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
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Download: ML11221A326 (20)

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Three Mile Island Chapter 18.0 B&W Cross-Training Cross Training Course R-326C 1

OBJECTIVES

1. 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.

3 Describe the decay heat removal methods 3.

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).

OBJECTIVES

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

6 List the sources of hydrogen and oxygen 6.

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

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