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Symulacja kotła K-4 w ERSA Zmodernizowany układ paleniskowy przez konsorcjum Energotechnika-Energorozruch S.A.- IPW Polin Sp. z o.o. - 5 zespołów młynowych.

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Presentation on theme: "Symulacja kotła K-4 w ERSA Zmodernizowany układ paleniskowy przez konsorcjum Energotechnika-Energorozruch S.A.- IPW Polin Sp. z o.o. - 5 zespołów młynowych."— Presentation transcript:

1 Symulacja kotła K-4 w ERSA Zmodernizowany układ paleniskowy przez konsorcjum Energotechnika-Energorozruch S.A.- IPW Polin Sp. z o.o. - 5 zespołów młynowych w ruchu - praca na samym węglu - moc bloku 225MWe Modelowanie wykonane przez: Dipl.-Ing. Frank Blum, Dr.-Ing. Xiaohai Han, Dr.-Ing. Benedetto Risio RECOM Services GmbH, Stuttgart

2 Simulation of RYBNIK-Boiler 2 3D-Geometry Model Burner and OFA Arrangement Front View OFA-II - fully opened (tilted down 15°) OFA-I (no tilting – fully opened) Thinned Air-Coal Mix (tilted down 15°) Biomass/Oil Nozzle (tilted down 15°) Burner Level 2 Burner Level 1 OFA-III on Rear Wall - fully opened (tilted down 20°) 5 Mills in Operation 10 Burners in Operation 10 Nozzles of Thinned Air-Coal Mix in Operation

3 Simulation of RYBNIK-Boiler 3 Coal and Air Mass Flows Brn Level 1 (12.6 m) Brn Level 2 (15.1 m) Thinned Mix (20.85 m) Total Coal mass flow [kg/s] 4 × 1.89 = × 1.89 = × 0.81 = Core air [kg/s] 0.81, Primary air [kg/s] 4 × 3.35 = × 3.35 = × 3.35 = Secondary air [kg/s] Tertiary air [kg/s] Level Air/Coal Ratio OFA-I [kg/s] 11.4 ( = 0.056) 11.4 OFA-II [kg/s] 34.2 ( = 0.168) 34.2 OFA-III [kg/s] 24.8 ( = 0.122) 24.8 Protective air [kg/s] 28.5 (rear & side walls) ; 5.1 (Front wall) ( = 0.165) 33.6 Bottom air [kg/s] 4.8 ( = 0.024) 4.8 Total Air [kg/s] ( = 1.15)

4 Simulation of RYBNIK-Boiler 4 Coal Analysis C (ar) [%]56.40 H (ar) [%]3.57 O (ar) [%]3.92 N (ar) [%]0.98 S (ar) [%]0.63 Ash (ar) [%]27.10 Moisture (ar) [%]7.40 Volatile (daf) [%]27.5 Hu (daf) [MJ/kg]33.5 Coal Analysis and Particle Size Distribution R 88 = 30 % R 200 = 5 % Main Burner (12.6m & 15.1 m)

5 Simulation of RYBNIK-Boiler 5 Coal Analysis C (ar) [%]56.40 H (ar) [%]3.57 O (ar) [%]3.92 N (ar) [%]0.98 S (ar) [%]0.63 Ash (ar) [%]27.10 Moisture (ar) [%]7.40 Volatile (daf) [%]27.5 Hu (daf) [MJ/kg]33.5 Coal Analysis and Particle Size Distribution R 88 = 15 % R 200 = 1 % Thinned Air-Coal Mix (20.85 m)

6 Simulation of RYBNIK-Boiler 6 Velocity [m/s] Velocity Distribution: Magnitude FWFW RWRW

7 Simulation of RYBNIK-Boiler 7 Velocity [m/s] Velocity Distribution: Magnitude FWFW RWRW FWFW RWRW

8 Simulation of RYBNIK-Boiler 8 Temperature [°C] Temperature Distribution FWFW RWRW

9 Simulation of RYBNIK-Boiler 9 FWFW RWRW FWFW RWRW Temperature [°C] Temperature Distribution

10 Simulation of RYBNIK-Boiler 10 ° Fluegas Temperature Profile along Furnace Height Sec. Pass 35/ Cross Pass OFA1 OFA3 BL1 BL2 BL4 OFA2 FE

11 Simulation of RYBNIK-Boiler 11 Oxygen Distribution Oxygen [vol.-%, dry] FWFW RWRW

12 Simulation of RYBNIK-Boiler 12 FWFW RWRW FWFW RWRW Oxygen [vol.-%, dry] Oxygen Distribution

13 Simulation of RYBNIK-Boiler 13 Carbon Monoxide Distribution CO [vol.-%, dry] FWFW RWRW

14 Simulation of RYBNIK-Boiler 14 FWFW RWRW FWFW RWRW Carbon Monoxide Distribution CO [vol.-%, dry]

15 Simulation of RYBNIK-Boiler 15 CO-Profile along Furnace Height Sec. Pass 35/ Cross Pass OFA1 OFA3 BL1 BL2 BL4 OFA2 FE

16 Simulation of RYBNIK-Boiler 16 NOx-Profile along Furnace Height Sec. Pass 35/ Cross Pass OFA1 OFA3 BL1 BL2 BL4 OFA2 FE

17 Simulation of RYBNIK-Boiler 17 Boiler Exit and Emission Values Simulation for Polin-Concept with Protective Air Furnace Exit Temp. (mean/max) [°C] (Level 34.7 m) 1245/1360 Fluegas Temp. after ECO [°C]344 O 2 after ECO [Vol.-%,dry]3.2 CO [mg/Nm 3, at 6% O 2 ]46 NOx [mg/Nm 3, at 6% O 2 ]326 Unburned Carbon in Ash5.6


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