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, 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?

Homework Answers

Answer #1

Here,

The mass is,

m= 120,000 kg

Then,

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

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 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?
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...
A wind turbine that is 80 feet in diameter has a steady wind of 30 mph...
A wind turbine that is 80 feet in diameter has a steady wind of 30 mph (miles per hour) blowing into it. The efficiency of the turbine in converting wind energy to electricity is 40%. If the mass density of air is 0.075 lbm/ft3 answer the following questions. You did watch the video lectures ...right? What is the actual power output of the turbine in horsepower to three significant digits ______________? Do not type in units, do not forget efficiency....
Part II HAWT DESIGN QUESTIONS Hint: questions 1-3 are answered in terms of the definition of...
Part II HAWT DESIGN QUESTIONS Hint: questions 1-3 are answered in terms of the definition of Cp. 1. Doubling power output requires what % increase in diameter? _______ Why? ___________________ 2. Doubling wind speed provides what % increase in power? _______ Why? __________________________ 3. Reducing air density by 10% changes power by what percentage? Increase or decrease in power? ________________________________________________________________________________ 4. Doubling wind speed requires what change in rpm (to provide same efficiency)? (Hint: Dynamic similarity requires same tip speed...
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...
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...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...