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Is it true that tidal energy can be used only near an island where tides are very high and very low?
Tidal power comes in two flavours - tidal range, which uses the difference in height of the tide between high tide and low tide, and tidal stream, which uses the speed of the tidal water as it moves round the coast. Tidal stream power extraction is most often found near islands and headlands where the flow is funneled between landmasses. This accelerates the flow, giving areas of high energy that can be extracted. Most tidal stream devices are more suited to these areas of high energy, however companies such as Minesto are concentrating on areas of lower energy, which are far more common and widespread. So to answer your question - most devices need the high flows found near islands and headlands, but there are one or two that don't.
How is tidal energy transformed into useful energy?
There is amazing power in the ocean tides moving in and out every 12 and a half hours. The energy in the moving water turns turbines to generate electricity.There are two types:The barrage dam type, which works like a hydro-electric river dam, excepts it holds the water back at high tide and then generates power by releasing the water.The tidal stream system, which is simpler, cheaper and less harmful to the environment, consisting simply of turbines in the stream of moving water.
What is a crucial characteristic of turbines in tidal generators?
A crucial characteristic of turbines in tidal generators is their ability to efficiently convert the kinetic energy of tidal currents into electricity. This requires turbines to be durable, reliable, and able to withstand harsh marine environments while maximizing energy output. Additionally, turbines must be designed to operate effectively in the variable flow speeds and directions typical of tidal currents.
What is the minimum tidal energy required for a practical tidal plant?
That depends on the kind of plant. There are two major types:1. Tidal turbines2. tidal barrages1. Tidal turbines are like wind-turbines but underwater. They need a current speed of at least 1m/s to start producing energy but current models are not economically viable for anything below 2m/s2. Tidal barrages are like dams across a bay or an estuary. Theyutilizethe difference in water level between high and low tide. They open their gates as the tide comes in to allow the water to collect behind the dam. at the highest point of the tide the gates close until low tide is reached. the water is then release via turbines until the water level behind the dam is equal to the sea level. When the tide comes in again the cycle repeats. These kind of tidal plants need a difference between high and low tide of at least 5-7 meters although the bigger the difference the better.
What are some interesting facts about tidal energy?
Tidal energy is clean, green, and renewable with no harmful carbon dioxide emissions.It is not increasing global warming, unlike fossil fuel (coal, oil and natural gas) energy.
Two ways which energy can be extracted from the ocean?
Two ways to extract energy from the ocean are through wave energy, using the motion of ocean waves to generate electricity through specialized devices, and tidal energy, harnessing the power of tidal movements to turn turbines and create electricity.
How many different non-conventional sources are being used in UK?
Two-Solar energy and tidal energy.
Which two energy sources are not directly tied to solar energy?
Tidal energy, and the heat from the interior of Earth.
Where tidal energy is used?
Tidal energy (or tidal power) can be used wherever there is a large bay or river mouth with a narrow outlet to the sea. This means the tides rush in and out at speed and are able to spin electricity turbines. The are two functioning tidal power plants in the world is in France (Rance) and it is a 240 MW unit and a 254 MW unit called the Sihwa Lake Tidal Power Plant in South Korea.
What are the two ways that energy stored in dead organisms is used?
Energy stored from dead organisms can be used in two ways. They can either be eaten by other organisms or decomposed by bacteria with the nutrients absorbed in the soil to be used by plants.
Is it true that tidal energy can be used only near an island where tides are very high and very low?
Tidal power comes in two flavours - tidal range, which uses the difference in height of the tide between high tide and low tide, and tidal stream, which uses the speed of the tidal water as it moves round the coast. Tidal stream power extraction is most often found near islands and headlands where the flow is funneled between landmasses. This accelerates the flow, giving areas of high energy that can be extracted. Most tidal stream devices are more suited to these areas of high energy, however companies such as Minesto are concentrating on areas of lower energy, which are far more common and widespread. So to answer your question - most devices need the high flows found near islands and headlands, but there are one or two that don't.
What are two ways to use energy?
geothermal energy is used directly for heating and to turn turbines to geberate electrictity.
Where would ocean energy most likely be used and why?
There are at least three forms of ocean energy.Tidal energy can be used where there is a bay or inlet with a narrow opening to the sea, where the tidal water moves in and out at speed.Wave energy can be used wherever there are substantial ocean waves close enough to land to collect the electricity easily.Ocean Thermal energy is used where the surface of the ocean is warm (the tropics) but where there is cold water nearby (deep water). The difference between the two temperatures can be used to generate electricity.
Name two ways in which foods are used by the body?
Two ways foods are used by the body are for growing and repairing tissues (they supply the materials to do it.) Another thing is they provide the body with energy.
Can Tidal energy be used where you live?
No, because tidal energy needs a large bay that fills up with water at high tide, but it also needs a narrow opening to the sea, so that the outgoing water rushes through at a great speed. Because there are only two tides a day there are not many places round the world where it is economical to build a tidal power station.
Which is not driving by energy from the sun?
Most of the energy used on Earth ultimately comes from the Sun; the two major exceptions are:* Tidal energy - here, the energy comes from Earth's rotation. * Geothermal energy - here, the energy comes mainly from radioactive decay in Earth's interior.
What are two types of energy that do not cause acid rain?
Wind, solar, nuclear, tidal, geothermal...
