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Abstract

Experimental results from the LOBI-MOD2 integral system test facility are currently being used by many organisations within Europe for the assessment, verification and improvement of thermohydraulics systems codes like RELAP5, TRAC, CATHARE, DRUFAN and others. The LOBI facility, which is a 1 : 700 scale model of a Pressurized Water Reactor, provides data on a wide range of hypothetical reactor accident scenarious, including loss of coolant accidents, operator induced transients, secondary side incidents, and for plant recovery procedures. Code assessment and improvement of RELAP5/MOD1, and recently RELAP5/MOD2, is an ongoing activity within the LOBI Project in support of the experimental programme and as part of the International Code Assessment Programme (ICAP). This paper examines how LOBI data can best be used for assessing the prediction capabilities of such thermohydraulics codes from a phenomenological standpoint, and reviews some of the improvements made to the JRC-Ispra version of RELAP5/MOD1 together with some proposed improvements for RELAP5/MOD2.

Additional information

Authors: WORTH B JRCISPRA ESTAB. (ITALY), JRCISPRA ESTAB. (ITALY)
Bibliographic Reference: 1987 EUROPEAN TWO-PHASE FLOW GROUP MEETING, TRONDHEIM (NORWAY), JUNE 1-4, 1987 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 33430 ORA
Availability: Can be ordered online
Record Number: 1989126024201 / Last updated on: 1989-01-01
Category: PUBLICATION
Available languages: en
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