Assessment of RELAP5/MOD3.2-NPA3.4 Against a Transient of High Nuclear Flux Variation Reactor Trip, Natural Circulation and the Start of a Main Pump in the VANDELLOS II Nuclear Power Plant (NUREG/IA-0149)

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Publication Information

Date Published: November 1998

Prepared by:
C. Llopis, CNV II
M. Martin, PMSA

Central Nuclear Vandellòs II (CNV II) Paral.lel, 51 08004 Barcelona Spain

Pablo Moreno, SA (PMSA) Av. Vinuela, n 33, 1 D Tres Cantos – 28760 Madrid Spain

Prepared as part of:
The Agreement on Research Participation and Technical Exchange
under the International Code Application and Maintenance Program (CAMP)

Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

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Abstract

This report is an assessment calculation with RELAP5/MOD3.2 – NPA3.4 against a transient that took place in Vandellòs II Nuclear Power Plant on December 2, 1991.

This work is part of the Spanish contribution to the Code Assessment and Maintenance Program (CAMP). Vandellòs II is a member of UNIDAD ELECTRICA, S.A. (UNESA).

Vandellòs II is a 2775 Mwt three loop Westinghouse PWR owned by ENDESA, SA (72%) and IBERDROLA (28%) it is on the Mediterranean coast, near Tarragona (Spain). The commercial Operation began in 1988.

The simulation has been running on a Pentium II 266MHz PC under Windows NT. This version has been tested and results are exactly the same as those obtained with a DECStation 500/200.