Science and Technology of Nuclear Installations / 2018 / Article / Tab 2

Research Article

RELAP5/MOD3.3 Analysis of the Loss of External Power Event with Safety Injection Actuation

Table 2

Initial conditions.

VariablePlant measuredRELAP5

Reactor power (%)100.3100
RCS average temperature (K)577.96578.15
Hot leg temperature number 1/2 (K)596.87/596.92596.79/596.79
Cold leg temperature number 1/2 (K)559.22/559.19559.51/559.32
Pressurizer pressure (MPa)15.50915.513
Steam generator pressure number 1/2 (MPa)6.327/6.3216.438/6.415
Feedwater flow number 1/2 (kg/s)550.4/549.6541.34/544.47
Steam flow number 1/2 (kg/s)551.8/549.3541.3/544.5
Feedwater temperature (K)N.A.565.55
Steam generator narrow range level (%)69.29/69.2269.3/69.3
RCS boron concentration1687 ppm1704 ppm

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