Search Results - "Gustavo Martins Vieira, Luiz"

Numerical-experimental evaluation of FRESNEL lens heating dynamics by D’Arc de Fátima Palhares, Dayana, Araújo, Bruna Sene Alves, de Faria, Érica Victor, Vieira, Luiz Gustavo Martins

“…Fresnel lenses allow the concentration of sunlight that can be employed in different thermal unitary operations or endothermic chemical transformations. A…”
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Influence of geometric and operational variables on indirect evaporative cooling using cyclone as heat exchanger by Dias, Daiane Ribeiro, Oliveira Silva, Danylo de, Gustavo Martins Vieira, Luiz

“…[Display omitted] •Higher temperatures and lower relative humidity enhance thermal variation.•Longer cyclones and smaller inlet diameters increase thermal…”
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Hydrogen production by a low-cost electrolyzer developed through the combination of alkaline water electrolysis and solar energy use by de Fátima Palhares, Dayana D'Arc, Vieira, Luiz Gustavo Martins, Damasceno, João Jorge Ribeiro

“…Electrolysis is a relatively simple process for obtaining hydrogen and can be combined with use of renewable energy sources, such as solar photovoltaic energy,…”
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Solar dish concentrator for desalting water by Prado, Gustavo Otero, Vieira, Luiz Gustavo Martins, Damasceno, João Jorge Ribeiro

“…•Design, build and performance of a solar dish concentrator for desalinating water.•Distilled water production by varying the concentration of sea salt was…”
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Design of an Optimized Hydrocyclone for High Efficiency and Low Energy Consumption by Gonçalves, Suélen Mara, Kyriakidis, Yanne Novais, Ullmann, Grégori, Barrozo, Marcos Antonio de Souza, Vieira, Luiz Gustavo Martins

“…Hydrocyclones are centrifugal devices used to perform the separation of a discrete phase (solid or liquid) from a continuous one. Depending on the process…”
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Solar assisted catalytic thermochemical processes: pyrolysis and hydropyrolysis of Chlamydomonas reinhardtii microalgae by Aparecida da Silveira Rossi, Raíssa, Barbosa, Janaína Miranda, Antonio de Souza Barrozo, Marcos, Martins Vieira, Luiz Gustavo

“…Thermochemical processes using solar energy are considered promising approaches. To improve the product properties, alternative techniques have also been…”
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Effect of variables related to the separation performance of a hydrocyclone with unprecedented geometric relationships by Kyriakidis, Yanne Novais, Silva, Danylo Oliveira, Barrozo, Marcos Antonio Souza, Vieira, Luiz Gustavo Martins

“…Hydrocyclones are devices used in solid-liquid and liquid-liquid separations, in which the substances involved present significantly different densities…”
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Economic and financial consequences of process accidents in Brazil: Multiple case studies by Sapata Gonzalez, Rodolfo, Aparecida da Silveira Rossi, Raíssa, Gustavo Martins Vieira, Luiz

“…[Display omitted] •Quantitative analysis of the economic-financial impacts regarding process accidents.•Serious accidents expose Brazilian PSM shortcoming.•The…”
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Effect of solids concentration and operational variables on the performance of a geometrically optimized concentrator hydrocyclone employing a pseudoplastic fluid by Mara Gonçalves, Suélen, Guimarães Morimoto, Murilo, Antonio de Souza Barrozo, Marcos, Gustavo Martins Vieira, Luiz

“…[Display omitted] •Increasing the fluid’s viscosity up to 55.4 cP reduces the Euler number by 12%.•If the viscosity is over 55.4 cP the concentration ratio…”
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Effect of microwave-assisted processing on polyphenol oxidase and peroxidase inactivation kinetics of açai-berry (Euterpe oleracea) pulp by Costa, Henrique Coutinho de Barcelos, Siguemoto, Érica Sayuri, Cavalcante, Tiago Augusto Bulhões Bezerra, de Oliveira Silva, Danylo, Vieira, Luiz Gustavo Martins, Gut, Jorge Andrey Wilhelms

“…•Dielectric properties evaluated at 915 and 2,450 MHz up to 120 °C.•Penetration depth decreases with temperature at 915 MHz but constant at 2450 MHz.•PPO and…”
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Hydrodynamic performance of 3D printed turbulence promoters in cross-flow ultrafiltrations of Psidium myrtoides extract by Ferreira, Franz Berbert, Ullmann, Grégori, Vieira, Luiz Gustavo Martins, Cardoso, Vicelma Luiz, Reis, Miria Hespanhol Miranda

“…[Display omitted] •Bioactive compounds from araça fruit extract were concentrated by ultrafiltration.•Turbulence promoters were designed by using by the 3D…”
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Operational and design parameters evaluation to improve hydrogen production using a low-cost alkaline water electrolysis cell in direct combination with a photovoltaic cell by Aparecida da Silveira Rossi, Raíssa, D'Arc de Fátima Palhares, Dayana, Cordeiro Rodrigues da Cunha, Paula, Jorge Ribeiro Damasceno, João, Antonio de Souza Barrozo, Marcos, Gustavo Martins Vieira, Luiz

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Design of high performance thickener hydrocyclones using robust optimization by Garcia, Vitor Alves, Lobato, Fran Sérgio, Vieira, Luiz Gustavo Martins

“…In the literature, a large number of works about the hydrocyclones geometry optimization to obtain high performance separators can be found. However, in these…”
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Effect of rheology and solids concentration on hydrocyclones performance: A study involving the design variables of an optimized hydrocyclone by Gonçalves, Suélen Mara, Ullmann, Grégori, Morimoto, Murilo Guimarães, de Souza Barrozo, Marcos Antonio, Vieira, Luiz Gustavo Martins

“…Despite several advances in the field of separations in hydrocyclones, achieving high separation efficiency in these devices when operating with concentrated…”
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Study on Filtering Hydrocyclones Operating with Concentrated Non-Newtonian Suspensions by Morimoto, Murilo Guimarães, Gonçalves, Suélen Mara, Barrozo, Marcos Antonio de Souza, Vieira, Luiz Gustavo Martins

“…Hydrocyclones are devices used to separate a discrete phase (solid or liquid) from a continuous liquid phase. Although this partition process is simple and…”
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Thermal performance of a psychrometric cooling system using cyclone fluid dynamics by Dias, Daiane Ribeiro, Ullmann, Grégori, Oliveira Silva, Danylo, Vieira, Luiz Gustavo Martins

“…Indirect evaporative cooling is a technology that can be used sustainably to replace traditional cooling systems using thermodynamic compression cycles,…”
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Reliability-based design of high-performance hydrocyclones: Multi-objective optimization, fabrication using 3D-printing and experimental analysis by Garcia, Vitor Alves, Neto, Roberto Mendes Finzi, Lobato, Fran Sérgio, Vieira, Luiz Gustavo Martins

“…In the literature, several works aim to improve the performance of hydrocyclones using geometry optimization. However, these approaches do not consider the…”
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Hydrocarbon generation through pyrolysis of high-lipid-content microalgae within a dual-catalyst bed by da Silveira Rossi, Raíssa Aparecida, Vieira, Luiz Gustavo Martins, Hori, Carla Eponina, de Souza Barrozo, Marcos Antonio

“…The presence of oxygenated and nitrogenated compounds formed during the pyrolysis of microalgae poses challenges for utilizing bio-oil as a competitive…”
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Catalytic solar hydropyrolysis of the Chlamydomonas reinhardtii microalgae by Rossi, Raíssa Aparecida da Silveira, Barbosa, Janaína Miranda, Barrozo, Marcos Antonio de Souza, Vieira, Luiz Gustavo Martins

“…Hydrogen (H2) and bio-oil production from renewable sources are promising technologies in the energy sector. Particularly, the use of microalgae as a biomass…”
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Geometric optimization of filtering conical hydrocyclones for thickening purposes with low energy consumption by de Faria, Érica Victor, Salvador, Fernanda Falqueto, Ascendino, Guilherme Guimarães, Barrozo, Marcos Antonio de Souza, Vieira, Luiz Gustavo Martins

“…[Display omitted] •Filtering Conical Hydrocyclones shows lower energy consumption than conventional.•A filtering hydrocyclone was optimized for split ratio…”
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