Conventional Firing Systems for Future Power Plants International Conference POWER PLANTS 2012 H. Brüggemann Zlatibor, Serbia, 30.10. – 02.11.2012
International Conference
POWER PLANTS 2012 from October 30th to November 2nd 2012 in Zlatibor, Serbia
„Conventional Firing Systems for Future Power Plants“ H. Brüggemann, ALSTOM Boiler Deutschland GmbH, Stuttgart T.-M. Marling, ALSTOM Boiler Deutschland GmbH, Stuttgart
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 2 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
History ALSTOM Boiler Deutschland GmbH 1921 Foundation of KSG Kohlenscheidungs-Gesellschaft mbH in Nuremberg, from 1924 to 1949 residence of the company in Berlin, since 1949 in Stuttgart 1970 Foundation of EVT Energie-und Verfahrenstechnik GmbH in Stuttgart Owners: Walther, Hugo Stinnes, CE and MAN 1975 The power station activities from MAN Nuremberg are integrated, New Owners: MAN, Walther and CE 1989 GEC ALSTHOM becomes majorit share holder of EVT by acquiring all of the CE shares (Combustion Engineering) 1995 EVT is completely taken over by the GEC ALSTHOM group
1998 Change of name from GEC ALSTHOM to ALSTOM, EVT to ALSTOM Energy Systems 1999 Merger of the power station activities of ALSTOM and ABB ABB ALSTOM Power, ALSTOM Energy Systems to ABB ALSTOM Power Combustion GmbH 2000 ALSTOM takes over all shares of ABB, change of company name to ALSTOM Power Boiler GmbH
2006 Sale of ALSTOM Industrial Boilers to AE & E 2007 Change of name to Alstom Power Systems GmbH (Head office in Mannheim, Branch Stuttgart) 2011 Change of name to ALSTOM Boiler Deutschland GmbH (Head office Stuttgart) Residence of the company: sinze 1949 Stuttgart, sinze 1989 Stuttgart-Obertürkheim Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 3
097 176px
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 4 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 5 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Introduction – Challenges of Tomorrow
Source: C. Ziems, H. Weber, S. Meinke, F. Gottelt, E. Hassel, J. Nocke, „Einfluss der EE auf die Netzstabilität und maximal mögliche Einspeisung von Wind- & Solarenergie (in Deutschland)“, „Power Plant Technology Forum“, Hannover Messe, 06.04.2011
Varying boundary conditions will change the use of conventional power plants in the future: No distinct baseload, middleload or peakload operation Power demand occasionally covered completely by unadjustable renewable power extremly developed variation of residual load Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 6
001 1284p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Introduction – Status Quo
PV- und Windstromeinspeisung im Netzgebiet von 50Hertz Transmission GmbH vom 01.10.2011 bis 31.03.2012 in MW. Gelbe Markierung: Zeiträume, in denen zusätzlich zu den herkömmlichen netzstabilisierenden Maßnahmen zu Einspeisereduzierungen aufgerufen werden musste, um eine weiterreichende kritische Netzsituation abzuwenden. Quelle: Bericht zum Zustand der leitungsgebundenen Energieversorgung im Winter 2011 / 2012, Bundesnetzagentur, 03. Mai 2012
Already today: Variability of Power from RE Compensation for Variability Interventions to stabilize Grid become necessary Departure from Nuclear Power Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 7
NEW Challenges for Conventional Power Plants 001 1285p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 8 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Requests for Conventional Power Plants Expectations of Conventional Power Plants Safe Supply
high availability reduced emissions high efficient
Environmental friendly careful use of ressources
Economical
maintainability flexibility
Compliant to the grid Lower technical min Load
The Conventional Power Plants need to cope with the increased requirements
Shorter Start-Up Time Faster Load Changes More Load Cycles
Wider Fuel Ranges Alternative Fuels
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 9
001 1286p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 10 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation Conventional Firing Options Flexible Power Plants Optimisation of Conventional Firing
Process Optimisation
Implementation of Indirect Firing
Optimisation of Equipment Reduction of the shaft output (auxiliary power) on the example of a primary air (PA) fan (radial fan)
Optimisation Pressure Parts and Materials
Improvement of the part-load efficiency on the example of a primary air (PA) fan (radial fan)
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 11
001 1289p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility – Equipment Tuning
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 12 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Lignite Firing Arrangement with Compact Main Burner
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 13
031 379p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation Conventional Power Plants for Lignite Min Load Reduction due to Process and Equipment Optimisation Full Load: 7 Mills
Min Load usually: 4 Mills Newly built Plants: 40 % Existing Plants: 50 %
Min Load after Optimisation: 3 Mills Newly built and Existing Plants: 35 % - 40 % Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 14
035 346p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation – Conventional Power Plants for Lignite – Reburning Firing System Reduction of min Load / Flame Stability for lowest Loads Fuel Range Extension
Fuel Enrichment at Main Burners and Reburning Effect at Reburning Burner Increased Flame Stability for lowest Loads
Furnace of a Lignite Fired Power Station Schwarze Pumpe with Reburning Schwarze Pumpe, 2 x 800 MW el, Germany Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 15
031 372p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation – Conventional Power Plants Load Range Extension for Lignite Min Load Reduction due to Process and Equipment Optimisation 7-Mills in Op.
Range Extension for Operation (increased Flexibility)
6-Mills in Operation
Usual Range for Operation 5-Mills in Operation
Reduced Min Load
4-Mills in Operation
3-Mills in Operation 30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Life Steam Production [%] Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 16
033 296p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimised Systems – Lignite
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 17
007 519p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation – Conventional Power Plants for Bituminous Coal Min Load Reduction due to Process and Equipment Optimisation Full Load: 4 Mills
Min Load usually: 2 Mills
Newly built Plants: 25 % Existing Plants: 40 % Min Load after Optimisation: 1 Mill Newly built and Existing Plants: 15 % - 20 % Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 18
030 202p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation – Conventional Power Plants Load Range Extension for Bituminous Coal Min Load Reduction due to Process and Equipment Optimisation
4-Mills in Operation
3-Mills in Operation Reduced Min Load 2-Mills in Operation Usual Load Range
1-Mill in Operation
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Life Steam Production [%] Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 19
033 297p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation Tilting Burner for Bituminous Coal Min. Load Reduction / Part Load Stability Increased Part Load Efficiency
ALSTOM Tilting-Burner
Wai Gao Qiao, 1,000 MW el, China
Karlsruhe 8, 912 MW el, Germany
Increased Flexibility (Low Load Operation & Load Changes)
Increase of Efficiency
Compact Burners (Reliability, Cost)
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 20
030 203p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation – Tilting Burner for Bituminous Coal down
-30 [°] -20 -10
10 [kg/s] 9 8 7
Δ RH Temperature = 17 K
6 0
RH Temperature [°C]
5
HP Temperature [°C]
4 +10
Low Load Operation
Increase of Efficiency
+20
3 2 1
+30
up
Compact Burners
Stabilizing low Loads
Utilizing a wider Range of Operation
Δ Tilting burner + 16 °
Burner Tilting [%] RH Injection [kg/s]
0 11:25
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 21
11:35
11:45
11:55
Time
030 204p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Change of Fuel – Fuel Flexibility 35 30
Enlarged Fuel Range for Imported Fuel
25
Ash [%]
Range of local Fuel
20 15
Conventinel Range of Bituminous Fuel
10 5 0 4
6
8
10
12
14
16
Moisture [%]
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 22
18
20
22
24
26 058 301p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
in Operation
Duct Burner
Primary Air
Optimisation Options for Mills for Bituminous Coal
Source: REBURNFLAM Kanal-/Flächenbrenner; Pillard Feuerungen GmbH
Dynamic Classifier
Gas supply
Mill
Fuel Range Extension Fast Load Changes Fuel Range Extension
Booster fan
Fuel to Mill
Faster Start-Up Low Load Operation
Fuel Range Extension Source: ROTAMILL GmbH
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 23
036 308p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Conventional Power Plants
Implementation of Independant Biomass System Cofiring of alternative Fuel (Biomass) Wall Air / Upper Air Fuel Nozzle Intermediate Air / Oilburner
Storage Silo
Fuel Nozzle Lower Air / Biomass Wall Air / Upper Air
Pneumatic Transport Lines
Screw Conveyors
Dedusting
Fuel Nozzle Intermediate Air / Oilburner Fuel Nozzle Lower Air
Compressed Air Supply
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 24
008 750p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Conventional Power Plants Biomass Grate Co-Combustion of Biomass (Biomass)
Grate Firing System
Bark Pieces
Woodchips
Sewage Sludge
Etc.
Coal Burner
Biomass Feed
Biomass Feed
Ash Extraction Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 25
Biomass Grate 030 205p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility – Indirect Firing
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 26 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Conventional Firing Option for Dynamic Response Improvement Mill Burner
Mill PF Separator / Silo Burner
Direct Firing System (Conventional)
(Partly) Indirect Firing System
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 27
030 211p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Indirect Firing System Reduction of dynamic Response Delay Fast Load Changes
Reduction of dynamic Response Delay (Secondary Control)
Grinding Process causes Delays due to Storage Capacity of Mill
Indirect Firing separation of Grinding and Storage
Significant Reduction of System Response Time Significant Improvement in dynamic Response Time L1
Indirect Firing: Load Ramps up to 10 % / min
Load
Conventinal Firing: Load Ramps up to 2 % - 5 % / min L0
t0
t1, Indirect Firing
t1, Conventional Firing
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 28
Time 002 775p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Conventional Firing Lignite – Dried Lignite Firing Niederaußem K: 8 x 90 MWth
• Start-up/Support Firing • Operation since 2003
Dried Lignite Burner Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 29
Dried Lignite Storage Silo 031 374p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Conventional Firing Lignite and Bituminous Coals Ranges for flexible Operation
Optimised Firing System - Lignite
Optimised Firing System - Bituminous Coal
Indirect Firing System for Lignite and for Bituminous Coal
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Life Steam Production [%] Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 30
033 298p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Low Loads and Start-Ups
Low Load Operation – Improvement of Part Load Efficiencies – Reduction of Cooling and Parasitic Air Ingress – Stability of Firing – Utilisation of a wide Range of operation
Start-Up – Replacement of Expensive Start-Up Fuel by Main Fuel
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 31 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility – Part Load Efficiency
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 32 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Optimisation of Part Load Increased Part Load Efficiency Improvement of the part-load efficiency on the example of a primary air (PA) fan (radial fan)
Today:
Efficiency with frequency converter
Efficiency of fans
Components were designed for Optimum in Efficiency for nominal Load.
Efficiency with inlet vane control
Silencer
Future:
Intake
Dramatic reduction of operating Hours under full Load require Reconsideration of Design and Specification of Components.
Reduction of the shaft output (auxiliary power) on the example of a primary air (PA) fan (radial fan)
Shaft output (auxiliary power) of the fans
Optimisation of Components (Fans, Pumps, other Equipment) to achieve acceptable over all Efficiency.
PA-Fan
Total fan work
Shaft output with inlet vane control Shaft output with frequency converter
Total fan work
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 33
061 014p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Agenda Introduction – What are the Challenges of Tomorrow?
State of the Art – What is achievable?
Options to Increase the Flexibility
Summary Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 34 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
State of the Art – What is feasible? State of the Art
Further Development
(Newly built and existing Plants)
2 - 6 Hours
1 - 4 Hours
Depending on Start-up Conditions
Depending on Start-up Conditions
Minimum Load Bituminous Coal
Newly built Plants: 25 % Existing Plants: 40 %
Conventional Firing 15 - 20 % Indirect Firing 10 % - 15 %
Minimum Load Lignite
Newly built Plants: 40 % Existing Plants: 50 %
Conventional Firing 35- 40 % Indirect Firing: 10 % - 15 %
Moderat
High to very High
2 % / 30 s (Grid Request in Ger) Up to 5 % / 30s possible
Up to 10 % / 10 s
Load Ramps (Secondary Control )
ca. 2 – 5 % / min
Up to 10 % / min
Load Ramps (Secondary Control )
10 % CoCombustion
100 % Combustion
Time for Start -up
Load Change Cycles
Load Jumps (Primary Control )
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 35
001 1288p
© ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Summary
Use of conventional fossil fired Power Plants has changed decisively due to changed boundary Conditions – Power Trading, worldwide increasing Demand for Coal, increased Use of renewable Energy, departure from nuclear Power.
Less conventional Power Plants in Operation have to compensate difference between demand of Power and Generation of Power, using highly fluctuating renewable Energy Sources.
Power Plans are already at a high level of technology (Efficiency, Emissions and Operating Ranges) but need further Improvements to accomodate the Future Demands.
Further Tuning of Firing Components and Consideration of the Water and Steam Side, Load Range can be extended.
Wide Portfolio is ready for Use to help to extend Operation Load Ranges and Fuel Range and can improve the Start-up behaviour and Flexibility of existing as well as newly built Power Plants significantly.
Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 36 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
International Conference POWER PLANTS 2012
Thank you for your interest! ALSTOM Boiler Deutschland GmbH, Stuttgart Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 37 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
International Conference POWER PLANTS 2012
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ALSTOM Boiler Deutschland GmbH, Stuttgart Conventional Firing Systems for Future Power Plants - H. Brüggemann, T.-M. Marling - - 30.10. - 02.11.2012 - P 38 © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
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