It has been largely announced that automotive industry is going through a disruption moment regarding applied powertrain technologies due to the efforts to decrease CO2 and pollutant gases emission, mainly through related legislations of different countries and regions. European and Asian future legislations are going to demand some electrification introduction, whether hybrid or fully electric, but even different technologies such as fuel cells and synthetic fuels over the next few years. In Brazil, with the upswing of biofuels use, considering a well to wheel CO2 emission calculation, the usage of hydrated ethanol or ethanol mixed up with gasoline in different proportions is a great solution for a continuous and progressive automotive fleet decarbonization, in parallel or associated with electrification, in a favorable pace for the market conditions.This evolution, for instance, could be better planned to avoid impacts on PowerGrid and in internal combustion engines portfolio at market, since hybrid and electric vehicles which are still too costly and depend on subsidies for sale. This paper aims to show how water injection technology enables high efficiency flex fuel engines development, focused on ethanol performance, granting to Brazil a smoother path through future national fleet electrification. The energy efficiency in Mega Joules per Kilometer, improved through higher geometrical compression ratio, enhanced up to 7.3% (from 1.59 to 1.47 MJ/km) in a natural aspirated port fuel injection vehicle and up to 4.8% (from 1.85 to 1.76 MJ/km) in a turbocharged direct injection vehicle. Following this path, Flex Fuel engines can be better explored and improved if the right technology is used. Setting up the geometrical compression ratio focusing on ethanol properties could rise both ethanol and gasoline energy efficiency, as water injection can control knocking phenomena through managing combustion chamber temperature.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Water injection enabling high efficiency flex fuel engines development


    Weitere Titelangaben:

    Sae Technical Papers



    Kongress:

    SAE BRASIL 2021 Web Forum ; 2021



    Erscheinungsdatum :

    2022-02-04




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Start Energy Efficiency on Flex Fuel Engines

    Engler Pinto, Claudio M. / Algate, Victor Hugo S. | SAE Technical Papers | 2015


    High efficiency flex-fuel engines, a sustainable alternative for mobility

    Mendes, Carlos Fernando / Lopes, Gustavo Santos / Baeta, José Guilherme Coelho et al. | SAE Technical Papers | 2018


    Volumetric Efficiency and Air-Fuel Ratio Analysis For Flex Fuel Engines

    Engler-Pinto, Claudio M. / de Nadai, Leandro | SAE Technical Papers | 2008


    High Efficiency Flex-Fuel Engines and the End of the 70% Paradigm

    Teixeira, Alysson Fernandes / Mendes, Carlos Fernando / Franieck, Erwin Karl et al. | SAE Technical Papers | 2017


    Influence of hot fuel injection on air/fuel mixture preparation and effects on Flex Fuel Engines

    Lepsch, Fernando / Brunocilla, Marcello F. | SAE Technical Papers | 2006