Improvement of Environmental Aspects of Thermal Power Plant ...
Improvement of Environmental Aspects of Thermal Power Plant ...
Improvement of Environmental Aspects of Thermal Power Plant ...
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Total air flow [Nm 3 /h]<br />
Figure 7. Calculated approximations <strong>of</strong> total air flow in dependence <strong>of</strong> unit load and O2 content in flue<br />
gasses<br />
1200<br />
4.2<br />
4.45<br />
Fig. 8 presents dependence <strong>of</strong> secondary air flow (on burner 1) on coal feeder load and total air flow while<br />
Fig. 9 presents dependence <strong>of</strong> secondary air flow on total air flow and hot air temperature. Similar like in<br />
previous case, there is no obvious or linear defined correlation between secondary air flow, coal feeder load<br />
and total air flow.<br />
Secondary air flow [Nm 3 /h]<br />
1600<br />
1500<br />
1400<br />
1300<br />
4.7<br />
4.95<br />
5.2<br />
O2 content in flue gases [%]<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
74<br />
73<br />
72<br />
Coal feeder load [%]<br />
71<br />
5.45<br />
5.7 500<br />
70<br />
1440<br />
Figure 8. Secondary air flow calculations in dependence <strong>of</strong> coal feeder load and total air flow<br />
520<br />
1420<br />
540<br />
1400<br />
560<br />
580<br />
TPP load [MW]<br />
1380<br />
1360<br />
Total air flow [Nm 3 /h]<br />
600<br />
1340<br />
620<br />
1320<br />
1550<br />
1500<br />
1450<br />
1400<br />
1350<br />
1300<br />
1250<br />
70<br />
65<br />
60<br />
55<br />
50<br />
45<br />
40
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