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SOURCES OF ENERGY
- 3. This source can be classified as:- i) Tidal energy ii)wave energy iii)ocean thermal energy
- 4. i) TIDAL ENERGY • The rise of ocean water due to attraction of the moon is referred to as high tide and its fall as low tide. • The enormous movement of water due to high and low tide provide a large amount of energy known as ocean tidal energy.
- 5. This energy can be utilized by constructing a tidal barrage or dam.
- 6. ii)WAVE ENERGY • The energy obtained from the high speed sea waves is referred to as sea wave energy. • drive dynamos which convert kinetic energy into electrical energy.
- 7. iii) OCEAN THERMAL ENERGY • The energy available due to the temperature difference between the deeper levels and surface of an ocean is called as ocean thermal energy.
- 8. “ ”
- 9. Through where? Molten rocks in earth's crust, which are pushed upwards and trapped in When ground water comes in contact with this hot spot,steam is generated. Hot water from the regions comes out known as springs.
- 10. How to get energy? THE STEAM IS TRAPPED IN ROCKS WHICH ROUTED THROUGH A PIPE TO A TURBINE. WHERE THE ELECTRICITY IS GENERATED.
- 11. Why geothermal energy? Cost of production would not be much. Bcz very few commercial sites where energy is produced. It is renewable.
- 13. What is it? In a process called nuclear fission, the nucleus of a heavy atom (such as uranium, plutonium and thorium) when bombarded with low- energy neutrons, can be split apart into lighter nuclei. the fission of an atom of uranium produces 10 million times the energy produced by the combustion of an atom of carbon in coal.
- 14. The released energy is used to produce stem and further generate electricity. The major hazard of power generation is the storage and disposal of spent or used fuels as uranium decays into harmful subatomic particles.
- 15. The fundamental physics of the fission chain reaction in a nuclear weapon is similar to the Physics of a controlled nuclear reactor (but both are engineered differently.
- 16. ITS BEING hAzArDoUs. The expensive installation of a nuclear power plant, high risk of environmental contamination and limited availability of uranium makes large –scale use of nuclear energy prohibitive. The major hazard of power generation is the storage and disposal of spent or used fuels as uranium decays into harmful subatomic particles.
- 17. ALL NUCLEAR REACTORS ARE BASED ON NUCLEAR FISSION. IT RELEASE A TREMENDOUS AMOUNT OF ENERGY. SUCH REACTIONS HAPPEN IN SUN AND STARS.
- 18. HYDROGEN BOMB IS BASED ON THERMONUCLEAR FISSION REACTION. THE HIGH TEMPRETURE GENERATES SUFFICIENT ENERGY FOR LIGHT NUCLEI TO FUSE AND PRODUCE A DEVASTATING AMOUT OF ENERGY.
- 19. ACCORDING TO EINSTEN:- THE MASS OF THE PRODUCT IS LITTLE LESS THAN THE SUM OF THE MASSES OF ORIGINAL INDIVIDUAL NUCLEI.
- 20. Environmental Consequences EXPLOITING ANY SOURCE OF ENERGY DISTURBS THE ENVIRONMENT IN SOME WAY OR THE OTHER.
- 21. FACTORS OF SOURCE :- Ease of extracting energy. Economics of extracting energy The technology available Environmental damage consequences source is cleaner than others.
- 22. What really is it? all energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas— do substantially more harm than renewable energy sources by most measures. It includes air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
- 24. EXHAUSTABILITY Sources that will get depleted are called exhaustible resources. Sources that can be regenerated are called renewable sources of energy.
- 25. RENEWABLE ENERGY THIS ENERGY IS AVAILABLE IN OUR ENVIRONMENT. IT IS STORED IN SOME CONTINUING CURRENTS OF ENERGY IT HAS LARGE UNDERGROND RESERVOIRS. THE RATE OF DEPLETION IS NEGLIGIBLE.
- 26. “ ” Now you may think of other resources!!!!!!!!!!!!!!!!