Automotive Fuels
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Nitrile rubber and carboxylated nitrile rubber resistance to soybean biodiesel
Abstract Biodiesel has been considered a suitable substitute for petroleum diesel, but their chemical composition differs greatly. For this reason, biodiesel interacts differently than petroleum diesel with various materials, including rubbers. Therefore, the resistance of some elastomers should be thoroughly evaluated, specifically those which are commonly
Polímeros. Publicado em: 15/03/2018
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2. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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3. Desenvolvimento de um método para levantamento de tecnologias de materiais empregados no trem de força automotivo (powertrain) a partir de patentes / Devolopment of a patent based method for surveying materials technologies used in automotive powertrain
This research approaches the study from patents of technologies for materials used in power train of motor vehicles, to provide additional information in order to support decision making in this universe, especially in the selection of materials and their processing. The powertrain is currently the most important subsystem in a car, being appointed as chief
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/05/2012
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4. Uso alternativo de glicerina em mistura com gasolina ou etanol em motores de ciclo Otto
O uso de biocombustíveis geralmente apresenta inúmeros benefícios, incluindo sustentabilidade, redução dos gases estufa, desenvolvimento regional, social e agrícola. Assim, o uso de biocombustíveis, como o biodiesel, é visto hoje como uma alternativa extremamente viável. O processo produtivo gera, em média, para cada tonelada (1000 kg) de biodiesel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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5. Efeitos do sistema de recirculação dos gases de escape no controle de emissões de NOx em motores a diesel / Effects of exhaust gas recirculation to control NOx emissions in Diesel engines
Automotive vehicles are responsible for the most of locomotion in the modern world. The mainly propulsive energy used is based on burning of fossil fuels. In real combustion systems the chemical process involved a high complexity which results mainly in five types of air pollutants, that are, carbon monoxide, organic compounds as hydrocarbons unburned or par
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/05/2010
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6. 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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7. Uso de ATR/FTIR e FTNIR associado a técnicas quimiométricas para quantificação de aditivos em gasolina automotiva
Formation of deposits is a very common problem in vehicles due to the formation of gum and sludge by burning fuel inside the engine. Additives detergent / dispersants are designed to reduce the influence of these agents in the proper functioning of automotive vehicles. These components are polymeric amine matrix added in the fuel distributor at the concentra
Publicado em: 2009
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8. Utilização de células a combustível tipo PEM como alternativa na geração auxiliar em instalações elétricas de grande porte. / The use of PEM type fuel cells as an alternative to auxiliary generation of large eletrical instalations.
The current global energy situation shows the dependence on the electric energy, and the importance of the rational use of energy and the reduction of pollutants in the production of energy. The hydrogen as source of generation of electrical energy in fuel cells uses an abundant resource in Earth, and produces electrical energy with no pollution. The fuel ce
Publicado em: 2009
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9. Capacitive microsensor for evaluation of the quality of automotive fuels. / Micro-sensor capacitivo para avaliação da qualidade de combustíveis automotivos.
This work proposes a capacitive sensor with interdigitated electrodes in order to evaluate the quality of automotive fuel. Interdigitated electrodes have some interesting features for this type of sensor. Among them, they increase the capacitance by having several capacitors in parallel, and by having a structure feasible to be manufactured by conventional m
Publicado em: 2008
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10. UM ESTUDO SOBRE O IMPACTO AMBIENTAL DOS COMBUSTÃVEIS AUTOMOTIVOS NA QUALIDADE DO AR NA RMSP â REGIÃO METROPOLITANA DE SÃO PAULO - PERÃODO DE 2001 A 2005 / A STUDY ON THE ENVIRONMENTAL IMPACT OF AUTOMOTIVE FUELS IN THE QUALITY OF THE AIR IN METROPOLITAN AREA OF SÃO PAULO PERIOD FROM 2001 TO 2005
O impacto ambiental dos combustÃveis automotivos na qualidade do ar à uma das grandes problemÃticas do mundo atual. O presente trabalho teve como objetivo avaliar as condiÃÃes do ar na RMSP (RegiÃo Metropolitana de SÃo Paulo), no perÃodo de 2001 a 2005. Apresenta, principalmente, um estudo do impacto das emissÃes de gases por veÃculos leves, levand
Publicado em: 2006
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11. Metodologia experimental para a maximização do desempenho de um motor multicombustível turboalimentado sem prejuízo à eficiência energética global
The new trends of the automotive market require the development of a new concept of engines using different types of fuel, mainly those resulting from alternative sources of energy. Moreover, the multifuel engines available in the market display only one volumetric compression ratio, which leaves space for the development of systems that allow for different
Publicado em: 2006
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12. SIMULATION MODEL OF THE OPERATION OF TANK TRUCK LOADING AT AN AUTOMOTIVE FUELS DISTRIBUTION PLANT / MODELO PARA SIMULAÇÃO DA OPERAÇÃO DE CARREGAMENTO DE CAMINHÕES-TANQUE EM UMA BASE DE DISTRIBUIÇÃO DE COMBUSTÍVEIS AUTOMOTIVOS
This dissertation studies the effects of compartmentalization of tank trucks on the operation of automotive fuels distribution plants. The operation is part of the supply chain of such fuels. This work looks at the current trend of compartment modification and assesses the impact of this modification in that portion of the distribution chain. The present wor
Publicado em: 2005