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GLOBAL POWER GENERATION

FAN AND AIR HEATER TECHNOLOGY

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GLOBAL POWER GENERATION

HOWDEN... THE GLOBAL FORCE IN AIR AND GAS HANDLING

Our customers turn to us because we bring over a century of expertise to some of the most robust, highly engineered plant in the world. No one has more experience.

With experience stretching back 150 years, Howden Power is an integral part of the global power generation industry. Each of our specialised product companies is a world leader in its field. Our success lies in our solutions orientated approach to customer satisfaction. The advanced technology and inherent reliability of our fans and heat exchangers combined with the comprehensive support which is a cornerstone of our philosophy provides unrivalled value to our customers and users. From project inception to the end of plant life we work in partnership to provide technical advice, project management, spares and support. Our products are used in many varied applications where the highest levels of performance and reliability are of paramount importance. From basic industries such as power generation, steel and cement manufacture to high technology installations such as aerodynamic wind tunnel testing.

ADVANCED TECHNOLOGY WITH PROVEN PERFORMANCE & RELIABILITY

Air heaters: Since 1923 Howden has been supplying rotary air heaters to the power and process industries.

Cooling fans: Our ultra-low noise cooling fans can help contractors to meet very low noise specifications or increase cooling within existing acoustic limits.

FGD: We supplied some of the world's first FGD systems in 1934, and since then we have become the global supplier of gas-gas heaters and booster fans.

Air preheater upgrades: Our sealing system enhancement is so effective that in many cases it allows the station to significantly increase MW output.

Axial flow fans: We invented the Variax variable pitch axial flow fan in 1951 and since then have supplied more than 3000 fans to power stations and FGD plant throughout the world.

Centrifugal fans: We invented the aerofoil bladed centrifugal fan 50 years ago and now have supplied more than 25,000 heavy duty fans.

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GLOBAL POWER GENERATION

HOWDEN... INNOVATIVE, MARKET LEADING UTILITY BOILER PRODUCTS

With unrivalled experience in the power generation industry we use our in-depth knowledge to provide innovative market leading products and services for all sizes and types of utility boilers.

FANS: AXIAL FANS CENTRIFUGAL FANS MIXED FLOW FANS AIR HEATERS: BISECTOR AIR HEATERS TRISECTOR AIR HEATERS QUADSECTOR AIR HEATERS CONCENTRIC AIR HEATERS

Axial flow fans: Our axial fans can be fully maintained in-situ, without the need to remove major components to the workshop.

Centrifugal fans: Our fans are optimised using the latest finite element and numerical flow modelling techniques.

Air heaters: We configure our airheaters to meet the customer's performance, layout and construction requirements.

Mixed flow fans: In many cases this type of fan can provide an optimum balance between centrifugal and axial fan characteristics.

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ENGINEERING EXCELLENCE DELIVERS PRODUCTS THAT LEAD THE MARKET

Air preheater upgrades: We can increase heat recovery, reduce leakage or improve the cleanability of existing air preheaters, irrespective of original manufacturer.

Rotary heater elements: We can supply the optimum element configuration for any set of operating parameters.

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GLOBAL POWER GENERATION

HOWDEN... ENVIRONMENTAL PROTECTION

Our comprehensive range of fans and heat exchangers is specifically designed for use in systems to reduce SOx, NOx and other emissions; such as wet and dry FGD, SCR, SNCR, overfire air and gas & coal reburn. We continually use our understanding of the chemistry of the gas path and the interaction of the fans and heat exchangers within it to provide the most cost-effective solution for the client.

FGD: Having supplied the world's first C Position fans, we now have the world's largest installed base of FGD booster fans.

Gas reheaters: Our gas-gas heaters minimise the potential for fouling and corrosion.

Gas reheaters: Optimum element selection allied to an effective cleaning system minimises the risk of fouling and consequent pressure drop rise.

Air preheater upgrades: We can reconfigure existing air heaters to meet the demands imposed by new operating conditions, such as the upstream installation of SCR plant.

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OUR PRODUCTS ARE DEVELOPED FROM EXPERIENCE GAINED FROM AROUND THE WORLD

Heater element profiles: Our knowledge of the process chemistry allows us to choose the correct heater element profile, configuration and material. A range of enamelling processes allows us to match the level of protection with the operating environment.

Fans: We supply fans for the wet and dry positions as well as combined ID/Boosters.

Blowers: Our centrifugal turbo blowers are used for FGD oxidation.

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GLOBAL POWER GENERATION

HOWDEN... AFTERMARKET SERVICES

As a supplier of products whose operating life can be 40 years, or more, we fully understand the need to meet our customers' requirements throughout the life of the plant: installation, commissioning, maintenance, refurbishment and enhancement. We do not just confine ourselves to Howden products but install, maintain and operate rotating machinery and other equipment such as materials handling plant and control & instrumentation systems.

Cooling towers: We upgrade cooling fans to increase output.

Response: Rapid response to breakdown and unforeseen circumstances.

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OFFICES, FACTORIES AND SERVICE CENTRES THROUGHOUT THE WORLD

Axial fans: All regular maintenance can be carried out in-situ. Elements: We supply a complete range of profiles and baskets.

Operation: We operate and maintain a wide range of machinery and plant.

Construction: Complete plant construction can be carried out by our experienced erection teams.

Enhancement: Fan enhancement can pay back very quickly.

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GLOBAL POWER GENERATION

HOWDEN... COOLING FANS

Our cooling fans are designed to maximise aerodynamic performance whilst minimising noise generation in applications such as cooling towers, air cooled steam condensers and air coolers. In addition to the supply of fans, we have considerable experience in increasing thermal performance or reducing noise in existing installations by replacing the existing fans.

DEDICATED FANS FOR WET, DRY AND HYBRID COOLING SYSTEMS

The SX fan: the world's quietest cooling fan for a given aerodynamic output.

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HOWDEN... WORLDWIDE EXPERIENCE

Nowadays customers don't just need products; they need solutions. Our global capabilities are not limited to fans and air heaters.

We install, commission, operate and maintain a range of equipment from rotating machinery to complete plant ­ all backed up with warranties. In short we supply a total service to hard pressed project and plant managers.

DESIGN | ENGINEERING | MANUFACTURE | TESTING | INSTALLATION | SERVICE

www.howden.com

©2006 All rights reserved. Howden Group Ltd

Focussing on its global expertise in fans and rotary heat exchangers, Howden delivers first class technology, project management and customer support. Wherever our customers are located, a Howden office is close at hand. With engineering, manufacturing and sales offices throughout the world, we understand and satisfy local market needs. For further information, contact your local representative, our website or any of the companies listed below.

Howden UK Tel: +44 141 885 7300 Email: [email protected] Howden Spain Tel: +34 968 32 00 64 Email: [email protected]

Howden Denmark Tel: +45 55 77 62 62 Email: [email protected] Howden Australia Tel: + 61 2 8844 9100 Email: [email protected]

Howden Netherlands Tel: +31 74 255 6000 Email: [email protected] Howden Hua Engineering Co Ltd Tel: +86 10 66419988 Email: [email protected]

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