Energy Transfers Flashcards

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1
Q

How does a Nuclear power plant station work?

A
  1. The nuclear reactor core contains fuel rods made of uranium or plutonium. 2. When neutrons hit the fuel rods, they split the atoms in a process called nuclear fission. This releases a tremendous amount of heat energy. 3. Water circulating around the fuel rods gets heated by this process. 4. The hot water is used to produce steam. 5. The steam spins a turbine, which is connected to a generator. 6. As the turbine spins, the generator produces electricity. 7. After spinning the turbine, the steam is cooled back into water and recirculated to be heated again, repeating the cycle.
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2
Q

How does a hydro electric power station work?

A

Water is in a resevouire and one day a gate is opened which allows water to pass through and move the turbines which generates electricity through a generator.It is then put through a transformer to increase the voltage and is then sent to homes.

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3
Q

How does wind work?

A
  1. The wind causes the turbine blades to rotate around a rotor. 2. The rotating blades spin a shaft inside the nacelle, which is connected to a gearbox. 3. The gearbox increases the rotational speed and transfers it to a generator.4. The generator converts the mechanical energy from the rotating shaft into electrical energy.5. The generated electricity is transmitted down the tower and sent through underground cables to a substation. 6. At the substation, the voltage is increased for efficient transmission over long distances to the electrical grid.
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4
Q

How does wave work?

A

A wave generator uses wave motion to drive a generator move up and down, this turns the generator to mechanical energy to electrical energy which is transferred to the shore via a cable

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5
Q

How does tidal work?

A

Water flows through turbines, generating electricity as tides come in and out.

It works through the natural rise and fall of ocean tides.

It utilizes the gravitational pull of the moon and sun, along with the rotation of the Earth

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6
Q

Which energy resources a renewable and not renewable

A

Renewable Non renewable
Geothermal Coal
Hydro electric. Oil
Tidal. Gas
Wave. Nuclear
Wind
Biofuel

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7
Q

Operation of a fossil fuel power station?

A

Starts of with coal being brought by normally truck.It is then put in a fire in the boiler room.Water is then passed through which is heated and once it reaches a certain temperature it starts to create steam.the water is then cooled and This steam then pushes a turbine which then generates electricity through a generator,it is then pushed through a transformer which increases the voltage.

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8
Q

Why biofuels are considered carbon nuetral?

A

This is due to when carbon is released it balances by the co2 absorbed from the atmosphere during the growth of the plant.

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9
Q

Problems with biofuels

A

We can see a problem with biofuels is that there isnt enough to source people for there daily needs.Its also quiet expensive

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10
Q

Benefits and negatives of renewable energy resources

A

Benefits:Cheap to maintain,re usable,energy resource is unlimited
Negatives:Expensive,un reliable

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11
Q

The purpose of pumped storage systems.

A

We can see the benefits and purpose of it is to save more energy for a later use.For example if less energy is used in the night instead of turning the energy resource off.Let it run at night but save it for the day when needed more.Another benefit is this reduces costs.

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12
Q

How does a solar cell work?

A

Absorption of Sunlight: Solar cells are made of materials, like silicon, that can absorb photons (particles of light) from the sun.

Generating Electricity: When sunlight hits the solar cell, the energy from the photons knocks electrons loose from the atoms in the material, creating an electric current.

Electricity Collection: The electric current generated flows through the material and is collected by metal contacts on the cell’s surface.

Direct Current (DC): Solar cells produce direct current (DC) electricity. This can be used to power devices directly or stored in batteries for later use.

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13
Q

How does geo thermal work?

A

They use drills to drill down and drill the earths hot core which heats water and then turns into steam which turns a turbine and generates electricity through a generator,the water is then cooled to be re used

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14
Q

How does acid rain and climate change affect our planet?

A

Harms Nature: Acid rain damages plants, trees, and water bodies.

Dirty Water: It makes rivers and lakes too acidic for fish and other animals.

Health Issues: Breathing it in can cause lung problems, and drinking acid rain water isn’t safe.

Eats Buildings: It wears away buildings, bridges, and statues.

Costs Money: Fixing the damage caused by acid rain costs a lot of money.

Climate Change:

Gets Hotter: The Earth is warming up because of pollution.

Crazy Weather: We get more floods, droughts, and storms.

Animals in Trouble: Animals and plants are losing their homes.

Makes People Sick: Breathing dirty air from climate change can hurt our health.

Costs a Ton: Dealing with climate change costs a lot of money, like fixing things after big storms.

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15
Q

evaluate methods of reducing
damage caused by waste products of
fossil fuels and nuclear fuels.

A

Fossil Fuels:

Carbon Capture and Storage (CCS): Traps carbon dioxide emissions from power plants and stores them underground.
Nuclear Fuels:

Nuclear Waste Recycling: Reprocesses spent nuclear fuel to recover usable materials and reduce waste volume.

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