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Energy Sources and Conservation

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Introduction

YR10 PHYSICS Independent Learning Project Energy Sources and Conservation Energy is the capacity for doing work. A lump of coal and a tank of gasoline, together with the oxygen needed for their combustion, have chemical energy. Other sorts of energy include electrical and nuclear energy, and light and sound. Energy resources are stores of convertible energy. A renewable resource is a natural resource that is replaced by natural processes in a reasonable amount of time. Soil, water, forests, plants, and animals are all renewable resources as long as they are properly conserved. Solar, wind, wave, and geothermal energies are based on renewable resources. Solar energy is energy obtained from the suns radiation. Solar heating is widely used for industrial or domestic purposes and is an important renewable source of energy. Solar heaters usually consist of a black (heat absorbing) panel containing pipes through which air or water, heated by the sun, is circulated, either by thermal convection or by a pump. ...read more.

Middle

Tidal energy contributes to another renewable resource, which is obtained by harnessing the energy of water waves, wave power. The British engineer Stephen Salter who developed the Duck, a floating boom whose segments nod up and down with the waves, introduced the first wave power scheme in 1974. Another device, developed in Japan, uses an oscillating water column to harness wave power. However, wave power hasn't the potential to be used around the world, as it won't contribute significantly to the world's energy needs. Wind power can also be obtained as a renewable resource for the production electricity on a large scale by using wind turbines. Other simple, ancient ways of using wind energy are to sail ships and power windmills. This is a photo of an Operating wind turbine. Wind turbines are Usually found in large Numbers. A non-renewable resource is a natural resource, such as coal or oil, which takes thousands or millions of years to form naturally and can therefore not be replaced once it is consumed. ...read more.

Conclusion

It is one of the world's three main fossil fuels along with coal and oil. Natural gas is a mixture of hydrocarbons. It is usually transported from its source by pipeline, although it may be liquefied for the transport and storage and is often used in remote areas where other fuels are scarce and expensive. Nuclear fuels are another non-renewable resource. Nuclear energy or atomic energy is energy released from the inner core, or nucleus, of an atom. Electricity can be generated from the energy produced by nuclear fissions. In nuclear power stations, fission takes place in a nuclear reactor. The nuclei of Uranium are induced to split releasing large amounts of heat energy. The heat is then removed from the core of the reactor by circulating gas or water, and used to produce the steam that drives alternators and turbines to generate electric power. Unlike fossil fuels, such as coal and oil, which must be burned in large quantities to produce energy, nuclear fuels are used in very small amounts and supplies are therefore unlikely to be exhausted in the future. Edward Broom 10xh 21July 01 ...read more.

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