Download - THE ENERGIES -Alice Zei -Lorenzo Santini -Paolo Urti -Guido Pasquinucci -Chiara Innocenti
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THE ENERGIES-Alice Zei-Lorenzo Santini-Paolo Urti-Guido Pasquinucci-Chiara Innocenti
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THE ENERGY
The energy in physics is defined as the ability to do work.
When we produce energy, a part of the final product is heat, that can't be reused as source of energy.
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Forms of energy Electric Energy Chemical Energy Solar Energy Thermic Energy Potential Energy Kinetic Energy Nuclear Energy
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EVERYTHING IN OUR LIFE IS AN ENERGY CONVERTION PROCESS
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THE WASTE OF ENERGY IS A PHYSICAL LAW!
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PRIMARY POWER SOURCE
Biomasses 10,0 %
Hydroelectric 2,2%
Nuclear 6,3%
Natural gas20,7%
Oil 30,5%
Coal 25,3 %
New renewable 0,5 %
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RENEWABLE ENERGIES:Hydroelettric
Energy from water
Solar Energy from sun
Wind Energy from wind
Sea Energy from sea
Geothermal Energy from earth
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NUCLEAR ENERGY
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ADVANTAGES: DISADVANTAGES :No CO2 pollution Not storable
Alternative source to fossil fuels
Only electric energy(22% of european energy consumption)Not renewableRadioactive scoriesRisk of disastersLegal and illegal production of nuclear weapons
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The world should adopt production facilities as described in the following table:
FACILITY TYPE QUANTITYWind turbines 3,8 million
Solar power plants 49 000
PV solar power plants 40 000
Solar panel for private 1,7 billion
Geothermal power plants 5350
Hydroelectric power plants 270
Wave power generation system
720 000
Tidal motrices 490 000
M.A.Delucchi, M.Z.Jacobson providing all global energy with wind, water and solar power. Energy policies
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WIND ENERGY
DISADVANTAGES: -ADVANTAGES: Based on weather - Clean energy Wind turbines have big size - Renewable energy
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HYDROELECTRIC ENERGY
It uses gravitational potential energy tranformation into kinetic energy possessed by water masses at high altitude.
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BENEFITS: The costs of electricity
production are among the lowest
Idroelectic basins are the ideal way to store energy in times of need
DISADVANTAGES:Dam construction has serious
consequences on people and environment
Hydroelectric basins in tropical areas can become large producers of “serra” gases
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SOLAR ENERGY
It's a primary source on earth, that makes life possible
The quantity of solar energy that arrives at us is enormous but too little concentrate
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How to collect solar energy:
Concentrating solar panel
Thermic solar panel
Photovoltaic panel
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ECOLOGICAL FOOTPRINT
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ENERGY SAVINGS
TO SAVE ENERGY!!