ML19210A511
| ML19210A511 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/23/1968 |
| From: | Neidig R METROPOLITAN EDISON CO. |
| To: | Morris P US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7910300549 | |
| Download: ML19210A511 (2) | |
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.y DATE OF DOCiAENT:
DATE RECEIVED NO.:
{g M(m September 23,1960 sept 26, 1968 4383
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Dr. Peter A. Morris 1
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DESCRIPTION: ( A4vge le ynclass e'ed ) M 81o1Es M REFERRED 70.
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the two th==* amargency reactor heilding cooling water pumps will be Long b26 stilized as a asses of supplying w/a cys ser Amoa emergency feeduster investery........
ENCLOSURES:
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Dr. Peter A. . orris Director, Division of Reactor Licensing
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Subject:
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Lear Dr. Morris:
In answer to Division of Reactor Licensing question 4.12, which asked that consideratica be given to delivering service water or cooling tower inventory to the hotwell as a back up to the available feedwater source, a motor driven booster pump was proposed to take suction from the nuclear cooler river water dischsrge. This was subsequently amended to discharge to the emergency feedwater pump (s) suction rather than the hotwell.
At the time of proposing this bocster pump, all plant service water systems were closed cycle and a separate pump was necessary. How that the final design incorporates two redundant emergency reactor building cooling river water pumps discharging directly to the reactor building emergency coolers, the more logical choice is to utilise these redundant pumps (and pipelines) as the means of supplying emergency feedwater inventory; the single small booster pump will be deleted.
This letter is to advise ycu of this recent design development
<hich will be incorporated into the plant as it is constructed.
Very truly yours, METROFOLITAN EDISCII CCMPANY 1487 282 F..E. Heidig Vice President s
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L.H. Roddis, J r.
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