ML19343A525
| ML19343A525 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 07/24/1964 |
| From: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | |
| Shared Package | |
| ML19343A522 | List: |
| References | |
| NUDOCS 8011140524 | |
| Download: ML19343A525 (2) | |
Text
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LNITED STATES AT0!!IC ENERGY COMMISSION HEARDS ANA' LYSIS BY Tile RESEARCli AND POWER REACTOR SAFETY BRANCH DIVISION OF REACTOR LICENSING IN Tile PATTER OF YANKEE ATOMIC ELECTRIC COMPANY PROPOSED CIIANGE NO. S2 i.
DOCKET NO. 50-29 Introduction Pursuant to the provisions of Section S0.S9 of the Commission's regulations,~ Yankee Atomic Electric Company in ProJ osed Change No.
- 3 S2, dated April 21,.1964, requested authorization of a change in the
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Technical Specifications attached as Appendix A to License No. DPR-3.
This Proposed Change would authorize removal of the gas stripper in the waste disposal system and provide a pipe connection between the d=E distillate accumulator vent and the stripper condenser.
Discussion A gas stripper is currently installed in the liquid waste disposal system to remove the volatile fission product gases. The gases are
.e stripped by the countercurrent flow of steam and fed to the stripper condenser, and the liquid waste is fed into the evaporator for fur". her processing.
Operating experience with the gas stripper has shown that the unit serves as a trap for ra,dioactive crud which cannot be casily removed. The accumulation of crud in the stripper is undes-F irable since it increases the general area radiation level.
Yankee has reported that.the liquid waste disposal system can be operated effectively with the gas stripper removed, thereby removing a source of undesirable radiation. Entrained gases would be liberated by the evaporator and fed to the existing evaporator condenser and distillate accumulator.
Removal of the gases from the distillate accumulator will be accomplished by installing a connecting pipe from the accumulator vent to the original stripper condenser. We believe F
~ that the modified system is an effe:tive substitute for the gas stripper system. - In view of this, it is our opinion that the Proposed Change would not result in a significant change in the safety of operation.
Conclusion We have concluded that the Proposed Change does not present significant hazards considerations not described or implicit in the ha:ards summary 801114,0$
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I 2-report, and that there is reasonable assurance that the health and safety of the public will not be endangered.
Crip.,3! sig,ef ty.
FaterS.Bcyd Roger S. Boyd, Chief Research 6 Power Reactor Safety Branch Division of Reactor Licensing Date:
JUL 2 41554