RSS 1.0Artigos - Energia - FEG
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Large-eddy simulation of the flow in a direct injection spark ignition engine using an open-source framework
Dias Ribeiro, Mateus
; Mendonça Bimbato, Alex ; Araújo Zanardi, Maurício ; Perrella Balestieri, José Antônio ; (International Journal of Engine Research, 2020) [Artigo]
Direct injection spark ignition engines aim at reducing specific fuel consumption and achieving the strict emission standards in state of the art internal combustion engines. This can be achieved by research comprising ... -
Is it worth generating energy with garbage? Defining a carbon tax to encourage waste-to-energy cycles
Mollica, Gustavo José Gonçalves; Balestieri, José Antonio Perrella (Applied Thermal Engineering, 2020) [Artigo]
The rising of municipal solid waste generation is a serious current problem, whose incorrect disposal leads to major impacts to human health and the environment. Waste-to-Energy systems have been some of the adopted solutions ... -
Dynamic production, storage, and use of renewable hydrogen: A technical-economic-environmental analysis in the public transport system in São Paulo state, Brazil
Moura, Carlos Henrique Silva; Silveira, José Luz ; (International Journal of Hydrogen Energy, 2020) [Artigo]
This article proposes a calculation methodology that starts from the demand calculation to supply a fleet bus with renewable hydrogen based on the electrolysis process until the energetic, economic, and environmental ... -
Pumped hydro storage plants: a review
Vilanova, Mateus Ricardo Nogueira; Flores, Alessandro Thiessen ; Balestieri, José Antônio Perrella (Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020) [Resenha]
Pumped hydro storage plants (PHSP) are considered the most mature large-scale energy storage technology. Although Brazil stands out worldwide in terms of hydroelectric power generation, the use of PHSP in the country is ... -
A PSO-BPSO technique for hybrid power generation system sizing
Llerena-Pizarro, Omar; ; Tuna, Celso Eduardo ; Silveira, Jose Luz (IEEE Latin America Transactions, 2020) [Artigo]
The Particle Swarm Optimization (PSO) algorithm has been widely used in the field of optimization mainly due to its easy implementation, robustness, fast convergence, and low computational cost. However, due to its continuous ... -
Difficulties on the determination of the flammability limits of fuel mixtures by the Law of Le Chatelier
; ; de Carvalho, João A. (Process Safety and Environmental Protection, 2020) [Artigo]
In the present article the inaccuracies related to the estimation of the upper flammability limits of fuel mixtures in air by using the Law of Le Chatelier are analyzed. A derivation of the Law of Le Chatelier was provided ... -
Assessment of the concentration and sized distribution of particulate matter smaller that 2.5μm emitted from burning of the amazon forest in Rondonia state - Brazil
Costa, M. A.M.; Carvalho, J. A. ; ; Cardoso, A. A. ; Amaral, S. S. ; ; Souza, M. L. (23rd International Congress of Chemical and Process Engineering, CHISA 2018 and 21st Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2018, 2018) [Trabalho apresentado em evento]
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Spaces of interdisciplinary in/congruity: the coming together of engineers and social scientists in planning for sustainable urban environments
; ; ; Balestieri, José Antônio Perrella; Vilanova, Mateus Ricardo Nogueira ; Dias, Rubens Alves ; Soares, Paulo Valladares (International Journal of Urban Sustainable Development, 2020) [Artigo]
In the context of a globalised interdisciplinary moment, where boundary-crossing research collaborations are valorised, this paper considers encounters between multidisciplinary researchers. Presenting empirics and reflections ... -
The use of syngas from biomedical waste plasma gasification systems for electricity production in internal combustion: Thermodynamic and economic issues
Paulino, Regina Franciélle Silva; Essiptchouk, Alexei Mikhailovich ; Silveira, José Luz (Energy, 2020) [Resenha]
Brazil has problems with the incorrect disposal of biomedical waste (BW) and studies of new technologies to eliminate this problem is becoming increasingly important. The plasma gasification technology provides reliable ... -
Biohydrogen production and bagasse gasification process in the sugarcane industry
Paulino, Regina Franciélle Silva; Silveira, José Luz (Sustainable Bioenergy: Advances and Impacts, 2019) [Capítulo de livro]
The steam reforming of ethanol and the gasification of sugarcane bagasse processes integrated with gas turbine combined cycle have been considered to produce biohydrogen and other bioelectricity forms. Biohydrogen obtained ... -
Internal Combustion Engine Fueled with Biogas: Energetic, Economic and Environmental Analyses
De Campos, Victor Arruda Ferraz; Cantagallo, Joao Paulo Tavares ; Llerena-Pizarro, Omar R. ; Silveira, Jose Luz (IEEE Latin America Transactions, 2019) [Artigo]
This article presents the use of internal combustion engines operating with biogas for electric power generation as an alternative to meet electrical demands in rural regions where the availability of this BioSource is ... -
Solar-powered Hydrogen Refueling Stations: A techno-economic analysis
Micena, Raul Pereira; Llerena-Pizarro, Omar R. ; de Souza, Teófilo Miguel ; Silveira, José Luz (International Journal of Hydrogen Energy, 2019) [Artigo]
Fuel cell vehicles are a possible alternative for allowing a replacement of fossil-fuel based transportation. Thereby, this work's methodology proposes a Hydrogen Refueling Station (HRS) design powered by a photovoltaic ... -
Technical and economic feasibility of the use of solar thermal energy in condominiums with popular dwellings
Moraes-Santos, E. C.; Souza, T. M. ; Balestieri, J. A.P. (Renewable Energy and Power Quality Journal, 2015) [Artigo]
The proposed works consists in the research on the electric power consumption in a Brazilian municipality and effective financial economy and demand the power grid with the installation of solar water heating. The field ... -
Techno-Economic Assessment of the Use of Syngas Generated from Biomass to Feed an Internal Combustion Engine
Copa, J. R.; Tuna, C. E. ; Silveira, J. L. ; ; ; ; ; (Energies, 2020) [Artigo]
The focus of this study is to provide a comparative techno-economic analysis concerning the deployment of small-scale gasification systems in dealing with various fuels from two countries, Portugal and Brazil, for electricity ... -
The chemical percolation devolatilization model applied to the devolatilization of coal in high intensity acoustic fields
(Journal Of The Brazilian Chemical Society, 2002) [Artigo]The chemical percolation devolatilization model (CPD) was extended for the prediction of drying and devolatilization of coal particles in high intensity acoustic fields found in Rijke tube reactors. The acoustic oscillations ... -
Treatment of sugarcane vinasse from cachaça production for the obtainment of Candida utilis CCT 3469 biomass
; Canettieri, Eliana Vieira; ; ; (Biochemical Engineering Journal, 2019) [Artigo]
Ethanol and “Cachaça” production processes generate considerable amounts of residues known as vinasse. The indiscriminate disposal of this waste represents a potential risk to both surface water and groundwater, soil, ... -
Comparative 2D and 3D analysis on the hydrodynamics behaviour during biomass gasification in a pilot-scale fluidized bed reactor
; ; ; ; ; ; Silveira, José Luz (Renewable Energy, 2019) [Artigo]
2D and 3D simulations were carried out to predict the whole gasification process behaviour in a pilot-scale bubbling fluidized bed reactor. Special concern for the complex hydrodynamics phenomena within the fluidized bed ... -
Evolution of carbon capture and storage by mineral carbonation: Data analysis and relevance of the theme
Galina, Natália Ribeiro; Arce, Gretta L.A.F. ; Ávila, Ivonete (Minerals Engineering, 2019) [Resenha]
Mineral carbonation has enormous potential for carbon capture and storage (CCS). CO2 is a greenhouse gas that can be converted into environmentally stable products through mineral carbonation, which has been pointed out ... -
Machine learning methods applied to drilling rate of penetration prediction and optimization - A review
Barbosa, Luís Felipe F.M.; ; Mathias, Mauro Hugo ; de Carvalho, João Andrade (Journal of Petroleum Science and Engineering, 2019) [Artigo]
Drilling wells in challenging oil/gas environments implies in large capital expenditure on wellbore's construction. In order to optimize the drilling related operation, real-time decisions making have been put in place, ... -
Characterization of the flame front inversion of Ethanol–Air deflagrations inside A closed tube
; ; ; Silva, Lucas M.; ; de Carvalho, João A. (Energy, 2019) [Artigo]
Ethanol–air deflagrations were experimentally studied inside a closed tube by varying the equivalence ratio (0.9–1.4) and the initial pressure (20–60 kPa). The flame front inversion phenomenon was observed in all tests. ...