Effect of Recirculated Exhaust Gas upon Performance and Exhaust Emissions in Power Plant Boilers with FGR System

1686

F.O. tank Sulfuration 4%

B-C oil

Wind box

G

Deaerator

Boiler feed water pump Turbine

Back pressure impulse type

FGD Boost up fan Stack

FDF EP F.O. pump

F.O. heater

Burner

Economizer

Silencer Combustion air Super heater

Furnace 2 stage Combustion air

Generator 42.6 MW

FGR fan Drum

TMS Flue gas analysis system Boiler

160 t/hr 12.3 MPa

Deaerator feed water pump Deaerator

FGR system

Feed water tank F.O. tank

Sulfuration 4%

B-C oil

Wind box

G

Deaerator

Boiler feed water pump Turbine

Back pressure impulse type

FGD Boost up fan Stack

FDF EP F.O. pump

F.O. heater

Burner

Economizer

Silencer Combustion air Super heater

Furnace 2 stage Combustion air

Generator 42.6 MW

FGR fan Drum

TMS Flue gas analysis system TMS Flue gas analysis system TMS Flue gas analysis system Boiler

160 t/hr 12.3 MPa

Deaerator feed water pump Deaerator

FGR system

Feed water tank

1687

1688

0 5 10 15 0

73 74 75 76 77 78 79

80 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

Fu el co ns um pt io n ra te / Ev ap ol at io n ra te (ℓ /t on )

F G R r a t e ( % ) ^{0 5 10 15}

0 73 74 75 76 77 78 79

80 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

Fu el co ns um pt io n ra te / Ev ap ol at io n ra te (ℓ /t on )

F G R r a t e ( % )

0 5 10 15

0 73 74 75 76 77 78 79

80 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

Fu el co ns um pt io n ra te / Ev ap ol at io n ra te (ℓ /t on )

F G R r a t e ( % ) ^{0 5 10 15}

0 73 74 75 76 77 78 79

80 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

Fu el co ns um pt io n ra te / Ev ap ol at io n ra te (ℓ /t on )

F G R r a t e ( % )

1689

0 5 10 15 0

180 200 220 240 260 280

300 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

NO^x Em is si on s (p pm )

F G R r a t e ( % ) ^{0 5 10 15}

0 180 200 220 240 260 280

300 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

NO^x Em is si on s (p pm )

F G R r a t e ( % )

0 5 10 15

0 180 200 220 240 260 280

300 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

NO^x Em is si on s (p pm )

F G R r a t e ( % ) ^{0 5 10 15}

0 180 200 220 240 260 280

300 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

NO^x Em is si on s (p pm )

F G R r a t e ( % )

1690

0 5 10 15 0

2 4 6 8

10 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

So ot em is si on s (m g / m

3)

F G R r a t e ( % ) ^{0 5 10 15}

0 2 4 6 8

10 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

So ot em is si on s (m g /

3m)

F G R r a t e ( % )

0 5 10 15

0 2 4 6 8

10 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

So ot em is si on s (m g / m

3)

F G R r a t e ( % ) ^{0 5 10 15}

0 2 4 6 8

10 B o i l e r l o a d

1 0 0 . 0 % 6 2 . 5 % 8 7 . 5 % 5 0 . 0 % 7 5 . 0 %

So ot em is si on s (m g /

3m)

F G R r a t e ( % )

1691