Water Power and Dam Construction

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FLOOD MANAGEMENT

CLIMATE CHANGE

Although ﬂood defence is a familiar

problem in the UK climate change

will make the issue far more important.

New and expanded solutions w ill be

needed, as Karl Hall reports

Although ﬂood defence is a familiar

problem in the UK, climate change

will make the issue far more important.

New and expanded solutions w ill be

needed, as Karl Hall reports

Hydro power Chinese style

UK gets defensive

on flooding

UK gets defensive

on flooding

Turbine developments in Cuba

I N T E R N A T I O N A L

& DAM CONSTRUCTION

WWW.CON NECTI NGPOW ER.CO M

JANUA RY 20 03

Hydro power Chinese style

Water Power

The number one subscription journal for the dams and hydro power industry

FLOOD MANAGEMENT

CLIMATE CHANGE

The pathways for ﬂooding are generally by river (ﬂuvial) ﬂood-

ing, coastal, high groundwater levels and snowmelt. Sometimes there

can be a combination of factors, for instance in coastal areas where

ahigh tide combined with high ﬂuvial ﬂows and storm surge creates

anunusually high water level, causing problems at both the tidal

and inter-tidal zones.

What makes matters worse for the UK (although as we have seen

from the summer ﬂoods in Europe, the problem is a global one) is

the large amount of urban development carried out in ﬂood plain

areas. Current estimates place up to ﬁve million people at risk from

river and coastal ﬂooding, with 10,000km

of land at risk from river

ﬂooding. Rising sea levels will only worsen the scenario, as many of

the world’s major cities lie in coastal areas. London is an interest-

ing example, and although it is considered quite well defended at

the moment, the future situation may be rather different.

Models have been formulated and estimates for future increased

dimensions of the Thames assume there is a risk of inundation of

parts of Hammersmith and the Victoria Embankment, Greenwich

Peninsula and large areas of the lower Thames valley, in all some

125 km2. Other cities at risk from rising sea levels include Cardiff,

Swansea,Bristol, Grimsby and Hull. At the moment there are no

models that will deﬁnitively predict future effects from rising sea

levels, but it has been estimated that average global sea levels could

rise by between 10cm and 20cm by the year 2100.

For the UK, the Intergovernmental Panel for Climate Change has

predicteda 30cm rise over the next 50 years. As a result, defence

heights will have to be raised to the tune of up to 6mm per year. The

effects will not be constant and some areas of the UK will see more

dramatic effects than others. In Scotland, for instance, sea levels have

risen at Aberdeen by 70mm since 1900 an d many parts of the

Scottish coast are now at risk from coastal ﬂooding, particularly

below the 5m contour. In Scotland alone 93,000 properties are at

risk from coastal ﬂooding, and 77,000 from inland ﬂooding.

Some countries are now considering an alternative approach to

ﬂood management. Initiatives such as the Rhine Action Plan adopt,

in principle, alternative strategies that in clude widening existing

ﬂood plains in conjunction with conveyance methodologies.

Factors affecting the UK include:

•Climate change and increasingly unpredictable rainfall patterns.

•Extensive coastline to all sides.

•Increased run-off from land due to agricultural practices and

increasing urbanisation.

•Long tidal rivers (Humber/Trent, Severn etc).

•Downward land tilt to some areas.

•Inadequate or poorly maintained existing drainage.

•Under-investment in ﬂood protection schemes.

•Large catchment areas into some rivers.

•Difﬁculty in analysing the probability of severe weather events.

Accepting that there is little that can be done to reduce the future

risk of ﬂooding (although the Rio Earth Summit and Kyoto Protocol

were intended to mitigate the worsening climate situation by reduc-

tions in greenhouse gas emissions), then a sustainable ﬂood man-

agement strategy can at least reduce its effects. Such a strategy may

include a combination of factors: reducing building on ﬂood plains;

installing additional ﬂood defence measures; reforesting upland

areas; and allowing wider ﬂood plains.

Implementing effective, integrated ﬂood defence schemes requires

aconsidered approach, taking into account the long term effective-

ness of planned measures with regard to capital cost, disruption to

amenities and townscapes, downstream effects and maintenance. A

factor that is bound to compromise future ﬂood management is the

inexorable rise in demand for housing. Much of this demand is cen-

tred on land that lies in ﬂood plains near to existing major centres

of population and industry. Unfortunately, some of the ‘brown’

(industrial) land that the Government is insisting be re-used is also

within ﬂood plains, immediately creating a conﬂict in those areas.

It is however still early days and new planning guidance (designat-

ed PPG25 and currently being developed) may help balance the

needs of developers and land users.

An effective ﬂood protection scheme must consider factors includ-

ing: the morphology of local rivers; the likely effectiveness of engi-

neered ﬂood defences; the downstrea m effects from the

implementation of engineered defences; and the socio-economic ben-

eﬁts that would be derived from such defences.

At present, signiﬁcant amounts of public money are spent each

year in simply maintaining ex isting defences, but many of these

defences are either nearing the end of their effective lives or will be

inadequate to cater for more severe ﬂoods in future. The UK’s

National Audit Ofﬁce estimates that up to 40% of existing hard-

engineered defences are in fair, poor or very poor condition (those

classiﬁed as ‘very poor’ may be considered as derelict or failed, these

representing 165 km of defences).

Although the government has already pledged additional capital

resources for ﬂood defence, under the Comprehensive Spending

Review, additional investment is needed to stop long-term decline

of the defences.

For coastal areas, a separate strategy may be appropriate, and

shoreline management plans assess the balance of factors in terms

of producing ‘sustainable policies for the coastal defence of our

shorelines taking into account natural coastal processes and issues

relating to the environment and human needs’. Coastal effects can

be difﬁcult to model, because alluvial morphodynamics have no real

‘equilibrium’ state – what is put into effect today may be less effec-

tive in future years as natural processes take effect. There is no better

illustration of this than the east coast, where loss of land is a con-

tinuous process and ﬂooding a regular event.

Intervention can have unpredictable results. Providing hard-engi-

neered defences to one part of the coast can lead to the denuding of

sedimentat adjacent coastal areas, requiring additional defences.

Current government thinking tends towards a less-interventionist

approach, allowing natural processes to take their course (‘managed

realignment’), although this is not likely to impress the population

in these vulnerable areas unless the government introduces appro-

priate compensation.

There is understandably a good deal of consternation in the public

domain that can only be allayed by appropriate action from gov-

ernment, but it is encouraging to observe that the issues are now seen

as requiring a committed long-term strategy. Whatever the effects of

weather and climate turn out to be in the next hundred years, the

formulating and instigation of effective ﬂood defence schemes will

require major political will, planning and investment, based on an

holistic approach.

Bauer Inner City Limited, Bauer House,

Woodrow Way, Fairhills Industrial Estate, Irlam,

Manchester M44 6ZQ, UK

IWP

Above left: Continuous perimeter Bauer-IBS Flood Defence System protecting

European town. Right: Bauer-IBS system in full perimeter protection to town

physical degradation of arable land, with increased run off from

dried-out encrusted areas or saturated land. There may also be inde-

terminable natural factors at work which are inﬂuencing climate

change and climatic ‘surprises’ such as changes in ocean currents,

which could promote further unpredictability.

Assumptions about future climate patterns are, however, a complex

matter, and the UK has undertaken much research in this area. The

result is a range of predictive climatological models developed by the

Meteorological Ofﬁce’s Hadley Centre under the auspices of the

UKCIP. These assume a range of effects, based on various levels of

greenhouse gas emissions, but whichever yardsticks are taken (low,

medium low, medium-high or high, where medium-high, for instance,

assumes a 1% per annum increase in CO

emissions), the outlook is

not favourable, and wetter winters and drier summers are predicted.

There is additionally the problem of predictive conﬁdence, and whilst

global mean temperatures and CO

levels are considered relatively pre-

dictable, factors such as climatic and regional variability are less so.

The difference between low and high predictions is very wide – it

could be as much as 20% – so there is an imperative for more accu-

rate research and modelling. The problem in accurate forecasting

stems from the fact that a majority of existing data is based on his-

toric records and it is widely accepted that this is well out of date.

Interpolations derived from existing data are therefore inappropri-

ate, as this would assume that the probability of a given rainfall event

can be calculated and preventive actions can be taken. From this

methodology, we would ﬁnd that the only resolution is to design

schemes to a probability of the worst case occurring approaching

zero, which would result in substantially over-engineered designs.

FLOOD MANAGEMENT

CLIMATE CHANGE

NEW FORM

LOODING is not a new problem for the UK, and being a nat-

ural occurrence it will always be with us. But it is currently

the frequency and severity of signiﬁcant ﬂood events that are

focusing attention on the issue, together with the real concern

that future climate patterns will worsen the outlook.

Inland ﬂooding is generally the result of high rates of run-off from

land, occasioned by intense local rainfall or by longer-term heavy

rain. Most people in the UK remember the 2 000 ﬂoods as being

notably bad: it was the wettest autumn since records began and

resulted in wide-scale inundation as defences were overtopped or

breached, and drainage systems overwhelmed. Around 10,000 prop-

erties were ﬂooded. These ﬂoods were in some areas 1 in 200 year

events (ﬂood levels that would normally be considered as having a

0.5% chance of occurring), but the frequency of 100 or 200 year

events is now increasing. Unfortunately, the historic nature of urban

development has biased it towards rivers so many cities are now at

considerable risk of regular and damaging ﬂooding.

Hard-engineered (and therefore expensive) solutions appear to be

the only options for alleviation, at least in the short term. This phi-

losophy follows on from most previous thinking, which endeav-

oured to channel high-velocity ﬂood water and discharge it to the

sea in the shortest time. Although the thinking is understandable,

this method of ﬂood management has actually mad e some areas

more vulnerable to severe ﬂooding at little warning.

Research suggests that by the 2080s, winter rainfall may increase

by up to 30%, with potential for greater incidence of ﬂooding. At

the same time, summer rainfall could decrease by up to 50%, par-

ticularly in the south. As the world climate becomes warmer, greater

levels of evaporation in summer months may be translated into

increasedrainfall and perhaps also at times later in the year than

was previously expected. There are additional factors involved, in a

sometimes complex combination of events that include large-scale

in a

Aboveleft: View of full height Bauer-IBS Flood Defence System; Above middle:

Bauer-IBS Flood Defence System providing perimeter town defence; Above right:

Compositetown defence with dwarf wall and Bauer-IBS Flood Defence System

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NEW TECHNOLOGY

designed for the forces arising from the lid (and loading applied to

it in both dormant and mobilised conditions) and the surrounding

ground. On the floor of the trench a steel angle carries the continu-

ous horizontal seal. Drainage from both wet and dry side s of the

trench is catered for, with non-return valves on the dry side. Railings

can be provided for personal protection in the area of the trench on

the wet side.

The lid, which may be concret e, steel, hybrid or an alternative

material, is designed to take loading conditions associated with the

dormant state as a path or roadway and the mobilised state under

N 2003, after yet another flood disaster in the UK, civil engi-

neer John Forrest decided to look into harnessing gravity to help

provide an effective flood defence. The result was a trench with

a counterbalanced tilting lid where gravity did all the work in

mobilisation and keeping the flood at bay. From being a path or

roadway in the dormant state, the lid would be rotated manually

through 90 degrees to form a wall. Tilt-Dam was born. This per-

manent in-situ demountable solution can be considered where fixed

flood defences are deemed inappropriate, or may also be used to add

to the height of a fixed defence.

The following year, Forrest presented his concept to a peer group

at the Institution of Civil Engineers (ICE) and was awarded devel-

opment funding by the Research and Enabling Fund at ICE. This

allowed development work to proceed, resulting in an established

design and a full scale dry prototype demonstration unit being fab-

ricated at the Building Research Establishment (BRE) at Watford.

In March 2005, Tilt-Dam was launched on the market with a pre-

sentation at ICE headquarters in London. This was followed by fur-

ther presentations to organisations involved in flood defence (such

as the Environment Agency, consulting engineers and contractors).

Much of this was based around a full size wet prototype (two units

each 2.8m wide for a 1.2m flood depth), installed at Lea Marston

in the Midlands. This was used to provide inspection and demon-

stration for interest e d parties and included f lo o d conditions with

dynamic loading.

In 2008, as a result of ongoing innovation and system develop-

ment, Spring Dam has now arrived on the scene. The same princi-

ples are reta ined, but with ad ded signif icant econ omic benef its

including minimum ground penetration (ie no trench), better load

carrying capacity, lighter lids plus easier access for inspection, main-

tenance a nd cleaning a fter a flood. At lic ensed cont ractor,

Littlehampton Welding, a full scale Spring Dam has been designed,

fabricated and subjected to wet testing. This unit is 3m long and

1.5m high, which is the related floo d depth, and is available for

inspection and demonstration.

ESIGN PRINCIPLES

The fundamental design principles for these demountable systems,

where pe rmanent walls (or bunds) are i nappropriate or a ccess is

required through them, are:

• Reliability and longevity – permanently available in-situ over a 50-

year life.

• Safety – provides operational and public safety in both active and

dormant states.

• Simplicity – design uses gravitational forces for manual operation

and water sealing.

• Robu stness – heav y duty conven tional structural materials

designed for static and dynamic loading conditions.

• Rapid mobilisation – vital for demountable flood defence coupled

with short warning times. Two people can mobilise at one metre

per minute.

• Ease of inspection and maintenance – has only two moving parts,

bearings and locks, and uses long life seals.

The Tilt-Dam system consists of two main elements, a trench and

a lid. The trench, in reinforced concrete, is set below ground level,

Tilt-Dam springs to the challenge

40 x 40 5RSA

edge

40 x 40

5RSA

edge

15 x 5 thick

flat edge

to lid

Rubber seal

Catch for

lock detail

150 x 75 PFC fixed to slab

Pivot block Ex

75 x 50 x 125 long

Prop detail

Concrete slab

Lid frame formed

from PFC

Spring Dam and Tilt-Dam provide a simple

but effective civil engineering contribution

to meeting the challenge of flood defence

here

Spring dam test unit

Spring Dam cross section

Torsion springs on the spring dam

after mobilisation and the dry side trench wall. These props allow the

horizontal seal to be compressed before the flood water continues this

process and they also provide additional stability to the system. The

props and vertical seals are stored on the underside of the lids. Should

leakage occur, or the dam become overtopped, then pumping from

the dry side trench can be undertaken using standby equipment.

For Spring Dam the lid is set in a frame, using either steel or alu-

minium, supported on a concrete slab at ground level. There is now

no trench required, since the lid is hinged at one end as opposed at

the one third point for Tilt-Dam. The gravitational power for mobil-

water pressure. The most important feature here is the level of the

bearings (just above one third of the height of the dam) which

ensures that the water pressure keeps the dam closed in flood mode,

and also determines the weight of the counterbalance. The lateral

edges of the lids have channels to house the vertical seals between

adjacent units. Unit length is determined principally by the weight

of the lids arising from the flood depth to be catered for. Each lid

has two locks, securing it to the trench below, operated by a special

key, the only item of the system not in-situ.

Props are available for assembly between the top of the vertical lid

WWW.WATERPOWERMAGAZINE.COM MARCH 2009 43

NEW TECHNOLOGY

Diagrammatic cross section of Tilt-Dam Cur ved run of Spring Dam

Elevated Tilt-Dam installation in Sheffield, UK

44 MARCH 2009 INTERNATIONAL WATER POWER & DAM CONSTRUCTION

isation is now delivered through energy stored in torsion springs, on

the hinge line, which are energised by the weight of the lid when it

is lowered from the vertical. Hence, as for Tilt-Dam, the process is

a quick and simple manual exercise. Once again the system is self

contained in-situ. Here, however, the loading from the water pres-

sure in flood mode is resisted purely by the props. The seal config-

uration and operation is similar to Tilt-Dam with the horizontal seal

in a recess in the concrete ground slab.

In the ground below either system, piled (or equivalent) support

may be required if the allowable ground bearing pressure is inade-

quate. In addition, but complementary to the design of this surface

based flood defence, a cut off may be required in porous ground.

The lower flood depth limit is around 0.5m and in theory there is

no maximum, but in practice there is a limit brought about by adher-

ing to the principles. Beyond a 2m flood depth, for both Spring Dam

and Tilt-Dam, the principle of simplicity will begin to be compro-

mised with regard to the simple manual assembly of props and ver-

tical seals. Two metres, however, covers a very high proportion of

flood cas es likely to be considered. In addition, due to the one

third/two thirds design criteria in relation to the water pressure dia-

gram for Tilt-Dam, for every one unit of flood depth upwards the

trench must go an extra half a unit downwards. Hence at a 2m flood

depth the ground excavation is over 1m deep (allowing for the

trench base). Flood depths over 2m can nevertheless be catered for.

Automation has been considered but not generally recommend-

ed for various reasons. First of all there is reliability, where human

intervention is seen to be more appropriate and indeed probab ly

more reliable, considering the potentially large intervals between

mobilisations. Secondly, there is added cost and complexity, followed

by potential injury or damage caused when a piece of infrastructure

suddenly rotates through 9 0 degrees even if automatic warnings

were to be included.

PPLICATION

The systems can be used as front line protection against fluvial or sur-

face water flooding and as a secondary system in coastal locations.

They can be either a single opening for access through a fixed

wall/bund or a sequence of units forming any length of defence along

say a river bank or around a property or an industrial installation.

Tilt-Dam can only be installed in straight lines and hence change of

direction is achieved using a fixed element such as a pillar or section

of wall. Spring Dam can cater for curved alignments (either concave

or convex) such as a river bank, since the bearings are now at one

end of the lids and adjacent units can be rotated without clashing.

Both systems are considered to have many benefits, including: no

permanent wall/bund to obscure views or sight lines; allows access

which is then easily closed off at flood warning; no offsite storage

requirements and costs; no transportation risks or costs; no risks

of damage or loss of items in handling or assembly; protected below

ground in the dormant state; quick and easy mob ilisation; envi-

ronmental acceptance including upper sur face int egrated wit h

surroundings.

For further information contact Jim Barrack, Director,

Tilt-Dam Ltd, jim@tiltdam.co.uk

NEW TECHNOLOGY

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46 MARCH 2009 INTERNATIONAL WATER POWER & DAM CONSTRUCTION

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# (47) 67 53 15 06 in Norway

# (55) 11 3722 0889 in Brazil

E-mail: nickrbarton@hotmail.com

Website: http//www.qtbm.com

35 years experience from more than 30 countries

AF-Colenco Ltd

Täfernstrasse 26 • CH-5405 Baden/Switzerland

Phone +41 (0)56 483 12 12 • Fax +41 (0)56 483 17 99

olenco-info@afconsult.com • http://www.af-colenco.com

Consulting / Engineering and EPC Services for:

• Hydropower Plants

• Dams and Reservoirs

• Hydraulic Structures

• Hydraulic Steel Structures

• Geotechnics and Foundations

• Electrical / Mechanical Equipment

formerly

Electrowatt-Ekono and Verbundplan

Hydropower and Water Management with Worldwide

Experience and Local Presence

Pöyry Energy Ltd., Hardturmstrasse 161, P.O. Box, CH-8037 Zurich, Switzerland

Tel +41 44 355 55 54, Fax +41 355 55 56, www.poyry.com

Pöyry Energy GmbH, Laar-Berg-Strasse 43, A-1100 Vienna, Austria

Tel +43 50 313 22 586, Fax +43 50 31 31 65, www.poyry.com

PROFESSIONAL DIRECTORY

WWW.WATERPOWERMAGAZINE.COM MARCH 2009 47

CLASSIFIED

www.waterpowermagazine.com

Yolsu Engineering Services Ltd. Co.

Hürriyet Caddesi No:135 Dikmen, 06450 Ankara,TURKEY

Tel: +90 312 480 06 01 (pbx) Fax: +90 312 483 31 35

www.yolsu.com.tr info@yolsu.com.tr

Prefeasibilty, Feasibility,

Final & Detail Design,

Consulting Services:

• Basin development

• Dams and hydropower plants

• Irrigation and drainage

• Water supply and sewerage

• River engineering

• Highways and railways

Construction Technique for Dams and Water Passageways

pilways - Piers, Walls and Chute Slab;

Power Houses - Pillars, Walls and Outlets;

Water Intakes - Pillars, Shafts.

Contact:

tecbarragem.com.br

tecbarragem@tecbarragem.com.br

Brazil: +55 11. 5181. 2527

......SSUUPPPPOORRTTIINNGG AANNDD

CCOOOOPPEERRAATTIINNGG IINN

CCOONNSSTTRRUUCC TTIIOONN......

Stellba Hydro AG Stellba Hydro GmbH & Co KG

Langgas 2 Badenbergstrasse 30

CH-5244 Birrhard D-89520 Heidenheim

Switzerland Germany

Telefon +41 (0)56 201 45 20 Telefon +49 (0)7321 96 92 0

Telefax +41 (0)56 201 45 21 Telefax +49 (0)7321 6 20 73

Internet www.stellba-hydro.ch Internet www.stellba.de

E-Mail info@stellba-hydro.ch E-Mail info@stellba.de

USE WWW.WATERPOWERMAGAZINE.COM TO DRIVE CUSTOMERS TO YOUR SITE

Have you seen

our website?

Active links

File hosting

Contact

Content

Multi-layered “microsite” at waterpowermagazine.com

12 months on-line advertising for the price of a

single full page ad!! £2500

COMPANY PROFILE

In the last six months, an average of 32,527 unique users did!!

With an average of 32,527 unique users visiting www.waterpowermagazine.com and 287,846 page impressions displayed over

the last 6 months, NOW is the time to make the most of this superb opportunity to showcase your company to the world-wide

hydro industry in the most dynamic and cost effective way possible.

WORLD MARKETPLACE

48 MARCH 2009 INTERNATIONAL WATER POWER & DAM CONSTRUCTION

CLASSIFIED

www.waterpowermagazine.com

CYLINDERS

Rexroth

Bosch Group

Bosch Rexroth B.V.

Cylinders

Application based standard cylinder designs for;

radial gates, rol ler and slide gates, butterfly and

ball valves, turbi ne regulation, navigational locks

and movable bridges.

Bosch Rexroth B.V.

Contact: Mr Bob Lamers, Tel: +31 411 651 778

www.boschrexroth.com

Mail to: cylinders@boschrexroth.com

CRANES

+\GUDXOLF VWHHO VWUXFWXUHV

7UDVKUDFN FOHDQLQJ V\VWHPV

(ANS +àNZ 'MB( 'ERBESTRAE   (ARD  !USTRIA

4     &    

WWWKUENZCOM SALES KUENZCOM SERVICE KUENZCOM

+\GUDXOLF VWHHO VWUXFWXUHV

7UDVKUDFN FOHDQLQJ V\VWHPV

(ANS +àNZ 'MB( 'ERBESTRAE   (ARD  !USTRIA

4     &    

WWWKUENZCOM SALES KUENZCOM SERVICE KUENZCOM

GATES

FILTRATION EQUIPMENT

GROUTING

ARSA Int Construction Co. (pjs)

Head Office: No. 12 Shohada St

Mirzaye Shirazi Ave

TEHRAN 1586756513, I.R. IRAN

Tel: +98 21 88717220 Fax: +98 21 88721847

Email: info@arsa.ir Website: www.arsa.ir

HEAT EXCHANGERS

Enerfin Inc.

5125 J.A. Bombardier, St-Hubert

(Quebec) Canada, J3Z 1G4

Tel: + 1 450 443-3366

Fax: +1 450 443-0711

Email: sales@enerfin-inc.com

Website: www.enerfin-inc.com

HIGH QUALITY COOLERS FOR:

• Hydro Generators

• Thrust Bearings

• Transformers

• Synchronous Condensers

• Turbo Generators

• Air Preheaters, etc.

Custom Design To Suit Your Application

Extruded Fins

Dam & Hydropower

Drilling & Grouting

Piling & Cast In Place Piles

Cutoff Diagram Wall

Tunneling

Heavy Concrete Construction

Providing water control solutions through thoughtful engineering,

innovative design, attenti on to detail and outstanding customer

service. Contact us for inflata ble water control gates and rubber

ams.

PO Box 668, Fort Collins, CO 80522 USA

el: 970-568-9844

www.obermeyerhydro.com

• Custom Design Hydraulic Cylinders

• Servomotors

• Piston Accumulators'

•

Hydraulic Power Units

•

Control Panels

www.doucehydro.com

Douce Hydro FRANCE, USA and GERMANY

Tel France: + 33 / 3 22 74 31 08 ; E-mail: afleroy@doucehydro.com

el USA: + 1 / 586 566 4725 ; E-mail: fvandenbulke@doucehydro.com

Tel Germany: + 49 / 177 398 37 78 ; E-mail : ublase-henke@doucehydro.com

BEARINGS

PAN

bronzes

and

PAN

-GF

self-lubricating bearings

Since 1931

- Superior quality with

• Highest wear resistance

• Low maintenance

• Or maintenance free

Extended operating life

PAN-Metallgesellschaft

P.O. Box 102436 • D-68024 Mannheim / Germany

Phone: + 49 621 42 303-0 • Fax: + 49 621 42 303-33

ontakt@pan-metall.com • www.pan-metall.com

BEARING OIL COOLERS

HEXECO, Inc. ... a Heat Exchanger Engineering Co.

el: +1 (920) 361-3440 • Fax: +1 (920) 361-4554

-Mail: info.wpd@hexeco.com • Web: www.hexeco.com

OIL COOLERS

For

THRUST and

GUIDE

BEARINGS

CONCRETE COOLING

• COLD & ICE WATERPLANTS

• FLAKE ICE PLANTS

• ICE DELIVERY & WEIGHING SYSTEMS

• ICE STORAGES

KTI-Plersch Kältetechnik GmbH

Carl-Otto-Weg 14/2

88481 Balzheim

Germany

Tel:/Phone: +49 - 7347 - 95 72 - 0

Fax: +49 - 7347 - 95 72 - 22

Email: ice@kti-plersch.com

Website: www.kti-plersch.com

CONCRETE COOLING

Telephone +44 (0)20 8269 7854

I N T E R N A T I O N A L

& DAM CONSTRUCTION

Water Power

WORLD MARKETPLACE

WWW.WATERPOWERMAGAZINE.COM MARCH 2009 49

CLASSIFIED

www.waterpowermagazine.com

HYDRO CASTINGS

HYDROMECHANICAL

EQUIPMENT

•

Water turbine components

• Castings from 100 kg to 30 tons

• Latest CAD-CAM capabilities

• Certified Quality Assurance ISO 9001

• Environmental Management System ISO14001

Your contact: Mr. Timo Norvasto, Sales Manager

Lokomo Steel Foundry

Tel: +358 204 84 4222

Fax: +358 204 84 4233

Email: timo.norvasto@metso.com

Web: www.metsofoundries.com

SD NOELL GmbH

HYDROMECHANICAL EQUIPMENT

Enginee ring, design, fabrication and

installation of hydra ulic steel s t ruc t ures

such as gates, penstocks, stoplog s,

trashracks including appurtenant drives

and electrical control systems as well as

the rehabilitation of existing plants.

Alfred-Nobel-Straße 20,

97080 Würzburg, Germany

Phone (+49) 931 903-1215

Fax (+49) 931 903-1009

Internet: www.dsd-noell.com

e-mail: sales@dsd-noell.com

HYDRO POWER

PLANT EQUIPMENT

! World wide referenced water to wire General Contractor

! Turbines and Generators

! Electromechanical Equipment

! Switchgears

! Control Protection Monitoring and SCADA Systems

! Balance of the Plant

! Turn key projects

! Rehabilitation

S.T.E. S.p.a. - Via Sorio, 120 - 35141, PADOVA(Italy)

tel. +39 049 2963900 - fax. +39 049 2963901

Email: ste@ste-energy.com Web: www.ste-energy.com

ISO 9001 CERTIFIED

ANDRITZ HYDRO GmbH

Penzinger Strasse 76, A-1141 Vienna, Austria

Phone: +43.1.89100-2659, Fax: +43.1.8946046

contact@andritz-hydro.com • www.andritz-hydro.com

Your partner for renewable energy.

Hydro Power.

We focus on the best solution – from water to wire.

Voith Siemens Hydro

ower Generation GmbH & Co. KG

Alexanderstraße 11

89522 Heidenheim/Germany

Tel. +49-7321-37-0

ax +49-7321-37-78 28

www.voithsiemens.com

! Water power plant equipment

(electrical and mechanical)

Pumps

! Governors

! Automation

Modernization of existing power plants

! Management services

! Ocean energies

INSTRUMENTATION

(DAM MONITORING)

Geokon, Incorporated manufactures a full range

of geotechnical instrumentation suitable for

monitoring dams. Geokon instrumentation employs

vibrating wire technology that provides measurable

advantages and proven long-term stability.

The World Leader in

Vibrating Wire Technology

Geokon, Incorporated

48 Spencer Street

Lebanon, New Hampshire

03766

•

USA

Dam Monitoring Instrumentation

•

603

•

448

•

1562

•

603

•

448

•

3216

info@geokon.com

www.geokon.com

Alstom Hydro offers a complete range of equipment and services for

both new and existing hydro power plants, including:

• Turbines & generators for all sizes

• Pump turbines, fixed/variable speed generators motors

• Control & protection systems

• Refurbishment and upgrade

• Services

• Small hydro

• Hydro-mechanical and lifting equipment

4 Avenue André Malraux,

92309 Levallois-Perret Cedex,

France.

T: +33 1 41 49 20 00

F: + 33 1 41 49 37 52

E: hydro.comm@power.alstom.com

W: www.hydro.power.alstom.com

Alstom Hydro:

Vikas Kothari: Executive Director Tel: 91 11 29565552 TO 55

Om Metals Infraprojects Ltd. Fax: 91 11 29565551

4th Floor, NBCC Plaza, Mobile: 91 98110 68101

Tower III, Sector 5, Email: vikas@ommetals.com

Pushp Vihar, info@ommetals.com

Saket, New Delhi, 110 017, INDIA Web: www.ommetals.com

Turnkey EPC contracts for:

•Radial Gates •Trash Racks & TRCM

•Vertical Gates •Gantry Cranes & EOT

•Penstocks •Mechanical/ Hydraulic Hoists

•Stoplogs •Draft Tubes

Turnkey EPC contracts for:

•Radial Gates •Trash Racks & TRCM

•Vertical Gates •Gantry Cranes & EOT

•Penstocks •Mechanical/ Hydraulic Hoists

•Stoplogs •Draft Tubes

Om Metals

WORLD MARKETPLACE

50 MARCH 2009 INTERNATIONAL WATER POWER & DAM CONSTRUCTION

CLASSIFIED

www.waterpowermagazine.com

STEEL CASTING

SMALL HYDROELECTRIC

POWER SETS

MICRO/SMALL

HYDROELECTRIC POWER SETS

- HYDRO TURBINES

PELTON P

FRANCIS F

KAPLAN

UP TO 10 MW

- CONTROL

TECHNOLOGY

www.hydro-energy.com

Global Hydro Energy GmbH

4085 Niederranna 41, Austria, info@hydro-energy.com

Partial Discharge?

www.pdix.com

PARTIAL DISCHARGE DETECTION

INSTRUMENTATION

(GEOTECHNICAL)

Water Power and Dam Construction - Issue March 2009

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