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b) The wind speed follows the probability density function (pdf) shown in Figure Q5b below 15 10 20 V (m/s) Figure Q5b...
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 w...
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...
The average wind speed is 6 m/s at a 10-m-high anemometer. Estimate the average power density...
The average wind speed is 6 m/s at a 10-m-high anemometer. Estimate the average power density in the wind at a height of 80 m. Assume Rayleigh statistics, a standard friction coefficient α = 1/7, and standard air density ρ = 1.225 kg/m3.
Please help ASAP will rate. 3. The wind speed, V, in a wind farm follows a...
Please help ASAP will rate.
3. The wind speed, V, in a wind farm follows a boundary layer distribution of V = 8 15 hodhi (m/s) ---100 -100 where h is the height from ground. The wind turbine efficiency reaches to 90% of the ideal efficiency. If a turbine blade length is 60m, in order to have a power output of 1.5 MW for this turbine, what is the wind velocity and the height that the turbine should be set?...
2. A wind turbine has the maximum power output at the rated speed of 12 m/s...
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...
need help with fluid mechanics problem Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air dens...
need help with fluid mechanics problem
Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air density p gravitational acceleration g, length of the flag I, and the area density" pa (which has dimensions M/L2) of the flag material Using the Buckingham Pi theorem with V, p, and Las your repeating variables, determine the relevant dimensionless groups. Nate. You must...
Question 4 (15 Marks) A. Using the power law, calculate the wind speed at 30 m...
Question 4 (15 Marks) A. Using the power law, calculate the wind speed at 30 m if the wind speed at 50 m is 8.5 m/s. Assume the surface roughness exponent of the site is a 0.1. (3 Marks) B. What is the performance behaviour of Lithium -ion battery interms of discharge current and depth of discharge? (3 Marks) C. Explain the origin and features of Earth's tidal resources? (3 Marks) D. The data for a proposed short rotation coppice...
QUESTION A wind tunnel has the below information, calculate, IF Average density of air, p =...
QUESTION A wind tunnel has the below information, calculate, IF Average density of air, p = 1.225 kg/m3 Inlet wind speed, Vi = 2.5 m/s Inlet tube area, A, = 1.11484m2 Exit tube area, A2 = 0.1297m2 Power coefficient = C, = 0.04 Loss coefficient= K = 0.02 a) The energy at the input (inlet) and output (exit) of the Bernoulli's chamber. b) The energy loss c) If the ratio of the areas A/A, changes from 2 to 3, then...
6. Shown in Figure 6(a) is the magnetization eurve of a DC machine at om 200 rad/s. Find the speed wm when the machine is configured as a shunt connection motor as shown in Figure 6(b) with a torq...
6. Shown in Figure 6(a) is the magnetization eurve of a DC machine at om 200 rad/s. Find the speed wm when the machine is configured as a shunt connection motor as shown in Figure 6(b) with a torque Tn 100 Nm added, and calculate the power developed by the motor. 15 points) Ea(v) 120 100-- ahn = 200 rad/s =0.2 Ω 8o - 100 n L.a Vin 100 v 60 40 20 Figure 6
6. Shown in Figure 6(a)...
show steps please A2. A simplified car model is shown in Figure A3. It travels horizontally at a constant speed of v 20...
show steps please
A2. A simplified car model is shown in Figure A3. It travels horizontally at a constant speed of v 20 miles perhour on a bumpy road (1 mile is approximately 1610 meters). The road surface is assumed to be rigid and has a sinusoidal profile. Both masses vibrate only in the vertical direction. m 900kg, m 60kg,k 1,000,000N/m m1 0.5 m 4k 0.1 m Figure A2. [15] [10] (1) Derive the equation of motion for the vertical...
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...
Please help ASAP will rate.
3. The wind speed, V, in a wind farm follows a boundary layer distribution of V = 8 15 hodhi (m/s) ---100 -100 where h is the height from ground. The wind turbine efficiency reaches to 90% of the ideal efficiency. If a turbine blade length is 60m, in order to have a power output of 1.5 MW for this turbine, what is the wind velocity and the height that the turbine should be set?...
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...
need help with fluid mechanics problem
Name: 4. (15 pts) Wind blowing past a flag cuses it to"ap in the breeze. The flapping frequency is assumed to be a function of the wind speed V, air density p gravitational acceleration g, length of the flag I, and the area density" pa (which has dimensions M/L2) of the flag material Using the Buckingham Pi theorem with V, p, and Las your repeating variables, determine the relevant dimensionless groups. Nate. You must...
Question 4 (15 Marks) A. Using the power law, calculate the wind speed at 30 m if the wind speed at 50 m is 8.5 m/s. Assume the surface roughness exponent of the site is a 0.1. (3 Marks) B. What is the performance behaviour of Lithium -ion battery interms of discharge current and depth of discharge? (3 Marks) C. Explain the origin and features of Earth's tidal resources? (3 Marks) D. The data for a proposed short rotation coppice...
QUESTION A wind tunnel has the below information, calculate, IF Average density of air, p = 1.225 kg/m3 Inlet wind speed, Vi = 2.5 m/s Inlet tube area, A, = 1.11484m2 Exit tube area, A2 = 0.1297m2 Power coefficient = C, = 0.04 Loss coefficient= K = 0.02 a) The energy at the input (inlet) and output (exit) of the Bernoulli's chamber. b) The energy loss c) If the ratio of the areas A/A, changes from 2 to 3, then...
6. Shown in Figure 6(a) is the magnetization eurve of a DC machine at om 200 rad/s. Find the speed wm when the machine is configured as a shunt connection motor as shown in Figure 6(b) with a torque Tn 100 Nm added, and calculate the power developed by the motor. 15 points) Ea(v) 120 100-- ahn = 200 rad/s =0.2 Ω 8o - 100 n L.a Vin 100 v 60 40 20 Figure 6
6. Shown in Figure 6(a)...
show steps please
A2. A simplified car model is shown in Figure A3. It travels horizontally at a constant speed of v 20 miles perhour on a bumpy road (1 mile is approximately 1610 meters). The road surface is assumed to be rigid and has a sinusoidal profile. Both masses vibrate only in the vertical direction. m 900kg, m 60kg,k 1,000,000N/m m1 0.5 m 4k 0.1 m Figure A2. [15] [10] (1) Derive the equation of motion for the vertical...
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