Title: Tritium dispersion simulation in the atmosphere from ANGRA I Nuclear Power Plant

Authors: Davidson Martins Moreira, Marco Tullio Vilhena, Jonas da Costa Carvalho

Addresses: Universidade Federal do Rio Grande do Sul – UFRGS/PROMEC, Sarmento Leite, 425, 3° andar – Porto Alegre, RS, Brazil and Universidade Federal de Pelotas – UFPel/UNIPAMPA, Rua Carlos Barbosa S/N, Bairro Getulio Vargas, Bage, RS, Brazil. ' Universidade Federal do Rio Grande do Sul – UFRGS/PROMEC, Sarmento Leite, 425, 33° andar – Porto Alegre, RS, Brazil. ' Universidade Federal de Pelotas – UFPel, Faculdade de Meteorologia, Campus Universitario, Caixa Postal 354 – Pelotas, RS, Brazil

Abstract: In this work, we check the ability of an air pollution model to simulate the concentration of radioactive material emitted from the Nuclear Power Plant of Angra dos Reis, Brazil. To achieve this goal, we solve the time-dependent two-dimensional equation by the Generalised Integral Laplace Transform Technique (GILTT) method. The wind field was reconstructed by the MM5 mesoscale model and the analysis of the results shows a good agreement between the values computed by the model against the experimental ones.

Keywords: generalised integral Laplace transform technique; GILTT; advection-diffusion equation; planetary boundary layer; Laplace transform; pollutant dispersion; air pollution modelling; mathematical modelling; radioactive material; nuclear power plants; nuclear energy; tritium dispersion; simulation; Brazil.

DOI: 10.1504/IJNEST.2007.014650

International Journal of Nuclear Energy Science and Technology, 2007 Vol.3 No.2, pp.118 - 130

Available online: 23 Jul 2007 *

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