Soot Diagnostics Using Laser-Induced Incandescence within an Optically Accessible HSDI Diesel Engine

2004 ◽  
Author(s):  
William S. Mathews ◽  
Tiegang Fang ◽  
Robert E. Coverdill ◽  
Chia-fon F. Lee ◽  
Robert A. White
Keyword(s):  
Diesel Engine ◽  
Laser Induced Incandescence ◽  
Hsdi Diesel Engine

CFD Modelling of the Effects of Injection Timing on the Combustion Process and Emissions in an HSDI Diesel Engine

2012 ◽  
Author(s):  
Raouf Mobasheri ◽  
Zhijun Peng
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Cfd Simulation ◽  
Direct Injection ◽  
Combustion Process ◽  
Injection Timing ◽  
Cfd Modelling ◽  
Combustion Modeling ◽  
Pressure Trace ◽  
Hsdi Diesel Engine

High-Speed Direct Injection (HSDI) diesel engines are increasingly used in automotive applications due to superior fuel economy. An advanced CFD simulation has been carried out to analyze the effect of injection timing on combustion process and emission characteristics in a four valves 2.0L Ford diesel engine. The calculation was performed from intake valve closing (IVC) to exhaust valve opening (EVO) at constant speed of 1600 rpm. Since the work was concentrated on the spray injection, mixture formation and combustion process, only a 60° sector mesh was employed for the calculations. For combustion modeling, an improved version of the Coherent Flame Model (ECFM-3Z) has been applied accompanied with advanced models for emission modeling. The results of simulation were compared against experimental data. Good agreement of calculated and measured in-cylinder pressure trace and pollutant formation trends were observed for all investigated operating points. In addition, the results showed that the current CFD model can be applied as a beneficial tool for analyzing the parameters of the diesel combustion under HSDI operating condition.

In-Situ Real-Time Characterization of Particulate Emissions from a Diesel Engine Exhaust by Laser-Induced Incandescence

2000 ◽  
Author(s):  
David R. Snelling ◽  
Gregory J. Smallwood ◽  
Robert A. Sawchuk ◽  
W. Stuart Neill ◽  
Daniel Gareau ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Real Time ◽  
Particulate Emissions ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Laser Induced Incandescence

Impact of post-injection strategies on combustion and unregulated emissions during different loads in an HSDI diesel engine

Fuel ◽  
2020 ◽  
Vol 267 ◽  
pp. 117256 ◽  
Author(s):  
Sheikh Muhammad Farhan ◽  
Wang Pan ◽  
Wu Yan ◽  
Yi Jing ◽  
Lei Lili
Keyword(s):  
Diesel Engine ◽  
Post Injection ◽  
Hsdi Diesel Engine ◽  
Unregulated Emissions ◽  
Injection Strategies
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