STRATEGY FOR NMHC REDUCTION IN PFI FLEX FUEL ENGINES

STRATEGY FOR NMHC REDUCTION IN PFI FLEX FUEL ENGINES

Godoy, Andre Menegon; Carvalho, Carlos Alberto de; Junior, Fernando de Oliveira; Silva, Leandro Luiz Franco da; Leder, Martin Marcelo; Ferreira, Gomes Paulo Cesar de; Filho, Romulo Rossi Pinto

Artigo Completo:

The vehicular emission of non-methane organic gases and compounds (NMOG) plays an important role in the formation of ozone and its contribution to the “photochemical smog” and therefore has been one of the main focuses of automotive development, in order to minimize its environmental impact. Some countries in Europe and the USA already control the NMOG emission, mainly composed of non-methane hydrocarbons (NMHC), aldehydes, ketones, and non-burned ethanol (EtOH). In Brazil, where the high scale flex fuel market is in series production since 2003, currently 0.05 g/km of NMHC are allowed for passenger cars (based on the ongoing PROCONVE legislation, L6 stage). The deduction of the non-burned ethanol fraction is also allowed [1] [2] [10]. In order to support the NMHC reduction and minimize the impact of flex fuel engines on the environment, this study presents some engine calibration options at different PFI vehicles, considering the usage of the heated cold start system based on heated fuel rail.

The vehicular emission of non-methane organic gases and compounds (NMOG) plays an important role in the formation of ozone and its contribution to the “photochemical smog” and therefore has been one of the main focuses of automotive development, in order to minimize its environmental impact. Some countries in Europe and the USA already control the NMOG emission, mainly composed of non-methane hydrocarbons (NMHC), aldehydes, ketones, and non-burned ethanol (EtOH). In Brazil, where the high scale flex fuel market is in series production since 2003, currently 0.05 g/km of NMHC are allowed for passenger cars (based on the ongoing PROCONVE legislation, L6 stage). The deduction of the non-burned ethanol fraction is also allowed [1] [2] [10]. In order to support the NMHC reduction and minimize the impact of flex fuel engines on the environment, this study presents some engine calibration options at different PFI vehicles, considering the usage of the heated cold start system based on heated fuel rail.

Palavras-chave:

DOI: 10.5151/engpro-simea2015-PAP198

Referências bibliográficas

• [1] MELO, T.C.C. de; COLNAGO, K.; LOUREIRO, L.N., “Implantação dos Gases Orgânicos do Tipo não Metano (NMOG) no Brasil”; SIMEA. São Paulo, 2009. Available in: www.aea.org.br/aea2009/downloads/simea09/apres_pap/PAP0069.pdf, access on Abril 2015.
• [2] SILVA, K. C. C., “Estudo de Emissões Legisladas, Álcool não Queimado e Potencial de Formação de Ozônio de um Veiculo Leve Bicombustível”; study presented during the post-graduation program focused on technology development from LACTEC, Curitiba, 2014.
• [3] POMALESKI, D. R. M.; CONTI, E. W.,”Emissão de Compostos Orgânicos por Veículos Flexfuel de Acordo com Diferentes Regulamentações”. In: XVII Congresso e Exposição Internacional de Tecnologia da Mobilidade, 2008, São Paulo. SAE Paper 2008-36-0259. SAE Brasil, 2008.
• [4] Brasil, Ministério do Meio Ambiente, Instrução Normativa IBAMA n°54/2004, Regulamenta a medição de NMHC. Published at D.O.U. from 22/11/2004.
• [5] “California Non-Methane Organic Gas Test Procedures”, California Environmental Protection Agency, AIR RESOURCES BOARD, Amended July 30, 2002.
• [6] “European Directive 70/220/EEC”.
• [7] CAVALHIERI, H. M.; LEDER M.M.; “Influence of Fuel Heating in the Generation of CO2”; SAE International; SAE paper 2010-36-0100.
• [8] LEDER, M.M.; “Unburned Ethanol Emissions Reduction Using a Fuel Heating System”; Engine-Expo 2014, Novi, Michigan, USA.
• [9] CFR, 2012. US Code of Federal Regulations, Title 40, Part 86, Appendix I, Revised as of July 1, 2012, 543-610. Available on www.gpo.gov/fdsys/pkg/CFR-2012-title40-vol20/pdf/CFR-2012-title40-vol20.pdf.
• [10] ABNT – NBR6601; ”Veículos rodoviários automotores leves – Determinação de hidrocarbonetos, monóxido de carbono, óxidos de nitrogênio, dióxido de carbono e material particulado no gás de escapamento”; Rio de Janeiro, 2012.
• [11] FLEX START™ System,Robert Bosch Website. Available in www.flexstart.com.br, access on May 2015.
• [12] FLEX FUEL. In Robert Bosch Website. Available in www.bosch.com.br/br/autopecas/produtos/injecao/flex_fuel.asp. Access on: May 2015.
• [13] SAMENFINK W., ALBRODT H., FRANK M., GESK M., MELSHEIMER A. and THURSO J., “Strategies to Reduce HC-Emissions During the Cold Starting of a Port Fuel Injected Gasoline Engine”, SAE Paper 2003-01-0627.

Como citar:

Godoy, Andre Menegon; Carvalho, Carlos Alberto de; Junior, Fernando de Oliveira; Silva, Leandro Luiz Franco da; Leder, Martin Marcelo; Ferreira, Gomes Paulo Cesar de; Filho, Romulo Rossi Pinto; "STRATEGY FOR NMHC REDUCTION IN PFI FLEX FUEL ENGINES", p-575-582. In: In Anais do XXIII Simpósio Internacional de Engenharia Automotica - SIMEA 2014 [=Blucher Engineering Proceedings]. São Paulo: Blucher, 2015. . São Paulo: Blucher, 2015.
ISSN 23577592, DOI 10.5151/engpro-simea2015-PAP198