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Gas turbine
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Advanced Gas TurbineTechnology GT26
Presentation at the Jornada Tecnológica in Madrid
Johannes WickGeneral Manager Gas Turbine Project Execution
26 October 200626 October 2006
2© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
3© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
Increasing Efficiency
Lower Emissions (NOx, CO)
Improved Availability/Reliability
– Proven Technology
– Extended Lifetime
Improved Operational Flexibility
– Part Load Operation
– Start-up times and loading gradients
– Fuel flexibility (e.g. C2+ content)
GT TechnologyToday and future market requirements
4© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
5© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
Annular Combustorin GT8C2, GT13E2,GT24 and GT26
EV burners used in allALSTOM gas turbines
Maintenance free, welded rotorin all ALSTOM heavy duty gas turbines
GT TechnologyCommon ALSTOM GT Features
6© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Technology Welded Rotor
One piece design with forged discs welded togetherApplied since 1929 to all GT and ST rotorsMaintenance free - no restacking required – no major overhaul
No major overhauls:Increased availability and reduced maintenance
Compressor LP Turbine HP Turbine
7© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Technology Single Shaft Sequential Combustion
annular EV Combustor
AnnularSEV Combustor
RetractableSEV Fuel Lance
24 SEV Burners
EV = EnVironmentalSEV = Sequential EnVironmental
RetractableEV Burnerswith EV Fuel Lances(GT24=20, GT26 =24)
8© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Technology EnVironmental (EV) Burner
A standard burner design, used in all ALSTOM gas turbinesA simple robust design:– No maintenance-prone cans, transition
pieces, or cross-fire tubes– No burner inspections required
Perfect air and fuel mixing:– fuel gas injection into high velocity air
stream– flame stabilized in combustor with no
contact with burner
EV dry low NOx Technology -the cost effective way to low emissions
9© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
10© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 OperationOperation Concept
Load [% of base load]
100%
EV-Combustor Temperature
GT Exhaust Temperature
0%
SEV Combustor Temperature
SEV Ignitionat ~12% Load
40%
Inlet Air Mass flow(Inlet Guide Vane Position)
VIGV idle position
VIGV open
EV temperature maintained from about 30%-100% load for low emissionsHigh exhaust temperature maintained from 40%-100% load for high CC part load efficiency
11© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine Part Load Efficiency
GT exhaust temperature maintained from 40% to 100% GT loadHigh exhaust energy - optimal for high steam parameters under full and part load conditions
-
Relative CCPP Efficiency vs. CC Load
80%
85%
90%
95%
100%
40 50 60 70 80 90 100CCPP Load [%]
Rel
ativ
e C
C G
ross
Effi
cien
cy Sequential Combustion
Single Combustion
12© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT26 TechnologyNOx Emissions
Lowest NOx Emissions from 40% - 100% Loadwith the GT26 Sequential Combustion System
1
10
100
1000
40% 50% 60% 70% 80% 90% 100%Relative Load [%]
NO
x_dr
y @
15%
O2
[ppm
]Measurements at the GT26 Test Power Plant
in Birr Summer 2005
Typical permit limit of 25 vppm
Measurements
13© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine Combined Cycle Start-up Curves
Full Load
Hot Start (max. ~8 hrs shutdown)
Warm Start (~60 hrs shutdown)
Cold Start (>120 hrs shutdown)
47 115 145
Time [minutes]52
Mul
ti Sh
aft
Sing
le S
haft
165140Single Shaft:Multi Shaft *:
HRSG purging time
not includedGT
Ignition
* 1 static frequency converter-> sequential start-up of GT’s
14© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
15© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Quality Engineering Rolls-Royce - ALSTOM Agreement
High Lift 3D Shape Inter-action with Film Cooling
Uncovered Side Coolingat Blade Trailing Edges
Rear Outer and Inner Discharge Nozzle
Internal Heat TransferCoefficient Prediction
Design forReduced Leakage
Secondary AirFlow
KnowledgeBased DesignSystems andProcesses
External Heat Transfer Coefficient & Tempera-ture Prediction
16© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
Complete
CP1
CP0
CP2
CP3
CP4
Specify DeriveConcept ValidateDetail
DesignCP5
Introduceto
fleet
Agreed baseline
Development specification
Concept freeze
Design freeze
Release for introduction
Part & Component Tests e.g. burner tests
ALSTOMTest Power Plant
GT24/GT26 Quality EngineeringProduct Development Process
Validated to the Appropriate Level
17© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT8C2 Engine in Simple Cycle Operation
GT26 Engine in Simple Cycle Operation
GT24/GT26 Quality EngineeringALSTOM’s GT Test Power Plant
Small Size
Advanced Technology
The ALSTOM GT Test Power Plant in Birr, Switzerland
18© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Quality Engineering Why a Dedicated Test Power Plant?
Flexibility in test campaign planning without commercial time constraintsAbility to operate the engine at extreme conditionsProximity to R&D and manufacturing facilitiesOperating experience under real load conditions(connection to Swiss grid)
GT Test Power Plant and Rotor/Blade Manufacturing in Birr,
Switzerland(15 min from Baden Office)
The ALSTOM Gas Turbine Test Power Plant Advantage
19© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
20© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas TurbineKey Advantages
Advantages of GT24 / GT26 Sequential Combustion seen in the field – Superior part load efficiencies– Low emissions from 40% to 100% load– High fuel flexibility (natural gas composition; oil No.2)– Very low combined cycle start-up times
21© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
>2’000’000 fired hours with >40’000 startsat >98% GT reliability
GT24/GT26 Gas TurbinesReferences
79 units commercial (51 x GT24, 28 x GT26)*)
+ 19 GT26 units in constructionThailand, Germany, Italy, Spain, UK, France & Australia
-> next project will get 100th turbine!
Fleet Experience:– Simple Cycle, Combined Cycle and Repowering– Single Shaft and Multi Shaft– From “Daily starts and stops” to “base load” operating plants– Natural gas (also with high inert/C2+), oil with online fuel switch-
over– Power Augmentation by Inlet cooling & High Fogging
*) excl. GT26 at the GT Test Power Plant in Birr, CH
22© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Fleet
TOCOPILLA 1xKA26-1Electroandina
DOCK SUD, 1xKA26-2 CDS
ALSTOM Gas Turbine Test Power Plant, 1xGT26
GILBERT 1xGT24 ReliantBURGIN 2xGT24 LG&EAGAWAM 1xKA24-1 PDCMIDLOTHIAN 4xKA24-1 ANPISLAND COGEN 1xKA24-1 WestcoastLAKE ROAD 3xKA24-1 Lake Road
Generation MILFORD 2xKA24-1 PDCBLACKSTONE 2xKA24-1 ANPBAYSIDE 1xKA24-1 Westcoast*)HAYS 4xKA24-1 ANPMIDLOTHIAN II 2xKA24-1 ANPBELLINGHAM 2xKA24-1 ANPLA PALOMA 4xKA24-1 PG&E
HAI FU, 2xKA24-2 Ever Power
TARANAKI 1 xKA26-1 Contact Energy
CHIBA1xKA26-1 JFE
ROCKSAVAGE 1xKA26-2 InterGenENFIELD 1xKA26-1 E.OnSHOREHAM 1xKA26-1 Scottish PowerCORYTON 1xKA26-2 InterGenLANGAGE 1xKA26-2 Centrica
BOWIN 2xKA26-1 Glow IPP Co.BANG BO 1xKA26-1 EPECKHANG KHOI 2xKA26-2 Gulf Power
TERMOBAHIA 1xKA24-1 Petrobras/EV
Single Shaft Combined Cycle in redMulti Shaft Combined Cycle in black & underlinedSimple Cycle in blue and italic*) = Repowering Projects
MONTERREY 2xKA24-1 CFEROSARITO 2xKA24-1 CFEHERMOSILLO 1xKA24-1 Union FenosaMONTERREY III 4xKA24-1 Iberdrola En.
Legend:
BESOS 1xKA26-1 EndesaBESOS 1xKA26-1 Gas NaturalSAN ROQUE 1xKA26-1 EndesaSAN ROQUE 1xKA26-1 Gas NaturalCASTEJON 1xKA26-1 Hc EnergiaCARTAGENA 3xKA26-1 Gas Natural CASTEJON 2 1xKA26-1 Hc EnergiaMALAGA 1xKA26-1 Gas NaturalSOTO DE RIBERA 1xKA26-1 Hc Energia
RDK 1xKA26 EnBW *)
SWANBANK 1xKA26-1 CS EnergyTALLAWARRA 1xKA26-1 TRUenergy
SCANDALE 2xKA26-1 Eurosviluppo ElettricaGISSI 2xKA26-1 AbruzzoenergiaMODUGNO 1xKA26-2 Energia
SENOKO 1xKA26 Senoko Power *) SENOKO II 2xKA26 Senoko Power *)
PORYONG, 4 xKA24-2 KEPCO
RINGSEND 1 xKA26-1 Synergen
CyCoFos 1xKA26-1 CyCoFos
23© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
0%
20%
40%
60%
80%
100%
1
GT24/GT26 FleetReliability (acc. ISO 3977/IEEE 762)
60 x GT24/GT26 units monitored
– 82% of the plants in commercial operation
Data taken from start of commercial operation
– until 30th June 06– covers a total of
1’857’362 period hours
No significant differences between GT24 and GT26
GT Reliability
GTReliability
>98%(including
GT auxiliaries)
Average Plant Reliability >97%Average Plant Starting Reliability >95%
24© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT26 Power PlantsSome exceptional facts for GT26 Units
GT26 CCPP Castejonachieved 98.0% plant availability in its first3 years of operation
The GT24/GT26 is a reliable workhorse
GT24/GT26 fleet recordof continuous operationis 189 days in GT26Bang Bo Plant in Thailand
25© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
Cartagena Plant, Spain– 1’200 MW based on
3 x GT26 single-shaft power trains– EPC for CCPP & long term O&M– Repeat order
Complete plant handed over to the client and in commercial operation<25 months construction timePAC in achieved ahead of schedule
GT26 Power PlantsMost Recent Commercial Plant in Spain
26© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
all data at ISO conditions
Plant Net Output MW 424.0 850.3 857.7
Plant Net Efficiency % 58.3 58.5 59.0
Plant Net Heat Rate kJ/kWh 6’172 6’156 6’103
KA26-1Single Shaft
1 on 1
KA26-2Multi Shaft
2 on 1
Gross Gas Turbine ISO RatingGT26 288.3 MW 38.3 %
GT26 Gas Turbine GT and Plant Performance
KA26-2 ICSTM
Multi Shaft2 on 1Net Combined Cycle Plant Output
ALSTOM’s large size, advanced GT26:Highest combined cycle efficiency in its class
27© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
GT24/GT26 Gas Turbine
Market Requirements
Design Features
Operational Flexibility
Development and Validation
GT24/GT26 Overview and Fleet Status
Summary
28© ALSTOM 2006. All rights reserved. Information contained in this document is provided without liability for information purposes only and is subject to change without notice. No representation or warranty
is given or to be implied as to the completeness of information or fitness for any particular purpose. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Jornada Tecnológica26 Oct 06/jwR 4.38(26)
Gas Turbine TechnologySummary
Evolutionary steps ensure a conservative approachtowards 60% CCPP efficiency with existing platforms
Two ways of developments in the market: – New model with new technology
• Steam cooling, new materials …– Upgrading mature technologies
ALSTOM’ way: upgrades mature technology– With proven elements & calibrated tools– Maximization of performance and decrease of emissions– Optimisation of economics
Upgrades validated and in operationUpgrades accepted by the market– 15 engines with new rating already sold
Recommended