ML20235D745
| ML20235D745 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/11/1987 |
| From: | Edison G Office of Nuclear Reactor Regulation |
| To: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| References | |
| NUDOCS 8709250326 | |
| Download: ML20235D745 (4) | |
Text
.
N September 11, 1987 h(
O Docket No. 50-289 Distribution:
DocketJile-NRC & Local PDRs RWright Mr. Henry D. Hukill, Vice President ACRS (10)
Granch Files and Director - TMI-1 BBoger SVarga GPU Nuclear Corporation EJordan JPartlow' P. O. Box 480 OGC-Beth GEdison Middletown, Pennsylvania 17057 Glainas SNorris
Dear Mr. Hukill:
SUBJECT:
TMI WATER CHEMISTRY SURVFY As a result of the Surry pipe erosion / corrosion incident in December of 1986, the NRC is preparing a report that will reference existing research infonnation available and describe the actions being taken by utilities regarding erosion / corrosion in feedwater pipes in nuclear power plants.
Central to an understanding of erosion / corrosion in pipes is an accurate assessment of i
erosion / corrosion experience, piping design, feedwater and condensate chemistry and piping materials, a
To ensure that both the NRC and the nuclear industry have available a comprehensive collection of data regarding erosion / corrosion in feedwater pipes, the NRC will assemble a summary of utility information related to ongoing water' chemistry actions in pressurized water reactors. To accomplish this task we ask that you complete the enclosed questionnaire.
The information being requested is quite extensive and will require a diligent effort on your part and ours to assure accurate and timely completion. Also, we realize that parts of the information may already be available to the NRC, but not in a convenient format which is readily accessible. Therefore, we request that you assist us by returning a single complete copy of the enclosed questionnaire within 60 days of receipt of this letter. We believe the questionnaire is self explanatory; however, if questions arise or clarification is required, please contact me.
This request is covered by Office of Management and Budget (0MB) Clearance Number 3150-0011 which expires December 31, 1989. Comments on burden and duplication may be directed to the Office of Management and Budget, Room 3208, New Executive Office Building, Washington, D. C.
20503.
Sincerely, 8709250326 870911 IS/
PDR ADOCK 05000289 Gordon E. Edison, Senior Project Manager P
PDF Project Directorate I-4 Division of Reactor Projects I/II
Enclosure:
PWR Erosion-Corrosion Questionnaire cc w/ enclosure:
See next page g
LAPDI PDI-4 PDI-4 A
S GEdison:1m JStolz 9/// /87
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i.
e Mr. Henry 'D. Hukill:.
Three Mile Island Nuclear Station, GPU Nuclear Corporation Unit No. 1 CC:
.Mr. R. J. Toole.
Mr. Richard Conte O&M Director, TMI-l' Senior Resident inspector (TMI-1)
GPll Nuclear Corporation.
U.S.N.R.C.
Middletown, Pennsylvania 17057' P.O., Box 311
~
Middletown, Pennsylvania 17057.-
Ric'hard J. McGoey Manager, PWR Licensing Regional Administrator, Region i GPU Nuclear' Corporation U.S. Nuclear Regulatory Comission 100 Interpace Parkway 631 Park Avenue Parsippany, New Jersey 70754 King of Prussia, Pennsylvania-19406:
Mr. C. W.. Smyth Mr. Robert B. Borsum TMI-1 Licensing Manager Babcock & Wilcox GPU Nuclear Corporation Nuclear Power Generation Division Suite 220, 7910.Woodmont Avenue
.P. 0. Box.480-17057 Bethesda, Maryland 20814 Middletown, Pennsylvania Ernest L. Blake, Jr., Esq.
Governor's Office of State Planning Shaw, Pittman, Potts & Trowbridge and Development 2300 N Street, N.W.
ATTN: Coordinator, Pennsylvania Washington, D.C.
20037 State Clearinghouse P. O. Box 1323 Sheldon J. Wolfe, Esq., Chaiman Harrisburg, Pennsylvania. 17120 Atomic. Safety and Licensing Board U.S. Nuclear Regulatory Comission Mr. Larry Hochendoner-
. Washington,, D.C..20555 Dauphin 1 County Commissioner Dauphin County Courthouse Front and Market Streets Mr. Frederick J. Shon Atomic Safety and Licensing Board Harrisburg, Pennsylvania.17101 1
U.S. Nuclear Regulatory Comission Washington, D.C.
20555 Mr. David D. Maxwell,-Chairman Board of Supervisors Dr. Oscar H. Par'is Londonderry Township
' Atomic Safety and Licensing Board RFD#1 - Geyers Church Road U.S. Nuclear Regulatory Comission Middletown, Pennsylvania 17057 Washington 0.C.
20555 Mr. Thomas M. Gerusky, Director
-Atomic Safety & Licensing Board Panel Bureau of Radiation Protection U.S. Nuclear Regulatory Comission Pennsylvania Department of Washington, DC 20555 Environmental Resources j
i P. O. Box 2063 Atomic ~ Safety & Licensing Appeal Harrisburg, Pennsylvania 17120 f
i Board Panel (8)
U.S. Nuclear Regulatory Commission Thomas Y. Au, Esq.
Washington, D.C.
20555 Office of Chief Counsel Department of Environmental Pesources l
Docketing and Service Section 505 Executive House
)
c Office of the. cretary P. 0.. Box 2357 U.S. Nuclear Regulatory Comission Harrisburg, Pennsylvania 17170
)l Washington, D.C.
20555 Ms. Louise Bradford TMIA 1011 Green W eet Harrisburg, Pennsylvania 1710?
s.
\\
. Mr.- Henry D..Hukill Three Mile island Nuclear Station GPU Nuclear Corporation Unit 1 cc:.
TMIA 315 Peffer Street Harrisburo Pennsylvania. 17102 Bruce W. Churchill, Esq.
i Shaw, PittJnan, Potts & Trowbridge i g on D.C '50037.
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ENCLOSURE-PWR EROSION-CORROSION QUESTIONNAIRE (Check or Circle All Applicable)
NWe Utility Company:
Unit Name: _
Date:
Phone No.
FIIled by:
.in service: 19....
Water Treatment:
AVT with armonia, morpholine, hydrazine.
Condensate polishers: none, cation, powdex. mixed bed;
.....% of feedwater flow; Installed 19....; operated in: H-OH. NHt.-OH form.
Cooling water:. fresh, salt, brackish, cooling tower.
Copper alloy condenser tubing: yes, no. Copper alloy FW heater tubes:
Boric acid used since: 19...; during: operation, layup. Iow load soaks. other.......
A.
EROSION-CORROSION EXPERIENCE I.
Erosion-Corrosion identif" led in wet steam piping: yes, no.
2.
Erosion-Corroston of MSR Chevrons or mesh: yes, no.
Chevron materials stainless steel, carbon steel, other.....................
3.
Erosion-Corrosion of feedwater piping: yes, no.
Date found...................
Feedwater p! ping materials:................................................
4.
Erosion-Corrosion of
..... elbows...... Ts...... diffusers.......: reducers.
.... valves..... ortftces..... other components (speCIfy)..................
6.
Erosion'-Corrosion of J-Tubes: yes, no.
6.
Erosion-Corrosion of feedwater distribution ring: yes, no.
7.
Erosion-Corrosion of turbine:
HP, LP; Identify components:....................
8.
Eros ion-Corros ion of other cyc l e conponents ( ident i fy).......................g.
9.
Feedwater temperature range where erosion-corrosion founds from.... to..... F 10.
Inspection frequency for feedwater piping..... years. Steam lines..... years.
II.
Inspection methods used ultrasonic thickness, redlography. vlsual, other......
6.
PIPING DESIGN 1.
Maximum feedwater flow velocity............ feet /second.
]
2.
No. of feed punos operating at 100% load........ second pump On at.....% load.
1 3.
Maximum flow velocity when only I pump Is operating............... feet /second.
4.
No. of feedwater piping conponents:....... e l bows....... Ts
...... d i f f us e r s.
...... reducer s....... va l ves....... or i f l Ces.
...... other conponents (specify)...........................................
5.
Maximum flow velocity In wet steam piping............ feet /second.
j 6.
Feedwater pressures and temperatures (agtual (preferred) or design):
Full load toressure, osis/temocrature.
f):
P:
P:
P:
P P
T......
T T:
T T
e y4
- l G U
a u
C ensate Pump Cond. Polishers 8F Puno Steam Generators Low load (tvolcal.. 1 of full load):
P:
P P
P:
P T:
T:
T:
T:
T P
g4 k
g U
o 7
y nsate Pump Cond. Polishers BF Purrp Steam Generators 1
Please attach cooles of the heat balance dimorams for voor actual full load and tvolcal low load.
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