V
vcvyxuowsc
Membre Banni
- 8 Janv. 2011
- 2
- 0
- 421
- 44
Wind is common in most areas, but there are locations with an even larger amount of wind, thus allowing for more energy to be generated. While these locations may be slightly more beneficial
Vous devez etre connecte pour voir les liens.
, that does not mean that it is not possible for wind energy to be utilized effectively in other locations. Wind is generated based on the earth's surface - the irregular topography, the planet's rotation
Vous devez etre connecte pour voir les liens.
, and variations of the earth's temperature. The wind flow is based on changes across the surface. Locations are studied to find which locations have optimum amounts of wind flow. There are some wind turbines that are even designed to adjust to the optimum angle to generate wind energy. The most common types of wind turbines are horizontal wind turbines
Vous devez etre connecte pour voir les liens.
, which are tall shafts with long
Vous devez etre connecte pour voir les liens.
, horizontal, rectangle turbines at the top. These rotate with the wind, which spins the shaft. The shaft turns the generator at the bottom, thereby generating energy. There are three types of wind farms: land farms
Vous devez etre connecte pour voir les liens.
, near-shore
Vous devez etre connecte pour voir les liens.
, and off-shore. Land wind farms are three kilometers or more inland. The often align themselves to the wind. It can be difficult to get approval for these wind farms because some people believe they have a negative aesthetic nature. Near-shore wind farms are installed just off the shoreline and
Vous devez etre connecte pour voir les liens.
, on occasion
Vous devez etre connecte pour voir les liens.
, on the beach itself. Near-shore wind farms benefit from one-directional
Vous devez etre connecte pour voir les liens.
, constant wind. This is very similar to the characteristics of land farm wind turbines. The topography is studied to choose the sites that have the highest amount of constant wind. Near-shores have a downside, noise pollution. When placed in a direct line, they can create a noise nuisance, which is irritating to local residents and can lower the value of real estate. Off-shore wind farms are built 10 kilometers away from the land, are the most expensive to build, and have the highest maintenance costs due to salt water corrosion. However
Vous devez etre connecte pour voir les liens.
, they are also able to produce the most electricity. Wind travels very quickly over water
Vous devez etre connecte pour voir les liens.
, and sometimes in the same direction. These turbines direct themselves in the optimum place for energy generation. Off-shore wind turbines transfer their electricity to land via a large cable. The selection of the wind turbine site is important to the overall development of wind power. While wind is an obvious necessity in the choice of location
Vous devez etre connecte pour voir les liens.
, the availability of transmission lines
Vous devez etre connecte pour voir les liens.
, value of energy to be produced, the cost of land, land use considerations, and environmental impact are also important things to consider. Off-shore locations offset high construction costs with higher annual load factors. This reduces the cost of energy produced. From 2005 to 2008, energy generated through wind-farms doubled. Wind generation is now being used commercially in 80 countries and the number is rising. It is possible to use wind turbines for energy generation in most locations. Wind turbines are clean
Vous devez etre connecte pour voir les liens.
, pollution-free, and create no greenhouse gases. Small wind turbines can power an entire house
Vous devez etre connecte pour voir les liens.
, with enough energy left over to sell back to the energy network.
Vous devez etre connecte pour voir les liens.
Vous devez etre connecte pour voir les liens.
Vous devez etre connecte pour voir les liens.
Vous devez etre connecte pour voir les liens.
