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PiT Navigator control of secondary air

PiT Navigator control of secondary air. Control at MKV Fenne. The graphs show the manipulation of the secondary air per burner. Results in the plant MKV Fenne. Since summer 2005 the following optimisation targets was reached and are used for the payment to Powitec:

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PiT Navigator control of secondary air

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  1. PiT Navigator control of secondary air Control at MKV Fenne The graphs show the manipulation of the secondary air per burner

  2. Results in the plant MKV Fenne • Since summer 2005 the following optimisation targets was reached and are used for the payment to Powitec: • Additonal process performance: • Reduced slagging on the burner mouth / optimised boiler availability • Increased flexibility in charge of used coal types / larger coal band • Dirk Kiehn, Production Manager: • “Steag Saarenergie confirms that the PiT Navigator reaches their expectations and is very satisfied with the system performance and benefits. • The Powitec system is flexible and very easy to use and our operators have high confidence in it!” • Optimisation lambda, from 1,28 down to 1,15

  3. Targetat Fenne plant, Germany Target Prio 1: - Lambda: n 1,28 -> 1,15 First basis for Performance Contracting payment Quality function Lambda: Reduction of excess air from 1,25 to 1,24 means: • Reduction of flue gas amount (198 kg/sec) of 1,6 kg/sec • This 1,6 kg/sec must be not upheated any more around 150°C • Reduction 289 kJ/sec • Considering a coal with CV=29,3 MJ/kg, means a reduction of 36 kg coal/h • Considering a coal price of 50 €/t this finalises in 1,80 €/h less costs! 0 €/h 30 €/h 1,24 1,80 €/h 1,14 1,25 Lambda

  4. PiT Navigatorat Vattenfall Tiefstack plant, Unit 1 Tiefstack Power Plant, Hamburg, Germany operated by HEW, Vattenfall group 2 x 252 MW units, import coals, Base-load 2 front wall firing boilers with 6 burners (3 mills /levels). PiT Navigator controls the combustion air distribution per burner since June 2004 with 6 cameras totally. Result: 0,3% increase of boiler efficiency Mill 30 Mill 20 Mill 10 Air left Air right PiT Multisensor air coal

  5. South Korea: Seocheon TPP, Komipo Seocheon Thermal Power Plant Unit 1 & 2 2 x 215 MW units, Anthracite coal, Base-load Seocheon Thermal Power Plant, was the first power plant which was constructed to use the low-grade high ash (50%) domestic coal. It is operated by Korean Midland Power Ltd (Kepco). The capacity is 400,000 kW (200,000 kW x 2). Plant #1 was completed in 1983; and Plant #2 in 1983 by DOOSAN, Retrofit 2004/2005 (both units) by FW/ABB. PiT Navigator controls the combustion air distribution per windbox (4pcs.) since May 2005 with 4 cameras per boiler with 40 burners. Result: 0,8% (TPP1) and 1,2% (TPP2) less of unburned carbon in ash

  6. 2 Slag tap fired boilers, each with 4 PiT Multisensors PiT Multisensor

  7. PiT Navigator system for tangential fired units ABB-CE 500 MW boiler ABB-CE style; • Proposal with 6 cameras totally • 4 cameras for the flame cyclone • 2 cameras for slagging monitoring • PiT Navigator control’s level-wise aux.air dampers in a limit of +/- 5 % air AUX AIR DAMPER (FF) MILL F PiT Multisensor view direction air coal

  8. Corporate Profile: Powitec Intelligent Technologies GmbH, based in Essen, Germany, was established in 2001. In close cooperation with the Technical University of Ilmenau, the company develops software systems for customers in cement manufacturing, waste incineration, hazardous waste disposal and power generation. These systems are selflearning and optimize combustion processes. Powitec provides software as well as hardware products and builds facilities all over the world. Powitec solutions deliver benefits such as energy efficiency, reduced emissions, improved availability, reductions in the use of primary and secondary fuels and quality management. For more information please visit our web side www.powitec.de or contact our sales office: Powitec Intelligent Technologies GmbH Im Teelbruch 134 b 45219 Essen, Germany Fon: +49 (0)2054-93762-0 Fax: +49 (0)2054-93762-22 E-Mail : d.schmidt@powitec.de

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