ML20083D164

Severe Accident Mitigation Sys, Monthly Project Status Rept for 830627-0730

ML20083D164
Person / Time
Site:	Limerick
Issue date:	08/15/1983
From:	R&D ASSOCIATES
To:	NRC
Shared Package
ML20083D155	List: ML20083D162 ML20083D164
References
CON-NRC-03-83-092, CON-NRC-3-83-92, FOIA-83-550 NUDOCS 8312270248
Download: ML20083D164 (2)

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Month 1'y Project Status Raport 15' August, 1983 Report No. RDA-MR-127500-001 7

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P'eriod Covered: June 27 through July 30, 1983 Name of-Program: Severe Accident Mitigation Systems Contract Number: NRC-03-83-092 Start Date: June 27, 1983 Completion: 27 months SECTION A: Overall Summary of Project Status Technical: In this first month of operation, active work -

has begun on Tasks 1-5. (Task 6 is done only on specific assignments). "At NRC request, the first specific plant type to be studied is the Mark II BWR, as exemplified by the Limerick plant. We have been requested to make a special rapid response on our study of this type plant by January 1, 1984. Collection of data and reports is well underway, and the Limerick containment system has been visted. Besides

• the work on Limerick, pres 6nt effort is directed at revisions and completion of the master plan for the project.

Financial: As of July 30, 1983, funds expended am'ounted to 5 31,202 (6.5% of total). Funds obligated amounted to s 58,349 (12.1% of total).

• SECTION B: Technical Status by Tasks

• IcSh is gutvey gi Cggigingent Syst 93 a; Efforts completed:

A working outline of the final topical report has been d ev el op e*d , and a substantial portion of the source documents located and' ordered. About third are already on hand. The significant failure modes of Type II containments have been identified, and mitigation requirements set out.

b. Problems or delays: None.

c. Summary to date: Data collection well underway, assessment just beginning,

d. Plans for next period: Finish assessment of Type II containments, complete source collection.

Iash 2 Sutyer gi Mitigatige Systeezza. Efforts completed:

Tabulation of mitigation concepts applicable to Mark II containments has been completed, and collection has begun of a complete list of all known suggestions for mitigation systems or components as a special assignment.

b. Problems or delays: None,

c. Summary to date: Information collection underway. . ..

d. Plans for next period: Continue c ol l ecti on and assessment of mitigation literature.

Iesk 21 Design end Eeesibilityz Ef f orts. compl ete'd:

Preliminary assessment of feasibility has been made for L_ several Type II mitigation concepts. These are to be given

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a rough costing and then subj ected to preliminary -

Value/ Impact analysi s bef ore final sel ecti on.

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b. Problems or del ays: None.

c. Summary to date: Several Type II mitigation concepts are undergoing evaluation; others will be added. l

d. Plans for next period: Complete preliminary designs and assessments, and begin final design of selected version.

IB5h di MflWEdlOBEEi 60alysis t a. Efforts completed CoI I ecti on of source documents for Value/ Impact eval uati on is under way. Previous Commission statements and action in the field has been reviewed including the PNL Value/Impect Handbook under devel opment f or RSR . Divi si on,

b. Problems or delays: None. -

c. Summary to date: Methodol ogy f or Value/In. pact analysis of mi ti gati on conceptual designs is being f ormulated, based on prior work in the field and the specific requirements of .

thi s task.

d. Plans f or next period: A working procedure f or assessment will be put into preliminary operation for examination of Type II mitigation schemes. This procedure

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will be discussed with NRC bef ore final adoption.

IB5h El biERO5 LOG Eitgtggy DEYEl920EOls a. Efforts completed: -

Collection and rev'iew is under way of suitable documents, reports, and prior action of the NRC, especially SECY 1-A and 1-B, and NUR2G 0933.

b. Probl ems and del ays: None.

c. Summary to date: Background and criteria under development.

Issh 61 Cggsgligtige god $2ECisl 915i900201s No effort assi gned by NRC to this task so far.

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