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주은선(E. S. Ju),정석용(S. Y. Jeong),강대운(D. W. Kang),김종천(J. C. Kim) 한국자동차공학회 1997 한국 자동차공학회논문집 Vol.5 No.1
An experiment was conducted to figure out the atomization characteristics of a highly viscous biodiesel fuel with rice-bran oil applying and ultrasonic energy into it. A spray simulator for the droplet atomization, an ultrasonic system, and six different nozzels(3 pintle-type nozzles and 3 sin-gle hole-type nozzles) were made. To investigate effects of ultrasonic energy in a highly viscous liquid fuel, an immersion liquid method was used as a measurement method on droplet size distributions.<br/> It was found that the ultrasonic energy was effective .for the atomization improvement of the rice-bran oil as a highly viscous biodiesel fuel and the factors, such as the nozzle opening pressure, pin-edge angles, hole diameters, and collection distances affected the atomization of spray droplets.<br/>