Investigation of soot formation in a D.I. diesel engine by using laser induced scattering and laser induced incandescence |
| |
Authors: | Email author" target="_blank">Ki?Hyung?LeeEmail author Jae?Woo?Chung Byung?Soo?Kim Sang?Kwon?Kim |
| |
Affiliation: | (1) Department of Mechanical Engineering, Hanyang University, 1271 SaDong, Sangrok-Gu, Ansan-si, 426-791 Gyunggi-Do, Korea;(2) Korea Automotive Technology Institute, 74 Yongjung-Ri, Pungse-Myun, Chonan, 330-912 Chungnam, Korea;(3) Hyundai Motor Company, 772-1, Jangduk-Dong, Whasung-si, 445-706 Gyunggi-Do, Korea |
| |
Abstract: | Soot has a great effect on the formation of PM (Paniculate Matter) in D.I. (Direct Injection) Diesel engines. Soot in diesel
flame is formed by incomplete combustion when the fuel atomization and mixture formation were poor. Therefore, the understanding
of soot formation in a D.I. diesel engine is mandatory to reduce PM in exhaust gas. To investigate soot formation in diesel
combustion, various measurements have been performed with laser diagnostics. In this study, the relative soot diameter and
the relative number density in a D.I. engine was measured by using LIS (Laser Induced Scattering) and LII (Laser Induced Incandescence)
methods simultaneously which are planar imaging techniques. And a visualization D.I. diesel engine was used to introduce a
laser beam into the combustion chamber and investigate the diffusion flame characteristics. To find the optimal condition
that reduces soot formation in diesel combustion, various injection timing and the swirl flow in the cylinder using the SCV
(Swirl Control Valve) were applied. From this experiment, the effects of injection timing and swirl on soot formation were
established. Effective reduction of soot formation is possible through the control of these two factors. |
| |
Keywords: | Spray LII (Laser Induced Incandescence) LIS (Laser Induced Scattering) D I Diesel Engine Swirl Soot Distribution Visualization |
本文献已被 SpringerLink 等数据库收录! |
|