Guidelines for Permanent BWR Hydrogen Water Chemistry Installations—1987 Revision

摘要

The BWR Owner's Groups initially submitted the draft "Guidelines for Permanent BWR Hydrogen Water Chemistry Installations" to the Director, NRC Office of Nuclear Reactor Regulation (NRR) on October 12, 1985. This staff's initial review indicated that the storage and use of large quantities of liquid hydrogen on a plant site raises the concern of potentially new and different accidents from those previously considered and evaluated as part of the facility licensing process.nIn a letter to G. H. Neils, Chairman, Regulatory Advisory Committee, BWR Owner's Group II for IGSCC Research, (Bernaro, February 7, 1986), the staff indicated that licensees must consider whether proposed modifications in storage and use of relatively large quantities of liquid hydrogen and/or oxygen would result in hazards involving any of the three criteria for "an unreviewed safety question" defined in 10 CFR 50.59(a)(2). In a response (Neils, June 12, 1986) the Owner's Group requested a formal NRC staff review of all hydrogen and oxygen storage options (i.e., liquid hydrogen, liquid oxygen, and gaseous hydrogen).