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首页> 外文会议>ASME Turbine Technical Conference and Exposition >EXPERIMENTAL INVESTIGATION OF THE COMBUSTION CHARACTERISTICS OF A DOUBLE-STAGED FLOX-BASED COMBUSTOR ON AN ATMOSPHERIC AND A MICRO GAS TURBINE TEST RIG
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EXPERIMENTAL INVESTIGATION OF THE COMBUSTION CHARACTERISTICS OF A DOUBLE-STAGED FLOX-BASED COMBUSTOR ON AN ATMOSPHERIC AND A MICRO GAS TURBINE TEST RIG

机译：大气和微型燃气轮机试验台上双分阶段氟燃烧器燃烧特性的实验研究

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摘要

To establish micro gas turbine (MGT) systems in a wide field of CHP applications, innovative combustion concepts are needed to meet the demands for low exhaust gas emissions, high efficiency and reliability as well as high fuel flexibility. A promising technology for future MGT combustion is the FLOX concept. The goal of the presented work is to prove the feasibility of a double-staged, FLOX-based MGT combustion system on a MGT test rig. The paper reports a reliable operating behavior of a Turbec T100 MGT in combination with the new FLOX-based combustion chamber utilizing natural gas. The measured exhaust gas emissions are compared for different configurations of the combustion chamber and the standard Turbec system. It is shown that the carbon monoxide emissions are reduced whereas the nitrogen oxide emissions exceed the emission levels of the standard MGT burner. However, they still fall far below the German legal limits. For helping to interpret the results of the MGT combustion system, the double-staged combustor is compared to a single-staged FLOX burner on basis of atmospheric measurements. Here, it is shown that the margin to lean blow-off is sub-stantially increased by the fuel staging. Moreover, it is demonstrated that the exhaust gas emissions of the double-staged combustor could be kept at a similar very low level by applying the staging. Additionally, the overall reaction regions are reported by OH~* chemiluminescence imaging as a function of burner air number. Based on this atmospheric study the transfer to MGT conditions is made and appropriate measures are derived to optimize the exhaust gas emissions of the MGT FLOX combustion system.
机译：为了建立在广场CHP应用领域中的微型燃气轮机（MGT）系统，需要创新的燃烧概念来满足低气排放，高效率和可靠性以及高燃料灵活性的需求。未来MGT燃烧的一个有希望的技术是闪光概念。所提出的工作的目标是证明在MGT试验台上的双分阶段的基于FLOX的MGT燃烧系统的可行性。本文在利用天然气的基于新的燃料基燃烧室组合报告了涡轮T100 MGT的可靠操作行为。比较测量的废气排放，以与燃烧室和标准涡轮系统的不同配置进行比较。结果表明，一氧化碳排放量降低，而氮氧化物排放量超过标准MGT燃烧器的排放水平。但是，他们仍然低于德国的法律限制。为了帮助解释MGT燃烧系统的结果，在大气测量的基础上将双分阶段的燃烧器与单分阶段的闪光燃烧器进行比较。这里，示出通过燃料分级沉积稀污染的余量。此外，证明双分阶段燃烧器的废气排放可以通过施加分段来保持在类似的极低水平。另外，作为燃烧器空气数的函数，通过OH〜*化学发光成像报告总反应区域。基于该大气研究，对MGT条件的转移进行了转移，并得出适当的措施，以优化MGT散燃系统的废气排放。

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