Proceedings ArticleDOI
Wind turbine blade profile thickness effects on atmospheric ice accretion
Muhammad S. Virk
- pp 96-99
TLDR
In this paper, a numerical study has been carried out to understand the effects of wind turbine blade profile geometric thickness on resultant ice accretion, which showed a decrease in ice growth and thickness at leading edge of the blade profile with the increase of its thickness.Abstract:
Choice of blade profile (airfoil) is a crucial step in wind turbine design for cold climate operations in order to obtain a competitive performance and to make a tradeoff between aerodynamic performance and structural requirements. A numerical study has been carried out to understand the effects of wind turbine blade profile geometric thickness on resultant ice accretion. Five different blade profiles (airfoils) were used for this study. Based upon the flow field calculations and the super cooled water droplet collision efficiency, rate and shape of accreted ice was simulated for dry ice conditions on each airfoil. Analysis showed a change in airflow and droplet behavior with the blade profile thickness. Results show a decrease in ice growth and thickness at leading edge of the blade profile with the increase of its thickness.read more
Citations
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Proceedings ArticleDOI
Ice extraction from wind turbine using flow of hot air through blade
Datta. S. Chavan,Shubham Kumar Mishra,Rahul Yadav,Anupama Singh,Jaywant Sankpal,Himanshu,Siddhharth +6 more
TL;DR: In this paper, the ice accumulated on the wind turbine blade is removed by passing hot air through the blade, the ice melts and falls down, and the process of deicing is fast.
Journal ArticleDOI
Experimental and computational study of ice accretion effects on aerodynamic performance
G. Prasad,J. Bruce Ralphin Rose +1 more
TL;DR: In this article, an actual representation of ice accretions, which are important during the certification process, was analyzed in a low-speed subsonic wind tunnel testing facility to evaluate the influence of various ice shapes around the airfoil sections.
Proceedings ArticleDOI
Tree mounted wind turbine
TL;DR: In this paper, the wind turbine is fixed to the tree stem and the energy generated may be stored in a battery kept in a house near by the tree, which can be used for temporary electrical supply for research work in the industry, forest, rural area etc.
Proceedings ArticleDOI
Ice elimination from wind turbine blade using induction heating
Datta. S. Chavan,Rahul Yadav,Priyanka,Anupama Singh,Jaywant Sankpal,Himanshu,Siddhharth,Shubham Kumar Mishra +7 more
TL;DR: In this article, high frequency induction heating is used for deicing the wind turbine blade and the strength of the blade is also increased due to the coil and the heat generated in the coil due to induction principle.
Proceedings ArticleDOI
Ice removal from wind turbine using hot water flow through blade
Datta. S. Chavan,Rajendra Pal,Jaywant Sankpal,Siddhharth,Vivek Sahil,Anupama Singh,Priyanka,Bhupendra Singh Gadhwal +7 more
TL;DR: In this article, a deicing mechanism for wind turbine is developed, in which hot water is used to remove the ice accumulated on the wind turbine blades and a water pump keeps the water circulating through the turbine blade until the ice melts and falls down.
References
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Proceedings ArticleDOI
Roughness Sensitivity Considerations for Thick Rotor Blade Airfoils
TL;DR: In this paper, the performance of the airfoil series DU, FFA, S8xx, AH, Riso and NACA is reviewed for wind turbine blades at mid-span and inboard locations.
Journal ArticleDOI
Effect of Rime Ice Accretion on Aerodynamic Characteristics of Wind Turbine Blade Profiles
TL;DR: In this paper, a numerical study of rime ice accretion and resultant flow field characteristics of blade profiles for four different fixed speed, stall controlled wind turbines was performed, and the results showed an increase in both lift and drag coefficients of wind turbine blade profiles with the leading edge ice.
Experimental and computational ice shapes and resulting drag increase for a NACA 0012 airfoil
Jaiwon Shin,Thomas H. Bond +1 more
TL;DR: In this article, the authors used the 2D LEWICE/IBL code to predict drag increases as the ice shape changes from a rime shape to a glaze shape.
Journal ArticleDOI
Experimental Simulation of Runback Ice
TL;DR: In this paper, a series of wind-tunnel tests on a NACA 0012 airfoil was conducted to simulate the aerodynamic effects of runback ice, and the results showed a great degree of sensitivity of the air flow characteristics to the shape and the chordal position of the ice accretion.
Title: Flow Separation Control of Thick Airfoil by a Trapped Vortex
Mohammad Mashud,Mausumi Ferdous +1 more
TL;DR: In this article, a 2D model equipped with a span wise oriented circular cavity has been investigated to control the flow separation of an airfoil by trapped vortex cavity on the upper surface without steady suction.