„Heat and Power Generation With Renewable Energy“, · Siemens pre-designed turbines in order to...

„Heat and Power Generation

With Renewable Energy“,

Dublin

17 – 19 May 2011

Experience in Europe with small-scale industrial steam

turbines in decentralised power plants

Mr. Christoph Frey

May 2011 Energy Sector

Copyright © Siemens AG 2011. All rights reserved.

Christoph Frey

Development of

Siemens Turbomachinery Equipment GmbH

Sale of

turbocharger

division to a

subsidiary of

BorgWarner

Acquisition of

Schiele-PGW

Turbomaschinen

from Deutsche

Steinzeug

German Equity

Partners Funds and

management acquire a

>95% stake in AG

KK&K from BorgWarner

Foundation of

AG KK&K by

merging three

family-owned

businesses and

going public

shortly thereafter

BorgWarner

purchases a

63% stake in

AG KK&K

from Penske

Acquisition of

HV-Turbo from

NTR-Holding

Acquisition of

Babcock

Borsig’s

Turbo-

Lufttechnik (TLT)

2005

18991997

19981999

20002003

2006/2007

Siemens

Turbomachinery

Equipment GmbH



Christoph Frey

A Comprehensive Steam Turbine Portfolio

Siemens industrial

steam turbines

5 to 200 MW

Siemens

predesigned steam

turbines

45 kW to 10 MW

Siemens utility

steam turbines

200 to 1 900 MW



Christoph Frey

Producer of Pumps, Compressors …

IPP / Contracting / Engineering

Energy-from-waste plants

Utilities

Smelters / Steel

Wood / Paper

Chemistry

Petrochemistry / Refineries

Food

Sugar / Palmoil

Ship / Offshore

Main applications

Customers and Applications

Our customers

Waste-to-energy

Mechanical Drives

Biomass

Cogen / CHP

Heat-recovery

Gas expansion

Geothermal plants / ORC



Christoph Frey

Live steam pressure:

Live steam temperature:

Exhaust steam pressure:

Speed:

Power:

3 – 131 bar_a

dry sat. - 530°C

0.08 – 29 bar_a

500 – 23 000 1/min

up to 10 000 kW

Basic Technical Values



Christoph Frey

Operating Principle: Steam Flow

Steam flow: SST-060 (AFA / CFR / Condensing Module)



Christoph Frey

Pre-designed Steam Turbines

Product Lines

SST-050

up to 2 000 kW

SST-060

(AFA, CFR)

up to 5 000 kW

SST-110

(TWIN)

up to 7 000 kW

SST-120

(TANDEM)

up to 10 000 kW

The STE Steam Turbines complete the

E O IP portfolio in the lower power range

from 45 kW up to 10 MW

G G



Christoph Frey

Products & Markets

Increasing prices of fossil fuels

Global warming

Political pressure on use of renewable energy

Increasing demand for electricity

Unused energy sources

Benefits of decentralised plants

Satisfy own demands for electricty and process steam

Take advantage of own energy sources like heat, biomass or waste

Fuel from own industrial plant or the immediate vicinity avoid transport cost and

logistic problems

Independence of the national electricty grid

As a matter of fact the interest in such decentral power plants is increasing.

Decentralised plants



Christoph Frey

Products & Markets

Easy integration in the plant and the process

Operation with ordinary steam parameters / minimised peripheral equipment necessary

Pre-tested and ready-for-use for short erection and commissioning time

Low investment costs

High reliability

Simple operation which results in low personnel costs

Low operating costs

Design considers future duty changes Low revamp costs

Siemens pre-designed turbines in order to satisfy these criteria.

Turbine requirements



Christoph Frey

Power

generation from

biomass

(Miscanthus) in

Great Britain

SST-110

(TWIN-CA 36)

Operating data:

Live steam pressure: 41.0 bar a

Live steam temperature: 450°C

Condensing pressure: 0.1 bar a

Electrical output: 2 650 kWe

Products & markets

SST-110 (TWIN)

Condensationsystem

Live steam

Pressure

controlled

extraction

HP –Turbine

LP –Turbine



Christoph Frey

Products & markets

SST-110 (TWIN) example

Eccleshall Biomass Farming for energy is a proposal for a 2

megawatt power plant for the generation of electricity fuelled by

energy crops. This is enough to run 2000 average households.

The main fuel, miscanthus (pictured) will be grown locally offering

diversification opportunities and long term fuel supply contracts for up to

60 farms. A local Growers Group has already been established to co-

ordinate fuel supply.

Miscanthus is a non-invasive, sterile, perennial grass grown and

harvested on local farms within a 25 mile radius of the plant.

The Biomass Power Plant is designed to ensure there will be no

additional noise nuisance above existing background noise during 24

hour operation.

Emissions have been voluntarily set to a higher standard than the

regulatory requirements for air quality. There will be no visible steam

pump or odour emitted from the stack and performance will be

monitored by Stafford Borough Council.

The plant saves 1 tonne per hour of CO2 which would be emitted

generating electricity from fossil fuel.



Christoph Frey

New development: SST-040 MINI-TURBINE as generator-drive

Power output: 75 – 300 kW

Inlet pressure: 4 – 40 bar (a)

Inlet temperature: dry sat. up to 400°C

Exhaust pressure: 0,2 – 7 bar (a)

Applications: Heath recovery

Small CHP plants

Solar Thermal plants

Features: Low-maintenance

Extremly failure safe

Compact design

Quick-start compatible

Short delivery time

Dimensions: Length 2,5 m

Width 1,9 m

Height 2,0 m



Christoph Frey

Features of the Pre-designed – Steam Turbines

• Backpressure or condensing type

• Package unit design

• Oil unit integrated in base frame

• Nozzle group control valves available

• Optimized part load behavior

• Quick-start without pre-heating

• Tailor made

• ATEX version available

• Suitable for gas expansion

• Extremly robust design especially with high wetness in exhaust or uncleaned steam

• fast reparing

• Meet requirements of API 611 / 612*

*if overhung design and integral gear is accepted

• vertical / horizontal assembly

• Suitable for ORC (Organic Rankine Cycle)



Christoph Frey

Thank you for your attention!

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