Fuel Injection System
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. 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
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2. Effect of desulfurization of diesel and its blends with biodiesel on metallic contact
The current environmental scenario has required changes in fuel nature, in order to minimize the harmful effects caused by sulfur in diesel. However, reductions in sulfur content promote loss of its lubricity and consequently wear in the injection system of the diesel engine. This study aimed to investigate the influence of sulfur minimization on fuel lubric
Mat. Res.. Publicado em: 22/07/2014
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3. Micro and nanometric wear evaluation of metal discs used on determination of biodiesel fuel lubricity
The contact of diesel fuel with engine subsystems demands a good wear resistance. Lubricity is an important feature for integrity of injection system and the sulphur composites are primarily responsible for lubrication of the injector nozzle. Biodiesel is responsible for partially restoring the lubricity of diesel fuel that presents low levels of sulphur com
Mat. Res.. Publicado em: 04/07/2014
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4. Determinação eletroquímica de glicerol em biodiesel por amperometria de múltiplos pulsos com eletrodo de ouro
Biodiesel is the fuel obtained from vegetable oils or animal fats that can partially or totally replace diesel oil. Besides being obtained from renewable sources, biodiesel is less polluting than diesel and biodegradable. One disadvantage of biodiesel is the byproduct of transesterification reaction of raw material, glycerol, which can cause damages to combu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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5. Determinação de etanol e metanol em álcool combustível e gasolina empregando métodos eletroanalíticos
In this present work two analytical procedures are presented. The first deals with the simultaneous determination of ethanol (EtOH) and methanol (MetOH) in fuel ethanol samples using Cyclic Voltammetry (CV) and the second, the determination of EtOH in fuel ethanol and gasohol using Batch Injection Analysis with Multiple Pulses Amperometric detection (BIA-MPA
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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6. Análise de falhas em tubos sem costura de aço St52 utilizados em motores diesel / Failure analysis in seamless pipes of St52 steel used in Diesel Engines
The carbon steel with high manganese in accordance with Din 1.0580 (St52) seamless 8 x 3 mm diameter has been used into fuel injection system of the electronic diesel king with pressure up to 1300 bar. This tube presented short life on durability tests due to inner cracks created during rolling process. The tube produced in Brazil and used nowadays in was co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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7. Remediation of soils contaminated by diesel fuel using a system of washing with microemulsion / Remediação de solos contaminados com óleo diesel utilizando um sistema de lavagem com microemulsão
The underground reservoirs of fuel retailing system represent an environmental threat, because once in bad conservation, these tanks allow fuel leakage and infiltration. For soil contaminated with fuel, such as diesel oil, the present study introduces the microemulsion systems used by the method of washing. In tests carried out in column with a sample of san
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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8. Desenvolvimento de um gerenciador eletrônico para motores tricombustível. / Development of an electronic controller for tri-fuel engines.
O objetivo do desenvolvimento do projeto foi minimizar uma das principais desvantagens no uso do gás natural veicular, que é a perda de potência, e aumentar sua eficiência volumétrica através da construção de um circuito eletrônico capaz de gerenciar de forma eficiente a injeção do gás. O aumento do rendimento é obtido através do gerenciamento
Publicado em: 2010
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9. Modelagem e controle de microturbina a gás do tipo split-shaft. / Modeling and control of slip-shaft gas microturbine.
The objective of the present work is the development of the model of a split-shaft micro gas turbine with feed back control system. A bibliographical review of the works on control of gas turbines indicated that there are very few works dealing this type of gas turbines. The model was developed starting from the basic geometry of the turbine and applying the
Publicado em: 2010
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10. Adsorption of di-2-pyridylketone salicyloylhydrazone (DPKSH) on resin IRA 402: use in spectrophotometric determination of Cu(II) ions by FIA after separation and pre-concentration in solid phase / Adsorção da di-2-piridil cetona saliciloilhidrazona (DPKSH) em resina ira 402: aplicação na determinação espectrofotométrica de íons Cu(ii) por análise por injeção em fluxo (FIA) após separação e pré-concentração em fase sólida
Pre-concentration in solid phase provides advantages such as simplicity, automation easiness, improvement in detection limits, possibilities to combine it with Flow Injection Analysis (FIA), integration of reaction and retention phases, lower consumption of reagents and increase in selectivity. This process requires the development and characterization of ne
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/09/2009
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11. Intelligent system architecture for virtual sensing of oxygen in bi-fuel vehicle with electronic fuel injection / Arquitetura de sistema inteligente para sensoriamento virtual de oxigênio em veículos bicombustíveis com injeção eletrônica
The automotive industry is one of the most important sectors in Brazilians economy and in the world. In recent years, this industry has been forced to improve the performance of their produced vehicles and to reduce their costs. One of the landmarks of this transformation was the development of the oxygen sensor, which is one of the main elements of the engi
Publicado em: 2009
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12. UTILIZAÇÃO DE ÓLEO DE GIRASSOL COMO COMBUSTÍVEL EM UNIDADE DE POTÊNCIA MONOCILINDRO CICLO DIESEL / USE OF CRUDE SUNFLOWER OIL AS FUEL IN A DIESEL CYCLE MONO-CYLINDER ENGINE
The many oil crises that have occurred in the past decades and the dependence of the Brazilian energy matrix on fossil fuels, as well as the environmental problems caused by their use, have pressed for advances in the search for new alternative fuels and, in a way, also made them possible. Fuels made from vegetable oils are particularly interesting, as they
Publicado em: 2009