Parameter study and experimental analysis of a thermo-mechanical de-icing concept

Abstract

The removal of ice accumulation on aerodynamic surfaces is a common challenge not only in aviation but also for stationary installations on the ground such as wind turbines. The aim of this paper is to investigate a novel concept for a thermo-mechanical de-icing system based on shape memory alloys. To understand the functional principle in detail, a functional sample is designed, fabricated and experimentally investigated. With a systematic design approach using a morphological box, an optimal configuration is sought and evaluated that harmonizes all relevant functions in the sense of maximum functional conformity. One selected concept forms the basis for the simulation model, which is used to investigate the influence of different parameters on the thermo-mechanical behavior of the functional sample. The results of the parameter study are used to produce a functional sample for investigating the de-icing ability. The experiments on the functional sample serve to validate and improve the simulation model. The comparison of the measurement data with the model prediction shows a good correlation between measurement and prediction with reasonable deviations. The findings on the test methodology, the manufacturing technology and the system behavior allow the further development of the de-icing concept in subsequent steps.

An Ice Protection System Based on Phased Piezoelectric Transducers

“…For a quick idea of the de-icing performance of the system and of the impact of temperature and ice thickness, the in-plane and out-of-plane shears, τ xy and τ Lamb , were computed. As discussed, these two types of shear play a critical role in removing ice; the former cracking, the latter detaching it [28]. Another important role is played by the Interface Shear Concentration Coefficient, ICCS, applied to the two components of shear [28] and capable of weighting them by the supplied power W:…”

“…As discussed, these two types of shear play a critical role in removing ice; the former cracking, the latter detaching it [28]. Another important role is played by the Interface Shear Concentration Coefficient, ICCS, applied to the two components of shear [28] and capable of weighting them by the supplied power W:…”

Efficient Anti-Icing of a Stable PFA Coating for Wind Power Turbine Blades

“…Presently, deicing methods fall into the categories of active deicing and passive ice suppression . Active deicing techniques include chemical deicing, , mechanical deicing, thermal deicing, − and physical skid prevention. Passive ice suppression methods involve ice suppression coatings, − energy conversion ice suppression, application of lubrication layers, , solar heat pipe method, magnetic ice suppression, microwave heating, and air bubble technology.…”

Trifolium repens L.-Like Periodic Micronano Structured Superhydrophobic Surface with Ultralow Ice Adhesion for Efficient Anti-Icing/Deicing

“…8,9 Therefore, how to efficiently and quickly remove accumulated ice on wind turbine blades has become a critical issue. The existing active deicing technologies mainly include chemical deicing, 10,11 mechanical deicing, 12 thermal deicing, 13,14 etc., but these deicing technologies generally suffer from the disadvantages of environment pollution, low efficiency, and high energy consumption. With the development of anti-icing/deicing technology, passive anti-icing surfaces quickly entered the vision of scholars, such as a superhydrophobic surface, 15−18 a slippery liquidinfused porous surface, 19−21 and an icephobic polymer with low interfacial toughness.…”

“…As a renewable energy with great development potential, wind energy plays a key role in global energy. − Wind turbines are mostly built in high altitudes and cold regions to maximize the energy utilization degree, which makes it inevitable that wind turbine blades will face the problem of ice coverage. − The formation and accumulation of ice seriously affect the efficiency and lifetime of wind turbines and may even pose a potential threat to the safety of surrounding buildings and residents. , Therefore, how to efficiently and quickly remove accumulated ice on wind turbine blades has become a critical issue. The existing active deicing technologies mainly include chemical deicing, , mechanical deicing, thermal deicing, , etc., but these deicing technologies generally suffer from the disadvantages of environment pollution, low efficiency, and high energy consumption …”