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- ItemESTUDO DO COMPÓSITO AÇO/CERAMICO AISI-316L/Sr1,8Y0,2CrReO6 PRODUZIDO ATRAVÉS DA METALURGIA DO PÓ(Universidade Federal do Espírito Santo, 2019-06-05) Salvador, Jose Firmino; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; https://orcid.org/; http://lattes.cnpq.br/; Junior, Adonias Ribeiro Franco; https://orcid.org/; http://lattes.cnpq.br/; Junior, Jose Luis Passamai; https://orcid.org/; http://lattes.cnpq.br/; Passos, Carlos Augusto Cardoso; https://orcid.org/; http://lattes.cnpq.br/2528679879816545; Vieira, Estefano Aparecido; Cavichini, Arthur Sant Anaabstract
- ItemSUPERLUBRICIDADE NO DESLIZAMENTO DE CERÂMICOS LUBRIFICADOS COM ÁGUA(Universidade Federal do Espírito Santo, 2019-11-22) Strey, Nathan Fantecelle; Scandian, Cherlio; https://orcid.org/; http://lattes.cnpq.br/8466752738430250; https://orcid.org/; http://lattes.cnpq.br/; Sinatora, Amilton; https://orcid.org/; http://lattes.cnpq.br/; Souza, Roberto Martins de; https://orcid.org/; http://lattes.cnpq.br/; Bozzi, Antonio Cesar; https://orcid.org/; http://lattes.cnpq.br/3017292130810807; Murray, Henara Lillian CostaSuperlubricity is the state of a tribosystem characterized by extremely low friction coefficients, with μ < 0.01. The superlubricity of ceramic pairs sliding in water has been reported for several similar and dissimilar tribopairs: Si3N4-Si3N4; SiC-S
- ItemDINÂMICA EM MEIOS SETORIALMENTE HOMOGÊNEOS COM O MÉTODO DOS ELEMENTOS DE CONTORNO USANDO AS TÉCNICAS DE INTERPOLAÇÃO DIRETA E DE SUPERPOSIÇÃO DE DOMÍNIOS(Universidade Federal do Espírito Santo, 2019-12-12) Barbosa, Joao Paulo; Neto, Carlos Friedrich Loeffler; https://orcid.org/; http://lattes.cnpq.br/3102733972897061; https://orcid.org/; http://lattes.cnpq.br/; Santiago, Jose Antonio Fontes; https://orcid.org/; http://lattes.cnpq.br/; Mansur, Webe Joao; https://orcid.org/; http://lattes.cnpq.br/; Telles, Jose Claudio de Faria; https://orcid.org/; http://lattes.cnpq.br/; Lara, Luciano de Oliveira Castro; https://orcid.org/0000000313292957; http://lattes.cnpq.br/1675675424615229; Bulcao, Andre; Cezario, FlavioThe Domain Superposition Technique (DST) is a new alternative to the Boundary Element Method (BEM) for solving piecewise homogeneous problems WHERE the complete domain is divided into a surrounding homogeneous domain and other complementary subdomains wit
- ItemO MÉTODO DOS ELEMENTOS DE CONTORNO COM INTERPOLAÇÃO DIRETA APLICADO À SOLUÇÃO DE PROBLEMAS ESCALARES FUNCIONAIS EM DUAS DIMENSÕES(Universidade Federal do Espírito Santo, 2019-12-13) Barcelos, Hercules de Melo; Neto, Carlos Friedrich Loeffler; https://orcid.org/; http://lattes.cnpq.br/3102733972897061; https://orcid.org/; http://lattes.cnpq.br/; Santiago, Jose Antonio Fontes; https://orcid.org/; http://lattes.cnpq.br/; Mansur, Webe Joao; https://orcid.org/; http://lattes.cnpq.br/; Telles, Jose Claudio de Faria; https://orcid.org/; http://lattes.cnpq.br/; Lara, Luciano de Oliveira Castro; https://orcid.org/0000000313292957; http://lattes.cnpq.br/1675675424615229; Campos, Lucas Silveira; Bulcao, AndreRecently, major challenges have emerged with the advances of modern engineering, and with this, the search for more elaborate model solutions becomes necessary. In this context, the numerical formulations to treat domain integrals present in these models
- ItemDEVELOPMENT, CALIBRATION AND DEPLOYMENT OF AN ELECTRICAL RESISTANCE TOMOGRAPHY SYSTEM FOR MULTIPHASE FLOW EXPERIMENTS(Universidade Federal do Espírito Santo, 2020-04-15) Moura, Bruno Furtado de; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; https://orcid.org/; http://lattes.cnpq.br/; Silva, Wellington Betencurte da; https://orcid.org/; http://lattes.cnpq.br/6900925458823632; Dutra, Julio Cesar Sampaio; https://orcid.org/; http://lattes.cnpq.br/5331990513570911; Oliveira, Luiz Affonso Henderson Guedes de; https://orcid.org/; http://lattes.cnpq.br/; Junior, Humberto Belich; http://lattes.cnpq.br/3879935393431243; Ramos, Rogerio; https://orcid.org/0000000344932435; http://lattes.cnpq.br/2975022316691139; Sepulveda, FranciscoElectrical Impedance Tomography (EIT) is a soft-field tomography technique for imaging in industrial and medical applications. The method consists of injecting a bidirectional known current through electrodes inside a domain and measuring the subsequent v
- ItemO USO DO MÉTODO DE SUPERFÍCIE DE RESPOSTA NA OTIMIZAÇÃO TERMOECONÔMICA DE SUPERESTRUTURAS MODELADAS EM SOFTWARE COMERCIAL PARA PROJETO DE SISTEMAS DE RECUPERAÇÃO DE CALOR RESIDUAL EM MOTORES DIESEL ESTACIONÁRIOS(Universidade Federal do Espírito Santo, 2020-06-29) Araujo, Leonardo Rodrigues de; Santos, Jose Joaquim Conceicao Soares; https://orcid.org/; http://lattes.cnpq.br/6666040476009642; https://orcid.org/; http://lattes.cnpq.br/; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; Rocha, Helder Roberto de Oliveira; https://orcid.org/000000016215664X; http://lattes.cnpq.br/8801325729735529; Silva, Wellington Betencurte da; https://orcid.org/; http://lattes.cnpq.br/6900925458823632; Silva, Julio Augusto Mendes da; Colaco, Marcelo JoseIn a world with finite resources of natural fuels, increased energy demand and increasing levels of environmental pollution, issues related to the thermal systems design, such as energy efficiency, cost estimation, design complexity, environmental awarene
- ItemA NOVEL PATHWAY TO RECOVER HYDROCARBONS FROM POLYETHYLENE RESIDUES THROUGH THE COMBUSTION-DRIVEN PYROLYSIS PROCESS(Universidade Federal do Espírito Santo, 2021-02-24) Duque, Joao Vitor Ferreira; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; https://orcid.org/; http://lattes.cnpq.br/; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; Pessoa, Fernando Luiz Pellegrini; https://orcid.org/; http://lattes.cnpq.br/; Rocha, Ana Maura Araujo; https://orcid.org/; http://lattes.cnpq.br/; Debenest, Gérald; Perre, Patrick Gilbert GeorgesGlobal production of plastic materials has grown drastically, but the technologies adopted by industry and the policies of combining waste streams, collection, treatment, and disposal have not followed this rapid growth rate. Several methods of thermochem
- ItemCISÃO MECÂNICA DE POLÍMEROS FLEXÍVEIS NA REDUÇÃO DE ARRASTO EM ESCOAMENTOS TURBULENTOS ATRAVÉS DE CONTRAÇÕES(Universidade Federal do Espírito Santo, 2021-06-17) Silva, Ivanor Martins da; Soares, Edson Jose; https://orcid.org/; http://lattes.cnpq.br/4485206584533650; https://orcid.org/; http://lattes.cnpq.br/; Siqueira, Renato do Nascimento; https://orcid.org/; http://lattes.cnpq.br/9791817633014124; Thompson, Roney Leon; https://orcid.org/; http://lattes.cnpq.br/; Andrade, Rafhael Milanezi de; https://orcid.org/; http://lattes.cnpq.br/9241045307171389; Pereira, Anselmo Soeiro; Cruz, Gilmar Mompean Munhoz daThis work presents an experimental study of drag reduction (DR) in turbulent flow by addition of polymers, specifically addressing polymeric degradation in fitting pipes (abrupt contractions). The evaluation of polymeric degradation in abrupt contractions
- ItemOTIMIZAÇÃO DE SUPERESTRUTURAS PARA A RECUPERAÇÃO DE CALOR RESIDUAL DE UMA TERMELÉTRICA BRASILEIRA A MOTORES ALTERNATIVOS DE COMBUSTÃO INTERNA(Universidade Federal do Espírito Santo, 2021-08-31) Morawski, Alexandre Persuhn; Santos, Jose Joaquim Conceicao Soares; https://orcid.org/; http://lattes.cnpq.br/6666040476009642; https://orcid.org/; http://lattes.cnpq.br/; Carvalho, Monica; https://orcid.org/; http://lattes.cnpq.br/; Silva, Julio Augusto Mendes da; https://orcid.org/; http://lattes.cnpq.br/; Lora, Electo Eduardo Silva; https://orcid.org/; http://lattes.cnpq.br/; Ramos, Rogerio; https://orcid.org/0000000344932435; http://lattes.cnpq.br/2975022316691139; Donatelli, Joao Luiz MarconThe Brazilian thermal power plants were originally designed to serve as standby energy security for the grid, which is mainly supported by hydroelectric plants. The internal combustion engine (ICE) power plants eliminate copious amounts of residual heat t
- ItemDiagrama abrangente e desagregação da exergia : Uma proposta de sistematização generalizada da modelagem termoeconômica(Universidade Federal do Espírito Santo, 2021-12-22) Barone, Marcelo Aiolfi; Santos, Jose Joaquim Conceicao Soares; https://orcid.org/; http://lattes.cnpq.br/6666040476009642; https://orcid.org/; http://lattes.cnpq.br/; Arrieta, Felipe Raul Ponce; https://orcid.org/; http://lattes.cnpq.br/; Ramos, Rogerio; https://orcid.org/0000000344932435; http://lattes.cnpq.br/2975022316691139; Errera, Marcelo Risso; https://orcid.org/; http://lattes.cnpq.br/; Orrego, Daniel Alexander FlorezThermoeconomics combines concepts of thermodynamics with economics to provide the system analyst information not available through conventional analysis. Regardless of the thermoeconomic analysis, the cost formation process is necessary, besides the defin
- ItemFORMAÇÃO DE POEIRA NO EMPILHAMENTO DE MATERIAIS A GRANEL(Universidade Federal do Espírito Santo, 2022-06-29) Leao, Rodrigo Xavier de Almeida; Junior, Humberto Belich; https://orcid.org/; http://lattes.cnpq.br/3879935393431243; https://orcid.org/; http://lattes.cnpq.br/; Mesquita, Andre Luiz Amarante; https://orcid.org/; http://lattes.cnpq.br/; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; Passos, Carlos Augusto Cardoso; https://orcid.org/; http://lattes.cnpq.br/2528679879816545; Machado, Luis Paulo Silveira; Amorim, Leandro Silvaabstract
- ItemMICROESTRUTURA E TEXTURA CRISTALOGRÁFICA DOS AÇOS INOXIDÁVEIS MARTENSÍTICOS AISI 410, AISI 420 e EM 1.14116(Universidade Federal do Espírito Santo, 2022-09-30) Moura, Ariane Neves de; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; https://orcid.org/; http://lattes.cnpq.br/; Fichtner, Paulo Fernando Papaleo; https://orcid.org/; http://lattes.cnpq.br/; Rossi, Jesualdo Luiz; https://orcid.org/; http://lattes.cnpq.br/; Passos, Carlos Augusto Cardoso; https://orcid.org/; http://lattes.cnpq.br/2528679879816545; Mucsi, Cristiano Stefano; Macedo, Marcelo Camargo Severo de; http://lattes.cnpq.br/5530638975120211abstract
- ItemA fase oleosa e a degaseificação do CO2 na precipitação de CaCO3: implicações. modelagem, simulação numérica, validação e desenvolvimento de protótipo experimental(Universidade Federal do Espírito Santo, 2022-11-21) Cosmo, Rafael de Paula; Soares, Edson Jose; https://orcid.org/; http://lattes.cnpq.br/4485206584533650; https://orcid.org/; http://lattes.cnpq.br/; Pereira, Fabio de Assis Ressel; https://orcid.org/; http://lattes.cnpq.br/5476118728173549; Siqueira, Renato do Nascimento; https://orcid.org/; http://lattes.cnpq.br/9791817633014124; Aldeia, Wagner; https://orcid.org/; http://lattes.cnpq.br/; Fontes, Rosane Alves; Dariva, Claudio; Junqueira, Silvio Luiz de Mello; Martins, Andre Leibsohnabstract
- ItemSíntese e Caracterização de Compósitos Metal-cerâmico: Aisi 316l/smba2cu3o7-δ e Al/ Smba2cu3o7-δ(Universidade Federal do Espírito Santo, 2023-03-02) Nunes, Lumena Gloria de Souza; Passos, Carlos Augusto Cardoso; https://orcid.org/; http://lattes.cnpq.br/2528679879816545; https://orcid.org/; http://lattes.cnpq.br/; Rossi, Jesualdo Luiz; https://orcid.org/; http://lattes.cnpq.br/; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; Mucsi, Cristiano Stefano; https://orcid.org/; http://lattes.cnpq.br/; Vieira, Estefano Aparecidoabstract
- ItemUM Modelo Constitutivo para o Comportamento Plástico em Tração Uniaxial de Metais Baseado na Definição do Expoente de Encruamento Instantâneo(Universidade Federal do Espírito Santo, 2023-04-03) Gonoring, Tiago Bristt; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; https://orcid.org/; http://lattes.cnpq.br/; Passos, Carlos Augusto Cardoso; https://orcid.org/; http://lattes.cnpq.br/2528679879816545; Ferreira, Jetson Lemos; https://orcid.org/; http://lattes.cnpq.br/; Alves, Haimon Diniz Lopes; https://orcid.org/; http://lattes.cnpq.br/; Carneiro, Marcelo Bertolete; http://lattes.cnpq.br/5985238373861974; Castro, Nicolau Apoena; Vieira, Estefano Aparecidoabstract
- ItemToward a safe and circular thermochemical process to sanitize human feces in resource-poor environments(Universidade Federal do Espírito Santo, 2023-04-28) Bittencourt, Flavio Lopes Francisco; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; https://orcid.org/0000000182624762; http://lattes.cnpq.br/; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; Errera, Marcelo Risso; https://orcid.org/; http://lattes.cnpq.br/; Magri, Maria Elisa; https://orcid.org/; http://lattes.cnpq.br/; Pan, Rumingabstract
- ItemTRIBOLOGICAL BEHAVIOR OF ZnO@GO CORE-SHELL NANOPARTICLES AS WATER-BASED LUBRICANTS ADDITIVE AND IN COMPOSITE COBALT-BASED COATINGS PREPARED VIA CATHODE PLASMA ELECTROLYSIS DEPOSITION(Universidade Federal do Espírito Santo, 2023-06-22) Romero, Manuelle Curbani; Scandian, Cherlio; https://orcid.org/; http://lattes.cnpq.br/8466752738430250; https://orcid.org/; http://lattes.cnpq.br/; Tschiptschin, Andre Paulo; https://orcid.org/; http://lattes.cnpq.br/; Mello, Valdicleide Silva e; https://orcid.org/; http://lattes.cnpq.br/; Vieira, Lucia; https://orcid.org/; http://lattes.cnpq.br/; Murray, Henara Lillian Costa; Strey, Nathan Fantecelleabstract
- ItemModelagem Termoeconômica Generalizada e Sistemática para o Tratamento de Resíduos e Internalização de Encargos Ambientais em Sistemas Térmicos(Universidade Federal do Espírito Santo, 2023-07-10) Faria, Pedro Rosseto de; Santos, Jose Joaquim Conceicao Soares; https://orcid.org/; http://lattes.cnpq.br/6666040476009642; https://orcid.org/0000000261503248; http://lattes.cnpq.br/; Junior, Neyval Costa Reis; https://orcid.org/0000000261594063; http://lattes.cnpq.br/4944106074149720; Palacio, Jose Carlos Escobar; https://orcid.org/; http://lattes.cnpq.br/; Orozco, Dimas Jose Rua; https://orcid.org/; http://lattes.cnpq.br/; Ramos, Rogerio; https://orcid.org/0000000344932435; http://lattes.cnpq.br/2975022316691139abstract
- ItemA low-cost ERT system from a new perspective: performance improvement and film thickness measurements under fluid electrical conductivity variations(Universidade Federal do Espírito Santo, 2023-08-18) Mata, Adriana Machado Malafaia da; Martins, Marcio Ferreira; https://orcid.org/000000023023222X; http://lattes.cnpq.br/7325983059020104; https://orcid.org/0000-0002-9076-456X; http://lattes.cnpq.br/2759329761747713; Guimaraes, Nubia Rosa da Silva; Demay, Miguel Burg; Moura, Bruno Furtado de; Junior, Arnaldo Gomes Leal; https://orcid.org/0000000290750619; http://lattes.cnpq.br/7246557168481527; Sepulveda, FranciscoElectrical tomography is a non-intrusive technique connecting electrodes around a system. Through voltage measurements, the conductivity in the region inside the electrodes is estimated through the Inverse Problem (IP). By utilizing advanced techniques in the calculation of PI, obtaining tomography images quickly has become a streamlined process. These features enable safety control and multiphase flow measurement with low flow interference, in multiphase flow. Eidors is consolidated software in this technique and provides real and imaginary part results. Considering only the real part (resistive effects), we can call it Electrical Resistance Tomography (ERT). Electrical tomography depends on a conductive medium and can distinguish oil and gas in water. Our line of research focused on identifying non-conductive objects in the continuous phase of water. Using a low-cost ERT acquisition system with varying conductivities, this thesis focused on data exploration and identification of variables with the most significant impact on reconstructed image quality. Most studies use tap water for testing, with conductivity up to 0.1 S/m. Oil extraction in deep waters brought the challenge of the presence of highly saline waters. Sea water can have high electrical conductivity, reaching up to 5.3 S/m, while formation water in oil extraction can have even higher values. The differential reconstruction is based on the measurement of the homogeneous tank compared with the tank with some non-conductive object. Therefore, the differential reconstruction reduces the effect of the background conductivity since the solution is the same in both measurements. However, it is possible to observe that when increasing the solution conductivity, the image reconstruction is affected. Therefore, the study of the influence of conductivity is relevant. The electrical tomography technique has the challenge of unrelated data. Because it is highly sensitive, small changes can result in unpredictable changes in the reconstructed image. Therefore, measured data may not be related to the applied tests. From the perspective of different conductivities, an analysis was proposed to assist in identifying critical variables. We identified the impact of the signal-to-noise ratio’s variance on the reconstructed image’s quality. In this way, it is possible to predict the final quality through the variance of the measurements and help in the adequate choice of techniques that propose the improvement of the images. Another challenge is that electrical tomography becomes unfeasible at high gas fractions. Alternatively, the film thickness calculation method allows using the same acquisition system. We then proposed improvements in modeling this technique with a dimensionless model to identify meaningful relationships. In this way, it was possible to validate the results using the strategy of varying the conductivity of the solution.
- ItemESTUDO ESTRUTURAL DO COMPÓSITO Fe-TiB2 OBTIDO POR SPARK PLASMA SINTERING(Universidade Federal do Espírito Santo, 2023-08-21) Miranda, Mariane Goncalves de; Orlando, Marcos Tadeu D Azeredo; https://orcid.org/0000000283876504; http://lattes.cnpq.br/3562894103432242; https://orcid.org/; http://lattes.cnpq.br/; Rossi, Jesualdo Luiz; Passos, Carlos Augusto Cardoso; http://lattes.cnpq.br/2528679879816545; Oliveira, Marcelo Falcao de; Vieira, Estefano Aparecidoabstract