A wind-turbine has a propeller radius of 30 m, rated speed of 10 m/s and 30% efficiency at the rated speed.
a) Calculate the rated power for this wind turbine. (air density is 1.2 kg/m).
b) If this turbine produces 2 GW-h energy in one year, what is its capacity factor?
A wind-turbine has a propeller radius of 30 m, rated speed of 10 m/s and 30% efficiency at the rated speed.
2. A wind turbine has the maximum power output at the rated speed of 12 m/s and a rotor diameter of 82 meters. The cut-in and cut-out speeds for this type of wind turbine are 4 m/s and 23 m/s, respectively. The table below shows the annual wind data near a potential site for setting up a wind farm using this type of wind turbine and the power coefficient of the wind turbine at the specific wind speed. The air...
Find the power production (in MW) of a 25 m radius wind turbine if the average wind speed is 12 m/s and the efficiency of this turbine in converting kinetic energy of air to mechanical work is 10%? The density of air is 1.20 kg/m3 .
Question 30 6 points Save Answer (LO4) A wind turbine with a 40-m-diameter rotor is rotating at 21 rpm under steady winds at an average velocity of 14.7 m/s. The electrical power output from the generator is 350 kW. The efficiency of the gearbox is 93% and generator efficiency is 86%. Take the density of air to be 1.013 kg/m. Answer the following questions; use the white paper to work-out your calculations and then choose the correct answer from the...
1. Consider a wind turbine of diameter 52 m, rated capacity 850 kW, installed at a site where the average wind power density = 700 W/ m2. The total energy output over a year = 3240 MWh. What is the capacity factor?
A 20-m/sec wind speed enters a two-bladed, high speed wind turbine .What should be the rotor diameter of this turbine to attain power of 100 kW at power coefficient of 0.3? Also calculate the rotor speed and torque produced. Assume the density of Air 1.2 kg/m.
1. Consider a wind turbine of diameter 52 m, rated capacity 850 kW, installed at a site where the average wind power density = 700 W/m2. The total energy output over a year = 3240 MWh. What is the specific rated capacity of the wind turbine (in the units commonly specified).
A very large wind turbine is used to extract power from the wind. The turbine has a diameter of 120 meters. What is the maximum power this turbine can extract from the wind. Assume a wind speed of 10 m/s and the density of air is 1.2 kg/m3. 3.40 MW 6.80 MW 4.02 MW 7.52 MW
a probability density function (pdf) of wind speed, y, pl)that is flat from 0 mis to a cutof velocity ve m/s, Pr(v)-( and turbine power, P, as a function of the random variable v of the form 2 where n is the turbine efficiency and v, is the rated velocity such that 2 For the following, assume vc-20 m/s, η-04, ρ 122 kg/m3, A-4x104 m? and v-20 m/s-ve- (a) Calculate the mean value of the random variable defined by this...
An industrial wind turbine has blades that are 35 m long. On a 20?C day, wind at atmospheric pressure blows with a velocity of 12 m/s , and wind in the turbine wake only has a velocity of 11 m/s .(a) If we assume that all of the kinetic energy lost by the wind is converted to electrical energy by the turbine, then what is the power generated by this turbine? (density is 1.205 kg/m^3)(b) This turbine is rated as...
1. Consider a wind turbine of diameter 52 m, rated capacity 850 kW, installed at a site where the average wind power density = 700 W/m2. The total energy output over a year = 3240 MWh. What is the average power output ?