LAPUR benchmark against in-phase and out-of-phase stability tests

Technical Report · Mon Oct 01 04:00:00 EDT 1990

OSTI ID:6586766

March-Leuba, J ^[1]

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1. Oak Ridge National Lab., TN (USA)

This paper documents a benchmark of the LAPUR code vs experimental stability data collected during startup testing of the Oskarshamn-3 reactor. The data consist of decay ratios and natural frequencies of oscillation measured under several reactor operating conditions. Satisfactory agreement was found between the measured decay and those calculated by LAPUR for both the in-phase and out-of-phase instability modes. The largest error (0.11) in the calculated decay ratio corresponded to test point 3, which corresponds to a very stable condition for which experimental decay ratio measurements are difficult. 4 refs., 8 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Technology; Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: NRC
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6586766
• Report Number(s): NUREG/CR-5605; ORNL/TM--11621; ON: TI91001719
• Country of Publication: United States
• Language: English

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