Background Information On Wind Energy Essay

Background Information On Wind Energy Essay

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This chapter briefly introduces the background information on wind energy at first. The climate change and energy crisis lead to growing interest in renewable energy systems especially in wind energy. Finally, it emphasises the essentiality of analysis for fatigue damage of wind turbine blades and the necessarily of reliability management and optimal maintenance strategies ahead for offshore wind turbine blades.
1.1 Brief History of Wind energy
Since early recorded history, people have harnessed the wind energy in different ways. As early as 5000 B.C, the Nile used wind to propel boats along the Nile River. By 200 B.C., simple windmills in China were used to pump water, while vertical-axis windmills with woven reed sails were grinding grain in Persia and the Middle East. The attraction of getting the free energy from the environment encouraged us to design machines in order to transfer the wind energy to work.
When it comes the first industrial revolution of steam power in the 1760s, the use of the traditional energy such as wind began to decrease while the use of fossil fuels appeared and increased. After technological revolution of electric power in the 1870s, the use of fossil fuels grew exponentially since fossil fuels has high energy density and constants availability at that time. This represented a much more attractive way of generating power than the mercurial wind.
However, a reduction in fossil fuel use occurred in the oil crisis since the price of oil increased for several years because of US intervention in the Yom Kippur war in 1973, which prompted many countries in the Middle East to withhold oil supplies from Western countries. At the same time, air pollution also began to influent the climate and harm to environme...


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... efficient steam engine and applied it for a patent in this year. With the steam engine, the Industrial Revolution began and coal had been extracting from the ground at a previously unpredicted rate. Between 1769 and 1800, annual coal production in UK was doubled and it was doubled once more over the next 30 years, which showed the trend has continued or worsened in recent years.
Figure 1.1 also shows the different types of fossil fuels contributing the atmospheric concentration of CO2 to the environment. After 1900, the fossil oil began to be produced increasingly, with lower price and more effectiveness. It became the main type of fossil fuels since 1950. Simultaneously, the use of natural gas was increasing and in some countries, the natural gas is one of the main type of fossil fuels using in household like UK after developing the oil and gas field in North Sea.

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