In a small town, there are 2400 families used electricity for their energy requirement. One family use average electrici

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In A Small Town There Are 2400 Families Used Electricity For Their Energy Requirement One Family Use Average Electrici 1 (113.68 KiB) Viewed 41 times

In a small town, there are 2400 families used electricity for their energy requirement. One family use average electricity consumption of 10kWhr a day. It has been decided to introduce a wind turbine project to cater this demand. If they install wind turbines with capacity of 1 MW with 50% efficiency. (a) How many wind turbines are required to install to cater the full demand. (b) If the hub hight of the wind turbine from its ground level is 100 m and the blade length is 50 m, what is the wind speed at hub height. Page 1 of 4 (c) If they install the same wind turbine at a higher elevation of 100 m above the previous location, what would be the wind speed at new location? (d) What is the power output of the turbine if it is installed at higher elevation? Wind Power (P)=1/2ρAV3η where ρ is the density of the air (1.225 kg/m3),A is the swept area of the wind, and V is the wind speed. η is the efficiency of the wind turbine. The wind velocity variation with hub height is given as below. v2​/v1​=[h2​/h1​]p Where v1​ - velocity of wind in (m/s) at hub height of h1​ in (m) v2​ - velocity of wind in (m/s) at hub height of h2​ in (m) p - wind shear exponent and for urban areas p can be taken as p=0.15