ML19259D222
| ML19259D222 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 09/10/1979 |
| From: | Dearin J ENERGY ENGINEERING GROUP |
| To: | Tiller R ENERGY, DEPT. OF |
| Shared Package | |
| ML19259D208 | List: |
| References | |
| NUDOCS 7910170393 | |
| Download: ML19259D222 (1) | |
Text
.
. k bbEb Idaho, Inc.
P. O. Box 1625 Idaho Falls. Idaho 83401 September 10, 1979 f1r. R. E. Tiller, Director Reactor Operations and Programs Division Idaho Operations Office - DOE Idaho Falls, ID 83401 TROJAN POWER STATION STEAM GENERATOR WATER HAMMER TECHNICAL EVALUATION (A6257) - JAD-182-79
Dear Mr. Tiller:
The attachment ccmpletes the assessment of the effectiveness of the existing means to reduce the potential for steam generator water hammer at the Trojan Power Station.
The assessment has shown that under conditions which are most conducive to water hammer in the feedwater system (specifically, uncovered and draining feedrings and feedwater piping subjected to admission of cold auxiliary feedwater), the means to reduce the potential for water hammer at this facility are adequate to maintain sufficiently full feedrings and feedwater piping until feedring recovery occurs. Therefore, since keeping the feedrings and feedwater piping full of water is the criterion for this evaluation, we find that the means to reduce the potential for steam generator water hammer at this facility are adequate.
This transmittal cnnstitutes partial fulfillment (one of the four plants to be reviewed) of Node LA3 of the A6257 PERT Chart dated Ju y 11, 1979.
Very truly yours, m.
J. A.
Dearien,
Manager Code Assessment and Applications Program DDC:tn
Attachment:
As stated cc:
S. D. MacKay, NRC-DOR (Prof. Mgr.) - 10 R. W. Kiehn, EG&G Idaho, w/o Attach.
]'
7910170