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Previous issue date: 2010-12-18 / Flex-fuel vehicles are equipped with Otto Cycle internal combustion engines and have
the capability of functioning with more than one type of fuel, mixed at the same tank and
burned in the combustion chamber simultaneously. This sort of motorization is a world
pattern due to the scarcity of petroleum, the trade of several types of fuels, technology
advances and the restriction imposed to gas emissions to the atmosphere. In Brazil, the Flexfuel
vehicles are a reality, specially the ones using fuel with 20 to 25% anhydrous alcohol
mixed with gasoline and those that use natural gas or original liquid fuel (gasoline or hydrated
ethanol). The Brazilian model Fiat Siena, the object of this present scientific investigation, is
equipped with a unique electronic central capable of managing the liquid or gaseous fuels.
The purpose of this research was to perform a comparative analysis in terms of performance
(in terms of both potency and consumption) of a tetra-fuel vehicle - using a chassis
dynamometer, operating with different fuels: common gasoline, premium gasoline, Podium
gasoline, ethanol or natural gas. It became necessary to develop a bench of tests and trials
procedures, as well as to know the functioning of the electronic management of the vehicle
under analysis. The experiments were performed at the automotive laboratory in CTGAS-ER
(Center of Gas Technologies and Renewable energies) at the light of Brazilian standard
ABNT, NBR 7024: Light on-road vehicles - measurement of fuel consumption. The essay
results on specific fuel consumption using common gasoline, premium gasoline and
Podium gasoline have shown similar results, both for urban and road driving cycles / Os ve?culos flex s?o equipados com um motor de combust?o interna do ciclo Otto e
t?m como caracter?stica a capacidade de funcionar com mais de um tipo de combust?vel,
misturados no mesmo tanque e queimados na c?mara de combust?o simultaneamente. Este
tipo de motoriza??o ? uma tend?ncia mundial devido ? escassez do petr?leo, a
comercializa??o de v?rios tipos de combust?veis, aos avan?os tecnol?gicos dos sistemas de
gerenciamento eletr?nico de combust?vel e ?s restri??es as emiss?es de gases poluentes na
atmosfera. No Brasil, os ve?culos flex s?o uma realidade, com destaque para os ve?culos
alimentados com 20 a 25% do ?lcool anidro misturado com gasolina e os que utilizam g?s
natural ou o combust?vel l?quido original (gasolina ou etanol hidratado). O FIAT SIENA
TETRAFUEL, objeto da presente investiga??o, ? equipado com uma ?nica central eletr?nica
capaz de gerenciar os combust?veis l?quidos ou gasoso. A pesquisa em tela teve como
prop?sito a an?lise comparativa de desempenho (pot?ncia e consumo) de um ve?culo tetracombust?vel
simulando ciclos de condu??o urbano e de estrada em um dinam?metro de
chassi, operando com os combust?veis: gasolina comum (tipo C), gasolina aditivada (tipo C),
gasolina Podium (Premium), etanol (AEHC) ou g?s natural (GNV). Foi necess?rio
desenvolver bancada de testes e procedimentos de ensaios, como tamb?m conhecer o
funcionamento do gerenciamento eletr?nico do ve?culo em quest?o. Os ensaios foram
realizados no Laborat?rio do Centro de Tecnologias do G?s e Energias Renov?veis de acordo
com a norma ABNT NBR 7024 - Ve?culos rodovi?rios leves Medi??o do consumo de
combust?vel. Os resultados dos ensaios de consumo espec?fico com as gasolinas comum,
aditivada e Podium resultaram em valores pr?ximos, tanto no ciclo de condu??o urbano como
tamb?m no ciclo de condu??o de estrada
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15645 |
| Date | 18 December 2010 |
| Creators | Laranja, Gil Colona |
| Contributors | CPF:22174443449, http://lattes.cnpq.br/8673332414572221, Fontes, Francisco de Assis Oliveira, CPF:20300190468, http://lattes.cnpq.br/9043538628554844, Souza, Luiz Guilherme Meira de, CPF:25094955420, http://lattes.cnpq.br/0801747108308706, Grilo, Marcelo Bezerra, CPF:11208511491, http://lattes.cnpq.br/9758227561901031, Barbosa, Cleiton Rubens Formiga |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Mec?nica, UFRN, BR, Tecnologia de Materiais; Projetos Mec?nicos; Termoci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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