Steam Turbines & Power Plants Turbine and Condenser Modernization in the Farge Power Plant as an example of One Source of Competencepresented at Power Gen Europe 2006, Cologne, GermanyFarge Power Plant is located in the north of Germany in Bremen. It is owned by theGerman power supplier E.ON.
Farge PP is a 350 MW , coal fired power station with a Siemens PG Steam Turbineconsists of HP, IP and 2 LPs and a Siemens PG hydrogen cooled generator. Thestation was commissioned in 1967. After more then 30 years of operation it hasaccumulated approximately 200.000 working hours with nearly 4400 starts and stops.
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SRS: THE STANDARDIZED REPOWERING SOLUTION FOR 300MW STEAM POWER PLANTS IN RUSSIA2006Deregulation and competition are further fueling the demand for new power generationequipment worldwide. Due to the availability and cleanliness of gas, and the ease of consent,gas turbine applications have increased over the last few years. This development is driven bythe addition of capacity, but also by major replacement programs. In this market in particular,Siemens has been realizing that repowering of existing units is taken into consideration due toits reduced land, infrastructure, existing permits, capital cost and time requirement comparedto greenfield projects.
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Power Diagnostics® Service for steam turbines and generators presented at Russia Power 2006, Moscow, RussiaLiberalization/deregulation of the electricity market continues to expand in many parts of the world. This requires that power producer owners and operators deliver electricity more efficiently and at competitive pricing. In parallel with these market demands, the operation of the complete power plant – turbine, generator, boiler and auxiliaries – must improve reliability, availability and utilization/efficiency.
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Operational Flexibility for Steam Turbines based on Service Contracts with Diagnostic Tools presented at Power Gen Europe 2006, Cologne, GermanyOne way to achieve the objective of a flexible and short termed outage planning and to reduce the transactional costs is to establish Service Contracts between the utilities on the one side and the manufacturers on the other. These tailor made contracts should be the basis to leave the transactional business behind and to enter value based and success depending business models or contracts. Critical factors for the success were the alignment of the objectives and the definition of benchmark matrices (Score Cards) to measure the level of success. The range of this Strategic Contracts can vary from simple parts availability programs or Operating Plant Service Agreements (OPSA) to Long Term Programs (LTP) with risk sharing elements and the value based payment mentioned above.
In addition these aims could be achieved more efficiently by using intelligent condition monitoring strategies for the power plant and its key components using a supervisory on-line diagnostic system. The use of comprehensive on-line data acquisition, internet data transmission systems, task-related data analysis and an expert background knowledge base at newly founded Remote Diagnostic Center enable detailed diagnosis of the actual plant condition.
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Biomass looking for efficient utilization –the reheat concept presented at Power Gen Europe 2006, Cologne, GermanyThrough the Kyoto protocol and its country-specific targets, power producers are strongly driven towards CO2-reducing solutions such as biomass energy production. Germany encourages this through new energy legislation, EEG (Renewable Energy Law), which gives higher subsidies for high-efficiency, CO2-reducing power generation. This has led to increased investment in biomass plants. The impact of the high efficiency requirements has enabled new technology to enter this market segment. This paper examines the suitability of industrial steam turbines for this growing market segment, with particular reference to SST-PAC 400 reheat turbosets and gives examples in Germany and Austria.
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Principles of Flue Gas Water Recovery System presented at POWER-GEN International 2005This paper discusses a commercially viable and novel technology that enables the recovery of the water vapor contained in power plant flue gas streams.
Currently, fossil fuel-based power plants consume vast quantities of water for heat rejection, fuel preparation, power augmentation, emissions control, and cycle makeup purposes. At the same time, global water resources are becoming more difficult to procure as water consumption outstrips the pace of renewal. At present, the strategy used to reduce power plant water consumption in areas where water restrictions are stringent is to employ an air-cooled condenser as opposed to once-through cooling or a cooling tower.
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A Large Steam Turbine Retrofit Design and Operation History presented at POWER-GEN International 2005A reliable source of low-cost electricity is fundamental to a healthy economy. The current market supports both the development of new generating resources and the retrofitting of the existing infrastructure to meet the increased electrical demands. These technology retrofit solutions represent an opportunity for generating companies to quickly and cost-effectively improve their competitive position by improving the operation, performance and reliability of existing equipment. This paper describes the design and the results of the Steam Turbine Replacement Components that were supplied by Siemens Power Generation to Dairyland Power Cooperative.
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Steam Turbine Modernization Solutions provide a wideSpectrum of Options to Improve Performance presented at Power-Gen Asia 2005Turbine technologies available for modernization of existing units, as well as replacement steam paths, are:
* Advanced Shaft Sealing - retrofitting with retractable, brush, and abradable sealing
* Blade Replacement - re-blading existing turbine stages with advanced blading, such as 3-dimensional blading
* Major Component Modernization Options - entire replacement steam paths utilizing state-of-the-art materials and technology to maximize performance and reduce reliability and availability issues
* Condenser Optimizations – analysis, reconfiguring, and tube replacement to optimize the condenser performance
The key aspects of these technologies will be discussed to provide an executive summary of their features and benefits.
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Balancing economics and environmental friendliness -the challenge for supercritical coal-fired power plantswith highest steam parameters in the future presented at Power-Gen Europe 2005Siemens has developed for the European power market a 600 MW single unit concept together with several partners. This plant concept fulfils the requirement to balance reliable power supply, sustainable use of existing resources and economic operation. The Reference Power Plant NRW (RPP NRW) is designed for an inland location and achieves a net efficiency of 46 %.
This paper describes results of the turbine development. Some specials of the water steam cycle optimization of the concept study Reference Power Plant North Rhine-Westphalia will be given. Furthermore a view in the future of steam power plants will be given.
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Performance Increase through World Class Technology and Implementation presented at Power-Gen Europe 2005In the present power production market, maintaining an economically competitive power plant requires the latest technological mechanical improvements, as well as efficiency optimization and increase economics of operation and maintenance. Through present day technological developments, the ability to improve economics through increased performance, life extension, and reduction of maintenance costs is, in many cases, just what is required to remain competitive.
This paper describes in detail the technology and how this is applied and executed in the case of the coal-fired Mehrum Power Plant, Germany.
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Design and Materials for Modern Steam Turbines with Two Cylinder Design up to 700 MW presented at Power-Gen Europe 2004Power plant market requirements have changed in recent years. The tendency for highly flexible and efficient power plants with long revision intervals, life times ≥200 000h as well as low investment costs have resulted in an increased effort in the improvement of design and materials. One possible way to meet high efficiency requirements is to install sub-critical steam power plants with live steam temperatures of T ≥565 °C and an optimized steam cycle path. As a result, new challenges have arisen for the design of a two cylinder steam turbine line for a capacity up to 700 MW.
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Welding on Rotors for Power Plant Turbo Sets State of the Art presented at Power-Gen Europe 2004Turbine and generator rotors undergo high stresses and, from a safety aspect, are the most significant components of a turbine generator system. Depending on the appropriate operating temperatures, the shafts can be fabricated out of low/high alloy heat resistance material or of low alloyed, highly toughened material for low pressure application.
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Successful Completion of the 1320 MW (Gross) Coal-Fired Power Plant Iskenderun, Turkey presented at Power-Gen Europe 2004After three years of project development the 1320 MW (gross) Coal Fired Power Plant Iskenderun achieved financial close on 26 June 2000 as the first of five IPP projects in Turkey.
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