Where Does Wind With Miller Originate

Where does the wind with Miller website originate from?


Produced by Wind Denmark in 2001 with support from the Danish Ministry of Environment and the Ministry of Education it also contains a number of educational practical activities and a teacher’s guide. Attn.: Wind with Miller is no longer updated and is best used in an Internet Explorer browser.

Where does the wind source come from?

Wind is generated from the heat of the sun therefore it is not ‘used up’ after it has blown past a turbine it continues to blow around the world. It is renewable power because it can be used again and again. This is one of the true advantages of wind energy.

What turns the nacelle at the wind?

How does a wind turbine generate electricity? What are the six parts that make up the tower? Briefly describe the function of each part. How tall is a wind turbine tower?

What are the 2 ways that a generator can be cooled?

The majority of generators are air-cooled or liquid-cooled. The cooling method is an essential design element of a generator and is often determined by the size and type of generator. Air cooling systems are usually implemented for smaller generators whereas larger generators call for liquid-cooled systems.

What is the name of the force pulling the plane up?

Weight is the force caused by gravity. Lift is the force that holds an airplane in the air. The wings create most of the lift used by airplanes.

What is the rotor firmly secured with?

It is important that the rotor is firmly secured by a lot of bolts. The gearbox is placed at the other end of the main shaft.

Which country created windmills?

Which country created wind mills? Explanation: The earliest known wind mills were in Persia (Iran). These early wind mills looked like large paddle wheels. Centuries later the people of Holland improved the basic design of wind mill.

Which country is known as country of winds?


Denmark is called ‘Country of Winds’ as it has the highest proportion of wind power in the world. It has the highest proportion of wind power in the world. Wind dominated with 47% of the green energy coming from wind turbines. Denmark fulfill 50% of its power requirements from renewable energy.

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What are the three sources of wind?

Wind energy is an indirect form of solar energy created by a combination of factors including the uneven heating of Earth’s atmosphere by solar radiation variations in topography and the rotation of Earth.

What is the pole of a windmill called?

Nacelle. The nacelle sits atop the tower and contains the gearbox low- and high-speed shafts generator and brake. Some nacelles are larger than a house and for a 1.5 MW geared turbine can weigh more than 4.5 tons.

How tall is a wind turbine tower?

The average height for the tower of a wind turbine is between 60 and 120 meters. In the US the typical 1.5 MW turbine has a tower height of about 80 meters. The Haliade-X by GE the world’s largest wind turbine to date has a tower height of 138 meters. Why Build Taller Turbines?

What is the angle by which the rotor blades are twisted?

Explanation: The rotor blades are twisted by an angle between 10-20 degrees from root to tip.

Why are generators cooled with hydrogen?

Hydrogen is used to cool the windings of large power plant generators because of hydrogen’s high heat capacity and low density.

At what speed is a wind turbine stopped so that damage does not occur?

When the anemometer registers wind speeds higher than 55 mph (cut-out speed varies by turbine) it triggers the wind turbine to automatically shut off.

Why is there only one wire on a dynamo lamp on a wind turbine?

The Circuit of the Dynamo Lamp. The electricity is produced in the dynamo and sent through the wire to the lamp. Maybe you are wondering why there is only one wire when it always takes two to make a circuit. Well the frame of the bicycle replaces the other wire.

What do elevators on an aircraft control?

The elevator is used to control the position of the nose of the aircraft and the angle of attack of the wing. Changing the inclination of the wing to the local flight path changes the amount of lift which the wing generates. This in turn causes the aircraft to climb or dive.

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What makes the plane a real plane move forwards?

A plane’s engines are designed to move it forward at high speed. … The force of the hot exhaust gas shooting backward from the jet engine pushes the plane forward. That creates a moving current of air over the wings. The wings force the air downward and that pushes the plane upward.

Is lift equal to gravity?

The opposing forces balance each other lift equals gravity and thrust equals drag. Any inequality between thrust and drag while maintaining straight and level flight will result in acceleration and deceleration until the two forces become balanced.

How long can a wind turbine generate electricity?

Wind turbines can carry on generating electricity for 20-25 years. Over their lifetime they will be running continuously for as much as 120 000 hours. This compares with the design lifetime of a car engine which is 4 000 to 6 000 hours.

What are the six parts that make up a wind tower?

Here’s an illustration and simple breakdown of all the features that come together to create a wind turbine.
  • Foundation. The foundation for wind turbines is constructed from concrete reinforced with steel. …
  • Tower. …
  • Blades. …
  • Hub. …
  • Rotor. …
  • Nacelles. …
  • Main Shafts and Gearboxes. …
  • Generators.

When the braking is used in wind turbine?

Mechanical wind turbine brakes have two main uses. They are applied as a backup method of holding the turbine in place for maintenance or repairs in the case of a failure of the primary rotor lock system or in the case of emergency situations such as extreme gusts of the wind or too much speed.

What country is the world leader in wind energy?


Number of countries with wind capacities in the gigawatt-scale
# Country or territory 2017
1 China 188 232
European Union 169 319
2 United States 89 077
3 Germany 56 132

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What country has the most wind farms?

Top 10 countries in wind energy capacity
  • China. China has a installed wind farm capacity of 221 GW and is the leader in wind energy with over a third of the world’s capacity. …
  • United States. The US comes second with 96.4 GW of installed capacity. …
  • Germany. …
  • India. …
  • Spain. …
  • United Kingdom. …
  • France. …
  • Brazil.

What state has the most wind power?


Wind Energy Facilities Installed Capacity Ranked by State/Territory
Rank State Installed Capacity (Megawatts)
1 Texas 33 133
2 Iowa 11 660
3 Oklahoma 9 048
4 Kansas 7 016

Which is the first country to harness wind energy?

The answer is Ancient Greece.

What are high speed winds called?

Explanation: High speed winds are called cyclones or gusts.

Who invented wind energy?

Fausto Veranzio

Why are wind turbines bad?

As with all energy supply options wind energy can have adverse environmental impacts including the potential to reduce fragment or degrade habitat for wildlife fish and plants. Furthermore spinning turbine blades can pose a threat to flying wildlife like birds and bats.

What causes the turbines to spin?

A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades which work like an airplane wing or helicopter rotor blade. … The force of the lift is stronger than the drag and this causes the rotor to spin.

Do wind turbines rotate?

Wind turbines can rotate about either a horizontal or a vertical axis the former being both older and more common. Horizontal-axis wind turbines (HAWT) have the main rotor shaft and wind generator electrical generator at the top of a tower and must be pointed into the wind.

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