The process of producing electricity in geothermal power plant is depicted in the diagram. Overall, the method includes seven steps. The process begins when cold water is pumped down and finishes when electricity is produced by a generator.
When looking at the diagram, initially, the cold water stored in a container is pumped down into the injection well which is 4,5 kilometers deep. Prior to being pumped up in the production well, the water runs through the geothermal zone containing hot rocks playing the key role in increasing the water temperature.
Moving on to analyse the remaining stages of the process, once the hot water comes to the condenser on the surface, it releases steam which follows the pipe to rotate the turbine connected to a generator subsequently. In the penultimate step, the turbine activates the electrical generator and simultaneously, electricity is produced and transferred into the electricity grid.
- The pictures below show the process of making clothes from recycled plastic bottles Summarise the information by selecting and reporting the main features and make comparisons where relevant 61
- Some people claim that not enough of the waste from homes is recycled They say that the only way to increase recycling is for governments to make it a legal requirement To what extent do you thing laws are needed to make people recycle more of their waste 84
- Restoration of old buildings in main cities involves enormous government expenditure It would be more beneficial to spend this money to build new houses and roads To what extent do you agree or disagree Give reasons for your answer and include examples fr 56
- Some people say that music is a good way of bringing people of different cultures and ages together To what extent do you agree or disagree with this opinion 73
- Some people say that the government should spend more money taking care of elderly people while others think that government spending should be spent more on the education of young people Discuss both views and give your opinion 95