Measurements of characteristics of evaporating sprays: (Quantitative analysis of fuel droplet diameter)

Byeongil An*, Yasuhiro Daisho

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


An experimental study was carried out to verify the feasibility of a quantitative analysis of fuel droplet diameter at high pressures and temperatures in combustion systems. A fueling system was developed to atomize fuel into droplets of the same diameter. Using this system, fueling was made into a visualized device where high pressure and temperature nitrogen flowed under steady-state conditions. The laser-induced fluorescence method was utilized to determine n-dodecane fuel and iso-octane fuel droplet behavior and the phase Doppler particle analyzer was used to measure the diameter and velocity of the droplets. As a result, it was confirmed that a quantitative analysis of fuel droplets is possible. The results indicate that due to its lower boiling point, iso-octane droplets tend to evaporate much faster the n-dodecane droplets.

Original languageEnglish
Pages (from-to)46-51
Number of pages6
JournalJSME International Journal, Series B
Issue number1
Publication statusPublished - 2000 Feb


  • Droplet generator
  • Fuel droplet
  • Fuel evaporation
  • Laser-induced fluorescence method
  • Phase doppler particle analyzer

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Mechanical Engineering


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