Posts Tagged ‘homemade wind turbine’
Different Wind Turbine Blade Designs
December 1st, 2009 | 
Author: Wind turbines are one of the oldes known devices used for generating power. Although the basic idea behind wind generators has always remained more or less the same, wind turbine blades in particular have changed drastically over time, from the easily broken windmill blades of yore to the sleek blades of today. Today, wind turbines produce much more power from much less wind than ever before, which is largely due to these advancements.
Early wind turbine blades were essentially nothing more than large mats made from reeds. While they functioned reasonably well under the right conditions, they broke easily. If the winds got too high, these blades would often be broken.
Cloth sails were the next step in the development of wind turbine blades. In combination with an improved vertical axis style design, many early windmills utilized this type of blade in order to use wind energy for grain processing purposes.
The next major type of blade to be introduced was the wood blade, which was often used in conjunction with a horizontal axis configuration. This development reflected those seen in the world of aviation, as improving rotors often had these characteristics. The crucial advantage of wooden blades over previous models was that they could be both lighter and stronger, and therefore they were much more appropriate for generating energy in a wider variety of conditions.
Electricity was generated from wind turbines for the first time thanks to these designs. The first wind turbines of this type were fairly small in size, but it wasn’t long before they were scaled up and used in commerical settings.
From this period on, wind turbine blade development branched into two distinct paths: horizontal axis blades, and vertical axis blades. The following horizontal axis blades would differ in their shape and pitch, materials, and the number of blades used per rotor.
In most cases, 3-blade designs are the norm for horizontal axis wind turbines, as they have the best balance of stability and rotor speed. In most modern turbines, composite blades are used, which have great strength and flexibility in addition to being lightweight, which makes them perfect for both residential and industrial uses. Composite blades give wind turbines the ability to spin faster and generate more energy as well as pick up low-speed winds, making them significantly more efficient.
Furthermore, vertical axis wind turbines have seen a number of improvements which have made them appropriate for a wide variety of applications. Vertical axis wind turbines, too, can provide serious power, as they are usually engineered to take advantage of either wind drag or wind lift.
Vertical axis turbines can harness the power of the wind regardless of its direction. In this respect, they offer a more constant supply of power than the majority of horizontal axis turbines. Their capacity to produce power even without the need for a tower makes them especially appropriate for residential use.
To learn about the pros and cons of solar energy, check out Advantages and Disadvantages of Wind Power.
For the best guide to building your own wind turbines complete with step-by-step videos, For a step-by-step guide on building your wind turbines, check out Best DIY Solar and Wind Guides.
For another guide to building a diy wind turbine, visit Homemade Wind Turbine.
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Wind Turbine
Although solar power may be getting the most attention among renewable energy sources, when it comes to generating power, wind power is another viable option which may actually be superior in a number of situations. Today’s efficient, quiet and compact wind turbine systems can be a good option for just about anyone who’s looking to reduce their monthly electricity bills. Wind turbines can turn any location that has a breeze into a power generating area.
Some homeowners are even building their own wind turbines. This option is much more affordable. Once you’ve got the right components and a design, you can make a wind turbine in just a weekend. Do you want to know the price range of the different types of commercial wind turbines? You can check out wind turbines cost for futher information.
All it takes to put together a wind turbine are some technical skills and some simple tools.
There are a few basic components that are required for building a wind turbine. You won’t have any difficulty finding any of the parts you need to buy, and there are some parts you might already have on hand. All wind turbines have rotor blades, a generator, and sheet metal to mount the unit on.
The most important components of any wind turbine are the blades and rotor assembly. This is the part of the turbine that collects the wind and rotates. Different sources offer instructions for building rotor blades, which can be done using PVC pipe. This doesn’t take professional-level mechanical skills, either.
The next step is to find a suitable generator. Generators can sometimes come in surprising forms; the main component is a motor, even if it’s been salvaged from a completely different type of appliance. Motors that can produce electricity when rotated are appropriate for this purpose.
Once you have all of these parts, all that’s left is to set the rotor and blades on one end of a platform and join the shaft from the rotor to the shaft on the generator. For the greatest amount of free energy possible, set up the wind turbine in the best available place in terms of wind velocity and consistency.
For the greatest guide to building your own homemade wind turbine, including detailed diagrams and videos, visit Earth4Enegry Review.
Here’s another guide to building your own home solar power system How to Build a Wind Turbine.
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Advantages and Disadvantages of Wind Power
Residential wind turbines are a great way to generate energy, thanks to advancements seen in recent years. New materials and technologies have enabled newer designs for residential wind turbines, and these in turn generate even more power from less wind than ever before. Furthermore, there are all kinds of styles and sizes of residential turbines on the market now, and homeowners are certain to find one that meets their requirements in terms of size and power.
Benefits
Endless energy
The wind will never stop. There’s no limit to the energy the wind can provide. Fossil fuels can’t make that claim. Non-renewable sources of energy including oil, coal and natural gas are just that – non-renewable. Once they’ve run out, there won’t be any choice but to start using other sources of energy. Decreasing reserves mean increasing costs, and the endless nature of wind means that its price remains constant, and therefore more and more attractive by comparison.
Energy without the bills
If you’re using wind energy, you won’t have to worry about kilowatt hours or anything like that. After the one-off cost of installing a wind turbine, you have permanent, free power. The previously impossible goals of going off the grid and saying goodbye forever to electric bills are now widely available with the use of residential wind turbines.
Clean energy
In addition to financial costs, you can also eliminate environmental costs by using wind power. The same can’t be said of fossil fuels, which constitute a serious threat to the environment in current usage quantities. You can reduce your carbon footprint significantly by using wind energy instead.
A truly domestic energy source
It’s often said these days that dependence on foreign oil is a serious problem for our country in terms of both security and economics. Electricity produced by wind turbines directly replaces energy that is derived from foreign oil, and therefore it can have a significant effect in terms of lowering dependence.
Energy at all times
One of the advantages that wind power has over solar power is that it can generate electricity for the home day or night and in any weather. As useful as solar panels are, they have the disadvantage of requiring sunny conditions. On overcast days, or at night, you’ll need an additional energy source, such as electricity stored in batteries or purchased from outside providers. These restrictions don’t apply to wind energy.
Any home configuration works
Solar power systems are held back by the fact that they require significant sun exposure in order to work at peak efficiency. For homes that have a lot of shade, or lack sufficient southern exposure on the roof, this can be a problem. A wind turbine isn’t affected by the same restrictions. Furthermore, a wind turbine takes up less total space than solar panels, while producing the same amount of power.
Disadvantages
Startup cost
There’s no doubt that the installation cost of a wind generator can be very high. In the long run, though, the free electricity that comes from a wind turbine will more than offset the initial cost. If you’ve got the know-how, some common tools, and some free time, you can even put together your own wind generator, which will make the entire process even more sensible from a financial standpoint. If you’re interested take a look at wind Generator Plans.
Height requirement
If you’re using a larger type of wind generator, you’ll need to be certain that it’s set up high enough to experience consistent, strong wind. Depending on the surrounding tree line and buildings, this can be very high. Wind generator users who are located in areas with many tall buildings or trees occasionally need to mount the generators on towers. The HOA permits or approvals that may be necessary in order to carry this out can add to the overall cost of installing a wind generator. Though, again, building a homemade wind turbine will help lower the cost.
Wind needed
Wind generators work best in areas with consistent wind. Of course, the more wind, the better. In other words, the fewer buildings and trees are present in the area, the better it will be for wind energy generation. Even though you can deal with these difficulties by making use of a tower, it is most efficient to produce wind energy in areas without these obstalces. A DIY guide will teach you how to build a wind turbine.
These are the benefits and drawbacks of wind power. For most people, the disadvantages end up being pretty insignificant in comparison to the advantages. Even solar power can’t compete with wind power when it comes to generating consistent power. Where solar power may suffer somewhat, wind power truly shines. Solar and wind power do share the common drawback of being costly to install. Perhaps the best way to deal with this problem, if you find the expense is discouraging you from moving forward, is to build your own wind generator.
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