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首页> 外文会议>ASME(American Society of Mechanical Engineers) Turbo Expo vol.1; 20060506-11; Barcelona(ES) >DESIGN OF A LEAN PREMIXED PREVAPORIZED CAN COMBUSTOR
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DESIGN OF A LEAN PREMIXED PREVAPORIZED CAN COMBUSTOR

机译：精制预混罐式燃烧器的设计

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Increasingly, more stringent emissions regulations have necessitated new gas turbine combustor designs with low pollutant emissions. Radically different modern designs have been developed to meet these requirements while maintaining high combustion efficiencies and good flame stability. While several published methodologies for conventional combustor design exist, none exist for modern ones. This paper describes the development of a new preliminary design algorithm for a modern lean premixed prevaporized (LPP) combustor. It also introduces a new LPP combustor concept. The approach used is multi-disciplinary in nature, applying empirical and semi-empirical models in the algorithm to capture complex processes such as droplet evaporation, chemical reaction, jet mixing, and heat transfer. The resulting set of procedures allows a designer to quickly define the detailed geometry of the combustor and provides an assessment of its performance. The preliminary design procedures were verified using the advanced numerical techniques of computational fluid dynamics (CFD). Reasonable agreement between predictions from the preliminary design and numerical analysis was achieved which indicated that the design procedures have been developed successfully.
机译：越来越严格的排放法规要求新的燃气轮机燃烧室设计具有低污染物排放。已经开发出完全不同的现代设计来满足这些要求，同时保持较高的燃烧效率和良好的火焰稳定性。虽然存在几种公开的常规燃烧器设计方法，但现代方法则不存在。本文介绍了一种用于现代贫油预混预蒸发（LPP）燃烧器的新的初步设计算法的开发。它还引入了新的LPP燃烧器概念。使用的方法本质上是多学科的，在算法中应用经验和半经验模型来捕获复杂的过程，例如液滴蒸发，化学反应，喷射混合和传热。由此产生的一组程序使设计人员可以快速定义燃烧器的详细几何形状，并对其性能进行评估。使用先进的计算流体动力学（CFD）数值技术验证了初步设计程序。初步设计的预测与数值分析之间取得了合理的一致性，这表明设计程序已成功开发。

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