Browse > Article

Combustion Characteristics of Single Droplet of Diesel with Bio-diesel for Their Mixing Ratios and Sizes  

Jeong, Man-Seok (Graduate School, Sunchon National University)
Lee, Kyung-Hwan (School of Mechanical and Aerospace Engineering, Sunchon National University)
Publication Information
Journal of Energy Engineering / v.18, no.2, 2009 , pp. 101-107 More about this Journal
Abstract
The combustion characteristics of a single droplet of diesel and bio-diesel have been investigated experimentally with varying droplet size, ambient temperature and compound ratio in a high temperature chamber. The fuels used were diesel with bio-diesel contents varied from 0% to 100%. Each experiment has been performed from 970K to 1070K by 50K intervals. Imaging with a high-speed digital camera was adopted to measure the ignition delay and flame life-time, as well as to observe micro-explosion behavior. The increase of droplet size and decrease of furnace temperature cause an increase of the ignition delay time. As the bio-diesel content decreases, the ignition delay increases and the micro-explosion behavior is strengthened. It is also confirmed that the full combustion time decreases as the micro-explosion occurred.
Keywords
Diesel droplet; Bio-diesel; Diesel; Micro-explosion; Ignition delay;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 T. Tsukamoto and T. Niioka, "Dynamics of Heterogenous Combustion and Reacting System." Progress in Aeronautics and Astonautics, AIAA, Vol.152, p263. 1993
2 C. K. Law, C. H. Lee and N. Spinivasan, "Combustion Characteristics of Water-in-Oil Emulsion in Diesel Engines," Combustion Science and Technology, Vol.18, No.5, p.217-221, 1978   DOI   ScienceOn
3 R. Nakanishi, H. Kobayashi, S. Kato and T. Niioka, "Ignition Experiment of a Fuel Droplet in High-Pressure High Temperature Ambient," 25th Symp.(Int.) on Comb., The Combustion Institute, p.447, 1994
4 정인철, 이경환, 2007, 단일유화액적의 분위기 온도와 액적크기에 따른 자발화와 미소폭발에 대한 영향, 한국자동차공학회 논문집, 제15권 제1호, pp. 49-55
5 임재근, 최순열, 2008, 직접분사식 디젤기관에서 연료소비율 및 배기 배출물 특성에 미치는 바이오디젤유의 영향, 해양환경안전학회 제14권, 제1호, p83-87
6 I. C. Jeong and K. H. Lee, "Auto-ignition and Microexplosion Behaviors of Droplet Arrays of Water-in-fuel Emulsion", International Journal of Automotive Technology, Vol. 9, No. 6, p.735-740   DOI   ScienceOn