Multiloop Integral System Test (MIST): Final report

Technical Report · Wed Aug 01 00:00:00 EDT 1990

OSTI ID:6892374

Geissler, G O ^[1]

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1. Babcock and Wilcox Co., Lynchburg, VA (USA). Nuclear Power Div. Babcock and Wilcox Co., Alliance, OH (USA). Research and Development Div.

The Multiloop Integral System Test (MIST) is part of a multiphase program started in 1983 to address small-break loss-of-coolant accidents (SBLOCAs) specific to Babcock Wilcox designed plants. MIST is sponsored by the US Nuclear Regulatory Commission, the Babcock Wilcox Owners Group, the Electric Power Research Institute, and Babcock and Wilcox. The unique features of the Babcock Wilcox design, specifically the hot leg U-bends and steam generators, prevented the use of existing integral system data or existing integral facilities to address the thermal-hydraulic SBLOCA questions. MIST and two other supporting facilities were specifically designed and constructed for this program, and an existing facility--the Once-Through Integral System (OTIS)--was also used. Data from MIST and the other facilities will be used to benchmark the adequacy of system codes, such as RELAP5 and TRAC, for predication abnormal plant transients. The MIST Program is reported in 11 volumes. The program is summarized in Volume 1; Volumes 2 through 8 describes groups of tests by test type, Volume 9 presents inter-group comparisons, Volume 10 provides comparisons between the calculations of RELAP5/MOD2 and MIST observations, and Volume 11 presents the later Phase 4 tests. This Volume 11 pertains to MIST Phase IV tests performed to investigate risk dominant transients and non-LOCA events. 12 refs., 229 figs., 36 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research; Electric Power Research Inst., Palo Alto, CA (USA); Babcock and Wilcox Owners Group, Lynchburg, VA (USA); Babcock and Wilcox Co., Lynchburg, VA (USA). Nuclear Power Div.; Babcock and Wilcox Co., Alliance, OH (USA). Research and Development Div.
• Sponsoring Organization: EPRI; USNRC
• OSTI ID: 6892374
• Report Number(s): NUREG/CR-5395-Vol.11; EPRI-NP-6480-Vol.11; BAW-2067-Vol.11; ON: TI90017699; TRN: 90-029487
• Country of Publication: United States
• Language: English

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