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Abstract

This document describes the analysis of aerosol particle transport in the pipes of a water reactor (pressurized or boiling water process) further to a severe accident.

The first chapter is a summary of the main physicochemical processes at the origin of particle deposition during aerosol transport.

A second chapter is dedicated to the mechanical, physical and chemical interactions to which the aerosol particles can be submitted during transport: such interactions can modify the deposited aerosol masses appreciably. During transport, the aerosol particles are generally submitted to the simultaneous action of several physicochemical deposition processes. After highlighting, on a specific example, the connections between the various deposition processes, the third chapter gives a reminder of a few computer codes currently used to assess the deposits of aerosol within a pipe, in the presence of the main physicochemical deposition processes. A validation for these codes illustrated by the analysis of the LACE programme (LWR Aerosol Containment Experiments) experimental data is then given.

This comparative analysis illustrates certain weak points in the existing codes. Therefore, as a conclusion, various experimental programmes are suggested in order to improve the current codes used for aerosol particle transport within pipes and/or containments. ents.

Additional information

Authors: ZOULIALIAN A, CEA Cadarache, Institut de Protection et de Sûreté Nucléaire, Département de Recherches en Sécurité (FR);ALBIOL T, CEA Cadarache, Institut de Protection et de Sûreté Nucléaire, Département de Recherches en Sécurité (FR)
Bibliographic Reference: EUR 16508 EN (1995) 91pp., FS
Availability: Available from the European Commission, Mr G Cottone, DG XII-F-5, 200 rue de la Loi, B-1049 Bruxelles (BE)
ISBN: ISBN 92-827-4898-7
Record Number: 199512010 / Last updated on: 1995-12-11
Category: PUBLICATION
Original language: en
Available languages: en