2003•한국자동차공학회 춘 추계 학술대회 논문집Requires access
Diesel 과 DME 연료의 거시적 분무특성
왕문무, 하종석, 노수영
Open publisher page 0 citations
Abstract
DME is known as an excellent alternative fuel that provides low particulate matter(PM) than diesel fuel under same engine operating conditions. Spray characteristics of Diesel and DME fuel in common rail injection system were investigated within the high pressure chamber by using the particle motion analysis system. The injector used in this study have single hole with the different orifice diameter of 0.2, 0.3 and O.4mm. The injection pressure was
fixed at 35MPa and the ambient pressure were varied from 0.6 to 1.5MPa Macroscopic spray characteristics such as spray angle and spray penetration were measured.
Same trends is obtained both Diesel and DME fuel for spray angle and spray penetration at all used orifice diameter. As ambient pressure is increased, spray angle is increase but spray penetration is decreased. Spray angle was measured at 30d_0 downstream of the nozzle tip for DME ,and 60d_0 downstream of the nozzle tip for Diesel fuel.