Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A wind turbine is rotating at 15 rpm under steady winds flowing through the turbine at a rate of 43400 kg/s. The tip velocity of the turbine blade is measured to be 250 km/h. Assume 180 kW power is produced by the turbine and answer the questions that follow. Take the density of air to be 1.31 kg/m^3. Determine the average velocity of the air. (You must provide an answer before moving to the next part.) The average velocity of the air is [ ] m/s.
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A wind turbine is rotating at 15 rpm under steady winds flowing through the turbine at a rate of $42,000 \mathrm{~kg} / \mathrm{s}$. The tip velocity of the turbine blade is measured to be $250 \mathrm{~km} / \mathrm{h}$. If $180 \mathrm{~kW}$ power is produced by the turbine, determine $(a)$ the average velocity of the air and $(b)$ the conversion efficiency of the turbine. Take the density of air to be $1.31 \mathrm{~kg} / \mathrm{m}^{3}$
The measurements over an entire week period indicates that a wind turbine with a blade diameter of 50 m and rotating at 40 rpm has produced 15,000 kWh of electricity. If the overall efficiency of the wind turbine is estimated to be 30%. Take the density of air to be 1.2 kg/m3. Calculate: (a) The average wind velocity during this period. (b) The tip speed of the blade, in km/h. (c) The air velocity at the turbine exit.
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