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Modern wind energy systems consist of three basic components: a tower on which the wind turbine is mounted; a rotor that is turned by the wind; and the nacelle, which houses the equipment, including the generator, that converts the mechanical energy in the spinning rotor into electricity. The tower supporting the rotor and generator must be strong. Rotor blades need to be light and strong in order to be aerodynamically well-organized and to withstand prolonged use in high winds.
Tower
Improvements in structural design and construction materials have led to the construction of taller towers, allowing rotors to be mounted farther off the ground, where winds are typically stronger. Small wind turbines (less than 1 kilowatt) are installed on simple guyed (cable-anchored) poles ranging in height from 10 to 20 m (30 to 65 ft). Turbines from 1 to 30 kilowatts are installed on lattice or tubular towers ranging in height from 20 to 40 m (65 to 130 ft). Medium-size wind turbines are typically installed on tubular steel towers ranging in height from 25 to 50 m (80 to 165 ft). Wind turbine towers, which house the cables that conduct electricity from the generator through the base of the tower, can be constructed from metal, reinforced plastics, and concrete.
Rotor
The rotor, which spins when driven by the wind, supports blades that are designed to capture kinetic energy in the wind. Nearly all modern wind turbines have rotors that spin about an axis parallel to the ground. The spinning rotor turns a shaft which converts the wind’s energy into mechanical power. In turn, the shaft drives the generator, which converts mechanical energy into electricity. Even if some modern wind turbines have rotor blades made of composite wood, most modern wind turbine blades are made of fiberglass, a lightweight, strong material typically composed of polyester resins and glass fibers. Unlike the American farm windmill, contemporary wind turbines do not use blades made from aluminum or steel; aluminum is unable to withstand unremitting stress from flexing in strong winds, and steel is too gray. Small wind turbines typically use a tail vane to keep the rotor pointing into the wind. Most medium-size wind turbines use an electric motor to mechanically aim the rotor into the wind.
Generators
The generator converts the mechanical energy of the spinning rotor into electricity. Most wind turbines use a generator and transmission in combination. Many of these wind turbines use two generators, a small generator for light winds and a large generator for strong winds. Other wind turbines use a single generator that contains dual electric windings. These dual electric windings accomplish the same task as the combination of a small and a large generator. Some wind turbines use a further type of specially designed generator that is driven frankly by the rotor without a transmission.
Posts Tagged ‘Components’
Information Products – The 7 Components Your Need To Be A Success
Monday, January 25th, 2010Selling information harvest is one of the best ways to make cash online. All you need to make the product itself is a word processor but there are a few other vital things you need to have in place previous to you can start to make cash selling your product.
1. Give your product a home
The first thing you need to do is to buy yourself a domain name and sign up for a hosting account so that you can build a website. Your product needs a home on the Internet and your own website is the best place for it. A self-hosted Wordpress site does not require a lot of technical skill to set up, but if you don’t know where to start you can hire a name to build a site for you.
2. Make your product look attractive
To make your product stand out from the crowd you should invest in some feature graphics for your website header and for your ebook covers. People are visually orientated, if your website looks drab they are more likely to click away previous to finding out what you have to place forward them.
If you don’t have the skills to make your own graphics then you can hire a name else to make them for you.
3. Recruit a compelling salesletter
Now you need to get to work writing your salesletter. Spend some time researching your competitors to see what their salesletters are like, read some books on copywriting and how to write a winning salesletter.
Now you need to publish your salesletter on to your website with a link to your payment processor. Don’t get distracted by count paid advertisements or links to other websites, when a potential buyer lands on your sales page you want them to just buy your product and not get distracted.
4. Make sure your ebook is accessible
Your information product needs to be saved as a PDF file to prevent your customers from being able to edit the content. The fantastic thing about PDFs is that they can be read on Macs and PCs as well as on iPhones and other smart phones making them really versatile. To exchange your document into a PDF you can either invest in a programme like Adobe Acrobat or simply use the free Open Office software.
5. Set up a payment processor
You can’t sell your product without a payment processor. There are a number of companies to choose from including PayPal and Google Checkout. If you would like other people to promote your product as an affiliate then you should also consider Clickbank.
Previous to you start sending traffic to your salesletter you need to make sure that your payment processor is working. buy a copy of the product yourself so that you know what it does.
6. Reckon about affiliates
Depending on the price point of your product you might find that an affiliate programme is a fantastic way to increase sales. If you like to make information harvest but are not so interested in driving traffic to your sales page then you can pay other people to promote your product; every time a sale is made you simply pay them a commission.
7. Start driving traffic
When your salesletter is complete you should start driving traffic by implementing an article marketing campaign, commenting on blogs in your niche, taking part in blog carnivals and guest posting on other people’s websites.
The Basic Components Of A Blog
Saturday, December 26th, 2009Are you curious about blogging? Do you feel it’s time you took the plunge and started a blog of your own? Here’s a straightforward beginner’s guide to the world of blogging.What is a blog?At a basic amount, blogs are websites in which individuals can write about themselves, their thoughts, feelings, and concerns about any subject that wellbeing them. For more details www.greatblogbox.com For example, a horse rider might have a blog about horse riding, and the contents of that blog would be all about how she learnt to ride, what equipment she uses, what her thoughts are about various aspects of riding, competing, or just enjoying her life with horses. A name else might have a blog about traveling, and he might post updates on the new places he’s seen, what he has experienced there, and what advice he offers fellow travelers. As you can imagine there is no limit to the types of blogs and thousands more are started each week.Regardless of the design of a blog, most will contain the following elements: * Posts – these are the updates added to the blog by the author or any contributor. They can be a few lines or a total article of several hundred words. * Comments – these are the responses and reactions from the blog readers to posts by the author * Plug-ins – optional extras that a blog owner can add in order to add to the features on the blog. These might be a plug-in which allows the author to show pictures or adverts in the sidebar of the blog, or it might be a touch that increases the likelihood of the blog being found by search engines. There are thousands of plug-ins available and more are being devised all the time. * Widgets – like plug-ins, widgets enhance the show or add to the functions on the site. For more details www.blog-link-generator.com For example, you might want to use the calendar widget so that a calendar appears in the margin of your blog and the days on that calendar are hyperlinked to the posts (updates) you added on that particular day. * Blogroll – a list of links to other blogs that the author recommends * Theme – each blog design is known as a theme. There are many hundreds unreservedly available and there are commercially produced themes which anyone can buy. Some bloggers even go as far as having a theme tailor made to their specifications. How do I get started?If you are familiar with using the Internet and sending email then getting started in blogging should be very simple for you. You don’t need to know how to build a web site and you won’t need to learn any new skills. All you need to do is register for a free blog at one of the many sites that place forward this service. For example, there’s Wordpress, Blogger, or Technorati. Once you’ve registered at one of these sites you can start one or several blogs. As a beginner you’ll probably want to start just the one for now so that you can learn the basics and get used to the various areas. Make excellent use of the FAQ pages and User Guides on any of these sites. They are generally clear and simple to know and are there to help you.Your First BlogSo you’ve registered and produced your first blog – now what? Well, this is the fun part, or the hard part depending on your point of view. The vital thing is to adopt the habit of posting as frequently as possible. Add fresh content to your blog as evenly as you possibly can. This will probably be simple at first, especially if you have started a blog about your favourite pastime or leisure activity. You’ll be enthusiastic and you’ll have plenty to say so by all means add plenty of posts, but keep a touch back so that you can keep up the momentum of posting as the weeks pass by.In my next article I will describe how to enhance the look and feel of your blog, how to interact with other bloggers, and how to make your blog more attractive to search engines so that people will find it. After all, you’ve chose to express yourself so you will need to know how to attract some blog readers!Copyright 2009 Ben LovegroveBen runs My Footwear; a blog site listing the best in men and women’s footwear, designer shoes and boots, socks, tights, hosiery, stockings, belts and other accessories. Frequently updated with the newest offers from a variety of UK footwear and hosiery retailers
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