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Detection and warning of ice crystals clogging pitot probes from total air temperature anomalies
Aerospace Science and Technology ( IF 5.6 ) Pub Date : 2020-05-22 , DOI: 10.1016/j.ast.2020.105874
Eduardo S. Ayra , Álvaro Rodríguez Sanz , Rosa Arnaldo Valdés , Fernando Gómez Comendador , Javier Cano

Jet engine malfunctions and pitot probe blocking are two safety events for which the formation of High Altitude Ice Crystals (HAIC) is a relevant contributing factor. Power loss and damage in jet engine under such conditions has drawn considerable attention of air transport authorities and industry. In turn, little interest has been paid to pitot probe clogging by HAIC, despite it being the main cause of two fatal accidents occurred in recent years. Aiming to increase flight safety, indications of erroneous Total Air Temperature (TAT) measurements due to built-up HAIC could be used to improve crew situation awareness. To that end, we propose data-based, practical and cost-effective mitigation measures to reduce the associated risk.



中文翻译:

从总气温异常中检测和警告冰晶堵塞皮托管

喷气发动机故障和皮托管堵塞是两个安全事件,与之相关的高空冰晶(HAIC)的形成。在这种情况下喷气发动机的动力损失和损坏已经引起了航空运输当局和工业界的极大关注。反过来,尽管这是近年来发生两起致命事故的主要原因,但HAIC对皮托管探针的堵塞却兴趣不大。为了提高飞行安全性,可以使用由于内置HAIC而导致的总空气温度(TAT)测量错误的指示来提高机组人员的状况。为此,我们提出了基于数据的,实用且具有成本效益的缓解措施,以减少相关风险。

更新日期:2020-05-22
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