A Study on the Atomization Characteristics of the Ultrasonic-Energy-Irradiation High Viscosity Biodiesel Blended Fuel

초음파 에너지 조사 고 점도 바이오디젤 혼합연료의 미립화 특성에 관한 연구

  • 송용식 (제천기능대학 카 일렉트로닉스) ;
  • 양인권 (제천기능대학 카 일렉트로닉스) ;
  • 김봉석 (원주대학 동력기계과) ;
  • 류정인 (충남대학교 기계공학부)
  • Published : 2004.11.01

Abstract

This experiment was undertaken to investigate the atomization characteristics of the high viscosity biodiesel blended fuel and ultrasonic energy irradiation one. Test fuels were conventional diesel fuel and biodiesel one. We compared to the characteristics of viscosity and surface tension, SMD between high viscosity biodiesel blended fuel and ultrasonic energy irradiation one. Sauter mean diameter was measured under the variation of the spray distance. Viscosity and surface tension were measured under the variation of the time trace. To measure the droplet size, we used the Malvern system 2600c. Droplet size distribution was analyzed from the result data of Malvern system. Through this experiment, we found that the condition of the ultrasonic energy irradiation situation had smaller Sauter mean diameter of droplet, viscosity and surface tension than those of the conventional situation.

본 연구는 초음파 개질 바이오 디젤유의 점도와 표면장력에 대한 연료의 물리적 특성, 분무 미립화 특성에 관한 심층적이고 체계적인 연구에 중점을 두었다. 이를 규명하기 위하여 초음파 재질 연료와 개질 되지 않은 연료의 상대 비교 분석을 통한 연료특성과 연료분사펌프의 회전수 및 노즐선단 거리변화에 의한 입경측정의 상관성을 정립하였다.

Keywords

References

  1. Goering, C.E., et al.: 'Fuel properties of eleven vegetable oils', Transactions of the ASAE, 25(6), 1472 (1982)
  2. Niemczewski, B.: 'A comparison of ultrasonic cavitation intensity in liquids', Ultrasonics, May, 107 (1980)
  3. Ryu, J.I.: 'A study on the performance of the intake fuel atomization by ultrasonic', Transactions of the Industrial Technology Institute, Chungnam Univ.,2(1), 46 (1987)
  4. Choi, D.S., Ryu, J.I. and Yang, O.Y.: 'A study on the performance improvement of the ultrasonic fuel supply device type gasoline automobile (I)', Transactions of the Industrial Technology Institute, Chungnam Univ., 7(2), 79 (1992)
  5. Ju, E.S., Jeong, S.Y., Kang, D.W. and Kim, J.e.: A study on the atomization of a highly viscous biodiesel oil', Transaction of the Korean Society of Automotive Engineers, 5(1), 146 (1997)
  6. Ju, E.S., Song, M.G., Choi, W.C. and Park, Y.H.: 'A study on characteristics of the liquid atomization by ultrasonic', Fall Conference Proceeding of KSAE, 1, 21 (1998)
  7. Hiroyasu, H., et at.: 'Disintegrating process and spray characterization of fuel jet injected by a diesel nozzle', SAE Paper No.840275 (1984)
  8. Lee, B.O., Song, Y.S. and Ryu, J.I.: 'Effects of the ultrasonic energy on smoke reduction of diesel engine', Spring Conference Proceeding of KSAE, I, 222 (2003)
  9. 千葉近: '超音波による 液體微粒化の 硏究', 日本機械學會紙(B編), 51(471), 3589 (1985)