Icing Condition Predictions Using FBGS
| Autor: | Julio Mora Nogués, Miguel González del Val, Malte Frövel, Paloma García Gallego |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Airfoil
fiber optic Chord (geometry) Optical fiber FBGS SLD 02 engineering and technology latent heat TP1-1185 01 natural sciences Biochemistry Article 010305 fluids & plasmas Analytical Chemistry law.invention Icing conditions 0203 mechanical engineering Fiber Bragg grating law ice modeling 0103 physical sciences Electrical and Electronic Engineering Instrumentation Wind tunnel Icing 020301 aerospace & aeronautics Chemical technology temperature Atomic and Molecular Physics and Optics Liquid water content Environmental science ice detection icing aircraft Marine engineering |
| Zdroj: | Sensors, Vol 21, Iss 6053, p 6053 (2021) Sensors (Basel, Switzerland) Sensors Volume 21 Issue 18 |
| ISSN: | 1424-8220 |
| Popis: | Icing is a hazard which is important for the aerospace industry and which has grown over the last few years. Developing sensors that can detect the existence not only of standard icing conditions with typically small droplet size, but also of Supercooled Large Droplet (SLD) conditions is one of the most important aims in order to minimize icing hazards in the near future. In the present paper a study of the Fiber Bragg Grating Sensors’ (FBGSs) performance as a flight icing detection system that predicts the conditions of an icing cloud is carried out. The test matrix was performed in the INTA Icing Wind Tunnel (IWT) with several icing conditions including SLD. Two optic fibers with 16 FBGS in total were integrated in the lower and upper surface of an airfoil to measure the temperature all over the chord. The results are compared with a Messinger heat and mass balance model and the measurements of the FBGS are used to predict the Liquid Water Content (LWC) and Ice Accretion Rate (IAR). Finally, the results are evaluated and a sensor assessment is made. A good correlation was observed between theoretical calculations and test results obtained with the FBGS in the IWT tests. FBGS proved to detect the beginning and end of ice accretion, LWC and IAR quickly and with good precision. |
| Databáze: | OpenAIRE |
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