How Does a work Horizontal Axis Wind Turbines (HAWT)
Wind turbines extract conduct energy from wind and transform into electricity in this video, we will learn working principle of horizontal axis wind turbine which is the most commonly used one.
When with high energy passes over specially shaped wind turbine blades it produce a lift force try gentle component of lift force will make the blade rotate the slow-speed rotation will be transformed to high speed with help of gear mechanism inside and generator in the cell will transform mechanical energy obtained to electrical energy. Direction of one can change anytime so its own mechanism on m in turbine makes sure that in is always in direction of wind. Visual showing maximum power extraction most often wind speed will have dramatic fluctuation with time.
Power produced by wind turbine is highly sensible to wind speed so unless if you don't have a suitable mechanism power produced will be highly fluctuating. In practice wind turbines starts only when there is a minimum speed to win called cut in speed wind-win speed is between cutting speed and the rated speed they will be much Empowered production after reading speed power production has maintained a constant level achieved by adjusting pitch of the blades with help of a controller.
higher wind speed may be fatal for wind turbines so after a cut out limit power production is turned off in affect power produced by wind turbine will very like the This wind speed such a profile would give much smoother power production. we will see what is the maximum performance a wind turbine can using a simplified one dimensional analysis since the turbine is extracting some energy an outlet when will have lesser kinetic energy compared to in sunlit exit when the velocity will be lower compared to in will follow a trend like this from inlet to exit mass flow rate passing through believe swept area is given as when the velocity of blame times density into area when the velocity through blade can be approximated s average of him leading to exit velocities since velocity at inlet is higher than outlet the same nice will flow through unleavened outlet through a smaller and bigger area fluid passing through swept area will follow if low volume like this power extracted by the wind turbine is same as decrease in Connecticut urging from inlets wildlife so winter buying can extract maximum energy when product of these two terms are maximum power extracted will very likely this with ratio of exit to inlet velocity and we'll have a maximum value n exit velocity is one by a third of unlevel law city power input to wind turbine is inlet kinetic energy of wind passing through same swept area which can be modified in terms of the law city efficiency of winter minus ratio of power extracted to power input so we can show that a wind turbine can convert up to fifty nine point to six percent when kinetic energy to work this is no was billet’s limit this is an idealistic case possible only when wind turbine is rotating it high rpm and having infinite number of blades a real turbine will have much slower performance will learn about factors which affect wind turbine design the next video
