PowerGen Middle East 2012 Doha High-Efficient-Peak-Power-On-Demand Beiler.

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January 2012 Jan Beiler / Peter Trauner Energy Sector / Services AL: N ECCN: N

Siemens AG 2011. All rights reserved.

High Efficient Peak

Power on DemandPOWER-GEN Middle East, February 6-8, 2012,

Qatar, Doha

Jan Dirk Beiler

Senior Performance Engineer

Development Lead for Wet Compression

Modernization and Upgrade Engineering

Peter Trauner

Head of Performance Increase

Advanced 50Hz Frames



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High Efficient Peak Power on Demand

Power-Gen Middle East 2012

High efficient

Peak Power on demand

Jan Dirk Beiler

Senior Performance EngineerDevelopment Lead for Wet Compression

on 50Hz Service Frames


Peter Trauner

Head of Marketing

Performance Increase for


Contents

Need for power on demand

Wet Compression description

Performance benefits

Experiences

Conclusion


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Wet Compression

Need for Power on Demand

Rising need for

power on demand

Solutions for

flexible power on demand

Backup power needed

High flexibility

Power need for

seasonal or

daily peak time

Gas turbine plants

Modernizations and upgrades

for existing plants

?


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High efficient


Jan Dirk Beiler




Peter Trauner

Head of Marketing



Contents




Experiences

Conclusion


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Wet Compression Short Introduction


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Wet Compression Hardware Scope


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High efficient


Jan Dirk Beiler




Peter Trauner

Head of Marketing



Contents




Experiences

Conclusion


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Wet Compression Peak Power on Demand

0

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20

10 15 20 25 30 35 40 45 50

Ambient temperature [C]

PowerincreasebyWet

Compression[%ofbaseloadpower]

Shaft lim

itreache

d Maximumm

ass flow(design)

75%ofdesign massflo

w

50%ofdesignmass flow

Minimum mass flow (start

)

0

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10 15 20 25 30 35 40 45 50

Ambient temperature [C]

PowerincreasebyWet

Compression[%ofbaseloadpower]

Shaft lim

itreache

d Maximumm

ass flow(design)

75%ofdesign massflo

w

50%ofdesignmass flow

Minimum mass flow (start

)

Limits to the performance

Electrical components

Combustion stability

Shaft limit (mechanical)

Auxiliary systems

Hardware configuration

Surge limits

Maximum power increase

has to be evaluated sitespecific

Flexible reaction on power demand

Stepless power adjustment within operation range

High reserve power potential


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Performance SGT5-4000F

First Time Implementation

Startmassflow

Gas turbine delta power output with Wet Compression:

Up to 16% of base load power

Gas turbine delta efficiency with Wet Compression:Up to 2.1% of base load efficiency

Water mass flow :

Up to 10.2 kg/s

Wet Compression

performance

measured at first

time application for

SGT5-4000F

@ 30C, 60% r.H.


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Wet Compression - Influence of Relative Humidity

Example:

Variation of humidity at 30C

ambient temperature

Comparison between inlet cooling

and Wet Compression

(calculation for SGT5-2000E)

Wet Compression isonly little affected by

humid air conditions


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High efficient


Jan Dirk Beiler




Peter Trauner

Head of Marketing



Contents




Experiences

Conclusion


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5 x SGT5-2000E

3 x SGT5-4000F

2 x SGT5-4000F

6 x SGT5-4000F (planned)

More than 35 x on

following frame types:

SGT6-2000E

SGT6-3000E

SGT6-5000F

4 x SGT5-4000F (Grid)

2 x SGT5-2000E

2 x SGT5-4000F (Grid)

Experiences

Wet Compression systems are running

more than 50 x worldwide:


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Gas Turbine Safety using Wet Compression

Gas turbine

safety

Specific

CFD-calculation to

optimize the sprayrack

Advanced

compressor coating

to minimizecorrosion

Integrated safety

functions to ensure

operation within

expectations

Optimizedoperation regimes

to minimize effects

3-staged filter

concept

Fully integration inthe gas turbine

control


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Operation Experience Compressor

Operation experience with Wet Compression

on SGT5-2000E since 2004 :

No pitting corrosion could be found atSGT5-2000E

Coating loss on the leading edge and on thepressure side, but coating stays intact in the

areas where salt residuals are left on the

blades and vanes

The leading edge gets rougher (needle

structure) but no significant shortening of the

blade width by erosion

No tendency to pitting corrosion

Lasting corrosion protection

Base blade material not weakened


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High efficient


Jan Dirk Beiler




Peter Trauner

Head of Marketing



Contents




Experiences

Conclusion


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Siemens Gas Turbine Modernization

SGT5-4000F Wet Compression

Higher operational flexibility

Wet C gives you additional electricity of up to 75,000 MWh/year.

Assumption: 30MW power improvement, peak load operation (250 days/ year, 10 h/day)

Customer needs in general

Power Efficiency

Reliability & availability

Operational flexibility

Reduction of maintenance costs

Emission reduction

Up to 30 MW power output improvement * Power on demand

Benefits can include:

* Subject to specific technical plant evaluation,

expected values with test tolerance @ ISO condition.


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Thank you for your attention

Jan Dirk BeilerSenior Performance Engineer

Development Lead for Wet Compression


Peter Trauner

Head of Marketing




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Disclaimer

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assume any obligation to update or revise these forward-looking statements in light of developments which differ from

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