A study of effects of volatility on butanol-biodiesel-diesel spray and combustion

Yu Liu, Way Lee Cheng, Ming Huo, Chia Fon Lee, Jun Li

Research output: Contribution to journalConference articlepeer-review


Ternary blends of butanol-biodiesel-diesel with different blending ratios were tested inside a constant volume chamber under various ambient temperatures so as to investigate the spray and combustion characteristics of the fuels. Applying the high speed imaging, a sudden drop in spray penetration was observed at ambient temperature of 800 K and 900 K for fuels with certain blending ratio, but not at 1000 K and 1200 K. When the spray penetration of the butanol-biodiesel-diesel blends was compared to that of the biodiesel-diesel blends under non-combusting environment, a sudden drop in spray penetration length was also observed at 1100 K. The results indicated that for the non-combusting case, the tip of the spray jet erupted into a plume sometime after injection for the butanol-biodiesel-diesel blend at an ambient temperature of 1100 K. Such phenomenon was not seen with the biodiesel-diesel blend, neither with the same fuel but at a lower ambient temperature of 900 K. It is concluded that micro-explosion could occur under particular conditions for the butanol-biodiesel-diesel blend, which was consistent with previous theoretical study in the literature.

Original languageEnglish (US)
JournalSAE Technical Papers
StatePublished - 2011
EventSAE 2011 World Congress and Exhibition - Detroit, MI, United States
Duration: Apr 12 2011Apr 14 2011

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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