Calculate the turbine power with the following data - Blade length, I = 50 m , Wind Speed, v = 10 m/sec , Air density, p = 1.23 kg/m^3 , Power Coefficient, Cp = 0.5. Also, give any three characteristics of wind mills designed to tackle heavy wind load.

A large commercial wind turbine has a blade span of 100 m and tower (4 m diameter uniform) height of 150 m high (hub height above the ground). If the combined turbine-generator efficiency of 40%, wind speed of 15 km/h and the air density 1.2 kg/m3 (disregard frictional effects on the mast) determine the following:a) Electrical power generated by the turbine (in MW).b) Total horizontal force (kN) exerted by the wind on the supporting mast of the turbine and the distance (m) of this resultant force from the ground. Assume uniform tower diameter throughout the height.c) What will be the electrical power generated (in MW) when the wind speed is 30 km/h

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Turbo generator.

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Take the density of air to be 1.25 kg/m³, and disregard fric- 13-42 Commercially available large wind turbines have blade span diameters larger than 100 m and generate over 3 MW of electric power at peak design conditions. Consider a wind turbine with a 60-m blade span subjected to 30-km/h steady winds. If the combined turbine-generator exerted by the wind on the supporting mast of the turbine. power generated by the turbine and (b) the horizontal force efficiency of the wind turbine is 32 percent, determine (a) the tional effects on mast. 30 km/h 60 m FIGURE P13-42

Two sites are being considered for wind power generation. In the first site, the wind blows steadily at 7 m/s for 3000 hours per year, whereas in the second site the wind blows at 10 m/s for 2000 hours per year. Assuming the wind velocity is negligible at other times for simplicity, determine which is a better site for wind power generation. Hint: Note that the mass flow rate of air is proportional to wind velocity.[take the density of air to be ρ = 1.25 kg/m3]

Fluid Mechanics : Energy and Power: An engineer is considering the development of a small wind turbine (D=1.25m) for home applications. The design wind speed is 15 mph(6.706m/s) at 10oC and 0.9 bar (90kPa). The efficiency of the turbine is 20%, that is 20% of the kinetic energy of the wind can be extracted. Estimate the power in watts that can be produced by the turbine. Hints: 1) In the time interval delta t, the amount of mass that flows through the rotor is:    delta m = mdot delta t  2) The kinetic energy in the flow is:    (delta m V2/2)