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Recent News and Articles on the Keywords: 0.33 + formation + soot  Related to the article below (Last Update: 8/5/2008)


AudiBlog.nl
Q5 in detail
AudiBlog.nl, Netherlands - Jul 8, 2008
Its drag coefficient of just 0.33 also represents a top figure for its category. The Q5?s design is elegant and sculptural - typically for Audi, ...
Source: Google News

Detailed kinetic modeling of soot formation in hydrocarbon pyrolysis behind shock waves
PA Vlasov, J Warnatz - Proceedings of the Combustion Institute, 2002 - Elsevier
... DETAILED KINETIC MODELING OF SOOT FORMATION IN HYDROCARBON PYROLYSIS BEHIND SHOCK
WAVES ... This is the essence of the polyyne path- way of soot formation. ...

Application of Soot Formation Model: Effects of Chlorine -
JT Mckinnon, JB Howard - Combustion Science and Technology, 1990 - informaworld.com
... Application of Soot Formation Model: Effects of Chlorine ... forms the main link between
the effect of chlorine addition on a flame and soot formation rates. ...

Kinetics of soot?O2, soot?NO and soot?O2?NO reactions over spinel-type CuFe2O4 catalyst -
WF Shangguan, Y Teraoka, S Kagawa - Applied Catalysis B, Environmental, 1997 - Elsevier
... The soot-catalyst mixture (0.33 g) was placed in a U-shaped quartz ... oxide was completely
reduced into N, in the soot-NO reaction, while the formation of N ...

… Modeling of Carbon Suboxide Thermal Decomposition and Formation of Soot-Like Particles Behind Shock … -
J Sojka, J Warnatz, PA Vlasov, IS Zaslonko - Combustion Science and Technology, 2000 - informaworld.com
... phase and the formation, growth, transfer, and coagulation of ... clusters, precursors
of solid particles, soot-like solid ... obtained for a mixture of 0.33 % C 302 ...

Laser-induced incandescence study of diesel soot formation in a rapid compression machine at … -
C Crua, DA Kennaird, MR Heikal - Combustion and Flame, 2003 - Elsevier
... Data sets were recorded from the start of soot formation until no soot could be
detected, with a time interval between two sets of 0.33 ms (1 CA). ...

Shock tube studies on the formation of soot from the combustion and pyrolysis of some hydrocarbons
M Evans, A Williams - Fuel, 1981 - Elsevier
... Q3 0.53 3.90 0.33 3.61 Q4 0.52 3.9 0.33 3.5 Q5 0.53 4.1 0.32 4.00 Q6 0.57 4.4 0.28
3.87 Q7 0.53 4.22 0.33 4.69 Q8 ... 2. HGG Wagner, Soot Formation in Combustion. ...

… O perovskite-type oxides and their catalytic property for simultaneous removal of NOx and diesel soot -
Y Teraoka, K Kanada, S Kagawa - Applied Catalysis B, Environmental, 2001 - Elsevier
... A tight mixture (0.33 g) of the catalyst and the soot (ca. ... In the present
study, the formation of CO was never detected in all runs. ...

Pressure effect on soot formation in turbulent diffusion flames -
OV Roditcheva, XS Bai - Chemosphere, 2001 - Elsevier
... Two surface growth constants C ? =0.36 and C ? =0.33 are validated against the ... of
the parent fuel or acetylene in the expressions for the soot formation rates ...

Simultaneous catalytic removal of NO? and diesel soot particulates over ternary AB2O4 spinel-type … -
WF Shangguan, Y Teraoka, S Kagawa - Applied Catalysis B, Environmental, 1996 - Elsevier
... The catalyst/soot mixture (0.33 g) was placed in ... is possible around the onset of
formation curves where the substantial amount of the soot still remains ...

Simultaneous catalytic removal of nitrogen oxides and diesel soot particulate over perovskite- … -
Y Teraoka, K Nakano, W Shangguan, S Kagawa - Catalysis Today, 1996 - Elsevier
... The catalyst/soot mixture (0.33 g) was placed in a quartz-tube reactor and, after ...
The formation of carbon dioxide due to the oxidation of the soot and the ...

Source: Google Scholar

Cleaner diesels thanks to laser light

 

Measuring soot formation in a diesel engine is far from easy. Due to the turbulent environment in the combustion cylinder, no two combustion cycles are the same. Furthermore, the measurements are difficult to reproduce as the pressure at which fuel is injected into the cylinder causes an extra source of turbulence. Bougie made his measurements in a glass cylinder with an engine adapted for this purpose.

Laser Induced Incandescence (LII) can be used to investigate optimal engine conditions that reduce soot emission from the engine. LII can be deployed in different types of engines and with different fuels. Bougie carried out measurements during higher and lower loading of the engine and for two different fuel injection systems: a line pump system and a common rail system. Neither the engine load nor the injection system was found to affect the primary particle size of the soot emitted. However, there are many other motor settings that can lead to an improvement in the combustion.

The results of the measurements can now be used to verify existing combustion models at Eindhoven University of Technology. Together with the STW users' committee (participants are: DAF, Eindhoven University of Technology, Delft University of Technology, the University of Twente, Cyclone Fluid dynamics, EP Controls BV, Paul Scherrer Institute (Villigen, Switzerland), Royal Netherlands Naval College, TNO and Shell), Eindhoven University of Technology will investigate further improvements to the measuring system with the ultimate objective of producing cleaner diesel engines.

###

Bougie's doctoral research was part of a programme of the Institute for Molecules and Material (IMM) of the Radboud University Nijmegen and was performed in cooperation with the Paul Scherrer Institute in Switzerland.

A film about the diesel lab, featuring Bas Bougie and his supervisor Hans ter Meulen:
http://videotheek.surfnet.nl/play_proxy/mmc/35478/diesellab.wmv

Bas Bougie’s research was funded by Technology Foundation STW.

 

 

 

 
 
 
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