Analysis and modelling of icing of air intake protection grids of aircraft engines

Vercillo, Vittorio; Karpen, Norbert; Laroche, Alexandre; Guillén, Javier Alejandro Mayén; Tonnicchia, Simone; Jorge, Raphael de Andrade; Bonaccurso, Elmar

doi:10.1016/j.coldregions.2019.01.012

Cited by 19 publications

(9 citation statements)

References 14 publications

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“…Preventing ice buildup on aerodynamic components is of primary importance to flight safety [1,2]. Ice accumulates especially on the front components of an aircraft, severely limiting its performance by increasing drag and decreasing lift.…”

Section: Introductionmentioning

confidence: 99%

Icing Mitigation by MEMS-Fabricated Surface Dielectric Barrier Discharge

et al. 2021

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Avoiding ice accumulation on aerodynamic components is of enormous importance to flight safety. Novel approaches utilizing surface dielectric barrier discharges (SDBDs) are expected to be more efficient and effective than conventional solutions for preventing ice accretion on aerodynamic components. In this work, the realization of SDBDs based on thin-film substrates by means of micro-electro-mechanical-systems (MEMS) technology is presented. The anti-icing performance of the MEMS SDBDs is presented and compared to SDBDs manufactured by printed circuit board (PCB) technology. It was observed that the 35 μm thick electrodes of the PCB SDBDs favor surface icing with an initial accumulation of supercooled water droplets at the electrode impact edges. This effect was not observed for 0.3 μm thick MEMS-fabricated electrodes indicating a clear advantage for MEMS-technology SDBDs for anti-icing applications. Titanium was identified as the most suitable material for MEMS electrodes. In addition, an optimization of the MEMS-SDBDs with respect to the dielectric materials as well as SDBD design is discussed.

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Section: Introductionmentioning

confidence: 99%

Icing Mitigation by MEMS-Fabricated Surface Dielectric Barrier Discharge

et al. 2021

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“…Ice accumulation can damage locks and dams [1], reduce the performance of cryogenic, refrigeration and air conditioning systems [2], cause power lines and telecommunication equipment outage [3]. Furthermore, ice accretions may result in dangerous road conditions and serious hazards during flights [4,5].…”

Section: Introductionmentioning

confidence: 99%

Direct Femtosecond Laser Fabrication of Superhydrophobic Aluminum Alloy Surfaces with Anti-icing Properties

et al. 2020

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Ice formation is a serious issue in many fields, from energy to aerospace, compromising the devices’ efficiency and security. Superhydrophobicity has been demonstrated to be correlated to the anti-icing properties of surfaces. However, fabricating surfaces with robust water repellence properties also at subzero temperature is still a great challenge. In this work, femtosecond laser (fs-laser) texturing is exploited to produce superhydrophobic surfaces with anti-icing properties on Al2024, an aluminum alloy of great interest in cold environments, in particular for aircraft production. Our textured substrates present self-cleaning properties and robust water repellency at subzero temperatures. Moreover, outstanding anti-icing properties are achieved on the textured surfaces at −20 °C, with water droplets bouncing off the surface before freezing.

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“…This ice accretion changes the airfoil geometry, altering the wing's aerodynamic characteristics (loss of lift, increase in drag). Icing conditions also threaten aircraft's engines with uncontrolled ice shedding and with air intakes protection grids icing, inducing power loss and eventually, causing engine flame-out in the case of total obstruction (Vercillo et al, 2019). Conventional thermal ice protection systems, such as hot air bleed systems (Moir and Seabridge, 2011) or more recent electro-thermal (bleed less) types, do require high power supply (Meier and Scholz, n.d.;Shinkafi and Lawson, 2014).…”

Section: Introduction and Objectivesmentioning

confidence: 99%