Browse > Article

Analysis of Transient Diesel Spray with Visualization and Injection Rate Measurement  

Kang, Jin-Suk (Departmetn of Mechanical Engineering, KAIST)
Choi, Wook (Powertrain Research Center, Hyundai-Motor Company)
Bae, Choong-Sik (Powertrain Research Center, Hyundai-Motor Company)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.5, 2004 , pp. 12-18 More about this Journal
Abstract
Transient natures of diesel sprays are often characterized with spray visualization, since it is a non-intrusive and straightforward technique to be applied. However, as injection pressure is increased higher than a thousand bar in a modern direct injection diesel engine, very fine temporal and spatial resolutions in the spray visualization are required while sprays become optically denser. Discussed in this paper are macroscopic and microscopic spray visualization techniques and an example of image processing process for efficient and consistent measurement of spray parameters. The injection rate measurement method based on hydraulic pulse principle was suggested as a way of estimating injection velocity for transient diesel sprays. The spray visualization and injection rate measurement techniques were applied to analyze transient diesel sprays from a common-rail injection system and found to be practically effective.
Keywords
Transient diesel spray; Injection rate; Spray visualization; Exposure time; Image processing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Non-intrusive Measurement of the Structure of Dense Spray /
[ G. A. Ruff;G. M. Faeth ] / Progress in Astronautics and Aeronautics
2 Investigation of Primary Diesel Breakup Close to the Nozzle of a Common Rail High Pressue Injection System /
[ C. Heimgartner;A. Leiperz ] / Proc. 8th ICLASS
3 Diesel Spray Development from VCO Nozzle with Common-Rail /
[ C. Bae;J. Kang;H. Lee ] / Proc. Fall Technical Conference of ICE Division of ASME
4 Drop Sizing and Depth-of-Field Correlation in TV Imaging /
[ K. S. Kim;S. S. Kim ] / Atomization and Sprays
5 Determination of In-Focus Criteria and Depth of Fields in Image Processing of Spray Particle /
[ K. U. Koh;J. Y. Kim;S. Y. Lee ] / Atomization and Sprays
6 Basis for the Comparison of Various Experimental Method for Studying Spray Penetration /
[ J. C. Dent ] / SAE 71057
7 Structure of Fuel Sprays in Diesel Engines /
[ H. Hiroyasu;M. Arai ] / SAE 900475
8 Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays /
[ J. D. Naber;D. L. Siebers ] / SAE 960034
9 /
[ L. Bayvel;Orzechowski ] / Liquid Atomization
10 The Fuel Rate Indicator: A New Measuring Instrument For Display of the Characteristics of Individual Injection /
[ W. Bosch ] / SAE 660749
11 Diesel Spray Development from VCO Nozzles for High Pressure Direct-Injection /
[ J. Kang;C. Bae ] / Transactions of KSAE