An Experimental Analysis and Comparison of the Mechanical Efficiency of Two Different Design Three Blade Wind Turbine NACA 4415 and NACA 5520 with Varying Camber Area, Camber Position and Blade Thickness
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 5
Abstract
In the present era, the world is struggling for energy so lots of researches are being conducted to meet the demand. The wind energy is a renewable source of energy and it is clean and pollution free too. So it is necessary to optimize the wind power generation . In this research a small wind turbine with two different designs aerofoil section NACA 4415 and NACA 5520 was developed for experimenting the performance of a Horizontal axis wind turbine with varying wind speed. The blade thickness was taken 15% and 20% of chord length. Camber area is 4% and 5% of the whole area and camber position is at the 40% and 50% of the chord length. And tested for its mechanical efficiency. An improved value of efficiency was noticed for The blades of aerofoil section NACA 5520 is 39% as compared to NACA 4415 is 37% were twisted from root to tip about 12 to 13 degree and RPM was noticed. In the present research we obtained an average rotor efficiency of 39% .Also it was noticed that the mechanical efficiency increases with increase in wind speed.
Authors and Affiliations
Pradeep Sikarwar, Amit Shrivastava, Amit Shrivastava
Keywords
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