Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Microscopic Spray Characteristics in the Effervescent Atomizer with Two Aerator Tubes

  • Kim, Hyung-Gon (Graduate School, Department of Mechanical Engineering, Kagoshima University) ;
  • Toshiaki Yano (Department of Mechanical Engineering, Kagoshima University) ;
  • Song, Kyu-Keun (RCIT, Chonbuk National University) ;
  • Torii Shuichi (Department of Mechanical Engineering and Materials Science, Kumamoto University)
  • Published : 2004.09.01
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Abstract

An experimental study is performed on atomization characteristics and stable operating conditions for the injection of high viscous waste vegetable oil using an effervescent atomizer with 2 aerator tubes. Consideration is given to the effects of ALR and liquid viscosity on the velocity and mean diameter of the injected droplet. It is found that (i) as ALR increases, the axial velocity of the droplet is increased, while half-velocity width and SMD are decreased regardless of the change in liquid viscosities, (ii) the rate of fine drop distribution occupied in the total spray field is increased with an increase in ALR, and (iii) the effect of viscosity on the atomization characteristics is minor. Consequently, it is expected that the effervescent atomizer will exhibit an excellent atomization performance at the high ALR condition, regardless of liquid viscosities.

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References

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