Geothermal power 2014

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Comment on group work

I didn´t get your presentation yet! In your contributions you´ve discussed certain items more than once. Also I miss items like for instance the advantages and disadvantages. You must improve!

User:ES-Maria

How does it work?

Heat from the earth can be used as an energy source in many ways, from large and complex power stations to small and relatively simple pumping systems. This heat energy, known as geothermal energy, can be found almost anywhere—as far away as remote deep wells in Indonesia and as close as the dirt in our backyards. Ground-source heat pumps.

A much more conventional way to tap geothermal energy is by using geothermal heat pumps to provide heat and cooling to buildings.

Comment of Ms. Doolaard

Use your own words. Use a picture to explain how it works. Use oC instead of oF.

User:ES-Miriam

- What is the effect on the environment?

Natural features such as hot springs, mud pools, sinter terraces, geysers, and steaming ground can be easily, and irreparably,by geothermal development.

SUBSIDENCE Extracting geothermal fluids can reduce the pressure in underground reservoirs and cause the land to sink.

PULLUTING WATER Geothermal fluids contain elevated levels of arsenic, mercury, lithium and boron because of the underground contact between hot fluids and rocks. A serious environmental effect of the geothermal industry is arsenic pollution.


Comment of Ms. Doolaard

This is absolutely not about geothermal power! You didn't do anything with my comment.

User:ES-Octavian

- Can it be used in the Netherlands or in Spain, why? Yes because In The Nederlands people create a TNO organization in 1932

This independent research organization was established in 1932 to support companies and governments with innovative, practicable knowledge.The TNO organization cost 50 billion euro Number of employees: 5,400


Interest Currently over 80 permits granted by the Ministry of Economic affairs Market needs • Geological properties and uncertainties •Independent analysis and information • Overview potential areas and ‘hot spots’ • Performance assessment • Economic • Quickscan In the Netherland can be Geothermal energy because it haves the thinks that it needs.

Comment of Ms. Doolaard

This is not about geothermal power! You didn't do anything with my comment.

User:NL-Bart

                               Can Geothermal Power be used in the Netherlands or Spain. Why Not???

What do you need for geothermal power?

  • Heat from the earth(182°C): How warm the earth is at certain levels/points.

Heat from the earth.jpeg Heat levels at certain point.

  • Water: A liquid which you can find almost everywhere.

Geothermal Power.jpeg How Geothermal production works.

Is the Netherlands or Spain able to provide al those resources????

Netherlands: The heat in the earth is not distributed over the earths surface. As example in Iceland you have temperatures of 200°C at a depth of 1000 meters but in the Netherlands the earth has a temperature of 40°C at the same depth. When you want to make geothermal power you need an earth which is 182°C. Now you have a problem. This problem is that you need a heat level of 182°C but in the Netherlands we do not have a heat level of 182°C in the ground. This is the reason why we can't make geothermal power in the Netherlands because the ground isn’t warm enough.

Spain: Does Spain has the temperature of the ground which is needed for geothermal power(182°C). In Spain it is also impossible to make Geothermal energy. This is because the temperature in Spain is also not warm enough just the same as the Netherlands. This is the reason why Spain can not make Geothermal Power.

General: In general this results that you see above mean that you are not able to perform Geothermal power in both countries.

Comment of Ms. Doolaard

This is correct.

User:NL-Delainey

science project :How can we generate electricity? : 2t H/V "Explain how electricity is generated with help of your energy source" Most power plants need steam to generate electricity. The steam rotates a turbine that activates a generator, and then the generator does his work by generating electrisity ,however, he uses steam, produced from reservoirs of hot water found a couple of miles or more, below the Earth's surface. and after the energy is generated the enrgy goes to the houses. there are three types of geothermal power plants:

  • dry steam
  • flash steam
  • binary cycle


How does it work.gif

Comment of Ms. Doolaard

Please use a picture.

User:NL-Nienke

Geothermal power [edit] Where can you find plants of this source and why?

Geothermal power is made by a special steam.The steam is produced underground where the earth is above the 150 degrees There are three types of geothermal steam; dry steam, flash steam, and binary cycle.

  • Dry steam comes from the underground and is pumped up through pipelines and than brought to a genarator which turns the dry steam into energy.
  • Flash steam is the most commen one. The water which is used for the production is more than 182 degrees. The very hot water flows through the ground and put on pressure. When the water flows up the pressure is decreasing and the hot water gets steam. The steam is seperated from the water and brought to a generator which turns it into energy.
  • Binary cycle operates on water which is 107-182 degrees. This water is brought cooking and than it turns into steam which is transported to a generator and turned into energy.

This energy is renewable because if you just put new cold water down the pipe where you first got the steam from and there return new steam.

How does it work.jpeg [[File:Geothermal energy used in the US.jpg== ]]

Comment of Ms. Doolaard

Use a picture to explain.