Issues Associated with Industry-developed Thermal-hydraulic Codes

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SUBJECT: ISSUES ASSOCIATED WITH INDUSTRY-DEVELOPED THERMAL-HYDRAULIC CODES We are responding to the Staff Requirements Memorandum dated November 7, 2000 [Reference 1], in which the Commission requested the ACRS to provide a more detailed discussion on how the perceived weaknesses with industry-developed thermal-hydraulic codes may adversely affect the NRC's regulatory role and to provide more specific recommendations on how these weaknesses should be addressed. In the Background Section we explain why thermal-hydraulic codes are of high topical interest to the ACRS and the Commission. We then respond to the Commission's question about the effects of thermal-hydraulic codes on NRC's regulatory role. Finally, we list several specific recommendations which are cross-referenced to a discussion in the appendix. The bases for the recommendations are also included in the appendix along with specific items on slides cited by the Commission in its SRM [Reference 2].

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تاریخ انتشار 2000