ML20027E835
| ML20027E835 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/11/1982 |
| From: | Kanga B GENERAL PUBLIC UTILITIES CORP. |
| To: | Barrett L Office of Nuclear Reactor Regulation |
| References | |
| 4410-82-L-0041, 4410-82-L-41, NUDOCS 8211160238 | |
| Download: ML20027E835 (1) | |
Text
GPU Nuclear Corporation ENuclear
= = s = 8o Middletown. Pennsylvania 17057 717 944-7621 TELEX 84-2386 Writer's Direct Dial Number:
Novenber 11, 1982 4410-82-L-0041 IMI Program Office e
M Attn: Mr. L. H. Barrett, Deputy Program Director b
S US Nuclear Regulatory Comission Q
c/o Three Mile Island Nuclear Station g.,,
~
Middletown, PA 17057-0191
-m_,
%g
Dear Sir:
3
'Ihree Mile Island Nuclear Station, Unit 2 (TMI-2)
Operating License No. DPR-73 G
Docket No. 50-320 Subnerged Dmineralizer Systen Liner Recmbiner and Vacuan Outgassing Systen This letter is being suhnitted based on discussions between members of the GPU and NRC staffs in order to clarify two parameters discussed in the safety evaluation for the Suhnerged Demineralizer System Liner Recmbiner and Vacuum Outgassing System suhnitted via GPU letter 4410-82-L-0022 dated October 13, 1982.
In order to ensure adequate catalyst performance during the postulated accident conditions discussed in Section 3.3.4.3.3 of the subject safety evaluation, the water content in the SDS liner nust be reduced to less than 120 pounds. This water content is based on feasibility testing performed by Rockwell Hanford Operations (RHD) under simulated accident conditions.
The other parameter of concern is the mount of catalyst to be added to each liner. Based on testing performed by RHO, 236 grams of catalyst will be added to each liner. This amount of catalyst includes the allowance for 1 percent by weight holdup of catalyst in the catalyst insertion tool and is based on the catalyst bed volune available. This volume of catalyst is significantly greater than the mininun amount needed to ensure recebination of the hydrogen and oxygen gases being generated by the decomposition of water in the SDS liners.
If you have any questions, please contact Mr. J. J. Byrne of my staff.
()N ce y,
8211160238 821111 PDR ADOCK 05000320 P
PDR B. K. Kanga BKK/JJB/jep Director, TMI-CC: Dr. B. J. Snyder, Program Director GPU Nuclear Corporation is a subsidiary of the General Pubhc Utilities Corporation