CFD usage in Alstom ECS - Chalmers · CFD usage in Alstom ECS Ali Tabikh 05 2006. Date of last...
25
CFD usage in Alstom ECS Ali Tabikh 05 2006 05 2006
Transcript of CFD usage in Alstom ECS - Chalmers · CFD usage in Alstom ECS Ali Tabikh 05 2006. Date of last...
CFD usage in Alstom ECS
Ali Tabikh
05 200605 2006
Date of last change Reference/Name of Presentation/SN 2
SIAMUF
Alstom History Alstom Business areas…….. About Environmental Control Systems (ECS) , Växjö
– Electrostatic Precipitators (ESP)– Wet Flue Gas Desulphurisation (WFGD)– Dry Flue Gas Desulphurisation (DFGD)– Selective Catalytic Reduction (SCR)– Dioxines… and CO2 reduction
Modelling in Alstom– Physical Modelling– CFD Modelling
• CFD as a design tool
Discussions
Summary
Date of last change Reference/Name of Presentation/SN 3
Alstom History
GEC-ALSTHOM
3
ALSTHOMALSTHOM
Date of last change Reference/Name of Presentation/SN 4
ALSTOM
Global specialist in Global specialist in infrastructureinfrastructure for for energyenergy and transport and transport4
Transport Marine
T & D
Date of last change Reference/Name of Presentation/SN 5
ALSTOM today
Sales €13.7 bn*
Orders €15.8 bn*
Employees 64 000
Present in 70 countries
Power
* FY 2004/05 figures
Date of last change Reference/Name of Presentation/SN 6
ALSTOMPower
ALSTOMT&D
ALSTOMTransport
ALSTOMSverige
6
Astom Sverige
Date of last change Reference/Name of Presentation/SN 7
Anställda i Sverige 3 000varav:
• Industriturbiner 2 100
• Customer Service 450
• Hydro Systems 180
• Boiler & Environment 140
• T&D 130
Anställda i Sverige 3 000varav:
• Industriturbiner 2 100
• Customer Service 450
• Hydro Systems 180
• Boiler & Environment 140
• T&D 130
Orter med mer omfattandeverksamhet
Övriga orter
Alstom Sweden
7
Orderingång €725 M. 01/02Orderingång €725 M. 01/02
VVääxjxjöö
Stockholm
Luleå
Skellefteå
Sundsvall
Gävle
VästeråsStorforsStorfors
Ludvika Enköping
ÖÖrebrorebro
GGööteborgteborg
MalmMalmöö
FinspFinspåångng
KarlstadKarlstadVäxjö
FinspFinspåångng
VVäästersterååss
Date of last change Reference/Name of Presentation/SN 8
VVääxjxjöö8
Products and Services
Environmental ControlSystems
– Particulate cleaning systems
– Flue gas cleaning systems
– "Waste-to-Energy"
– Service & maintenance
Date of last change Reference/Name of Presentation/SN 9
Electrostatic Precipitator (ESP)
Particulate cleaning systems
Date of last change Reference/Name of Presentation/SN 10
ESP Principle
Discharge electrodes Discharge electrodes
Dust-laden gas
Dust particles
Collected dust
Clean gas
Collecting electrodes
Corona
90B03CSP/06-97
Date of last change Reference/Name of Presentation/SN 11
Fabric Filter
Particulate cleaning systems
Date of last change Reference/Name of Presentation/SN 12
WFGD
Air
LimestoneForced Oxidation
Mill
ME Wash
Water
Cake Wash(Optional)
PrimaryDewatering
SecondaryDewatering
Fabric FilterOr ESP
Absorber
ReclaimWaterTank
Make-UpWaterTank
GYPSUM
Date of last change Reference/Name of Presentation/SN 13
WFGD
ReagentPreparationSystem
AbsorberVessel
Dewatering Area
Date of last change Reference/Name of Presentation/SN 14
DFGD
NID system
Date of last change Reference/Name of Presentation/SN 15
DFGD (SDA)
Date of last change Reference/Name of Presentation/SN 16
Date of last change Reference/Name of Presentation/SN 17
Modelling and Pilot Testing
Physical Modelling
CFD Modelling
Pilot Testing
Date of last change Reference/Name of Presentation/SN 18
Physical Modelling
Date of last change Reference/Name of Presentation/SN 19
CFD Modelling
Single phase – ESP ( flow distribution prediction)
– Fabric Filter ( Flow distribution and pressure drop)
– SCR ( Flow, NH3, NOX, and Temperature distribution)
– Gas mixing
Multiphase – SCR ( Ash Capture, NH3 direct injection)
– DFGD ( SDA )
– SWFGD (Flue gas conditioning)
Date of last change Reference/Name of Presentation/SN 20
CFD Modelling
Single phase
Date of last change Reference/Name of Presentation/SN 21
CFD Modelling
Multiphase
Date of last change Reference/Name of Presentation/SN 22
Pilot Testing
Multiphase Validation
Level z = -100 mm
-25
-20
-15
-10
-5
0
5
10
15
20
-0.65 -0.45 -0.25 -0.05 0.15 0.35 0.55
Distance from centerline [m]
[m/s
]
Velocity u, CFD Velocity u, meas
Level z= -100 mm
-35
-30
-25
-20
-15
-10
-5
0
5
10
-0.65 -0.45 -0.25 -0.05 0.15 0.35 0.55
Distance from centerline [m]
[m/s
]
Velocity w, CFD Velocity w, meas
Date of last change Reference/Name of Presentation/SN 23
Pilot Testing
Multiphase Validation
Date of last change Reference/Name of Presentation/SN 24
Conclusions
More validation is needed
www.alstom.com
