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首页> 外文会议>Power-Gen Asia 2005 >COMBUSTION CONTROL IN THE GT24/GT26 - COMBUSTION TECHNOLOGY FOR LOW-EMISSION OPERATION WITH HIGH HYDROCARBON ('C2+') FUELS
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COMBUSTION CONTROL IN THE GT24/GT26 - COMBUSTION TECHNOLOGY FOR LOW-EMISSION OPERATION WITH HIGH HYDROCARBON ('C2+') FUELS

机译：GT24 / GT26中的燃烧控制-高碳（'C2 +'）燃料低排放运行的燃烧技术

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The demand for power gas turbines that are able to burn a wide range of natural gas qualities is fast growing world -wide. Such gases are found for example in parts of Brazil, Algeria and in particular in Asia, such as in the gulf of Bengal and Thailand. The presence of inert diluents and highly reactive higher hydrocarbons requires flexible operation and robust combustion systems that become a major challenge to the designer if such requirement is combined with low emission targets.rnALSTOM has developed, validated and implemented a combustor design and control concept in its high-end GT24/GT26 fleet that can handle such non-conventional fuels even with large variations within a short time interval. Today, ALSTOM can report on successful operation of a growing fleet of 19 units with non-standard gases; they have an accumulated operating experience of 290'000 hours, running in many cases at single digit NOx emission levels.rnThe paper reports on the development program which has been carried from conceptual design through various rig tests from generic to component level, to full-scale engine validation in ALSTOM's in-house validation unit.rnA particular focus of the paper is on the use of advanced statistical analysis of the field data for the definition of the combustor operation and protection limits in dependence of fuel composition. It precisely confirms the original operation and protection concept and allows the power output to be maximised whilst minimizing emission and pulsation levels. It is shown that the intrinsic advantage of a sequential combustion system can be exploited also for non-standard gases, even if the reheat combustor provides a particular challenge to the combustion engineer.rnThe development of a fast optical monitoring system for online gas-composition monitoring is outlined. With the help of that fast gas analyser it has been proven that the gas compositions may vary over several % per second. Based on this experience ALSTOM has developed its fast gas turbine control system.
机译：在世界范围内，对能够燃烧多种天然气质量的动力燃气轮机的需求正在快速增长。例如在巴西，阿尔及利亚的部分地区，尤其是在亚洲，例如在孟加拉湾和泰国的海湾，发现了这种气体。惰性稀释剂和高反应性高级烃的存在要求灵活的操作和强大的燃烧系统，如果将此类要求与低排放目标结合在一起，将成为设计人员的主要挑战。rnALSTOM在其设计，控制和燃烧概念中进行了验证和实施。高端GT24 / GT26机队，即使在很短的时间间隔内发生较大变化，也可以处理此类非常规燃料。今天，阿尔斯通可以报告19个使用非标准气体的不断增长的机组的成功运行情况；他们积累了290,000个小时的运行经验，在许多情况下都以NOx排放量单位运行。rn本文报告了该开发计划，该计划从概念设计到从通用到部件级别的各种钻机测试，一直到全面在阿尔斯通内部验证部门中进行规模发动机验证。本文的特别重点是对现场数据进行高级统计分析，以定义燃烧室运行和取决于燃料成分的保护限值。它精确地确认了原始的操作和保护概念，并允许最大程度地输出功率，同时使发射和脉动水平最小。结果表明，即使再热燃烧室给燃烧工程师带来了特殊的挑战，非标准气体也可以利用顺序燃烧系统的内在优势。-用于在线气体成分监测的快速光学监测系统的开发概述。在该快速气体分析仪的帮助下，已证明气体成分每秒可变化几％。基于这一经验，阿尔斯通开发了其快速燃气轮机控制系统。

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  • 来源
    《Power-Gen Asia 2005》|2005年|p.1-9|共9页
  • 会议地点 Singapore(SG)
  • 作者

    O. Riccius; rnP. Flohr;

  • 作者单位

    Gas Turbine Business, ALSTOM Power Turbo-Systems ALSTOM (Switzerland) Ltd, Brown Boveri Str. 7, CH-5400 Baden, Switzerland;

    rnGas Turbine Business, ALSTOM Power Turbo-Systems ALSTOM (Switzerland) Ltd, Brown Boveri Str. 7, CH-5400 Baden, Switzerland;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 电力、电机工业;
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