Abstract
A domestic purpose micro wind turbine realised using bamboo blade is tested for the power generation at an interval of two years and compared the performance. A CFD analysis of turbine with five blade system is carried out for an average wind velocity of 2.5m/s and structural integrity of the bamboo blade unit based on the pressure distribution is assessed. For the input wind velocity, a stream lined out flow of 5.9 m/s is found when wind turbine rotates at 300 rpm and corresponding pressure distribution is found to be maximum at the expected location of blade tip as129 Pa. The static analysis shows a good margin. For 2.5 m/s, a wind turbine generates an average value of 3.8V with 0.25A (based on 15 Ω/10W load). The wind turbine has produced nearly the same power even after a period of two years.
Highlights
A domestic purpose micro wind turbine realised using bamboo blade is tested for the power generation at an interval of two years and compared the performance
The analysis of the two-dimensional subsonic flow over a National Advisory Committee for Aeronautics (NACA) 0012 air-foil at various angles of attack and operating at a Reynolds number of 3×E+06 is made and the CFD simulation results showed a close agreement with the experiments, suggesting a reliable alternative to experimental method in determining drag and lift
Pressure distribution and velocity profile of wind force based on CFD analyses of wind turbine that consists of five bamboo blades that falls in the category of micro wind turbine with rotor diameter of 2m and blade size of 0.6 0.125 m 0.002 m are given in the Figs.4 and 5 for an inlet velocity of 2.5 m/s
Summary
A domestic purpose micro wind turbine realised using bamboo blade is tested for the power generation at an interval of two years and compared the performance. The analysis of the two-dimensional subsonic flow over a NACA 0012 air-foil at various angles of attack and operating at a Reynolds number of 3×E+06 is made and the CFD simulation results showed a close agreement with the experiments, suggesting a reliable alternative to experimental method in determining drag and lift. He explained about the wind tunnel testing method to determine air-foil lift and drag forces where the process is quite laborious and costly more than CFD techniques. For very large bamboo has to be incorporated into composites for wind turbine blade applications because single bamboo stalks are not big enough for a blade
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