Posts Tagged ‘Vertical Axis’

How Does A Tower Mill Work

November 18th, 2009

Wind energy has been used to accomplish many human tasks over the centuries, but one country has been related to its use closer than any other in history. That country is the Netherlands.

When bladed windmills were used in the Middle East and China, they tended most frequently to have a vertical axis that’s, a shaft that stood up straight with the attached “sails” also vertical, standing out from that central shaft. But by the point this powerful tool moved into Europe, the axis had gone horizontal, frequently sticking out from the side of a building that contained large gears that translated the motion into helpful work within. This was known as a “tower mill,” and it was the Dutch who took that idea and just about perfected it.

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In a tower mill, the horizontal shaft came out of the building on one side, near to the top. On the higher floor resided the large gear wheels that turned varied tools on lower floors, like the large stones that would grind grain. Frequently someone known as a “wind smith” would live on the bottom floor of the windmill with his folks, or in a dwelling attached to the side of the main building. He would be the one that maintained the mill, actually furling the sails during storms, or maybe manually turning the head of the building so that the sails might be oriented into the wind if its direction modified.

There had been a great amount of helpful work indeed for the windmills to do in the Netherlands, and soon they were dotted all over the landscape. It is worked out that at one time there were 9,000 to ten thousand operating windmills in the country. Just like others in the rest of Europe, an enormous proportion were used to grind grain, powering single or multiple grinding stones. As trade increased, a number of these mills also processed the new commodities coming from other bits of the world, like cocoa or spices. And a couple of others even served as saw mills.

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Wind Power

November 10th, 2009

Wind power is taking the energy generated from the wind and using it in more productive ways. Wind turbines are a machine that can transform the kinetic energy found in wind and convert it into mechanical energy. Mechanical energy works with kinetic energy to balance into the mechanical system. When the mechanical energy is converted into electricity it can be called a wind turbine.

There are two different types of wind turbines; Horizontal axis and Vertical axis. The most common of these two are the horizontal axis. Horizontal axis features the main rotor shaft and generator at the top of the turbine. The horizontal axis is pointed into the wind. Most of these horizontal axis have a gearbox that allows the blades to turn quicker to generate more electricity. The tower is what provides turbulence. The turbine can be pointed somewhat upward and stand well above the blades. The blades are made of durable material capable of withstanding high winds.

When you see these turbines in the field you may think that they are no longer helpful but there are several people who believe in using them still. Horizontal axis wind turbines can either turn upward or downward. If they choose to turn the blades upward, they don’t hold good together for longer periods of time. They begin to crack and breakdown in high winds. When the blades are downward facing they stay in line with the wind longer and they can outlast through the high winds without breaking. Because they are so durable it keeps the cost down as well.

Types of Horizontal Axis Wind Turbines

Windmills Consists of four or more blades, usually short, and can wooden blades. These were used to grind grain. As the winds picked up it would rotate a mechanism inside allowing it to run the grain through a mill crushing it.

Rural Windmills was originally from Australia but later moved over to the USA. Farmers found that this type of windmill was good to pump water and electricity to the barns and fields. This windmill had several blades and can still be seen today in fields. They were constructed of metal usually in order to carry electricity for lights or maybe a radio.

Modern Turbines are what we have now standing in fields. They feature three blades that are pointed at the ends. The reason for their unusual shape is because they have been proven to exceed wind velocity up to 6 times more, allowing for high efficiency and reliability.

The advantages of this type of wind turbine include stability, tallness, bendable, durable and strong. The disadvantages my include cannot operate well close to the ground, hard to transport over sea, difficult to install, not in big demand, there are concerns with how they affect radar, structural damage done with storms and wear.

There are good points and bad points to owning these types of turbines. They have been proven to work and you can have one or thirty one out in your field. They do help to generate electricity and other great things that we would normally have to go without.

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Wind Turbine

July 12th, 2009

What is a wind turbine?

A wind turbine is also referred to as a windmill or wind generator. Though the expressions are used interchangeably, there is a minor difference. The wind turbine is the mechanism that makes use of the wind power to produce mechanical energy. This mechanical power is then used as is or converted into electrical energy. A windmill uses the mechanical energy as is for pumping out water or for grinding purposes while the wind generator is the one that creates electrical energy.

What are the various types of wind turbines?

Wind turbines are classified into two kinds based on their orientation:

Horizontal axis turbines: The blades in these wind turbines turn along a horizontal axis.

Vertical axis turbines: The blades in these turbines turn along a vertical axis.

The horizontal axis wind turbines are more commonly used. They are more efficient that vertical axis turbines.

What are the advantages of installing a wind turbine?

Let’s look at the major advantages of a wind turbine:

Power-saving: Since the wind turbines use a free energy, the wind energy, they prove to be a very cost-effective means for generating electricity, thus helping not only save energy but also generate power for the world.

Cost-effective: The only cost involved in installing a wind turbine is the original cost and the cost of maintenance. The power comes free and here is no other fuel.

Environment-friendly: The wind turbines are environment friendly in a manner that they do emit harmful gases or affect the environment in any way.

Uninterrupted power supply: A wind generator helps you become independent of government s electricity supply. Moreover, you overcome the hurdles of power outages.

What are the factors you ought to contemplate for installing a wind turbine? While installing a wind turbine is exceptionally beneficial for you and for the rest of the planet, you must take care not to put into service the solution in an incorrect way. You should take into consideration the following when installing a wind turbine.

Make sure the following two pre-requisites are met:

The site for installation is at least of one acre area.

The average wind speed is around 11 miles per hour.

Make sure the tower and the base are sturdy. It is crucial to anticipate the turbulence in the wind before you invest in the wind turbine.

Make certain the tower s height and the distance between the wind generator and the cells are optimum.

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