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首页> 外文会议>8th Ceas European Propulsion Forum; Mar 26-28, 2001; Nottingham, UK >DESIGN OF ADVANCED LOW EMISSION COMBUSTOR
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DESIGN OF ADVANCED LOW EMISSION COMBUSTOR

机译：先进的低排放燃烧室的设计

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摘要

Snecma Moteurs is continuously improving the design of combustors to reduce the emissions. This effort has lead Snecma to the successful development of several demonstrators of staged combustors since the end of the seventies. Nevertheless strong reduction of pollutants emissions like NOx, CO, and soot is still needed for future efficient engines in view of preserving current air quality standards. Today the lean combustion concept appears as one of the most promising solutions. It can be implemented through the LPP (Lean Premixed Prevaporised) technology which represents a technological break-through regarding actual experience and ability. Technological principles and principal related difficulties are then described. Since the use of CFD is necessary during design of new concepts, two applications are specially expounded: Evaluation of NOx emissions and Minimisation of thermal fouling risk inside the LPP. A detailed description of the Nox model and associated validation are given.
机译：Snecma Moteurs正在不断改进燃烧器的设计以减少排放。自七十年代末以来，这一努力使斯奈克玛成功开发了几台分级燃烧器的示威者。然而，鉴于保持当前的空气质量标准，未来的高效发动机仍需要大量减少污染物的排放，例如NOx，CO和烟灰。如今，稀薄燃烧概念已成为最有前途的解决方案之一。可以通过LPP（精益预混预蒸发）技术来实现，该技术代表了有关实际经验和能力的技术突破。然后描述技术原理和主要相关的困难。由于在设计新概念时必须使用CFD，因此专门阐述了两种应用：NOx排放评估和LPP内部热结垢风险最小化。给出了Nox模型的详细说明和相关的验证。

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