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Type IV Anti-Icing Fluid Subjected to Light Freezing Rain: Visual and Thermal Analysis
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 10, 2019 by SAE International in United States
Annotation ability available
Deicing the aircraft using fluid, prior takeoff is mandatory; since a thin layer of ice or snow can compromise the safety. With the same idea, to use anti-icing fluid during a frozen precipitation to protect the aircraft is also essential. Commercialized anti-icing fluids all pass the process of qualification as described in the SAE documents. One of these documents specifies a set of tests that reproduce freezing precipitation to obtain endurance time and then the holdover timetables. The endurance time is determined by visual inspection: when 30% of the plate is covered with frozen contaminants. With the evolution of technology and the venue of new tools, it may simplify the process, and at least confirm the observations. This paper proposed a thermal and visual analysis of the behavior of a Type IV fluid subjected to light freezing rain. During the precipitation, the plate temperature is measured with thermocouples and recorded using a visual camera and an IR camera. The use the visual camera in conjunction with the IR camera allowed to understand how the water drops interacted with the fluid and also to confirm the presence of frozen contaminants. The use of IR camera can be useful for the industry; however experimentation needs to be done before.
CitationBrassard, J., Laforte, C., and Volat, C., "Type IV Anti-Icing Fluid Subjected to Light Freezing Rain: Visual and Thermal Analysis," SAE Technical Paper 2019-01-1971, 2019, https://doi.org/10.4271/2019-01-1971.
- SAE International , “AMS1424J: Deicing/Anti-icing Fluid, Aircraft, SAE Type I,” Society of Automotive Engineering, 2018.
- SAE International , “AMS 1428J: Fluid Aircraft Deicing/Anti-Icing, Non Newtonian (Pseudoplastic), SAE Types II, Type III and Type IV,” Society of Automotive Engineering, 2017.
- SAE International , “ARP5485B: Endurance Time Test Procedures for SAE Type II/III/IV Aircraft Deicing/Anti-Icing Fluids,” Society of Automotive Engineering, 2017.
- SAE International , “AS5681B Minimum Operational Performance Specification for Remote On-Ground Ice Detection Systems,” Society of Automotive Engineering, 2016.
- APS Aviation Inc. , “Feasibility of ROGIDS Test Conditions Stipulated in SAE Draft Standard AS5681,” 2007, 212.
- Zhuge, J.-C. et al. , “Influence of Color Coatings on Aircraft Surface Ice Detection Based on Multi-Wavelength Imaging,” Optoelectronics Letters 12(2):144-147, 2016.