Anti-icing and de-icing techniques for wind turbines: Critical review

Parent, Olivier; Ilinca, Adrian

doi:10.1016/j.coldregions.2010.01.005

Cited by 700 publications

(438 citation statements)

References 7 publications

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“…La détection du givre par l'analyse des dommages, par exemple le bris des mâts météorologiques ou lignes à haute tension dû au flambage ou la possible résonance causée par masses supplémentaires, pourrait servir comme un indicateur supplémentaire pour des sites où le givrage lourd n'avait pas été prévu (Parent, 2010). Pour des sites sans une alimentation suffisante d'énergie, une autre possibilité est l'utilisation des anémomètres à hélice.…”

Section: Les Faiblesses De L'information Actuelle Sur Jubanyunclassified

“…Cela empêche la détection suivante (Laakso et al 2009). de givrage lorsqu'il n'y a pas du vent (Parent, 2010).…”

Section: Détecteurs Du Givrage Atmosphériqueunclassified

“…II a été observé que la sévérité de la présence locale de givre dépend particulièrement de la hauteur du site en relation à la hauteur moyenne des environs (Laakso et al, 2009;Parent, 2010), peut-être parce de grandes différences d'altitude favorisent la formation de nuages ou brouillards givrants en raison de la « montée orographique » ou « montée forcée » de l'air qui favorise l'expansion et abaisse la température des gouttelettes qu'il emporte (Comeau, 2008).…”

Section: Détecteurs Du Point De Roséeunclassified

“…Un détecteur du point de rosée tel que décrit pourrait fournir des informations précieuses, parce que dans la pratique la température de l'air est au point de gel presque tout le temps lorsque les nuages givrants se produisent (Parent, 2010).…”

Section: Détecteurs Du Point De Roséeunclassified

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Systèmes hybrides éolien-diesel en climat froid :

Corral-Rodriguez¹

2012

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Section: Les Faiblesses De L'information Actuelle Sur Jubanyunclassified

“…Cela empêche la détection suivante (Laakso et al 2009). de givrage lorsqu'il n'y a pas du vent (Parent, 2010).…”

Section: Détecteurs Du Givrage Atmosphériqueunclassified

Section: Détecteurs Du Point De Roséeunclassified

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Systèmes hybrides éolien-diesel en climat froid :

Corral-Rodriguez¹

2012

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“…Although wind is plentiful in cold climate, icing has been key to energy losses. Wind turbine manufacturers have already developed cold climate mitigation packages and there are only a few different de-icing and anti-icing solutions available on the market, but the icing of blades still requires significant work (Parent and Ilinca, 2011). There are several ice detection systems commercially available, but have proven inadequate.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Power Generation Performance due to Effects of Various Ice Shapes and Accretions on Wind Turbine Blades

Bagade¹,

Mo²,

Mazher³

2015

Energy Research Journal

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In today's world, green energy has become a key initiative as an alternative energy resource. Wind turbines are widely used to harvest wind energy in seasonal and cold environments. Although efficient, cold weather conditions negatively affects wind turbine operations due to ice formation. Damage from icing is seen on blade-tips when super-cooled water droplets that form in colder environments rapidly freeze and accumulate. Different forms of ice structures are formed along the leading edge to the trailing edge of the turbine blade and are classified into horn, rime and glaze ice. These various ice structures can cause power losses, mechanical and electrical failures and pose serious safety hazards (e.g., ice throwing). Ongoing efforts have been in place to develop anti-icing and de-icing strategies, but only a few are available on the market. In this computational study using ANSYS 14, a variable pitched National Renewable Energy Laboratory (NREL) and National Advisory Committee for Aeronautics (NACA) airfoils are used to determine the effects of various ice formations along the cord of turbine blade. Ice accretions on turbine blade can cause significant performance issues such as decreased lift and increased drag leading to performance and energy losses. Understanding the flow behavior of iced airfoil is critical in determining what geometric features of ice contributes to the performance degradation and aerodynamic failures in wind turbines. This study may help optimize future designs and implementation of ice mitigations systems to maximize turbine power output.

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Surface air relative humidities spuriously exceeding 100% in CMIP5 model output and their impact on future projections

et al. 2017

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In 17 out of the 29 Phase 5 of Coupled Model Intercomparison Project (CMIP5) climate models examined in this work, near‐surface air relative humidity (RH) frequently exceeded 100% with respect to ice in polar areas in winter. The degree of supersaturation varied considerably across the models, and the same evidently applies to the causes of the phenomenon. Consultations with the modeling groups revealed three categories of explanations for supersaturation occurrence: specification of RH with respect to ice rather than liquid water; inconsistencies in the determination of specific humidity and air temperature for the near‐surface level; and the nonlinearity of saturated specific humidity as a function of temperature. Modeled global warming tended to reduce the artificial supersaturations, inducing a spurious negative trend in the future RH change. For example, over East Antarctica under Representative Concentration Pathway 8.5, the multimodel mean RH would decrease by about 10% by the end of the ongoing century. Truncation of overly high RHs to a maximum value of 100% cut the RH response close to zero. In Siberia and northern North America, truncation even reversed the sign of the response. The institutes responsible for the CMIP6 model experiments should be aware of the supersaturation issue, and the algorithms used to produce near‐surface RH should be developed to eliminate the problem before publishing the RH output data.

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Anti-icing and de-icing techniques for wind turbines: Critical review

Cited by 700 publications

References 7 publications

Systèmes hybrides éolien-diesel en climat froid :

Systèmes hybrides éolien-diesel en climat froid :

Degradation of Power Generation Performance due to Effects of Various Ice Shapes and Accretions on Wind Turbine Blades

Surface air relative humidities spuriously exceeding 100% in CMIP5 model output and their impact on future projections

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