ML19260C615
| ML19260C615 | |
| Person / Time | |
|---|---|
| Issue date: | 05/30/1979 |
| From: | Denise R Office of Nuclear Reactor Regulation |
| To: | Tong L NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| References | |
| REF-GTECI-A-08, REF-GTECI-CO, TASK-A-08, TASK-A-8, TASK-OR NUDOCS 8001080112 | |
| Download: ML19260C615 (2) | |
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MAY 3 01979 tiEMORANDUM FOR:
L. S. Tong, Assistant Director for Water Reactor Safety Research, RSR FROM:
R. P. Denise, Acting Assistant Director for Reactor Safety, DSS
SUBJECT:
REQUEST FOR RSR PROGRAM TO MONITOR MARK II CONTAINMENT RESEADCH AT JAERI This is to request that a program be established by RSR for monitoring and evaluating the JAERI full scale multivent Mark II steam tests.
Early in 1977 we discussed the need for additional test data applicable to the steam venting phase of a postulated LOCA in a Mark II containment.
As a result of this discussion, RSR conducted a survey of the existing data base and plans for related test programs in the near tem.
RSR also investigated the feasibility of conducting NRC funded full scale Mark II steam tests.
It was concluded that NRC funded tests should not be conducted in view of the high cost of the facility and equipment for such a test and the near term availability of applicable data from the tests to be conducted at GKSS and JAERI.
Action was taken recently by RSR to set up a monitoring and evaluation program for the GKSS tests. We propose that a similar program be established for the JAERI tests. The need for this program is as follows. The Mark I owners have recently completed full scale multivent steam tests using the FSTF. The Mark II owners, however, do not intend conducting full scale multivent tests.
The applicants for several Mark II intemediate plants have indicated that they will take credit for multivent load mitigation effects rather than utilize the lead plant bounding load specifications. The associated load specifications for these intermediate plants will be based on Mark II scale tests conducted in the range of 1/10 to 1/2 scale. The GKS5 tests will provide some qualitative information dealing with large scale vent interaction effects. However, the results of these GKSS tests will be of limited use for quantifying multivent interaction effects. The JAERI facility is prototypical of the Mark II plants.
These tests will produce data that would be applicable to the Mark II containments.
Contact:
C. Anderson, CSB 492-7711 1701 058 80 010 80 l l ck
a MAY 3 01979 L. S. Tong Infortnation exchange to date with regarti to these tests has been limited. We see a need for improved coninunications with JAERI regarding thes.e tests.
Therefore, we request that RSR establish a program to monitor and evaluate the JAERI tests. This would enable us to discuss the facility design, instrumentation and test matrix during early phases of the test.
In addition, it would expedite the transmittal of test results at the conclusion of the tests.
P R. P. Denise, Acting Assistant Director for Reactor Safety Division of Systems Safety cc:
W. Butler J. Kudrick C. Anderson F. Schroeder S. Hanauer 1701 059