Fuel Evaluation
Mostrando 1-12 de 111 artigos, teses e dissertações.
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1. High Conversion of Palm Olein to Ethyl Esters Using a Strong Anion Exchange Resin: Study of the Operational Parameters
Biodiesel, known as a mixture of fatty acid ethyl/methyl esters, is seen as an alternative, ecofriendly, biodegradable and renewable non-fossil fuel. The use of heterogeneous catalysts for biodiesel synthesis can solve several problems associated with the homogeneous alkaline catalyzed-transesterification. Therefore, this work reports the evaluation of the c
J. Braz. Chem. Soc.. Publicado em: 2020-07
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2. Evaluation of the Effect of the Incorporation of Blends of Fuel and Fluxing Wastes in Red Clay Ceramics
The clay samples endure the incorporation of industrial and urban wastes, which do not cause large variations in their properties if added in controlled quantities. Wastes can be classified as fuel, fluxing and property affecting wastes. The fuel wastes usually have a high amount of organic matter, that when heated cause exothermic reactions, releasing heat
Mat. Res.. Publicado em: 09/12/2019
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3. Evaluation of Biomass Properties for the Production of Solid Biofuels
ABSTRACT The efficient use of biomass as fuel requires prior knowledge of the composition and properties of the material in order to be able to develop technologies for its efficient combustion while ensuring that emissions of pollutants remain within acceptable limits. Therefore, the analysis of the physical and chemical properties of these materials is ess
Floresta Ambient.. Publicado em: 05/09/2019
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4. COMPETITION POLICY EVALUATION THROUGH DAMAGE ESTIMATION IN FUEL RETAIL CARTEL IN LONDRINA, BRAZIL
RESUMO Este trabalho estima os danos causados pelo cartel nos postos de gasolina na cidade de Londrina, Paraná, na região sul do Brasil, usando tanto uma equação, quanto um modelo estrutural de demanda e oferta. Documentos do Conselho Administrativo de Defesa Econômica (CADE) ajudam a caracterizar os postos envolvidos na colusão nos mercados de etanol
Rev. econ. contemp.. Publicado em: 26/08/2019
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5. Evaluation of mortar properties obtained through partial substitution of Portland cement by ashes of oil palm empty fruit bunch
Resumo Atualmente, o óleo de palma é líder em produção e consumo dentre os óleos comestíveis comercializados, com uma produção mundial que ultrapassa 66 milhões de toneladas anuais. Estima-se que a produção de resíduo da queima do engaço do dendê como combustível nas caldeiras corresponde a 5% em massa do total de óleo extraído. Este trabal
Cerâmica. Publicado em: 15/08/2019
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6. Evaluation of endoglucanase and β-glucosidase production by bacteria and yeasts isolated from a eucalyptus plantation in the cerrado of Minas Gerais
Resumo O atual cenário ambiental e econômico global tem uma relação intrínseca com o aumento do consumo de combustíveis fósseis causados pelo desenvolvimento de tecnologias e pelo crescimento da população mundial. Assim, é necessário procurar fontes renováveis de biocombustíveis na tentativa de mitigar os efeitos dos combustíveis fósseis no me
Rev. Ambient. Água. Publicado em: 15/07/2019
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7. Evaluation of CO2 Biofixation and Biodiesel Production by Spirulina (Arthospira) Cultivated In Air-Lift Photobioreactor
ABSTRACT Spirulina is a microalgal genre that has the capacity to produce various bioproducts with applications in several areas including the energy sector. The study aimed to assess the ability of CO2 biofixation, biodiesel and other biocompounds production by Spirulina sp LEB 18 cultured in air-lift photobioreactor. The microalgae presented a rich macronu
Braz. arch. biol. technol.. Publicado em: 10/12/2018
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8. Multi-criteria Selection of Distributed Mini Generation Systems Using Rice Husk
ABSTRACT This paper presents a multi-criteria methodology to support decision making for management and selection of distributed mini generation sources (GD) using rice husk. Considering the potential of residual biomass, the developed model is based on the Analytic Hierarchy Process (AHP) method to evaluate the main technological arrangements of generation
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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9. Aerodynamic Evaluation of Different Car Carrier Devices for Drag Reduction Using CFD
ABSTRACT: Aerodynamic of commercial trucks has been extensively studied due to their impact on fuel efficiency; reducing consumption is one of the most important and challenging issues for the trucking industry. In this paper, several Computational Fluid Dynamic (CFD) simulations are performed to evaluate the drag of a standard car carrier and its different
J. Aerosp. Technol. Manag.. Publicado em: 21/09/2018
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10. Activity and Stability of Dispersed Multi Metallic Pt-based Catalysts for CO Tolerance in Proton Exchange Membrane Fuel Cell Anodes
ABSTRACT Studies aiming at improving the activity and stability of dispersed W and Mo containing Pt catalysts for the CO tolerance in proton exchange membrane fuel cell (PEMFC) anodes are revised for the following catalyst systems: (1) a carbon supported PtMo electrocatalyst submitted to heat treatments; (2) Pt and PtMo nanoparticles deposited on carbon-supp
An. Acad. Bras. Ciênc.. Publicado em: 16/04/2018
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11. Evaluation of the Influence of Surface Finishing on the Corrosion Resistance of HVOF Applied Inconel 625 Coatings on Steel
In this work, the corrosion resistance of Inconel 625 coatings applied to AISI 4140 steel plates was evaluated. Coatings were produced by High Velocity Oxygen Fuel (HVOF) by use of two different equipment which use either kerosene (liquid) or propane (gas) as fuel. The resulting coatings were evaluated in two conditions: as-deposited and after a surface fini
Mat. Res.. Publicado em: 18/12/2017
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12. Biodiesel Glycerides from the Soybean Ethylic Route Incomplete Conversion on the Diesel Engines Combustion Process
An evaluation was made to determine the effect of the glycerides presence resulting from the incomplete conversion of soybean biodiesel produced via alkaline catalysis and ethylic route on engine performance, and emissions in formulations containing 10 and 20% (m/m) of biodiesel used as additives in base diesel with low sulfur content and cetane ratings of 4
J. Braz. Chem. Soc.. Publicado em: 2017-12