摘要:
Global icephobic performance of a passive deicing structure may be achieved by including one or more ice nucleating zones (32) that are configured, preselected, and/or arranged to promote selective formation of ice. Ice nucleation zones may be configured, preselected, and/or arranged to form ice that is weakly adherent and, hence, may be removed by sufficient shear force. Ice nucleation zones typically include nucleating particles to promote selective ice formation. Passive deicing structures typically include both ice nucleation zones (32) and ice resisting zones (34), arranged to facilitate ice removal by shear force. Passive deicing structures may be used on apparatuses such as vehicles (e.g., aircraft) to mitigate the effects of ice formation on exposed surfaces.
摘要:
A coating includes at least one coating layer containing first particles, second particles, and third particles distributed throughout a cross-linked, continuous polymer matrix. An outer surface of the coating layer includes surfaces of at least first particles extending outward from a top periphery of the polymer matrix. The outer surface exhibits a property of delaying ice formation compared to the coating layer without the first particles. A method includes applying a coating composition in one application step. The one-step coating composition contains first particles, second particles, and third particles in a base containing a polymer. A coating composition includes first particles, second particles, and third particles distributed in a matrix precursor.
摘要:
Um eine effektive Anti-Eis-Beschichtung mit aktiver Anti-Eis-Mittel-Abgabe über eine lange Zeitdauer bereitzustellen, schafft die Erfindung eine aktive Anti-Eis-Beschichtung (12), die zur Abgabe eines Anti-Eismittels fähig ist, gekennzeichnet durch in einem UV-härtbaren Matrixmaterial (20) eingebettete Anti-Eis-Mittel-Reservoire (30).
摘要:
The airfoil icing controller apparatuses, methods and systems ("AIC") transforms weather and flight parameter data via AIC components into icing determinations and icing avoidance optimized flight plans based on airfoil type. In one implementation, the AIC comprises a processor and a memory disposed in communication with the processor and storing processor-issuable instructions to receive anticipated flight plan parameter data, obtain weather data based on the flight plan parameter data, obtain atmospheric data based on the flight plan parameter data, and determine a plurality of four-dimensional grid points based on the flight plan parameter data. The AIC may then determine a percent power increase (PPI) required by the aircraft to overcome power loss due to icing conditions. With dynamic, (near) real-time icing information and/or predictive icing forecast specific to airfoil type, the AIC may allow aircraft to effeciently avoid areas where PPI is greater than a predetermined percentage and/or avoid areas where dangerous icing may occur.
摘要:
A method is provided which allows the facile deicing of a surface of a structure in general. Electromagnetic induction or IR/ Microwave radiation is used to heat up a layer or a coating on said surface of the structure in general whereby said layer preferably contains conductive particles such as carbon nano particles, such as graphite, carbon nano tubes, carbon nano cones, metal in powder form, metalized glass beads, carbon fibers, chopped or as woven structure, etc all collectively named Carbon Nano Tubes (CNTs) or cones or metallic particles at concentrations above 0,01 % by weight. Heat conductors such as boron nitride may be used to improve the heat transfer to the surface. Constructions are disclosed which shield the microwave emitters from lightning receiving elements, and which protect the complete structure during lightning events. Radiation can be supplied both from the inside of the structure as well as from the outside.
摘要:
An ice detection system comprising a first group of sensors and a second group of sensors. The first group of sensors is located in a first group of locations on an aircraft. The first group of sensors in the first group of locations is configured to detect a first type of icing condition for the aircraft. The second group of sensors is located in a second group of locations on the aircraft. The second group of sensors in the second group of locations is configured to detect a second type of icing condition for the aircraft.
摘要:
Embodiments of the disclosure include a de-icing system 100 for an aircraft. The de-icing system includes a plurality of resistive-inductive heating elements 202 inserted adjacent to a flight control surface 102 and a controlled 106 configured to provide a supply current to each of the plurality of resistive-inductive heating elements. Each of the plurality of resistive-inductive heating elements produces an electromagnetic field normal to the flight control surface 102 and resistive heat in response to the supply current. The electromagnetic field induces an eddy current in the flight control surface 102.
摘要:
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS). Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). SLIPS outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (
摘要:
A way of using narrowband irradiation to de-ice or release ice from a surface is provided. The methodology can be applied to a range of different types of de-icing from windshield de-icing to aircraft wing de-icing to releasing ice from the ice tray of an ice making machine. While there are many different specific applications, the concept and methodologies taught remain similar across all of them.
摘要:
The invention relates to a de-icing device for an element of a nacelle of a turbojet engine, including at least one heating resistant mat connected to at least one electrical power source (3) and thus defining an assembly (1) of resistant mats, characterised in that the assembly of resistant mats includes one or more subassemblies of resistant mats, each subassembly in turn including one or more resistant mats of the assembly, and each subassembly of resistive mats having a different ohmic value.