1. A typical wind turbine extracts 40% of the kinetic energy of the wind that blows...
1. A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through the area swept by the blades. For a large turbine 110,000 kg of air moves past the blades at 13 m/s every second.
A. Sketch the turbine and the air passing ‘through’ it.
B. How much power does the turbine extract?
C. If the turbine converts 80% of the power into electric energy, how much electric power is produced?
Homework Answers
Add Answer to:
1. A typical wind turbine extracts 40% of the kinetic energy of
the wind that blows...
A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through the area swept by the blades. F...
A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through the area swept by the blades. For a large turbine, 110,000 kg of air moves past the blades at 15 m/s every second. If the wind turbine extracts 40% of this kinetic energy, and if 80% of this energy is converted to electric energy, what is the power output of the generator?
3. A wind turbine has blades, which sweep out an area of diameter 25 m 25m...
3. A wind turbine has blades, which sweep out an area of diameter 25 m 25m blades Fig. 5.1 (a) The wind is blowing directy towards the wind turbine at a speed of 12 m/s. At this wind speed, 7500 kg of air passes every second through the circular area swept out by the blades. U) Calculate the kinetic energy of the air travelling at 12 m /s, which passes through the circular area in 1 second Kinetic energy. The...
. A typical commercial wind turbine costs approximately $2 million per MW of installed power and...
. 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 (b) A blade of a wind turbine can be considered as a thin rod, of...
2 (b) A blade of a wind turbine can be considered as a thin rod, of mass m, length a and cross- sectional area A. (i) Show that the moment of inertia of the blade about an axis passing through its centre of mass and perpendicular to its length is 1 = izma? [8] (ii) By applying the parallel axis theorem or otherwise, deduce the moment of inertia of the blade about an axis passing through one end of the...
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
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...
wind energy question 9 What is the amount of air mass that passes through a wind...
wind energy question 9
What is the amount of air mass that passes through a wind turbine's swept area per minute if the turbine has 45 m long blades and the air flux is 12 kg/(m´s)? O 76,300 kg/min 0 1,458,000 kg/min O 4,580,400 kg/min O 3,014,400 kg/min
Question 1 Answer saved A wind turbine produces 779.1 kW of power when the wind blows...
Question 1 Answer saved A wind turbine produces 779.1 kW of power when the wind blows with a speed of 8.2 m/s. How much power will the wind turbine produce in 5.4 m/s winds? Give your answer in kW, rounded to 1 decimal place. Marked out of 2.0 P Flag question Answer:
1. Increasing the diameter of turbine blade 3 times power of turbine will 2. Maximum possible...
1. Increasing the diameter of turbine blade 3 times power of turbine will 2. Maximum possible efficiency of a wind turbine i 3. A taller wind turbine gives higher power because at higher altitude A) Increase 2 times 1B) decrease 4 times C) incrense 8 times D) Increase 9 tinves As A)39% B) 49% C)50% D) 90% Ans A) Density of air is higher B) air velocity of higher C) air pressure is higher D) air temperature is higher Anst...
Kindly correctly and show steps. Thank you 2. Wind (ρair = 1.225 kg/m3 ) passes through...
Kindly correctly and show steps. Thank you
2. Wind (ρair = 1.225 kg/m3 ) passes through a
turbine in Figure 2 at a constant temperature, whose blades of
length R1 = 30 m sweep out an area A1 seen in Figure 2.
V. P 1.5MW Figure 2: Wind Turbine. 2. (20 points) Wind (Pair1.225passes through a turbine in Figure 2 at a constant temperature, whose blades of length Ri 30 m sweep out an area A seen in Figure 2...
7.26. The conversion of the kinetic energy of wind to electricity may be an attractive altemative...
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...
3. A wind turbine has blades, which sweep out an area of diameter 25 m 25m blades Fig. 5.1 (a) The wind is blowing directy towards the wind turbine at a speed of 12 m/s. At this wind speed, 7500 kg of air passes every second through the circular area swept out by the blades. U) Calculate the kinetic energy of the air travelling at 12 m /s, which passes through the circular area in 1 second Kinetic energy. The...
. 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 (b) A blade of a wind turbine can be considered as a thin rod, of mass m, length a and cross- sectional area A. (i) Show that the moment of inertia of the blade about an axis passing through its centre of mass and perpendicular to its length is 1 = izma? [8] (ii) By applying the parallel axis theorem or otherwise, deduce the moment of inertia of the blade about an axis passing through one end of the...
wind energy question 9
What is the amount of air mass that passes through a wind turbine's swept area per minute if the turbine has 45 m long blades and the air flux is 12 kg/(m´s)? O 76,300 kg/min 0 1,458,000 kg/min O 4,580,400 kg/min O 3,014,400 kg/min
Question 1 Answer saved A wind turbine produces 779.1 kW of power when the wind blows with a speed of 8.2 m/s. How much power will the wind turbine produce in 5.4 m/s winds? Give your answer in kW, rounded to 1 decimal place. Marked out of 2.0 P Flag question Answer:
1. Increasing the diameter of turbine blade 3 times power of turbine will 2. Maximum possible efficiency of a wind turbine i 3. A taller wind turbine gives higher power because at higher altitude A) Increase 2 times 1B) decrease 4 times C) incrense 8 times D) Increase 9 tinves As A)39% B) 49% C)50% D) 90% Ans A) Density of air is higher B) air velocity of higher C) air pressure is higher D) air temperature is higher Anst...
Kindly correctly and show steps. Thank you
2. Wind (ρair = 1.225 kg/m3 ) passes through a
turbine in Figure 2 at a constant temperature, whose blades of
length R1 = 30 m sweep out an area A1 seen in Figure 2.
V. P 1.5MW Figure 2: Wind Turbine. 2. (20 points) Wind (Pair1.225passes through a turbine in Figure 2 at a constant temperature, whose blades of length Ri 30 m sweep out an area A seen in Figure 2...
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...
Most questions answered within 3 hours.
-
Brown Corporation makes four products in a single facility.
These products have the following unit product...
asked 7 seconds ago -
20% of all customers subscribe to phone service.
70% of all customers subscribe to internet service....
asked 16 minutes ago -
Write a program to solve the Josephus problem, with the following
modification:
Sample Input:
./a.out n...
asked 2 hours ago -
At the start of a CD it is spinning at a rate of 525 rpm
(revolutions...
asked 3 hours ago -
4. Without doing any calculations, predict whether the observed
∆T would increase, decrease or remain the...
asked 4 hours ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 5 hours ago -
Ripples in a pond travel at a velocity of 3 m/s with one peak
passing a...
asked 5 hours ago -
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 5 hours ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 6 hours ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 7 hours ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 7 hours ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 7 hours ago