Laser diagnostics of nanometric soot particles from diesel engines

2002 ◽  
Author(s):  
V. Boutou ◽  
C. Favre ◽  
A. Thomasson ◽  
R. Botet ◽  
J.P. Boch ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Laser Diagnostics ◽  
Soot Particles

Flow and Combustion in a Transparent 1.9 Litre Direct Injection Diesel Engine

1994 ◽  
Vol 208 (3) ◽  
pp. 191-205 ◽  
Author(s):  
C Arcoumanis ◽  
J H Whitelaw ◽  
W Hentschel ◽  
K-P Schindler
Keyword(s):  
Diesel Engines ◽  
Laser Diagnostics ◽  
Direct Injection ◽  
Computer Code ◽  
Operating Conditions ◽  
Auto Ignition ◽  
Sufficient Detail ◽  
Generating Capacity ◽  
Ignition And Combustion ◽  
Cylinder Flow

Two identical 1.9 litre direct injection (DI) diesel engines having optical access for application of laser diagnostics were operated at Volkswagen and Imperial College as part of the European programme (IDEA) on diesel engines. A variety of complementary laser-based techniques were used to characterize the flow-generating capacity of the intake system under steady flow conditions, the in-cylinder flow during induction and compression as well as the spray development, auto-ignition and combustion under three typical engine operating conditions. The most important results of this programme are presented and discussed here in view of their implications for improved combustion and reduction of exhaust emissions in small direct injection diesel engines, through better matching of the spray characteristics with the in-cylinder flow as a function of engine speed and load. The results were obtained in sufficient detail to allow validation of the multi-dimensional computer code developed within the IDEA programme.

Coagulation and combustion of soot particles in diesel engines

1971 ◽  
Vol 17 (3) ◽  
pp. 409-419 ◽  
Author(s):  
I.M. Khan ◽  
C.H.T. Wang ◽  
B.E. Langridge
Keyword(s):  
Diesel Engines ◽  
Soot Particles

scholarly journals Cytotoxicity and Inflammatory Potential of Soot Particles of Low-Emission Diesel Engines

2008 ◽  
Vol 42 (5) ◽  
pp. 1761-1765 ◽  
Author(s):  
Dang Sheng Su ◽  
Annalucia Serafino ◽  
Jens-Oliver Müller ◽  
Rolf E. Jentoft ◽  
Robert Schlögl ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Soot Particles ◽  
Low Emission

scholarly journals Measurement of Soot Particles in Combustion Chambers of Diesel Engines

1983 ◽  
Vol 18 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Shin-ichi Gotoh ◽  
Jun Hama ◽  
Kazuo Kontani ◽  
Kunio Suzuki
Keyword(s):  
Diesel Engines ◽  
Combustion Chambers ◽  
Soot Particles

scholarly journals Emission of metal-oxide particles from IC-engines

2011 ◽  
Vol 144 (1) ◽  
pp. 72-88
Author(s):  
Andrea ULRICH ◽  
Andreas MAYER ◽  
Markus KASPER ◽  
Adrian WICHSER ◽  
Jan CZERWIŃSKI
Keyword(s):  
Metal Oxide ◽  
Diesel Engines ◽  
Small Mass ◽  
Published Data ◽  
Combustion Engines ◽  
Soot Particles ◽  
Oil Additives ◽  
Si Engines ◽  
Oxide Particles ◽  
20 Nm

All conventional piston-driven combustion engines emit metal oxide particles. The main sources are the abrasion between piston-ring and cylinder, abrasion in the bearings, catalyst coating, lube-oil additives, and fuel additives for promoting the exhaust-gas after-treatment. Metal oxides, especially from transition metals, are very toxic when they are very fine. These particles have a high BET surface and penetrate the biological system. Hence, these particles must be scrutinized for quantity, size distribution and composition. This paper draws from published data and mainly the VERT certification tests, which prescribe a size specific metal analysis. The total mass of metal oxide is 0.1 – 1 mg/km, which appears negligible. But these particles are in the 10 – 20 nm size range. Hence, this small mass represents 1015 particles per kilometer. This is approximately the same number as soot particles emitted by diesel engines. Public health should focus on the metal oxide particles that are smaller and probalby more toxic than the soot particles. SI engines run at higher RPM and therefore emit more metal oxide particles than Diesel engines. Highly efficient filtration of such particles seems therefore necessary for all engine categories

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