−0.039	0.005	—	0.459
47	−0.331	−0.114	0.830	0.021	−0.167	−0.024	0.213
	−0.425	−0.185	0.828	0.010	0.014	—	0.284
64	−0.304	−0.018	0.899	0.053	−0.162	0.004	0.053
	−0.450	−0.080	0.884	−0.006	0.001	—	0.098
82	−0.343	−0.059	0.864	0.045	−0.167	0.011	0.115
	−0.502	−0.130	0.862	−0.016	0.022	—	0.180