Advanced Gas Turbine Technology GT26 Presentation at the Jornada Tecnológica in Madrid potx

Advanced Gas Turbine
Technology GT26
Presentation at the Jornada Tecnológica in Madrid
Johannes Wick
General Manager Gas Turbine Project Execution
26 October 2006
26 October 2006
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© 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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
z Market Requirements
z Design Features
z Operational Flexibility
z Development and Validation
z GT24/GT26 Overview and Fleet Status
z Summary
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26 Oct 06/jw
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z Increasing Efficiency
z Lower Emissions (NOx, CO)
z Improved Availability/Reliability

– Proven Technology
– Extended Lifetime
z Improved Operational Flexibility
– Part Load Operation
– Start-up times and loading gradients
– Fuel flexibility (e.g. C2+ content)
GT Technology
Today and future market requirements
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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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
z Market Requirements
z Design Features
z Operational Flexibility
z Development and Validation
z GT24/GT26 Overview and Fleet Status
z Summary
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Jornada Tecnológica
26 Oct 06/jw
R 4.38(26)
Annular Combustor

in GT8C2, GT13E2,
GT24 and GT26
EV burners used in all
ALSTOM gas turbines
Maintenance free, welded rotor
in all ALSTOM heavy duty gas turbines
GT Technology
Common ALSTOM GT Features
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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 Tecnológica
26 Oct 06/jw
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GT24/GT26 Technology
Welded Rotor
z One piece design with forged discs welded together
z Applied since 1929 to all GT and ST rotors
z Maintenance free - no restacking required – no major overhaul
No major overhauls:
Increased availability and reduced maintenance
Compressor LP Turbine HP Turbine
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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 Tecnológica
26 Oct 06/jw
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GT24/GT26 Technology
Single Shaft Sequential Combustion
annular EV Combustor
Annular
SEV Combustor
Retractable
SEV Fuel Lance
24 SEV Burners
EV = EnVironmental
SEV = Sequential EnVironmental
Retractable
EV Burners
with EV Fuel Lances
(GT24=20, GT26 =24)
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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 Tecnológica
26 Oct 06/jw
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GT24/GT26 Technology
EnVironmental (EV) Burner
z A standard burner design,
used in all ALSTOM gas turbines
z A simple robust design:
– No maintenance-prone cans, transition
pieces, or cross-fire tubes
– No burner inspections required
z 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
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© 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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
z Market Requirements
z Design Features
z Operational Flexibility
z Development and Validation
z GT24/GT26 Overview and Fleet Status
z Summary
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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 Tecnológica
26 Oct 06/jw
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GT24/GT26 Operation
Operation Concept
Load [% of base load]

100%
EV-Combustor Temperature
GT Exhaust Temperature
0%
SEV Combustor Temperature
SEV Ignition
at ~12% Load
40%
Inlet Air Mass flow
(Inlet Guide Vane Position)
VIGV idle position
VIGV open
z EV temperature maintained from about 30%-100% load for low emissions
z High exhaust temperature maintained from 40%-100% load for high CC part load efficiency
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© 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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
Part Load Efficiency
z GT exhaust temperature maintained from 40% to 100% GT load
z High 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 90 100
CCPP Load [%]
Relative CC Gross Efficiency
Sequential Combustion
Single Combustion
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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 Tecnológica
26 Oct 06/jw
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GT26 Technology
NOx Emissions
Lowest NOx Emissions from 40% - 100% Load
with the GT26 Sequential Combustion System
1
10
100
1000
40% 50% 60% 70% 80% 90% 100%
Relative Load [%]
NOx_dry @ 15%O2 [ppm]
Measurements at the GT26 Test Power Plant
in Birr Summer 2005
Typical permit limit of 25 vppm
Measurements

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© 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 Tecnológica
26 Oct 06/jw
R 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
M
u
l
t
i

S
h
a
f

t
S
i
n
g
l
e

S
h
a
f
t
165
140
Single Shaft:
Multi Shaft *:
HRSG purging
time
not included
GT
Ignition
* 1 static frequency converter
-> sequential start-up of GT’s
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© 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 Tecnológica
26 Oct 06/jw

R 4.38(26)
GT24/GT26 Gas Turbine
z Market Requirements
z Design Features
z Operational Flexibility
z Development and Validation
z GT24/GT26 Overview and Fleet Status
z Summary
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© 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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Quality Engineering
Rolls-Royce - ALSTOM Agreement
High Lift 3D Shape Inter-
action with Film Cooling
Uncovered Side Cooling
at Blade Trailing Edges
Rear Outer and Inner Discharge Nozzle
Internal Heat Transfer
Coefficient Prediction
Design for
Reduced Leakage
Secondary Air
Flow
Knowledge
Based Design

Systems and
Processes
External Heat Transfer
Coefficient & Tempera-
ture Prediction
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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 Tecnológica
26 Oct 06/jw
R 4.38(26)
Complete
C
P
1
C
P
0
C
P
2
C
P
3
C
P
4
Specify
Derive

Concept
Validate
Detail
Design
C
P
5
Introduce
to
fleet
Agreed
baseline
Development
specification
Concept
freeze
Design
freeze
Release for
introduction
Part &
Component Tests
e.g. burner tests
ALSTOM
Test
Power
Plant
GT24/GT26 Quality Engineering
Product Development Process
Validated to the Appropriate Level

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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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT8C2 Engine in
Simple Cycle Operation
GT26 Engine in
Simple Cycle Operation
GT24/GT26 Quality Engineering
ALSTOM’s GT Test Power Plant
Small Size
Advanced Technology
The ALSTOM
GT Test Power Plant
in Birr, Switzerland
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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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Quality Engineering
Why a Dedicated Test Power Plant?
9 Flexibility in test campaign
planning without commercial
time constraints

9 Ability to operate the engine at
extreme conditions
9 Proximity to R&D and
manufacturing facilities
9 Operating 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
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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 Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
z Market Requirements
z Design Features
z Operational Flexibility
z Development and Validation
z GT24/GT26 Overview and Fleet Status
z Summary
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Jornada Tecnológica
26 Oct 06/jw
R 4.38(26)
GT24/GT26 Gas Turbine
Key Advantages
z 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
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26 Oct 06/jw
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>2’000’000 fired hours with >40’000 starts
at >98% GT reliability
GT24/GT26 Gas Turbines
References
z 79 units commercial (51 x GT24, 28 x GT26)
*)
+ 19 GT26 units in construction
Thailand, Germany, Italy, Spain, UK, France & Australia
-> next project will get 100
th
turbine!
z 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
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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.
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26 Oct 06/jw
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GT24/GT26 Fleet
TOCOPILLA 1xKA26-1
Electroandina
DOCK SUD, 1xKA26-2 CDS
ALSTOM Gas Turbine Test
Power Plant, 1xGT26
GILBERT 1xGT24 Reliant
BURGIN 2xGT24 LG&E
AGAWAM 1xKA24-1 PDC
MIDLOTHIAN 4xKA24-1 ANP
ISLAND COGEN 1xKA24-1 Westcoast
LAKE ROAD 3xKA24-1 Lake Road
Generation
MILFORD 2xKA24-1 PDC
BLACKSTONE 2xKA24-1 ANP

BAYSIDE 1xKA24-1 Westcoast*)
HAYS 4xKA24-1 ANP
MIDLOTHIAN II 2xKA24-1 ANP
BELLINGHAM 2xKA24-1 ANP
LA PALOMA 4xKA24-1 PG&E
HAI FU, 2xKA24-2
Ever Power
TARANAKI 1 xKA26-1
Contact Energy
CHIBA
1xKA26-1 JFE
ROCKSAVAGE 1xKA26-2 InterGen
ENFIELD 1xKA26-1 E.On
SHOREHAM 1xKA26-1 Scottish Power
CORYTON 1xKA26-2 InterGen
LANGAGE 1xKA26-2 Centrica
BOWIN 2xKA26-1 Glow IPP Co.
BANG BO 1xKA26-1 EPEC
KHANG KHOI 2xKA26-2 Gulf Power
TERMOBAHIA 1xKA24-1 Petrobras/EV
Single Shaft Combined Cycle in red
Multi Shaft Combined Cycle in black & underlined
Simple Cycle in blue and italic
*) = Repowering Projects
MONTERREY 2xKA24-1 CFE
ROSARITO 2xKA24-1 CFE
HERMOSILLO 1xKA24-1 Union Fenosa
MONTERREY III 4xKA24-1 Iberdrola En.
Legend:
BESOS 1xKA26-1 Endesa

BESOS 1xKA26-1 Gas Natural
SAN ROQUE 1xKA26-1 Endesa
SAN ROQUE 1xKA26-1 Gas Natural
CASTEJON 1xKA26-1 Hc Energia
CARTAGENA 3xKA26-1 Gas Natural
CASTEJON 2 1xKA26-1 Hc Energia
MALAGA 1xKA26-1 Gas Natural
SOTO DE RIBERA 1xKA26-1 Hc Energia
RDK 1xKA26 EnBW *)
SWANBANK 1xKA26-1 CS Energy
TALLAWARRA 1xKA26-1 TRUenergy
SCANDALE 2xKA26-1 Eurosviluppo Elettrica
GISSI 2xKA26-1 Abruzzoenergia
MODUGNO 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
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Jornada Tecnológica
26 Oct 06/jw
R 4.38(26)
0%
20%
40%

60%
80%
100%
1
GT24/GT26 Fleet
Reliability (acc. ISO 3977/IEEE 762)
z 60 x GT24/GT26 units
monitored
– 82% of the plants in
commercial operation
z Data taken from start of
commercial operation
– until 30
th
June 06
– covers a total of
1’857’362 period hours
z No significant differences
between GT24 and GT26
GT Reliability
GT
Reliability
>98%
(including
GT auxiliaries)
Average Plant Reliability >97%
Average Plant Starting Reliability >95%
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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 Tecnológica
26 Oct 06/jw
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GT26 Power Plants
Some exceptional facts for GT26 Units
z GT26 CCPP Castejon
achieved 98.0% plant
availability in its first
3 years of operation
The GT24/GT26 is a reliable workhorse
z GT24/GT26 fleet record
of continuous operation
is 189 days in GT26
Bang Bo Plant in Thailand
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Jornada Tecnológica
26 Oct 06/jw
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z Cartagena Plant, Spain
– 1’200 MW based on
3 x GT26 single-shaft power trains
– EPC for CCPP & long term O&M
– Repeat order
z Complete plant handed over to
the client and in commercial
operation

z <25 months construction time
z PAC in achieved ahead of
schedule
GT26 Power Plants
Most Recent Commercial Plant in Spain
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