Descrição da metodologia do cálculo de dispersão de plumas aplicada a um complexo industrial / Plume dispersion model methodology description applied to an industrial complex

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

29/05/2008

RESUMO

The plume dispersion modeling is a tool used to estimate the pollutants distribution in the vicinities of a chimney. It has been widely used in developed countries for a long time and now is started to be used by Brazilian environmental agencies as one of the requirements to obtain the operation license. It is based on a Gaussian modeling where input data are the emissions rate, physical data from the stack, meteorological data, and topographical characteristics. As this technique recently used in Brazil, this work proposes to describe the methodology and its steps, indicating the most relevant parameters, the possible simplifications, and details necessary. The case study was done at the site of Indústrias Nucleares do Brasil (INB). The results indicated that the edifications near the emission source are the most relevant parameter, followed by the topographical characteristics. A comparison was also done between the two commercial softwares available, the ISC3, with more details, and the SCREEN with simpler features. The results indicated that the SCREEN software can be used as an initial evaluation tool, whenever all input data necessary to process ICS3 are not available

ASSUNTO(S)

quimica atmosfera modelagem dispersão plumas atmosphere modeling dispersion plume

ACESSO AO ARTIGO

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