Design &amp; optimization of a small wind turbine blade for operation at low wind speed

Chaudhary, Manoj Kumar; Roy, Anindita

doi:10.1260/1708-5284.12.1.83

Cited by 35 publications

(25 citation statements)

References 20 publications

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“…Airfoil SG 6043 has been chosen in their research. Their experiments for varying chord and bent blade with solids ranging from 2% to 30% and blade numbers 3, 5, 7, 12 and 15 with rotor diameter of 2 m were performed [13].The wind turbine generated, on average, a power coefficient (Cp) of 0.255 (8,22 m) at a wind speed of 6 m / s (18° pitch) by The maximum C p based on 10 s information was 0.291 with the free stream speed of 6 m / s [14].…”

Section: E Small Wind Turbine Rotor Bladesmentioning

confidence: 99%

Design and Fabrication of Small Horizontal axis wind Turbine Rotors at Low Reynolds Number

Chaudhary*¹,

Subramanian²

2019

IJITEE

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This research paper presents a design and fabrication of 100 Watt small horizontal axis wind turbine with 0.24 m and 0.35 m rotor radius and tip speed ratio varies from 2 to 10 was designed and development for operated at low wind speed with Low Reynolds number. In this paper, a new airfoil profile was designed and developed, it's denoted by MK115. The numerical and experimental analysis for 6 airfoils using Xfoil software was conducted with a view to evaluating the lift-to-drag ratio and angle of attack by means of the SD7024, SG6043, NACA2412, S1210, E213, and New Airfoil (MK115) tested. In simulation, new MK115 airfoil was the most convenient airfoil to start high energy production for low-wind applications, on the Reynolds number 25000, 50000, 75000, and 100000 in improved airfoil (MK115) Lmax of 0.92, 1.25, 1.69, 1.67 at Re=25k, 50k, 75k and 100k for an angle of attack is equal to 10 0 .A maximum lift to drag ratio (Cl/Cd) of 7,16,50,63 at Re=25k, 50k, 75k and 100k for New airfoil (MK115) at angle of attack (α) =4 0 , 4 0 , 8 0 , 8 0 . SG6043, NACA2412, E214, SD7034, S1210 and MK115 (New airfoil) have the Maximum C p =0.37, 0.36, 0.4, 0.39, 0.44, and 0.44 at tip speed ratio (λ) =6 for Reynolds number is equal to 100000. MK115, Maximum Torque obtained 0.9744 Nm, 1.389 Nm and 2.4866 Nm at blade angle =0, 15 and 30 degrees respectively. Power coefficient (Cp) =0.51, 0.5, 0.46, and 0.4 at Rotor shaft angle=0 0 , 5 0 , 10 0 , and 15 0 respectively for the new airfoil results. tests an Open type wind tunnel. An Xfoil analysis to obtain further data on the flow characteristics was also conducted. (MK115) airfoil have C

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Section: E Small Wind Turbine Rotor Bladesmentioning

confidence: 99%

Design and Fabrication of Small Horizontal axis wind Turbine Rotors at Low Reynolds Number

Chaudhary*¹,

Subramanian²

2019

IJITEE

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“…Chaudhary and Roy [4] presented the design and optimization of the rotor blade performance for a 400W small wind turbine at the lower values of operating wind speed based on blade element momentum theory (BEM). The main focus was on the relationship between solidity, pitch angle, tip speed ratio, and maximum power coefficient.…”

Section: Literature Reviewmentioning

confidence: 99%

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal–Axis Wind Turbine

Khaled¹

2017

AJME

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The wind turbine blades are the main part of the rotor. Extraction of energy from wind depends on the design of the blade. In this paper, a design method based on Blade Element Momentum (BEM) theory is explained for small horizontalaxis wind turbine model (HAWT) blades. The method was used to optimize the chord and twist distributions of the wind turbine blades to enhance the aerodynamic performance of the wind turbine and consequently, increasing the generated power. A Fortran program was developed to use (BEM) in designing a model of Horizontal-Axis Wind Turbine (HAWT). NACA 4412 airfoil was selected for the design of the wind turbine blade. Computational fluid dynamics (CFD) analysis of HAWT blade cross section was carried out at various blade angles with the help of ANSYS Fluent. Present results are compared with other published results. Power generated from wind turbine increases with increasing blade angle due to the increase in airvelocity impact on the wind turbine blade. For blade angle change from 20° to 60°, the turbine power from wind has a small change and reaches the maximum when the blade angle equals to 90°. Thus, HAWT power depends on the blade profile and its orientation.

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“…Guidelines and general indications on blade design can be in fact found in the available literature [9,10]. For instance, various aspects of aerodynamic design and optimization were discussed in [11]. Such studies, however, do not account for control or dynamic inflow conditions [12].…”

Section: Introductionmentioning

confidence: 99%

On the Use of Modern Engineering Codes for Designing a Small Wind Turbine: An Annotated Case Study

et al. 2021

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While most wind energy comes from large utility-scale machines, small wind turbines (SWTs) can still play a role in off-grid installations or in the context of distributed production and smart energy systems. Over the years, these small machines have not received the same level of aerodynamic refinement of their larger counterparts, resulting in a notably lower efficiency and, therefore, a higher cost per installed kilowatt. In an effort to reduce this gap during the design of a new SWT, the scope of the study was twofold. First, it aimed to show how to combine and best exploit the modern engineering methods and codes available in order to provide the scientific and industrial community with an annotated procedure for a full preliminary design process. Secondly, special focus was put on the regulation methods, which are often some of the critical points of a real design. A dedicated sensitivity analysis for a proper setting is provided, both for the pitch-to-feather and the stall regulation methods. In particular, it is shown that stall regulation (which is usually preferred in SWTs) may be a cost-effective and simple solution, but it can require significant aerodynamic compromises and results in a lower annual energy output in respect to a turbine making use of modern stall-regulation strategies. Results of the selected case study showed how an increase in annual energy production (AEP) of over 12% can be achieved by a proper aerodynamic optimization coupled with pitch-to-feather regulation with respect to a conventional approach.

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Design & optimization of a small wind turbine blade for operation at low wind speed

Cited by 35 publications

References 20 publications

Design and Fabrication of Small Horizontal axis wind Turbine Rotors at Low Reynolds Number

Design and Fabrication of Small Horizontal axis wind Turbine Rotors at Low Reynolds Number

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal–Axis Wind Turbine

On the Use of Modern Engineering Codes for Designing a Small Wind Turbine: An Annotated Case Study

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