Community Research and Development Information Service - CORDIS

Abstract

In the event of abnormal transient conditions in PWRs the operator may be instructed to enforce emergency recovery procedures to prevent limiting conditions which could jeopardize the integrity of the plant. The results from a series of tests simulating relevant recovery procedures in the LOBI-MOD2 test facility are presented in the object paper. They relate (1) to the efficiency of the secondary system as an additional heat sink in small break LOCAs, (2) to the recovery of the secondary system heat sink from highly degraded conditions caused by the loss of off-site and normal on-site electrical power, (3) to primary system depressurization using the pressurizer cooling system in the aftermatch of a steam line break. The reported experimental results provide a basis for the phenomenological understanding and for the development and/or assessment of analytical tools used in PWR safety analysis.

Additional information

Authors: ADDABBO C, JRC ISPRA ESTAB. (ITALY);PIPLIES L JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: 14TH USNRC WATER REACTOR SAFETY INFORMATION MEETING, GAITHERSBURG, MARYLAND (USA), OCT. 27-31, 1986 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32979 ORA
Availability: Can be ordered online
Record Number: 1989125052800 / Last updated on: 1987-11-01
Category: PUBLICATION
Available languages: en