Browsing by Author "Ramos, Antonio Carlos Souza"

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    Perspectiva de acidente químico ampliado: o caso de Madre de Deus - BA
    (Universidade Católica do Salvador, 2014-10-16) Ramos, Antonio Carlos Souza; Guimarães, Junia Kacenelenbogen; http://lattes.cnpq.br/8465194661831345; Baiardi, Amilcar; http://lattes.cnpq.br/5894026951550520; Leão, Mirtânia Antunes; http://lattes.cnpq.br/9156822767910160
    This study aims to quantify, analyze and evaluate the risks and consequences of the possible occurrence an expanded chemical accident caused by transportation systems through ducts at high temperatures and / or internal pressures and storage in pressurized and not pressurized oil and derivatives tanks, constituting a serious risk to people and the environment in the vicinity of the oil industry facilities, existing on Madre de Deus city / BA. Based on the population distribution, meteorological and physical characteristics of the region, defined frequencies for the occurrences of thirty one simulated events, and established the characterization of other physical effects arising from thermal radiation and pulse pressure in shock waves and through the use of different vulnerability, it was possible to estimate the probability for the occurrence of deaths for each accidental scenario simulated. The development of simulations of thirty one events was done with the assistance a computer system. The main goal of the study was to identify the impacts from major accidents, affecting groups of people from the surrounding communities of the industrial facilities of transport and storage of petroleum fuels; for this reason, the social risk is the priority index in this evaluation study and has the risk tolerance curve F-N as it’s main indicator. Based on the results obtained for the risk of occupation of the equipment of the oil industry in the city, through social risk (intolerable) and individual risk (intolerable to the pipeline and ALARP for tanks), and as compared to the standards of CETESB, it is concluded that the site of the oil industry in the Madre de Deus city, incur a high level of risk to foreign population residents in the vicinity of transport facilities (pipeline) and storage (tanks and spheres) to the probability of occurrence of an accident chemical amplified.
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    Vulnerabilidade populacional ao risco tecnológico: a dutovia implantada no ambiente urbano da cidade de Madre de Deus/BA
    (Universidade Católica do Salvador, 2020-03-30) Ramos, Antonio Carlos Souza; Baiardi, Amilcar; http://lattes.cnpq.br/; Guimarães, Junia Kacenelenbogen; http://lattes.cnpq.br/; Ribeiro, Maria Clotilde Meirelles; http://lattes.cnpq.br/; Leão, Mirtânia Antunes; http://lattes.cnpq.br/; Gurgel, George de Oliveira; http://lattes.cnpq.br/
    The risks of dangerous products raise the prospect of an increased accident in transport through the pipeline, implanted in the urban environment of the municipality in order to affect, through fatality, the group of people living in and around the city. As a result, vulnerable areas were defined in order to determine the number of people affected by the damaging effects of thermal load and overpressure resulting from an accident on the pipeline. Due to the proximity between the pipeline and urban structures, it was necessary to assess the number of people exposed to the harmful effects of an extended accident. The evaluation was carried out through the standards of tolerability of individual risk and social risk which were determined from the iso-risk contour curves and the F-N curves, respectively. Through the risk analysis, it was possible to evaluate the degree of reliability of the pipeline facilities, thus seeking to establish the parameters to reduce and maintain the risk levels to acceptable standards. The determination of vulnerable areas was indicated through 3 reference levels 1%, 50% and 99%, percentages that correspond to the coverage curves of the vulnerable areas, which were represented graphically on the thematic maps for better spatial visualization of the curves reach. The accidental scenarios were carried out from simulations, corresponding to the initiating events with the respective accidental scenarios. For the development of the simulations, several parameters were adopted as input data for the computer system. From the simulated events at the pipeline facilities, the tolerability of the individual risk profile indicated the need to implement measures to reduce the risk and for the social risk, the tracings of the F-N curves, indicated that measures must be applied to reduce the risks in the pipeline.