Comparative study of the soot formation process in a “nucleation” and a “sooting” low pressure premixed methane flame

2017 ◽  
Vol 184 ◽  
pp. 153-166 ◽  
Author(s):  
Pascale Desgroux ◽  
Alessandro Faccinetto ◽  
Xavier Mercier ◽  
Thomas Mouton ◽  
Damien Aubagnac Karkar ◽  
...  
Keyword(s):  
Comparative Study ◽  
Formation Process ◽  
Soot Formation ◽  
Low Pressure ◽  
Methane Flame

Modeling the Hg-Ar low-pressure-discharge positive column: A comparative study

1992 ◽  
Vol 45 (2) ◽  
pp. 1135-1148 ◽  
Author(s):  
G. Zissis ◽  
P. Bénétruy ◽  
I. Bernat
Keyword(s):  
Comparative Study ◽  
Positive Column ◽  
Low Pressure ◽  
Pressure Discharge

scholarly journals The comparative study between Indonesian blend words and English blend words

LingTera ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 1-7
Author(s):  
Mia Rahmannia ◽  
Pratomo Widodo
Keyword(s):  
Comparative Study ◽  
Formation Process ◽  
Qualitative Method ◽  
Word Formation ◽  
Journal Articles ◽  
Similarities And Differences ◽  
The Difference ◽  
The Comparative Study ◽  
Descriptive Qualitative

Generally, blending can be defined as combining two clipped words. Kvetko in Bednarova defines blending as a word formation process similar to shortening combined with merging two different words. There are many types of blending words both in Indonesian and English context. Therefore, the aim of this research is to analyze the comparison between Indonesian blend words and English blend words in terms of its types, its similarities and differences and also how its formed. In this paper the researcher use descriptive qualitative method as the method of the research. The source of the data is taken from some journal articles that relevant with blend words both in Indonesian and English context. The result showed that Indonesian blend words and English blend words not only have similarities in the forming word, but also have their differences that make them unique to each other. The writer hopes that the reader of this article gets more information about both Indonesian and English blend words based on its types and the similarities and the difference between them.

scholarly journals Dimers of polycyclic aromatic hydrocarbons: the missing pieces in the soot formation process

2019 ◽  
Vol 21 (16) ◽  
pp. 8282-8294 ◽  
Author(s):  
X. Mercier ◽  
O. Carrivain ◽  
C. Irimiea ◽  
A. Faccinetto ◽  
E. Therssen
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Experimental Evidence ◽  
Aromatic Hydrocarbons ◽  
Diffusion Flame ◽  
Formation Process ◽  
Soot Formation ◽  
Laminar Diffusion Flame ◽  
Laminar Diffusion ◽  
Polycyclic Aromatic

Experimental evidence supporting the existence of PAH dimers in the proximity of the soot nucleation region of a methane laminar diffusion flame.

Investigation of the Early Soot Formation Process in a Transient Spray Flame Via Spectral Measurements of Laser-Induced Emissions

2006 ◽  
Vol 7 (2) ◽  
pp. 93-101 ◽  
Author(s):  
T Aizawa ◽  
H Kosaka
Keyword(s):  
Formation Process ◽  
Soot Formation ◽  
Yttrium Aluminium Garnet ◽  
Two Dimensional ◽  
Spectral Measurements ◽  
Cross Sectional ◽  
Soot Particles ◽  
Nozzle Orifice ◽  
Spray Flame ◽  
Soot Precursors

In order to investigate the early soot formation process in a diesel spray flame, two-dimensional imaging and spectral measurements of laser-induced emission from soot precursors and soot particles in a transient spray flame achieved in a rapid compression machine (2.8 MPa, 710 K) were conducted. The 3rd harmonic (355 nm) and 4th harmonic (266 nm) Nd: YAG (neodymium-doped yttrium aluminium garnet) laser pulses were used as the light source for laser-induced fluorescence (LIF) from soot precursors and laser-induced incandescence (LII) from soot particles in the spray flame. The two-dimensional imaging covered an area between 30 and 55 mm downstream from the nozzle orifice. The results of two-dimensional imaging showed that strong laser-induced emission excited at 266 nm appears only on the laser incident side of the spray flame, in contrast to an entire cross-sectional distribution of the emission excited at 355 nm, indicating that 266 nm-excited emitters are stronger absorbers and more abundant than 355 nm-excited emitters in the spray flame. The spectral measurements were conducted at three different positions, 35, 45, and 55 mm downstream from the nozzle orifice, along the central axis of the spray, where LIF from soot precursors was observed in a previous two-dimensional imaging study. The spectra measured in upstream positions showed that broad emission peaked at around 400–500 nm, which is attributable to LIF from polycyclic aromatic hydrocarbons (PAHs). The spectra measured in downstream positions appeared very much like grey-body emission from soot particles.

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