Numerical Simulation of Miller Cycle Using E100 for CO2 Benefit English

  • Category Technical paper
  • Related event International Congress : SIA Powertrain - Versailles 2015 - 27-28 May 2015
  • Edition SIA
  • Date 05/27/2015
  • Author M. L. Airoldi, F. Y. Turkovics, C. Dumand, F. G. Dias, R. N. C. de Souza, R. Serralvo Neto, G. Guedes - PSA Peugeot Citroën
  • Language English
  • Type PDF file (575.63 Ko)
    (Downloadable immediately on receipt of online payment)
  • Number of pages 8
  • Code R-2015-04-35
  • Fee from 8.00 € to 10.00 €

Brazil CAFE 2020 will require the application of several different strategies to achieve the CO2 emission targets and, in this context, ethanol is one of the opportunity to contribute to lower CO2 emissions.
The Miller cycle has already been widely studied and now it is used on few gasoline and diesel engines in order to lower fuel consumption and improve thermal efficiency [1-4].
Although its benefits have been shown for both naturally aspirated (NA) and turbocharged engines, Miller cycle fueled with pure ethanol has not been completely explored. Some specific ethanol physical properties, to name a few: high octane number (volumetric compression ratio), high latent heat vaporization (cooling effect on air mass) and lower LHV (Lower Heating Value) can provide new perspectives.
This combination of higher compression ratio and ethanol with Miller cycle may show significant improvements on CO2 emissions, and thermal efficiency,
Therefore, a wide investigation on the matter must be done to confirm ethanol capabilities. Within this framework, simulation tools have a key role in initial investigation and engine optimization. It is especially accurate for fuel consumption and CO2 emission predictions.
This paper presents the results of 1D engine simulations of 1.6 litre turbocharged engine running on hydrated ethanol (E100) and regular Brazilian Homologation gasoline (E22).


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