Abstract
Experimental measurements of scalar quantities in laminar counter-flow diffusion flames of mixtures of trichloroethylene (TCE) with methane have been compared with an equilibrium calculation. The data are correlated in terms of a mixture fraction. Data for stable major and minor species were obtained by using gas sampling with gas chromatography (GC) and a GC/mass spectrometer in flames with high (248 s-1) and low (175 s-l) strain rates. Calculations indicated that TCE mass fractions at equilibrium were very small, even at a relatively low temperature (600 K). However, the GC measurements showed that TCE persisted well into the flame. Strain rate was found to have a small but measurable effect on the correlation of species mass fractions and temperature with mixture fraction. The comparison of equilibrium predictions with measurements in mixture fraction space suggests that finite rate chemistry and chemical kinetics should be considered in the modeling of chlorinated hydrocarbon turbulent diffusion flames. This conclusion also applies to products of incomplete combustion such as the chlorinated polyaromatic hydrocarbons. A laminar flamelet model for turbulent diffusion flames of chlorinated hydrocarbons should yield significantly better results than an equilibrium model of the thermochemistry.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 349-359 |
| Number of pages | 11 |
| Journal | Combustion Science and Technology |
| Volume | 101 |
| Issue number | 1-6 |
| DOIs | |
| State | Published - Nov 1 1994 |
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Keywords
- Chlorinated hydrocarbon
- incineration
- laminar diffusion flame
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Energy Engineering and Power Technology
- Fuel Technology
- Physics and Astronomy(all)
Cite this
The Non-Equilibrium Structure of a Trichloro-ethene Methane Laminar Diffusion Flame. / Yang, Gosu; Kennedy, Ian M.
In: Combustion Science and Technology, Vol. 101, No. 1-6, 01.11.1994, p. 349-359.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The Non-Equilibrium Structure of a Trichloro-ethene Methane Laminar Diffusion Flame
AU - Yang, Gosu
AU - Kennedy, Ian M.
PY - 1994/11/1
Y1 - 1994/11/1
N2 - Experimental measurements of scalar quantities in laminar counter-flow diffusion flames of mixtures of trichloroethylene (TCE) with methane have been compared with an equilibrium calculation. The data are correlated in terms of a mixture fraction. Data for stable major and minor species were obtained by using gas sampling with gas chromatography (GC) and a GC/mass spectrometer in flames with high (248 s-1) and low (175 s-l) strain rates. Calculations indicated that TCE mass fractions at equilibrium were very small, even at a relatively low temperature (600 K). However, the GC measurements showed that TCE persisted well into the flame. Strain rate was found to have a small but measurable effect on the correlation of species mass fractions and temperature with mixture fraction. The comparison of equilibrium predictions with measurements in mixture fraction space suggests that finite rate chemistry and chemical kinetics should be considered in the modeling of chlorinated hydrocarbon turbulent diffusion flames. This conclusion also applies to products of incomplete combustion such as the chlorinated polyaromatic hydrocarbons. A laminar flamelet model for turbulent diffusion flames of chlorinated hydrocarbons should yield significantly better results than an equilibrium model of the thermochemistry.
AB - Experimental measurements of scalar quantities in laminar counter-flow diffusion flames of mixtures of trichloroethylene (TCE) with methane have been compared with an equilibrium calculation. The data are correlated in terms of a mixture fraction. Data for stable major and minor species were obtained by using gas sampling with gas chromatography (GC) and a GC/mass spectrometer in flames with high (248 s-1) and low (175 s-l) strain rates. Calculations indicated that TCE mass fractions at equilibrium were very small, even at a relatively low temperature (600 K). However, the GC measurements showed that TCE persisted well into the flame. Strain rate was found to have a small but measurable effect on the correlation of species mass fractions and temperature with mixture fraction. The comparison of equilibrium predictions with measurements in mixture fraction space suggests that finite rate chemistry and chemical kinetics should be considered in the modeling of chlorinated hydrocarbon turbulent diffusion flames. This conclusion also applies to products of incomplete combustion such as the chlorinated polyaromatic hydrocarbons. A laminar flamelet model for turbulent diffusion flames of chlorinated hydrocarbons should yield significantly better results than an equilibrium model of the thermochemistry.
KW - Chlorinated hydrocarbon
KW - incineration
KW - laminar diffusion flame
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U2 - 10.1080/00102209408951882
DO - 10.1080/00102209408951882
M3 - Article
AN - SCOPUS:84951393651
VL - 101
SP - 349
EP - 359
JO - Combustion Science and Technology
JF - Combustion Science and Technology
SN - 0010-2202
IS - 1-6
ER -