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ENERGY, WASTE TREATMENT, are natural resources from which we obtain…
ENERGY
ELECTRICITY
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Electric power plants
Electric power plants are facilities where primary or secondary energy s transformed into electnmty, Once electricity is generated, it must be transported to towns, cities or industrial parks
WASTE TREATMENT
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To reduce the waste generated by thermal power plants, as well as their effects, several measures can be taken.
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Waste from nuclear power plants is stored in drums with thick sides that do not let the nuclear radiation escape. These are then stored in ocean trenches and underground.
are natural resources from which we obtain different forms
of energy that can be transformed for a specific use
Household uses: the operating of electrical appliances, heating systems, hot water systems, heat for cooking and for means of
transport, for example.
Industrial uses: the operating of factories and companies,
construction, agnculture and so on.
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Increasing the voltage to 220 000 V or 400000 V to prevent
• signifcant energy loss, due to the Joule effect
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Distribution to homes, offices, industrries and public facilities. During
this stage, the voltage is reduced to 230-400V.
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Air is mixed with the gas and is burnt, which generates elctricity in the turbine-alternator system. The combustion gases are transported to a boiler, where they transfer their energy to the water during the second cycle
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This type of power plants uses the potential energy provided by the height of the stored water in a dam, converting it into kinetic energy. This energy moves the blades of the turbine. Depending on the destination of the water, hydraulic power plants are divided into two types: gravity or pump
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These power plants use kinetic energy of the wind to move the blades of a rotor at the top of a tower. Wind farms are a clean form of generating electricity.
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These plants use the energy rom the sun. There are two types of installations: photo-termal and photovoltaic power plants.
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These plants use the found at deep levels in the earth. This heat may reach the surface in the form of steam, gases of hot water. Geothermal energy may be used directly
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Biomass consist of all organic compunds that are produced through natural processes. The may come from the following sources:
Forestry and agricultural waste
Specific crops, such us sunflowers and sugar beet.
Waste from agri-food industries.
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These power plants use the energy from the seas and the oceans. The concept is to use three types of energy from the sea:
The meanical energy from the tides
The mechanical energy from the waves
The energy from the ocean's thermal gradient
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As part of a technical proiect, it's mandatory to carry out an environmental impact assessment to find out what changes it would provoke in the environment. An environmental study must also assess both the economic and social consequences of the project in the area, to decide whether or not to go ahead with the plan.
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