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Products & applications Renewable energy Automated control of fuel mix in biomass plant

GS Engineering & Construction has chosen Metso to supply automation for the Dangjin 4 Biomass Power Plant, currently under construction in Dangjin City, near Seoul in South Korea. Once completed in 2015, the 105MW plant will be the largest of its kind in Asia. With the new biomass power plant, owner GS E&C aims to enhance its competitiveness in the power market, increase its electricity capacity and produce more renewable energy.

The plant will be fueled with a mix consisting of 80% palm kernel shells and 20% coal. With Metso’s advanced automation applications, it is possible to con- trol even difficult fuel mixes with

varying fuel ratios. The company was chosen because of its many references from demanding bio- mass-fired power plants. Metso’s delivery scope includes a Metso DNA automation system (DCS) for the whole power plant, including the CFB boiler, Balance of Plant and electric network. It also includes a Plant Performance Application and systems. Commissioning is planned for August 2015. Metso

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Rotork Schischek ExMax explo- sion-proof actuators have been selected to assist the production of biogas for district heating sys- tems in Munich. Biogas is pro- duced during the effluent treatment process at the city’s largest waste water plant Klaerwerk Gut Grosslappen. The ExMax actuators have been installed in the digester and fer- mentation tanks, where all electri- cal equipment must be approved for hazardous areas. The actuators are used for the operation of air

dampers to balance the inside temperature of the inner tank. Factors favouring the Rotork Schischek products for this application include their com- pact size, ease of installation, standardised connections and Zone 1 hazardous area explosion- proof certification.

All products are manufactured with colour coding - Yellow denotes hazardous Zones 1, 2, 21 and 22, red denotes hazardous Zones 2 and 22 and green denotes non-hazardous areas only.

Harnessing energy

Black & Veatch has announced that it will support Scottish Water’s ambitious hydropower generation programme. This will see two of Scotland's vast resources, water and the potential for renewable energy, come together to benefit both the environment and Scottish Water’s customers. Scottish Water assets are being developed through the addition of hydro turbines at several raw water and treated potable water locations. As design and build contractor, Black & Veatch will undertake the retrofit of hydro turbines at a number of sites. Some of the principal challenges the

Rotork Controls T: 01225 733200

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hydro projects present include installing new equipment in existing water infrastructure without interrupting service, ensuring efficient perfor- mance, and delivering reliability with minimal maintenance. The considerable flow in large water supply pipes will be used to produce renewable energy, thereby reducing the amount of electricity Scottish Water needs to buy from the National Grid. The work will reduce the power costs for water treatment, helping to keep Scottish Water’s operating expenditure down. Black & Veatch

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