Effect of Initial Diameter on the Soot Generation of Toluene Fuel Droplet

• Journal title : Journal of ILASS-Korea
• Volume 20, Issue 4,  2015, pp.261-267
• Publisher : Institute for Liquid Atomization and Spray Systems-Korea
• DOI : 10.15435/JILASSKR.2015.20.4.261
Title & Authors
Effect of Initial Diameter on the Soot Generation of Toluene Fuel Droplet
Lim, Young Chan; Suh, Hyun Kyu;

Abstract
The main purpose of this study is to provide the information of soot generation of toluene fuel droplet. To achieve this, this paper provides the experimental results on the different initial diameter of toluene droplet combustion characteristics conducted under equivalent ambient pressure ($\small{P_{amb}}$) and oxygen concentration ($\small{O_2}$) conditions. Visualization of single fuel droplet was performed with high resolution CCD camera and visualization system. At the same time, ambient pressure ($\small{P_{amb}}$) and oxygen concentration ($\small{O_2}$) were maintained by ambient condition control system. Soot volume fraction ($\small{f_v}$) was analyzed and compared on the basis of intensity ratio ($\small{I/I_0}$) of background image. The result of soot generation was almost the same regardless of initial droplet diameter since thermophoretic flux is not much changed under the same ambient conditions. Soot standoff ratio (SSR) of 2 mm diameter showed unstable variation characteristics due to the short available measuring time.
Keywords
Droplet combustion;Initial diameter;Single fuel droplet;Soot standoff ratio;Soot volume fraction;
Language
Korean
Cited by
References
1.
J. C. Kim, "Diesel Vehicle Particulate Status", Auto Journal of KSAE, Vol. 34, No. 3, 2012, pp. 59-64.

2.
Y. W. Kim, J. S. Min, "Regulation Trend and Reduction Technology of PM and NOX Emissions for Diesel Vehicles in Japan", Auto Journal of KSAE, Vol. 30, No. 1, 2008, pp. 75-80.

3.
D. H. Kim, J. K. Ha, "The Technology Trend of Particulate Material Reducing System for Diesel Engine", Transactions of KSAE, Vol. 3, 2008, pp. 1428-1435.

4.
S. H. Bae, S. C. Hong, "Simultaneous Removal of Soot and NOX from Diesel Engine Exhaust Gas" Proceeding of KOSAE, 2007, pp. 1772-1776.

5.
C. H. Park, C. M. Park, T. K. Ha, J. H. Kim, B. D. Min, "A Study on Combustion and Emission Characteristics Using Multiple Injection Strategy in a DI Diesel Engine", Transactions of KSAE, 2008, pp. 322-327.

6.
S. S. Moon, "Engine Research Trend in Japan : Diesel NOX After-treatment Technology", Auto Journal of KSAE, Vol. 36, No. 3, 2014, pp. 42-47.

7.
C. K. Law, "Recent Advances in droplet vaporization and combustion", Progress in Energy and Combustion Science, Vol. 8, Issue 3, 1982, pp. 171-201.

8.
C. K. Law, "Unsteady droplet combustion with droplet heating", Combustion and Flame, Vol. 26, 1976, pp. 17-22.

9.
H. K. Suh, "Effect of Ultrasonic Frequency on the Atomization Characteristics of Single Water Droplet in an Acoustic Levitation Field", Journal of ILASSKOREA, Vol. 18, No. 3, 2013, pp. 126-131.

10.
H. K. Suh, "Influence of Initial Diameter on the Combustion Characteristics of n-heptane Droplet", Journal of ILASS-KOREA, Vol. 18, No. 2, 2013, pp. 94-99.

11.
H. K. Suh, "Study on the Combustion Characteristics of Methanol Fuel Droplet", Journal of ILASS-KOREA, Vol. 19, No. 3, 2014, pp. 109-114.

12.
K. O. Lee, C. E. Lee and S. C. Oh, "Measurements of Sooting in Single Droplet Combustion Under the Normal-Gravity Condition", Transactions of the KSME B, Vol. 22, No. 4, 1998, pp. 468-480.

13.
K. K. Song, "A Study on the Evaporation and Ignition of Single Fuel Droplet on the Hot Surface" Journal of the Korean Society of Marine Engineering, Vol. 26, No. 1, 2002, pp. 132-137.

14.
I. C. Jeong, K. H. Lee, "Effect of Ambient Temperature and Droplet Size of a Single Emulsion Droplet on Auto-ignition and Micro-explosion" Transactions of KSAE, Vol. 15, No. 1, 2007, pp. 49-55.

15.
Y. C. Lim, H. K. Suh, "Effect of Ambient Conditions on the Soot Generation of Decane Fuel Droplet" Journal of ILASS-KOREA, Vol. 19, No. 4, 2014, pp. 211-215.

16.
C. J. Dasch, "One-dimensional tomography : a comparison of Abel, onion-peeling, and filtered back projection methods", Applied Optics, Vol. 31, Issue 8, 1992, pp. 1146-1152.

17.
M. Y. Choi, G. W. Mulholland, A. Hamins, T. Kashiwagi, "Comparison of the Soot Volume Fraction Using Gravimetric and Light Extinction Techniques", Combustion and Flame, Vol. 102, Issues 1-2, 1995, pp. 161-169.