Characteristic Analysis of Horizontal Axis Wind Turbine Using Airfoil NACA 4712

Susilo, Bili Darnanto; Jatisukamto, Gaguk; Kustanto, Muh Nurkoyim

doi:10.17977/um016v3i22019p096

Cited by 3 publications

(3 citation statements)

References 2 publications

(2 reference statements)

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“…An investigation has been carried out by Bili Darnanto Susilo et al [23] on NACA 4712 and NACA 4412 aerofoils using Q-blade software and CFD simulations at various angles of attack to obtain the results like lift coefficient, drag coefficient, C L /C D ratio. It has been concluded that NACA4712 showed higher lift, power coefficients, and C L /C D ratios in comparison with NACA4412.…”

Section: Validation Of Q-blade Simulation Resultsmentioning

confidence: 99%

Implementation of Taguchi method for designing a robust wind turbine

Kaushik

Shankar²,

Rashid³

et al. 2022

tjes

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The current paper demonstrates the design parameters and tolerances for a horizontal axis wind turbine. Here we have adopted one of the DOE (design of experiment) method namely Taguchi method, a traditional approach for designing a robust wind turbine. For optimization purpose, the evaluation and estimation of various problems i.e; constrained as well as unconstrained have been done using Taguchi method. For the derivation of design parameters lift coefficient (CL), drag coefficient (CD) and power coefficient (CP) the L-9 Orthogonal array (OA) comprising of 4 parameters each with three levels (NACA aerofoil type, Mach number, Reynolds number and angle of attack) are considered. Open source Q-Blade designing software is used for determining power, lift and drag coefficients of the wind turbine. The combination of GRA and orthogonal arrays are used for attaining the optimized parameters. In this paper an investigation has been carried out on the specific NACA aerofoils 4412, 4712 and 4421. Among all the aerofoils NACA 4712 has showed the impressive results in terms of maximum lift coefficient of 0.9491and minimum drag coefficient of 0.02601. Also from signal to noise plots it can be inferred that the most influenced parameter for CL and CD is Mach number and Aerofoil for CP.

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Section: Validation Of Q-blade Simulation Resultsmentioning

confidence: 99%

Implementation of Taguchi method for designing a robust wind turbine

Kaushik

Shankar²,

Rashid³

et al. 2022

tjes

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“…Cp yang mampu dicapai oleh NACA 4712 ini yaitu 0.495 di TSR 3.25. Penelitian Airfoil NACA 4712 ini juga dilakukan oleh Susilo [15] pada turbin angin HAWT tiga sudu dengan komparasi NACA 4412 dengan menggunakan software Qblade, hasilnya NACA 4712 memiliki nilai coefficient lift (Cl) yang lebih tinggi daripada NACA 4412 yaitu sebesar Cl = 1.696 dibandingkan NACA 4412 yang memiliki Cl = 1.628. Dari simulasi [15] juga didapatkan pada kecepatan angin 7.66 m/s NACA 4712 memiliki Cp = 0.49929 dan NACA 4412 memiliki Cp = 0.395365 Dalam upaya meningkatkan power coefficient (Cp) turbin angin peneliti telah melakukan modifikasi berupa sudut pitch, bentuk sudu/rotor, dan melakukan kombinasi turbin.…”

Section: Pendahuluanunclassified

“…Penelitian Airfoil NACA 4712 ini juga dilakukan oleh Susilo [15] pada turbin angin HAWT tiga sudu dengan komparasi NACA 4412 dengan menggunakan software Qblade, hasilnya NACA 4712 memiliki nilai coefficient lift (Cl) yang lebih tinggi daripada NACA 4412 yaitu sebesar Cl = 1.696 dibandingkan NACA 4412 yang memiliki Cl = 1.628. Dari simulasi [15] juga didapatkan pada kecepatan angin 7.66 m/s NACA 4712 memiliki Cp = 0.49929 dan NACA 4412 memiliki Cp = 0.395365 Dalam upaya meningkatkan power coefficient (Cp) turbin angin peneliti telah melakukan modifikasi berupa sudut pitch, bentuk sudu/rotor, dan melakukan kombinasi turbin. Penelitian dengan variasi sudut pitch 0-30 0 pada sudu darrieus untuk mengetahui performa turbin angin savonius Type S -darrieus Type H [16] hasilnya sudut 30 0 memeiliki Cut in speed terendah dan memiliki trend semakin besar sudut pitch maka semakin kecil Cut in speed nya sehingga semakin mudah turbin untuk berputar pada kecepatan angin rendah.…”

Section: Pendahuluanunclassified

Analisis Performa Turbin Angin Vawt (Vertical Axis Wind Turbine) Tipe Hybrid Savonius Darrieus Naca 4712

Trifiananto

Putra

Ramadhan

2022

RTR

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A wind turbine is a device that converts wind energy into mechanical energy to produce electric power. Wind turbines have a simple working principle, which is to convert wind energy into mechanical energy in the windmill, then the rotation of the turbine0makes the rotor on the generator rotate and generate electricity. There are 2 types of wind turbines: vertical axis wind turbine and horizontal axis wind turbine. This study aims to determine the performance of the medium-scale VAWT hybrid savonius darrieus NACA 4712 wind turbine. The hybrid wind turbine is a combination of savonius and darrieus wind turbines to increase efficiency by utilizing the drag of the savonius turbine and lift force from the darrieus wind turbine. This study used an experimental method. The fan is used to vary the wind speed. The wind speed used ranges from 5, 5.5, 6, 6.5, 7, 7.1,7.2,7.3 m/s. This savonius darrieus hybrid wind turbine can produce efficiency of 0.037 at wind speed of 5 m/s with an initial torque of 0.088 N/m. The maximum rotation in this hybrid turbine study 118 Rpm was obtained at a wind speed of 7.3 m/s.

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Theoretical and computational studies on the optimal positions of NACA airfoils used in horizontal axis wind turbine blades

Aklilu¹,

Bright

Adali³

2022

Journal of Energy Systems

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This paper presents a theoretical and computational study to determine the optimal positions of airfoils along the length of the horizontal axis wind turbine blade. We used four and five-digit NACA airfoils to model a 54-meter blade. The lift, drag coefficient, and lift-to-drag ratio of each airfoil are determined by using QBlade software. The aerodynamic performance of the airfoils is studied based on the blade element momentum theory, and Matlab software is used for numerical implementation. The velocity and pressure distributions on each airfoil are assessed using computational fluid dynamics. We implement the thickness distribution techniques to adjust the positions of the airfoils along the length of the blade. It is noted that stresses reach their maximum values at the root and minimum at the tip section. Thus, the thicker (NACA 4420) and thinner (NACA 23012) airfoils are set at 20% of the maximum chord and 91.11% at the tip sections of the blades. The remaining sections of the blade are configured using linear interpolation methods. Specifically, the maximum chord length of the new design is reduced by 18.06% compared to the NACA 23012 rotor blade. Finally, the recommended tip speed ratio for the designed rotor blade is estimated using the graphs of the normal and tangential forces, thereby producing a safe and efficient design.

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Characteristic Analysis of Horizontal Axis Wind Turbine Using Airfoil NACA 4712

Cited by 3 publications

References 2 publications

Implementation of Taguchi method for designing a robust wind turbine

Implementation of Taguchi method for designing a robust wind turbine

Analisis Performa Turbin Angin Vawt (Vertical Axis Wind Turbine) Tipe Hybrid Savonius Darrieus Naca 4712

Theoretical and computational studies on the optimal positions of NACA airfoils used in horizontal axis wind turbine blades

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