ML17326A970
| ML17326A970 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 09/09/1985 |
| From: | Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17326A971 | List: |
| References | |
| AEP:NRC:0500S, AEP:NRC:500S, NUDOCS 8509120149 | |
| Download: ML17326A970 (6) | |
Text
DOCKET 05000315 05000316 I
REGULATOP'INFORMATION DISTRIBUTION STEM (RIDS)
ACCESSION @BR: 8509120109 DOC ~ DATE: 85/09/09 NOTARIZED:
NO fACIL:50"315 Donald C.
Cook Nuclear Power Pl antP Unit 1P Indiana 8
50-316 Donald C.
Cook Nuclear Power PlantP Unit 2P Indiana L
AUTH'AtlE AUTliOR AF FILIATION ALEXICH<M,P, Indiana L Michigan Electric Co, RECIP ~ NAME RECIPIENT AFFILIATION DENTONPH ~ Rs Office of Nuclear Reactor Regulations Director-j
SUBJECT:
Forwards BMI, rept'Hydrogen Combustion Modeling Assumptions for DC Cook Nuclear P)ant~" in response to SD Varga S50620 request for fog incr ting test results'andia correlations for combustion 5 flame, speed discussed, DISTRISUTION CODE.
AQOID COPIES RECE'IVES L'TR Q'NCL SIZE
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OR Submittal:
General Distr ibution NOTES; OL:10/25/74 OL: 12/23/72 05000315 05000316 RECIP IENT ID CODE/NAME NRR ORB1 BC 01 INTERNAL: ACRS 09 ELD/HDS3 NRR/DL-DIR NRR/DL/TSRG NRR/DS I/RAB RGN3 COPIES LTTR ENCL 7
7 6
6 1
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1 1
1 1
1 1
1 RECIPIENT ID CODE/NAME ADM/LFMB NRR/DE/MTEB NRR/DL/ORAB NR TB G
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04 COPIES LTTR ENCL' 1
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1 EXTERNAL: 24X LPDR NSIC 03 05 1
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1 EGBG BRUSKEgS NRC PDR-02 TOTAL NUMBER OF COPIES REQUIRED LTTR 29 ENCL 26
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INDIANA8 NICHIGAN ELECTRIC CONPANY P.O. BOX I663I COLUMBUS, OHIO 43216 September 9,
1985 AEP:NRC:0500S Donald C. Cook Nuclear Plant Unit Nos.
1 and 2
Docket Nos.
50-315 and 50-316 License Nos.
DPR-58 and DPR-74 HYDROGEN CONTROL PROGRAM (10 CFR 50.44(c))
Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Denton:
In his letter of June 20, 1985, Mr. Steven D. Varga approved with comments our schedule for the final resolution of the hydrogen control issue (10 CFR 50.44(c)).
Mr. Varga requested that:
1)
IMEC consider results of fog inerting tests in establishing values of ignition and propagation limits.
2)
IMEC contact Sandia Laboratories to obtain the revised MARCH (HECTR) correlations for completeness of combustion and flame speed.
IMEC has responded to these requests by transmitting the enclosed report (Attachment
- 1) from Battelle Columbus Laboratories.
The report provides technical background to the combustion model to be used in the program.
The report includes discussion of the results of the fog inerting tests that were used to establish the ignition and propagation limits.
IMEC has also contacted Sandia Laboratories, and has received the new test results and correlations for combustion completeness.
The new correlation for flame speed that will be used is the default model in HECTR version 1.0.
In the opinion of Battelle Columbus Laboratories, these are the best correlations available from present knowledge and test results, and will be used in the burn model for the hydrogen control program.
This information is also included in the report.
Sandia also reported that a new flame speed correlation would be derived at some future time with the completion data reduction of FITS experimental results.
There have been sufficient sensitivity studies done (Attachment
- 2) such that repeating the entire analysis with a slightly modified correlation is unnecessary.
The hydrogen burn model and parameters discussed in Attachment, 1
will form the basis of the hydrogen control analysis for D. C. Cook Nuclear Plant.
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Nr. Harold R.
De AEP:NRC:0500S This document has'been prepared following Corporate procedures which incorporate a reasonable set of controls to ensure its accuracy and completeness prior to signature by the undersigned.
Very truly yours, M.. Ale ich Vice President
+p',
cm Attachment cc:
John E. Dolan W.
G. Smith, Jr.
Bridgman R. C. Callen G. Bruchmann G. Charnoff NRC Resident Inspector Bridgman
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