Butanol, which can be produced from biomass, has been suggested as an alternative to ethanol, due to its higher energy density, lower oxygen content and more favorable hygroscopic and corrosive properties. In the Czech Republic, E85 is widely sold at fuel stations and used in ordinary vehicles, both with and without aftermarket control units. This work investigates the potential of ordinary automobiles to run on butanol, and the associated effects on exhaust emissions under real driving conditions.A Škoda Felicia car with a throttle body injection and a Škoda Fabia car with a multi-point port injection have been run on gasoline and its mixtures with up to 85% volume of ethanol, of n-butanol, and of isobutanol (2-methyl-1-propanol). An auxiliary control unit has been used with higher alcohol content. On each fuel, each car was driven 5-6 times along a local test route. The emissions of gaseous pollutants and other parameters were measured by a portable on-board emissions monitoring system.The results suggest that the engine control units of both cars prolonged the fuel injection pulse width allowing the engines to operate on all tested mixtures. On the throttle body injected engine, oscillations of air to fuel ratio to both rich and lean mixture compositions were observed for all alcohol containing mixtures, especially for mixtures with high butanol share. This resulted to significant increase of nitrogen oxides emissions with a lack of significant decrease of carbon monoxide. On the engine with multipoint injection system, only minor general shift of air to fuel ratio was observed, with minor changes of air to fuel ratio peak to peak value. This resulted in less apparent changes of gaseous pollutants production.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Real Driving Emissions of Two Older Ordinary Cars Operated on High-Concentration Blends of N-Butanol and ISO-Butanol with Gasoline


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Dittrich, Ales (Autor:in) / Mazac, Martin (Autor:in) / Pechout, Martin (Autor:in) / Vojtisek-Lom, Michal (Autor:in)

    Kongress:

    12th International Conference on Engines & Vehicles ; 2015



    Erscheinungsdatum :

    2015-09-06




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Real Driving Emissions of Two Older Ordinary Cars Operated on High-Concentration Blends of N-Butanol and ISO-Butanol with Gasoline

    Pechout, Martin / Dittrich, Ales / Mazac, Martin et al. | British Library Conference Proceedings | 2015


    Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend

    Mazac, Martin / Pechout, Martin / Vojtisek-Lom, Michal | SAE Technical Papers | 2013


    Real-World On-Road Exhaust Emissions from an Ordinary Gasoline Car Operated on E85 and on Butanol-Gasoline Blend

    Vojtisek-Lom, M. / Pechout, M. / Mazac, M. et al. | British Library Conference Proceedings | 2013


    Operation of an Ordinary PFI Engine on n-butanol and Iso-butanol and Their Blends with Gasoline

    Dittrich, Ales / Pechout, Martin / Vojtisek-Lom, Michal | SAE Technical Papers | 2014


    Exhaust gas emissions of butanol, ethanol, and methanol-gasoline blends

    Rice, R.W. / Sanyal, A.K. / Elrod, A.C. et al. | Tema Archiv | 1991