ML11221A326

521- R326C B&W Tech Cross Training - Chapter 18 Three Mile Island

ML11221A326
Person / Time
Site:	Three Mile Island
Issue date:	08/01/2011
From:	NRC/HR/ADHRTD/RTTB-PWR
To:
References
Download: ML11221A326 (20)

Text

Three Mile Island Chapter 18.0B&WCrossTrainingCourse 1 B&W Cross-Training Course R-326C OBJECTIVES1.Explain how a loss of feedwater resulted in a reactor trip and subsequent LOCA. 2.Describe the major radiation release paths which occurred at TMI-2.

3Describethedecayheatremovalmethods 3.Describe the decay heat removal methods used at TMI-2 during the transient. 4.Explain which parameters are used and how they indicate decay heat removal by natural circulation (or loss of natural

circulation).

5.List the operational conditions which enhance natural circulation. Include which systems may be operated different from

normal conditions.

6Listthesourcesofhydrogenandoxygen OBJECTIVES 6.List the sources of hydrogen and oxygen within the primary system and

containment. 7.Determine which RCS parameters can be used as possible indications of boiling (steam formation) within the system.

Appendix -Sequence of Events 4

Appendix -Sequence of Events 5

Appendix -Sequence of Events 6

Appendix -Sequence of Events 7

Appendix -Sequence of Events 8

Appendix -Sequence of Events 9

Appendix -Sequence of Events 10 Appendix -Sequence of Events 11 Appendix -Sequence of Events 12 Appendix -Sequence of Events 13 14Three Mile Island (Fig. 18-1) 15T=0 Minutes (Fig. 18-2) 16T=8 Minutes (Fig. 18-3) 17T=1 Hour (Fig. 18-4) 18T=2 Hours (Fig. 18-5) 19T=16 Hours (Fig. 18-6) 20TMI Radiation Release Path (Fig. 18-7)