Atmosferik Buzlanmanın Kontrol Edilen Rüzgar Türbin Performansına Etkileri

2022-12-26
Icing deteriorates the performance of wind turbine rotors by changing the blade airfoils' shapes. It decreases the lift, increases the drag, and subsequently causes power production losses and load increase on turbines' structures. In the present study, the effects of atmospheric icing on the performance of a controlled large-scale wind turbine is estimated through simulations. To achieve the target, the MS (Mustafa Sahin) Bladed Wind Turbine Simulation Model is used for the analyses of the National Renewable Energy Laboratory (NREL) 5 MW turbine with and without iced blades. Icing modeling is realized based on its main characteristics and its effects on blade aerodynamics. Turbine performance estimations are carried out at various uniform wind speeds between cut-in and cut-out wind speeds and are presented in terms of various turbine parameters such as power, thrust force, blade pitch angle, and rotor speed. Simulation evaluations show that even a light ice accretion along the blades varies the turbine characteristics and dynamics, changes the cut-in and rated wind speeds, and affects the aforementioned turbine parameters differently in the below and above rated regions.
IOP Conference Series: Earth and Environmental Science, Volume 1121, 2022 8th International Conference on Environment and Renewable Energy 25/02/2022 - 27/02/2022 Hanoi, Vietnam

Suggestions

Experimental investigation of the helicopter blade tip shape effects on aerodynamic performance and tip vortex characteristics
Uluocak, Sinem; Perçin, Mustafa; Uzol, Oğuz; Department of Aerospace Engineering (2019)
This study experimentally investigates the effects of different rotor blade tip shapes on the rotor aerodynamic performance and the tip vortex characteristics in hovering flight. Force, torque and flow field measurements were performed on a 1.3 m diameter 5-bladed model rotor for four different blades: rectangular (RECT), anhedral (ANHD), tapered-swept (TAPER) and tapered-swept-anhedral (TSA). Thrust and torque measurements show that all tip modifications have a positive effect on the aerodynamic performance wh...
Computer-aided design of horizontal-axis wind turbine blades
Duran, Serhat; Albayrak, Kahraman; Department of Mechanical Engineering (2005)
Designing horizontal-axis wind turbine (HAWT) blades to achieve satisfactory levels of performance starts with knowledge of the aerodynamic forces acting on the blades. In this thesis, HAWT blade design is studied from the aspect of aerodynamic view and the basic principles of the aerodynamic behaviors of HAWTs are investigated. Blade-element momentum theory (BEM) known as also strip theory, which is the current mainstay of aerodynamic design and analysis of HAWT blades, is used for HAWT blade design in thi...
Genetic algorithm based aerodynamic shape optimization of wind turbine rotor blades using a 2-d panel method with a boundary layer solver
Polat, Özge; Tuncer, İsmail Hakkı; Sezer Uzol, Nilay; Department of Aerospace Engineering (2011)
This thesis presents an aerodynamic shape optimization methodology for rotor blades of horizontal axis wind turbines. Genetic Algorithm and Blade Element Momentum Theory are implemented in order to find maximum power production at a specific wind speed, rotor speed and rotor diameter. The potential flow solver, XFOIL, provides viscous aerodynamic data of the airfoils. Optimization variables are selected as the sectional chord length, the sectional twist and the blade profiles at root, mid and tip regions of...
Structural optimization of composite helicopter rotor blades
Işık, Alperen Ayberk; Kayran, Altan; Department of Aerospace Engineering (2018)
Structural optimization of a helicopter rotor blade with uniform aerodynamic surface and twist at the functional region is performed for weight minimization subject to various constraints relevant to helicopter rotor blades. The genetic algorithm based optimization is performed only for the functional region of the blade. Design variables are taken as the number of unidirectional S-glass layers in the spar cap, position of the spar web with respect to the leading edge, nose mass diameter and position of the...
SIMULATING DRY SLIDING FRICTION WITH BLOCK-SPRING MODELS
AMIREGHBALI, AYDIN; Çöker, Demirkan; Department of Aerospace Engineering (2023-1-12)
Dry sliding friction occurs not only in engineering applications such as jet turbine disk-blade joints, dry friction dampers, and rocket engine gimbals but also along geological faults. In this thesis, dry sliding friction is studied using the Maxwell-slip model and the Burridge-Knopoff model, which consist of block-spring units pulled on a rigid flat by a driver. The initial spring extension, stiffness, and normal load values of the block-spring units are specified by different probabilistic methods. The o...
Citation Formats
M. Şahin, “Atmosferik Buzlanmanın Kontrol Edilen Rüzgar Türbin Performansına Etkileri,” Ha-Noi, Vietnam, 2022, vol. 1121, Accessed: 00, 2023. [Online]. Available: https://iopscience.iop.org/article/10.1088/1755-1315/1121/1/012011.