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EMD-82-75 1 (1982-05-25)

handle is hein.gao/gaobabdhy0001 and id is 1 raw text is: COMPTROLLER GENERAL OF THE UNITED STATES WASHINGTON, D.C. 20S48 Res Mie. AR 0 I tMay 25, 1982 by t-he 0o'ace Gi )cfC ePPIaI B-164105 The Honorable John D. Dingell Chairman, Subcommittee on Oversight and Investigations Committee on Energy and Commerce House of Representatives RELEASED Dear Mr. Chairman: Subject: 1111I Ill1 I I f 118511 Revising the Clinch River Breeder Reactor Steam Generator Testing Program Can Reduce Risk (GAC/EMD-82-75) Your September 2, 1981, letter asked that we review the technical outlook for several components of the Department of Energy's (DOE's) Clinch River Breeder Reactor (CRBR)--the Nation's first liquid metal fast breeder reactor demonstration plant. In February 1982, your office requested that we issue an interim re- port on DOE's program for testing CRBR's steam generators. This report responds to that request. Steam generators for liquid metal fast breeder reactors have had a history of serious technical problems. Small breeder re- actors in this country and demonstration breeder reactors in foreign countries have experienced steam generator failures. Steam generators for the CRBR have also experienced a number of problems during their development. Despite that history, DOE does not plan to conduct complete and thorough tests of the steam generator design to be used in the CRBR. Instead, DOE plans to conduct (1) a series of limited tests on a steam generator which differs significantly from those designed for use in the CRBR, (2) a vibration test on a one-third scale model steam generator, and (3) some inplant testing on a CRBR steam generator after all CRBR steam generators have been fabricated. Without conducting more thorough tests of the CRBP steam generator design before building the CFBR units, DOE is assuming that the CRBR units will operate as predicted. If DOE is correct, the CRBR will be able to proceed on its current schedule, and the cost will be lower than if more complete and thorough testing were done. If DOE is wrong, the costs and delays associated with redesigning and modifying or rebuilding the CRBR steam generators would be substantial. (305178) 1(rik

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