Micro-Small-Scale Horizontal Axis Wind Turbine Design and Performance Analysis for Micro-Grids Applications

ABSTRACT Generally, the environmental wind speeds in urban areas are relatively low due to clustered buildings. At low wind speeds, an aerodynamic stall occurs near the blade roots of a horizontal axis wind turbine (HAWT), leading to decay of the power coefficient. The research targets to design canards with optimal parameters for a small-scale HAWT system operated at variable rotational speeds. The design was to enhance the performance by delaying the aerodynamic stall near blade roots of the HAWT to be operated at low wind speeds. For the optimal design of canards, flow fields of the sample blades with and without canards were both simulated and compared with the experimental data. With the verification of our simulations, Taguchi analyses were performed to seek the optimum parameters of canards. This study revealed that the peak performance of the optimized canard system operated at 540 rpm might be improved by ∼35%.

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Perancangan Prototipe Turbin Angin Sumbu Horizontal Skala Laboratorium Dengan Inverter

Jurnal Teknik Juara Aktif Global Optimis ◽

10.53620/jtg.v1i1.7 ◽

2021 ◽

Vol 1 (1) ◽

pp. 24-29

Author(s):

Najma Safienatin Najah ◽

Arief Muliawan ◽

Febria Anita

Keyword(s):

Wind Turbine ◽

Output Power ◽

Design Research ◽

Horizontal Axis ◽

Horizontal Axis Wind Turbine ◽

Research Results ◽

Turn On ◽

Generator Voltage ◽

Turbine Design ◽

Generator Currents

A horizontal axis wind turbine design research has been carried out using an inverter. This study aims to generate the output power generated by the generator through an inverter. So that the use of an inverter can turn on the 10 watt lamp. From the research results obtained turbine rotation varied between 1357 rpm to 2415 rpm producing a generator voltage of 3.05 volts to 4.61 volts and generator currents 32mA up to 49 mA. The inverter produces a voltage of 16.57 volts up to 20.46 volts and an inverter current of 0.60 amperes up to 0.48 amperes. The greater the rotation of the wind turbine turbine, the greater the generator voltage generated and so is the voltage of the inverter. While the current will increase as the turbine rotation increases and the inverse of the inverter current will decrease as the turbine rotation increases.

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Aerodynamic Design and Performance Prediction of a Micro Horizontal Axis Wind Turbine Blade

International Journal of Engineering Research and ◽

10.17577/ijertv8is090099 ◽

2019 ◽

Vol V8 (09) ◽

Author(s):

M. Shuwa ◽

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Performance Prediction ◽

Wind Turbine Blade ◽

Horizontal Axis ◽

Aerodynamic Design ◽

Horizontal Axis Wind Turbine ◽

And Performance

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Investigation of an Innovative Rotor Modification for a Small-Scale Horizontal Axis Wind Turbine

Energies ◽

10.3390/en13102649 ◽

2020 ◽

Vol 13 (10) ◽

pp. 2649 ◽

Cited By ~ 1

Author(s):

Artur Bugała ◽

Olga Roszyk

Keyword(s):

Wind Speed ◽

Wind Turbine ◽

Cfd Simulation ◽

Turbine Blades ◽

Three Dimensional ◽

Horizontal Axis ◽

Power Coefficient ◽

Small Scale ◽

Horizontal Axis Wind Turbine ◽

Airflow Distribution

This paper presents the results of the computational fluid dynamics (CFD) simulation of the airflow for a 300 W horizontal axis wind turbine, using additional structural elements which modify the original shape of the rotor in the form of multi-shaped bowls which change the airflow distribution. A three-dimensional CAD model of the tested wind turbine was presented, with three variants subjected to simulation: a basic wind turbine without the element that modifies the airflow distribution, a turbine with a plano-convex bowl, and a turbine with a centrally convex bowl, with the hyperbolic disappearance of convexity as the radius of the rotor increases. The momentary value of wind speed, recorded at measuring points located in the plane of wind turbine blades, demonstrated an increase when compared to the base model by 35% for the wind turbine with the plano-convex bowl, for the wind speed of 5 m/s, and 31.3% and 49% for the higher approaching wind speed, for the plano-convex bowl and centrally convex bowl, respectively. The centrally convex bowl seems to be more appropriate for higher approaching wind speeds. An increase in wind turbine efficiency, described by the power coefficient, for solutions with aerodynamic bowls was observed.

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Comparison of horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT)

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.13.21333 ◽

2018 ◽

Vol 7 (4.13) ◽

pp. 74 ◽

Cited By ~ 9

Author(s):

Muhd Khudri Johari ◽

Muhammad Azim A Jalil ◽

Mohammad Faizal Mohd Shariff

Keyword(s):

Wind Turbine ◽

Wind Turbines ◽

Vertical Axis ◽

Green Technology ◽

Horizontal Axis ◽

Vertical Axis Wind Turbine ◽

Horizontal Axis Wind Turbine ◽

Current Output ◽

Voltage Output ◽

And Performance

As the demand for green technology is rising rapidly worldwide, it is important that Malaysian researchers take advantage of Malaysia’s windy climates and areas to initiate more power generation projects using wind. The main objectives of this study are to build a functional wind turbine and to compare the performance of two types of design for wind turbine under different speeds and behaviours of the wind. A three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbine (VAWT) have been designed with CATIA software and constructed using a 3D-printing method. Both wind turbines have undergone series of tests before the voltage and current output from the wind turbines are collected. The result of the test is used to compare the performance of both wind turbines that will imply which design has the best efficiency and performance for Malaysia’s tropical climate. While HAWT can generate higher voltage (up to 8.99 V at one point), it decreases back to 0 V when the wind angle changes. VAWT, however, can generate lower voltage (1.4 V) but changes in the wind angle does not affect its voltage output at all. The analysis has proven that VAWT is significantly more efficient to be built and utilized for Malaysia’s tropical and windy climates. This is also an initiative project to gauge the possibility of building wind turbines, which could be built on the extensive and windy areas surrounding Malaysian airports.

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