José Luis Gómez Vergel

Formação complementar

Idiomas

Áreas de atuação

Participação em eventos

Orientou

Produções bibliográficas

• ARMELLINI, V. ; Costanzo M. ; CASTRO, H. C. A. ; GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, M. . Effect of Different Gas-Solid Drag Models in a High-Flux Circulating Fluidized Bed Riser. CHEMICAL ENGINEERING TRANSACTIONS , v. 43, p. 1627-1632, 2015.

• Martínez, Edgar L. ; Jaimes, Ronald ; Gomez, Jose L. ; Filho, Rubens Maciel . CFD Simulation of Three-Dimensional Multiphase Flow in a Rotating Packed Bed. Computer Aided Chemical Engineering. 22ed.: Elsevier, 2012, v. , p. 1158-1162.

• VERGEL, J. L. G. ; ARMELLINI, V. ; PELISSARI, D. ; MARTIGNONI, W. ; OCONE, RAFFAELLA ; MORI, MILTON . MODELAGEM DAS REACÇÕES DE CRAQUEAMENTO PARA PROCESSOS FCC BASEADO NA TEORIA DE MISTURAS CONTINUAS. In: XXI Congresso Brasileiro de Engenharia Química, 2016, Fortaleza. XXI Congresso Brasileiro de Engenharia Química. São Paulo: Galoá journal, 2016.

• ARMELLINI, V. ; VERGEL, J. L. G. ; PELISSARI, D. ; MARTIGNONI, WALDIR ; MORI, MILTON . Estudo Computacional da Influência de Internos em Risers Industriais de FCC. In: XXI Congresso Brasileiro de Engenharia Química, 2016, Fortaleza. XXI Congresso Brasileiro de Engenharia Química. São Paulo: Galoá journal, 2016.

• PELISSARI, D. ; CASTRO, H. C. A. ; VERGEL, J. L. G. ; ARMELLINI, V. ; MARTIGNONI, W. ; MORI, MILTON . INVESTIGAÇÃO NUMÉRICA DOS EFEITOS DO DESIGN E DO ÂNGULO DOS BICOS INJETORES SOBRE O DESEMPENHO DO RISER DE FCC. In: XXI Congresso Brasileiro de Engenharia Química, 2016. XXI Congresso Brasileiro de Engenharia Química. São Paulo: Galoá journal, 2016.

• CIDES, A. C. ; GOMEZ, J. L. ; CEKINSKI, E. . ANÁLISE COMPARATIVA DA EFICIÊNCIA DE AGITAÇÃO EM TANQUES DE MISTURA COM DUPLO IMPELIDOR (ÂNCORA - PBT) EM REGIME LAMINAR ATRAVÉS DE CFD. In: XX Congresso Brasileiro de Engenharia Química, 2015, Florianópolis. Anais do XX Congresso Brasileiro de Engenharia Química. São Paulo: Editora Edgard Blücher. p. 11811.

• NOGUEIRA, A. ; GOMEZ, J. L ; CEKINSKI, E. . ESTUDO DE CFD SOBRE A INFLUÊNCIA DA CONFIGURAÇÃO DA CHICANA EM TANQUES DE MISTURA. In: XX Congresso Brasileiro de Engenharia Química, 2015, Florianópolis. Anais do XX Congresso Brasileiro de Engenharia Química. São Paulo: Editora Edgard Blücher. p. 11630.

• VERGEL, JOSE LUIS GOMEZ ; MARTIGNONI, WALDIR ; OCONE, RAFFAELLA ; MORI, MILTON . MODELAGEM CFD DE UM REATOR RISER-FCC USANDO O MODELO CINETICO DE LUMPING CONTINUO. In: XXXVII Congresso Brasileiro de Sistemas Particulados, 2015, São Carlos. Anais do XXXVII Congresso Brasileiro de Sistemas Particulados. São Paulo: Editora Edgard Blücher. v. 2. p. 424.

• GOMEZ, J. L. ; MARTIGNONI, W. ; OCONE, RAFFAELLA ; MORI, M. . CFD Modelling of Complex Reactive Mixtures in FCC Riser Reactor. In: 15 AIChE Annual Meeting, 2015, Salt Lake city. 2015 AIChE Annual Meeting Proceedings, 2015.

• GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, M. ; OCONE, RAFFAELLA . CFD MODELLING OF COMPLEX REACTIVE MIXTURES IN A FCC RISER REACTOR. Chemical Engineering Research & Design , 2016.

• GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, MILTON ; SPOGIS, N. ; PELISSARI, D. . Simulation CFD of a riser-FCC using the approach continuous lumping on the cracking reactions. 2016. (Apresentação de Trabalho/Congresso).

• OCONE, RAFFAELLA ; GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, M. . Complex reactions in an FCC riser reactor. 2016. (Apresentação de Trabalho/Conferência ou palestra).

• VERGEL, JOSE LUIS GOMEZ ; OCONE, RAFFAELLA ; MARTIGNONI, W. ; MORI, M. . CFD Modelling of Complex Reactive Mixtures in FCC Riser Reactor. 2015. (Apresentação de Trabalho/Congresso).

• OCONE, RAFFAELLA ; GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, M. . Complex Reactions in a FCC Rise. 2015. (Apresentação de Trabalho/Conferência ou palestra).

• GOMEZ, J. L. ; ARMELLINI, V. ; MARTIGNONI, W. ; MORI, M. . CFD INVESTIGATION ON THE INFLUENCE OF TURBULENCE MODELS FOR GAS-SOLID FLOW IN A CIRCULATING FLUIDIZED BED. 2014. (Apresentação de Trabalho/Seminário).

• OLIVEIRA, E. C. M. ; VERGEL, J. L. G. ; RIBEIRO, L. C. L. J. ; NUNHEZ, J. R. . ESTUDO DO CRITÉRIO DE POTÊNCIA/VOLUME COM RELAÇÃO À QUALIDADE DE AGITAÇÃO COM O USO DA FLUIDODINÂMICA COMPUTACIONAL (CFD). 2014. (Apresentação de Trabalho/Congresso).

• SILVA, M. O. M. ; VERGEL, J. L. G. ; RIBEIRO, L. C. L. J. ; NUNHEZ, R. . ESTUDO DO CRITÉRIO DE TORQUE/VOLUME COM RELAÇÃO À QUALIDADE DE AGITAÇÃO COM O USO DA FLUIDODINÂMICA COMPUTACIONAL (CFD). 2014. (Apresentação de Trabalho/Congresso).

• OCONE, RAFFAELLA ; GOMEZ, J. L. ; MARTIGNONI, W. ; MORI, M. . Implementation of continuum lumping kinetics into CFD codes. 2013. (Apresentação de Trabalho/Conferência ou palestra).

• GOMEZ, J. L. ; NUNHEZ, R. ; SPOGIS, N. ; KRESTA, S. ; MACHADO, M. . Investigating On the Influence of Mesh Density, Turbulence Models and Numerical Aspects of CFD Modeling in PBT Impellers Using Non-Structured Meshes. 2012. (Apresentação de Trabalho/Congresso).

Projetos de pesquisa

• 2013 - 2016

  IMPLEMENTATION OF CONTINUOUS KINETIC LUMPING MODEL FOR CFD MODELING OF RISER-FCC INDUSTRIAL, Descrição: Nowadays, the increasing of profitability in the refinery became more important every day, because adverse trading conditions on its products. Many researchers have considered the fluid catalytic cracking process (FCC) as the heart of modern refinery and, consequently is expected in petroleum industry, mathematical models more detailed for design and optimization of process. Computational Fluid Dynamic (CFD) is employed as an aid to understand the phenomenological dynamics inside of FCC riser reactor. On the other hand, the selectivity and conversion of the cracking kinetics need to be coupled with the hydrodynamics to undertake reliable simulations of the process. However, the catalytic cracking modelling of heavy oils is not an easy task, since it involves a very large number of components and reactions. In this work is presented, a novel approach which implements the continuum lumping kinetics in conjunction with CFD for simulation of a FCC industrial riser reactor and that has never been attempted before. The lumping kinetic approach, although unable to handle detailed reaction kinetics, is extremely powerful to simulate complex reaction mixtures, for its ability to treat a large number of reactive networks. The influence of the reactant-type distribution function on the yields of the cracking is discussed and its parameters obtained from experimental kinetic data. The CFD simulation results show that the technique appropriately describes the experiments when compared with literature; therefore, it can be used as a powerful method to represent the kinetics of petroleum fractions.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Jose Luis Gomez Vergel - Integrante / Milton Mori - Coordenador.

• 2012 - 2013

  Investigation on the influence of computational mesh, turbulence models and numerical aspects of CFD modelling in PBT impellers uising non-structured meshes, Descrição: The use of non-structured meshes has received recently considerable attention for discretization of the computational domain in CFD simulations (Vakili & Esfahany, 2009; Cabrales et al., 2011). The non-structured meshes (the most common are tetrahedral) allow adequate adaptation of irregular geometries and easy use of automated algorithms for mesh generation in most commercial CFD software. It has been consistently suggested in the literature that hexahedral meshes are preferred over tetrahedral. However, they can be used, provided that some care is taken to provide a good representation of the physical phenomena of the problem. Recently published works have been proving that if they are used with care, satisfactory results are obtained (Spogis & Nunhez, 2009). Most of works developed with the use of CFD simulation for mixing processes use hexahedral and to date tetrahedral do not have the same acceptance of hexahedral (Joaquim Junior et al., 2007) and part of this work is aimed at showing that they can provide good results when simulating mixing processes. Another objective of this work is to show the effect of mesh refinement in tetrahedral meshes. It is investigated the influence of the prismatic elements near wall on global parameters such as the Power and Flow numbers. An initial analysis of the sensitivity of some turbulence models (Standard k-ε model, the shear stress transport (SST) and BSL-Reynolds stress model) and the discretization scheme on the flow field produced were also carried out in this work. In addition, simulations with different mesh resolutions were made using the multiple reference frame (MFR) approach; whereas other cases a sliding mesh modeling was provided for the impeller. The discretization schemes were limited to upwind, high resolution and blend factor, since other schemes do not work well with tetrahedral. The commercial CFD software CFX 14.0 was used to simulate the results. A pitched blade turbine (PBT 45°, down-pumping), was simulated in turbulent flow.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (1) . , Integrantes: Jose Luis Gomez Vergel - Integrante / ROBERTO NUNHEZ - Coordenador / NICOLAS SPOGIS - Integrante.

• 2009 - 2010

  BASIC DESIGN OF A SYSTEM OF MONITORING THE QUALITY OF AIR CLEAN FOR THE MUNICIPALITY OF SOGAMOSO-DEPARTMENT OF BOYACA, Descrição: Air pollution generated by the industry is a topic of great interest due to its impact on the environment and human health. The municipality of Sogamoso is one of the areas of the country which concentrates one of the most significant percentages of environmental pollution for this reason it is important to develop and the deployment new tools to improve the management of the environmental authority. The objective of the present work is to Develop the basic design of an air quality forecast system (SVCA) for the municipality of Sogamoso, considering the protocols established by the Ministry of environment, housing and territorial development, looking forward to identify, inspect and control the generating activities of pollution emissions, in addition to evaluate the level of compliance with environmental regulations. The development of the project followed different stages starting with a compilation of sources and accomplished studies in the area, where the topography of the place was analyzed, epidemiological studies and the current environmental legal framework. The following stage analyzed the dispersion of pollutants in the area of study where a campaign of monitoring for identification of pollutants, analysis of meteorological data, inventory of emissions and models for transport of pollutants were required. Finally a basic design of a SVCA was established, which allowed to identify the places with higher concentration of pollutants, and the influence of production and industrial processes on the increase of pollution emission and verify compliance with established standards of sound by law for particulate matter, PM-10 as agent pollutant. It is recommended to the competent authorities of the municipality to advance projects in search of the declaration of source of contamination area in the Valley of Sogamoso place.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Jose Luis Gomez Vergel - Coordenador / MARIANNY YAJAIRA COMBARIZA - Integrante / LUZ SAYDA ZAMBRANO BARRERA - Integrante / AMÍLCAR RIZZO ALVARADO - Integrante.

• 2007 - 2008

  IMPLEMENTATION OF A STRATEGY FOR PHYSICAL CHARACTERIZATION OF TYPE FOAM MONOLITHS ACTIVATED WITH SILICA, Descrição: The influence of the physical and topology properties in the operation of the monolith type foams as chemical reactor has increased the interest at the investigation and determination of these properties. The objective of the present work is the implementation of a strategy to monolith characterization type foams crude and functionalized with silica. It would allow the description of the superficial and the geometric properties of the monolith in a completely manner. In this research, the crude and functionalized monolithic catalysts of 10 30 and 45 PPI (pores by linear inch) were characterized by conventional techniques (BET, helium porosimetry) and nonconventional (rays-X tomography, optical stereoscope, digital treatment of images). The results of the experimental methods and computational algorithms with digital treatment to the fraction of emptiness, superficial area and pores density were compared. These properties calculated by computational algorithms offer information detailed about the space distribution in 3D of them. Also, the diameter, the volume average of pores and the distribution of the catalytically active component were analyzed. Finally, the digital signature of the 2D images at the monoliths was determined like an identification mode of the morphologic characteristics applying the concept of the functional of Minkowski. As a result, the ratio of area BET as the total volume of pore with respect to the density of pore (PPI) show a linear tendency to crude monoliths (inverse relation) and also to the functionalized (independent). The fraction of emptiness is directly proportional to the plan position indicator. It was established clearly.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Graduação: (2) / Doutorado: (1) . , Integrantes: Jose Luis Gomez Vergel - Coordenador / RAMIRO MARTÍNEZ - Integrante / DENYSE ELAINE QUINTO HERRERA - Integrante.

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