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Transcript

GEOTHERMAL POWER PLANT

CHARACTERISTICS

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PROFITABILITY AND EFFICIENCY

  • Low cost
  • Long life
  • Constant energy

  • Resource temperature
  • Waste heat utilization

ADVANTAGES / DISADVANTAGES

ENERGY DISTRIBUTION

GEOTHERMAL POWER PLANT IN SPAIN

  • High potential in Canary Islands
  • Challenges: high costs, geological difficulties, technological barriers...

ADVANTAGES / DISADVANTAGES

CONCLUSION

Geothermal power plants provide constant, eco-friendly energy with minimal emissions and lower land than any other power plant.

1. Geothermal wells: These are like big holes in the ground, drilled to reach places where there is a lot of heat under the Earth. Hot water or steam is extracted from these wells.

2. Steam separator: If the hot water comes out mixed with steam, this device separates them. The steam is used to generate electricity.

3. Subsoil: The liquid water is returned to the subsoil so that it can be heated again.

4. Turbine: The hot steam passes through this machine, which has blades. The steam turns the blades, generating movement.

5. Generator: This device is connected to the turbine. The generator converts that motion into electricity.

7. Cooling system: If necessary, cooling towers or systems are used to lower the temperature of the water before returning it to the ground or continuing to use it.

6. Condenser: After passing through the turbine, the steam cools and turns back into water.

8. Reinjection system: The water that was cooled is returned to the earth to continue the process without losing the resource.

9. Control system: This system ensures that everything works correctly, controls the amount of steam extracted and that the process is efficient.

Obtain electricity, hot water and heating through the heat inside the earth, don't need to use fossil fuels.

Type of renewable energy, used for a long time, is not very well known.

Learned to use it 19th century, there were many volcanic eruptions, that can destroy almos everything, and they use that heat to generate energy.

François Jacques developed a technique (collect the steam given off by the cracks in the earth).

The Earth uses its own heat, made by some elements in its core and mantle. This heat comes from subway sources.

In conclusion, geothermal energy is different becausem of its low environmental impact.

The profitability of a geothermal power plant is related to its ability to generate profits and return on initial investment.

TRANSMISSION: Electricity travels through cables we can see along highways or fields, they carry the electricity over long distances to cities.

DISTRIBUTION: When electricity arrives cities, they need to "step down" the voltage so they come through special stations for it.

MONITORING AND CONTROL: This process has to be constantly monitored (SCADA)

After construction, the cost to maintain it is relatively low, since it does not require continuous purchase of fuel.

They are very durable, they can be in operation for 50-60 years, not depending on weather conditions.

It produces energy 24/7 that generates constant production.

This energy plant can be found all over the world.

Theres a lot of this energy compared to natural gases, but it is not infinite. There's more of this energy than the others.

Producing this energy is much cheaper than producing energy from nuclear plants.

The higher the temperature of the steam or hot water, the more efficient it is.

These can eliminate pollutants like minerals.

Some use the heat that is not converted into electricity for heating...

Pollution from this energy source is only a bit, but the environmental impact can be high in areas where are forests with centrals.

There are still no ways to transport the energy generated by this method.

POWER GENERATION: Uses heat from the earth to generate electricity. This heat boils water to spin a turbine, which produces electicity.

Water use and contamination

Air emissions

Habitat disruption

Low greenhouse gas emissions

small land footprint

Renewable and sustainable