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Science and Technology of Nuclear Installations
Volume 2007 (2007), Article ID 95469, 6 pages
http://dx.doi.org/10.1155/2007/95469
Research Article

Meteodiffusive Characterization of Algiers' Nuclear Research Reactor

Commissariat à l'Energie Atomique, Centre de Recherche Nucléaire d’Alger, 2 Boulevard Frantz Fanon, BP 399 Alger-Gare, Alger 16000, Algeria

Received 27 January 2007; Accepted 29 March 2007

Academic Editor: Giorgio Galassi

Copyright © 2007 Mourad Messaci. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the framework of the environmental impact studies of the nuclear research reactor of Algiers, we will present the work related to the atmospheric dispersion of releases due to the installation in normal operation, which dealt with the assessment of spatial distribution of yearly average values of atmospheric dilution factor. The aim of this work is a characterization of the site in terms of diffusivity, which is basic for the radiological impact evaluation of the reactor. The meteorological statistics result from the National Office of Meteorology and concern 15 years of hourly records. According to the nature and features of these data, a Gaussian-type model with wind direction sectors was used. Values of wind speed at release height were estimated from measurement values at 10 m from ground. For the assessment of vertical dispersion coefficient, we used Briggs' formulas related to a sampling time of one hour. Areas of maximum impact were delimited and points of highest concentration within these zones were identified.