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Thousands of people are looking for alternative sources of electric power. Every person knows that solar power and wind turbine electric generation proffer an eco friendly alternative to fossil fuel produced electricity. A third alternative for electric production is magnetic power generation.

Proponents of this idea claim that once the primary equipment is purchased, the owner receives free energy forever. The basic premise of magnetic power generation is that once the generator is powered up, it will continue to produce electricity indefinitely. If true, this equipment has the potential to revolutionize electrical production. Let’s dig deeper into this subject and discover the shocking truth about magnetic power generation.

The search for free energy has fascinated mankind for centuries. Leonardo Da Vinci made a number of drawings of machines that he thought could be capable of making free energy. Nikola Tesla has been called the father of free energy. More recently, Bruce De Palma and John Christie have developed what they call the future of free energy.

In 1977, Bruce De Palma constructed his N-Machine, which he claimed used rotating magnets to produce energy. The N-Machine supposedly generated up to four times more output energy than input energy, creating overunity. Overunity or perpetual motion refers to any device or system that perpetually produces more energy than it consumes.

Australian inventor John Christie of Lutech Australia Pty Ltd claims to have developed a magnetic power generator capable of 440% overunity. Unfortunately, neither of these magnetic power generators has been independently verified as capable of producing overunity. Critics claim that such a generator cannot produce overunity or free energy. To do so would defy a basic law of physics, the conservation of energy. Unlike solar and wind power there are currently no power companies using magnet powered generators for electrical production.

Many of the websites that promote the idea of magnetic power generation offer DIY plans for making the generator. Can you really get free energy from a DIY magnetic power generator? One site, Magniworks, claims that their plans will let anyone construct a power generator for less than $100, using materials available at any hardware store. In addition, this easily constructed power generator could replace 50% or more of your electric usage. The site states that hundreds of these generators have been built from their plans and they list several satisfied customers. Using directory assistance and a web based search service I tried to locate the U.S. based individuals claiming to have built and installed these generators. Unfortunately, I was unable to locate any of the references listed on the Magniworks website.

Unable to verify any actual working installation, I decided to download the magnetic generator plans from the Magniworks site. With these plans I was getting to the truth about magnetic power generators. The plans offer detailed parts list, illustrations and instructions. However, after constructing the generator you have something that is a science project, not an alternative energy solution. The generator is tiny (approximately 4 inches square) and according to the printed specifications produces only 24.5 watts of output. Think about that. 24.5 watts is less than half the power needed to light up a single 60 watt light bulb. To replace 50 percent or more of your current electric usage you would have to build 20-25 of these generators and then wire them together.

So what is the shocking truth about magnetic power generators?

1. Magnetic power generation claims for achieving overunity have not been independently verified. Free energy from magnets is still a theory, not proven concept.

2. The popular Magniworks DIY generator, even if it works, is not large enough to generate a meaningful amount of electricity.

in conclusion, don’t waste your time or money chasing the free energy promised by the magnetic power advocates. Stick with proven alternative energy sources. Solar power and wind turbine power, while costing more that $100 to set up, do actually produce real usable electricity. Some of the components, solar panels and wind turbines, can be constructed at home. Excellent plans for solar panel and/or wind turbines are available for you to download.

If you are going to build your own home solar or wind turbine power system, you must have complete detailed plans and material lists. Check out the top rated DIY alternative energy plans .

Article Source : The Shocking Truth – Magnetic Power Generators : ArticleBase

Sam Jones -
About the Author:
Sam Jones is an advocate for Green Energy Solutions and affiliate for green products
 

The Aerodynamics Of The Wind Turbine – Part 3

THE CHANGE OF FORCES ALONG THE BLADE

The drawings previously studied, mainly illustrate the air flow situation near the blade tip. In principle these same conditions apply all over the blade, however the size of the forces and their direction change according to their distance to the tip. If we once again look at a 450 kW blade in a wind speed of 10 m/s, but this time study the situation near the blade root, we will obtain

slightly different results as shown in the drawing above.

In the stationary situation (A) in the left hand drawing, wind pressure is still

80 N/m2 . The force ÒFÓ becomes slightly larger than the force at the tip, as the blade is wider at the root. The pressure is once again roughly at a right angle to the flat side of the blade profile, and as the blade is more twisted at the root, more of the force will be directed in the direction of rotation, than was the case at the tip.

On the other hand the force at the root has not so great a torque-arm effect in relation to the rotor axis and therefore it will contribute about the same force to the starting torque as the force at the tip.

During the operational situation as shown in the center drawing (B), the wind approaching the profile is once again the sum of the free wind ÒvÓ of 10 m/s and the head wind ÒuÓ from the blade rotational movement through the air.

The head wind near the blade root of a 450 kW wind turbine is about 15 m/s and this produces a resulting wind ÒwÓ over the profile of 19 m/s. This resulting wind will act on the blade section with a force of about 500 N/m2.

In the drawing on the right (C) force is broken down into wind pressure against the tower ÒFaÓ, and the blade driving force ÒFdÓ in the direction of

rotation.

In comparison with the blade tip the root section produces less aerodynamic forces during operation, however more of these forces are aligned in the correct direction, that is, in the direction of rotation. The change of the size and direction of these forces from the tip in towards the root, determine the form and shape of the blade.

Head wind is not so strong at the blade root, so therefore the pressure is likewise not so high and the blade must be made wider in order that the forces should be large enough. The resulting wind has a greater angle in relation to the plane of rotation at the root, so the blade must likewise have a greater angle of twist at the root.

It is important that the sections of the blade near the hub are able to resist forces and stresses from the rest of the blade. Therefore the root profile is both thick and wide, partly because the thick broad profile gives a strong and

rigid blade and partly because greater width, as previously mentioned, is necessary on account of the resulting lower wind speed across the blade. On

the other hand, the aerodynamic behavior of a thick profile is not so effective.

Further out along the blade, the profile must be made thinner in order to produce acceptable aerodynamic properties, and therefore the shape of the profile at any given place on the blade is a compromise between the desire for strength (the thick wide profile) and the desire for good aerodynamic properties (the thin profile) with the need to avoid high aerodynamic

stresses (the narrow profile).

As previously mentioned, the blade is twisted so that it may follow the change in direction of the resulting wind. The angle between the plane of rotation and the profile chord, an imaginary line drawn between the leading edge and the trailing edge, is called the setting angle, sometimes referred to as ÒPitchÓ.

Article Source : The Aerodynamics Of The Wind Turbine – Part 3 : ArticleBase

yoni levy -
About the Author:
 
RunGreenPower.com will teach you how to build solar & wind power systems foryour home within a weekend.
 
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