The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features and make comparisons where relevant.
The diagram describes the process when electricity is produced by geothermal energy.
Overall, there are five steps in the production of electricity by geothermal energy, starting from pumping down cold water and ending by pumping up hot waster in a condenser.
In the first step, cold water is going down 4.5 km underground through the injection well. then, the water is injected into the geothermal zone, where hot rocks alter the cold water into hot as it passes through the Earth. Once the water has been heated up, it enters the production well and is then pumped up to the ground in a condenser.
The last two stages are carried out above water at the power plant. Firstly, the hot water produces steam in the condenser. In the next step, the steam powers the turbine which makes it turn. Finally, the turbine powers the generator, which produces the electricity. The latter is transferred into electric grid via power lines.
- Some people think painting and drawings are as important as other subjects they should be compulsory in high school education To what extent do you agree or disagree 78
- It is important for children to learn the difference between right and wrong at an early age Punishment is necessary to help them learn this distinction To what extent do you agree or disagree with this opinion What sort of punishment should parents and t 67
- The table below shows the hours of leisure time spent by people in different age groups in Someland Summarise the information by selecting and reporting the main features and make comparisons where relevant 61
- As countries become more developed many fast food outlets move into the country giving local people greater access to fast food Do the advantages of this outweigh the disadvantages 78
- The internet has transformed the way information is shared and consumed but it has also created problems that did not exist before What are the most serious problems associated with the internet and what solutions can you suggest 67