Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지
DOI QR코드

DOI QR Code

Characteristics of Bio-diesel according to Irradiation for Ultrasonic Energy

초음파 에너지 조사에 따른 바이오 디젤 특성

  • Park, Chungyeol (Department of Mechanical Engineering, Graduate School, Kongju National University) ;
  • Choi, Dooseuk (Department of Mechanical & Automotive Engineering, Kongju National University)
  • 박충열 (공주대학교 대학원 기계공학과) ;
  • 최두석 (공주대학교 기계자동차공학부)
  • Received : 2014.10.14
  • Accepted : 2015.01.16
  • Published : 2015.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Since resources of fossil fuels are limited, development of alternative energies is emphasized and research on new-regenerative energy is actively in progress worldwide. In present research, physical and chemical characteristics of mixed fuel are analyzed in detail for the different mixture rate of conventional and bio-diesel and ultrasonic irradiation time. Experimental setup consists of ultrasonic generator, vibrator, horn, and reflector. Various physical and chemical characteristics of fuel are investigated for volumetric mixture rate of bio-diesel from 0 to 100%. As results, viscosity and surface tension is increased as mixture rate of bio-diesel is increased. Also, molecular splits and reunions are increased and decreased repeatedly after some period of time as ultrasonic energy irradiation time is increased. As conclusion of experiments, Olefin rate, Branch index, and Aromatic rate are influenced by ultrasonic irradiation time.

Keywords

References

  1. K. P. Lee, The Effects of 5% Blended Biodiesel on Combustion and Idle Stability in a Common Rail Direct Diesel Engine, M. S. Thesis, Seoul National University of Technology, Seoul, 2007.
  2. S. H. Park, A Study on the Spray and Atomization Characteristics of Biodiesel-ethanol Blending Fuel according to the Mixing Ratio, M. S. Thesis, Hanyang University, Seoul, 2008.
  3. D. J. Lee, Combustion and Emission Characteristics of Biodiesel-bioethanol Blends in a Common-rail Diesel Engine, Ph. D. Dissertation, Hanyang University, Seoul, 2012.
  4. CARB, California's Plan to Reduce Motor Vehicle Pollution, California EPA, Air Resources Board, 1994.
  5. M. Nakayama, "Study of Uniform - Size Liquid Droplet Formation by Ultrasonic Vibration," JSME(B), Vol.52, No.482, 1986.
  6. S. Y. Im, Y. S. Song, Y. C. Jung, D. S. Choi and J. I. Ryu, "An Experimental Study on Physical and Chemical Characteristics with Biodiesel Blended Fuel according to Ultrasonic Energy Irradiation Time," Spring Conference Proceedings, pp.539-546, 2007.
  7. J. K. Yang, J. D. Jung and J. I. Ryu, "A Study on the Performance Improvement of Diesel Automobile Engine with Ultrasonic Fuel Feeding System(II)," Transactions of KSAE, Vol.2, No.6, pp.50-56, 1994.
  8. D. Ensminer, Ultrasonics, 2nd Edn., Marcel Dekker, Inc., 1988.
  9. T. Mochida, "Ultrasonic Atomization of Liquids," ICLAS, Vol.8, No.4, pp.193-199, 1978.
  10. J. V. Droughton, "The Effect of Ultrasonic Mixing of the Fuel on the Performance of an Internal Combustion Engine," SAE 840238, 1984.
  11. D. S. Choi, Y. C. Jung, S. Y. Im and J. I. Ryu, "A Study on the Application Characteristics of Ultrasonically Irradiated Bio-diesel Fuel in Common-rail Direct Injection Diesel Engine," Transactions of KSAE, Vol.14, No.1, pp.109-114, 2006.
  12. B. O. Lee, Y. S. Lee and J. I. Ryu, "Effects of the Uitrasonic Energy on Smoke Reduction of Diesel Engine," Fall Conference Proceedings, pp.222-227, 2003.
  13. Y. S. Song, The Characteristics of Performance and Exhaust in Diesel Engine of the Ultrasonic Irradiation Bio-diesel Blended Fuel, Ph. D. Dissertation, Chungnam University, Daejeon, Korea, 2004.
  14. D. S. Choi, Study on the Atomization Characteristics and the Engine Performance Characteristics of the Ultrasonic Energy Added Diesel Fuel, Ph. D. Dissertation, Chungnam University, Daejeon, Korea, 1996.