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

Chapter 4
P i = 1.0 bar, Ti = 293 K, φ=0.6
Time (ms) 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
Radius (mm) 6.4 7.4 8.5 9.4 10.5 11.5 12.4 13.3 14.2 15.1 15.9
16.0 17.0 18.0 19.0 20.0
16.7 17.6 18.5 19.3 20.1
P i = 1.0 bar, Ti = 293 K, φ=0.8
Time (ms) 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
tel-00623090, version 1 - 13 Sep 2011
Radius (mm) 6.0 7.6 9.2 10.8 12.4 13.9 15.5 17.0 18.4 19.7 21.0
P i = 1.0 bar, T i = 293 K, φ=1.0
Time (ms) 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0
Radius (mm) 6.6 8.7 10.9 13.0 15.0 17.1 19.1 21.0
P i = 1.0 bar, Ti = 293 K, φ=1.2
Time (ms) 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0
Radius (mm) 6.4 8.5 10.4 12.5 14.5 16.6 18.6 20.5
Figure 4.3 - Schlieren images of downdraft syngas-air mixture flames at 1.0 bar.
2.5
1.4
Sn
2.2
P
1.3
Sn (m/s)
1.9
1.6
1.3
1.2
1.1
Pressure (bar)
1.0
0 5 10 15 20 25 30 35
Radius (mm)
1.0
Figure 4.4- Flame speed and pressure versus radius for stoichiometric downdraft syngas-air
mixture at 1.0 bar.
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