概括
这项研究表明,仅使用光学发射光谱学,对双模式飞机进行闭环加油控制. 这种新的方法使用物种排放强度来精确调节先进推进系统中的燃料.
科学领域:
- 航空航天工程 航空航天工程
- 燃烧科学 燃烧科学
- 频谱学是一种光谱学.
背景情况:
- 双模式喷气式飞机是先进的推进系统,需要精确的燃料控制才能有效运行.
- 传统的传感器可能受到恶劣的燃烧环境的限制.
- 光学发射光谱为监测燃烧过程提供了一种非侵入性的方法.
研究的目的:
- 用光学发射光谱 (OES) 作为唯一的反传感器来演示双模式喷气式喷气机的闭环加油控制.
- 为了确定最佳的OES物种对和成像位置,用于敏感的燃料控制.
- 为了评估光学窗口传输对控制性能的影响.
主要方法:
- 主要物种 (OH*,CH*,C2*) 在喷气式燃烧器中的特征光学辐射.
- 在各种燃料条件和地点分析了物种对之间的相对排放强度.
- 实施了一个控制系统,利用最敏感的物种对 (C2*/OH*) 和成像位置进行反.
主要成果:
- 成功演示了仅使用OES反的双模式喷气机的闭环加油控制.
- 确定了C2*/OH*排放对和特定的成像位置对燃料变化高度敏感.
- 研究并量化了光传输变化对控制系统有效性的影响.
结论:
- 光学发射光谱是一种可行且有效的单一传感器,用于双模式飞机的闭环加油控制.
- 这项研究展示了这种控制系统的首次已知的演示,为先进的scramjet操作铺平了道路.
- 这些发现突显了OES在极端环境中进行强大且非侵入性燃烧监测和控制的潜力.
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