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Consider a 45-m, 750 kW (assume a NEG Micon type) wind turbine (see Table 6.7 of Masters Book) located at a site with Rayleigh winds
Consider a 45-m, 750 kW (assume a NEG Micon type) wind turbine (see Table 6.7 of Masters Book) located at a site with Rayleigh winds averaging 7.5 m/s. The sea level temperature is 15 degree C. Attempt the following: (a) For Rayleigh winds with the above average wind speed, how many hours per year do the winds blow at less than 13 m/s? Also, for how many hours per year are wind speeds above 25 m/s? (b) With Rayleigh winds averaging 7.5 m/s and using the simple capacity factor correlation given in chapter 6 on Masters book, estimate the annual energy delivered. (c) Suppose the total installed cost of the wind turbine is $0.8 million and its annual cost is based on the equivalent of a 20-year, 5% loan to cover the capital costs. In addition, assume an annual operations and maintenance cost equal to 1.25% of the capital cost. What would be the cost of electricity from this turbine (cent/kWh)? (d) If the wind regime is well characterized by the above Rayleigh winds averaging 7.5 m/s, What is the average efficiency of this machine? (e) Estimate the fraction of the annual energy delivered with winds that are above the rated wind speed? Consider a 45-m, 750 kW (assume a NEG Micon type) wind turbine (see Table 6.7 of Masters Book) located at a site with Rayleigh winds averaging 7.5 m/s. The sea level temperature is 15 degree C. Attempt the following: (a) For Rayleigh winds with the above average wind speed, how many hours per year do the winds blow at less than 13 m/s? Also, for how many hours per year are wind speeds above 25 m/s? (b) With Rayleigh winds averaging 7.5 m/s and using the simple capacity factor correlation given in chapter 6 on Masters book, estimate the annual energy delivered. (c) Suppose the total installed cost of the wind turbine is $0.8 million and its annual cost is based on the equivalent of a 20-year, 5% loan to cover the capital costs. In addition, assume an annual operations and maintenance cost equal to 1.25% of the capital cost. What would be the cost of electricity from this turbine (cent/kWh)? (d) If the wind regime is well characterized by the above Rayleigh winds averaging 7.5 m/s, What is the average efficiency of this machine? (e) Estimate the fraction of the annual energy delivered with winds that are above the rated wind speed
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