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首页> 外文会议>New developments on metallurgy and applications of high strength steels >Development of a PF Fired High Efficiency Power Plant (AD700) an important issue for future power generation
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Development of a PF Fired High Efficiency Power Plant (AD700) an important issue for future power generation

机译：PF高效火力发电厂（AD700）的开发是未来发电的重要问题

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European efforts to start substantial improvements of the performance of well established supercritical coal-fired power technology named the AD700 project began in 1998. Major targets were development of austenitic materials and nickel-based super alloys for the hottest sections of boilers, steam lines and turbines. Other targets were development of boiler and turbine designs for the more advanced conditions, and finally economic viability of the AD700 technology has been investigated. The project has been very successful and 40 partners from the European power industry have worked together in several projects co- funded by the European Commission for 10 years. Procurement of a mature and commercially optimised AD700 plant could take place around 2015. rnThe investigated nickel-based materials have shown very high creep strengths but they are hard to manufacture. Ongoing tests indicate that the developed austenitic material will fulfil its creep strength target and is now ready for commercialisation. rnImproved materials allow higher steam temperatures and pressures. Improved thermodynamic design optimises plant efficiencies for the given steam parameters. The present paper presents a proposal for an improved steam cycle named the Master Cycle (MC) based on a revision of the double reheat steam cycle where the bleeds of the IP turbines have been moved to a feed pump turbine bleeding on the first cold reheat line. rnThe MC offers solid heat rate improvements of }3.5% compared with single reheat cycles. These improvements maintain a flexible operation mode of the plant in relation to renewable energy production plants and facilitate efficient energy supply for a post combustion carbon capture installation. Further thermodynamic improvements enable an efficiency for a seawater-cooled 800MW AD700 power plant around 55% based on the MC. This is the perfect match to the future demand for zero emission power plants.
机译：欧洲从1998年开始着手努力改善公认的超临界燃煤发电技术的性能，即AD700项目。主要目标是为锅炉，蒸汽管线和涡轮机中最热的部分开发奥氏体材料和镍基超级合金。 。其他目标是为更先进的条件开发锅炉和涡轮机，最后对AD700技术的经济可行性进行了研究。该项目非常成功，来自欧洲电力行业的40个合作伙伴在由欧盟委员会共同资助的多个项目中合作了10年。成熟的，经过商业优化的AD700工厂的采购可能会在2015年左右进行。rn研究的镍基材料显示出非常高的蠕变强度，但很难制造。正在进行的测试表明，开发的奥氏体材料将达到其蠕变强度目标，并且已经准备好商业化。改进的材料可以提高蒸汽温度和压力。改进的热力学设计针对给定的蒸汽参数优化了工厂效率。本文提出了一种改进的蒸汽循环方案，称为主循环（MC），它基于对二次再热蒸汽循环的修订，其中IP透平的排气已移至第一冷再热生产线上的给水泵透平。 。 rn与单次再加热循环相比，MC的固热率提高了3.5％。这些改进相对于可再生能源生产厂而言，保持了工厂灵活的运营模式，并为燃烧后碳捕集装置提供了高效的能源供应。进一步的热力学改进使基于MC的海水冷却800MW AD700发电厂的效率提高了约55％。这是对零排放电厂未来需求的完美匹配。

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