Flame Structure and Combustion Characteristics in Diesel Combustion Fueled with Bio-diesel

2004 ◽  
Author(s):  
Jiro Senda ◽  
Nobunori Okui ◽  
Teppei Suzuki ◽  
Hajime Fujimoto
Keyword(s):  
Flame Structure ◽  
Combustion Characteristics ◽  
Diesel Combustion

Analysis of Mixture Formation and Flame Development of Diesel Combustion Using a Rapid Compression Machine and Optical Visualization Technique

2013 ◽  
Vol 315 ◽  
pp. 293-298 ◽  
Author(s):  
Amir Khalid ◽  
Bukhari Manshoor
Keyword(s):  
Fuel Injection ◽  
Injection Pressure ◽  
Exhaust Emissions ◽  
Combustion Characteristics ◽  
Diesel Combustion ◽  
Rapid Compression Machine ◽  
Mixture Formation ◽  
Optical Visualization ◽  
Flame Development ◽  
Rapid Compression

Mixture formation plays as a key element on burning process that strongly affects the exhaust emissions such as nitrogen oxide (NOx) and Particulate Matter (PM). The reductions of emissions can be achieved with improvement throughout the mixing of fuel and air behavior. Measurements were made in an optically-accessible rapid compression machine (RCM) with intended to simulate the actual diesel combustion related phenomena. The diesel combustion was simulated with the RCM which is equipped with the Denso single-shot common-rail fuel injection system, capable of a maximum injection pressure up to 160MPa. Diesel engine compression process could be reproduced within the wide range of ambient temperature, ambient density, swirl velocity, equivalence ratio and fuel injection pressure. The mixture formation and combustion images were captured by the high speed camera. Analysis of combustion characteristics and observations of optical visualization of images reveal that the mixture formation exhibit influences to the ignition process and flame development. Therefore, the examination of the first stage of mixture formation is very important consideration due to the fuel-air premixing process linked with the combustion characteristics. Furthermore, the observation of a systematic control of mixture formation with experimental apparatus enables us to achieve considerable improvements of combustion process and would present the information for fundamental understanding in terms of reduced fuel consumption and exhaust emissions.

Effect of High Levels of Boost and Recirculated Exhaust Gas on Diesel Combustion Characteristics at Part Load

2014 ◽  
Author(s):  
Venkatesh Gopalakrishnan ◽  
Alberto Vassallo ◽  
Richard C. Peterson ◽  
Joaquin De la Morena
Keyword(s):  
Combustion Characteristics ◽  
Exhaust Gas ◽  
Diesel Combustion ◽  
Part Load

Diesel Combustion Characteristics of Biodiesel with 1-Butanol

2011 ◽  
Author(s):  
Eiji Kinoshita ◽  
Kazunori Hamasaki ◽  
Ryota Imabayashi
Keyword(s):  
Combustion Characteristics ◽  
Diesel Combustion

D21 Diesel Combustion Characteristics of Rapeseed Oil Butyl Ester

2011 ◽  
Vol 2011 (0) ◽  
pp. 107-108
Author(s):  
Takashi IDENO ◽  
Akio KAMEDA ◽  
Eiji KINOSHITA ◽  
Yasufumi YOSHIMOTO
Keyword(s):  
Rapeseed Oil ◽  
Butyl Ester ◽  
Combustion Characteristics ◽  
Diesel Combustion

660 A Study on Combustion Characteristics and Flame Structure in a Multiple Port Burner

2011 ◽  
Vol 2011.60 (0) ◽  
pp. _660-1_-_660-2_
Author(s):  
Shang Hai ◽  
Hiromu SUZUKI ◽  
Kazuhiro YAMAMOTO
Keyword(s):  
Flame Structure ◽  
Combustion Characteristics

Predicting diesel combustion characteristics with Large-Eddy Simulations including tabulated chemical kinetics

2013 ◽  
Vol 34 (2) ◽  
pp. 3067-3074 ◽  
Author(s):  
C. Bekdemir ◽  
L.M.T. Somers ◽  
L.P.H. de Goey ◽  
J. Tillou ◽  
C. Angelberger
Keyword(s):  
Chemical Kinetics ◽  
Combustion Characteristics ◽  
Large Eddy Simulations ◽  
Diesel Combustion ◽  
Large Eddy

scholarly journals Diesel Combustion Characteristics of Palm Oil Ethyl Ester

2004 ◽  
Vol 2004.57 (0) ◽  
pp. 169-170
Author(s):  
Eiji KINOSHITA ◽  
Joji SAWAOKA ◽  
Kazunori HAMASAKI ◽  
Daisuke MAWATARI
Keyword(s):  
Ethyl Ester ◽  
Palm Oil ◽  
Combustion Characteristics ◽  
Diesel Combustion

scholarly journals Modeling diesel combustion with tabulated kinetics and different flame structure assumptions based on flamelet approach

2019 ◽  
Vol 21 (1) ◽  
pp. 89-100 ◽  
Author(s):  
Tommaso Lucchini ◽  
Daniel Pontoni ◽  
Gianluca D’Errico ◽  
Bart Somers
Keyword(s):  
Soot Formation ◽  
Flame Structure ◽  
Combustion Process ◽  
Computational Cost ◽  
Pollutant Emissions ◽  
Diesel Combustion ◽  
Flamelet Generated Manifold ◽  
Tabulated Chemistry ◽  
Computational Fluid Dynamics Analysis ◽  
The Impact

Computational fluid dynamics analysis represents a useful approach to design and develop new engine concepts and investigate advanced combustion modes. Large chemical mechanisms are required for a correct description of the combustion process, especially for the prediction of pollutant emissions. Tabulated chemistry models allow to reduce significantly the computational cost, maintaining a good accuracy. In the present work, an investigation of tabulated approaches, based on flamelet assumptions, is carried out to simulate turbulent Diesel combustion in the Spray A framework. The Approximated Diffusion Flamelet is tested under different ambient conditions and compared with Flamelet Generated Manifold, and both models are validated with Engine Combustion Network experimental data. Flame structure, combustion process and soot formation were analyzed in this work. Computed results confirm the impact of the turbulent–chemistry interaction on the ignition event. Therefore, a new look-up table concept Five-Dimensional-Flamelet Generated Manifold, that accounts for an additional dimension (strain rate), has been developed and tested, giving promising results.

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