CONVENTIONAL ENERGY SOURCES
Conventional energies (as opposed to alternative energies, which aim to replace existing energy sources) are forms of energy massively used to meet the needs of production and consumption of humans.
Among these, the most used worldwide are nuclear energy and energy from fossil fuels (oil, coal, gas natural).
However, awareness seems to be taking place at the international level for the past few decades: conventional energy sources from which our way of life has become dependent are nonrenewable, that is to say that they cannot regenerate by themselves at a faster rate than the consumption that is made by humans.
In addition, the impacts of using these sources of energy are often most harmful to humans and the environment.
In nuclear power plants, fission is practiced of uranium atoms.
This results in heat generation to heat water and generate steam.
This will rotate turbines which, in turn, will generate electricity.
Nuclear power is the source of the most condensed and sophisticated energy of all that exists.
• The energy generated has great power.
• No release of greenhouse gases.
Fossil fuels, from which fossil energy is obtained, are produced at from rocks that formed through the fossilization of living plants in the form of petroleum, coal (hard coal) and natural gas.
These energy sources are nonrenewable because they are consumed excessively fast but they initially took millions of years to form. Ultimately, these resources will no longer be available and humans will have to find other ways to get energy ...
Petroleum is a product made up of molecules composed of carbon and hydrogen (that's why we often talk about petroleum in terms of hydrocarbons).
Since the 1850s, it has been the source of energy the largest in the world, making it a central constituent of the world economy whose majority of the countries of the world are dependent.
It can be used and transformed for produce fuels, fuels, lubricants, gases, etc.
United States, Canada and the Netherlands are the three countries that consume the most barrels of oil per capita annually, but China remains the country that has increased the most its oil consumption over the past 20 years.
● BENEFITS:
• Oil has a high energy density (ie a lot of power for little volume).
• Oil makes it possible to manufacture a host of derivative products.
● DISADVANTAGES :
• Emissions of large quantities of greenhouse gases through its combustion, which contributes to further global warming and greatly pollutes the environment.
• Oil reserves are very limited and their location is concentrated.
• The price of a barrel of oil is subject to unpredictable fluctuations.
Coal is a combustible sedimentary rock that is mainly found in the countries of the northern hemisphere.
Among these, the most used worldwide are nuclear energy and energy from fossil fuels (oil, coal, gas natural).
However, awareness seems to be taking place at the international level for the past few decades: conventional energy sources from which our way of life has become dependent are nonrenewable, that is to say that they cannot regenerate by themselves at a faster rate than the consumption that is made by humans.
In addition, the impacts of using these sources of energy are often most harmful to humans and the environment.
☆☆☆ NUCLEAR ENERGY
Nuclear energy, also called atomic energy, is produced from the fission of atoms (elements tiny compounds of a nucleus around which gravitate electrons).
In nuclear power plants, fission is practiced of uranium atoms.
This results in heat generation to heat water and generate steam.
This will rotate turbines which, in turn, will generate electricity.
Nuclear power is the source of the most condensed and sophisticated energy of all that exists.
● BENEFITS :
• Electricity produced at very competitive costs.
• The energy generated has great power.
• No release of greenhouse gases.
● DISADVANTAGES :
• The radioactive releases produced by nuclear power are very harmful to the health of humans (malformations, diseases, deaths ...) and the environment (contamination).
•The social costs of nuclear accidents can therefore be very expensive, think of the Chernobyl nuclear power plant disaster in 1986.
• Almost 2/3 of the electrical energy produced in nuclear power plants is lost in the form of heat.
• Fairly high production costs;.
• Disastrous use in the military sector (eg bombing Hiroshima and Nagasaki in Japan during the Second World War).
• Almost 2/3 of the electrical energy produced in nuclear power plants is lost in the form of heat.
• Fairly high production costs;.
• Disastrous use in the military sector (eg bombing Hiroshima and Nagasaki in Japan during the Second World War).
☆☆☆ FOSSIL ENERGY
Fossil fuels, from which fossil energy is obtained, are produced at from rocks that formed through the fossilization of living plants in the form of petroleum, coal (hard coal) and natural gas.
These energy sources are nonrenewable because they are consumed excessively fast but they initially took millions of years to form. Ultimately, these resources will no longer be available and humans will have to find other ways to get energy ...
● OIL
Petroleum is a product made up of molecules composed of carbon and hydrogen (that's why we often talk about petroleum in terms of hydrocarbons).
Since the 1850s, it has been the source of energy the largest in the world, making it a central constituent of the world economy whose majority of the countries of the world are dependent.
It can be used and transformed for produce fuels, fuels, lubricants, gases, etc.
United States, Canada and the Netherlands are the three countries that consume the most barrels of oil per capita annually, but China remains the country that has increased the most its oil consumption over the past 20 years.
● BENEFITS:
• Oil has a high energy density (ie a lot of power for little volume).
• Oil makes it possible to manufacture a host of derivative products.
● DISADVANTAGES :
• Emissions of large quantities of greenhouse gases through its combustion, which contributes to further global warming and greatly pollutes the environment.
• Oil reserves are very limited and their location is concentrated.
• The price of a barrel of oil is subject to unpredictable fluctuations.
☆☆☆ COAL
Coal is a combustible sedimentary rock that is mainly found in the countries of the northern hemisphere.
Four types of coal can be used to produce energy: anthracite (which has the greatest energy value), bituminous coal (for production steel and power for thermal power plants), coal under- bituminous and lignite (for the production of electrical energy).
It can be extracted by through vertical wells deep in the ground or by surface mining open.
China, the United States - the world's two largest producers of coal - and India is the three states with the highest coal requirements important.
● BENEFITS :
• World coal reserves are more abundant than gas natural and petroleum.
• The coal deposits are rather evenly distributed on the planet.
• The price of coal has been relatively stable in recent decades.
● DISADVANTAGES :
• Coal is considered to be the least "clean" of fuels fossil since it contributes to air pollution and acid rain by its ash and resulting gases.
• Emissions of large quantities of greenhouse gases through its combustion, which contributes to accentuate global warming.
• High risk level during extraction (mine collapse, damage to landscapes and the environment, toxic fumes for minors ...).
☆☆☆ NATURAL GAS
Natural gas consists of several gases - methane, ethane, propane, butane, enthane and others hydrocarbons - found in rocks porous.
Once extracted from the soil, it is treated and tablet to be stored and transported by gas pipeline (a type of pipeline intended to transport gas).
It can be used as much to heat homes and produce electricity than to power cars or for industrial needs (manufacture of materials, fertilizers, etc.).
The states- United and Russia, closely followed by Iran, are the three largest countries natural gas consumers around the world.
● BENEFITS :
• The energy efficiency of natural gas is higher than that of petroleum and coal.
• The polluting emissions generated are lower than those of petroleum and coal.
● DISADVANTAGES :
• Emissions of large quantities of greenhouse gases, which contributes to accentuate global warming.
• Natural gas is difficult to transport.
• The costs of production and processing of the resource are high
• Accidents involving pipelines can have consequences disastrous for humans and the environment (e.g. explosions and diffusion massive gas in the air ...).
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