Constrained problem formulations for power optimization of aircraft electro-thermal anti-icing systems

Abstract

Various constrained problem formulations for the optimization of an electro-thermal wing anti-icing system in both running-wet and evaporative regimes are presented. The numerical simulation of the system is performed by solving the conjugate heat transfer problem between the fluid and solid domains. The optimization goal is to reduce the energy use and power demand of the anti-icing system while ensuring a safe protection. The formulations are carefully proposed from the physical and mathematical viewpoints; their performance is assessed by means of several numerical test cases to discern the most promising for each regime. The design optimization is conducted using the mesh adaptive direct search algorithm using quadratic and statistical surrogate models in the search step. The influence of the models on the convergence speed and the quality of the obtained design solutions is investigated.

Mechanism study of coupled aerodynamic and thermal effects using plasma actuation for anti-icing

“…[1][2][3][4][5] The current anti-/de-icing methods fall into two distinct categories: (1) anti-icing (i.e., ice prevention) and (2) deicing (i.e., ice removal). The methods can also be classified into three categories: 6,7 (1) the liquid-based, such as weeping wings, (2) the mechanical-based, such as pneumatic boots, and (3) thermal-based, such as hot-air 8 and electro-thermal systems. 6 The breakthrough of the significant technology in the area of aerodynamics, materials, and power raised many challenges on the current anti/de-icing methods.…”

“…The methods can also be classified into three categories: 6,7 (1) the liquid-based, such as weeping wings, (2) the mechanical-based, such as pneumatic boots, and (3) thermal-based, such as hot-air 8 and electro-thermal systems. 6 The breakthrough of the significant technology in the area of aerodynamics, materials, and power raised many challenges on the current anti/de-icing methods. For example, the application of natural laminar flow technique requires the extremely smooth and precisely finished surfaces, while the current mechanical-based and hot-air anti/de-icing techniques have surface gaps and steps configurations which can provoke laminar-turbulent transition.…”

Bioinspired Surfaces with Superwettability for Anti‐Icing and Ice‐Phobic Application: Concept, Mechanism, and Design

“…[1][2][3][4][5][6][7][8][9][10][11][12][13] When ice accumulates on the wings of aircraft, turbine engine structures, or insulators and transmission lines on power systems, it will impose serious problems and cause some disastrous damage in the aircraft and power industry. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] In the winter of 2008-2009, frozen rain lasted for more than three weeks in Hunan and Jiangxi provinces, causing downfall of 37% of Ice accumulation poses a series of severe issues in daily life. Inspired by the nature, superwettability surfaces have attracted great interests from fundamental research to anti-icing and ice-phobic applications.…”

Simulation of different shapes and arrangements of holes over the leading edge of airfoil by blowing to prevent ice accretion

“…The energy consumption, ice thickness, ice volume, ice shape, and the location of ice ridge were used. Pourbagian et al [6] investigated constraint formulations for the power optimization of an electrothermal anti-icing system in both running-wet and evaporative regimes to reduce the energy use and power demand. The design optimization was conducted using the mesh adaptive direct search algorithm and quadratic and statistical surrogate models in the search step.…”