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Wind starts due to differences in air pressure in the Earth's atmosphere, primarily caused by uneven heating from the sun. When the sun heats the Earth's surface, warmer air rises, creating areas of low pressure. Cooler air then moves in to fill this void, resulting in wind. This movement can be influenced by factors such as terrain, temperature variations, and the Earth's rotation.
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What is the minimum wind speed to turn the blades of a wind turbine?
Wind turbines are built to wind range specifications, so the answer varies. GE and Gamesa, to name two manufacturers, have introduced wind turbines that can start in lower winds, as low as 5 miles per hour. These wind turbines have lower top end ranges and generate less energy than wind turbines designed for higher wind ranges. Wind turbines typically cut in at 7-9 miles per hour. Some wind turbines are designed for very low wind conditions and will start in winds of 2-4 miles per hour. These are only useful in the very lowest of winds. Many industrial-scale wind turbines require power from the grid to start turning, typically around their face-plate generation capacity for a few minutes to overcome inertia of the blades. Compared to hours, days and often weeks of generation, this is a trivial energy requirement. It's further offset by wind farms starting up in increments. Wind farms feed energy into the very local grid. As the first wind turbine starts generating power, that power is available to other wind turbines. A wind farm will have the later starting wind turbines starting with the energy from the earlier wind turbines. Other answer: The latest models supposedly can start at about 5 miles per hour wind speed, but most start at around 8 miles per hour, though it is debatable whether a really useful amount of energy can be generated at these low speeds. The turbines also need a very large electrical 'kick-start' from the National Grid to get them into action, and a large amount of power is also required to brake them when the wind speed hits around 50-55 miles per hour, which is their upper safety limit.
Could a wildfire start by embers?
Yes, a wildfire can start by embers being carried by wind from a burning source to ignite dry vegetation in another location. These embers can travel long distances and have the potential to spark new fires in areas where conditions are conducive to their ignition.
Where do ocean waves start?
Ocean waves are formed by the wind transferring its energy to the surface of the water. When the wind blows across the surface of the ocean, it creates ripples that then develop into waves. The size and power of the waves depend on factors such as wind speed, duration, and fetch (the distance over which the wind blows).
Why is sound made when the wind blows through telephone wires?
1.The wind blows hard to create a sound so when the wind blows the wires start shaking and making another sound so together they make a loud sound. 2. When the wind blows through the telephone wires the wind blows the wires forcing them to vibrate. so technically because the wind makes the telephone wires vibrate. your welcome.
What does the initial wind speed mean?
The initial wind speed refers to the speed of the wind at the start of a specific measurement period or event. It is often a critical factor in meteorology and various applications, such as forecasting weather patterns, assessing storm intensity, and evaluating the potential for wind energy generation. Understanding initial wind speed helps in predicting how wind conditions may evolve and impact the environment and human activities.
What is the start up time for wind?
The planet always has wind, your question is spurious.
How does the ocean water start moving?
by the wind
At the start of wind waker does link have powers?
No
What causes wind storms?
when heat and cooled air mix together it may start a wind strom
What is a wind instrument that starts with the letter B?
Bagpipe and bugle are wind instruments. They start with the letter b.
When did earth wind and fire band start?
1969
What is a heavier wind that start with the letter G?
gale
How dos wind start?
Wind happens when there is a change in pressure in the atmosphere which causes air to rush to the lower pressure area, thus causing wind.
Halloween words that start with the letter I?
icorn
How did Gone With the Wind start?
With Scarlet O'Hara's family at home
What wheather word start with z?
· zonal wind flow
What are 6 compound words start with the word wind?
windsockwindpipewindblownwindbreakwindbagwindstorm
