ML20084B211
| ML20084B211 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 07/18/1972 |
| From: | Peffer H GENERAL ELECTRIC CO. |
| To: | Oleary J US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084B161 | List: |
| References | |
| NUDOCS 8304060185 | |
| Download: ML20084B211 (1) | |
Text
' O O
GENER AL @ ELECTRIC "uc""'"""
DIVislON COMPANY TURNKEY AND OVERSEAS 175 CURINER AVE., SAN JO58 CAuF. 93125.. AREA CODE 408. TEL. 297 3000, TWX HO. 930 338-0116 PROJECTS OPER AflON Mail Code 363 File: QC-Sa July 18,1972.
e;&w0m}f
=
5 6 7l t>.y n...
~
l Mr. John F. O' Leary, Director
,e Directorate of Licensing 4
na U.S. Atomic Energy Comission Washington, D. C.
20545
SUBJECT:
Changes to the Interim Report on Condenser Pump Room Modifi. cations for Quad-Cities Unit 1 - AEC Okt 50-254
Dear Mr. O' Leary:
In the Interim Report concerning the modifications to be made to the Condensate Pump Room as a result of the flooding at Quad-Cities Unit 1 certain pumps were comitted to be installed at the Quad-Cities site to provide cooling water to the diesel generators. The commitment was to provide two 2,000 gpm and two 1.000 gpm diesel driven pumps. Under these preliminary calculations it was felt that we would need to cascade one 2,000 gpm with a 1,000 gpm diesel driven pump to get the required flow.
These pieces of equipment were based upon the preliminary calculations of line losses and flow requirements necessary to supply a 900 gpm flow to the diesel 1/2 generator.
However, when detailed calculations and actual pump demonstrations were made we found that one 2,000 gpm diesel driven pump would supply the required cooling water flow for the diesel generator. In our original calculations we were requiring a lift from the canal of 30 feet and longer hose runs than were necessary. We have now demonstrated that we can move the pumps to an elevation which requires only a 12 foot lift and routing of hoses which cuts off several 100 feet distance to the diesel.
We have also found and procured the pumps from another vendor who gave us a pump with a higher head curve. We are able to maintain 2,000 gpm flow at 365 feet head curve which is more than adequate to supply the 900 gpm for diesel generator cooling. Therefore, we are modifying our equipment list to include a 2,000 gpm diesel driven pump with a standby 2,000 gpm pump to be located at the site. All other aspects of the Interim Reg.rt are being fulfilled according to the description contained therein.
jhvI Very trul your,
(V pt B304060185 720901
~
PDR ADOCK 05000254 PDR H. R. Pef er, Manager k', c,-
S Project Support l
DRESDEN & QUAD-CITIES PROJECTS o r,.
It SURE TO INCLUDE M AIL CODE ON RituRN CORRESPONDENCE NOE bk
. _ -