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

Chapter 4
1.50
Sn (m/s)
1.25
1.00
0.75
0.50
0.25
0.00
3.0
2.5
φ =0.6
Updraft
Dow ndraft
0 50 100 150 200 250 300 350
κ (s -1 )
φ =0.8
2.0
tel-00623090, version 1 - 13 Sep 2011
Sn (m/s)
Sn (m/s)
1.5
1.0
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
Updraft
Downdraft
Fluidized
0 100 200 300 400 500 600
κ (s -1 )
φ =1.0
Updraft
Downdraft
Fluidized
0.0
0 100 200 300 400 500 600 700
κ (s -1 )
3.0
2.5
φ =1.2
2.0
Sn (m/s)
1.5
1.0
0.5
Updraft
Downdraft
0.0
0 100 200 300 400 500 600 700
κ (s -1 )
Figure 4.17 - Stretched flame speed versus stretch rate for syngas-air mixtures at various
equivalence ratios and 1.0 bar.
103