Question

A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through...

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?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through...
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, 120,000 kg of air moves past the blades at 16m/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?
The opposite of a wind turbine is an electric fan: The electric energy that powers the...
The opposite of a wind turbine is an electric fan: The electric energy that powers the fan is converted to the kinetic energy of moving air. A fan is putting 1.0 J of kinetic energy into the air every second. Then the fan speed is increased by a factor of 2. Air moves through the fan faster, so the fan moves twice as much air at twice the speed. How much kinetic energy goes into the air every second? Note:...
The opposite of a wind turbine is an electric fan: The electric energy that powers the...
The opposite of a wind turbine is an electric fan: The electric energy that powers the fan is converted to the kinetic energy of moving air. A fan is putting 1.8 J of kinetic energy into the air every second. Then the fan speed is increased by a factor of 2. Air moves through the fan faster, so the fan moves twice as much air at twice the speed. How much kinetic energy goes into the air every second? Express...
The opposite of a wind turbine is an electric fan: The electric energy that powers the...
The opposite of a wind turbine is an electric fan: The electric energy that powers the fan is converted to the kinetic energy of moving air. A fan is putting 1.8 J of kinetic energy into the air every second. Then the fan speed is increased by a factor of 2. Air moves through the fan faster, so the fan moves twice as much air at twice the speed. How much kinetic energy goes into the air every second? THE...
An industrial wind turbine has blades that are 35 m long. On a 20?C day, wind...
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) Will the turbine’s wake have a smaller, larger, or the same cross-sectional area compared to the area the blades sweep out. Why? Calculate this area. Hint: At velocities much lower than the speed of sound, with small pressure...
A fan is putting 1.0 J of kinetic energy into the air every second. Then the...
A fan is putting 1.0 J of kinetic energy into the air every second. Then the fan speed is increased by a factor of 2. Air moves through the fan faster, so the fan moves twice as much air at twice the speed. How much kinetic energy goes into the air every second?
Heat is the Total internal energy of an object Average kinetic energy of molecules Measure of...
Heat is the Total internal energy of an object Average kinetic energy of molecules Measure of potential energy of molecules Same thing as very high temperature The specific heat of copper is 0.093 cal/g⁰C, and the specific heat of aluminum is 0.22  cal/g⁰C. The same amount of energy applied to equal masses, say, 50 g of copper and aluminum, will result in A higher temperature for copper A higher temperature for aluminum The same temperature for each metal Unknown results The...
1) 20 kg/min water at 20º C is mixed adiabatically with 40 kg/min water at 80...
1) 20 kg/min water at 20º C is mixed adiabatically with 40 kg/min water at 80 ºC. What is the outlet water temperature? Select one: a. 80 °C b. 60 °C c. 50 °C d. 70 °C 2) Steam at 0.8 MPa and 500 ºC is throttled over a well insulated valve to 0.6 MPa, what is the outlet temperature Select one: a. 450 ºC b. 500 ºC c. DOF>0 d. 400 ºC 3) Humid air at 70 C and...
Exploring Innovation in Action Power to the People – Lifeline Energy Trevor Baylis was quite a...
Exploring Innovation in Action Power to the People – Lifeline Energy Trevor Baylis was quite a swimmer in his youth, representing Britain at the age of 15. So it wasn’t entirely surprising that he ended up working for a swimming pool firm in Surrey before setting up his own company. He continued his swimming passion – working as a part-time TV stuntman doing underwater feats – but also followed an interest in inventing things. One of the projects he began...
Muffler Magic* Muffler Magic is a fast-growing chain of 25 automobile service centers in Nevada. Originally...
Muffler Magic* Muffler Magic is a fast-growing chain of 25 automobile service centers in Nevada. Originally started 20 years ago as a muffler repair shop by Ronald Brown, the chain expanded rapidly to new locations, and as it did so Muffler Magic also expanded the services it provided, from muffler replacement to oil changes, brake jobs, and engine repair. Today, one can bring an automobile to a Muffler Magic shop for basically any type of service, from tires to mufflers...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT