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Kraftwerksautomatisierung – Kessel<br />
Bespiel Verbrennungsoptimierung<br />
Manipulated variables<br />
• Air dampers at every burner<br />
• Overfire air dampers<br />
• Total air flow<br />
• F primary air<br />
• F secondary air<br />
• Flue g<strong>as</strong> recirculation<br />
• feeder / fuel oil flow<br />
Process-/disturbance variables<br />
• Coal / fuel oil quality<br />
• Mill / burner wear<br />
• Boiler cleanliness<br />
• Ambient conditions<br />
Boiler<br />
Controlled<br />
variables<br />
• Flue G<strong>as</strong> Boiler Exit<br />
• O 2 concentration<br />
• Exhaust G<strong>as</strong> temperature<br />
• NO x concentration<br />
• CO concentration<br />
• Carbon in Ash
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