Multiloop Integral System Test (MIST): MIST Facility Functional Specification

Technical Report · Mon Apr 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/5681659· OSTI ID:5681659

Habib, T F; Koksal, C G; Moskal, T E; Rush, G C; Gloudemans, J R ^[1]

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1. Babcock and Wilcox Co. (USA)

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 and 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 and 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 was specifically designed and constructed for this program, and an existing facility -- the Once Through Integral System (OTIS) -- was also used. Data from MIST and OTIS are used to benchmark the adequacy of system codes, such as RELAP5 and TRAC, for predicting abnormal plant transients. The MIST Functional Specification documents as-built design features, dimensions, instrumentation, and test approach. It also presents the scaling basis for the facility and serves to define the scope of work for the facility design and construction. 13 refs., 112 figs., 38 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research; Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); 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: USNRC; Nuclear Regulatory Commission, Washington, DC (USA)
• OSTI ID: 5681659
• Report Number(s): NUREG/CR-5670; EPRI-NP-7165; ON: TI91012495; CNN: B8909; D1734
• Country of Publication: United States
• Language: English

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