Contents contributed and discussions participated by mannixjul00 - qmstech2

shared by mannixjul00 on 27 Sep 13 - No Cached

Archeologists have also found evidence that the Romans in England used it in the second and third centuries (100-200 AD). 
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In the 1700s, the English found that coal could produce a fuel that burned cleaner and hotter than wood charcoal.
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shared by mannixjul00 on 03 Nov 12 - No Cached

shared by mannixjul00 on 24 Sep 13 - No Cached

Burning fossil fuels creates carbon dioxide, the number one greenhouse gas contributing to global warming. Combustion of these fossil fuels is considered to be the largest contributing factor to the release of greenhouse gases into the atmosphere. In the 20th century, the average temperature of Earth rose 1 degree Fahrenheit (1°F). This was a period that saw the most prolific population growth and industrial development
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Some estimates say our fossil fuel reserves will be depleted within 50 years, while others say it will be 100-120 years.
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Sun, wind and water are perfect energy sources…depending on where you are. They are non-polluting, renewable and efficient
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The object is to capture and harness their mechanical power and convert it to electricity in the most effective and productive manner possible.
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Another form of hydroelectric energy is tidal power. In use since the early 1900s, tidal power stations collect the energy created by the rise and fall of the tides to convert to electricity.
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- mannixjul00 on 24 Sep 13
  
  history maybe?
  
  <div class="cArrow"> </div><div class="cContentInner">history maybe?</div>
  
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shared by mannixjul00 on 23 Sep 13 - No Cached

Verdant Power founders are planning to install up to 30 turbines with the total capacity of 1MW in the East Channel of the East River, writes The Day news portal.
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Verdant Power is among the first companies that are exploring the potential of the tidal energy. Unlike the wind and solar power, tidal power is predictable as the tides move in correlation with the movement of the moon
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The initial costs for the development of this technology are high. The company has raised USD 35 million so far and needs USD 25 million more.
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shared by mannixjul00 on 23 Sep 13 - No Cached

It was used in the watermills along the shores of England during the Roman age and also used along the shores of France and Spain. This period was around 900 AD. The water rising from the tides was impounded in barrages and it was allowed to flow through waterwheels and other energy capturing devices thus capturing the energy and converting it into useful work used to grind grains and produce flour. The first tidal mill in the US was built in Salem, MA in 1635.
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In recent history it was not until the 1960s that a tidal energy plant was built in France, on the estuary of La Rance, to capture the tidal energy and produce electricity. The plant has been operating for the past 50 or so years producing electricity without missing a tide. The second tidal energy plant was built about 20 years later in 1982 in Nova Scotia, Canada.
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Water is much denser than air and this means that the tidal energy turbines would be much smaller than the wind energy turbines needed for the production of the same amount of electricity.
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produced by the rise and fall of tides which occur in all parts of the world.
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shared by mannixjul00 on 11 Mar 13 - No Cached

Tidal turbines are very much like an underwater windmill where the blades are driven by consistent, fast-moving currents.  The submerged rotors harness the power of the tidal streams to drive generators, which in turn produce electricity. Water is 832 times denser than air so consequently tidal turbine rotors are much smaller than wind turbine rotors generate equivalent  amounts of electricity, and they can be deployed much closer together. Devices that harness tidal stream energy present a unique set of engineering challenges in terms of design, installation and maintenance. During operation, the force of the tidal flow in Strangford Lough is equivalent to a 345 mph wind generating a 100 tonnes of thrust on the rotors.
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