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This research presents the design, fabrication and performance analysis of loopwing horizontal axis wind turbine. Among the many types of wind turbine, most of them failed in efficiency because of the higher rotating speed required in other conventional horizontal axis wind turbine. Another vertical axis wind turbine suffers unbalance torque between the right and left side which causes vibration. Loopwing horizontal axis wind turbine is operated at low rotating speed without reducing energy efficiency. There is no vortex discharge and noise because loopwing horizontal axis wind turbine has strip ribbons as its blade tip portion ends in a loop shape. Loopwing horizontal axis wind turbine blade is designed by the using of basic design formula such as angular momentum theory, blade element theory. The NASA SC(2)-0402 is chosen as the loopwing horizontal axis wind turbine blade profile by comparing it with a similar airfoil shape from the results of Profili Software. The model of loopwing horizontal axis wind turbine is drawn by using Solidworks 2018. Performance testing is carried out on the roof of Main-Building at Mandalay Technological University. The wind turbine hub is placed 14.6 m above the ground. The material of loop type blade wind turbine is stainless steel. The performance analysis of loopwing horizontal axis wind turbine is emphasized in this research. This loop type blade wind turbine can be started wind speed at 1.5m/s and cut-out wind speed at 12m/s. Electrical power output can be produced by about 100 W by the following horizontal axis wind generator at rated wind speed 6m/s. Rotor diameter is 1.5m and the no. of the blade is three and the tip speed ratio is 5.

The main goal of wind turbine development is to increase the power output of the turbine. One of the methods for promising of wind power output is to increase the effective wind velocity by using an augmentation device around the rotor. This paper is an attempt to observe the effect of flat plate acceleration device on the performance of the wind turbine. A numerical simulation was conducted to investigate the performance of straight bladed vertical axis wind turbine applying simple flat plate wind acceleration device. In this study, straight bladed vertical axis wind turbines (SVAWT) of NACA0016 with wind cord length 113 mm was used to investigate its performance by adding two flat plates on both sides of the rotor at different separation gaps. The power output of the turbine at various wind speed of 2.6-7.5 m/s at different separation gaps and different clearance between turbine and accelerator were investigated. Wind turbine power output has significantly increased by presenting two flat plates around the rotor. Maximum peak power has attained at certain separation gap from the view of the upwind side and it was 1.5 times of the bare turbine output. The flow phenomenon behind the blade was also investigated. The flat plate guides the mainstream to be a narrow passage between the two flat plates, creating a vortex behind the flat plate which phenomenon cannot occur in the bare turbine case. Narrow passage mainstream between flat plates gives more accelerated effect of the blade, resulting speed increasing of upstream side blade to make lift. There are sensitive changes of power output when the positions of both plates are changed to different separation gaps and different clearances from their reference places. All the results demonstrate that the flat plate technique can give high increased power to the straight bladed vertical axis wind turbine.