This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Fuel Properties on Diesel Spray Behavior under High Temperature and High Pressure Conditions
Technical Paper
2009-01-0834
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In order to clarify the state of spray and mixture formation in a diesel engine cylinder, the formation technique of high temperature and high pressure conditions in a constant-volume chamber was developed. This technique reproduces actual cylinder conditions (for example, 5MPa and 873K at TDC in NA engines with a compression ratio of 16) by filling ambience formation mixture into the chamber and pre-igniting the mixture. LIEF (Laser Induced Exciplex Fluorescence) technique was applied to the analysis of vapor-liquid separation as the measurement of spray. However, the light emission from various aromatic compounds by laser irradiation makes it difficult to apply the technique to the evaluation of the actual fuel. Therefore the preparation technique of the fuel for this LIEF technique was developed to have a mixture formation state on fuel properties. Focusing on kinematic viscosity and distillation characteristics, several types of alkanes were blended to approximate the liquid penetration of diesel fuel spray under high temperature and high pressure conditions. Those techniques were used to produce the evaporation characteristics of diesel fuel spray in using light fuel. Then the effect of the early injection of actual fuel on combustion was analyzed. As the result, with the light fuel, as for spray characteristics, liquid and vapor penetrations shorten, spray angle widens, and as for vapor concentration distribution, dense mixture with equivalent ratio above 2 reduces. As for combustion, the visible cylinder inside proved that smoke and bright flames reduce with the light fuel.
Recommended Content
Authors
Topic
Citation
Matsuoka, H., Yamashita, H., Hayashi, T., and Kitano, K., "Effects of Fuel Properties on Diesel Spray Behavior under High Temperature and High Pressure Conditions," SAE Technical Paper 2009-01-0834, 2009, https://doi.org/10.4271/2009-01-0834.Also In
References
- Dan Tomohisa Takagishi Sayo Ohishi Naoki Senda Jiro Fujimoto Hajime Effect of Ambient Gas Properties for Characteristics of Nonreacting Diesel Fuel Spray SAE World Congress 970352 1997
- Kim T. Ghandhi J.B. Quantitative 2-D Fuel Vapor of Concentration Measurement in an Evaporating Diesel Spray using the Exciplex Fluorescence Method SAE World Congress 2001-01-3495 2001
- Uhl Marc Schiessl Robert Maas Ulrich Dreizler Andreas Time Resolved Spray Characterization in a Common Rail Direct-Injection Production Type Diesel Engine Using Combined Mie/LIF Laser Diagnostics SAE World Congress 2001-01-1040 2003
- Choi Dae Iwamuro Makoto Shima Yuta Senda Jiro Fujimoto Hajime The Effect of Fuel-Vapor Concentration on the process of Initial Combustion and Soot Formation in a DI Diesel Engine using LII and LIEF SAE World Congress 2001-01-3495 2001
- Abraham J. Magi V. A Model for Multi component Droplet Vaporization in Sprays SAE World Congress 980511 1998
- Kawano Daisuke Senda Jiro Kawakami Kazuya Shimada Atsushi Fujimoto Hajime Fuel Design Concept for Low Emission in Engine System 2 nd Report Analysis of Combustion Characteristics for Mixed Fuels SAE World Congress 2002-01-0220 2002
- Myong Kwangiae Arai Motoyuki Suzuki Hirotaka Senda Jiro Fujimoto Hajime Vaporization Characteristics and Liquid-Phase Penetration for Multi-Component Fuels SAE World Congress 2004-01-0529 2004
- Yamashita Hayato Suzuki Takashi Matsuoka Hiroshi Mashida Makoto Kitano Koji Research of the DI Diesel Spray Characteristics at High Temperature and High Pressure Ambient SAE World Congress 2007-01-0665 2007