ML20052B712

Forwards Sixth Interim Quarterly Progress Rept, Combustion Studies at High Hydrogen Concentrations Effect of Obstacles on Combustion.

ML20052B712
Person / Time
Site:	Sequoyah
Issue date:	04/23/1982
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	Adensam E Office of Nuclear Reactor Regulation
Shared Package
ML20052B713	List: ML20052B712 ML20052B721
References
NUDOCS 8205030490
Download: ML20052B712 (4)

Text

9' i n -' ,..

TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374ol 400 Chestnut Street Tower II April 23, 1982 was\f~ /cu f

e ;. , i?G  %

Director of Nuclear Reactor Regulation ~r Attention: Ms. E. Adensam, Chief E' appa 019BF T Licensing Branch No. 4 ' 'o g y rrs CS f 3 Division of Licensing q c 2 Wi?#

U.S. Nuclear Regulatory Comission //

Washington, DC 20555 g 4

Dear Ms. Adensam:

In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 Enclosed is the sixth interim quarterly progress report on the research and I development program on hydrogen combustion and control for our Sequoyah Nuclear Plant. This report provides as Part I a status of testing and a schedule for completion of the remaining tests. Also provided, as Part II, is a report on the containment test facility phase 3 testing at Whiteshell Nuclear Research Establishment. We expect to provide a final quarterly report within 60 days from completion of the research efforts as specified in R. L. Tedesco's April. 13, 1982 letter to H. G. Parris.

If you have any questions concerning this matter, please get in touch with l J. E. Wills at FTS 858-2683 i

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills,' Manager Nuclear Licensing t s a of [ 95 UcuddLW 9kLL Notary Public g f gr op o>l My Comission Expires / ,9 -df J h i

Enclosures cc: See page 2

![

l i

82050301901 ,

An Equal Opportunity Employer 2

6:

e a .

Director of Nuclear Reactor Regulation April 23, 1982 co: U.S. Nuclear Regulatory Cocunission Regiu II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

O o .p * -

SEQUOYAH NUCLEAR PLANT HYDROGEN COMBUSTION AND CONTROL SIXTH INTERIM PROGRESS REPORT V

x , .

PART I STATUS AND COMPLETION SCHEDULE OF REMAINING TESTS The only remaining research activities to be completed are the <

combustion behavior study of a Tayco igniter and the Containment Test i Facility (CTF) Phase 4 pipe-sphere geometry tests at Whiteshell Nuclear Research Establishment (WNRE) and the durability proof-testing i of a Tayco igniter by TVA at our Singleton Laboratory. These ,

activities are underway. Our schedule for completion of testing and I submittal of reports is provided in the following table:

Test

! Complete Utility EPRI Report Date Report Submitted Submitted Acurex Completed 1/22/82

• I FM Completed 1/22/82

• HEDL Completed 1/22/82 #

1 WNRE-CTF Phases 1,2 Completed 1/22/82

• CTF Phase 3 Completed 4/15/82

• CTF Phase 4 5/7/82 5/28/82

• GM Glow Plug Completed 1/22/82

• Tayco Igniter 5/7/82 5/28/82

• wingleton-Glow Plug Completed -

12/1/81 Tayco 5/7/82 -

5/28/82 l

1 Factory Mutual Research 2 Hanford Engineering Development Laboratory Publication date of final EPRI report on these tests is not presently available.

Shakedown tests preparatory to the CTF Phase 4 tests have just been completed and took longer than anticipated due to new equipment (e.g.,

unequal gas concentration diaphragm) being installed and personnel l

being unavoidably shif ted to higher priority work associated with a WNRE research reactor outage. Phase 4 testing will begin the week of April 12. Minor modifications have recently been made by Tayco to the prototype igniter being developed for the Permanent Hydrogen Mitigation System (PHMS). - The delay in unavailability of the final igniter model has prevented the WNRE and Singleton Tayco tests from being completed as originally scheduled. However, both facilities are currently cor. ducting the testing.

1 r

$ w v,t - _ - , - . -