ML19317H487
| ML19317H487 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/04/1980 |
| From: | Hovey G METROPOLITAN EDISON CO. |
| To: | Jay Collins Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19317H488 | List: |
| References | |
| FOIA-80-301 TLL-266, NUDOCS 8006110145 | |
| Download: ML19317H487 (1) | |
Text
9 Metropolitan Edison Comoany P0st Off'ce Box 480 g'
Middletown, Pennsy!vania 17057.
717 94a 4041 Writer's Cirect Dial Numcer June 4,1980 TLL 266 TMI Program Office Attn:
J. T. Collins, Deputy Program Director U. S. Nuclear Regulatory Commission c/o Three Mile Island Nuclear Station Middletown, Pa.
17057 Dear Sirt Three Mile Island Nuclear Station, Unit II (TMI-2)
Operating License No. DPR-73 Docket No. 50-320 Analysis of MDHR System Startup and Operation Effects on RCS Boron Concentration On May 9, 1980, during a meeting with the on-site NRC staff, the question of the effect of MDHR system startup and operation on RCS boron concentration was raised. We committed, at that time, to provide a detailed analysis of the transient and steady state effects on boron concentration throughout the reactor core region that could be anticipated as a result of putting the MDHR system into operation.
The enclosed Technical Data Report (TDR-155) provides the results of the ana!.ysis that has been performed. The analysis methodology defines eignteen (18) finite elements that make up the RCS, the reactor core region and the MDHR system. Calculations were performed, using these finite elements,' that show that RCS boron concentration does not go below the minimum required value of 3000 ppm in either the ::ansient case (startup) or the steady state case.
We anticipate that the submission of this Technical Data Report is responsive to your concerns.
Sincerely, THIS DOCUMENT CONTAINS POOR QUALITY PAGES
/s/ G. K. Hovey G. K. Hovey Director. D!I-II GKH:LJL: hah ODj
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