Publicações - engenharias
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KÜSTER, KRISTIE KAMINSKI;
GEBBRAN, DANIEL;
Alexandre Rasi Aoki;
Germano Lambert-Torres;
NAVARRO-GEVERS, DANIEL;
IMPINISI, PATRÍCIO RODOLFO;
PINTO, CLEVERSON LUIZ DA SILVA
Palavra-chave:
smart grid
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações
resumo ...
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DE ALMEIDA, JULIO CÉZAR;
Alexandre Augusto Pescador Sardá;
DA ROCHA NETO, LEONEL BUENO
Palavra-chave:
Confiabilidade;
REDES DE DISTRIBUIÇÃO DE GÁS NATURAL;
Taxa de falhas
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações;
Engenharias; Engenharia Mecânica; Fenômenos de Transporte; Dinâmica dos Gases
resumo ...
(en)
O presente artigo discute a aplicação dos conceitos da confiabilidade no processo de projeto de estações de redução e medição de pressão de gás natural, as quais são convencionalmente utilizadas em malhas ou redes de distribuição de gás natural canalizado. Estudos envolvendo conceitos de confiabilidade necessitam do histórico de falhas dos componentes e acessórios envolvidos, motivo pelo qual o referido trabalho é ancorado em parâmetros e dados operacionais da COMPAGAS – empresa responsável pela distribuição de gás natural no Estado do Paraná e que contempla, na atualidade, uma malha aproximada de 950 km de extensão. Considerando a proposição de taxas de falhas constantes, ou mais especificamente o uso da distribuição exponencial, se faz uma análise da confiabilidade estimada das referidas estações, objetivando fornecer ao leitor uma visão geral no contexto do projeto e até mesmo da manutenção desses dispositivos.
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SIGNORI-IAMIN, GIOVANA;
Alexandre Ferreira Santos;
MAZEGA, ANDRÉ;
CORAZZA, MARCOS L.;
AGUADO, ROBERTO J.;
DELGADO-AGUILAR, MARC
Palavra-chave:
nanocelulose;
Inteligência Artificial;
Modelagem
Áreas do conhecimento:
Engenharias; Tecnologia Química; Papel e Celulose;
Engenharias; Engenharia Química; Operações Industriais e Equipamentos para Engenharia Química
resumo ...
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DE CARVALHO, JÚLIO CESAR;
luis Alberto Junior Letti;
Rodrigues, Cristine;
Adenise Lorenci Woiciechowski;
Soccol, Carlos Ricardo;
DE SOUZA VANDENBERGHE, LUCIANA PORTO;
SYDNEY, EDUARDO BITTENCOURT;
Karp, Susan Grace;
MAGALHÃES, ANTONIO IRINEUDO;
MARTINEZ-BURGOS, WALTER JOSÉ;
Adriane Medeiros;
Thomaz-Soccol, Vanete;
VIEIRA, SABRINA
Palavra-chave:
Agroindustrial Residues;
bioeconomy;
biofuel;
Biorefinery
resumo ...
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SARMIENTO, HUGO;
Potgieter-Vermaak, Sanja;
BORILLO, GUILHERME C.;
GODOI, ANA FLÁVIA L.;
REIS, RODRIGO A.;
Carlos Itsuo Yamamoto;
PAULIQUEVIS, THEOTONIO;
POLEZER, GABRIELA;
Ricardo Henrique Moreton Godoi
Palavra-chave:
BTEX;
Porto de Paranaguá
Áreas do conhecimento:
Engenharias; Engenharia Química; Ambiental
resumo ...
Port-related activities have a detrimental impact on the air quality both at the point of source and for considerable distances beyond. These activities include, but are not limited to, heavy cargo traffic, onboard, and at-berth emissions. Due to differences in construction, operation, location, and policies at ports, the site-specific air pollution cocktail could result in different human health risks. Thus, monitoring and evaluating such emissions are essential to predict the risk to the community. Environmental agencies often monitor key pollutants (PM2.5, PM10, NO2, SO2), but the volatile organic carbons (VOCs) most often are not, due to its analytical challenging. This study intends to fill that gap and evaluate the VOC emissions caused by activities related to the port of Paranaguá — one of the largest bulk ports in Latin America — by characterizing BTEX concentrations at the port and its surroundings. At seven different sites, passive samplers were used to measure the dispersion of BTEX concentrations throughout the port and around the city at weekly intervals from November 2018 to January 2019. The average and uncertainty of BTEX concentrations (µg m−3) were 0.60 ± 0.43, 5.58 ± 3.80, 3.30 ± 2.41, 4.66 ± 3.67, and 2.82 ± 1.95 for benzene, toluene, ethylbenzene, m- and p-xylene, and o-xylene, respectively. Relationships between toluene and benzene and health risk analysis were used to establish the potential effects of BTEX emissions on the population of the city of Paranaguá. Ratio analysis (T/B, B/T, m,p X/Et, and m,p X/B) indicate that the BTEX levels are mainly from fresh emission sources and that photochemical ageing was at minimum. The cancer risk varied across the sampling trajectory, whereas ethylbenzene represented a moderate cancer risk development for the exposed population in some of the locations. This study provided the necessary baseline data to support policymakers on how to change the circumstances of those currently at risk, putting in place a sustainable operation.
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SARMIENTO, HUGO;
Potgieter-Vermaak, Sanja;
BORILLO, GUILHERME C.;
Ana Flavia Locateli Godoi;
REIS, RODRIGO A.;
YAMAMOTO, CARLOS I.;
PAULIQUEVIS, THEOTONIO;
POLEZER, GABRIELA;
Ricardo Henrique Moreton Godoi
Palavra-chave:
BTEX;
Health risks;
port
resumo ...
Port-related activities have a detrimental impact on the air quality both at the point of source and for considerable distances beyond. These activities include, but are not limited to, heavy cargo traffic, onboard, and at-berth emissions. Due to differences in construction, operation, location, and policies at ports, the site-specific air pollution cocktail could result in different human health risks. Thus, monitoring and evaluating such emissions are essential to predict the risk to the community. Environmental agencies often monitor key pollutants (PM2.5, PM10, NO2, SO2), but the volatile organic carbons (VOCs) most often are not, due to its analytical challenging. This study intends to fill that gap and evaluate the VOC emissions caused by activities related to the port of Paranaguá — one of the largest bulk ports in Latin America — by characterizing BTEX concentrations at the port and its surroundings. At seven different sites, passive samplers were used to measure the dispersion of BTEX concentrations throughout the port and around the city at weekly intervals from November 2018 to January 2019. The average and uncertainty of BTEX concentrations (µg m−3) were 0.60 ± 0.43, 5.58 ± 3.80, 3.30 ± 2.41, 4.66 ± 3.67, and 2.82 ± 1.95 for benzene, toluene, ethylbenzene, m- and p-xylene, and o-xylene, respectively. Relationships between toluene and benzene and health risk analysis were used to establish the potential effects of BTEX emissions on the population of the city of Paranaguá. Ratio analysis (T/B, B/T, m,p X/Et, and m,p X/B) indicate that the BTEX levels are mainly from fresh emission sources and that photochemical ageing was at minimum. The cancer risk varied across the sampling trajectory, whereas ethylbenzene represented a moderate cancer risk development for the exposed population in some of the locations. This study provided the necessary baseline data to support policymakers on how to change the circumstances of those currently at risk, putting in place a sustainable operation.
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Eduardo Márcio de Oliveira Lopes;
Eduardo Márcio de Oliveira Lopes;
José João de Espíndola;
José João de Espíndola;
José João de Espíndola;
José João de Espíndola
Palavra-chave:
Identification;
Dynamic Characterization;
Optimization;
Kriging method
resumo ...
The finite element method (FEM) is a useful numerical tool for solving engineering problems in general. FEM simulates the behavior of several structures regarding the boundary conditions applied. However, the FEM solution presents differences when compared to experimental data. A systematic approach called finite element method update (FEMU) can reduce those differences. Here, the structural or material parameters change following an optimization problem. Thus, this study aims to characterize the dynamic behaviors of structures using a methodology of FEMU. This methodology reduces the differences between the numerical and experimental dynamic behavior of structures. Also, it uses the Kriging surrogate and experimental data to identify geometric parameters and boundary conditions. We perform the simulations and the experiments in two structures: a fixed-free beam and a frame structure. The objective function quantifies the square root of the sum of the weighted quadratic differences between numerical and experimental frequency response functions. We develop numerical models and routines of the methodology in the Abaqus and MATLAB software packages. Finally, the methodology characterizes the numerical dynamic behavior of the studied structures quite accurately regarding the experimental data.
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Debora Abrantes Leal;
Isabel Sousa;
Alexandre C Bastos;
João Tedim;
Fernando Wypych;
Cláudia Eliana Bruno Marino
Palavra-chave:
proteção contra a corrosão;
revestimentos inteligentes;
sistemas lamelares;
técnicas eletroquímicas
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações;
Engenharias; Engenharia de Materiais e Metalúrgica; corrosão & proteção
resumo ...
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Bernardo de Almeida Villanueva;
CATAPAN, Anderson;
LOUSADA, SÉRGIO ANTÓNIO NEVES
Palavra-chave:
cooperativismo;
cooperativas de energia;
Desenvolvimento Regional;
energias renováveis;
Geração Distribuída;
transição energética
resumo ...
(en)
As cooperativas de energia emergem como elementos-chave na transição energética, permitindo que cidadãos se tornem produtores independentes de energia, promovendo uma matriz descentralizada e sustentável. Este artigo apresenta uma sistematização do conhecimento existente sobre as diversas dimensões do cooperativismo de energia, a fim de oferecer uma compreensão consolidada de sua aplicabilidade e potencial impacto na transição energética no contexto brasileiro.
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PEIXOTO, LUIS OTÁVIO MIRANDA;
LIMA, BARBARA ALVES DE;
ALMEIDA, CAMILA DE CARVALHO;
Cristovão Vicente Scapulatempo Fernandes;
CENTENO, JORGE ANTONIO SILVA;
Julio Cesar de Azevedo
Palavra-chave:
Contaminants of emerging concern;
environmental monitoring
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Recursos Hídricos; Planejamento Integrado dos Recursos Hídricos
resumo ...
ABSTRACT The constant monitoring of water quality is fundamental for the understanding of the...
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