Thermal-Hydraulic Analysis Tasks for ANAV NPPs in Support of Plant Operation and Control

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left"> Event </td><td align="left"> Recorded time (s)</td><td align="left">Calculated time (s)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">Main FW turbo-pump stop</td><td align="center">21</td><td align="center">21</td></tr><tr><td align="left">Run-back automatic signal</td><td align="center">22</td><td align="center">22</td></tr><tr><td align="left">Additional manual run-back</td><td align="center">71</td><td align="center">71</td></tr><tr><td align="left">Manual closure of FW 3</td><td align="center">150</td><td align="center">150</td></tr><tr><td align="left">Automatic closure signal of
 FW1 and 2</td><td align="center">201</td><td align="center">196</td></tr><tr><td align="left">Reactor scram due to high
 SG3 level</td><td align="center">240</td><td align="center">249</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Sequence of events for FW turbo-pump actual transient.

Science and Technology of Nuclear Installations

tab2

Table 2

Table 2: Thermal-Hydraulic Analysis Tasks for ANAV NPPs in Support of Plant Operation and Control 