Used steam turbines

Advantages of used turbines

One-stop-service @ WCE

Minimizing risks

Next steps

2-Feb-11, ChL2

Origin of the used turbines

• Europe• Germany

• France

• Italy

• Great Britain

• South Africa

• Middle east

Geographical

• Top brands• Siemens / KKK

• Alstom / ABB

• Mitsubishi

• GE

Brand

• Change of production

• Capacity

• Technology

• Uneconomical operation

• Change of Strategy

• Bankruptcy

Reason for availability

2-Feb-11, ChL3

Potential for used turbine

Need electricity

Back-up or lower costs

Need thermal energy

Steam, hot water

Have residues

EFB, Coconut shells, Sawdust,

etc…

HighHighest

Middle

2-Feb-11, ChL4

Used turbines: Financially advantagous

0

10

20

30

40

50

60

New top brand

New low cost

Used equipment

(as is)

Used equipment refurbished

Co

sts

in M

illio

n B

aht

Installation

Transport

Refurbishment

Equipment

Up to 40% savings!

Example 5 MW condensing steam turbine

2-Feb-11, ChL5

Used turbines: Quickly available

0 10 20 30 40

New equipment

Used equipment

6

6

12

12

18

2

0

4

3

3

Time in month

Project

EIA approval

Delivery time

Refurbishment

Installation

Save 1 year!

Used turbines allow fast track projects, allowing to produce electricity 1 year earlier!

2-Feb-11, ChL6

Used turbine: Quickly available

Calculation of the additional income:

][000'000'108

]/[7.2*][000'8*][000'5

Baht

kWhBahthkWIncome

More if you have disposal costs for the feeding

More if you can use thermal energy (steam / hot water)

Less if you have to pay for the feeding

2-Feb-11, ChL7

New <-> Used equipment

Security

CostsNew top-brand

Turbine

New low-cost Turbine

Used turbine(as is)

Refurbished Used Turbine

Security

(availability and

performance) has

a cost.

Refurbished used

turbine is a good

compromise

between security

and costs.

2-Feb-11, ChL8

New <-> Used equipment

Newequipment

Do you need?

Used equipment

High availability

Low costs

Quick solution

Full guarantee

High return on investment

High net present value (NPV)

2-Feb-11, ChL9

WCE: Your one stop service

Client

WCE /Lohrmann

EquipmentInspection Selection

Refurbish-ment

InstallationConstruction

Requirement / NeedProfessional advice

Your project Your project Your project

2-Feb-11, ChL10

WCE: Network

WCE1. One stop service2. Turn-key plant

(EPC)

Equipment:• Lohrmann• Other

Inspection &

Refurbishment:• Lohrmann• Sulzer, Wood, EGA

T, OEM (Siemens, Alstom,Mitsubishi, etc…)Construction &

Installation:• Supervision by

Lohrmann• Construction, Inst

allation and Commissioning by WCE

Engineering:• Existing plant• Lohrmann• Other Thai or

foreign

2-Feb-11, ChL11

WCE: Partner of Lohrmann

Cooperation agreement

• Lohrmann is the European leader for

used power equipment

• Over 20 years of experience in

relocating power plants

• Over 50 equipments available today• Steam and gas turbines

• Diesel and Gas Generator

• From 300 kW to 240 MW

• Collaboration with WCE on• Equipment inspection, selection and transport

• Refurbishment scope of work

• Installation & Commissioning

2-Feb-11, ChL12

Avoiding risks: Inspections

On site inspection by a specialist

Visual inspection Vibration analyze

Maintenance bookNon destructive testing

2-Feb-11, ChL13

Avoiding risks: Preventive maintenance

Refurbishing the only the combustor cans, the first stage nozzles and blades and the control system reduces the down time by 80%

0

5

10

15

20

25

30

Compressor Blades

Combustor Cans

First Stage Nozzles

First Stage Blades

Controls Bearings Seals Couplings Generator

Contribution of major components to gas turbine down time

2-Feb-11, ChL14

Life expectancy of turbines

Turbines from 1980 (2523) are still competitive and can be operated for 10 more years!

2-Feb-11, ChL15

Next steps

Understand requirements

Propose equipments

Select equipment

Inspect equipment

Decide about refurbishment

Dismount

Refurbish Installation Commissioning

2-Feb-11, ChL16

Applications: Palm oil mill

Boiler

Palm oil mill

Steam turbine

Empty fruit bunchesCondenser

Water

High pressure Steam Low pressure steam extraction

Pressure reducing valve

An extraction condensing turbine is producing electricity and steam at the required pressure level. In case of turbine down time, a pressure

reducing valve provides the steam for the palm oil mill.

2-Feb-11, ChL17

Applications: Palm oil mill

Advantages used turbine Disadvantages used turbine

Triple profit from the shorter delivery time:

• Production of electricity

• Substitution of expensive fuel through free biomass for the steam generation

• Costs for the disposal of the EFP

Lower turbine availability. However, the effect for the palm oil production can be neglected, because of the steam pressure reducing valve.

Reduction of the investment, thatcan be used for core business (palm oil production)

Lower efficiency, resulting in smaller electricity production.

2-Feb-11, ChL18

Applications: Fruit processing industry

Boiler

Fruitprocessing

line

Steam turbine

Processed fruitsCondenser

Water

High pressure Steam Low pressure steam extraction

Pressure reducing valve

An extraction condensing turbine is producing electricity and steam at the required pressure level. In case of turbine down time, a pressure

reducing valve provides the steam for the fruit processing line.

2-Feb-11, ChL19

Applications: Fruit processing industry

Advantages used turbine Disadvantages used turbine

Triple profit from the shorter delivery time:

• Production of electricity

• Substitution of expensive fuel through free biomass for the steam generation

• Costs for the disposal of theprocessed fruit

Lower turbine availability. However, the effect for the fruit processing line can be neglected, because of the steam pressure reducing valve.

Reduction of the investment, thatcan be used for core business (fruit processing)

Lower efficiency, resulting in smaller electricity production.

2-Feb-11, ChL20

Applications: Saw mill

Boiler

Sawmill

Steam turbine

Saw dust / Wood chips

Condenser

Water

High pressure Steam

An condensing turbine is producing electricity using the waste saw dust and wood chips.

2-Feb-11, ChL21

Applications: Saw mill

Advantages used turbine Disadvantages used turbine

Double profit from the shorter delivery time:

• Production of electricity

• Costs for the disposal of the saw dust / wood chips

Lower turbine availability. However, as sawdust and wood chips can be stored easily, availability is not the most important matter.

Reduction of the investment, thatcan be used for core business (palm oil production)

Lower efficiency, resulting in smaller electricity production.

2-Feb-11, ChL22

Applications: Steam demanding industry

A gas turbine is producing electricity and hot waste gases that are used in a downstream steam generator. In order to achieve a high

availability, a steam boiler is installed in parallel to the steam generator.

Industrial process

Gas turbine

Steam generator

Exhaust gas Steam

Steam boiler

2-Feb-11, ChL23

Applications: Steam demanding industry

Why install a gas

turbine?• The overall costs for the steam

generation are lower:• The cogeneration of electricity

generates income (blue) that are

higher than the capital costs

(orange), the maintenance costs

(violet) and the overconsumption

of natural gas (red).

• The gas turbine can be used

as power backup system. LegendPrimary fuel cost Electricity earningCapital costs gas turbine Maintenance costs

2-Feb-11, ChL24

Applications: Steam demanding industry

Advantages used turbine Disadvantages used turbine

The shorter delivery time results in a earlier earning (saving) from the electricity production.

Lower turbine availability. However, it makes anyway sense to install a traditional boiler as back-up. Finally the lower availability has little impact on the profit.

Reduction of the investment, thatcan be used for core business. As the gas turbine is by far the most expensive equipment, a lower price has an important impact on the bottom line of the project.

Lower efficiency, resulting in smaller electricity production.