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Ignition delay, lift-off and soot luminescence in Diesel-ethanol spray combustion

Chengjun Du (Institutionen för tillämpad mekanik, Förbränning) ; Mats Andersson (Institutionen för tillämpad mekanik, Förbränning) ; Sven Andersson (Institutionen för tillämpad mekanik, Förbränning)
6th International Conference on Sustainable Automotive Technologies, 29-30 Sep. 2014, Gothenburg, Sweden. (2014)
[Konferensbidrag, refereegranskat]

To investigate the influence of ethanol blending in Diesel fuel on the spray combustion characteristics, experiments were carried out in an optically accessed high-pressure / high-temperature spray chamber. Three different fuels were investigated: (1) Diesel, based on the European EN590 standard; (2) E10 with 10% ethanol and (3) E20 with 20% ethanol. Gas conditions were kept at a constant gas density of 24.3 kg/m3 at a lower combusting temperature (550 ºC, 57.3 bar) and a higher combusting temperature (600 ºC, 60 bar). The experimental results showed that ignition delay and delay time of soot formation were increased as ethanol was blended in Diesel fuel. Less soot luminescence was observed and longer lift-off length was measured in Diesel-ethanol blends compared to pure Diesel.

Nyckelord: Ethanol, Spray combustion

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Denna post skapades 2014-10-31.
CPL Pubid: 205160


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Förbränning


Termisk energiteknik

Chalmers infrastruktur

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Denna publikation ingår i:

Spray and Spray Combustion Characteristics of Diesel-Ethanol Fuel Blends