b09_boon_gdf

September 24,2010

Essen

A view on developments in Gas Turbines An overview of suppliers activities

Gustaaf Boon,

Technology Intelligence Officer

Direction Research & Innovation

Prof. Thermal Power plants VUB

2

GDF SUEZ Some figures

• €79.9 billion in 2009 revenues.

• 1st company in the “utilities” sector worldwide (Forbes Global 2000).

• €30 billion net invested over 2008-2010.

• 72.7 GW of installed power-production capacity.*

• 200,650 employees throughout the world

- incl. 134,750 in energy and services

- and 65,900 in environment.

• 1,200 researchers and experts in 9 R&D centers.

* Including 100% of the capacity of GDF SUEZ assets

at December 31, 2009 regardless of the actual holding rate..

3

Breakdown of power generation in 2009

* Including 100% of the capacity of GDF SUEZ

assets regardless of the actual holding rate.

Breakdown by region*

16%

Nuclear

16%

Hydro power

53%

Natural gas

11%

Coal

1%

Biomass

and biogas

1%

Wind

power

2%

Other

Breakdown by fuel*

296 TWh

Benelux

& Germany

France

Rest

of Europe

North

America

South

America

Middle East

& Pacific15%

16.5%

30.2%

8.7%

17.9%11.6%

4

What is new for gas turbines? …. and CCGT’s .

• Gas turbines play today an important role in power generation and

will continue to do in the next decades.

• Question to the suppliers: please , give an overview of the recent

developments?

• This presentation summarizes the answers of Siemens, Alstom,

Ansaldo and Mitsubishi.

• Evolutions more then revolutions by optimization of:

Mass flow , air use for cooling and leaks.

Temperature, material choose and cooling.

Improved flexibility

Improved control systems

Improved maintenance

Siemens Energy Solutions, E F ES

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SGT5-4000F – the workhorse

Overview and Performance

Combustion Chamber

Compressor

24 Hybrid Burners

Turbine

Rotor with

Hirth serration and

single rod tie bolt

SGT5-4000F

292

39.8

423

58.4

MW

%

MW

%

GT Power (gross)

GT Efficiency (gross)

CC Power (net)

CC Efficiency (net)

692

18.2

577

kg/s

°C

Exhaust Flow

Pressure Ratio

Exhaust Temperature

3000

1996

rpm

year

Speed

Introduction

SGT5-4000F

292

39.8

423

58.4

MW

%

MW

%

GT Power (gross)

GT Efficiency (gross)

CC Power (net)

CC Efficiency (net)

692

18.2

577

kg/s

°C

Exhaust Flow

Pressure Ratio

Exhaust Temperature

3000

1996

rpm

year

Speed

Introduction

Siemens Energy

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GdF Suez – VGB Tagung Essen

SGT5-4000F: Siemens unique features

Easily accessible annular combustion

chamber w/o cover lift for short inspection

downtime

Single-crystal turbine blades with thermal

barrier coating and film cooling for

component longevity

Hydraulic turbine blade tip clearance

control for baseload efficiency

improvement

All blades removable with rotor in place for

easy maintenance and shorter outages

Hirth serration with single tie bolt for stiff &

light rotor and quick thermal response due

to internal flow passages allows for world

class fast start up and hot restart

capabilities


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SGT5-4000F

Overview Experience

The Reliability of SGT5-4000F is at a level of 99,6%.

233 units under contractthereof 159 units in operation(+40 license engines sold or running)

> 4.630.000 EOH whole fleet> 98.000 EOH fleet leader

Operating experience

Order status

Status: 2009


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Major Upgrades of SGT5-4000F

Successful history is continued with the latest upgrade

step

1996

240 MW/ 37.0%

2000

266 MW/ 38.6%

MarketIntroduction

2004

287 MW/ 39.5%

292 MW/ 39.8%

2008

1. Upgrade

2. Upgrade

LatestUpgrade

2nd Compressor Upgrade

Combustor Cooling Air Saving

Hydraulic Clearance Optimization

Fuel Gas Preheating

Cooling Air Reduction

1st Compressor

Upgrade

Siemens Energy

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Selection of Recent Single Shaft Projects under

construction in Europe as Reference for SGT5-4000F

Pego, Portugal Pont sur Sambre, France Severn Power, UK

Rijnmond, NetherlandMalzenice, Slovakia Mellach, Austria

…demonstrating the superior economics of the Siemens concept allowing also

heat extraction in several projects to raise economy and ecology


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SCC5-8000H 1S output 570 MW

GT output 375 MW

GT efficiency 40%

GT heat rate < 9231 kJ/kWh

Fuel Nat. gas, fuel oil

Grid frequency 50 Hz

Weight 444 t

Length 13,2 m

Height 5,0 m

Key data


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High cycling capability due to

advanced blade cooling system

Advanced

Ultra Low NOx (ULN)

combustion system

Evolutionary 3D-

compressor blading

SGT5-8000H

designed for over 60% efficiency in combined cycle

Proven rotor design,

free radial thermal

expansion and

central tie rod

Integrated combined

cycle process

for economy and

low emissions

Four stage turbine with advanced

materials and thermal barrier

coating

> 60% Combined

Cycle efficiency


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SGT5-8000H: Siemens unique features

Vane 1 and Blade 1 removable through

combustor for short maintenance downtime

Turbine Vane Carrier has roll-in/out

capability to avoid rotor to ensure short

maintenance time

Directionally Solidified turbine blades with

thermal barrier coating and film cooling for

component longevity at reasonable cost

Hydraulic turbine blade tip clearance control

for baseload efficiency improvement

Hirth serration with single tie bolt for stiff &

light rotor and quick thermal response due

to internal flow passages allows for world

class fast start up and hot restart

capabilities

4 stages of fast acting variable-pitch guide

vanes (VGV) for improved part load

efficiency and high load transients

Siemens Energy

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Hydraulic Clearance Optimisation (HCO)

Hydraulic rotor shift by pistons behind the compressor thrust bearing pads

Clearances are designed for hot restart and are be reduced with HCO during operation

Fail safe design (!) and retrofitable performance increase due to higher

performance gain in turbine (conical flowpath) compared to loss in compressor (more linear flowpath)

HCO – view on pistonsTransient condition

after hot restart

Stationary condition,

clearance minimized by

HCO rotor movement

Cold

geometryStationary

condition

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SGT5-4000F Upgrade

Hydraulic Clearance Optimization

Test with constant fuel mass flow (fuel gas valve and IGV

locked) => Power increase when HCO is switched on

Essen, September 22-24 2010

Prepared for GDF Suez

Alstom Gas Turbines

GT development direction

VGB Congress

© ALSTOM 2010. 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 GT product development drivers

VGB Congress - Gas Turbine Developments - provided to GDF Suez - 1000922-24 - P 16

Performance with flexibility – for today and the future

Operating

Flexibility

Fuel

Flexibility

Environmental

Aspects

• Varying power demand

• Part load operation

• Overnight and weekend

shutdowns

• Changing fuel sources

• LNG

• Fuel quality

Operation within emission

permit levels

Output

Efficiency

RAM



Gas Turbine requirements Operational flexibility: responding to demand

SCPP and CCPP required to support demand variations. Renewables capacity growth will increase volatility

Power Plant load variation

Energy Mix

Industry

Private consumers


GT24/GT26 Development Direction

• Fuel Flexibility: LNG

• Fuel Flexibility: variation in gas composition

• Part-load performance

• Emissions

• Operation at low loads / fast ramp-up

• Lifetime extension

• Reliability




GT24/GT26 Development Fuel flexibility: natural gas composition

• High tolerance to gas

variations without

hardware changes:

- Wobbe Index

+/- 10%

- C2+ up to 16%

• Fast acting fuel

composition measurement

with on-line control

Continuous operation with significant gas variations

Wobbe Index (MJ/m3)

GT24/GT26

16

14

12

10

8

6

4

0

03 Oct

09

14 Nov

09

17 Oct

09

31 Oct

09

28 Nov

09

C2+ (%)

Typicalrange 5%

Jan'01 Jan'02 Jan'03 Jan'04 Jan'05

0

10

20

30

40

50



GT24/GT26 Development Part-Load performance

Evaluate part load efficiency!

KA24/KA26

Sequential Combustion Turbine

80%

85%

90%

95%

100%

40 50 60 70 80 90 100CCPP Load [%]

Rela

tive C

C G

ross E

ffic

ien

cy

Typical Single Combustion Turbine


GT24/GT26 Development Emissions on gas – clean combustion


Low NOx emissions from 100% down to 30%

10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Relative GT Load

NO

x E

mis

sio

n v

alu

es* GT26 NOx Emission

Typical Permit Level 25 ppm

Single CombustorEngine Characteristic

* vppm @ 15%O2, dry

** GT operation point depending on ambient conditions

LLOC Area**


GT24/GT26 Development Operational flexibility: Low Load Operation

• To date operators have had only two options during the

low/negative spark spread periods (typically night-time /

weekends):


– To de-load to the

minimum plant load

point where

emission regulations

are still maintained or

– To shut-down

The unique “Low Load Operating Capability” (LLOC) offers

increasing operational flexibility



GT24/GT26 Development Operational flexibility: Low Load Operation

SEV combustor offEV combustor

in lean premix mode

• Engine running with EV combustor only in lean premix mode - emissions

close to base load level

• Steam turbine stays in operation, combined cycle parked at around 20%

relative load

• Power reserve - normal CCPP loading instantly available

CCPP full load in less than 25 minutes



GT24 Development Operational flexibility & lifetime extension

On-line

switch

over

Lifetime Optimised

operation mode:

- Extended inspection intervals

32’000 EOH

- For stable demand periods

- Approx. - 2 to 3% power

output, minimal impact on

efficiency

Power Optimised

operation mode:

- Standard inspection intervals

28’000 EOH

- For high demand periods

One common hardware - two operation modes

Perfect for changing power market requirements

GT24



GT24/GT26 Development Reliability

GT24/GT26 F Class technology

GT24/GT26 ORAP RAM Values(12 Month Rolling Averages)

Source: SPS / ORAP Market Summary 1Q09 – 4Q09

90%

92%

94%

96%

98%

100%

CY09Q1 CY09Q2 CY09Q3 CY09Q4

Ansaldo EnergiaGas TurbinesUpgrades and developments highlights2010

Gas Turbines

Product Line

References as of December 2009

Model Units (op.) MW EOH

AE64.3 15 (15) 930 1,080,000

AE64.3A 21 (5) 1,430 200,000

AE94.2/.2K 81 (76) 13,032 3,250,000

AE94.3A 42 (30) 11,597 730,000

Total 159 (126) 26,989 5,260,000

Reliability > 98%

ModelRating

[MW]

AE64.3A 75

AE94.2

AE94.2K

170

170

AE94.3A 294(“F” class)

(“E” class)

(“F” class)

AE94.3A4 Evolution

Performance optimization

Enviromental impact reduction

Increasing in operating flexibility

Enhance availability and reliability

Upgrading life cycle of critical items

Maintenance activities improvement

After the Siemens License expiring date (October 2004) and based on itsown experience and specific needs of its customers, in the last few yearsAnsaldo Energia has continuosly upgraded its Gas Turbine with severalpackages allowing:

Continous Upgrading

AE94.3A4 Evolution Upgrading introduced after licence expiration

Major recent upgrading designed by AEN:

– VeloNOx™ burners to improve NOx emission from 50 to 30 mg/Nmc

– Reduction of Minimum Environmental Load

– Hydraulic IGV actuation system for frequency response (primary and secondary) according to European standard

– Life cycle analysis of all turbine B&V to improve power output, efficiency and/or to increase maintenance intervals

– Fogging system

– Flexible hoses for gas and oil on board distribution

– Introduction of new purging system for dual fuel machines

– Premix extension in the GT whole load range

AE94.3A4 Evolution Continous Upgrading

Fleet equipped with VeLoNOx™ burners to reach NOx

emissions < 30 mg/Nm3 :

– Moncalieri (AE94.3A4, new machine)

– Napoli (AE94.3A2, new machine)

– Vado 1 (AE94.3A2, retrofit)

– Priolo 2 (AE94.3A2, retrofit)

– Mantova 1(AE94.3A2, retrofit)

– Mantova 2 (AE94.3A2, retrofit)


The new High Pressure Purging allows dual fuel Gas Turbines to work with higher efficiency and stability, due to the fact that burners are always kept clean and free of any solid particles.

This system was patented by AEN, the innovative idea is to use a water-oil emulsion during the switch over phases to cool and wash the fuel oil premix burner.


Switch over to premix occurs during the GT start up phase: i.e. at full speed no load the GT is already in premix mode

Premix mode is maintained during all fuel gas operation (including load rejection, grid support, fuel change over, etc.)

This operation mode has been experienced for the first time on annular GT by AEN on its own AE64.3A in Terni.

AE94.3A Premix extension in the GT whole load range:

ADVANTAGES: No dead time due to burner switch over during loading/unloading Possibility to operate in island mode at any load

Very simple fuel system (easy operation and maintenance)

First Step in New Adventure…

2011+ improved AE94.3A4

+++ Power & Efficiency

+++ Flexibility

NOx@15ppm

2009 improved AE94.3A4

++ Power & Efficiency

++ Flexibility

NOx@15ppm

2008 AE94.3A4

+ Power

+ Efficiency

• TT @ 1250°C…Cooling

• Low NOx @15 ppm… Velonox

Series 2

• Flexibility…Minimal load @ 45%

Replacing HS with Centre

Unbladed Disks

Cooling Upgrades

Build New Product Platform…

2011+ improved AE94.3A4

+++ Power & Efficiency

+++ Flexibility

NOx@15ppm

2009 improved AE94.3A4

++ Power & Efficiency

++ Flexibility

NOx@15ppm

2008 AE94.3A4

+ Power

+ Efficiency

• TT @ 1250°C…Cooling & HGP

Redesign

• Low NOx @15 ppm… Velonox

Series 2

• Flexibility…Minimal load @ 45%

• +8% Mass Flow

• Replacing HS with Centre

Unbladed Disks

Cooling Upgrades

Siemens Energy

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3

5

MITSUBISHI HEAVY INDUSTRIES, LTD

August 2010

Current Developments for High CC Efficiency and Latest 50Hz

Gas Turbine Experience

T-Point Combined Cycle Plant

MHI Takasago Machinery Works,

Japan

This document contains information proprietary to Mitsubishi Power Systems, INC. It is submitted in confidence and is to be used solely for the purpose for

which it is furnished and returned upon request. This document and such information is not be reproduced, transmitted, disclosed or used otherwise in

whole or in part without the written authorization of Mitsubishi Power Systems, INC.

36

Outline

Design Approach (air or steam cooling)Air Cooled G Gas Turbine M501GAC

Need for higher CC efficiency Japanese National Project (Target 1,700 ºC T1T)

Mitsubishi’s latest developmentJ Series Gas Turbine (1,600 ºC Steam Cooled GT)

Current 50Hz Large Frame GTs M701G2 (measured CC η 59.3% ISO)

M701F4 (CC η 59.5% ISO)




Compressor

Same as G1

M501GAC (Steam to Air)

Combustor

Nozzle : Same as Latest G1

Swirler Holder : Same as Latest G1

Transition Piece : Improved Air Cooled

Turbine

T1c, T1s : Cooling flow adjustment with advanced TBC

T2c : Advanced TBC

T3s : Cooling Flow adjustment

T4s : Aerodynamics




38

CO2 Reduction

50% CO2 Reduction compared with Conventional Steam Turbine Plant

Conventional Steam Turbine

M501J GTCC

CO

2 E

mis

sio

n /

kw

h

-50%

Future GTCC

The need for High Efficiency




C/C Efficiency

Power Output

200

100

300

400

500

Po

wer

Ou

tpu

t (

MW

)

185

280312

465

F Series

334

498

399

267

G Series

114144

167

213

D Series

60Hz

50Hz

C/C

G/T

1200 1300 1400 1500 1600

50

55

60

TIT(℃)

C/C

Eff

icie

ncy (L

HV

%)

D Class

F Class

G Class

J Class

600

700

460

670

460

320

J Series

Combined Cycle

Performance Comparison

39

100º

C




Design Features of “J”

“J” Target : C/C efficiency : > 61% (M501J:460MW / M701J:

670MW)

High Pressure Ratio Compressor Experience from H Engine

Steam Cooled Combustor Experience from G Engine

Turbine Technologies from National Project

Validated H Compressor

- 23:1 pressure ratio

- 3D profile

- Improved inlet duct

Compressor

Proven G Combustor

- Well experienced ULN combustor

- Steam cooled liner

Combustor

Proven G Turbine

+ National Project technologies

- Advanced TBC + Cooling

- High efficient aerodynamic technology

- Cooled row4 blade

Turbine




41

In operation for 13 yearsAverage Actual Hours: 3,000/yearAverage Starts: 170/year

T-Point Combined Cycle Plant

MHI Takasago Machinery Works, Japan

The M501J will be tested at T-Point in 2011




42

Current 50Hz Offerings

M701G2 (Steam Cooled)

(measured CC η 59.3% ISO)

M701F4 (Air Cooled) (CC η 59.5% ISO)




4343

M701G2 (50Hz)

Additional Orders

Spain M701G2

3 x 1 on 1

Japan M701G2 (2013)

1 on 1

TEPCO Kawasaki Power Station Japan M701G2 3 x 1 on 1 (500MW )

2007, 2008, 2009

50 minutes from ignition to more than 98% load (hot condition)




44

M701F4 Main Features




45

Japan / Tohoku Electric Power CO. Unit NO.4, Sendai Thermal Power Station

Power Output

Gas Turbine 297 MW

Steam Turbine 149 MW

Total 446 MW

Configuration

Single-Shaft Configuration

1 GT + 1 HRSG + 1 ST

Status

Commercial Operation from July

29, 2010

Plant in Commercial Operation




4646

Summary

A 60Hz air cooled G is undergoing verification at T-Point under actual

operating condition.

Carbon Constrain Regulations will change the need for “high CC Efficiency “

A new J Class 1,600 ºC TIT Gas Turbine has been designed for higher C/C

efficiency (lower CO2 emissions). This incorporates:

compressor technology developed for MHI H class gas turbine

Technologies developed for Japanese National Project :

a) Advanced TBC

b) High cooling efficiency

c) High loading, High efficiency turbine

The M701G2 has demonstrated 59.3% CC Efficiency (ISO)

The first M701F4 reached full load and is being offered for 59.5 % CC

Efficiency.

Thank Youfor your attention.And thanks to the suppliersfor the information.

gdfsuez.com

b09_boon_gdf

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