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Wind Power

Wind power is derived from the conversion of wind energy to become a useful form of energy to propel ships, make electricity or pump water. Wind is a renewable source of energy that is widely available and produces no harmful emission during operation.

2,489 Questions

What energy does a wind-up clock use?

A wind up clock contains potential energy stored in a spring.

That energy is used to move the hands of the clock and otherwise power its operation which might include making an alarm ring. The energy in the spring primarily is used to overcome friction (producing heat) in the internal mechanism, but technically a small amount of kinetic energy is contained in the moving hands and a small amount of energy is converted to sound waves if an alarm sound is created.

To get energy into the spring, work was done on it. (Work is force times distance.) Force winds the alarm and that force is applied for a distance and in the direction of motion, even if that direction changes and it ends up being circular as in twisting a key to wind a spring. Apart from frictional forces opposing the winding, the work goes into the spring which gains potential energy. (Friction in the winding process produces some heat, so a careful accounting would put work done equals frictional heat energy plus spring potential energy. As stated above, work done equals change in the energy of the system.)

How does wind energy give energy?

Wind energy is generated by using wind turbines to capture the kinetic energy of the wind and convert it into mechanical power. The spinning blades of the turbine drive a generator, which produces electricity that can be used to power homes and businesses.

How does a generator turn energy in to power?

The electric generator converts mechanical rotation (hence, the term mechanical energy) into electrical energy (electricity) with the help of magnetism in the generator (magnetic forces). Electric power is the term use in expressing the rate of energy per time (hence kilowatt = kilojoule per second).

In a complex electric power system, this electrical energy is converted back into mechanical energy (such as elevator in a building, refrigerator at home) and other forms of energy that are being use by mankind in its quest for development

What is strong wind called?

Strong wind is commonly referred to as a "gale" or "storm." It describes fast-moving air currents that can cause significant disruption and damage.

Why does a wind generator not produce any air pollution?

A wind generator does not produce air pollution because it generates electricity by harnessing the wind's kinetic energy, without burning fossil fuels or emitting harmful gases like carbon dioxide or sulfur dioxide. This clean and renewable energy source helps reduce our reliance on polluting forms of power generation.

Why are wind turbines important?

Wind turbines are important because they generate clean, renewable energy without producing greenhouse gas emissions. They help reduce our reliance on fossil fuels and combat climate change. Wind energy is also abundant and provides energy security.

Is wind power a natural resource?

Yes, wind power is considered a natural resource because it is harnessed from the movement of air around the Earth, which is a natural occurrence. Wind power is a renewable and clean energy source that can be converted into electricity through the use of wind turbines.

How much power is generated by a wind turbine?

The amount of power generated by a wind turbine depends on its size and the wind conditions at the location. A typical onshore wind turbine with a capacity of 2-3 megawatts can generate enough electricity to power around 1,000-1,500 average homes annually. Offshore wind turbines are larger and can generate even more power.

How many blades on a wind generator produce the fastest speed?

Wind generators with fewer blades typically produce faster speeds as they have less drag and are more efficient at capturing wind energy. However, the exact number of blades that produce the fastest speed can vary depending on the specific design and conditions of the wind turbine. Generally, turbines with either two or three blades are commonly used for their balance of speed and efficiency.

How do you find natural frequency of wind turbine tower?

Solve by treating tower as a cantilever beam and lumping some of the tower mass at the top. First find the deflection of the tower, from this find the stiffness. The lowest natural frequency is sqrt(k/m), where m is the mass at the top of the tower plus the 0.23mass of the tower that can be lumped at the end.

Is wind power a type of solar energy?

Wind power is not a type of solar energy. Wind power is generated by harnessing the kinetic energy of moving air, while solar energy is derived from capturing sunlight and converting it into electricity. Both are forms of renewable energy, but they are distinct sources with different mechanisms of generation.

What are the long term effects for using wind energy?

Long-term effects of using wind energy include reduced greenhouse gas emissions, increased energy security, and job creation in the renewable energy sector. Additionally, wind energy helps diversify energy sources and contributes to a more sustainable future.

Who first discovered wind energy?

Wind energy has been used by humans for centuries, dating back to ancient civilizations who used windmills to grind grain and pump water. The earliest recorded use of wind energy for power dates back to the 1st century AD in Persia and China. However, modern wind turbines for generating electricity were developed in the late 19th and early 20th centuries.

Should you think more seriously about using sunlight and wind to produce power discuss the advantages?

As the world continues to need more and more power, many countries are looking for alternative sources of power. Solar and wind energy are attractive sources of power because they would be cheap, and would not be harmful to the environment.

What are the advantages of savonius wind turbine?

The Savonius turbine is of simple geometry and its construction is cheap. It starts rotating a llower wind speeds as compared to its counterpart wind turbines, having a high starting torque. It produces low noise and can make use of the wind flowing in any horizontal direction to its rotation. However, in spite of these advantages, this wind turbine faces one main disadvantage of having low efficiency.

Does wind energy have a bad side to it?

You have to build a large number of turbines to get a decent amount of energy, and it takes up land that could be used for agriculture (although for livestock this isn't a problem). Some also complain that they are an eyesore, but anyone living or working that close to a wind turbine field probably has a choice.

Low frequency noise and light flickering through the blades can be a problem to near neighbours. They should be compensated if they are to become more widespread and improve their press reports.

How many watts of wind power does it take to turn a large wind turbine?

Wind power isn't measured in watts. It takes a certain amount of wind to spin the blades. They can turn the angle of the wind turbine blades to help catch the wind. I beileve the wind has to be at least 30km an hour but i could be wrong. There are lots of places to look that up on the internet. Wikipedia has a fairly good article on wind power. If the wind is going too fast, the often shut down the turbines because they are built to withstand a certain pressure. If the wind is too high (which sometimes happens in Southern Alberta, Canada), they risk destroying the turbines. Watts are a measure of electrical power, not wind power.

What is a wind pump?

A windmill (wind pump) is a structure or machine that converts wind into usable energy through the rotation of a wheel made up of adjustable blades. (How Products are Made) For the source and more detailed information concerning your request, click on the related links section (Answers.com) indicated at the bottom of this answer box.

How does wind converts into electrcity?

Wind is used to turn the blades of a turbine, which spins a generator to produce electricity. As the blades turn, the generator converts the mechanical energy from the wind into electrical energy through electromagnetic induction. This electricity is then sent through transmission lines to power homes and businesses.

Does the fan convert electricity into wind energy?

No, a fan does not convert electricity into wind energy. The electricity powers the motor in the fan, which then rotates the blades to create airflow or wind. The wind energy is not converted into electricity.

Which way does wind blow the most?

Winds generally blow from areas of high pressure to areas of low pressure. However, local factors such as topography, temperature gradients, and proximity to large bodies of water can influence wind direction as well.

What are three facts about wind?

  1. Wind is the movement of air from high pressure areas to low pressure areas.
  2. Winds are caused by the uneven heating of Earth's surface by the sun.
  3. Wind can be harnessed as a source of renewable energy through wind turbines.

How is coal used to generate electricty?

-- coal burns in oxygen

-- burning releases heat

-- heat is used to boil water

-- steam from boiling water is guided through the fan of a turbine

-- pressure of the steam through the fan turns the turbine

-- turbine turns an electric generator

-- if you're lucky, maybe 35% of the energy in the coal comes out as usable electrical energy.

The rest makes all the equipment hot, and eventually seeps off into the atmosphere.

What form of energy does wind possess?

Wind possesses kinetic energy, which is the energy of motion. As wind blows, it carries kinetic energy that can be harnessed to generate electricity through wind turbines.

Where in the country is the least amount of wind?

The least amount of wind in the country is typically found in areas that are shielded by geographical features such as mountains or forests, or regions that are located far inland and away from coastlines where sea breezes are common. Areas with consistent high-pressure systems can also experience lower wind speeds. Some examples include parts of the Great Plains in the United States or inland valleys in regions like the Midwest or the central United Kingdom.