Question

What is wind energy and give some examples also ?​

Answer 1

Answer:

what is wind energy?

Wind energy is a kind of solar energy. Wind energy describes the process by which wind is used to produce electricity. The wind turbines convert the kinetic energy present in the wind to mechanical power.Wind energy is a renewable source of energy that determines the total power in the wind. The wind turbines which convert kinetic energy to mechanical power, wherein the mechanical power is converted into electricity which acts as a useful source.

Examples

Example 1

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:Given:

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:Given:Wind speed v = 20 m/s,

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:Given:Wind speed v = 20 m/s,Blade length l = 50 m,

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:Given:Wind speed v = 20 m/s,Blade length l = 50 m,Air density ρ = 1.23 kg/m.

Example 1Determine the power in the wind if the wind speed is 20 m/s and blade length is 50 m.Solution:Given:Wind speed v = 20 m/s,Blade length l = 50 m,Air density ρ = 1.23 kg/m.The area is given by, A=π r2

A = π × 2500

A = π × 2500  = 7850 m

A = π × 2500  = 7850 mThe wind power formula is given as,

P=1/2PAV3

p=1/2(1.23)(7850)20 3

P = 38622 W

Example 2

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:Given:

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:Given:Wind speed v =10 m/s,

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:Given:Wind speed v =10 m/s,Blade length l = 20 m,

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:Given:Wind speed v =10 m/s,Blade length l = 20 m,air density ρ = 1.23 kg/m3,

Example 2A wind turbine travels with the speed is 10 m/s and has a blade length of 20 m. Determine wind power.Solution:Given:Wind speed v =10 m/s,Blade length l = 20 m,air density ρ = 1.23 kg/m3,area ,A=πr2

       = π × 400

       = π × 400      = 1256 m2

The wind power formula is given as,

P=1/2PAV3

= 0.5 × 1.23 × 1256 × 1000

= 0.5 × 1.23 × 1256 × 1000 P = 772440 W.

Answer 2

Answer:

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Explanation:

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