Etude de la combustion de gaz de synthèse issus d'un processus de ...

Chapter 4
variation of the normalized burning velocity of updraft syngas with the Karlovitz number
is linear. From Fig. 4.21 one can see that the variation of the normalized burning
velocity of downdraft syngas with the Karlovitz number is generally linear and quasilinear
for φ=0.8. From Fig. 4.22 one can see that the variation of the normalized
burning velocity of fluidized bed syngas with the Karlovitz number is linear for φ=0.8
and quasi-linear for φ =1.0.
2.0
Su/S 0 u
1.8
1.6
1.4
φ
1.2
1.0
0.8
0.6
1.2
tel-00623090, version 1 - 13 Sep 2011
1.0
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
Karlovitz Number
Figure 4.20 – Evolution of the laminar burning velocity versus Karlovitz number for updraft
syngas-air mixture at different equivalence ratios and 1.0 bar.
Su/S 0 u
1.4
1.3
1.2
1.1
φ
1.2
1.0
0.8
0.6
1.0
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
Karlovitz Number
Figure 4.21 – Evolution of the laminar burning velocity versus Karlovitz number for downdraft
syngas-air mixture at different equivalence ratios and 1.0 bar.
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