TYPES OF ENERGY
There are two type of energy sources which are commonly use nowadays, renewable and non-renewable resources. Renewable resources is the energy source that can either be naturally reused or reproduced in a short time period. Renewable resources mainly impact environment in a positive ways. For instance, by using renewable resources to generate electricity, greenhouse gases will not be produce and will not hurt the environment in any way. Moreover, there will be diverse and numerous type of energy supply which can be use in the future. Renewable resources also impact the economic by giving jobs to the one who is inoperative and those who does not have work to do. On the other hand non-renewable resources impact the world in both negative and positive life. Non-renewable resources is the energy source that cannot be neither reproduce nor reused. The supply for the non-renewable sources is limited and it outcome as gases, solids and liquids.
WAYS ELECTRICITY CAN BE GENERATED
Electricity and lights is the most necessities factor which needed in life. Without light or electricity, the world nowadays would entirely feel strange for not having any electricity to use which indicated how electricity is very important in that time period.
Wind Turbines
The wind generated convection currents in the Earth’s atmosphere whereas the heat is compelled from the sun. The kinetic energy in wind is renewable resource. Wind turbines generate electricity when the wind turns the blade and spin a shaft (the blades are attached to a hub which control the spin as the blade turn) and the electricity is transmit through transmission lines to a substation. The winder turbines own a large blades which are joint to a nacelle which linked to a generator that produce electricity. The kinetic energy is transfer to the blades as the wind blows which subsequently drive the generator and generated electric.
Advantages:
1. No fuel costs 2. Harmful pollution gases cannot be produced 3. Wind turbines is a renewable sources |
Disadvantages:
1. Electricity cannot be generated without wind 2. The amount of electricity which can be generated is rely on the resistance of wind 3. The appearance of wind turbines is not aesthetic 4. Wind farms are noisy |
Coal Power stations
Coal is made up of oxygen, nitrogen, carbon, hydrogen and sulphur. Coal is usually found in underground deposit, there are three types of coal which is bituminous, anthracite and lignite. Heat energy is released when coals are burned. Coal is one of the fossil fuels as it was formed by the abide living creatures.
A coal power stations convert the chemical energy into a electrical energy which can be utilize at home and businesses. When the coal is milled to a magnificent powder, it increases the surface area and coal can be burn more swiftly. Hot ages and heat energy generate adapt water boiling into a steam.
A coal power stations convert the chemical energy into a electrical energy which can be utilize at home and businesses. When the coal is milled to a magnificent powder, it increases the surface area and coal can be burn more swiftly. Hot ages and heat energy generate adapt water boiling into a steam.
Advantages:
1. The cost is cheap 2. Versatile and plentiful 3. Easy to store and transfer 4. Found in numerous area of the world |
Disadvantages:
1. Supply is limited and will ultimately run out sooner or later 2. Non-renewable resources which is exhaustible 3. Release carbon dioxide when the coal is burn which impact greenhouse and causes global warming 4. Coal release sulphur dioxide and gas when it burn which may caused breathing issue for all living organism and may conduce in acid rain. |
Hydroelectricity
Hydroelectricity or hydroelectric power is the generation of electric through the force of falling water. Hydroelectric power is similar to tidal barrage, kinetic energy is required to move water in hydroelectric power stations and the gravitational potential energy is contain in the water high up behind the damn. As water rushes down through the dam, it transfer kinetic energy which turns turbines that turn the electrical generators.
Advantages:
1. Hydroelectricity is a renewable resource 2. No fuel costs 3. Harmful polluting gases cannot be produced warming 4. This power house is very dependable and can be swiftly turn on . |
Disadvantages:
1. Arduous to extent the size of wave machines in order to produce a lot of electricity 2. Hydroelectricity dams flood farmland and destroy natural environment 3. Expensive cost of dam construction 4. The construction of a large dam can probably cause serious geological damage |
Tidal Power
Tidal energy is generated by using tidal energy generators. Enormous underwater turbines are positioned where there is high tidal movements. The underwater turbines is designed to apprehend the kinetic motion of the ocean tides for the purpose of producing electricity. Because of the tides, it cause large amounts of water to move in and out of estuary everyday. A tidal barrage is created over a river mouth to let the kinetic energy move the water. The barrage consist electricity generators which allows water to move through the tubes in the barrier.
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Nuclear Power
Nuclear fuels are radioactive metals, nuclear fuels include uranium and plutonium. Nuclear fuels do not release the energy by burning but involve with the nuclear reactions which causes the heat to be released. The process of generation electricity through nuclear power is similar to the coal power process. The heat is used in boil water then the kinetic energy expanded steam spins turbines and eventually drive the generator to generate electric.
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Solar Energy
Solar energy contain two devices for the electricity to be generated, solar cells and solar panels. Solar cells or photovoltaic cells are expedient which instantly turns light energy to electrical energy. The solar cells is likely to rely on the photoelectric effect, the capacity of substances to sent out electrons when light is emit. In fact, solar panels do not generate light; in place, they heat up the water. Solar panels are usually located on top of the roof or where the sun shone on. Solar panels work when cold water is blowed up to the solar panel heats up and pass on to a storage tank. Heat energy which were receive from the sun heated the water returns to the tank and generate electricity.
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