Blending Octane Number of Ethanol in HCCI, SI and CI Combustion Modes

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Blending Octane Number of Ethanol in HCCI, SI and CI Combustion Modes

Johansson, Bengt / Morganti, Kai / Al-Qurashi, Khalid / Sarathy, Mani / Waqas, Muhammad / Naser, Nimal

The effect of ethanol blended with three FACE (Fuels for Advanced Combustion Engines) gasolines, I, J and A corresponding to RON 70.3, 71.8 and 83.5, respectively, were compared to PRF70 and PRF84 with the same ethanol concentrations, these being 2%, 5%, 10%, 15% and 20% by volume. A Cooperative Fuel Research (CFR) engine was used to understand the blending effect of ethanol with FACE gasolines and PRFs in spark-ignited and homogeneous charge compression ignited mode. Blending octane numbers (BON) were obtained for both the modes. All the fuels were also tested in an ignition quality tester to obtain Blending Derived Cetane numbers (BDCN). It is shown that fuel composition and octane number are important characteristics of all the base fuels that have a significant impact on octane increase with ethanol. The dependency of octane number for the base fuel on the blending octane number depended on the combustion mode operated. The aromatic composition in the base fuel, effects blending octane number of the mixture, for fuels with higher aromatic content lower blending octane numbers were observed for ethanol concentration.

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Dokumentinformationen

Titel :

Blending Octane Number of Ethanol in HCCI, SI and CI Combustion Modes

Weitere Titelangaben:

Sae Int. J. Fuels Lubr
Sae International Journal of Fuels and Lubricants

Beteiligte:

Johansson, Bengt (Autor:in) / Morganti, Kai (Autor:in) / Al-Qurashi, Khalid (Autor:in) / Sarathy, Mani (Autor:in) / Waqas, Muhammad (Autor:in) / Naser, Nimal (Autor:in)

Kongress:

SAE 2016 International Powertrains, Fuels & Lubricants Meeting ; 2016

Erschienen in:

Sae International Journal of Fuels and Lubricants ; 9 , 3 ; 659-682

Erscheinungsdatum :

2016-10-17

Format / Umfang :

24 pages

ISSN :

1946-3952 , 1946-3960

DOI :

https://doi.org/10.4271/2016-01-2298