Power Optimization of NACA 0018 Airfoil Blade of Horizontal Axis Wind Turbine by CFD Analysis

2020 ◽  
Vol 9 (1) ◽  
pp. 122-139
Author(s):  
Abhishek Choubey ◽  
Prashant Baredar ◽  
Neha Choubey
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Energy Production ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Energy Resources ◽  
Cfd Analysis ◽  
Blade Angle ◽  
Horizontal Axis Wind Turbine ◽  
Computational Fluid Dynamics Cfd

The country or region where energy production is based on imported coal or oil will become more self-sufficient by using alternatives such as wind power. Electricity produced by the wind produces no CO2 emissions and therefore does not contribute to the greenhouse effect. Wind energy is relatively labour intensive and thus creates many jobs. Wind energy is the major alternative of conventional energy resources. A wind turbine transforms the kinetic energy in the wind to mechanical energy in a shaft and finally into electrical energy in a generator. The turbine blade is the most important component of any wind turbine. In this article is considered the single airfoil National Advisory Committee for Aeronautics (NACA) 0018 and a computational fluid dynamics (CFD) analysis is done at different blade angles 0º, 10º, 15º, and 30º with a wind velocity of 4 m/s. The analysis results show that a blade angle of 10º gives the best possible power and pressure and velocity distributions are plotted for every case.

Design and Test Campaign of a Ducted Horizontal Axis Wind Turbine

2018 ◽  
Author(s):  
Massimo Rivarolo ◽  
Alessandro Spoladore ◽  
Carlo Cravero ◽  
Alberto Traverso ◽  
Andrea Freda ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Wind Turbine ◽  
Energy Production ◽  
Numerical Models ◽  
Electrical Power ◽  
Electrical Energy ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Electrical Energy Production

Electrical energy production by wind energy has assumed more and more relevance in the last years. This paper presents the design of a ducted horizontal axis wind turbine, in order to enhance the performance. The study compares the energy production of a ducted turbine to a traditional free turbine, highlighting the different features. In the first part of the work, different possible geometries have been investigated through a quasi-1D model, using correlations from literature to evaluate pressure, velocity and producible electrical power by the wind turbine. A 3D CFD model, in a set of configurations, has confirmed the preliminary results. The most promising geometries have been selected by combining the outputs of the two models. In order to confirm the results obtained by the numerical models, a test rig has been assembled at the wind tunnel of the Polytechnic School of the University of Genoa. Different possible configurations of the wind energy harvesting system have been tested: free turbine, horizontal duct, convergent duct and convergent-divergent ducts (with the turbine installed in the throat section). In particular, the convergent-divergent duct has shown the best results, with an increase factor close to 2.5 in terms of produced power, compared to the reference free turbine. Finally, the results obtained in the experimental campaign have been used to validate the two models (1D and 3D CFD). Considering the advantages in terms of energy production, this kind of configuration can be considered an interesting solution for many different situations, including energy harvesting.

scholarly journals UTILIZATION OF MAXIMUM POWER IN AIRFOIL BLADE OF HORIZONTAL AXIS WIND TURBINE BY THE CONCEPT OF CFD ANALYSIS

2019 ◽  
pp. 266-273
Author(s):  
Abhishek Choubey
Keyword(s):  
Power Systems ◽  
Wind Turbine ◽  
Wind Power ◽  
Mechanical Energy ◽  
Energy Resource ◽  
Electrical Energy ◽  
Maintenance Cost ◽  
Cfd Analysis ◽  
Horizontal Axis Wind Turbine ◽  
Power Generators

Pollution free power production, quick installation and commissioning capability, less operation and maintenance cost and taking benefit of by means of free and renewable energies are all advantages of using wind turbines as an power generators. Along with these advantages, the main drawback of this source is the conditional nature of wind flow. Therefore, using reliable and efficient apparatus is necessary in order to get as much as energy from wind during the limited period of time that it flows strongly. Wind power is the fastest increasing renewable energy resource and wind power penetration in power systems increases at a significant rate. The high access of wind power into power systems in the present and near future will have several impacts on their planning and operation. A wind turbine transforms the kinetic energy in the wind to mechanical energy in a shaft and ultimately into electrical energy in a generator. Turbine blade is the mainly important part of any wind turbine. In this paper we consider single airfoil NACA 0018 and done CFD analysis at different blade angles 00,100,150 and 300 with constant wind velocity of 6 m/s. The analysis results show that blade angle 15º gives best possible power.

scholarly journals Parametric study of a horizontal axis wind turbine with similar characteristics to those of the Villonaco wind power plant

2021 ◽  
Vol 2 (2) ◽  
pp. 51
Author(s):  
Santiago Sánchez ◽  
Victor Hidalgo ◽  
Martin Velasco ◽  
Diana Puga ◽  
P. Amparo López-Jiménez ◽  
...  
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Energy Production ◽  
Electrical Energy ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Wind Speeds ◽  
Electrical Energy Production ◽  
Python Programming ◽  
Selection Of

<p class="JAREAbstract">The present paper focuses on the selection of parameters that maximize electrical energy production of a horizontal axis wind turbine using Python programming language. The study takes as reference turbines of Villonaco wind field in Ecuador. For this aim, the Blade Element Momentum (BEM) theory was implemented, to define rotor geometry and power curve. Furthermore, wind speeds were analyzed using the Weibull probability distribution and the most probable speed was 10.50 m/s. The results were compared with mean annual energy production of a Villonaco’s wind turbine to validate the model. Turbine height, rated wind speed and rotor radius were the selected parameters to determine the influence in generated energy. Individual increment in rotor radius and rated wind speed cause a significant increase in energy produced. While the increment in turbine’s height reduces energy generated by 0.88%.</p>

scholarly journals Prediction of Horizontal Axis Wind Turbine Rotor Performance: Bond Graph Approach

2018 ◽  
Vol 51 ◽  
pp. 01005 ◽  
Author(s):  
Naima Jouilel ◽  
Mohammed Radouani ◽  
Benaissa El Fahime
Keyword(s):  
Wind Turbine ◽  
Mechanical Energy ◽  
Beam Theory ◽  
Electrical Energy ◽  
Turbine Rotor ◽  
Bond Graph ◽  
Power Coefficient ◽  
Horizontal Axis Wind Turbine ◽  
Rayleigh Beam ◽  
Energy Conversion Systems

Modeling wind energy conversion systems is a difficult task that requires the use of a unified language gathering all aspect of energies involved such as kinetic energy, mechanical energy, and electrical energy. Bond Graph methodology is an appropriate tool to analyze wind turbine dynamic behavior since the whole system is modelled in the same frame. Herein, a methodology for HAWT's rotor modeling is proposed based on Bond Graph, aerodynamic laws and Rayleigh Beam theory. It takes into consideration the profile, chord, and twist change along the blade. The model is validated using 20-Sim software and then compared to other models from literature. Simulation results show a better value of power coefficient in comparison with works using the same tools.

scholarly journals Aerodynamic Performances of Small Scale Horizontal Axis Wind Turbine Blades for Applications in Malaysia

2019 ◽  
Vol 8 (4) ◽  
pp. 9557-9562
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Power Efficiency ◽  
Energy Production ◽  
Turbine Blades ◽  
Maximum Power ◽  
Small Scale ◽  
Wind Condition ◽  
Horizontal Axis Wind Turbine

Wind energy is one of the most viable options for clean and sustainable energy production. In Malaysia where wind source has been considered scarce, the capacity of installed wind energy production is very low. However, studies have shown that it is worthwhile to produce wind energy at several potential sites in this country. For this purpose, it is crucial that the designed turbine blade gives the highest possible blade power efficiency while structure wise, the turbine blade need to be effective in terms of avoiding possible failures. The maximum power efficiency means the blade does not only provide profile that gives maximum sliding ratio but also it must operate at the corresponding angle of attack, 𝜶𝒎𝒂𝒙 that gives this ratio. At the same time, the blade must be small enough to have low weight to allow it to self-start in the low wind region. In this paper, the study is focused on the aerodynamic aspect of the design of wind turbine blade that will give the maximum power efficiency. Four factors that determine aerodynamic performance of the turbine blades are discussed: the wind condition, the airfoil profile, the blade geometry and the losses. In most of the factor, adjustments are made such that the blade operates at around the 𝜶𝒎𝒂𝒙 so that the sliding ratio and thus power coefficient are maximum.

scholarly journals Wind Energy Potential on A Highrise Building: A Preliminary Study

2021 ◽  
Vol 88 (3) ◽  
pp. 20-30
Author(s):  
Nofirman Firdaus ◽  
Bambang Teguh Prasetyo ◽  
Hasnida Ab-Samat ◽  
Prayudi ◽  
Hendri ◽  
...  
Keyword(s):  
Wind Energy ◽  
Weibull Distribution ◽  
Wind Turbine ◽  
Energy Production ◽  
Energy Resource ◽  
Limited Area ◽  
Wake Effect ◽  
Horizontal Axis Wind Turbine ◽  
High Rise ◽  
Power Curves

Indonesia has an abundant renewable energy source. One of them is wind energy resources. Unfortunately, Indonesia's wind energy resource is not fully utilized, especially for application in high-rise buildings. The paper investigates the potential of energy production from the horizontal-axis wind turbine (HAWT) and the vertical-axis wind turbine (VAWT) on the rooftop of a university building in Indonesia. The wind speed data were measured on the rooftop of the building for seven months. The data was analyzed using Weibull distribution. Based on the probability density function of the Weibull distribution, the potential energy production was calculated using the power curves from the manufacturer. Comparing energy production between HAWTs and VAWTs has shown that VAWTs can produce more energy than HAWTs. Using six turbines, VAWTs can produce 48,476 kWh. On the other hand, with four turbines, HAWTs can produce 41,729 kWh. The reason is that VAWT requires shorter distance requirements for inter-turbine and between rows. Therefore, VAWT can use more turbines than HAWT in the limited area. In conclusion, VAWT for high-rise buildings is more preferred because VAWT can generate more energy. Further study should investigate the optimal configuration with varying the wind direction and quantifying the wake effect on power output.

scholarly journals Practical electrical energy production to solve the shortage in electricity in Palestine and Pay Back period

2019 ◽  
Vol 9 (6) ◽  
pp. 4610
Author(s):  
Ahmed S A Badawi ◽  
Nurul Fadzlin Hasbullah ◽  
Siti Yusoff ◽  
Aisha Hashim ◽  
Mohammed Elamassie
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbine ◽  
Energy Production ◽  
Electrical Energy ◽  
Payback Period ◽  
Small Scale ◽  
Average Wind Speed ◽  
Electrical Energy Production

In this paper power energy had been estimated based on actual wind speed records in a coastal city in Palestine Ashdod. The main aims of this study to determine the feasibility of wind turbine and to estimate payback period. Therefore, to encourage investment in renewable energy in Palestine. The daily average wind speed data had been analyzed and fitted to the Weibull probability distribution function. The parameters of Weibull had been calculated by author using Graphical method the applied example wind turbine is 5kw wind turbine generator this is suitable turbine for small scale based on wind speed records on the coastal plain of Palestine. This study calculated the energy that can produce from wind turbine to estimate the revenue of any possible project in wind energy conversion system based on unit area. Energy has been calculated wind energy using two different method based on Weibull data and measured data. The total amount of energy for 2010 is 10749.8 kw.hr/m2 based on measured wind speed. Payback period for the project in wind energy turbines is around 3 years which make the generation electricity possible for small scale but not commercial. This study will lead to assess the wind energy production in Palestine to encourage investment in renewable energy sectors.

Wind Energy Production Using an Optimized Variable Pitch Vertical Axis Rotor

2014 ◽  
Author(s):  
Carlos M. Xisto ◽  
José C. Páscoa ◽  
Jakson A. Leger ◽  
Michele Trancossi
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Load Distribution ◽  
Energy Production ◽  
Vertical Axis ◽  
Cfd Analysis ◽  
Vertical Axis Wind Turbine ◽  
Energy Converter ◽  
Numerical Tools ◽  
New Generation

The Cycloidal Vertical Axis Wind Turbine is based on a self-adjustable pitch concept that automatically pitches the blade to improve the azimuthal load distribution and energy conversion. In nominal operating point, theoretical and CFD analysis have demonstrated that a cycloidal turbine can be more efficient than classical VAWTs, being able to produce more energy at low and intermediate Tip-Speed-Ratios. This innovative cycloidal wind turbine can also eliminate some problems of self-starting in VAWTs. In the following paper we propose the introduction of a new generation of wind energy converter system. We will show, trough the use of numerical tools, that the proposed system is more efficient than classical VAWTs.

scholarly journals PENGARUH VARIASI JUMLAH BLADE TURBIN ANGIN TERHADAP OUTPUT DAYA LISTRIK

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
I Kade Wiratama ◽  
Made Mara ◽  
Arif Mulyanto ◽  
Muliadi Harianhady
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbine ◽  
Output Power ◽  
Electrical Energy ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Generating Equipment ◽  
Electrical Output

Some area in Indonesia such as southern part of Sumatra to Nusa Tenggara have big enough wind speed to produce electrical energy by using wind turbine. However, the potential resources are not yet fully developed, and only 1.4 GW electrical energy has been generating in the Indonesia region. Most of the wind energy generating equipment is designed to the European wind speed which is   10 - 30 knot. So, it is very important to modify the such equipment to be able to implement in Indonesia area which is have a lower wind speed.The purpose of this research is to know the influence of number of blades and wind speed to electricity generated by horizontal axis wind turbine with blade taper inversed linear.The result showed that the highest electrical output power was 2,02 watt produced by 5 blades and 3,5 m/s wind speed. The lowest electrical output power was 2,347 watt achieved by using 3 blades and 2,5 m/s wind speed.

scholarly journals Rancang Bangun Turbin Angin Sumbu Horizontal Pada Kecepatan Angin Rendah Untuk Meningkatkan Performa Permanent Magnet Generator

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Teuku Multazam ◽  
Andi Mulkan
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Permanent Magnet ◽  
Wind Power ◽  
Power Plants ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Horizontal Axis Wind Turbine ◽  
Average Wind Speed ◽  
Permanent Magnet Generator

<p class="IJOPCMKeywards"><span lang="EN-US">Wind power is dominant energy converted into electricity through wind turbine generators used in wind energy conversion systems. Technological developments produce various types of generators for use in wind power plants of various scales. Permanent magnet generator (PMG) has advantage of being able to produce electrical energy of 500 watts at rotation 600 rotate per minute with an input wind speed of 2.5-12 m/s. The potential for average wind speed throughout the year in Aceh is around 1.5-6.5 m/s cannot be generate electric power because mechanical energy from turbine rotation is not sufficient to meet the minimum demand for RPM generators. The design of a horizontal axis wind turbine (HAWT) with Air Foil Naca 2410 is used to increase the efficiency of the turbine rotation. It’s influenced by variations in the number of blades and material used. Stages of simulation are prioritized to get efficient variations of the number of blades and the most effective material testing is performed. The results showed that variation of the axis of a three-blade wind turbine type has a higher coefficient of power that is 50 percent compared the other, the type of material wind turbines made from pinus more optimal than fiberglass</span><span lang="EN-US">.</span></p>

Sign in / Sign up

Export Citation Format

Share Document