民用航空发动机水洗效果量化评价方法

为了掌握水洗对民用航空发动机性能的改善效果,实现从定时水洗向视情水洗的转变,并为航空公司评估节能减排工作成效提供支持,提出一种发动机水洗效果量化评价方法。该方法选择延长在翼时间和节省燃油量作为评价发动机水洗效果的两个主要指标,给出评价指标的计算方法;建立基于成本的发动机水洗效果评价模型,基于该模型对水洗效果进行评价;采用某台水洗后发动机的实际数据对所提出的方法进行验证。最后,基于所提方法开发发动机水洗管理系统。结果表明:所提方法能够实现发动机水洗效果的定量评价,为视情水洗的实现和航空公司评估节能减排工作成效提供支持。

Quantitative Evaluation Method of Civil Aero-engine Water Wash

To obtain the effect of water wash on improving civil aero-engine performance, realize the transition from a hard time water wash to on condition water wash, and provide support for assessing the effectiveness of energy saving for an airline, an effect evaluation method of aero-engine water wash is proposed. The method chooses the extending time on wing and the saving fuel quantity as main evaluation indicators of evaluating the effect of aero-engine water wash, and calculation methods of evaluation indicators are put forward. The effect evaluation model based on cost of aero-engine water wash is established, and water wash effect can be evaluated based on the model. The proposed method is validated by the actual data from an aero-engine after water wash. Results show that the proposed method can achieve a quantitative evaluation of the effect of aero-engine water wash. Finally, an aero-engine water wash management system is developed based on the proposed method. This study can provide support for the implementation of on condition water wash, and also provide support for assessing the effectiveness of energy saving for an airline.