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GUIDED BY:
Mr. Thomas Abraham
Mr. K.R Arjun
Presented by:
Delano Mathew Felix
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INTRODUCTION
Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable.
Climate change concerns, high oil prices, and increasing government support, accelerates the growth of this sector.
In 2008, about 19% of global final energy consumption came from renewable sources.
With nations pledging to reduce the carbon emission to counter global warming, the need for systems that generate renewable energy has been
on a rise.
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FLOATING WIND TURBINES
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1 INTRODUCTION
Non-renewable resources such as coal, natural gas, oil, and nuclear power are the primary
sources of energy for many parts of the world. Burning fossil fuels, however, is harmful
to the environment and fossil fuel supplies are limited and subject to price volatility. And
the safe storage and disposal of radioactive waste, the potential for radioactive
contamination from accidents or damage and the threat of nuclear explosion are serious
challenges to the success of nuclear power. Renewable resources such as wind possess
great potential because they are indigenous, non-polluting, and inexhaustible. The vision
for large-scale offshore floating wind turbines was introduced by Professor William E.
Heronemus at the University of Massachusetts in 1972 [1].
2 OFFSHORE WINDS, WAVES AND RESOURCES
2.1 Offshore wind speeds
Offshore wind speeds are higher than coastal wind speeds at sea level. Ten kilometres
from the shore, speeds may be 25% higher than at the coast and there are large areas of
the North Sea and Baltic with wind speeds above 8 m/s (at 50m). Offshore winds are less
turbulent than onshore winds, and wind shear is less. As the roughness of the sea
increases with wind speed (as wave heights increase), so shear and turbulence slowly rise
with wind speed above about 10 m/s.
2.2 Offshore wind farms vs. onshore wind farms
Compared with onshore wind farms, offshore wind farms have several advantages. First
of all, due to the larger wind speeds at sea, offshore wind farms may yield up to 50%
more annual electricity than onshore wind farms of equal capacity and type. Second,
onshore wind farms often meet public resistance from visual impact, noise production and
shadow casting; for offshore locations, with sufficient distance to shore, these issues are
far less important. Third, for some countries, the available technical potential is very large
compared with other renewable electricity options.
3 BACKGROUND
3.1 Wind power
Wind power is defined as energy derived from the conversion of kinetic energy of
moving air into useful forms such as electric energy for powering homes and industries.
Wind energy is not only a renewable form of energy, but also a clean energy source, since
it does not produce any harmful by-products or emissions that can damage the
environment. Wind energy is also an attractive form of energy generation, because it
utilizes wind which is found abundantly in many areas of the world.
3.2 Offshore wind power
Offshore wind power utilizes the vast wind energy resources found offshore to produce
electricity. More accurate wind data collection shows that most of the wind resources lie
off the coast, and this is evident in the US wind map in section 1 of this report [2]. It is
this abundance of wind resources offshore that has brought an increased interest in the
development of electricity-generating wind facilities in open sea waters.
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to get information about the topic " wind turbine" full report ppt and related topic refer the page link bellow
http://studentbank.in/report-floating-wind-turbines
http://studentbank.in/report-a-new-inter...-wind-farm