Despite simple mechanism consisted of 144 wood boards, which composed a diameter of 17 m, this machine worked for 20 years and produced 12 kW of electricity. Until 1940 such Brush's machines have been widely distributed until modern sources of energy, oil and gas, were introduced. With current energy crisis people look back to clean wind energy and try to revive and improve this technology. Development of wind turbines during last 3 decades is shown in figure1 (Ahilan, Mohammed and Arumugham, 2009). In this graph it is clearly seen how power, generated by wind turbine, rapidly increased from year to year with the growth in diameter also. .
Scientist state that world energy needs will increase by 60 % ( Ahilan, Mohammed and Arumugham, 2009). During last few years wind energy was successfully implemented and used in some developed countries, such as USA, Spain, Germany and India. India is 4th user of wind energy in the world. In some places with appropriate conditions wind generated energy can compete with coal firing plants. Not only wind farms are distributed and developed in India, but also individual wind turbines are well spread. Figure 2 ( Ahilan, Mohammed and Arumugham, 2009) shows wind technology installation In Indian states till April 2007.
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Figure1. Development of wind turbine technology up to 2010.
United States made the largest addition of 3 gigawatts in 2007; moreover Texas has become world leader in wind energy production. The largest wind energy developing firm is placed in Spain. After 2006 top 3 countries changed so that 1st place has been taken by Germany with capacity of 20,622 MW, Spain had capacity 11,615 MW and took 2nd place, whereas United States shifted to the 3rd place with capacity only 11,575 MW. Each country developed its own program which considers growth in the usage of wind energy and unlikely to reduce use of other sources.
It would be mistaken to take into account only advantages of wind energy, downsides and adverse effects also should be mentioned.
These include: solar energy, wind energy, and hydroelectricity. ... Solar Power, hydroelectricity, and wind energy are all methods of renewable energy sources. ... Solar energy is in essence getting energy from the sun. ... In many cases, wind energy is an ideal power solution. ... Most of the petroleum bi-product is used to produce energy. ...
Energy is a vital part of life. Energy is so important that it makes me think what is the future for energy. ... Wind power and solar energy are two ancient energy sources that have benefited from developments in modern technology. Wind energy is a widely available resource. ... The sun is another means by which we can attain energy. ...
There are two types of energy, Potential Energy and Kinetic Energy. Potential energy is the capacity to do work. Kinetic energy is the total amount of work that is done. ... The producers then use this energy as a form of food. ... ATP is an energy carrier; it transfers some energy to metabolic workers and is formed by aerobic respiration. ...
Energy Supply and Demand Energy supply is the total amount of usable energy available to people for doing work. ... Heat energy is the most commonly used form of energy. Energy may be obtained directly from an energy source, as when people burn wood to produce heat. ... The rapid growth of energy use endangers the world's supply of energy. ... Conserving energy and using it wisely will also make the energy supply last longer. ...
In order for our bodies to gain energy we must digest foods to fuel our bodies. That energy comes from foods and drinks that we consume everyday. ... The law of conservation of energy states that energy is neither created nor destroyed, in order for that to be true for example in eating we wonder where the energy goes. ... The energy that is not used is excreted not destroyed. ... We all use some source of energy and we wonder what happens to it and by the wonders of modern chemistry we can understand apply the law of conservation of energy. ...
Senior Project: How to build an energy efficient house Technology advances on a daily basis. To make these advances the technology needs to be fueled by a form of energy. ... Homes are one of the largest energy consuming units known today. ... Energy prices have been so erratic over the past few years" people are always looking to save money when it comes to energy. I have researched energy efficiency and now I will explain what I have discovered and what I would use to build my energy efficient house. ...
Conservation of Energy Objective: The objective is to find the spring constant, and to find the potential energy of the system. ... The data indicated for the mechanical energy is conserved for this system. ... Another purpose of the lab was to study the effect of conservation of energy. ... Equations for both gravitational and spring potential energy were used. The low percent error between the two values proves that the energy is conserved. ...
The third type is the more efficient use of energy; adjusting to higher energy costs. ... Increased energy efficiency helps the world energy balance and productive conservation is no less an energy alternative than the energy sources. ... Low energy prices make it difficult to convince people to invest in energy efficiency. ... High-energy prices in the 1970s started efficient energy use in constructing buildings and houses. ... Energy is the basis of industrial civilization; without energy, modern life would cease to exist....
It is the energy created in this reaction that powers the car. ... Geothermal energy is a huge source of energy that is clean and reliable. ... Flowing water has a lot of energy. People over the years have developed ways to harness the kinetic energy and convert it into mechanical energy, then electrical energy. The most common way to harness the energy is by use of a dam. ...
