Enhancing Power Coefficient of a Wind turbine Using Diffuser Augmentation in Combination with Convergence

Abstract

Now a day, horizontal axis wind turbines play key role, in the field of power generation. But, the cost of power generation becomes high, when compared with power generation by other methods. In the present work the emphasis is focused on increasing the conversion efficiency of a wind turbine. The combination of convergent nozzle and diffuser has been fabricated as a part of the work and carried out experiments in the following manner.  By placing a convergent nozzle at the inlet of wind turbine.  By placing diffuser at the outlet of wind turbine.  By using the combination of convergent nozzle and divergent nozzle The power coefficient of the turbine is determined at various angle of attack in the range of 0 0 to 90 0 .