Energy

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Guillermo Ruiz Alonso 2ºA
Isabel Ali Mesa 2ºA

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Energy

  1. 1. ENERGY E NE R GYGUILLERMO RUIZ ALONSO ISABEL ALI MESA 2ºA
  2. 2. I NDE XE n e r g y d e f in it io nTy pe s o f e n e r g yEne r g y s our c e sR e n e wa b l e a n d n o n - r e n e wa b l e e n e r g y s our c es .E n v ir io me n t a l imp a c tE n e r g y p o we r s t a t io n s
  3. 3. ENERGYEnergy is the capacity of an objectof doing a work.Energy exists in several forms.
  4. 4. T Y P E S OF E NE R GYMechanical energy: Two types:Kinetic energy-when theyre in motion is the energy that objects has.Potential energy-when theyre moved from their stable position of equilibrium is the energy that objects has.Electrical energy: when theyre connected to a supply of electricity it makes power machines work.
  5. 5. T Y P E S OF E NE R GYElectromagnetic energy: Electromagnetic waves transport this type of energy. Luminous energy is a type of these energy that is generated by artificial lights and the sun.Sound energy:Vibrations transmit sound waves.Chemical energy: Energy that is available for absorbing or releasing in chemical reactions.Nuclear energy: It can be released in nuclear reactions.Thermal energy: It is the energy generated and measured by heat.
  6. 6. ENERGY SOURCESEnergy sources:They are sources from which energy is obtained to provide light, power and heat.Clasification:RENEWABLENO RENEWABLE
  7. 7. NON-RENEWABLE ENERGY SOURCESCHARACTERISTICS:They come from limited natural resources.They will end by running out.Regeneration (a very slow process because it takes a lot of years).
  8. 8. NON-RENEWABLE ENERGY SOURCESThe main sources of energy used at the moment are:Nuclear energy.Energy from fossil fuels.
  9. 9. NON-RENEWABLE ENERGY SOURCES1. NUCLEAR ENERGY.PRODUCTION: Produced from the nuclear reaction of certain atoms in which the energy is stored in the nuclei of atoms. Nuclear fusion. Two light nuclei join to form a heavier nucleus (solar energy) Nuclear fission. Its the opposite of nuclear fusion in which a heavy nuclei is split into two lighter nuclei by bombarding it with neutrons.
  10. 10. NON-RENEWABLE ENERGY SOURCES1. NUCLEAR ENERGYTRANSFORMATION: Thermal energy is released by the reaction heats water and it is converted into steam under high preassure, the which moves the turbines of a generator to produce electrical energy.
  11. 11. NON-RENEWABLE ENERGY SOURCES2. COAL:Formed by the remains of plants that were buried and transformed (fossilised) in the abscense of oxygen 300 million years ago.It is classified into several types depending on the amount of carbon it contains.
  12. 12. NON-RENEWABLE ENERGY SOURCES2. COALEXTRACTION:EXTRACTION Open-cast mines (when the coal is close to the surface, soil is removed to expose it). Underground mines ( when the mineral is buried deep below the surface, it must be mined underground).
  13. 13. NON-RENEWABLE ENERGY SOURCES2. COALTRANSPORT: In the mine (carts). By sea. By land. By roads.
  14. 14. NON-RENEWABLE ENERGY SOURCES2. COALUSES For energy To generate electricity For central heating system For street lighting (in the past) As a domestic fuel (in the past) For other uses In the steal industres (coke) Making roads, plastics (pitch and tar)
  15. 15. NON-RENEWABLE ENERGY SOURCES3. PETROLEUMIts a liquid substance with a lower density than water.
  16. 16. NON-RENEWABLE ENERGY SOURCES3. PETROLEUMEXTRACTION: petroleum is usually deep underground. 1. Oil rig at sea 2. Pumps 3. Purification
  17. 17. NON-RENEWABLE ENERGY SOURCES3. PETROLEUMSTORAGE AND TRANSPORT
  18. 18. NON-RENEWABLE ENERGY SOURCES3. PETROLEUMTRASFORMATION AND USESFractional distillation is a process carried out in refineries Methane EXAMPLE
  19. 19. NON-RENEWABLE ENERGY SOURCES 4 NATURAL GAS Mixture of gases formed from decomposed plants and animals It is expesive to extract It is often found along with petroleum depositsExtracted by drilling Trasported by gas pipelines To a liquefaction plant
  20. 20. NON-RENEWABLE ENERGY SOURCES4 NATURAL GASUSES: Industry and homesWORLD RESERVES OF FOSSIL FUELS ALMOST 80% OF THE WORLD
  21. 21. NON-RENEWABLE ENERGIES AND THE ENVIRONMENTCO2 (CARBON DIOXIDE is realesed when we  burn fossil fuels)
  22. 22. NON-RENEWABLE ENERGIES AND THE ENVIRONMENTItis ar in ora ot for ofprecipit t t tis unusual a a ny her m aion ha ly cidic.
  23. 23. NON-RENEWABLE ENERGIES AND THE ENVIRONMENTWhen petroleum is accidently released into the sea
  24. 24. NON-RENEWABLE ENERGIES AND THE ENVIRONMENTNUCLEAR WASTE must bestored in extremely safe conditions
  25. 25. NON-RENEWABLE ENERGIES AND THE ENVIRONMENTRISING WATER TEMPERATURE THIS HAS A NEGATIVE EFFECT ON ANIMALS AND PLANTS
  26. 26. NON-RENEWABLE ENERGIES AND THE ENVIRONMENT ATMOSPHERIC POLLUTION ROAD TRAFFIC AND INDUSTRIAL ACTIVITY EMIT PARTICLES IN SUSPENSION, HEAVY METALS AND GASES INTO THE ATMOSPHERE
  27. 27. RENEWABLE ENERGIESHYDRAULIC ENERGY DAM TO STORE RIVER WATER
  28. 28. RENEWABLE ENERGIES HYDRAULIC ENERGYHydraulic energy is used to produce electricity in hydrolectric powerstation. They need two things:
  29. 29. RENEWABLE ENERGIES HYDRAULIC ENERGYADVANTAGES DISADVANTAGESIts cheap Building requires a lot of money.Its clean Reservoirs can coverIts non- polluting productive lands and also destoy villages and landscapes affecting the animals and plants living on it.
  30. 30. RENEWABLE ENERGIES Is produced by thermonuclear radiation fromSOLAR ENERGY inside the sun in various waysHot water Solar panels Heliostat
  31. 31. RENEWABLE ENERGIESSOLAR ENERGYADVANTAGES DISAVANTAGESIts clean Depends of theBig power stations season are not needed ExpensiveIts unlimited
  32. 32. RENEWABLE ENERGIESWIND ENERGY.-Production and transformation:Its produced by the effects of radiation on the atmosphere.-Advantages:Its unlimited, and non-polluting.The cost is low.-Disadvantages:Its variable.Its a hazard for birds.produces noise pollution.
  33. 33. RENEWABLE ENERGIESMARINE ENERGY:There are several types:-Tidal energy: extracted from tides. energy-Ocean thermal energy: Its produced by the differences in energy temperature.-Wave energy: Obtained from the movement of sea waves. energy
  34. 34. RENEWABLE ENERGIESGEOTHERMAL ENERGY. ENERGYIt comes from the heat stored in the earths crust.-Geysers.-Volcanic eruptions.
  35. 35. RENEWABLE ENERGIESBIOMASS.It is produced from the remains of plants, forest...-It produce fuel into electricity.
  36. 36. RENEWABLE ENERGIESMUNICIPAL SOLID WASTE. (MSW).- It is generated in cities.-Electrical and thermal energy can be generated.
  37. 37. ENERGY POWER STATIONAn energy power station consists of an industrial facility for the production of electrical power.
  38. 38. WIND TURBINESA wind turbine is an object that transform kinetic energy from the wind into mechanical energy, this process is known as wind power.Wind turbines have long produced renewable energy but a French engineering firm has discovered another eco- purpose for the towering structures.

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