MIET 2480-Renewable Energy Systems-15 Jun 2019 Quiz 2: Wind Power Adeol Summanleknl Name: Student ID: 1....
The available power in a stream of wind of the same cross-sectional area as the wind turbine can easily be shown to be Available power in watts P pU3 Td where U is the wind speed in m/s p is the density of air in kg/m d is the rotor diameter in m - a. If the temperature is 0°C, and the air density p at 0°C is 1.2754 kg/m', the available power is 225 kW, and the wind speed...
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 ?
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).
1 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 proportion of wind energy captured? a
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 typical commercial wind turbine costs approximately $2 million per MW of installed power and requires 5.76 TJ per million dollars of energy to manufacture the wind turbine. (a) Calculate the amount of energy that is consumed (i.e. energy invested) in the manufacture ofa 1.5 MW wind turbine, assuming that turbine manufacture requires 5.76 TJ per million dollars spent. (TJ Tera-joules 1012 joules) (b) If the wind turbine has blades that are 40 meters (radius) long and the average...
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...
7.26. The conversion of the kinetic energy of wind to electricity may be an attractive altemative to the use of fossil fuels. Typically, wind causes the rotor of a turbine to turn, and a generator converts the rotational kinetic energy ofthe rotor into electricity. Power generated by a wind turbine (Ws) can be estimated from the density of the air (p), wind speed (u), and turbine rotor diameter (D) using the following formula лD? 1 W. ти* х п, where...
1. Compare the power output of a wind turbine when the temperature is 45 °C and when the temperature is 0 °C (using the same wind speed distribution). At the higher temperature, the power output will be:
PHY 206: Renewable Energy Resources Home Work 1 Due: Friday, 22nd April, 2020 1. Explain the difference between primary and secondary energy sources. Give three examples of secondary energy sources. 2. Show that the available power from the water in the plant can be written as P = pgQH where p is the density of water [kg/m?], g is the gravitational constant (m/s?], Q is the flow rate of water [m/s] and H corresponds to the head height [m]. 3....