Sensitivity Evaluation of AP1000 Nuclear Power Plant Best Estimation Model

Table 13

The influence of pressurizer node number on the reactor pressure drop.

Node number	Reactor inlet pressure (MPa)	Reactor outlet pressure (MPa)	Calculated reactor pressure drop (MPa)	Designed reactor pressure drop (MPa)	Fractional error
1	15.8587	15.4125	0.4462	0.43	3.77%
3	15.4805	15.0491	0.4314	0.43	0.33%
6	15.8342	15.4213	0.4129	0.43	3.98%
12	15.8819	15.4365	0.4454	0.43	3.58%
18	15.4929	15.0131	0.4798	0.43	11.58%