ML11221A301
| ML11221A301 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 08/01/2011 |
| From: | NRC/HR/ADHRTD/RTTB-PWR |
| To: | |
| References | |
| Download: ML11221A301 (21) | |
Text
Davis-Besse Loss of All Feedwater Chapter 16.0 B&W Cross Training Course 1
B&W Cross-Training Course R-326C
OBJECTIVES 1.
List the indications of a Loss of Heat Transfer event.
2.
Explain what operator actions and equipment failures led to the Loss of Heat Transfer event at Davis-Besse.
3.
Explain the protection provided in an event that 3.
Explain the protection provided in an event that exceeds the design bases of the unit.
4.
Describe how the Feed and Bleed method of core cooling is used to remove decay heat following a reactor trip.
5.
State why an operator/supervisor may be reluctant to use this method of decay heat removal.
Appendix - Sequence of Events
Appendix - Sequence of Events
Appendix - Sequence of Events
Appendix - Sequence of Events
- Appendix - Sequence of Events
Appendix - Sequence of Events
Appendix - Sequence of Events
Davis-Besse NSSS Fig 16-1 Fig. 16 1
Main Steam System (Fig. 16-2)
Main Feedwater System (Fig. 16-3)
Auxiliary Feedwater System (Fig. 16-4)
Emergency Core Cooling Systems (Fig. 16-5)
Steam and Feed Rupture Control System Logic (Fig. 16-6)
Reactor Coolant System and Pressure Response (Fig. 16-7)
Number One Steam Generator Parameters (Fig. 16-8)
Number Two Steam Generator Parameters (Fig. 16-9)
Trip Throttle Valve Fig 16-10 Fig. 16 10
Dominant Core Vulnerability Sequence Event Tree Fig 16 11 Fig. 16-11
Dominant Core Damage Sequence Event Tree Fig. 16-12