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Methods of Electricity Generation of Energy within the UK and Their Impact upon the Environment - Term Paper Example

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The author concludes that all the technologies used to generate electricity also generate CO2 around 30% of CO2 emission comes from the electricity generation. These emissions occur either directly from the plants or indirectly at any non-operational phase of the life cycle. …
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Methods of Electricity Generation of Energy within the UK and Their Impact upon the Environment
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Download file to see previous pages To reduce the damages caused to the environment the conservation of energy becomes important. Changing trends emphasize on using renewable, sustainable energy sources, an alternative to fossil fuels, the use of low or no carbon technologies to reduce the environmental hazards (the IET Energy principles, www.theit.org/factfiles). There are basically two main sources to derive electricity-
A fissionable material like Uranium is used to generate heat in the core of the reactor. This heat is passed away by a coolant liquid or gas, which is then used to generate steam. The fission reaction emits neutrons, controlled by a set of rods made of a material capable of absorbing neutrons. Lowering this rod can shut down the reactor in emergencies. To protect the operators "biological shield", consisting of concrete several meters thick, surrounds the powerful radioactive reactor. (Microsoft Encarta Encyclopedia 1993-2004 Microsoft Corporation). In the UK its use is increased from 8.5% (1992) to 10% (1998) for electricity production (the IET Energy principles, www.theit.org).
Gas provides 39% of electricity and 70% heat at homes in the UK (parliamentary Office of Science and Technology, postnote, February 2007 number 280). The UK is now venturing into; Combined Cycle Gas Turbine (CCGT) natural gas technology is used to generate electricity. This is not only efficient in its energy providing feature but also cost-effective, reliable and on top environmentally sounds. The process comprises of fuelling of gas turbines by natural gas, which heats water into steam. It is the steam that rotates an electricity generator. (http://www.edfenergy.com/about-us/energy-generation/story-power-generation.shtml)
It was the mainstay of electricity generation in the UK, accounting for one-third of the UK's electricity; this has reduced from two-third from the 1990s. It is estimated that one-third of the existing stations will close down by 2015 in compliance to the law made to restrict SO2 emissions (Parliamentary Office of Science and Technology, postnote, February 2007 number 280). The coal is finely grinded as face powder in pulverizing mills and mixed with warm air blown into the furnace, here it burns like a gas.  ...Download file to see next pagesRead More
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